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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
Wyświetlanie 1-25 z 34

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