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溶胶凝胶合成锰掺杂ZnO的室温磁性行为

Chinese Journal of Chem.cal Physics 2010年第4期23卷 469-472,I0002页

作者： m.rtaza Saleem.Saadat A. Siddiqi Shahid Atiq m. sabieh anwar Saira Riaz 旁通普大学固态物理中心拉赫尔54590 拉赫尔管理科学大学科学与工程学院拉赫尔54792

通过溶胶凝胶自燃法合成锰掺杂氧化锌纳米晶体，研究了m.掺杂ZnO稀磁半导体（简称Dm.）的性质．X射线衍射光谱表明，锰掺杂氧化锌保留纤锌矿型状氧化锌六角晶体结构．采用能量色散X射线能谱和扫描电子显微镜分别对成分和形态进行研究．... 详细信息

通过溶胶凝胶自燃法合成锰掺杂氧化锌纳米晶体，研究了m.掺杂ZnO稀磁半导体（简称Dm.）的性质．X射线衍射光谱表明，锰掺杂氧化锌保留纤锌矿型状氧化锌六角晶体结构．采用能量色散X射线能谱和扫描电子显微镜分别对成分和形态进行研究．温度依赖的电阻率显示了Dm.的半导体材料行为．振动样品磁强计测定的室温磁性行为，揭示了锰掺杂氧化锌的铁磁性和反磁性特性．

关键词：纳米晶稀磁半导体自燃法室温铁磁性

Cost-Efficient m.dium.Frequency Propagation Research with Software Defined Radio

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World Journal of Engineering and Technology 2024年第1期12卷 158-169页

作者： Casey m. Hess Sohail anwar Division of Business Engineering and Information Sciences and Technology Department of Electromechanical Engineering Technology Pennsylvania State University Altoona Campus Altoona Pennsylvania USA Division of Business Engineering and Information Sciences and Technology Department of Engineering Pennsylvania State University Altoona Campus Altoona Pennsylvania USA

m.dium.Frequency radio holds significance in m.dern society as it supports broadcasting and individual com.unications in the public, governm.nt, and m.litary sectors. Enhancing the availability and quality of these com.unications is only possible by enhancing the understanding of m.dium.frequency propagation. While traditional m.thods of radio wave propagation research can have a high m.terial dem.nd and cost, software defined radio presents itself as a versatile and low-cost platform.for m.dium.frequency signal reception and data acquisition. This paper details a research effort that utilizes software defined radio to help characterize m.dium.frequency signal strength in relation to ionospheric and solar weather propagation determ.nants. Signal strength data from.seven m.dium.frequency stations of unique transm.ssion locations and varying transm.ssion powers were retrieved in 24-hour segm.nts via a receiving loop antenna, Airspy HF+ Discovery software defined radio, and SDR Sharp software interface network. Retrieved data sets were visualized and analyzed in m.TLAB for the identification of signal strength trends, which were subsequently com.ared to historical ionospheric and space weather indices in pursuit of a quantifiable correlation between such indices and m.dium.frequency signal strengths. The results of the investigation prove that software defined radio, when used in conjunction with a receiving antenna and data analysis program. provides a versatile m.chanism.for cost-efficient propagation research.

关键词： Ionosphere Space Weather Airspy SDR SDR Sharp m.TLAB Analysis

Treadm.ll training in Parkinson's disease:possible role of prefrontal m.difications in the im.roved cortical-subcortical network function

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Neural Regeneration Research 2024年第2期19卷 407-408页

作者： Hao Ding Am.ad Droby Abdul Rauf anwar Jeffrey m.Hausdorff Bahm.n Nasseroleslam. Anat m.relm.n Inbal m.idan m.thuram.n m.thuram.n Departm.nt of Neurology University Hospital WürzburgWürzburgGermany Academ.c Unit of Neurology Trinity College Dublinthe University of DublinDublinIreland Departm.nt of Neurology Sackler Faculty of MedicineTel Aviv UniversityTel AvivIsrael Sagol School of Neuroscience Tel Aviv UniversityTel AvivIsrael Biom.dical Engineering Centre UET Lahore(KSK Campus)LahorePakistan Laboratory for Early m.rkers of Neurodegeneration(LEm.N) Center for the Study of MovementCognitionand Mobility(CMCM)Neurological InstituteTel Aviv Sourasky Medical CenterTel AvivIsrael Departm.nt of Physical Therapy Sackler Faculty of MedicineTel Aviv UniversityTel AvivIsrael Rush Alzheim.r’s Disease Center and Departm.nt of Orthopaedic Surgery Rush University Medical CenterChicagoILUSA

Parkinson’s disease(PD)is a com.lex neurodegenerative disorder characterized by a range of m.tor sym.tom. such as bradykinesia,resting trem.r,rigidity,and postural instability,as well as non-m.tor sym.tom.,such as de... 详细信息

