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| 1 | 滇南喀斯特地区灌木群落和人工林土壤元素化学计量特征显示文摘在云南喀斯特地区,为提升退化灌木群落的生态系统服务功能,营造了不同树种的人工林分。这些人工林分如何影响土壤化学性质还未得到充分认识。以云南泸西县灌木群落及三种常见人工林(云南松(Pinus yunnanensis)、赤杨(Alnus japonica)和侧柏(Platycladus orientalis))土壤为研究对象探讨喀斯特地区在人工林建造后土壤的13种元素全量、可利用性含量和化学计量学特征变异格局,为喀斯特石漠化治理提供理论依据。结果表明,1)基于判别分析,四种群落土壤化学计量特征可以显著区分。土壤Fe、P、K、Mn全量及交换性Ca、交换性Mg和NH4^+-N对区分四种群落土壤贡献最大。2)四种群落之间相比,侧柏林土壤C、N、S、Na全量和NO3^--N含量均低于其他三种群落,土壤肥力较低;赤杨林铵态氮含量最高;云南松林有效Fe、有效Cu含量最高。而且,四个群落土壤全量C/N、C/K比值存在显著差异性。3)根据四种群落13种土壤元素和pH值相关性分析,35对元素具有显著相关性,占所有元素对数的38.5%,说明该地土壤元素积累的相互依赖性。与灌木群落相比,人工林土壤元素全量和可利用性含量相关性比例均更高。这些研究结果对今后基于适地适树人工林营造、生态系统服务功能提升和经营利用,均具有重要指导意义。 | 陶慧敏 孙宁骁 温家豪 Umair Muhammad 袁俊 杜红梅 刘春江 | 2019 | 生态学报2019,39,24: | 8 |
| 2 | Ultrafast Form Ⅱ to Ⅰ Transition of Isotactic Polybutene-1显示文摘Isotactic polybutene-1 (iPB-1) is a semi-crystalline polymer with polymorph and puzzled structural transitions. The stable form I of iPB-1 with excellent physical and mechanical properties can hardly be obtained directly from the melt;instead, metastable form II will spontaneously and slowly transform into form I. Bypassing the unstable form II formation is of great significance in polymer processing, which inspires extensive research on seeking the pathways to direct formation of form I. Methods for accelerating form II to I transition are another main focus in terms of practical approach for directly obtaining form I. Taking advantage of the solvent, an ultrafast transition of iPB-1 from form II to I within minutes has been achieved at room temperature. Such an ultrafast transition is detected after treating with dichloromethane (DCM) at 30 ℃, though the framework of isothermally crystalized iPB-1 spherulite morphology could not be fully modified. The ultrafast II-I transition of iPB-1 is attributed to the solvent-induced packed-mesophase and temperature-selected chain conformation adjustment.This ultrafast transition would shed light on understanding the mechanisms of polymorphic transitions in iPB-1. | Xing Qiu Umair Azhar Jing-Qing Li Ding-Hai Huang Shi-Chun Jiang | 2019 | Chinese Journal of Polymer Science2019,37,7: | 6 |
| 3 | NS1 antigen: A new beam of light in the early diagnosis of dengue infection显示文摘Objective: To evaluate NS1 antigen detection ELISA for the early laboratory diagnosis of dengue virus infection. Methods: The present study was conducted to evaluate the overall positivity of NS1 antigen detection ELISA and its comparison with viral RNA detection via real time PCR and Ig M antibodies detection by ELISA. Results: A total of 1 270 serum samples were tested 86%(1 097/1 270) were detected positive by one or more than one diagnostic test. Out of 1 270, 64%(807/1 270) were positive by NS1 ELISA and 52%(662/1 270), 51%(646/1 270) were positive by real-time RT-PCR and Ig M ELISA respectively.Conclusions: NS1 antigen detection ELISA is highly suitable diagnostic tools and it also has great value for use in outbreak and epidemic situation. | Muhammad Suleman Rani Faryal Muhammad Masroor Alam Salmaan Sharif Shahzad Shaukat Uzma Bashir Aamir Adnan Khurshid Mehar Angez Massab Umair Mian Muhammad Sufian Yasir Arshad Ghulam Mujtaba Syed Sohail Zahoor Zaidi | 2016 | Asian Pacific Journal of Tropical Medicine2016,9,12: | 6 |
