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Tytuł:
The relations between the rainfall erosivity index AI and the hydraulics of overland flow and sediment concentration in sandy soils
Autorzy:
Aziz, M.
Liatim, M.
Powiązania:
https://bibliotekanauki.pl/articles/905362.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Opis:
The purpose of this study is to investigate the effects of rainfall erosivity index AI on the hydraulics of overland flow parameters such as the flow velocity, the flow depth, the flow regime, overland flow power and on soil surface characteristics, such as surface roughness and sediment concentration. The erosivity index AI represents six rainfall intensities, 31.40 mm·h⁻¹; 37.82 mm·h⁻¹; 69.49 mm·h⁻¹; 81.85 mm·h⁻¹; 90.39 mm·h⁻¹ and 101.94 mm·h⁻¹ generated by a rainfall simulator. To simulate the soil plot, a soil tray was filled with remolded agricultural sandy soil. The results found have shown that the AI represents better the rainfall than rainfall intensity and related to drop diameter with a power function. Overland flow never exceeded the laminar and subcritical regime; the Reynolds number reacted differently with AI and rainfall intensity, whereas the Froude number has similar reaction with both parameters. Re, Fr and n follow with AI logarithmic, linear and power functions respectively. Finally, AI is a good predictor of soil erosion.
Źródło:
Polish Journal of Soil Science; 2018, 51, 1
0079-2985
Pojawia się w:
Polish Journal of Soil Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Criticality calculations for the spent fuel storage pools for Etrr_1 and Etrr_2 reactors
Autorzy:
Aziz, M.
Andrzejewski, K.
Powiązania:
https://bibliotekanauki.pl/articles/146151.pdf
Data publikacji:
2000
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
criticality safety
research reactors
Opis:
A criticality analysis of two spent fuel storage pools for Etrr_1 and Etrr_2 research reactors was performed. The multiplication factor for the pools was calculated as a function of relevant lattice physics parameters. Monte Carlo code MCNP-4A code was used in the criticality calculations. The results were compared with those given by CITATION code and the results obtained formerly during the design phase of the pools [9] with the MONK 6.3 code. Safety of the pools was confirmed.
Źródło:
Nukleonika; 2000, 45, 2; 141-144
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetic Properties of Zinc Doped Ferrites
Autorzy:
Abd El-Ati, M. I.
Kafafy, Aziz M.
Tawfik, A.
Powiązania:
https://bibliotekanauki.pl/articles/1887816.pdf
Data publikacji:
1991-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.50.Gg
75.50.Dd
Opis:
A series of samples of the system Co$\text{}_{1-x}$Zn$\text{}_{x}$Fe$\text{}_{2}$O$\text{}_{4}$ (x = 0.0, 0.3, 0.4, 0.5 and 0.8) have been prepared by the usual ceramic technique. X-ray analysis shows that they are cubic spinel (single phase). The lattice parameter a and the bulk density D are measured for the samples. The substitution experiments replacing Co$\text{}^{2+}$ by Zn$\text{}^{2+}$ furnish new significant fact concerning the magnetic behaviour of ferrites. The magnetic strength of the magnetic ions on the Band A-sites can be varried relative to each other by the substitution of Zn$\text{}^{2+}$. The increase of density of the composition increases the magnetic interaction of the dipole moment at the B-sites.
Źródło:
Acta Physica Polonica A; 1991, 79, 6; 889-894
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Removal of Fe++ from Wastewater Using Sludge-polymer Hybrid Adsorbents
Usuwanie Fe++ ze ścieków przy użyciu hybrydowych adsorbentów osadowo-polimerowych
Autorzy:
Abdel-Aziz, M. H.
Gutub, S.
Soliman, M. F.
Bassyouni, M.