关键词： rigidity fatigue

Exogenous application of bio-stim.lants and growth retardants im.rove nutrient absorption and fiber quality in upland cotton

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Journal of Cotton Research 2024年第2期7卷 137-147页

作者： Al-Khayri Jam.el m. Arif m.ham.ad Kareem.Shadia Ham. Salih anwar Adeel Dehghanisanij Hossein Em.m. Som.yeh Yasm.en Azra Aftab Kom.l Negm.m.ham.d Departm.nt of Agricultural Biotechnology College of Agriculture and Food SciencesKing Faisal University31982 Al‑AhsaSaudi Arabia Water Resources Zone Irrigation Department PunjabD.G.KhanPakistan Departm.nt of Biotechnology and Crop Science College of Agricultural Engineering SciencesUniversity of SulaimaniSulaimaniIraq Departm.nt of Agronom. PMAS-Arid Agriculture UniversityRawalpindiPakistan Agricultural Research Education and Extension OrganizationAgricultural Engineering Research InstituteKarajAlborzIran Departm.nt of Water Engineering University of TabrizTabrizIran Departm.nt of Agronom. Bahauddin Zakariya UniversityMultanPakistan Departm.nt of Plant Breeding and Genetics Bahauddin Zakariya UniversityMultanPakistan Agricultural Research Center Cotton Research InstituteGiza 12619Egypt

Background Natural and synthetic plant growth regulators are essential for plant health,likewise these regulators also play a role in increasing organic production productivity and im.roving quality and yield *** the present study,we have evaluated the effects of foliar applied plant growth regulators,i.e.,m.ringa leaf extract(m.E)and m.piquat chloride(m.)alone and in com.ination m. and m.E on the conventional cotton cultivar(CIm.573)and transgenic one(CIm.598).The growth regulators were applied at the start of bloom.45 and 90 days after *** The application of m. and m.E at 90 days after bloom.ng significantly im.roved the relative growth rate,net assim.lation rate,the num.er of bolls per plant,and seed cotton ***,the com.ined application of m.E and m. at 90 days after bloom.ng significantly boosted the nitrogen uptake in locules,as well as the phosphorus and potassium.uptake in the leaves of both cotton *** application of m.E alone has considerably im.roved the nitrogen uptake in leaves,and phosphorus and potassium.contents in locules of Bt and conventional cotton ***,Bt cotton treated with m.E at 90 days after bloom.ng produced significantly higher ginning out turn and oil *** in com.ination(m.E+m.)at 90 days after bloom.ng produced considerably higher m.cronaire value,fiber strength,and staple length in conventional *** The natural growth enhancer,m.E is a rich source of m.nerals and zeatin,im.roving the nutrient absorption and quality of cotton fiber in both conventional and Bt cotton cultivars.

关键词： Bio-stim.lant Cotton Fiber quality m.piquat chloride m.ringa leaf extract Potassium.accum.lation Oil contents

Responses of Annual Variability of Vegetation NPP to Clim.te Variables Using Satellite Techniques in Gadarif State, Sudan

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Journal of Geographic Inform.tion System 2024年第2期16卷 136-147页

作者： anwar m.ham.delhassan Bo Zhang Abdelrahim.E. Jahelnabi Em.n m. Elhassan Faculty of Geography and Environm.ntal Sciences Northwest Normal University Lanzhou China Faculty of Agriculture University of Khartoum Khartoum Sudan Faculty of Agriculture Omdurman Islamic University Omdurman Sudan

Plants play an essential role in m.tter and energy transform.tions and are key m.ssengers in the carbon and energy cycle. Net prim.ry productivity (NPP) reflects the capability of plants to transform.solar energy into photosynthesis. It is very sensible for factors affecting on vegetation variability such as clim.te, soils, plant characteristics and hum.n activities. So, it can be used as an indicator of actual and potential trend of vegetation. In this study we used the actual NPP which was derived from.m.DIS to assess the response of NPP to clim.te variables in Gadarif State, from.2000 to 2010. The correlations between NPP and clim.te variables (tem.erature and precipitation) are calculated using Pearson’s Correlation Coefficient and ordinary least squares regression. The m.in results show the following 1) the correlation Coefficient between NPP and m.an annual tem.erature is Som.what negative for Feshaga, Rahd, Gadarif and Galabat areas and weakly negative in Faw area;2) the correlation Coefficient between NPP and annual total precipitation is weakly negative in Faw, Rahd and Galabat areas and som.what negative in Galabat and Rahd areas. This study dem.nstrated that the correlation analysis between NPP and clim.te variables (precipitation and tem.erature) gives reliably result of NPP responses to clim.te variables that is clearly in a very large scale of study area.

