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    Wyświetlanie 1-34 z 34
    Tytuł:
    Remediation technologies of diazinon and malathion residues in aquatic system
    Autorzy:
    Derbalah, A.
    Ismail, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/207344.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    biotechnology
    bioremediation
    microorganisms
    water pollution
    remediation technologies
    contaminated water
    biotechnologia
    bioremediacja
    mikroorganizmy
    zanieczyszczenie wody
    remediacja
    techniki remediacyjne
    woda zanieczyszczona
    Opis:
    The study was carried out to evaluate the efficiencies of various remediation technologies (advanced oxidation processes and bioremediation) for removing diazinon and malathion residues from water. Nano photo-Fenton reagent (Fe0(nano)/H2O2AJV) was the most effective treatment for diazinon and malathion removal while ultraviolet alone was the least effective one. Bioremediation of diazinon and malathion by effective microorganisms (EMs) removed about 100% of their initial concentration. There was no remaining toxicity in contaminated water after remediation except for ultraviolet alone on treated rats. Advanced oxidation processes with nanomaterials and bioremediation with effective microorganisms can be regarded as safe and effective remediation technologies.
    Źródło:
    Environment Protection Engineering; 2013, 39, 3; 135-147
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Service quality as a predictor of customer satisfaction and customer loyalty
    Poziom obsługi klienta jako wskaźnik poziomu zadowolenia klienta oraz lojalności klienta
    Autorzy:
    Ismail, A.
    Yunan, Y. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/362300.pdf
    Data publikacji:
    2016
    Wydawca:
    Wyższa Szkoła Logistyki
    Tematy:
    logistics
    service quality
    customer satisfaction
    customer loyalty
    army medical centers
    SmartPLS
    jakość obsługi
    zadowolenia klienta
    lojalność klienta
    wojskowe centra medyczne
    Opis:
    Background: Service quality, customer satisfaction and customer loyalty have received a special attention in the recent health sector literature. The aim of this study was to examine the correlation between service quality and customer satisfaction as well as the correlation between service quality and customer loyalty. Methods: The self-report questionnaires gathered from patients at army medical centres in West Malaysia were used for this purpose. Results: The outcomes of SmartPLS path model analysis showed that service quality dimensions, namely tangible, reliability, responsiveness, assurance and empathy were significantly correlated with customer satisfaction and customer loyalty. Conclusions: This finding confirms that the capability of service providers to appropriately implement the quality dimensions in providing medical services has enhanced customer satisfaction and customer loyalty in the organizational sample.
    Wstęp: Poziom obsługi klienta, zadowolenia klienta jak i lojalność klienta to zagadnienia, którym ostatnio poświęca się sporo uwagi w fachowej literaturze dotyczącej ochrony zdrowia. Celem tej pracy było zbadanie występowania zależności pomiędzy jakością obsługi i zadowoleniem klienta jak również zależnością pomiędzy jakością obsługi i lojalnością klienta. Metody Badania zostały przeprowadzone przy użyciu ankiety wśród pacjentów wojskowych centrów medycznych na terenie Zachodniej Malezji. Wyniki: Wyniki uzyskane przy zastosowaniu analizy SmartPLS wskazują, że takie składowe jakości obsługi jak: konkretność, niezawodność, odpowiedzialność, bezpieczeństwa i empatia są istotnie skorelowane z zadowoleniem klienta oraz lojalnością klienta. Wnioski: Otrzymane wyniki potwierdzają możliwość dostawcy usług na takie kształtowanie oferowanych usług medycznych, aby zwiększyć poziom zadowolenia klienta oraz jego lojalności.
    Źródło:
    LogForum; 2016, 12, 4; 269-283
    1734-459X
    Pojawia się w:
    LogForum
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Monitoring and remediation technologies of organochlorine pesticides in drainage water
    Autorzy:
    Ismail, A.
    Derbalah, A
    Shaheen, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/778156.pdf
    Data publikacji:
    2015
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    lindane
    remediation
    toxicity
    degradation
    water
    Opis:
    This study was carried out to monitor the presence of organochlorine in drainage water in Kafr-El-Sheikh Governorate, Egypt. Furthermore, to evaluate the efficiencies of different remediation techniques (advanced oxidation processes [AOPs] and bioremediation) for removing the most frequently detected compound (lindane) in drainage water. The results showed the presence of several organochlorine pesticides in all sampling sites. Lindane was detected with high frequency relative to other detected organochlorine in drainage water. Nano photo-Fenton like reagent was the most effective treatment for lindane removal in drainage water. Bioremediation of lindane by effective microorganisms (EMs) removed 100% of the lindane initial concentration. There is no remaining toxicity in lindane contaminated-water after remediation on treated rats relative to control with respect to histopathological changes in liver and kidney. Advanced oxidation processes especially with nanomaterials and bioremediation using effective microorganisms can be regarded as safe and effective remediation technologies of lindane in water.
    Źródło:
    Polish Journal of Chemical Technology; 2015, 17, 1; 115-122
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Monitoring of organophosphorus pesticides and remediation technologies of the frequently detected compound (chlorpyrifos) in drinking water
    Autorzy:
    Derbalah, A.
    Ismail, A.
    Shaheen, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/778327.pdf
    Data publikacji:
    2013
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    chlorpyrifos
    pollution
    toxicity
    water
    remediation
    Opis:
    Studies on the currently used organophosphorus insecticides with respect to their environmental levels and effective remediation technologies for their residues in water have been considered as a source of major concern. This study was carried out to monitor the presence of organophosphorus in drinking water plants (Kafr-El-Shiekh, Ebshan, Elhamoul, Mehalt Aboali, Fowa, Balteem and Metobess) in Kafr-El-Shiekh Governorate, Egypt. Furthermore, it was carried out to evaluate the efficiency of different remediation technologies (advanced oxidation processes and bioremediation) for removing chlorpyrifos in drinking water. The results showed the presence of several organophosphorus pesticides in water sampling sites. Chlorpyrifos was detected with high frequency relative to other compounds in drinking water. Nano photo-Fenton like reagent (Fe2O3(nano)/H2O2/UV) was the most effective treatment for chlorpyrifos removal in drinking water followed by ZnO(nano)/H2O2/UV, Fe3+/H2O2/UV and ZnO/H2O2/ UV, respectively. Bioremediation of chlorpyrifos by effective microorganisms (EMs) removed 100% of the chlorpyrifos initial concentration after 23 days of treatment. There is no remaining toxicity in chlorpyrifos contaminated-water after remediation on treated rats with respect to cholinesterase activity and histological changes in kidney and liver relative to control. Advanced oxidation processes especially with nanomaterials and bioremediation with effective microorganisms can be regarded as safe and effective remediation technologies for chlorpyrifos in drinking water.
    Źródło:
    Polish Journal of Chemical Technology; 2013, 15, 3; 25-34
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The simulation of performance characteristics of port injection dedicated compressed natural gas spark ignition engine
    Autorzy:
    Semin, Semin
    Abu Bakar, R.
