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Journal of materials Science & Technology 2013年第5期29卷 411-414页

作者： S.S.Batool Z.Imran m.israr qadir m.Usman H.Jamil m.A Rafiq m.m.Hassan m.Willander micro and Nano Devices Group Department of Metallurgy and Materials EngineeringPakistan Institute of Engineering and Applied SciencesPO NiloreIslamabad 45650Pakistan Department of Science and Technology Campus NorrkpingLinkping UniversitySE-60174 NorrkpingSweden

The effect of metal （Ti, Ni, and Au） electrodes on humidity sensing properties of electrospun TiO2 nanofibers was investigated in this work. The devices were fabricated by evaporating metal contacts on SiO2 layer thermally grown on silicon substrate. The separation between the electrodes was 90 μm for all sensors. The sensors were tested from 40% to 90% relative humidity （RH） by AC electrical characterization at room temperature. When sensors are switched between 40% and 90% RH, the corresponding response and recovery time are 3 s and 5 s for Ti-electrode sensor, 4 s and 7 s for Ni-electrode sensor, and 7 s and 13 s for Au-electrode sensor. The hysteresis was 3%, 5% and 15% for sensitivity of Ti, Ni, and Au-electrode sensors are Ti-, Ni-, and Au-electrode sensor, respectively. The 7.53 mΩ/%RH, 5.29 mΩ/%RH and 4.01 mΩ/%RH respectively at 100 Hz. Therefore Ti-electrode sensor is found to have linear response, fast response and recovery time and higher sensitivity as compared with those of Ni- and Au-electrode sensors. Comparison of humidity sensing properties of sensors with different electrode material may propose a compelling route for designing and optimizing humidity sensors.

关键词： Titanium dioxide Nanofibers metal electrodes Humidity sensor

Applications of beneficial plant growth promoting rhizobacteria and mycorrhizae in rhizosphere and plant growth:A review

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International Journal of Agricultural and Biological Engineering 2020年第5期13卷 199-208页

作者： Ashiq Khan Zitong Ding muhammad Ishaq israr Khan Anum Ali Ahmed Abdul qadir Khan Xusheng Guo Key Laboratory of Grassland and Agro-ecosystems School of Life SciencesLanzhou UniversityLanzhou 730000China Department of microbiology Balochistan University of Information Technology Engineering&Management Sciences Quetta 87300Pakistan Probiotics and Biological Feed Research Center Lanzhou UniversityLanzhou 730000China School of Life Sciences Institute of Microbiology Lanzhou UniversityLanzhou 730000China

Because of climate change and the highly growing world population,it becomes a huge challenge to feed the whole *** overcome this challenge and increase the crop yield,a large number of fertilizers are applied but these have many side *** of these,scientists have discovered beneficial rhizobacteria,which are environmentally friendly and may increase crop yield and plant *** microbial population of the rhizosphere shows a pivotal role in plant development by inducing its *** depends upon the valuable interactions among the roots and microbes for the growth,nutrients availability,growth promotion,disease suppression and other important roles for *** numerous secrets of microbes in the rhizosphere have been revealed due to huge development in molecular and microscopic *** review illustrated and discussed the current knowledge on the development,maintenance,interactions of rhizobacterial populations and various proposed mechanisms normally used by PGPR in the rhizosphere that encouraging the plant growth and alleviating the stress *** addition,this research reviewed the role of single and combination of PGPR,mycorrhizal fungi in plant development and modulation of the stress as well as factors affecting the microbiome in the rhizosphere.

关键词： rhizosphere plant growth promoting rhizobacteria mycorrhizae nitrogen fixing bacteria phosphate solubilizing bacteria

Gauss-Bonnet and Lovelock Gravities and the Generalized Second Law of Thermodynamics

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Chinese Physics Letters 2009年第6期26卷 41-44页

作者： m. Akbar Asghar qadir Centre for Advanced mathematics and Physics National University of Sciences and Technology Peshawar Road Rawalpindi Pakistan Kavli Institute for Theoretical Physics Chinese Academy of Sciences Beijing 100190

It has been shown [Chin. Phys. Lett.25 （2008） 4199] that the generalized second law of thermodynamics holds in Einstein gravity. Here we extend this procedure for Gauss-Bonnet and Lovelock gravities. It is shown that by employing the general expression for temperature Th =｜κ｜/2π= 1/2πτA （1-τA/2HτA） associated with the apparent horizon of a Friedman Robertson-Walker （FRW） universe and assuming Tm = bTh, we are able to construct conditions for which the generalized second law holds in Gauss Bonnet and Lovelock gravities, where Tm and Th are the temperatures of the source and the horizon respectively.