Powiązania:
https://bibliotekanauki.pl/articles/1815483.pdf
Data publikacji:
2016
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
heavy metals
sewage sludge
polymers
hybrid adsorbents
adsorption isotherm
metale ciężkie
osady ściekowe
polimery
hybrydowe adsorbenty
izoterma adsorpcji
Opis:
Removal of Fe++ by adsorption on sludge-polymer hybrid adsorbents was studied. Sludge was collected from domestic disposal wastewater. Thermal treatment of sludge particles was carriedout at 200, 400 and 600°C to improve adsorption capacity. Polyvinylidene fluoride (PVDF) commercial polymer was mixed with the sludge in different mass ratios. Surface morphology and chemical structure of treated sludge were investigated using SEM and FTIR. Parameters studied are initial concentration of Fe++, contact time, sludge dose, heat treatment of the sludge, and sludge/polymer mixing ratio. Within the present range of studied parameters the removal efficiency of Fe++increases with in-creasing sludge dose. Increasing initial concentration of Fe++from 50 to 100 ppm increases the removal efficiency by a factor of maximum of 1.73. Fur-ther increasing in concentration from 100 to 150 ppm leads to decrease in removal efficiency up to 43%. Sludge-PVDF hybrid adsorbent improved removal efficiency up to 63.6%. Experimental data fits to Freundlich linear model. The mechanism of adsorption of Fe++ by sludge adsorbent was found to take place through a monolayer and heterogeneous surface. Potential applications of the present data in removing heavy metals from industrial waste solutions were highlighted.
W pracy badano usuwanie Fe++ za pomocą adsorpcji na osadowo-polimerowych adsorbentach hybrydowych. Osady pobrano z oczyszczalni ścieków komunalnych. Obróbkę termiczną osadu prowadzono w temperaturze 200, 400 i 600°C, w celu poprawy zdolności adsorpcyjnych. Fluorek poliwinylidenu (PVDF) – handlowy polimer – mieszano z osadami w różnych stosunkach masowych. Morfologia powierzchni i struktura chemiczna przetworzonego osadu była badana za pomocą SEM i FTIR. Badane parametry niezależne to: początkowe stężenie Fe++, czas kontaktu, dawka osadu, obróbka termiczna osadu, udział osadu/polimeru w mieszance. W badanych zakresach zmienności parametrów niezależnych, efektywność usuwania Fe++ wzrasta wraz ze wzrostem dawki osadu. Zwiększenie początkowego stężenia Fe++ z 50 do 100 ppm zwiększa skuteczność usuwania o współczynnik wynoszący maksymalnie 1,73. Dalsze zwiększanie stężenia od 100 do 150 ppm, prowadzi do zmniejszenia skuteczności usuwania do 43%. Hybrydowy adsorbent poprawił skuteczność usuwania aż do 63,6%. Dane doświadczalne odpowiadają liniowej izotermie Freundlicha. Adsorpcja Fe++ przez adsorbent osadowy zachodzi poprzez monowarstwę i heterogeniczną powierzchnię. Podkreślono możliwość zastosowania uzyskanych wyników do usuwaniu metali ciężkich ze ścieków przemysłowych.
Źródło:
Rocznik Ochrona Środowiska; 2016, Tom 18, cz. 1; 28-45
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Removal of Fe++ from Wastewater Using Sludge-polymer Hybrid Adsorbents
Usuwanie Fe++ ze ścieków przy użyciu hybrydowych adsorbentów osadowo-polimerowych
Autorzy:
Abdel-Aziz, M. H.
Gutub, S.
Soliman, M. F.
Bassyouni, M.
Powiązania:
https://bibliotekanauki.pl/articles/1815484.pdf
Data publikacji:
2016
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
heavy metals
sewage sludge
polymers
hybrid adsorbents
adsorption isotherm
metale ciężkie
osady ściekowe
polimery
hybrydowe adsorbenty
izoterma adsorpcji
Opis:
Removal of Fe++ by adsorption on sludge-polymer hybrid adsorbents was studied. Sludge was collected from domestic disposal wastewater. Thermal treatment of sludge particles was carriedout at 200, 400 and 600°C to improve adsorption capacity. Polyvinylidene fluoride (PVDF) commercial polymer was mixed with the sludge in different mass ratios. Surface morphology and chemical structure of treated sludge were investigated using SEM and FTIR. Parameters studied are initial concentration of Fe++, contact time, sludge dose, heat treatment of the sludge, and sludge/polymer mixing ratio. Within the present range of studied parameters the removal efficiency of Fe++increases with in-creasing sludge dose. Increasing initial concentration of Fe++from 50 to 100 ppm increases the removal efficiency by a factor of maximum of 1.73. Fur-ther increasing in concentration from 100 to 150 ppm leads to decrease in removal efficiency up to 43%. Sludge-PVDF hybrid adsorbent improved removal efficiency up to 63.6%. Experimental data fits to Freundlich linear model. The mechanism of adsorption of Fe++ by sludge adsorbent was found to take place through a monolayer and heterogeneous surface. Potential applications of the present data in removing heavy metals from industrial waste solutions were highlighted.