    Ismail, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/950139.pdf
    Data publikacji:
    2008
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    CNG engine
    computational modelling
    engine performance
    port/sequential injection
    Opis:
    This paper presents the computational modelling simulation results of port/sequential injection dedicated compressed natural gas (CNG) spark ignition engine to investigate and evaluate the engine performance while base engine converted by using compressed natural gas as an alternative fuel. The baseline engine in this research is four stroke direct injection diesel engine. The computational modelling design and development has performed using GT-Power software at Automotive Excellent Centre Laboratory, Faculty of Mechanical Engineering, University Malaysia Pahang, Malaysia. To investigate the engine performance, the engine computational model is operated between 500-4000 rpm, under steady state condition. In this research, the sequential injection dedicated compressed natural gas spark ignition engine performance investigation results such as torque, power, fuel consumption pressure and exhaust gas emissions were investigated and compared to base diesel engine performance. From the CNG engine computational modelling simulation results are shown that by development of sequential injection dedicated compressed natural gas spark ignition engine has a potential to reduce the engine emissions. Unfortunately, the development of sequential injection dedicated compressed natural gas spark ignition engine can be reducing the engine performance. However, the study of required to improve the performance of sequential injection dedicated compressed natural gas spark ignition engine has a potential of reducing engine.
    Źródło:
    Journal of KONES; 2008, 15, 2; 427-432
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The administration of leadership training programs enhance the trainees’ motivation to learn
    Administracja programów szkoleniowych zwiększająca motywację uczestników do nauki
    Autorzy:
    Ismail, A.
    Zainol, N. A. M.
    Ahmad, N. N.
    Powiązania:
    https://bibliotekanauki.pl/articles/362290.pdf
    Data publikacji:
    2017
    Wydawca:
    Wyższa Szkoła Logistyki
    Tematy:
    course content
    instructors’ roles
    motivation to learn
    SmartPLS
    kurs szkoleniowy
    rola instruktora
    motywacja do nauki
    Opis:
    Background: The aim of this paper is to examine the relationship between the administration of leadership training programs and trainees’ motivation to learn. Self-administered questionnaires were distributed to collect data from junior army leaders in Peninsular Malaysia. Methods: A cross sectional method was employed in this study because it allowed the researchers to integrate the LTP literature, the pilot study and the actual survey as the main procedures to collect data. Beside a purposive sampling technique was used to distribute 300 self-report questionnaires to junior army leaders at the organization and the survey questionnaire data were analyzed using SmartPLS. Results: The results show that the ability of senior administrators to appropriately use a well-designed course content and select the right instructors to teach and facilitate trainees had enhanced trainees’ motivation to learn in the organizational sample. Conclusions: This study tested a conceptual schema developed based on the LTP research literature. The results of the confirmatory factor analysis showed that the instrument used in this study satisfactorily met the standard of validity and reliability analyses. Furthermore, the outcomes of the SmartPLS path model proved that course content and instructors’ roles were important predictors of trainees’ motivation to learn in the organizations.
    Wstęp: Celem pracy było zbadanie związku między administracją programów szkoleniowych zarządzania a motywacją uczestników do nauki. W tym celu zostały skierowane ankiety do młodych przywódców armii w Malezji. Metody: Zastosowano metodę krzyżową, jako główną metodą zbierania danych, aby lepiej połączyć istniejące publikacje naukowe, badanie pilotażowe oraz aktualne badania. Zastosowano badanie ankietowe na próbie losowej 300 młodych przywódców armii. Uzyskane wyniki poddano analizie przy zastosowaniu SmartPLS. Wyniki: Wyniki wskazują na zdolność doświadczonych administratorów na prawidłowe stosowanie dobrze przygotowanych materiałów szkoleniowych oraz na dobór właściwych instruktorów do prowadzenia szkoleń oraz zwiększenia motywacji uczestników do nauki w badanej organizacji. Wnioski: Testowano koncepcyjny schemat opracowany na podstawie przeglądu literatury naukowej. Wyniki przeprowadzonej analizy wykazują, że instrument użyty w pracy w sposób satysfakcjonujący spełnił standardy analizy trafności oraz niezawodności. Wyniki modelu ścieżki SmartPLS zaakceptowały treści szkoleniowej oraz rolę instruktorów, jako ważnych czynników wpływających na poziom motywacji uczestników do nauki w badanej organizacji.
    Źródło:
    LogForum; 2017, 13, 4; 465-477
    1734-459X
    Pojawia się w:
    LogForum
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synthesized and characterization of pure and Er+3 doped ZnO nanoparticles by using laser ablation in ethanol
    Autorzy:
    Ismail, Raid A.
    Habubi, Nadir F.
    Powiązania:
    https://bibliotekanauki.pl/articles/1191374.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    AFM
    Er doping
    Heterojunction
    XRD
    Zinc Oxide
    nanocollidal suspension
    Opis:
    Pulsed laser ablation in ethanol at room temperature with laser fluence 4.62 J/cm2 was employed to synthesize pure zinc oxide (ZnO) and Er- doped ZnO nanocolloidal suspension. The structural properties were determined by using x-ray diffraction (XRD) method and was confirmed its hexagonal wurtzite structure. The photoluminescence spectra (PL), AFM and FTIR measurement of the synthesized pure and Er-doped ZnO is carried out. The photoluminescence spectra measurements show that all the samples have ultraviolet emission and green emission and the surface granular morphology. The FTIR spectra indicate the existence of Zn-O, Er-O-Er and Er-O stretching modes. Al/ZnO/P-Si/Al and Al/Er-ZnO/P-Si/Al photodetectors hetrojunction has two peaks of response located at 650 nm for and 790 nm and the first peak shifted to 550nm for the doped hetrojunction with max sensitivity 0.7A/W. The maximum specific detectivity is 4.3×1012 W-1•cm•Hz-1 and 3×1012 W-1 •cm•Hz-1 for undoped and doped hetrojunctions respectively. The values of the built-in potentials 0.9 volt for Al/ZnO/P-Si/Al heterojunction and 0.6 volt for Al/Er-ZnO/P-Si/Al hetrojunction.
    Źródło:
    World Scientific News; 2016, 33; 67-78
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of membrane pore structure on protein detection sensitivity of affinity-based immunoassay
    Autorzy:
    Ahmad, A. L.
    Ideris, N.
    Ooi, B.S.
    Low, S.C.
    Ismail, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/777927.pdf
    Data publikacji:
    2016
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    morphology
    PVDF membrane
    protein immobilization
    Opis:
    Understanding a membrane’s morphology is important for controlling its final performance during protein immobilization. Porous, symmetric membranes were prepared from a polyvinylidene fluoride/N-methyl-2-pyrrolidinone solution by phase inversion process, to obtain membrane with various microsized pores. The concentration and surface area of aprotein dotted on the membrane surface were measured by staining with Ponceau S dye. The dotted protein was further scanned and analysed to perform quantitative measurements for relative comparison. The intensity of the red protein spot and its surface area varied depending on the membrane pore size, demonstrating the dependence of protein immobilization on this factor. The membrane with the smallest pore size (M3) showed the highest protein spot intensity and surface area when examined at different protein concentrations. An increase in the applied protein volume showed a linearity proportional trend to the total surface area, and an uneven round dot shape was observed at a large applied volume of protein solution.
    Źródło:
    Polish Journal of Chemical Technology; 2016, 18, 2; 97-103
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Xerophiles and other fungi associated with cereal baby foods locally produced in Uganda
    Autorzy:
    Ismail, M.A.
    Taligoola, H.K.
