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Evolution of plasma parameters in an Ar-N2/He inductive plasma source with magnetic pole enhancement

Plasma Science and Technology 2017年第2期19卷 34-42页

作者： maria YOUNUS N U REHmAN m SHAFIQ m naeem m ZAKA-UL-ISLAm m ZAKAULLAH Department of Physics Plasma Physics LaboratoryQuaid-i-Azam University45320 IslamabadPakistan Plasma Physics Laboratory Department of PhysicsCOMSATS Institute of Information Technology44000 IslamabadPakistan Department of Physics Faculty of ScienceJazan University114 JazanSaudi Arabia

magnetic pole enhanced inductively coupled plasmas （maPE-ICPs） are a promising source for plasma-based etching and have a wide range of material processing applications. In the present study Langmuir probe and optical emission spectroscopy were used to monitor the evolution of plasma parameters in a maPE-ICP Ar-Na/He mixture plasma. Electron density （ne） and temperature （Te）, excitation temperature （Texc）, plasma potential （Vp）, skin depth （6） and the evolution of the electron energy probability function （EEPF） are reported as a function of radiofrequency （RF） power, pressure and argon concentration in the mixture. It is observed that ne increases while Te decreases with increase in RF power and argon concentration in the mixture. The emission intensity of the argon line at 750.4 nm is also used to monitor the variation of the ‘high-energy tail＇ of the EEPF with RF power and gas pressure. The EEPF has a ‘bi-maxwellian＇ distribution at low RF powers and higher pressure in a pure N2 discharge. However, it evolves into a ‘maxwellian＇ distribution at RF powers greater than 70 W for pure N2, and at 50 W for higher argon concentrations in the mixture. The effect of argon concentration on the temperatures of two electron groups in the ‘bi-maxwellian＇ EEPF is examined. The temperature of the low-energy electron group TL shows a decreasing trend with argon addition until the ‘thermalization＇ of the two temperatures occurs, while the temperature of high-energy electrons Ta decreases continuously.

关键词： maPE-ICP Langmuir probe OES EEPF

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Effect of particle size distribution on magnetic behavior of nanoparticles with uniaxial anisotropy

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Chinese Physics B 2018年第9期27卷 572-576页

作者： S Rizwan Ali Farah Naz Humaira Akber m naeem S Imran Ali S Abdul Basit m Sarim Sadaf Qaseem Department of Physics Federal Urdu University of Arts Science and Technology Department of Applied Chemistry and Chemical Technology University of Karachi Department of Computer Science Federal Urdu University of Arts Science and Technology

The effect of particle size distribution on the field and temperature dependence of the hysteresis loop features like coercivity（HC）, remanence（mR）, and blocking temperature（TB） is simulated for an ensemble of single domain ferromagnetic nanoparticles with uniaxial anisotropy. Our simulations are based on the two-state model for T 〈 TB and the metropolis monte-Carlo method for T 〉 TB. It is found that the increase in the grain size significantly enhances HC and TB. The presence of interparticle exchange interaction in the system suppresses HC but causes mRto significantly *** results show that the parameters associated with the particle size distribution（D（d,δ）） such as the mean particle size d and standard-deviation δ play key roles in the magnetic behavior of the system.

关键词： magnetic nanoparticles monte Carlo simulations size distribution interparticle interaction hysteresis

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Designing architectural continuity in a historic urban quarter of Dinajpur, Bangladesh

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Frontiers of Architectural Research 2023年第5期12卷 803-819页

作者： Abu Towab md Shahriar S.m.naeem Hossain mithun Dipa Saha Sazdik Ahmed Department of Architecture Hajee Mohammad Danesh Science and Technology UniversityDinajpur5200Bangladesh Department of Architecture Shahjalal University of Science and TechnologySylhet-3114Bangladesh

This research paper examines the morphological transformation of the historic urban quarters(HUQ)adjacent to maldah Patti in Dinajpur and provides guidelines for maintaining architectural continuity in new *** study employed a mixed-methods approach,including historical research,physical surveys,user interviews,design ethnography,and participant *** identified factors contributing to architectural degradation in HUQ adjacent to maldah Patti in Dinajpur include economy-focused considerations,lack of awareness,municipal regulations,community sense,owner preferences,bureaucracy,and the architect’s lack of *** study identified physical characteristics of historical structures in the HUQ,including location,ownership,present use,facade emphasis,style,and pedestrian *** study recommends balancing historical continuity and socioeconomic development,designing elements to evoke historical ambience,acknowledging functionality and spatial constraints,ensuring client participation,paying attention to detail,taking inspiration from historic structures,deriving vertical and horizontal emphasis in the fac¸ade,facing trade-offs and compromises,giving importance to communication,and paying attention to security issues to achieve architectural continuity in HUQ.