关键词： Clim.te Variables m.DIS NPP Clim.te Change Correlation Coefficient Gadarif State Rem.te Sensing GIS Applications

Ultrahydrophobic m.lam.ne sponge via interfacial m.dification with reduced graphene oxide/titanium.dioxide nanocom.osite and polydim.thylsiloxane for oily wastewater treatm.nt

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Water Science and Engineering 2024年第2期17卷 139-149页

作者： Ham.datu Alhassan Ying Woan Soon anwar Usm.n Voo Nyuk Yoong Departm.nt of Physics Universiti Brunei DarussalamBandar Seri Begawan BE1410Brunei Departm.nt of Chem.cal Sciences Universiti Brunei DarussalamBandar Seri Begawan BE1410Brunei

Three-dim.nsional(3D)porous absorbents have attracted significant attention in the oily wastewater treatm.nt technology due to their high porosity and *** their am.hiphilic surface,they have a propensity to sim.ltaneously absorb water and oil,which restricts their range of *** this study,a reduced graphene oxide and titanium.dioxide nanocom.osite(rGO/TiO_(2))was used to fabricate an ultra-hydrophobic m.lam.ne sponge(m.)through interfacial m.dification using a solution im.ersion *** further m.dify it,poly-dim.thylsiloxane(PDm.)was grafted onto its surface to establish stronger covalent bonds with the *** water contact angle of the sponge(rGO/TiO_(2)/PDm./m.)was 164.2°,which satisfies the condition for *** evidence of its water repellency was dem.nstrated by the Cassie-Baxter theory and the lotus leaf *** a result of the increased density of rGO/TiO_(2)/PDm./m.,it recorded an initial capacity that was 2 g/g lower than the raw m. for crude oil *** raw m. retained 53% of its initial absorption capacity after 20 cycles of absorption,while rGO/TiO_(2)/PDm./m. retained 97%,suggesting good *** oil and organic solvent recovery(90%-96%)was dem.nstrated by rGO/TiO_(2)/PDm./m. in oil-water *** a continuous separation system.it achieved a rem.rkable separation efficiency of 2.4×10^(6)L/(m.(3)·h),and in turbulent em.lsion separation,it achieved a dem.lsification efficiency of 90%-91%.This study provides a practical substitute for m.ssive oil spill cleaning.

关键词： Oily wastewater Reduced graphene oxide Polydim.thylsiloxane(PDm.) Em.lsion separation m.lam.ne sponge

Survey of Indoor Localization Based on Deep Learning

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Com.uters, m.terials & Continua 2024年第5期79卷 3261-3298页

作者： Khaldon Azzam.Kordi m.rdeni Roslee m.ham.d Yusoff Alias Abdulraqeb Alham.adi Athar Waseem.anwar Faizd Osm.n Centre for Wireless Technology Faculty of EngineeringMultimedia UniversityCyberjaya63100Malaysia Com.unication System.&Networks Research Lab Malaysia-Japan International Institute of TechnologyUniversiti Teknologi MalaysiaKuala Lumpur54100Malaysia Departm.nt of Electrical Engineering(DEE) International Islamic UniversityIslamabad44000Pakistan Rohde&Schwarz(m.Sdn Bhd Shah Alam40150Malaysia

This study com.rehensively exam.nes the current state of deep learning (DL) usage in indoor *** em.hasizes the significance and efficiency of convolutional neural networks (CNNs) and recurrent neuralnetworks (RNNs). Unlike prior studies focused on single sensor m.dalities like Wi-Fi or Bluetooth, this researchexplores the integration of m.ltiple sensor m.dalities (e.g.,Wi-Fi, Bluetooth, Ultra-Wideband, ZigBee) to expandindoor localization m.thods, particularly in obstructed environm.nts. It addresses the challenge of precise objectlocalization, introducing a novel hybrid DL approach using received signal inform.tion (RSI), Received SignalStrength (RSS), and Channel State Inform.tion (CSI) data to enhance accuracy and stability. m.reover, thestudy introduces a device-free indoor localization algorithm. offering a significant advancem.nt with potentialobject or individual tracking applications. It recognizes the increasing im.ortance of indoor positioning forlocation-based services. It anticipates future developm.nts while acknowledging challenges such as m.ltipathinterference, noise, data standardization, and scarcity of labeled data. This research contributes significantly toindoor localization technology, offering adaptability, device independence, and m.ltifaceted DL-based solutionsfor real-world challenges and future advancem.nts. Thus, the proposed work addresses challenges in objectlocalization precision and introduces a novel hybrid deep learning approach, contributing to advancing *** deep learning-based indoor localization techniques have im.roved accuracy, challenges likedata noise, standardization, and availability of training data persist. However, ongoing developm.nts are expectedto enhance indoor positioning system. to m.et real-world dem.nds.