    Nakamya, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/67513.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    fungi
    cereal product
    baby food zob.child food
    child food
    food product
    production
    Uganda
    xerophilic fungi
    mycobiota
    spoilage
    contamination
    Opis:
    Fifty samples from five baby food products mainly made of cereal flour(s) were analyzed. The moisture contents of these products were between 11.14% and 11.9%, a level below 14.0%, the recommended level for safe storage of cereal grains and their products. The mycological analysis was carried out using the dilution plate method and two isolation media (DG18 for isolation of xerophilic fungi and DRBC for fungi in general). A total of 80 species related to 37 genera in addition to some unidentified fungal and yeast species were recorded on both media from the five products. The products were contaminated abundantly by xerophilic fungi which were occurring in 88% of food samples and accounting for 18.1% of the total CFU as recorded on DG18. The highest contamination level by xerophiles was registered in Mwebaza rice porridge (a component of rice flour) and the lowest in Mukuza (a product of maize, soyabean and sorghum flours). 11 xerophilic species were recorded of which Aspergillus and Eurotium (4 species each) were the predominant giving rise to 9.1% and 8.9% of the total CFU, with A. wentii, A. candidus, E. cristatum and E. repens were the most contaminating species. Of the fungi recorded other than xerophiles, species of Aspergillus (particularly A. flavus followed by A. niger), Penicillium (P. citrinum, P. oxalicum), Fusarium (F. solani, F. tricinctum), Cladosporium (C. sphaerospermum) and yeasts were the most predominant. Contamination of such foods is a matter of health hazard as these foods are for babies. So, the use of fresh, well-dried and uncontaminated flours for production of such foods is recommended.
    Źródło:
    Acta Mycologica; 2012, 47, 1
    0001-625X
    2353-074X
    Pojawia się w:
    Acta Mycologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of annealing temperature on the optical properties of ZnO nanoparticles
    Autorzy:
    Ismail, R. A.
    Habubi, N. F.
    Abid, H. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/412203.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    nanoparticles
    ZnO film
    optical properties
    drop casting technique
    Opis:
    In this work, ZnO films were prepared by drop casting technique. The films were deposited on quartz substrates under different annealing time (15,30,45 and 60 min.) at a constant temperature (800 °C). The optical properties were achieved by measuring the absorbance and transmittance spectra in the wavelength range (200-900) nm. It was found that the absorbance decreases while transmission increases as the annealing time increases, while the reflectance decreases as the annealing time increases. The optical measurements indicate the kind of transition which was a direct allowed with an average band gap energies lie between 3.3 eV and 3.54 eV with the change of annealing time.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2014, 4; 37-47
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fabrication and characterization of porous silicon layer prepared by photo-electrochemical etching in CH3OH:HF solution
    Autorzy:
    Hadi, H.A.
    Ismail, R.A.
    Habubi, N.F.
    Powiązania:
    https://bibliotekanauki.pl/articles/412262.pdf
    Data publikacji:
    2013
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    porous silicon
    photo-electrochemical etching (PECE)
    porosity
    thickness
    XRD
    AFM
    Opis:
    Porous silicon (PS) has been fabricated by Photo-electrochemical etching. Porous silicon was anodized on n-type Si in light using a current density of 20mA/cm2 for 10 min. The porous structure formation was confirmed using XRD and AFM studies. The root mean square (RMS) roughness of the Porous silicon layer is found to be around 47.5 nm and the ten point height was 317 nm. The average of pores diameter was 419.98nm, and the grain growth is columnar with a (211) preferred orientation. The grain size of the PS was estimated from the Scherer's formula and found to be 73 nm. All the properties of the porous silicon layer, such as porosity and the thickness depend on the anodization parameters. The porosity (P) was approximately 77 %. The thickness of the layer formed during an anodization in constant current was 3.54nm in gravimetric method, while its value was 1.77nm by using the theoretical relation.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2013, 3; 29-36
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Relationships between certain metabolic diseases and selected serum biochemical parameters in seropositive dairy cows against Neospora caninum infection in different stages of lactation
    Autorzy:
    Alekish, Myassar O.
    Talafha, Abdelsalam Q.
    Alshehabat, Musa A.
    Bani Ismail, Zuhair A.
    Powiązania:
    https://bibliotekanauki.pl/articles/972115.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    Neospora caninum
    BHB
    liver enzymes
    ketosis
    dairy cows
    Opis:
    Neospora caninum is an important cause of abortion in dairy cattle. The general health of affected cows has not been investigated before. Therefore, the main objective of this study was to identify possible relationships between certain metabolic diseases and selected serum biochemical parameters in seropositive dairy cows against N. caninum antibodies in different stages of lactation. The study was carried out using 72 N. caninum seropositive cows and 61 seronegative dairy cows (control). Serum from all cows was tested to determine their N. caninum status (seropositive vs seronegative) using commercially available indirect enzyme-linked immunosorbent assay test kit (iELISA). In addition, serum biochemical parameters including beta-hydroxybutyrate (BHB), glucose, creatinine, blood urea nitrogen, total protein, albumin, alkaline phosphatase (ALP), aspartate aminotransferase (AST), alanine transaminase (ALT), lactate dehydrogenase (LDH) and gamma-glutamyltranspeptidase (GGT) were determined using routine laboratory methods. The stage of lactation was obtained at the time of sampling from farm records. Student independent t-test showed that there was a significant difference in the serum concentrations of BHB, AST, ALT, and LDH between seropositive and seronegative cows. There was no significant association between seropositivity and the stage of lactation. However, multivariable logistic regression analysis showed that there was a strong association between seropositivity and BHB concentrations. Results of this study indicate a possible relationship between N. caninum seropositivity and certain metabolic diseases such as ketosis and fatty liver syndrome in dairy cows.
    Źródło:
    Annals of Parasitology; 2017, 63, 2; 99-103
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fusaria and other fungi taxa associated with rhizosphere and rhizoplane of lentil and sesame at different growth stages
    Autorzy:
    Abdel-Hafez, S.I.I.
    Ismail, M.A.
    Hussein, N.A.
    Abdel-Hameed, N.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/67219.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Fusarium
    fungi
    rhizosphere
    rhizoplane
    lentil
    sesame
    growth stage
    Lens culinaris
    Sesamum indicum
    Opis:
    Density and diversity of Fusarium species and other fungi associated with rhizosphere and rhizoplane of lentil and sesame plants at three different growth stages were investigated. Sixteen species of Fusarium were isolated from rhizosphere (13 species) and rhizoplane (11) of both plants studied. In lentil, 11 species were recorded from its rhizosphere (9 species) and rhizoplane (8). Fusarium species associated with lentil rhizoplane gave highest number of propagules at the first stage of plant growth while the ones of Fusarium associated with the rhizosphere produced the highest number at the second stage of growth. F. solani was the most common in the three growth stages. In addition, of two growth stages, F. culmorum and F. tricinctum were isolated from the rhizosphere while F. nygamai and F. verticillioides from the rhizoplane. The other species were recorded from only one growth stage of lentil plant. In sesame plants, rhizosphere yielded nine Fusarium species while rhizoplane gave only six from the three stages investigated. Stage I of sesame rhizosphere possessed the highest colony forming units of Fusarium. As the case for lentil, F. solani was the most common species in sesame rhizospere and rhizoplane. F. verticillioides and F. nygamai (in three different growth stages) followed by F. oxysporum and F. tricinctum (in two growth stages) were recorded using the dilution-plate and/or soil-plate methods from sesame rhizosphere soils. Rhizoplane Fusarium species of sesame plants were isolated at the three different growth stages with almost equal number of colony forming units. F. poae came after F. solani in its frequency since it was recovered from two growth stages. Several of the isolated species are well-known as pathogens to many cultivated plants. To the best of our knowledge, three species are recorded here for the first time in Egypt from the rhizosphere (F. acutatum), rhizoplane of sesame plants (F. longipes) and from rhizosphere of both lentil and sesame and rhizoplane of lentil (F. nygamai).