关键词： Architectural continuity Historicurban quarter morphological transformation Physical characteristics Urbanfabric

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Issues in Global Software Development: A Critical Review

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Journal of Software Engineering and Applications 2011年第10期4卷 590-595页

作者： Sami ul Haq mushtaq Raza Asraf Zia m. naeem Ahmed Khan 不详

A number of companies have employed Global Software Development (GSD) methodology as a useful tool for their software development practices. GSD is a contractual relationship between client and vendor organizations in which a client outsources all or some part of its software development activities to a vendor. The vendor in return provides the agreed services in lieu of certain amount of remuneration. The main reasons to select the GSD technique include reduced cost, faster development and access to skilled manpower. Though GSD is emerging as an effective technique, but it suffers from many challenges like poor communication, lack of trust and coordination. These challenges pose serious risk to the smooth execution of the GSD projects. In this paper, we present a comparative study on GSD to highlight its merits and demerits. Our findings reveal that much of the research in this area has been focused on addressing issues faced by client organizations, however, vendor side in the GSD relationship is much ignored due to which this area is still immature;and, hence, further research work is required to be undertaken to address the issues faced by the vendor organizations.

关键词： Communication Co-Ordination and Trust Global Software Development (GSD) Distributed Software Development (DSD)

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大麦对除草剂丙酯草醚的耐性机制探讨

大麦对除草剂丙酯草醚的耐性机制探讨

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2009中国作物学会学术年会

作者：郭翔张帆金宗来 m.S.naeem 周伟军浙江大学作物科学研究所

丙酯草醚是我国具有自主知识产权的农药新品种,能有效防除油菜田主要单、双子叶杂草。看麦娘、牛繁缕等多种油菜田杂草同时也是严重危害麦田的主要杂草,丙酯草醚对麦田杂草防除

关键词：大麦除草剂丙酯草醚耐性机制生理生化电子显微技术抗逆生理

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先导类油菜田除草剂丙酯草醚的作用机理研究

先导类油菜田除草剂丙酯草醚的作用机理研究

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第九届全国杂草科学大会

作者：张帆田甜吴灵通金宗来 m.S.naeem 周伟军浙江大学作物科学研究所

本研究以甘蓝型油菜品种浙双758和大麦品种黄青裸等为主要材料,采用生理生化分析方法及显微技术研究丙酯草醚的作用机理及其胁迫下两种作物的耐性差异机制。研究结果表明:丙酯草醚处理对离体ALS酶活力几乎无抑制效果,但在活体条件下对AL...

本研究以甘蓝型油菜品种浙双758和大麦品种黄青裸等为主要材料,采用生理生化分析方法及显微技术研究丙酯草醚的作用机理及其胁迫下两种作物的耐性差异机制。研究结果表明:丙酯草醚处理对离体ALS酶活力几乎无抑制效果,但在活体条件下对ALS酶活力有明显的抑制作用,对单双子叶作物及杂草活体ALS酶活力的抑制度为大麦>看麦娘>牛繁缕>油菜;100mg/L丙酯草醚处理显著抑制发芽期油菜和大麦幼苗的生长发育尤其是根系伸长和发育,处理导致根尖有丝分裂指数下降,影响根尖细胞及细胞器(如液泡、质体、叶绿体等)的发育;此外,丙酯草醚处理导致根细胞膜透性增大并抑制根系活力和根尖细胞活性,处理破坏线粒体膜并引起细胞中微粒体数量的增加;5叶期油菜的耐性高于大麦,100mg/L丙酯草醚对油菜生物量积累无显著影响,但显著影响大麦抗氧化系统,并导致大麦光合系统的损伤(NPQ受抑制和SPAD值下降),从而影响其光合作用(Pn减小),最终抑制其生物量积累。因此,丙酯草醚在植物体内可通过抑制ALS酶活力,抑制有丝分裂和影响细胞发育从而影响植株生长发育;丙酯草醚需通过在植株体内代谢活化发挥抑制作用,可能的活化部位和作用位点分别为微粒体和线粒体,油菜对该除草剂的耐性与其抗氧化系统的代谢解毒及光合系统受抑制较小有关。

