检索结果-南通市图书馆

Removal of organic pollutants by lanthanide-doped mIL-53(Fe) metal-organic frameworks:Effect of dopant type in magnetite precursor

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2023年第1期41卷 140-148页

作者： Shimaa m.ali Khadija m.Emran Fedaa m.m.Alrashedee Department of Chemistry Faculty of ScienceCairo University.Giza12613Egypt Department of Chemistry Faculty of ScienceTaibah UniversityMadinah30002Saudi Arabia

A series of undoped and lanthanide doped mIL-53(Fe)/Ln-Fe_(3)O_(4)(Ln=La,Nd,or Gd) metal-organic frameworks(mOFs) were prepared by the solvothermal *** prepared samples were characterized by X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FT-IR),Brunauer-Emmett-Teller(BET) measurements,scanning electron microscopy(SEm),and thermal *** and FT-IR results ascertain the successful mOF formation for all prepared ***-53(Fe)/La-Fe_(3)O_(4) has the smallest particle size of 8.6 nm,the largest BET surface area of 54.2 m^(2)/g,and the highest *** and different lanthanide doped mIL-53(Fe) we re employed as sorbents for the removal of methylene blue(mB)dye from aqueous solutions to examine the doping benefit and the effect of the dopant size on the sorption *** causes mOFs to act as pH-independent sorbents,which make it applicable at any *** follows pseudo-second-order kinetic model,and doped sorbents attain equilibrium *** isotherms are followed,except for mIL-53(Fe)/La-Fe_(3)O_(4).The adsorption capacity increases with increasing the dopant ion size,100.5 mg/g for La-doped mOF,which is about four times higher than that of undoped *** adsorption mechanism involves chemical interactions between Lewis acid in magnetite mIL-53(Fe) series and Lewis base in mB.

关键词： Lanthanide metal organic framework Adsorption Doping Organic dyes Rare earths

Wheat grain yield and nitrogen uptake prediction using atLeaf and GreenSeeker portable optical sensors at jointing growth stage

在线全文

学校读者我要写书评

暂无评论

Information Processing in Agriculture 2020年第3期7卷 375-383页

作者： ali m.ali S.m.Ibrahim Bijay-Singh Department of Soil Fertility and microbiology Desert Research CenterCairo 11753Egypt Department of Soil Science Punjab Agricultural UniversityLudhiana 141004India

Rapid acquisition of information about nitrogen(N)uptake and grain yield is an essential step in making site-specific in-season fertilizer N management *** objective of this study was to quantify and validate the relationships between N uptake and grain yield of wheat using in-season measurements with atLeaf chlorophyll meter and GreenSeeker optical sensor at Feekes 6 growth stage(jointing stage)of *** relationships were developed using data generated from experiments with multi-rate fertilizer N treatments and conducted in two consecutive wheat seasons(2017/2018 and 2018/2019)at two locations in the western Nile Delta of Egypt.A power function based on atLeaf measurement at Feekes 6 stage of wheat could explain 55.3%and 53.3%variations in the N uptake at this stage and grain yield at maturity,*** with GreenSeeker were related with N uptake and yield of wheat through exponential function and could explain 68.5%and 60.6%of the variation in N uptake and grain yield,*** developed models were validated on an independent data set from another field experiment on *** normalized root mean square error for the relation between atLeaf measurements and N uptake and grain yield were fair,whereas the fits were good for measurements with *** study reveals that atLeaf chlorophyll meter and GreenSeeker optical sensor can be successfully used for establishing site-specific N management strategies in wheat.

关键词： N uptake Grain yield Wheat atLeaf sensor GreenSeeker sensor

Estimation of the evaporative losses from Lake Nasser, Egypt using optical satellite imagery

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Digital Earth 2012年第2期5卷 133-146页

作者： Islam H.Abou El-magd Elham m.ali National Authority for Remote Sensing and Space Sciences CairoEgypt Department of Environmental Sciences Suez Canal UniversitySuez BranchEgypt

Water shortage in the arid region is an existing and future severe problem that threatens this part of the *** has a limited budget of 55 Bm3 per year from the river Nile basin that has always been stored in the Lake Nasser reservoir,southern *** has been estimated that the water losses from the lake ranges from 10 to 20 Bm3 a year*** paper discusses the possibility of estimating the surface evaporation from Lake Nasser using optical remotely sensed *** surface energy balance algorithm for land(SEBAL)algorithm was used to estimate the monthly evaporation rate using National Oceanic and Atmospheric Administration-Advanced Very High Resolution Radiometer(NOAA-AVHRR)satellite images based on the energy balance *** main variable within these components is the surface temperature,which was calculated by a calibrated split window equation from the remotely sensed ***-four satellite images during the year 2008 were used to estimate the maximum and minimum evaporative losses from the lake at 16.3 and 12.5 Bm3 year1,*** compared with the Penman-monteith mathematical formula,a high correlation was obtained with r2*** study demonstrated that remotely sensed data can provide a robust estimate of evaporative losses from Lake Nasser that can aid decision makers in better management and Digital Earth studies.