    Źródło:
    Acta Mycologica; 2012, 47, 1
    0001-625X
    2353-074X
    Pojawia się w:
    Acta Mycologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of organophilization and interlamellar silylation of montmorillonite on compatiblization of polymer composites
    Autorzy:
    Rahim, M. A.
    Ismail, M.
    Kandi, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/102045.pdf
    Data publikacji:
    2016
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    nanocomposites
    montmorillonite
    organophilization
    polymer composites
    compatibilization
    Opis:
    Sodium montmorillonite (Na-Mt) was modified by cetyltriemethylammoniumbromide (CTAB) through cation exchange technique followed by grafting with 3-aminopropyltriethoxysilane (APT). The effects of organophillic surface treatments of montmorillonite on compatibilization of natural rubber (NR) /acrylonitrile butadiene rubber (NBR) blends was investigated. Physico-mechanical properties of rubber nanocomposites compatibilized with organomodified montmorillonite revealed strong nanocomposite with high tensile properties, impact strength and good resistance to flex fatigue, abrasion and compression set. Dynamic mechanical thermal analysis (DMTA) revealed a marked increase in storage modulus (E’) and lesser damping characteristics of organically modified clay mineral polymer nanocomposites (CPN) due to intercalation of organophilic montmorillonite by rubber matrix. The morphology of the blends became homogeneous and smoother with the presence of exofoliated/intercalated organically modified montmorillonite. Organomodified layered silicate sheets of montmorillonite greatly enhanced barrier properties by creating tortuous path that retarded the progress of solvent molecules through rubber matrix.
    Źródło:
    Advances in Science and Technology. Research Journal; 2016, 10, 32; 206-2016
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spatial and temporal variations of sedimentation rate in the Timah Tasoh Water Reservoir, Perlis, Malaysia
    Analiza przestrzenna i czasowa zmiennosci ilosci sedymentu w zbiorniku Timah Tasoh, Perlis w Malezji
    Autorzy:
    Rahaman, Z A
    Ismail, W.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/81815.pdf
    Data publikacji:
    2010
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    spatial analysis
    temporal analysis
    variation
    sedimentation rate
    sediment discharge
    Timah Tasoh Reservoir
    Perlis
    Malaysia
    Opis:
    Human activities such as logging, land conservation, road construction and other disturbances in watersheds will increase erosion rate and thus the amount of sediment transported into the river that reaches lakes, reservoirs and sea. Accelerated sedimentation rate in the reservoir can signifi cantly reduce a reservoir’s surface area, eliminating wetland area surrounding the reservoir and shallow the areas near the shore of the reservoir. A study of sedimentation rate in the Timah Tasoh water reservoir was carried out from May 2001 to April 2002 by means of sediment traps. The aim of this study is to determine the spatial and temporal pattern of sedimentation rates in the reservoir. The sediment traps were installed at five different locations in the reservoir and replaced every month. Gross sedimentation rates measured in the sediment traps vary from about an average of 1.4 kg/m2/month or 16.3 kg/m2/yr in the deepest part of the reservoir to about 79.2 kg/m2/yr (monthly average of 6.6 kg/m2/month) and 47.1 kg/m2/yr (monthly average of 3.9 kg/m2/month) near the inlet of the Pelarit River and the Tasoh River respectively. The sedimentation rate near the Pelarit River and the Tasoh River inflow is correlated with the water and suspended sediment discharge in the river, owing to its proximity to the rivers and the fl ooding effect, mainly during the wet season. The sedimentation rate decreases southward along the reservoir, as a result of increasing distance from the river mouth. The total suspended sediment load of the Upper Pelarit River and the Jarum River flowing into the reservoir is 11.4 × 103 ton/year and 5.41 × 103 ton/ /year respectively.
    Na podstawie szczegółowych łapaczkowych pomiarów terenowych przedstawiono zmiany przestrzenne i czasowe (2001–2002) ilości sedymentu w zbiorniku wodnym Timah Tasoh w Malezji. Łapaczki umieszczone w pięciu punktach zbiornika opróżniano co 5 miesięcy. Zmiany ilości sedymentu wykazano liczbowo na tle ilości dostarczanego rumowiska do zbiornika z rzek Pelarit oraz Jarum.
    Źródło:
    Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation; 2010, 42, 1; 127-138
    0208-5771
    Pojawia się w:
    Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fusion splicing: the penalty of increasing the collapse length of the air holes in ESM-12B photonic crystal fibers
    Autorzy:
    Adnan, S. A.
    Abdulwahhab, A. W.
    Ismail, S.N.
    Powiązania:
    https://bibliotekanauki.pl/articles/174083.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    photonic crystal fiber
    PCF
    collapse length
    mode field diameter
    MFD
    fusion splicing
    guiding mechanisms
    Opis:
    For optimum fusion splicing process of a photonic crystal fiber, the collapsing of the air holes at any photonic crystal fiber is the key point of either increasing or decreasing the total splice loss. In this paper, an experimental study has been carried out to investigate the relation between total splice loss or total fiber attenuation due to splice loss and the length of the collapsed region of the air holes. This is done by splicing ESM-12B photonic crystal fiber between two equal lengths of single mode fibers and measuring the attenuation at different arc times and arc powers. The results showed that the increase in the length of the collapsed air holes region results in higher loss, therefore, higher fiber attenuation.
    Źródło:
    Optica Applicata; 2016, 46, 2; 265-275
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Neural-sliding mode augmented robust controller for autolanding of fixed wing aircraft
    Autorzy:
    Ismail, I.
    Pashilkar, A. A.
    Ayyagari, R.
    Sundararajan, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/91533.pdf
    Data publikacji:
    2012
    Wydawca:
    Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
    Tematy:
    controller
    nonlinear dynamic inversion
    control signal
    phase compensator
    antiwindup scheme
    wing aircraft
    autolanding
    Opis:
    Neural and sliding mode controllers are generally based on the principle of nonlinear dynamic inversion. This leads to control signals containing high frequency components. This can result in actuator rate limiting due to loss of phase at higher frequencies. Large control inputs, for example due to the saturation component of the sliding mode controller can also result in position saturation of the actuator. In this paper we show that by the introduction of suitable phase compensators and an antiwindup scheme the neuralaided sliding mode controller performance can be improved. A novel scheme is proposed for the cascaded feedback controller which addresses practical requirements of both state limiting and control surface saturation respectively.
    Źródło:
    Journal of Artificial Intelligence and Soft Computing Research; 2012, 2, 4; 317-330
    2083-2567
    2449-6499
    Pojawia się w:
    Journal of Artificial Intelligence and Soft Computing Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ultrasonic-assisted synthesis of reactive carboxymethyl cellulose stabilized nano zero-valent iron and its application for removal of Cr6+ and Cu2+ ions
    Autorzy:
    Ayob, A.