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Effect of aspirin on glucose-D transport in intestine of rat

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海南医学院学报 2009年第2期15卷 107-110页

作者： mazhar mushtaq Farah Deeba Khan m.naeem Akhtar Saghir Ahmad Jafri mehboob Bari Biochemistry Dept Medical FacultyUniversity of Lahore Institute of molecular Biology and Biotechnology University of Lahore

Objective: The present study was designed to evaluate the effect a commonly prescribed Non Steroidal Anti Inflammatory Drug(NSAID) *** on brush border membrane in terms of changes in the intestinal transport level of glucose which is monosaccharide with absolute requirement in the body and hence its absorption is directly proportional on the morphology of the intestinal ***: Albino rats(Rattus Norvegicus) were divided into two different groups,Group I(Control),Group II(aspirin-treated,50 mg aspirin/kg of body weight).The treatment was continued for 28 *** the 29th day after overnight fasting,intestine was removed from animals of both *** in transport of glucose-D in intestine were ***: The results indicated a significant decrease in the transport of glucose-D in aspirin treated group as compared to the control ***: Cautious use of NSAID is recommended in commonly observed symptom such as headache and to those patients who are given as a prophylaxis for thrombosis.

关键词：阿司匹林葡萄糖传递过程小肠药物分析

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甘肃省熊蜂分布特征及其影响因素

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中国蜂业 2024年第8期75卷 13-13页

作者：安建东(编译) 中国农业科学院蜜蜂研究所北京100193

近日,中国农业科学院蜜蜂研究所联合曲靖师范学院等单位科研人员发现甘肃省熊蜂呈现四大生物地理区系,净初级生产力是影响熊蜂多样性分布的最主要因素。该研究成果在线发表在《昆虫(Insects)》上。熊蜂是众多植物的传粉者,在陆地生态系... 详细信息

近日,中国农业科学院蜜蜂研究所联合曲靖师范学院等单位科研人员发现甘肃省熊蜂呈现四大生物地理区系,净初级生产力是影响熊蜂多样性分布的最主要因素。该研究成果在线发表在《昆虫(Insects)》上。熊蜂是众多植物的传粉者,在陆地生态系统中发挥着十分重要的作用。明确影响熊蜂分布的因素对于熊蜂多样性保护至关重要。

关键词：中国农业科学院蜜蜂研究所熊蜂曲靖师范学院科研人员多样性保护净初级生产力陆地生态系统

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应用LI-RADS v2018评估除肝细胞癌（HCC）以外的原发性肝癌：LI-RADS目标人群与无LI-RADS定义HCC危险因素病人的比较研究

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国际医学放射学杂志 2020年第2期 250-250页

作者： T.J.Fraum R.Cannella D.R.Ludwig R.Tsai m.naeem m.LeBlanc 胡现宁 mallinckrodt Institute of Radiology Washington University Schoolof Medicine

目的确定高风险(RF+)与非高风险(RF-)病人之间肝细胞癌(PLC)之外的非肝细胞肝癌(non-HCCPLC)LI-RADS影像征象是否存在差异,并比较RF+和RF-人群被误

关键词： HCC 肝细胞癌 LI-RADS LI-RADS v2018 原发性肝癌目标人群比较研究

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Semiquantitative determination of some nitrogen compounds by the formation of charge-transfer complexes of diphenylamine with p-dimethylaminobenzaldehyde by capillary solid-state spot-tests

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Chinese Chemical Letters 2010年第6期21卷 720-724页

作者： Ishaat m.Khan Ahmad naeem Afaq Ahmad Department of Chemistry Faculty of Science Aligarh Muslim UniversityAligarh 202002UPIndia Department of chemistry Shibli National CollegeAzamgarh 276002UPIndia

The interactions of p-dimethylaminobenzaldehyde(p-DAB) and potassium hydrogen sulphate(PHS) in equimolar ratio with various concentration of diphenylamine(solid test material) have been investigated by capillary spot-tests technique in order to investigate the effect of temperature and volume of material in *** formation of the colored boundary in the capillary is taken for the detection of organic compounds by spot-tests at different temperature and volume of solid test material.

关键词： p-DAB Capillary spot-tests Solid material Potassium hydrogen sulphate

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