| 4 | Design and Optimization of Segmented PM Consequent Pole Hybrid Excited Flux Switching Machine for EV/HEV Application显示文摘Hybrid Excited Flux Switching Machines(HEFSMs)unique feature of high torque density(T_(den))of Permanent Magnet(PM)machines and flux regulation capability of wound field excitation machines.Due to aforesaid unique features,stator active HEFSMs are preferred for EV/HEV applications.In this paper a new Segmented PM Consequent Pole HE-FSM(SPMCPHEFSM)with flux bridge is proposed for EV/HEV.The developed SPMCPHEFSM exhibits improved flux modulation and flux regulation capability at reduced PM usage(suppressed PM volume by 46.52%and PM cost by 46.48%)and eliminating stator leakage flux.First,SPMCPHEFSM is geometric optimized(GO)for investigating influence of leading design with key performance indicators such as flux linkage(Ф_(pp)),average torque(T_(avg)),cogging torque(T_(cog)),T_(den),average power(P_(avg))and power density(P_(den))and then proceeded optimized model to structure modification for optimal stator design and position of field excitation coils(FEC).Comprehensive performance analysis reveals that the developed SPMCPHEFSM show improvedФ_(pp)maximum up to 9.11%,improved T_(avg)maximum up to 23.63%,truncate T_(cog)up to 18.9%whereas T_(den)and P_(den)are boost up to 23.55%and 89.72%respectively. | Wasiq Ullah Faisal Khan Muhammad Umair | 2020 | CES Transactions on Electrical Machines and Systems2020,4,3: | 6 |
| 5 | 基于单摄像机空位检测技术的全天停车需求分析显示文摘为了给交通管理和决策制定提供依据,已有很多针对停车需求的研究,其中对停车场实际数据的统计分析尤为重要.本研究借助单摄像机空位检测系统,获取了位于阿布扎比市区的通用路外停车场全天的停车状况.具体检测方法为,根据停车位的视觉特征并利用图像识别来定义车位的占用或空闲状态.本文的空位检测系统具备两个突出优点:首先,和其他方法相比,它需要的像素点更少,单个摄像机能覆盖超过150个停车位;其次,无论白天还是夜间,系统的工作性能受光照条件的影响很小.实验结果表明,在研究时段内,占用车位的检测精度为99.9%,空闲车位的检测精度为97.9%.此外,当停车场接近饱和时,由于利用率不能包含没有获得停车位的驾驶员的停车需求,本文基于此问题提出了一种更加准确的描述方法. | JERMSURAWONG Jermsak AHSAN Umair HAIDAR Abdulhamid DONG Haiwei MAVRIDIS Nikolaos | 2014 | 交通运输系统工程与信息2014,14,2: | 6 |
| 6 | Nitrogen Deep Placement Combined with Straw Mulch Cultivation Enhances Physiological Traits,Grain Yield and Nitrogen Use Efficiency in Mechanical Pot-Seedling Transplanting Rice显示文摘To assess the effects of straw return coupled with deep nitrogen(N)fertilization on grain yield and N use efficiency(NUE)in mechanical pot-seedling transplanting(MPST)rice,the seedlings of two rice cultivars,i.e.,Yuxiangyouzhan and Wufengyou 615 transplanted by MPST were applied with N fertilizer at 150 kg/hm2 and straw return at 6 t/hm2 in early seasons of 2019 and 2020.The experiment comprised of following treatments:CK(no fertilizer and no straw return),MDS(deep N fertilization and straw return),MBS(broadcasting fertilizer and straw return),MD(deep N fertilization without straw return),MB(broadcasting fertilizer without straw return).Results depicted that the MDS treatment significantly increased the rice yield by 41.69%-72.22%due to total above-ground biomass,leaf area index and photosynthesis increased by 54.70%-55.80%,38.52%-52.17%and 17.89%-28.40%,respectively,compared to the MB