W pracy badano usuwanie Fe++ za pomocą adsorpcji na osadowo-polimerowych adsorbentach hybrydowych. Osady pobrano z oczyszczalni ścieków komunalnych. Obróbkę termiczną osadu prowadzono w temperaturze 200, 400 i 600°C, w celu poprawy zdolności adsorpcyjnych. Fluorek poliwinylidenu (PVDF) – handlowy polimer – mieszano z osadami w różnych stosunkach masowych. Morfologia powierzchni i struktura chemiczna przetworzonego osadu była badana za pomocą SEM i FTIR. Badane parametry niezależne to: początkowe stężenie Fe++, czas kontaktu, dawka osadu, obróbka termiczna osadu, udział osadu/polimeru w mieszance. W badanych zakresach zmienności parametrów niezależnych, efektywność usuwania Fe++ wzrasta wraz ze wzrostem dawki osadu. Zwiększenie początkowego stężenia Fe++ z 50 do 100 ppm zwiększa skuteczność usuwania o współczynnik wynoszący maksymalnie 1,73. Dalsze zwiększanie stężenia od 100 do 150 ppm, prowadzi do zmniejszenia skuteczności usuwania do 43%. Hybrydowy adsorbent poprawił skuteczność usuwania aż do 63,6%. Dane doświadczalne odpowiadają liniowej izotermie Freundlicha. Adsorpcja Fe++ przez adsorbent osadowy zachodzi poprzez monowarstwę i heterogeniczną powierzchnię. Podkreślono możliwość zastosowania uzyskanych wyników do usuwaniu metali ciężkich ze ścieków przemysłowych.
Źródło:
Rocznik Ochrona Środowiska; 2016, Tom 18, cz. 1; 28-45
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electrical and Dielectric Properties of Amorphous Ge$\text{}_{1}$Se$\text{}_{1.35}$TL$\text{}_{0.1}$ Films
Autorzy:
Abdel-Aziz, M. M.
Afifi, M. A.
Labib, H. H.
El-Metwally, E. G.
Powiązania:
https://bibliotekanauki.pl/articles/2014346.pdf
Data publikacji:
2000-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
72.80.Ng
72.20.-i
Opis:
The temperature dependence of the DC and AC electrical conductivity were measured for Ge$\text{}_{1}$Se$\text{}_{1.35}$Tl$\text{}_{0.1}$ films. The value of DC electrical conduction energy ΔE$\text{}_{σ}$ does not depend on film thickness in the investigated range with mean value of 0.72eV. The AC conductivity σ$\text{}_{AC}$ is related to frequency by the expression σ$\text{}_{AC}$=Aω$\text{}^{S}$, where S is the frequency exponent which decreases linearly with increasing temperature. This can be explained in terms of the pair (bipolaron) correlated barrier hopping model suggested by Elliott. The frequency and temperature dependence of real and imaginary parts of the dielectric constant were studied for Ge$\text{}_{1}$Se$\text{}_{1.35}$Tl$\text{}_{0.1}$ films. The dielectric constant (real part) and the dielectric loss (imaginary part) increase with increasing temperature and decrease with increasing frequency in the investigated range of frequency and temperature. The maximum barrier height W$\text{}_{M}$ can be calculated according to the Giuntini equation at different temperatures. The obtained value of W$\text{}_{M}$ is in good agreement with the theory of hopping of charge carriers over a potential barrier as suggested by Elliott in case of chalcogenide glasses.
Źródło:
Acta Physica Polonica A; 2000, 98, 4; 393-399
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Municipal solid waste generation, composition and management: Issues and challenges. A case study
Autorzy:
Ahsan, A.
Alamgir, M.
Imteaz, M.
Shams, S.
Rowshon, M. K.
Aziz, M. G.
Idrus, S.