关键词： No English Keywords

Extraction and characterization of alumina nanopowders from aluminum dross by acid dissolution process

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International Journal of minerals,metallurgy and materials 2015年第4期22卷 429-436页

作者： Saifur Rahman Sarker Zahangir Alam Rakibul qadir m A Gafur mohammad moniruzzaman Department of Applied Chemistry and Chemical Engineering University of Dhaka Pilot Plant & Project Development Centre (PP& PDC) Bangladesh Council of Scientific and Industrial Research (BCSIR) BCSIR Laboratories Dhaka

A significant amount of aluminum dross is available as a waste in foundry industries in Bangladesh. In this study, alumina was ex- tracted from aluminum dross collected from two foundry industries situated in Dhamrai and manikgang, near the capital city, Dhaka. Alu- minum dross samples were found to approximately contain 75wt% A1203 and 12wt% SIO2. An acid dissolution process was used to recover the alumina value from the dross. The effects of various parameters, e.g., temperature, acid concentration, and leaching time, on the extrac- tion of alumina were studied to optimize the dissolution process. First, AI（OH）3 was produced in the form of a gel. Calcination of the AI（OH）3 gel at 1000℃, 1200℃, and 1400℃ for 2 h produced O-AlcOa, （t~＋O）-A1203, and u-alumina powder, respectively. Thermal charac- terization of the AI（OH）3 gel was performed by thermogravimetric/differential thermal analysis （TG/DTA） and differential scanning calo- rimetry （DSC）. The phases and crystallite size of the alumina were determined by X-ray diffraction analysis. The dimensions of the alumina were found to be on the nano level. The chemical compositions of the aluminum dross and alumina were determined by X-ray fluorescence （XRF） spectroscopy. The microstructure and morphology of the alumina were studied with scanning electron microscopy. The purity of the alumina extracted in this study was found to be 99.0%. Thus, it is expected that the obtained alumina powders can be potentially utilized as biomaterials.

关键词： aluminum dross alumina nanoparticles acid dissolution calcination X-ray fluorescence analysis

Functional properties,antioxidant activity and in-vitro digestibility characteristics of brown and polished rice flours of Indian temperate region

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Grain & Oil Science and Technology 2023年第1期6卷 43-57页

作者： Nafiya qadir Idrees Ahmed Wani Department of Food Science and Technology University of KashmirHazratbalSrinagar 190006India

The present investigation was aimed to study functional properties,antioxidant activity and in-vitro digestibility characteristics of brown and polished flours obtained from four rice cultivars(SR-4,K-39,mushq Budij and Zhag)of *** rice flours had higher total dietary fibre(3.08%-3.68%),oil absorption(116.0%-139.0%),emulsion capacity(4.78%-9.52%),emulsion stability(87.46%-99.93%)and resistant starch content(6.80%-9.00%)than polished ***,polished flours presented greater water absorption(102.0%-122.0%),foaming capacity(8.00%-13.63%),apparent amylose(19.16%-22.62%),peak(2260.0-2408.0 cP),trough(1372.0-1589.0 cP)and breakdown(714.0-978.0 cP)viscosities than their brown *** rice flours depicted highest total phenolic content(4.40-6.40 mg GAE/g)and inhibition of lipid peroxidation(19.50%-33.20%).However,equilibrium starch hydrolysis percentage(C∞)and predicted glycemic index of brown rice flours were lower than their polished *** rice cultivars,brown Zhag flour had the highest total dietary fibre(3.68%),emulsion capacity(9.52%),emulsion stability(99.93%),resistant starch(9.00%),DPPH radical scavenging activity(85.45%)and inhibition of lipid peroxidation(33.20%),*** capacity and emulsion stability were positively correlated with protein content of rice ***,peak,trough,breakdown and setback viscosities were negatively correlated with protein and fat contents of rice *** present investigation will be helpful in identifying nutritive role of rice flours from studied cultivars in human diet.

关键词： Polishing Rice flour Functional properties Antioxidant activity In-vitro digestibility

Cellular automata-based approach for digital image scrambling

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International Journal of Intelligent Computing and Cybernetics 2018年第3期11卷 353-370页

作者： Zubair Jeelani Fasel qadir Department of Computer Science University of KashmirSrinagarIndia

Purpose–The purpose of this paper is to investigate two-dimensional outer totalistic cellular automata(2D-OTCA)rules other than the Game of Life rule for image *** paper presents a digital image scrambling(DIS)technique based on 2D-OTCA for improving the scrambling *** comparison of scrambling performance and computational effort of proposed technique with existing CA-based image scrambling techniques is also ***/methodology/approach–In this paper,a DIS technique based on 2D-OTCA with von Neumann neighborhood(NvN)is *** of three important cellular automata(CA)parameters on gray difference degree(GDD)is analyzed:first the OTCA rules,afterwards two different boundary conditions and finally the number of CA generations(k)are *** authors selected a random sample of gray-scale images from the Berkeley Segmentation Data set and Benchmark,BSDS300(***/Research/Projects/CS/vision/bsds/)for the ***,the CA is setup with a random initial configuration and the GDD is computed by testing all OTCA rules,one by one,for CA generations ranging from 1 to 10.A subset of these tested rules produces high GDD values and shows positive correlation with the k ***,this sample of rules is used with different boundary conditions and applied to the sample image data set to analyze the effect of these boundary conditions on ***,in order to compare the scrambling performance of the proposed technique with the existing CA-based image scrambling techniques,the authors use same initial CA configuration,number of CA generations,k紏10,periodic boundary conditions and the same test ***–The experimental results are evaluated and analyzed using GDD parameter and then compared with existing *** technique results in better GDD values with 2D-OTCA rule 171 when compared with existing *** CPU running time of the proposed algorithm is also considerably small as compa