treatment.In addition,the MDS treatment enhanced the total N accumulation by 37.74%-43.69%,N recovery efficiency by 141.45%-164.65%,N agronomic efficiency by 121.76%-134.19%,nitrate reductase by 46.46%-60.86%and glutamine synthetase by 23.56%-31.02%,compared to the MB treatment.The average grain yield and NUE in both years for Yuxiangyouzhan were higher in the MDS treatment than in the MD treatment.Hence,deep N fertilization combined with straw return can be an innovative technique with improved grain yield and NUE in MPST in South China. | LI Lin ZHANG Zheng TIAN Hua Umair ASHRAF Yousef Alhaj HAMOUD Al Aasmi ALAA TANG Xiangru DUAN Meiyang WANG Zaiman PAN Shenggang | 2022 | Rice science2022,29,1: | 5 |
| 7 | 滇南喀斯特地区不同季节土壤和灌木叶片化学计量特征及对水分添加的响应显示文摘干旱是影响南方喀斯特地区植物生长的重要限制因子,气候变化会影响该地区的降水量和分布格局。研究该地区土壤和植物化学计量特征及其水分响应格局,具有重要意义。自2017年4月开始,在云南建水喀斯特植物群落进行加水试验,2018年4月(旱季)和8月(雨季)分别采集土壤和优势灌木鞍叶羊蹄甲(Bauhinia brachycarpa)和假虎刺(Carissa spinarum)叶片样品,测定碳、氢、氮、磷、硫、钾、钙、镁、铝、钠、铁、锰、锌、铜14种元素含量。结果表明,水分添加影响了表层土壤中碳、氮、钠的含量,相比于旱季,雨季土壤中钠和硫含量明显减少,其余土壤元素在水分添加和季节变化下并未表现出明显差异。土壤水分含量的增加使得鞍叶羊蹄甲和假虎刺叶片中钾含量下降,钙含量上升。在水分条件变化下,两种植物叶元素含量的稳定性与植物中元素的含量有关,含量越接近极大值(基本元素碳、氢、氮等)或极小值(微量元素铜、锌等)的元素其变异系数越小(越稳定),两种植物中含量接近于1 mg·g-1的元素磷、硫、镁的变异系数最高。在土壤水分条件变化下,假虎刺中碳、氮、磷等大量元素含量的稳定性显著高于鞍叶羊蹄甲。降水变化和水分添加导致的土壤水分变化,对滇南喀斯特地区土壤和植物中不同元素含量的影响不同,这些结果将为该地区的土壤、植被修复和管理提供科学参考。 | 敬洪霞 孙宁骁 Muhammad UMAIR 刘春江 杜红梅 | 2020 | 植物生态学报2020,44,1: | 5 |
| 8 | 基于机器学习的地球化学采样下伏基岩类型判别-以青海省察汗乌苏河地区为例显示文摘基岩类型的判别是地质调查中十分重要的内容,也是开展油气勘探和矿产勘探的重要基础工作。本文采用决策树、随机森林、XGBoost、LightGBM四种机器学习的方法,实现了基于地球化学采样数据的基岩类型判别。以15种地球化学元素含量及其局部空间自相关莫兰指数和地形因子为特征,训练了不同的分类模型,通过10折交叉验证对模型做出了验证与评价。结果表明,集成学习算法的分类效果优于决策树,其中XGBoost和LightGBM表现最好,对复杂的高维空间数据和不平衡数据有较强的处理能力。此外,本文通过构建的分类模型成功地实现了对第四系沉积物下伏基岩类型的预测,Voronoi图可视化结果表明,预测基岩类型与其周围真实基岩类型基本吻合,能初步划出基岩类型的分界线。因此,利用地球化学采样数据来判别其下伏基岩类型是可行的。 | 张宝一 李曼懿 李伟霞 蒋正文 Umair KHAN 王丽芳 汪凡云 | 2021 | Journal of Central South University2021,28,5: | 5 |
| 9 | 彩色多普勒超声对大动脉炎患者颈动脉窃血的诊断价值显示文摘目的探讨彩色多普勒超声对大动脉炎患者颈动脉窃血的诊断价值及其血流动力学特点。方法19例伴有颈动脉窃血的大动脉炎患者作为病例组,19例健康志愿者作为对照组,超声检测双侧颈总动脉(CCA)、颈内动脉(ICA)、颈外动脉(ECA)及椎动脉(VA)。记录各动脉的血流方向、频谱形态、峰值血流速度(PSV)及椎动脉的内径。结果颈动脉窃血时同侧ICA与ECA的血流方向相反,ICA的血液流向头侧,ECA的血液流向尾侧;ICA呈现低频低阻血流频谱,严重时呈静脉样频谱,病例组ICA的PSV低于对照组,两者差异具有统计学意义(P〈0.001);颈动脉窃血侧ICA和ECA的PSV具有良好的相关性(r=0.77);椎动脉血流方向正常,内径和血流速度均较对照组增加(P〈0.001)。结论彩色多普勒超声可较准确、直观地显示颈动脉窃血的形态学及血流动力学改变,可为临床提供有价值的诊断信息。 | 刘妍 李杰 张开宁 时丹丹 刘聪聪 宁松 Ahmad Umair—riaz 孙霄 | 2013 | 中华超声影像学杂志2013,22,2: | 5 |
| 10 | Low soil temperature and drought stress conditions at flowering stage affect physiology and pollen traits of rice显示文摘Low temperature and drought stress are the major constraints in rice productivity worldwide. This study investigated the influence of low soil temperature and/or drought stress on physiology and pollen traits of two rice genotypes viz., Guinongzhan and Yueza 763 at flowering stage. The experiment included four treatments, i.e., under the greenhouse natural growth conditions (UC) taken as control, drought stress (DS), the soil water potential was kept at ?0.035 to ?0.045 MPa (DS), low soil temperature (LT) maintained at 19 to 21℃, combined LT and DS (LT+DS, LD). Results showed that LT, DS, and LD substantially reduced net photosynthetic