Powiązania:
https://bibliotekanauki.pl/articles/208304.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
municipal solid waste
solid wastes
waste management
medical waste management
stałe odpady komunalne
odpady stałe
gospodarowanie odpadami
zagospodarowanie odpadów medycznych
Opis:
Khulna is the third largest metropolitan city in Bangladesh and a centre with intensive commercial and industrial activities. Rapid urbanization and increased migration of people from rural and coastal areas has put tremendous pressure on its existing solid waste management. The status of the existing municipal solid waste (MSW) management tiers such as generation, source storage, collection, on-site storage, transportation, and open dumping has been identified in this study. The daily generation of MSW is estimated as 520 Mg, of which food and vegetable wastes are the main components (79% on average). The major source of generated MSW is residential areas, which is 85.87% of total generation, whereas 11.60% in commercial areas, 1.02% in institutional areas, 0.55% in street sweeps and 0.96% in other areas. About 50% of total generated waste is disposed daily to the dumping site and the rest remains uncollected and unmanaged. Non-governmental organizations and community based organizations play an important role in primary collection, composting of organic wastes and medical waste management.
Źródło:
Environment Protection Engineering; 2015, 41, 3; 43-59
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of smart sorting machine using artificial intelligence for chili fertigation industries
Autorzy:
Abdul Aziz, M. F.
Bukhari, W. M.
Sukhaimie, M. N.
Izzuddin, T.A.
Norasikin, M.A.
Rasid, A. F. A.
Bazilah, N. F.
Powiązania:
https://bibliotekanauki.pl/articles/2141810.pdf
Data publikacji:
2021
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
precision agriculture
artificial neural network
smart fertigation
Opis:
This paper presents an automation process is a need in the agricultural industry specifically chili crops, that implemented image processing techniques and classification of chili crops usually based on their color, shape, and texture. The goal of this study was to develop a portable sorting machine that will be able to segregate chili based on their color by using Artificial Neural Network (ANN) and to analyze the performance by using the Plot Confusion method. A sample of ten green chili images and ten red chili images was trained by using Learning Algorithm in MATLAB program that included a feature extraction process and tested by comparing the performance with a larger dataset, which are 40 samples of chili images. The trained network from 20 samples produced an overall accuracy of 80 percent and above, while the trained network from 40 samples produced an overall accuracy of 85 percent. These results indicate the importance of further study as the design of the smart sorting machine was general enough to be used in the agricultural industry that requires a high volume of chili crops and with other differentiating features to be processed at the same time. Improvements can be made to the sorting system but will come at a higher price.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2021, 15, 4; 44-52
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of high fat diet on structure of liver and gallbladder of adult male mice – an experimental study
Autorzy:
Hegazy, Abdelmonem Awad
Qenawy, Noura M.
Aziz, Nada M. Abdel
El-Bestawy, Emtethal M.
Powiązania:
https://bibliotekanauki.pl/articles/2040247.pdf
Data publikacji:
2021-12-30
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
COX-2
fatty liver
gallbladder epithelium
immunoexpression
Oil Red O staining
Opis:
Introduction. High fat diet (HFD) intake induces obesity and adversely affects different body organs including liver and gallbladder. Aim. It was to clarify the effects of HFD on the liver and gallbladder structure using light microscopic (LM) examination. Material and methods. 16 healthy adult male mice were equally divided into 2 groups. Control group mice were fed normal diet. HFD group was fed using HFD. At the end of the 8-week experiment, mice were anesthetized. Liver and gallbladder were removed and prepared to histological processing. Sections were stained with hematoxylin and eosin (H&E) and immunostaining for cyclooxygenase-2 (COX-2) cellular localization. Oil Red O (ORO)-stained frozen liver sections were prepared. Results. H&E-stained sections of HFD group revealed rounded swollen hepatic cells with pale cytoplasm suggesting cellular ballooning. Dilated congested sinusoids and portal vein, cellular degeneration and collection of inflammatory cells were observed between hepatic cells and in portal region. Gallbladder sections showed epithelial stratification and cellular vacuolation. Strong immunoexpression of COX-2 was observed in Kupffer and hepatic cells of the liver and gallbladder mucosal epithelial cells. Conclusion. HFD is suggested to alter the normal histological features of liver and gallbladder represented by fatty liver and gallbladder epithelial hyperplasia and inflammatory reaction.
Źródło:
European Journal of Clinical and Experimental Medicine; 2021, 4; 291-298
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Landscape change and human environment
Autorzy:
Aziz, A.
Anwar, M.M.