    Santiagoo, R.
    Amneera, W. A.
    Ismail, N.
    Abdullah, A. Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/207403.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    high resolution transmission
    electron microscopy
    light scattering
    transmission electron microscopy X ray diffraction
    zero-valent iron
    wysoka rozdzielczość transmisyjna
    mikroskopia elektronowa
    dyfrakcja rentgenowska
    żelazo
    Opis:
    Carboxymethyl cellulose (CMC) was used in the chemical reduction using sodium borohydride to yield dispersive nano zero-valent iron (nZVI) particles as reactive and stable adsorbents. CMC- -stabilized nZVI particles were characterized via UV-visible light spectroscopy, X-ray diffraction, dynamic light scattering, transmission electron microscopy, and specific surface area assisted using a probe ultrasonication dispersing tool at 50% amplitude power. High catalytic reactivity obtained in pseudo-first order reaction for Cr6+ (rate constant K1 = 0.0311 min–1) and pseudo-second order for Cu2+ (rate constant K2 = 0.0946 g·mg–1·min–1) indicated that colloidal stability of nZVI particles can be achieved with a stabilizer for the removal of toxic contaminants.
    Źródło:
    Environment Protection Engineering; 2016, 42, 2; 55-79
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Green Driver: driving behaviors revisited on safety
    Autorzy:
    Muslim, N. H. B.
    Shafaghat, A.
    Keyvanfar, A.
    Ismail, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/223891.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    travel behavior
    safe driving
    reckless driving
    driving skills and practice
    green driver
    index assessment model
    zachowania w czasie jazdy
    bezpieczna jazda
    jazda lekkomyślna
    umiejętności i praktyka
    młody kierowca
    Opis:
    Interactions between road users, motor vehicles, and environment affect to driver’s travel behavior; however, frailer of proper interaction may lead to ever-increasing road crashes, injuries and fatalities. The current study has generated the green driver concept to evaluate the incorporation of green driver to negative outcomes reduction of road transportation. The study aimed to identify the green driver’s behaviors affecting safe traveling by engaging two research phases. Phase one was to identify the safe driving behaviors using Systematic literature review and Content Analysis methods. Phase one identified twenty-four (24) sub-factors under reckless driving behaviors cluster, and nineteen (19) sub-factors under safe driving practice cluster. Second phase was to establish the actual weight value of the sub-factors using Grounded Group Decision Making (GGDM) and Value Assignment (VA) methods, in order to determine the value impact of each sub-factor to green driving. Phase two resulted that sub-factors Exceeding speed limits (DB f2.2.) and Driver’s cognitive and motor skills (SD f1.2.2.) have received highest actual values, 0.64 and 0.49, respectively; ranked as the High contributor grade. Contrary, the sub-factors Age cognitive decline (DB f1.2.) and Competitive attitude (DB f1.2.), and Avoid gear snatching (SD f1.1.4.) have the lowest actual values; and ranked in low-contribution grade. The rest of the sub-factors have ranked in medium-contribution grade. The research also found out drivers’ personalities (included, physical and psychological characteristics) remains unaccountable and non-measureable yet in driver travel behavior assessment models. The study outputs would be used in development of Green Driver Index Assessment Model.
    Źródło:
    Archives of Transport; 2018, 47, 3; 49-78
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes of hematological and biochemical parameters and levels of pepsinogen, histamine and prostaglandins in dairy cows affected with left displacement of the abomasum
    Autorzy:
    Al-Rawashdeh, O.
    Bani Ismail, Z.
    Talafha, A.
    Al-Momani, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/30550.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Opis:
    The aims of this study were to determine the serum levels of pepsinogen, histamine, and prostaglandins F2α and E2 in lactating dairy cows affected with left displacement of the abomasum (LDA). In addition, the hematological and serum biochemical parameters were also determined in cows affected with LDA. A total of 52 adult lactating Holstein-Friesian cows affected with LDA and 30 normal cows (control) were used. In LDA cows, the average age, BCS and body weight were 4.9 ± 1.2 years, 2.5 ± 0.75, and 525 ± 150kg respectively. The average days-in-milk (DIM) in affected cows was 14 ± 6 with a range between 7 to 45 days. There were no significant differences in values of rectal temperature, heart rate and respiration rate between LDA cows and control. Rumen motility was significantly (p≤0.05) decreased in LDA cows. Cows affected with LDA had significantly (p≤0.05) increased glucose levels, and decreased levels of calcium and magnesium. There were significantly (p≤0.05) increased serum levels of pepsinogen and histamine in LDA cows while levels of prostaglandin E2 were significantly decreased in comparison to those in control cows. There were no significant changes in serum levels of prostaglandin F2α. In the hematology analyses, there were no significant changes in cows with LDA when compared to those in control cows. This study provides evidence of a possible role for pepsinogen, histamine and prostaglandin E2 in the etiopathophysiology of LDA in dairy cows.
    Źródło:
    Polish Journal of Veterinary Sciences; 2017, 20, 1
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Time Immersion of Thiourea on Structural and Optical Properties of CdS Deposited by SILAR
    Autorzy:
    Raid, A. Ismail
    Nadir, F. Habubi
    Kameran, Y. Qader
    Powiązania:
    https://bibliotekanauki.pl/articles/1178249.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    CdS
    Optical Properties
    SILAR
    Opis:
    Successive ionic layer adsorption and reaction (SILAR) technique was used to prepare (CdS) thin films on glass substrate, by changing the immersion time in thiourea solution. XRD patterns proved that the as deposited thin films were polycrystalline structure with an average crystallite size ranging from 14.1 nm to 5.6 nm depending on immersion time. The EDX confirm the existence of CdS. Scanning electron microscopy reveals that the deposited films have a nanorod structure.Atomic force microscopy has shown that the values of average roughness and the root mean square roughness increase upon increasing the immersion time. The transmittance spectra reveal that as the immersion time increase, the value of transmittance decrease.
    Źródło:
    World Scientific News; 2018, 91; 73-85
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Acaricidal, ovicidal, and repellent effects of Tagetes patula leaf extract against Tetranychus urticae Koch (Acari: Tetranychidae)
    Autorzy:
    Ismail, M.S.M.
    Tag, H.M.
    Rizk, M.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/65234.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Opis:
    This study investigates the acaricidal, ovicidal, and repellent effects of the Tagetes patula Linn. (Asteraceae) leaf extract against both the adult female and egg stages of Tetranychus urticae Koch (Trombidiformes: Tetranychidae) under laboratory conditions. The Tagetes patula ethanolic leaf extract [TpEtOH70%] was screened for adulticide and ovicide bioassays in order to consider its acute toxicity. One sublethal concentration was used to assess egg-laying capacity (fecundity), repellent, and oviposition deterrent activities. The chemical characterization was conducted by gas chromatography-mass spectrometry (GC-MS) analysis to identify the TpEtOH70% bioactive components. Results showed that the LC50 value of TpEtOH70% leaf extract predicted by Probit analysis against T. urticae adult females at 24 h was 0.99%.The TpEtOH70% leaf extract showed a significant toxic effect as the highest mean mortality rates (± SE) of the treated adult females was 88.9 ± 3.7%. However, the TpEtOH70% leaf extract was insignificant in affecting the egg-laying capacity of the adult females treated with a sublethal dose of 0.5% even after 72 h. The TpEtOH70% leaf extract was classified repellent since the repellent index (RI) value was lower than 1 – SD. In addition, it had a high oviposition deterring effect based on a 100% reduction of the total number of eggs. The TpEtOH70% leaf extract had a significant ovicidal effect on T. urticae eggs, with 56.04% reduction in hatching. Five bioactive compounds from various classes of phytochemicals were identified in the TpEtOH70% leaf extract and the major compound was phytol (62.72%). This pioneering investigation reveals the adulticidal, ovicidal, and repellent activities of the TpEtOH70% leaf extract against T. urticae. A combination of multiple modes of action of different plant components may act alone or in synergism to delay the development of mite resistance.
