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Single-atom catalysts for electrochemical N_(2)reduction to NH_(3)

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Rare Metals 2023年第4期42卷 1075-1097页

作者： Muhammad Saqlain lqbal Zhi-Bo Yao Yu-Kun Ruan Ramsha Iftikhar Lei-Duan Hao Alex WRobertson Syed Muhammad Imran Zhen-Yu Sun Department of Chemical Engineering COMSATS University IslamabadLahore 54000Pakistan State Key Laboratory of Organic-Inorganic Composites College of Chemical EngineeringBeijing University of Chemical TechnologyBeijing 100029China Department of Chemistry Government College University FaisalabadFaisalabad 38000Pakistan Department of Physics University of WarwickCoventry CV47ALUK

The increasing demand for clean energy and growing concerns regarding environmental sustainability have led to greater attention devoted toward the production of clean fuels via green *** this respect,ammonia is a green alternative to fossil fuels and can serve as a clean energy *** is now great interest in realizing the electrochemical reduction in atmospheric nitrogen(N_(2))for cheap,environmentally friendly and reliable ammonia(NH_(3))production ***,the robustness of the triple bond in N2 and the low efficiency of candidate catalysts limit the utility of this *** atom catalysts have been found to be more effective than nanoparticles due to their unique properties,and thus have been studied extensively for the nitrogen reduction *** this review,we have covered the recent advances in design and synthesis of noble metal and non-noble metal single atom catalysts for the electrochemical reduction in nitrogen during the years *** catalyst efficiencies,with reference to coordination preferences and theoretical studies have been ***,we also provide insights into the current challenges and some considerations for further future studies.

关键词： N_(2)reduction Single atom catalyst(SAC) Electrocatalysis NH_(3)

基于折叠过程的纺织结构材料外观折皱性的原位力学表征

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基于折叠过程的纺织结构材料外观折皱性的原位力学表征

中国力学大会-2021+1

作者：孙丰鑫肖彩勤 Mohammad Irfan iqbal 刘丽江南大学纤维体软材料研究室香港理工大学纺织与制衣系河海大学力学与材料学院

介绍/亮点Introduction/Highlight有序折叠(folding)与无序折皱(wrinkling)认为是探讨二维软材料的形态和结构的重要议题。织物作为一种典型的准二维柔性材料,在低应力作用下即可产生显著的大变形和粘塑性特征,使织物产生难以恢复的折皱...

介绍/亮点Introduction/Highlight有序折叠(folding)与无序折皱(wrinkling)认为是探讨二维软材料的形态和结构的重要议题。织物作为一种典型的准二维柔性材料,在低应力作用下即可产生显著的大变形和粘塑性特征,使织物产生难以恢复的折皱,影响织物的外观和性能。特别是近年来织物在纺织基医用材料和柔性电子器件等领域的应用,对纺织结构材料外观折皱性能的有效表征与调控成为亟待解决的问题。因此,我们提出通过构造织物有序折叠为主的多重连续变形,实施纺织结构材料无序折皱性能的原位组合力学表征。

关键词：

氢氧基（OH）对CoFe2O4纳米颗粒的结构和磁性能的影响

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氢氧基（OH）对CoFe2O4纳米颗粒的结构和磁性能的影响

中国化学会第27届学术年会

作者：牛培利 Javed iqbal 吴章奔于荣海清华大学材料系

＜正＞在尖晶石铁氧体中,钴铁氧体CoFe2O4以其稳定的化学性质,温和的饱和磁场,以及较大的矫顽力使其在永磁体、磁记录和磁性液体方面有广阔的应用前景。采用化学共沉淀

关键词：氢氧基钴铁氧体纳米颗粒磁性能

家禽红螨(鸡皮刺螨)的杀螨剂抗药性及其管理方法

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养禽与禽病防治 2024年第2期 18-28页

作者： R.Z.Abbas D.D.Colwell Z.iqbal A.Khan 刘红(校对) Department of Parasitology University of AgricultureFaisalabad-38040Pakistan Livestock Parasitology Agriculture and Agri-Food CanadaLethbridge Research Centre54031st Ave.S.LethbridgeAB.T1J 4B1Canada Department of Pathology University of AgricultureFaisalabad-38040Pakistan 默沙东动物保健品(上海)有限公司

家禽红螨(鸡皮刺螨)是一种危害养鸡业的吸血害虫,是世界许多地方家禽生产中的重要问题。尽管免疫学、生物技术和遗传学方法取得了进展,但控制家禽红螨却通常仍依赖于合成杀螨剂。随着这些化合物的反复长期使用导致了家禽螨虫抗药性种群... 详细信息