关键词： Lake Nasser remote sensing Digital Earth evaporation energy balance surface temperature

Generalized and Improved(G′/G)-Expansion method Combined with Jacobi Elliptic Equation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2014年第6期61卷 669-676页

作者： m.ali Akbar Norhashidah Hj.mohd.ali E.m.E.Zayed School of mathematical Sciences Universiti Sains Malaysia Department of Applied mathematics University of Rajshahi mathematics Department Faculty of Science Zagazig University

In this article, we propose an alternative approach of the generalized and improved （G＇/G）-expansion method and build some new exact traveling wave solutions of three nonlinear evolution equations, namely the Boiti- Leon-Pempinelle equation, the Pochhammer-Chree equations and the Painleve integrable Burgers equation with free parameters. When the free parameters receive particular values, solitary wave solutions are constructed from the traveling waves. We use the Jacob/elliptic equation as an auxiliary equation in place of the second order linear equation. It is established that the proposed algorithm offers a further influential mathematical tool for constructing exact solutions of nonlinear evolution equations.

关键词： Boiti-Leon-Pempinelle equation Painleve integrable burgers equation Pochhammer-Chree equa-tion (GI/G)-expansion method traveling wave solutions

Design and Implementation of the Security Subsystem in Payroll management System

在线全文

学校读者我要写书评

暂无评论

计算机科学 2002年第Z1期29卷 182-184,159页

作者： Zeyad m.ali Alfawaer College of Information Science & Engineering Central South University Changsha 410083 P. R. CHINA

This paper designs a security subsystem based on password protection and triggers mechanism in database management systems. Structure and function of the security subsystem is described in a payroll management system as an example of how the security subsystem gives additional security from possible intended or accidental attacks to the entire database system. The security subsystem involves password protection, triggers and improved physical storage mechanism, which combine together to be integrity to enhance security *** of the security subsystem in a payroll database has proved its effectiveness.

关键词： Security subsystem Triggers Password protection mirroring

Abundant Exact Traveling Wave Solutions of Generalized Bretherton Equation via Improved (G′/G)-Expansion method

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2012年第2期57卷 173-178页

作者： m.ali Akbar Norhashidah Hj.mohd.ali E.m.E.Zayed School of mathematical Sciences Universiti Sains MalaysiaMalaysia mathematics Department Faculty of ScienceZagazig UniversityZagazigEgypt

In this article, we construct abundant exact traveling wave solutions involving free parameters to the generalized Bretherton equation via the improved (G′/G)-expansion method. The traveling wave solutions are presented in terms of the trigonometric, the hyperbolic, and rational functions. When the parameters take special values, the solitary waves are derived from the traveling waves.

关键词： improved (G'/G)-expansion method travelling wave solutions the Bretherton equation nonlinearevolution equations

Therapeutic potential of Calotropis gigantea extract against invasive pulmonary aspergillosis:In vitro and in vivo study

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Biomedicine 2022年第6期12卷 243-252页

作者： Enas m.ali manal A.Alfwuaires Gehan m.Badr Department of Biological Sciences Faculty of ScienceKing Faisal UniversityP.O.Box 380Al-Ahsa 31982Saudi Arabia Department of Botany and microbiology Faculty of ScienceCairo UniversityCairo 12613Egypt Department of Zoology Faculty of ScienceAin Shams UniversityCairo11566Egypt