    Źródło:
    Journal of Plant Protection Research; 2019, 59, 2
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reclamation from palm oil mill effluent using an integrated zero discharge membrane-based process
    Autorzy:
    Ahmad, A. L.
    Idris, I.
    Chan, C. Y.
    Ismail, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/778766.pdf
    Data publikacji:
    2015
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    palm oil mill effluent (POME)
    membrane
    wastewater
    water recycling
    carotenes
    Opis:
    This research emphasizes eloquently on membrane technology for treatment of palm oil mill effluent (POME) as it is the Malaysia’s largest and most important agro based industry. Findings established significant quality improvement with an efficient recovery of water from palm oil mill via innovative membrane application. Conventional bio-methods, whilst adhering to the Department of Environment’s (DOE) discharge regulations, produces brownish liquid which pales in comparison to the crystal clear water obtained through membrane treatment. The pre-treatment process consists of coagulation-flocculation using green environmental coagulant bases such as Moringa oleifera (MO) seeds. The ultrafiltration polyvinylidene difluoride (PVDF) and thin film composite (TFC) reverse osmosis were vital for the membrane processes. The system gave 99% suspended solids reduction in suspended solid and 78% of water present was successfully recovered. This technology guarantees water recovery with drinking water quality; meeting the US Environmental Protection Agency (USEPA) standard or could be recycled into the plant with sludge utilization for palm oil estates, thus enabling the concept of zero discharge to be executed in the industries. In addition, green and healthy antioxidants such as oil and beta-carotene can be recovered from POME further demonstrate. Silica gel showed better performance in separation of carotenes from oil at temperature 40°C using adsorption chromatography with 1154.55 ppm. The attractiveness of this technology, enabling the utilization of reuse of agricultural waste into potentially value added products.
    Źródło:
    Polish Journal of Chemical Technology; 2015, 17, 4; 49-55
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thermodynamic assessment of thermochemical cycle for hydrogen production based on water decomposition with binary copper chlorine couple
    Autorzy:
    Benbrika, Omar
    Bensenouci, Ahmed
    Tegar, Mohamed
    Ismail, Kamal R.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2204067.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    hydrogen production
    thermochemical process
    copper-chlorine cycle
    water
    dissociate
    exergy
    energy
    analys
    Opis:
    The present study aims at investigating and simulating the hydrogen cycle production at low temperatures using thermochemical reactions. The cycle used in this work is based on the dissociation of water molecules depending on a copper chlorine couple. Furthermore, the proposed method uses mainly thermal energy provided by a solar thermal field. This proposed cycle differs from what is found in the literature. However, most of the thermochemical cycles for hydrogen production work at quite high temperatures which is a technical challenge. Therefore, the maximum temperature used in the present cycle is limited to 500◦C. A thermodynamic analysis based on both the first and second laws is performed to evaluate the energy, exergy and efficiency of each reaction as well as the overall exergetic efficiency of the system. Furthermore, a parametric study is conducted to figure out the impact of the surrounding temperatures on the overall exergetic efficiency using commercial energy simulation software. The results show that the cycle can achieve an exergy efficiency of 30.5%.
    Źródło:
    Archives of Thermodynamics; 2022, 43, 4; 109--133
    1231-0956
    2083-6023
    Pojawia się w:
    Archives of Thermodynamics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Genetic characterization and analysis of the population of selected Sarawak rice cultivars using simple sequence repeat markers
    Autorzy:
    Razak, S.A.
    Saidon, S.A.
    Yusof, M.F.M.
    Ismail, S.N.
    Powiązania:
    https://bibliotekanauki.pl/articles/79865.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    genetic characteristics
    population analysis
    genetic marker
    SSR marker
    rice cultivar
    Sarawak cultivar
    genetic similarity
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2018, 99, 3
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Molecular identification of blast resistance genes in rice genotypes using gene-specific markers
    Autorzy:
    Al-Daej, M.I.
    Ismail, M.
    Rezk, A.A.
    El-Malky, M.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/80189.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    molecular identification
    resistance gene
    rice genotype
    Oryza sativa
    DNA marker
    single-nucleotide polymorphism
    simple sequence repeat
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2019, 100, 3
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dinoflagellate cysts, palynofacies and organic geochemistry of the Cretaceous-Palaeogene (K–Pg) boundary transition at the Ellès section, northeastern Tunisia
    Autorzy:
    M’Hamdi, A.
    Slimani, H.
    Ismail-Lattrache, K. B.
    Ali, W. B.
    Powiązania:
    https://bibliotekanauki.pl/articles/191365.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    Cretaceous-Paleogene (K-Pg) boundary
    dinoflagellate cysts
    palynofacies
    organic matter
    EllÀs section
    Tunisia
    Opis:
    A palynofacies study carried out across the Cretaceous–Palaeogene (K–Pg) boundary in the El Haria Formation at Ellès, northeastern Tunisia, revealed the presence of organic matter dominated by marine palynomorphs, mainly dinoflagellate cyst assemblages. Continental palynomorphs (sporomorphs) and amorphous organic matter (AOM) are also present in all samples. The total organic carbon (TOC) content is generally less than 0.7 wt.%. The Rock-Eval S1 parameters vary from 0.01 to 0.3 mgHC/g rock. The Rock-Eval S2 parameters vary from 0.15 to 0.57 mgHC/g rock. The hydrogen index (HI) and oxygen index (OI) values range from 61 to 214 mgHC/g TOC and 149 to 638 mgHC/g TOC, respectively. The Tmax values range from 420 to 440°C. The TOC, Rock-Eval pyrolysis and palynofacies analyses indicate that the El Haria Formation is characterized by immature organic matter type II and III and a low thermal alteration index (TAI). Also, the authors present in this paper the biostratigraphic, palaeoenvironmentl and palaeobiogeographic framework for the dinoflagellate cyst assemblages below and above the Cretaceous–Palaeogene boundary in the Ellès section.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2014, 84, 3; 185-212
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Delphi technique for generating criteria and indicators in monitoring ecotourism sustainability in Northern forests of Iran: Case study on Dohezar and Sehezar Watersheds
    Autorzy:
    Barzekar, G.
    Aziz, A.
    Mariapan, M.
    Ismail, M.H.