rate (Pn) and the maximal photochemical efficiency of PSII (Fv/Fm), whilst transpiration rate (Tr) was markedly enhanced by under LT in both rice genotypes. The malondialdehyde (MDA) contents were enhanced under LT, DS, and LD in Guinongzhan, whilst the activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) were regulated by LT, DS, and LD in both rice genotypes. Furthermore, anther dehiscence rate, pollen numbers on stigma, pollen viability and pollen germination rate, and anther starch contents were obviously reduced under LT and DS of both rice genotypes. Stress conditions substantially reduced the yield and yield components, i.e., effective panicles, seed set percentage, grain/panicles, 1000-grain weight, and grain yield of both genotypes and the effects were more apparent in Guinongzhan than those in Yueza 763 whilst combined LT and DS proved more damaging than individual stress. | RAO Gang-shun Umair Ashraf KONG Lei-lei MO Zhao-wen XIAO Li-zhong ZHONG Ke-you Fahd Rasul TANG Xiang-ru | 2019 | Journal of Integrative Agriculture2019,18,8: | 4 |
| 11 | Multi-Objective Optimization of High Torque Density Segmented PM Consequent Pole Flux Switching Machine with Flux Bridge显示文摘Due to double salient structure,Flux Switching Machines(FSMs)are preferred for brushless AC high speed applications.Permanent Magnet(PM)FSMs(PM-FSMs)are suited applicants where high torque density(Tden)and power density(Pden)are the utmost requisite.However conventional PM-FSMs utilizes excessive rare earth PM volume VPM,higher cogging torque Tcog,high torque ripples(Trip)and comparatively lower(Tden)and Pden due to flux leakage.To overcome the aforesaid demerits,a new high(Tden)Segmented PM Consequent Pole(CP)FSM(SPMCPFSM)with flux bridge and barrier is proposed which successfully reduces VPM by 46.52%and PM cost by 46.48%.Moreover,Multi-Objective Optimization(MOO)examines electromagnetic performance due to variation in geometric parameters for global optimum parameters with key metric such as flux linkage(Φpp),flux harmonics(ΦTHD)average torque(Tavg),Tcog,Trip,Tden,average power(Pavg)and Pden.Analysis reveals that MOO improveΦpp by 22.68%,boost Tavg by 11.41%,enhanced Pavg by 4.55%and increased Tden and Pden by 11.41%.Detailed electromagnetic performance comparison with existing state of the art shows that proposed SPMCPFSM offer Tavg maximum up to 88.8%,truncate Trip up to 24.8%,suppress Tcog up to 22.74%,and results 2.45 times Tden and Pden. | Wasiq Ullah Faisal Khan Muhammad Umair | 2021 | CES Transactions on Electrical Machines and Systems2021,5,1: | 4 |
| 12 | Sugar beet yield and industrial sugar contents improved by potassium fertilization under scarce and adequate moisture conditions显示文摘Sugar beet(Beta vulgaris L.) is an industrial crop, grown worldwide for sugar production. In Pakistan, sugar is mostly extracted from sugarcane, soil and environmental conditions are equally favorable for sugar beet cultivation. Beet sugar contents are higher than sugarcane sugar contents, which can be further increased by potassium(K) fertilization. Total K concentration is higher in Pakistani soils developed from mica