家禽红螨(鸡皮刺螨)是一种危害养鸡业的吸血害虫,是世界许多地方家禽生产中的重要问题。尽管免疫学、生物技术和遗传学方法取得了进展,但控制家禽红螨却通常仍依赖于合成杀螨剂。随着这些化合物的反复长期使用导致了家禽螨虫抗药性种群的形成,可用的有效杀螨剂正在迅速减少。因此需要不断研制新型的化学杀螨剂来取代旧的杀螨剂,但新型杀螨剂的开发和注册是一个漫长且昂贵的过程,故保持和维持现有杀螨剂的有效性至关重要。本综述分为2部分:第一部分提供了对鸡皮刺螨杀螨剂抗药性的基本认识;第二部分提供了关于保持现有杀螨剂有效性的抗药性管理的详细信息。

关键词：家禽红螨杀螨剂杀螨剂抗药性抗药性管理

等离子体改性聚乙烯纳米线阵列表面的稳定超疏水性研究

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等离子体改性聚乙烯纳米线阵列表面的稳定超疏水性研究

2015年全国高分子学术论文报告会

作者：李昱鹏王嘉雨 Muzammil iqbal 雷明凯大连理工大学材料科学与工程学院表面工程研究室

采用射频容性耦合氧等离子体改性聚乙烯表面,射频等离子体功率200 W、处理时间10-60 min,获得了具有纳米线结构的聚乙烯表面。随等离子体改性时间纳米线的长径比逐渐增大,具有大长径比的纳米线聚集成束状,保持垂直于基体排列,形成纳米... 详细信息

采用射频容性耦合氧等离子体改性聚乙烯表面,射频等离子体功率200 W、处理时间10-60 min,获得了具有纳米线结构的聚乙烯表面。随等离子体改性时间纳米线的长径比逐渐增大,具有大长径比的纳米线聚集成束状,保持垂直于基体排列,形成纳米线阵列。等离子体聚合低表面能八氟环丁烷等离子体聚合物薄膜后,具有不同长径比纳米线的聚乙烯表面均表现出接触角高于150o水、滚动角低于5o的超疏水性。采用高速摄像相机,调节水滴距聚乙烯表面的高度,研究了自由滴落的水滴与超疏水性聚乙烯表面的碰撞动力学行为。经60 min射频氧等离子体改性并沉积低表面能氟碳膜的聚乙烯表面,在高韦伯数130、碰撞速度2.9 m/s下,展现了很好的抗水滴撞击能力,保持了稳定的非粘附超疏水态。

关键词：等离子体表面改性技术聚乙烯纳米线阵列超疏水性碰撞动力学

氢氧基(OH)对CoFe2O4纳米颗粒的结构和磁性能的影响

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氢氧基(OH)对CoFe2O4纳米颗粒的结构和磁性能的影响

2010年第二届中国科学院博士后学术年会暨高新技术前沿与发展学术会议

作者：牛培利 Javed iqbal 吴章奔于荣海清华大学材料系

采用化学共沉淀方法制备了CoFeO纳米颗粒,研究了不同热处理工艺对CoFeO纳米颗粒的结构和磁性能的影响,揭示了氢氧基在其结构和磁性能中的作用。结果显示,所有样品具有单一的尖晶石铁氧体结构,并具有典型的铁磁性特征,其晶粒尺寸的大小... 详细信息

采用化学共沉淀方法制备了CoFeO纳米颗粒,研究了不同热处理工艺对CoFeO纳米颗粒的结构和磁性能的影响,揭示了氢氧基在其结构和磁性能中的作用。结果显示,所有样品具有单一的尖晶石铁氧体结构,并具有典型的铁磁性特征,其晶粒尺寸的大小与氢氧基的存在与热处理温度有关,从而使其磁性能发生变化。

关键词：氢氧基钴铁氧体纳米颗粒磁性能

电/热/气多能转换的可逆固体氧化物燃料电池信息物理融合建模与仿真

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电网技术 2018年第11期42卷 3535-3542页

作者：王雅倩任娜徐宗磊高山华秀文丁涛别朝红张兄文热流科学与工程教育部重点实验室(西安交通大学) 陕西省西安市710049 电力设备电气绝缘国家重点实验室(西安交通大学) 陕西省西安市710049

信息物理融合是能源互联网的重要特征,是能源互联网能量管理系统亟需解决的关键基础问题之一。选取涵盖电、热、气三种能量流的可逆固体氧化物燃料电池（reversible solid oxide fuel cell,RSOFC）作为典型能量节点开展信息物理融合建... 详细信息

信息物理融合是能源互联网的重要特征,是能源互联网能量管理系统亟需解决的关键基础问题之一。选取涵盖电、热、气三种能量流的可逆固体氧化物燃料电池（reversible solid oxide fuel cell,RSOFC）作为典型能量节点开展信息物理融合建模研究,建立了基于质量守恒和能量守恒的RSOFC发电和制氢2种工作模式的电化学过程物理模型,利用状态机达到电池运行过程中2种工作状态的转换,采用时序分析方法研究可逆固体氧化物燃料电池节点信息系统与物理系统之间的信号交互,构建能量节点的信息物理融合动态模型,同时对节点内部的电、热、气不同能流形式进行归化统一表征,明确节点的多能转换关系。利用所建立的模型对不同调度时间步长的2个案例进行仿真分析,结果表明构建的RSOFC信息物理融合模型能够在短时间内对调度信号作出准确响应,并使燃料利用率或蒸汽利用率以及电堆温度保持在预设的合理范围之内,验证了所建模型对能量节点的调度、控制和交互功能。