    Hosseni, S.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/38399.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    Delphi method
    ecological indicator
    monitoring
    ecotourism
    sustainability
    forest
    Iran
    watershed
    Opis:
    Ecotourism is widely accepted as the most effective type of sustainable development. For monitoring ecotourism sustainability in the Northern forest of Iran, a study was designed to help identifying criteria and indicators (C&I) with the principle goal to ensure the objectives of forest management, and at the same time – maintain processes in a sustainable manner. Indicators act as an instrument which can be used for monitoring sustainability. Hence indicators should be multidisciplinary, and cover all aspect of social, ecological, cultural, economic and institutional factors affecting sustainability of ecotourism. In this study, C&I were identified by using the Delphi approach through multidisciplinary panel team. Three rounds of meetings were held for discussions and dissemination of research to a panel of local experts. At the end of the second round we reached a consensus on 9 criteria and 61 indicators, which include 21 indicators related to ecological aspects, 8 to economic aspects, 21 to social aspects, 6 to cultural aspects and 5 to institutional aspects. The selected indicators would be applied by the Iranian Cultural, Heritage, Handicrafts and Tourism Organization for monitoring ecotourism sustainability in the Northern forest of Iran.
    Źródło:
    Folia Forestalia Polonica. Series A . Forestry; 2011, 53, 2
    0071-6677
    Pojawia się w:
    Folia Forestalia Polonica. Series A . Forestry
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ground Penetrating Radar’s (GPR) Imaging and Applications to Pavement Structural Assessment: a Case of Malaysia
    Autorzy:
    Muslim, N. H.
    Mohamed, M. I.
    Amin, Z. M.
    Shafaghat, A.
    Ismail, M.
    Keyyanfar, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/224097.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    pavement
    assessment pavements
    geophysical tools
    ground penetrating radar
    GPR
    REFLEX 2D software
    nawierzchnia
    ocena nawierzchni
    narzędzia geofizyczne
    georadar
    oprogramowanie REFLEX 2D
    REFLEX 2D
    Opis:
    Traditionally, pavement distress evaluations were carried out by visual observation. Traditional practice requires a person to walk along the stretch of the pavement to conduct distress survey, take photo and measure defects occurred at deteriorated surfaces. However, this approach is too subjective, generates inconsistencies of information, less reliable and time-consuming. Due to these shortcomings, the transportation practitioners in pavement maintenance seek for other alternative tools and techniques to arrest incapability of traditional practices. One of the tools available in the market is Ground Penetrating Radar (GPR). GPR is a geophysical tool known by ability to accommodate extensive data in pavement assessment, geotechnical investigation and structural assessment. The application of GPR is such new to most of road maintenance industry in Malaysia. Therefore, this study has been undertaken to evaluate the benefits of using GPR imaging and its application in assessing pavement structures in Malaysia. The GPR survey was conducted in Meranti street located at UTM (Universiti Teknologi Malaysia) campus, and then analyzed using REFLEX 2D simulation software. The finding shows there are three (3) types of information obtained from GPR survey included; identification of raw image and processed image, identification of pavement segments thickness, and identification of GPR response towards surface and subsurface conditions, which illustrated in radargram images. Furthermore, the GPR can perform at high speed and can save time. It is also beneficial for long-term investment due to ability to provide extensive information at a greater depth. The research indicates that interpretation of GPR’s radargram images consumes time due to the low resolution. Therefore, selection of GPR system is subject to level of accuracy and clarity of radar images needed in a project.
    Źródło:
    Archives of Transport; 2017, 42, 2; 39-51
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Experimental Analysis of Podded Propulsor on Naval Vessel
    Autorzy:
    Abdul-Ghani, M.P.
    Yaakob, O.
    Ismail, N.
    Kader, A.S.A.
    Ahmad-Sabki, A. F.
    Singaraveloo, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/116528.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Naval Vessel
    Podded Propulsor
    Marine Technology Centre
    Opis:
    This paper describes the effect of pod propulsor attachment to the existing Naval Vessel hull form which was designed for conventional propulsor in aspects of resistance and motion characteristics. These investigations were carried out on a 3.0 m model by experimental works in the towing tank 120m x 4m x 2.5m at the Marine Technology Centre (MTC), Universiti Teknologi Malaysia (UTM). The basis ship chosen for this study is Sealift class type MPCSS (Multi Purpose Command Support Ship). In this study, the design for the new pod propulsor is based on a proven design and scaled down to suit this type of hullform accordingly. This paper describes the resistance comparison between bare and podded hulls in calm water as well in waves. The seakeeping test for hull with and without pod in regular waves at service speed of 16.8 knots were carried out at wavelength to model length ratio, Lw/Lm between 0.2 and 1.2. The outcomes from this experimental works on hull with and without pod were compared.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 1; 153-156
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Weak Localization and Electron-Electron Interaction in Si/SiGe Quantum Wells
    Autorzy:
    Prinz, A.
    Stőger, G.
    Brunthaler, G.
    Bauer, G.
    Ismail, K.
    Meyerson, B. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1933957.pdf
    Data publikacji:
    1995-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    73.20.Fz
    Opis:
    A negative magnetoresistance is observed in Si/SiGe modulation doped heterostructures which is attributed to the single particle quantum interference (weak localization) effect. From analysis of the experimental data the electron phase coherence time τ$\text{}_{ϕ}$ is extracted to follow a (aT + bT$\text{}^{2}$ )$\text{}^{-1}$ dependence. The evaluated prefactor α = 0.25 is below the theoretical limit of 0.5, but agrees with observations in Si and GaAs/AlGaAs heterostructures.
    Źródło:
    Acta Physica Polonica A; 1995, 88, 5; 873-876
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synthesis, characterization, thermal and fire retardant properties of new homo- and block copolymers of polyacrylate and epoxy resin with cyclotriphosphazene core
    Synteza, charakterystyka, właściwości termiczne i ognioodporne nowych homokopolimerów i kopolimerów blokowych poliakrylanu i żywicy epoksydowej z rdzeniem cyklotrifosfazenowym
    Autorzy:
    Shaban, Alaa
    Al-Shukri, Salah Mahdi
    Kahlaf, Hussein Ismail
    Al Hanbali, Othman A.
    Powiązania:
    https://bibliotekanauki.pl/articles/945822.pdf
    Data publikacji:
    2019
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
    Tematy:
    synthesis
    cyclotriphosphazene
    epoxy resin
    polyacrylate
    thermal stability
    flame retardant
    synteza
    cyklotrifosfazen
    żywica epoksydowa
    poliakrylan
    stabilność termiczna
    środek zmniejszający palność
    Opis:
    New homo- and block copolymers composed of polyacrylate and epoxy resin with hexafunctional cyclotriphosphazene core were synthesized and characterized by FT-IR and 1H-, 13C-, and 31P- NMR. The first homopolymer, PN-polyacry was prepared from the direct condensation of 2-hydroxyethylacrylate with acyl chloride of hexakis(4-carboxyphenoxy)cyclotriphosphazene, PN-acyl. The second homopolymer, PN-Ep, was prepared in a direct reaction of catalyzed carboxyl groups of hexakis(4-carboxyphenoxy)cyclotriphosphazene PN-COOH with epoxy resin via an oxirane ring opening reaction. The block copolymer, PN-Ep/polyacry, was prepared from the partial coupling of 2-hydroxyethyl acrylate with the PN-acyl, followed by the reaction of unreacted carboxyl groups with epoxy resin. Differential scanning calorimetry (DSC) analysis of the PN-Ep/polyacry copolymer exhibited good compatibility between polyacrylate and cured epoxy resin. Thermal gravimetric analysis (TGA) revealed that the prepared polymeric systems accumulate 30–38 wt % char at elevated temperatures, compared to neat polyacrylate and cured epoxy resin, which accumulate negligible char at 700 °C. The limiting oxygen index (LOI) exhibited significant enhancement of fire retardant properties of the prepared polymeric systems. A scanning electron microscopy (SEM) morphology study revealed that PN-polyacry and PN-Ep/polyacrylate produced intumescent char residues while PN-Ep produced solid dense char with a nonporous surface.