minerals, but it does not represent plant available K for sustainable plant growth. A pot experiment was conducted in the wire-house of Institute of Soil and Environmental Sciences at University of Agriculture Faisalabad, Pakistan. K treatments were the following: no K(K_0), K application at 148 kg ha^(–1)(K_1) and 296 kg ha^(–1)(K_2). Irrigation levels were used as water sufficient at 60% water holding capacity and water deficient at 40% water holding capacity. The growth, yield and beet quality data were analyzed statistically using LSD. The results revealed that increase in the level of K fertilization at water sufficient level significantly increased plant growth, beet yield and industrial beet sugar content. The response of K fertilization under water deficient condition was also similar, however overall sugar production was less than that in water sufficient conditions. It is concluded from this study that K application could be used not only to enhance plant growth and beet yield but also enhance beet sugar content both under water-deficient as well as water-sufficient conditions. | Muhammad Umair Mubarak Muhammad Zahir Sagheer Ahmad Abdul Wakeel | 2016 | Journal of Integrative Agriculture2016,15,11: | 4 |
| 13 | Deep placement of nitrogen fertilizer increases rice yield and nitrogen use efficiency with fewer greenhouse gas emissions in a mechanical direct-seeded cropping system显示文摘Deep placement of nitrogen fertilizer is a key strategy for improving nitrogen use efficiency. A two-year field experiment was conducted during the early rice growing seasons(March–July) of 2016 and 2017.The experimental treatments comprised two rice cultivars: Wufengyou 615(WFY 615) and Yuxiangyouzhan(YXYZ), and three N treatments: mechanical deep placement of all fertilizers as basal dose at 10 cm soil depth(one-time deep-placement fertilization, namely OTDP fertilization);manual surface broadcast(the common farmer practice) of 40% N fertilizer at one day before sowing(basal fertilizer)followed by broadcast application of 30% each at tillering and panicle initiation stages;and no fertilizer application at any growth stage as a control. One-time deep-placement fertilization increased grain yield of both rice cultivars by 11.8%–19.6%, total nitrogen accumulation by 10.3%–13.1%, nitrogen grain production efficiency by 29.7%–31.5%, nitrogen harvest index by 27.8%–30.0%, nitrogen agronomic efficiency by 71.3%–77.2%, and nitrogen recovery efficiency by 42.4%–56.7% for both rice cultivars, compared with the multiple-broadcast treatment. One-time deep-placement fertilization reduced CH4-induced global warming potential(GWP) by 20.7%–25.3%, N2O-induced GWP by 7.2%–12.3%, and total GWP by 14.7%–22.9% for both rice cultivars relative to the multiple-broadcast treatment. The activities of glutamine synthetase and nitrate reductase were increased at both panicle-initiation and heading stages in both rice cultivars following one-time deep-placement fertilization treatment. Larger leaf area index at heading stage and more favorable root morphological traits expressed as larger total root length, mean root diameter, and total root volume per hill were also observed. One-time deep-placement fertilization could be an effective strategy for increasing grain yield and nitrogen use efficiency and lowering greenhouse-gas emissions under mechanical direct-seeded cropping systems. | Lin Li Hua Tian Minghua Zhang Pingshan Fan Umair Ashraf Haidong Liu Xiongfei Chen Meiyang Duan Xiangru Tang Zaiman Wang Zheng Zhang Shenggang Pan | 2021 | The Crop Journal2021,9,6: | 4 |