Objective:To characterize the antifungal activity of methanolic leaf extract of Calotropis gigantea alone or in combination with amphotericin B against invasive pulmonary aspergillosis in ***:GC/mS was used for analysis of active constituents of Calotropis gigantea *** germination assay and broth micro-dilution method were used to determine antifungal potential of Calotropis gigantea/amphotericin B against Aspergillus *** mice were randomly assigned into 5 groups:group 1 was neutropenic(control);group 2 was infected with Aspergillus fumigatus;group 3 was infected with Aspergillus fumigatus,and treated with Calotropis gigantea extract;group 4 was infected with Aspergillus fumigatus and treated with amphotericin B;group 5 was infected with Aspergillus fumigatus and treated with both Calotropis gigantea extract and amphotericin *** lung tissues were histopathologically *** burden and gliotoxin concentration were evaluated in lung ***,superoxide dismutase,and malondialdehyde content were determined in lung ***,tumor necrosis factor-alpha,interleukin-1,and interleukin-17 were also estimated by the sandwich enzyme-linked immuno-sorbent ***:Calotropis gigantea/amphotericin B had a minimum inhibitory concentration and minimum fungicidal concentration of 80 and 160μg/mL,respectively,for Aspergillus ***,Calotropis gigantea/amphotericin B significantly reduced lung fungal burden by 72.95%and inhibited production of gliotoxin in lung tissues from 6320 to 1350μg/g *** gigantea/amphotericin B reduced the oxidative stress of the lung via elevating the activity of antioxidant enzymes and decreasing the levels of lipid *** activity and the production of pro-inflammatory cytokines were also significantly *** electron microscopy revealed deteriorations in the hyphae ultrastructure in Calotropis gigantea/amphotericin B trea

关键词： Aspergillus fumigatus Antifungal Invasive pulmonary aspergillosis Calotropis gigantea Amphotericin B mice

Hypolipidemic effect of coffee silver skin in rats fed a high-fat diet

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2018年第4期7卷 252-259页

作者： Ayman mohammed El-Anany Rehab Farouk m.ali Department of Special Food and Nutrition Researches Food Technology Research InstituteAgricultural Research CenterGizaEgypt Biochemistry Department Faculty of AgricultureCairo UniversityGizaEgypt Department of Food Science and Human Nutrition College of Agriculture and Veterinary MedicineAl-Qassum UniversityQassimSaudi Arab

The present study was conducted to evaluate the hypolipidemic effects of coffee silver skin(CSS)supplementation in rats fed a highfat diet(HFD).A total of 40 albino rats were used in the present *** groups were as follows:Rats fed a normal diet,N group;high fat diet,HFD group;high fat diet+10%CSS,HFD 10;HFD+15%CSS,HFD 15;HFD+20%CSS,HFD 20;the diets were followed for 8 *** samples were collected at the end of the *** the time of sacrifice,the weights of heart,liver,kidneys,epididymal fat and retroperitoneal fat of the experimental rats with respect to body weight were *** lipid parameter of the serum was recorded and liver and kidney function tests were ***,a histopathological assay was performed on the liver and kidney tissues of the rats fed the tested *** weight gain of the rats fed a HFD supplemented with 10,15 and 20%CSS was∼1.05,1.08 and 1.12 times lower than that of those rats fed HFD,*** incorporation of CSS at a level of 20%reduced the increase in liver,kidney,epididymal fat and retroperitoneal fat weight by 17.84,19.38,47.23 and 18.00%,respectively,compared with HFD *** administration induced considerable increases in alanine aminotransferase,aspartate aminotransferase and alkaline phosphatase activities compared with the control *** results also indicated that the HFD-fed rats exhibited increased levels of urea,uric acid and creatinine,by∼26.38,8.40 and 6.75%,respectively,compared with the control *** the exception of high-density lipoprotein cholesterol,all lipid fractions increased significantly in rats fed a *** administration of a HFD induced marked pathological changes in the liver and kidneys of the ***,the incorporation of various levels of CSS in to a HFD reduced these *** results of the present study illustrate that the incorporation of CSS into HFDs reduces the hyperlipidemia effect of these diets.

关键词： Hypolipidemic Coffee Fiber Biochemical Serum lipid

Study of abundant explicit wave solutions of the Drinfeld-Sokolov-Satsuma-Hirota(DSSH)equation and the shallow water wave equation

在线全文

学校读者我要写书评

暂无评论

Propulsion and Power Research 2018年第4期7卷 320-328页

作者： H.m.Shahadat ali m.mamun miah m.ali Akbar Department of Applied mathematics Noakhali Science and Technology UniversityNoakhali 3814Bangladesh Department of mathematics Khulna University of Engineering&Technology.Khulna 9203Bangladesh Department of Applied mathematics University of Rajshahi.Rajshahi 6205Bangladesh

In this article,the two variable(G'G,1/G)-expansion method is suggested to investigate new and further general multiple exact wave solutions to the Drinfeld-Sokolov-Satsuma-Hirota(DSSH)equation and the shallow water wave equation which arise in mathematical physics with the aid of computer algebra software,like *** functions and the rational functions solution are *** method demonstrates power,reliability and ***,the method is the generalization of the well-known(G/G)-expansion method established by Wang et *** the method also presents a wider applicability for conducting nonlinear wave equations.

关键词： Explicit wave solutions Computer algebra software Drinfeld-Sokolov-Satsuma-Hirota(DSSH)equation Shallow water wave equation Soliton