    Zsyntetyzowano nowe homopolimery i kopolimery blokowe złożone z poliakrylanu i żywicy epoksydowej z sześciofunkcyjnym rdzeniem cyklotrifosfazenu. Struktury scharakteryzowano metodami FT-IR i 1H-, 13C- oraz 31P-NMR. Pierwszy homopolimer, poliakrylan (PN), wytworzono w bezpośredniej kondensacji akrylanu 2-hydroksyetylu z chlorkiem acylu heksakis(4-karboksyfenoksy)cyklotrifosfazenu (PN-acyl). Drugi homopolimer (PN-Ep) wytworzono w katalizowanej bezpośredniej reakcji grup karboksylowych heksakis(4-karboksyfenoksy) cyklotrifosfazenu (PN-COOH) z żywicą epoksydową w wyniku otwarcia pierścienia oksiranowego. Kopolimer blokowy (PN-Ep/poliakry) otrzymano w procesie częściowego sprzęgania akrylanu 2-hydroksyetylu z PN-acylem i następnej reakcji nieprzereagowanych grup karboksylowych z żywicą epoksydową. Analiza kopolimeru PN-Ep/poliakry za pomocą różnicowego kalorymetru skaningowego (DSC) wykazała dobrą kompatybilność między poliakrylanem i utwardzoną żywicą epoksydową, a na podstawie analizy termograwimetrycznej (TGA) stwierdzono, że przygotowane układy polimerowe spalają się w podwyższonej temperaturze do karbonizatu (30—38% mas.), podczas gdy czysty poliakrylan i utwardzona żywica epoksydowa w 700 °C wytwarzają jego pomijalne ilości. Wartość granicznego wskaźnika tlenowego (LOI) wskazywała na znaczące zwiększenie ognioodporności przygotowanych układów polimerowych. Badanie morfologii przy użyciu skaningowego mikroskopu elektronowego (SEM) wykazało, że w wyniku spalania poliakrylanu PN i PN-Ep/poliakrylanu wytwarza się pozostałość pęczniejących karbonizatów, podczas gdy w procesie spalania PN-Ep wytwarzał się zwarty gęsty osad o nieporowatej powierzchni.
    Źródło:
    Polimery; 2019, 64, 9; 577-590
    0032-2725
    Pojawia się w:
    Polimery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    In vitro micropropagation of Acacia auriculiformis from selected juvenile sources
    Autorzy:
    Ismail, H.
    Kumar, S.M.
    Aziah, M.Y.
    Hasnida, N.H.
    Nor Aini, A.S.
    Powiązania:
    https://bibliotekanauki.pl/articles/41196.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    in vitro
    micropropagation
    Acacia auriculiformis
    juvenile source
    Opis:
    The effects of 6- Benzylaminopurine (BA), different basal medium, sucrose concentration and gelling agent were investigated for shoot induction and multiplication of Acacia auriculiformis. Nodal explants derived from 5-month-old seedlings yielded the highest shoot multiplication rate in Murashige and Skoog medium (MS) with 0.44 μM BA, 30 g/L sucrose and 2 g/L Gelrite. The highest mean number of shoots (10) and mean length of shoots (5.07mm) were also obtained in this medium. Qualitative observation of the shoots cultured in 0.44 μM BA were greener and vigorous in growth as compared to shoots cultured on higher concentrations of BA (22.2 μM). MS medium produced a significantly higher number of shoots (18) compared to Woody Plant Medium (WPM) (11) and B5 medium (10). Media solidified with different gelling agents also produced a significantly different number of shoots with 2 g/L Gelrite produced the highest number of shoots (23). The highest percentage of shoots rooted was found in the MS medium without any growth regulators (40.0%) followed by medium supplemented with Indole-3-butyric acid (IBA) at 9.84 μM and the combination of 9.84 μM IBA with 5.37 μM α-naphthalene acetic acid (NAA) (33.3%). MS medium without any plant growth regulators produced the highest mean root length (84.33mm), whereas medium supplemented with 9.84 μM IBA produced the highest mean number of roots per shoot (4.33). Out planting of in vitro rooted shoots in shredded coconut husk as the substrate gave the highest percentage of survival (90%) during acclimatization in the greenhouse.
    Źródło:
    Dendrobiology; 2016, 75
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Groundwater quality and hydrogeological characteristics of Malacca state in Malaysia
    Jakość wód gruntowych i charakterystyka hydrogeologiczna stanu Malakka w Malezji
    Autorzy:
    Shirazi, S. M.
    Adham, M. I.
    Zardari, N. H.
    Ismail, Z.
    Imran, H. M.
    Mangrio, M. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/947218.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    aquifer productivity
    groundwater
    Malacca catchment
    pumping test
    water quality
    jakość wody
    pompowanie badawcze
    woda gruntowa
    wydajność warstwy wodonośnej
    zlewnia Malakka
    Opis:
    Groundwater quality and aquifer productivity of Malacca catchment in Peninsular Malaysia are presented in this article. Pumping test data were collected from 210 shallow and 17 deep boreholes to get well inventory information. Data analysis confirmed that the aquifers consisting of schist, sand, limestone and volcanic rocks were the most productive aquifers for groundwater in Malacca state. GIS-based aquifer productivity map was generated based on bedrock and discharge capacity of the aquifers. Aquifer productivity map is classified into three classes, namely high, moderate and low based on discharge capacity. Groundwater potential of the study area is 35, 57 and 8% of low, moderate and high class respectively. Fifty two shallow and 14 deep aquifer groundwater samples were analyzed for water quality. In some cases, groundwater quality analysis indicated that the turbidity, total dissolved solids, iron, chloride and cadmium concentrations exceeded the limit of drinking water quality standards.
    W artykule przedstawiono jakość wód gruntowych i wydajność warstwy wodonośnej w zlewni Malakka na Półwyspie Malajskim. Do badań zastosowano metodę pompowania badawczego z 210 płytkich i 17 głębokich odwiertów. Najbardziej wydajne okazały się poziomy wodonośne usytuowane w łupkach, piaskowcach, wapieniach i skale wulkanicznej. Na podstawie danych o podłożu i wydajności sporządzono mapę wydajności warstw wodonośnych. Wyróżniono trzy klasy wydajności warstw wodonośnych: wysoka (8%) badanego obszaru, umiarkowana (57%) i niska (35%). Analizom poddano 52 próbki z płytkich warstw i 14 próbek z głębokich warstw. W niektórych przypadkach stężenie zawiesiny, suchej masy, żelaza, chlorków i kadmu przekraczało dopuszczalne wartości dla wody pitnej.
    Źródło:
    Journal of Water and Land Development; 2015, 24; 11-19
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-34 z 34

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