| 14 | Phyto-Toxicity of Chromium in Maize: Oxidative Damage, Osmolyte Accumulation, Anti-Oxidative Defense and Chromium Uptake显示文摘Agricultural production systems are immensely exposed to different environmental stresses in which heavy metal stress receives serious concerns. This study was conducted to explore the deleterious effects of different chromium(Cr) stress levels, i.e., 0, 30, 6090, 120, and 150 μmol L-1, on two maize genotypes, Wandan 13 and Runnong 35. Both genotypes were evaluated by measuring their growth and yield characteristics, Cr accumulation in different plant tissues, alterations in osmolyte accumulation, generation o reactive oxygen species(ROS), and anti-oxidative enzyme activity to scavenge ROS. The results showed that Cr stress decreased the leaf area, cob formation, 100-grain weight, shoot fresh biomass, and yield formation, while Cr accumulation in different maize tissues was found in the order of roots > leaves > stem > seeds in both genotypes. The increased Cr toxicity resulted in higher free proline soluble sugars and total phenolic contents, and lower soluble protein contents. However, enhanced lipid peroxidation was noticed in the forms of malondialdehyde, hydrogen peroxide(H2O2) and thiobarbituric acid reactive substance accumulation, and electrolyte leakage. The hyperactivity of superoxide dismutase, peroxidase, catalase, ascorbate peroxidase, especially glutathione peroxidase and glutathione reductase indicated that these anti-oxidative enzymes had a central role in protecting maize from Cr toxicity, especially for Wandan 13. Moreover, higher uptake and less translocation of Cr contents into the grains of Wandan 13 implied its importance as a potential candidate against soil Cr pollution. | Shakeel Ahmad ANJUM Umair ASHRAF Imran KHAN Mohsin TANVEER Muhammad SHAHID Abdul SHAKOOR WANG Longchang | 2017 | Pedosphere2017,27,2: | 3 |
| 15 | Torque Characteristics of High Torque Density Partitioned PM Consequent Pole Flux Switching Machines With Flux Barriers显示文摘Unique double salient structure of Permanent Magnet Flux Switching Machines(PMFSM)with both Concentrated Armature inding(CAW)and Permanent Magnet(PM)on stator attract researcher's interest for high speed brushless application when high torque density(T den)and power density(P den)are the primal requirements.However,despite of stator leakage flux,high rare-earth PM usage,PMFSM is subjected to slot effects due to presence of both PM and CAW in stator and partial saturation due to double salient structure which generates cogging torque(T cog),torque ripples(Trip)and lower average torque(T avg).To overcomne aforesaid demerits,this paper presents Partitioned PM(PPM)Consequent