Powiązania:
https://bibliotekanauki.pl/articles/2049757.pdf
Data publikacji:
2019
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
landscape change
human environment
human activity
landscape management
Human ecology
human activities
environment
landscape
Landscape Changes
Opis:
Landscape and human are the constituents of the natural surroundings in which changing occurred temporally and spatially. The relationship between landscape and environment is not seen by a singular framework or a bare structure. A landscape has different functions and characteristics, when meet specific requirements, then set an ecology in giving context. Every landscape has its own scenario based upon the dimension of human and its kinship with them. Man are the ecosystem managers, the landscape features provide a road map and built human ecology. Development is occurring by landscape change, change of environment and the kinship between human and landscape, study of these phenomena provide us a theoretical framework to assess the man land relationship as is done in this case study. This paper aims to describe how, each individual in a particular environment is participating in change of the landscape. The influence of human is a magnitude of actions upon the landscape and this magnitude shape the local landscape. The paper discussed through a brightness on the dynamics of landscape change in the 21st century due to globalization and modern dimensions and presents us a complex web of human with non-human relationship of ecology, economy and history, which alter the landscape. This paper concluded a reflection of cultural values on physical environment and landscape change to build environment and human ecology.
Źródło:
Environment, Earth and Ecology; 2019, 3, 1; 7-12
2543-9774
2451-4225
Pojawia się w:
Environment, Earth and Ecology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of Text-messaging on the Academic Writing of Arab EFL Students
Autorzy:
Al-Salman, Saleh M.
Saeed, Aziz T.
Powiązania:
https://bibliotekanauki.pl/articles/620966.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
academic writing
impact
reactions
text-messaging
Opis:
This paper investigates the effect of text-messaging on Arab EFL learners’ English academic writing. It also investigates teachers’ attitudes and reactions to the presence of e-texting features in their students’ writing. Qualitative and quantitative methods of analysis were employed on data obtained from the following sources: (1) a sample of freshman students’ writing, (2) a survey investigating students’ use of e-chatting in Arabic and English, and (3) a questionnaire eliciting teachers’ reactions to students’ use of texting features in academic writing. The data were collected from a student sample of the Arab Open University (AOU). The research findings show that Arab EFL students’ writing does not reveal a heavy use of texting features, which suggests that this phenomenon neither poses a serious threat nor adversely impacts students’ written English.
Źródło:
Research in Language; 2017, 15, 3; 237-252
1731-7533
Pojawia się w:
Research in Language
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Formation of Uniform Germanium Islands on Silicon Substrate Using Nickel as Catalyst by Thermal Evaporation Method
Autorzy:
Jumidali, M.
Hashim, M.
Abdul Aziz, A.
Abd Rahim, A.
Powiązania:
https://bibliotekanauki.pl/articles/1193093.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Ea
81.10.Bk
81.15.-z
Opis:
Uniform germanium islands (GIs) were grown on Si (100) using a nickel layer as catalyst through the physical vapor deposition of germanium (Ge) powder at 1000°C at different deposition times. Prior to the deposition of Ge layer, nickel (Ni) catalyst was deposited on silicon substrates via radio frequency magnetron sputtering technique. Scanning electron microscopy results showed that the increase in deposition time resulted in a variation in surface morphology. Energy dispersive X-ray spectrometer analysis found that the GI samples composed of Ni element indicating the role of Ni in uniform Ge islands formation. The X-ray diffraction pattern spectra revealed that the GIs exhibited a Ge cubic structure and the intensity of Ge peaks varies with deposition time. In-plane strain indicated that the strain caused by the substrate is tensile and changed to compressive strain at the longer deposition time. The Raman spectra exhibited a red shift in the Ge-Ge peak, compared with the bulk Ge, as a result of compressive strain of the GIs. Fourier transform infrared spectrum analysis also indicated that the optical band gap Eg values of GIs can be varied by deposition time.
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 1068-1071
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electroluminescence Enhancement of Polymer Light Emitting Diodes Through Surface Plasmons by Ag Nanoplates
Autorzy:
Aziz, T.
Salleh, M.
Bakar, N.
Umar, A.
Rahman, M.
Powiązania:
https://bibliotekanauki.pl/articles/1186484.pdf
Data publikacji:
2016-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
73.20.Mf
Opis:
This paper reports a study on the surface plasmon effect of Ag nanoplates on electroluminescent property of polymer light emitting diodes. The diode is a single layer light emitting device made of poly [9,9-di-(2-ethylhexyl)-fluorenyl-2,7-diyl] (PEHF). 5 wt.% of Ag nanoplates were incorporated into the PEHF layer. The results showed that the electroluminescence intensity of the diodes is increased by 51.85%, compared with the device without the Ag nanoplates. The enhancement is due to the coupling process between the Ag surface plasmon with the emission light from the PEHF. The occurrence of the coupling process was proved firstly based on the fact that the exciton lifetime of the PEHF:Ag layer is shorter than that without Ag, as measured by time-resolved photoluminescence spectroscopy. Secondly, the PEHF photoluminescence peak at 425 nm is overlaping with the surface plasmon absorption peak of Ag nanoplates.