关键词： Cellular automata Image processing Gray difference degree Image encryption Image scrambling

Zinc:Role in the management of diarrhea and cholera

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World Journal of Clinical Cases 2013年第4期1卷 140-142页

作者： m Imran qadir Arfa Arshad Bashir Ahmad College of Pharmacy GC University Faculty of Pharmacy Bahauddin Zakariya University

Diarrhea and cholera are major health *** cholera,the causative agent of cholera,infects the small intestine,resulting in vomiting,massive watery diarrhea and *** water and electrolyte absorption is also due to zinc *** has an important role in recovery from the *** combination of zinc with cholera vaccine and oral rehydration solutions has a positive impact on cholera and *** has led to a decrease in the mortality and morbidity associated with diarrhea.

关键词： Diarrhea Cholera Vibrio cholera Zinc Oral rehydration solutions

Reflection of thermoelastic wave on the interface of isotropic half-space and tetragonal syngony anisotropic medium of classes 4, 4/m with thermomechanical effect

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Chinese Physics B 2016年第3期25卷 414-417页

作者： Nurlybek A Ispulov Abdul qadir m A Shah Ainur K Seythanova Tanat G Kissikov Erkin Arinov S. Toraygyrov Pavlodar State University Pavlodar 140008 Kazakhstan Department of Electrical Engineering Sukkur Institute of Business Administration Sindh Pakistan Zhezkazgan University Kazakhstan

The thermoelastic wave propagation in a tetragonal syngony anisotropic medium of classes 4, 4/m having heterogeneity along z axis has been investigated by employing matrizant method. This medium has an axis of second-order symmetry parallel to z axis. In the case of the fourth-order matrix coefficients, the problems of wave refraction and reflection on the interface of homogeneous anisotropic thermoelastic mediums are solved analytically.

关键词： anisotropic medium thermoelasticity harmonic waves dispersion

Development of magnesium-Dominant Soils Under Irrigated Agriculture in Southern Kazakhstan

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Pedosphere 2009年第3期19卷 331-343页

作者： A. KARImOV m. qadir A. NOBLE F. VYSHPOLSKY K. ANZELm International Water management Institute (IWmI) Central Asia Regional Office Tashkent 700000 (Uzbekistan) International Center for Agricultural Research in the Dry Areas (ICARDA) Aleppo 5466 (Syria) International Water management Institute (IWmI) Colombo 2075 (Sri Lanka) International Water management Institute (IWmI) c/o WorldFish Center Penang 11960 (Malaysia) Water Conservation Laboratory The Kazakh Research Institute of Water Management Ministry of Agriculture Taraz480022 (Kazakhstan) Southern Kazakhstan Hydrogeology and Land Reclamation Expedition Shymkent (Kazakhstan)

Irrational irrigation practices in the Arys Turkestan Canal command area in the southern part of Kazakhstan have led to the formation of soils with poor physical and chemical properties. To study whether irrigation and leaching practices and/or groundwater rise have contributed to the accumulation of mg2+ on the cation exchange complex of these soils, historical changes in soil and groundwater quality were used as source data and the Visual mINTEQ model was applied to analyze the chemical composition of water and soils in the study area. The imposed irrigation regime and the leaching of light sierosem soils led to the dissolution and subsequent leaching of inherent gypsum and organic matter from the soil profile. Further, the domination of bicarbonate in the irrigation water promoted weathering of the carbonate minerals present as calcite. The higher concentrations of mg2+ in comparison to Ca2+ in the irrigation water resulted in the replacement of Na+ by mg2+ on the cation exchange complex. In the lower part of the command area, shallow groundwater has contributed to the accumulation of Na+ and to a large extent of mg2+ on the cation exchange sites.

关键词： exchangeable magnesium high-magnesium soil and water Kazakhstan land degradation

Dependence of effective screening length in granular columns on bead and silo sizes and their ratio

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Chinese Physics B 2013年第5期22卷 591-594页

作者： Abdul qadir madad Ali Shah Saeed Ahmed Khan Department of Electrical Engineering Sukkur Institute of Business Administration

Apparent mass measurements at the bottom of silos have been carried out. An important parameter in the Janssen model known as the effective screening length has been investigated for different bead and silo diameters as well as of their ratios. It is found that the effective screening length augments with the grain diameter d in addition to the granular column size. It is also revealed that λ exhibits stronger correlation with the bead diameter than that of the silo. This phenomenon is attributed to the reduced-shielding of the vertical stresses to the horizontal ones.

关键词： granular systems granular solids static sand piles granular compaction