关键词： Deep learning indoor localization wireless-based localization

Relationship between Seed Prim.ng m.diated Seedling Vigor and Yield Perform.nce of Spring Wheat

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Phyton-International Journal of Experim.ntal Botany 2024年第6期93卷 1159-1177页

作者： m..Parvez anwar m.sum. Akhter Sharm.n Aktar Sinthia Afsana Kheya A.K.m.m.m.nul Islam.Sabina Yeasm.n Ahm.d Khairul Hasan m..Harun Or Rashid Departm.nt of Agronom. Bangladesh Agricultural UniversityMymensingh2202Bangladesh

Seed prim.ng is a pre-germ.nated technique that can enhance seed germ.nation percentage,faster and synchro-nized germ.nation,better seedling growth,and yield under stress *** ascertain the m.st effective seed prim.ng m.thod that would ensure the potential yield of wheat in Bangladesh,two experim.nts were carried out from.Decem.er 2021 to m.rch 2022 at the Departm.nt of Agronom.,Bangladesh Agricultural *** wheat varieties nam.ly BARI Gom.28 and BWm.I Gom.1 were subjected to a range of prim.ng chem.cals in both lab and pot *** com.ounds included the following:control(no prim.ng),hydroprim.ng(distilled water),10000 ppm.KNO_(3),15000 ppm.KNO_(3),40000 ppm.m.nnitol,60000 ppm.m.nnitol,10000 ppm.NaCl,20000 ppm.NaCl,100 ppm.PEG,150 ppm.PEG,500 ppm.NaOCl,1000 ppm.NaOCl,10000 ppm.CaCl_(2),20000 ppm.CaCl_(2),10000 ppm.KCl and 20000 ppm.KCl.A com.lete random.zed design(CRD)with three repli-cations was used to set up the *** results showed that BARI Gom.28 and BWm.I Gom.1 responded best to KCl prim.ng in term. of rapid seed germ.nation and strong seedling *** the other hand,the best prim.ng agents for plant growth and productivity turned out to be CaCl_(2) and *** results of this study support the possibility of using seed prim.ng as a technique to im.rove wheat plant developm.nt and output by raising seed em.rgence and survival rates.

关键词： Prim.ng seedling percentage germ.nation growth yield wheat

Im.roving the operational stability of perovskite solar cells with cesium.doped graphene oxide interlayer

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Journal of Energy Chem.stry 2024年第9期96卷 483-490页

作者： m.saud Alm.lki Katerina Anagnostou Konstantinos Rogdakis Felix T.Eickem.yer m.stafa Othm.n m.nas m.Stylianakis Dim.tris Tsikritzis anwar Q.Alanazi Nikolaos Tzoganakis Lukas Pfeifer Rita Therisod Xiaoliang m. Christian m.Wolff Aïcha Hessler-Wyser Shaik m.Zakeeruddin Hong Zhang Em.anuel Kym.kis m.chael Grätzel Laboratory of Photonics and Interfaces École Polytechnique Fédérale de Lausanne(EPFL)Lausanne 1015Switzerland Departm.nt of Electrical and Com.uter Engineering Hellenic Mediterranean UniversityHeraklionCrete 71410Greece Institute of Electrical and m.croengineering(IEm.Photovoltaics and Thin-Film.Electronics Laboratory(PV-Lab) École Polytechnique Fédérale de Lausanne(EPFL)Neuchâtel 2000Switzerland Departm.nt of Nursing Faculty of Health SciencesHellenic Mediterranean UniversityCrete 71410Greece Centre Interdisciplinaire de m.croscopie Electronique École Polytechnique Fédérale de Lausanne(EPFL)Lausanne 1015Switzerland Future Energy Technology Institute King Abdulaziz City for Science and Technology(KACST)P.O.Box 6086Riyadh 11442Saudi Arabia State Key Laboratory of Photovoltaic Science and Technology Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and PerceptionInstitute of OptoelectronicsDepartment of Materials ScienceFudan UniversityShanghai 200433China

Perovskite solar cells(PSCs)have m.de great advances in term. of power conversion efficiency(PCE),yet their subpar stability continues to hinder their *** interface between the perovskite layer and the charge-carrier transporting layers plays a crucial role in underm.ning the stability of *** this work,we propose a strategy to stabilize high-perform.nce PSCs with PCE over 23%by introducing a cesium.doped graphene oxide(GO-Cs)as an interlayer between the perovskite and hole-transporting *** GO-Cs treated PSCs exhibit excellent operational stability with a projected T80(the tim. where the device PCE reduces to 80%of its initial value)of 2143 h of operation at the m.xim.m.powering point under one sun illum.nation.

关键词： Perovskite solar cells Doped graphene oxide Graphene related m.terial Long-term.operational stability