Źródło:
Acta Physica Polonica A; 2016, 129, 4; 711-713
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Indication of urban expansion of Gujranwala city (Pakistan) by remote sensing and GIS
Autorzy:
Aziz, A.
Anwar, M.M.
Rani, M.
Ahmad, S.
Zaheer, S.
Powiązania:
https://bibliotekanauki.pl/articles/2049753.pdf
Data publikacji:
2019
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
remote sensing
industrial revolution
Earth surface system
human influence
ecological process
human activity
temporal variation
GIS
urban sprawl
ecology
time
Opis:
Land-cover by land-use shows the influence of human on earth surface by different phenomena’s, ecological processes and human activities, its indication is a parameter of measurement how and with which extent the human influenced the natural surface with temporal variations. The change detection technique is used based upon the temporal observations from 2000 to 2015. Study area is one of the most populated city of Pakistan where industrial revolution is at its peak. The whole study area is categorized into four classes (i.e. Agricultural, Barren, Built-up and semi natural surfaces). The observational intervals were divided into three main classes i.e. 2000 to 2005, 2005 to 2010 and 2010 to 2015. Remarkable changes were occurred in built up area from 2000 to 2015 which is 38.6 % of total area, while the total change/decreased in barren land is -332 9(ha), similarly the Parks and grasses are also in decreasing extent and affect the local biodiversity and natural environment. The land cover is directly proportional to population expansion of urban city. For making the prediction of future urban expansion, previously occurred changes were aggregated to come up with a single value and then adding it to the recent land-use values. The mapping and analysis was undertaken through techniques of remote sensing and GIS, which proved to be very effective to measure the changes, and trend of changes with time, this mapping not only tells us the scale of change but, also tells us the patterns and the forces which causes these changes.
Źródło:
Environment, Earth and Ecology; 2019, 3, 1; 13-23
2543-9774
2451-4225
Pojawia się w:
Environment, Earth and Ecology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficacy of three entomopathogenic fungi alone or in combination with diatomaceous earth modifications for the control of three pyralid moths in stored grains
Autorzy:
Sabbour, M.M.
El-Sayed Abt-El-Aziz, S.
Adel Sherief, M.
Powiązania:
https://bibliotekanauki.pl/articles/65723.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The efficacy of Natural diatomaceous (DE) alone and combined with three fungal pathogens: Beauveria bassiana, Metarhizium anisopliae and Isaria fumosorosea against three moth species, Plodia interpunctella, Ephestia cautella and E. kuehniella was evaluated. Modified diatoms with Calcium hydroxide (Ca-DE) and modified diatoms with Sodium hydroxide (Na-DE) were the highlight treatments against tested insects and achieved the highest mortality percentages. E. kuehniella achieved the highest tolerant to tested DEs. B. bassiana was the most effective fungus alone against the three tested insects. Ca-DE and Na-DE treatments strongly enhanced the potency of the tested fungi. E. kuehniella was more susceptible to M. anisopliae and B. bassiana. Larvae of P. interpunctella and E. cautella were more tolerant to I. fumosorosea alone than E. kuehniella. In most cases, DE combinations with tested fungi had synergistic effects, while in E. cautella, modified diatoms with Aluminium hydroxide (Al-DE) decreased the efficacy of M. anisopliae and I. fumosorosea. Also, Al-DE and DE impaired the efficacy of I. fumosorosea against E. kuehniella. The egg production was highly suppressed by combination of Ca-DE followed by Na-DE with tested fungi in comparison to untreated control. The combination of Ca-DE/Beauveria bassiana strongly suppressed the number of deposited eggs of P. interpunctella (54.6±5.8 eggs/female), in comparison to untreated control (288.3±3.4 eggs/female). The most effective DEs modification were Ca-DE and Na-DE had insecticidal, repellent and ovicidal effects against tested insects and they had synergistic effects on the potency of tested fungi.
Źródło:
Journal of Plant Protection Research; 2012, 52, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
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