关键词：可逆固体氧化物燃料电池信息物理系统多能转换

胃内折叠缝合的术式:一项环形折叠式与螺旋折叠式对比

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世界核心医学期刊文摘（胃肠病学分册） 2006年第4期2卷 47-48页

作者： Davis R.E iqbal A Gerhardt J.D. C.J. Filipi 张欣 Department of Surgery Creighton University Medical Center 601 N. 30th Street Omaha NE 68131 Un ited StatesDr.

Goals: To determine the long-term efficacy of endoluminal gastroplication (ELGP) and the most effective plication configuration. Background: Endoluminal gast roplication is an intriguing therapy for gastroesophageal reflux disease. We con ducted a retrospective review of a prospective experience of patient cohorts com paring outcomes of the circumferential and helical plication patterns. Study: Tw enty patients underwent ELGP, with 9 receiving the circumferential (Group 1) and 11 the helical pattern (Group 2). Manometry, endoscopy, and 24-hour pH monitor ing were performed at baseline and at 6 months. Symptom scores and medication us age were assessed at baseline, 1, 3, 6, 12, and 18months. Results: Both groups d id not differ significantly from each other with respect to symptom improvement, medication usage, or other variables measured. At 6 months, symptom scores, his tamine-2 receptor antagonist (H2RA), proton pump inhibitor usage,and hernia siz e decreased significantly. No other parameter showed a significant change. At th e 18-month follow-up, symptom scores and H2RA usage decreased significantly. C onclusion: ELGP improves heartburn and regurgitation scores at 18 months. Our st udy suggests that there is no benefit to additional placations when using the he lical pattern.

关键词：折叠缝合折叠术缝合术预后结果胃食管反流药物用量压力测定治疗作用胃灼热药物治疗

Multivariate Based Variability within Diverse Indian Mustard (<i>Brassica juncea</i>L.) Genotypes

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Open Journal of Genetics 2017年第2期7卷 69-83页

作者： Noor Saleem Sohail Ahmad Jan Muahmmad Jawaad Atif Haris Khurshid Shahid Ali Khan Mohib Abdullah Muhammad Jahanzaib Humair Ahmed Syed Farman Ullah Azhar iqbal Sameena Naqi Muhammad Ilyas Naushad Ali Malik Ashiq Rabbani The University of Haripur KPK Pakistan Plant Genetic Resources Institute (PGRI) National Agricultural Research Centre (NARC) Islamabad Pakistan Department of Biotechnology Quaid-i-Azam University Islamabad Pakistan Oilseeds Research Program NARC Islamabad Pakistan School of Crop Production Technology Suranaree University of Technology Nakhon Ratchasima Thailand Land Resources Research Institute NARC Islamabad Pakistan Department of Plant Breeding and Genetics PMAS-Arid Agriculture University Rawalpindi Pakistan

Indian mustard (Brassica juncea L.) germplasm consisting 167 accessions including one check cultivar was evaluated for qualitative and quantitative traits. The present study was conducted to investigate genetic diversity and correlation among studied genotypes of B. juncea L. based on agro-morphological at NARC, Islamabad, Pakistan. To investigate the genetic diversity based on morphological characters, data was recorded on 20 quantitative and 12 qualitative traits. The calculated data was analyzed through two complementary methods, i.e. PCA (Principal Component Analysis) and cluster analysis. Among all the studied cultivars, significant diversity was recorded for different agro-morphological characters. Among all the parameters, maximum variance was recorded for pod shattering (427.2) followed by plant height (345.6), days to 100% flowering (336.2) and main raceme length (210.0). Among all the characters, the greatest and highly significant association (0.99) was found between days to maturity 50% and days to maturity 100% followed by correlation (0.86) among days to flowering 50% and days to flowering 100%, correlation value (0.71) was calculated among leaf length and leaf width. Using cluster analysis all the genotypes were divided into five major groups. It was observed that 7 out of 20 principal components with an Eigen value of ≥1.0 calculated for 73.92% of the total diversity observed between 167 accessions of Indian mustard (B. juncea L.). The contribution of first three PCs in the total PCs was 23.25, 12.87 and 11.24, respectively. Among all the investigated accessions two genotypes 26,813 and 26,817 showed great potential for seeds/silique, 1000-seed weight and seed yield/plant, respectively, so these genotypes are recommended for future breeding programs for achieving promising results.

关键词： Genetic Diversity Agro-Morphology Brassica juncea L. PCA Analysis