Pole Flux Switching Machine(PPM-CPFSM)with flux barriers to enhance flux mnodulation,curtail PM usage and diminish stator leakage flux which reduces slotting effects and partial saturation to ultimately reduces T cog and Trip In comparison with the existing state of the art,proposed PPM-CPFSM reduces 46.5390 of the total PM volumne and offer Tavg higher up to 88.8%,suppress Trip naximun up to 24.8%,diminish Tcog up to 22.74%and offer 2.45 times Tden and Pden.Furthermore,torque characteristics of proposed PPM-CPFSM is investigated utilizing space harmonics injection i.e.inverse cosine,inverse cosine with 3rd harmonics and rotor pole shaping techniques i.e.,ecce ntric circle,chanfering and notching.Detailed electromagnetic perfornance analysis reveals that harmonics injection suppressed Tcog maximun up to 83.5%,Trip up to 40.72%at the cost of 4.71%Tavg.Finally,rotor mnechanical stress analysis is utilized for rotor withstand capability and 3D-FEA based Coupled Elctromagnetic Thermal Analysis(CETA)for thermal behavior of the developed PPM CPFSM.CETA reveals that open space along PPM act as cooling duct that inprove heat dissipation. | Wasiq Ullah Faisal Khan Erwan Sulaiman Muhammad Umair | 2020 | CES Transactions on Electrical Machines and Systems2020,4,2: | 3 |
| 16 | 车辆悬架系统的自适应模糊控制(英文)显示文摘悬架是用来支持车身的系统,通过隔离道路干扰使得乘客感觉舒适、并确保车辆稳定.为此研究了全车模型悬架系统在下列几种控制方式下的性能:被动控制、半主动控制、自适应标准可加性模型(SAM)下的主动控制.全车模型可以为车辆悬架系统提供一些必要的性能参数,如车身偏移、车轮偏移和悬架偏斜.乘坐的舒适性和车辆的操控性决定了所需悬架系统的性能.乘坐的舒适性取决于车身偏移和乘客座位的偏移,而车辆的稳定由其他自由度(如俯仰和滚转)决定.半主动和主动悬架控制的设计通过MATLAB/SIMULINK加以实现,充分考虑了不规则的路面,并以此验证半主动控制和SAM主动控制的性能.实验结果表明,SAM主动控制能够改善乘坐的舒适性和车辆的操控性. | Khan Laiq Umair Khan M | 2012 | 中国科学技术大学学报2012,42,9: | 3 |
| 17 | Retrospective analysis of complications related to endoscopic retrograde cholangio-pancreatography in patients with cirrhosis vs patients without cirrhosis显示文摘BACKGROUND There is minimal objective data regarding adverse events related to endoscopic retrograde cholangio-pancreatography(ERCP)in patients with cirrhosis compared to those without cirrhosis and even fewer data comparing complications among cirrhosis patients based on severity of cirrhosis.AIM To determine if patients with cirrhosis are at increased risk of adverse events related to ERCP:mainly pancreatitis,bleeding,perforation,cholangitis,and mortality;And to see if higher Child-Pugh(CP)score and Model for End-Stage Liver Disease(MELD)score are associated with higher post-ERCP complications.METHODS We performed a retrospective analysis of 692 patients who underwent ERCP and analyzed the impact of cirrhosis etiology,gender,type of sedation used during procedure,interventions performed,and co-morbidities on the rate of complications in cirrhosis patients as compared to non-cirrhosis patients.RESULTS Overall complications were higher in those with cirrhosis as compared to those without cirrhosis(P=0.015 at significance level of 0.05).CP class,especially CP class C,was shown to be associated with a significantly higher rate of ERCP complications as compared to CP class A and CP class B(P=0.010 at significance level of 0.05).CONCLUSION The results of our study reaffirm that liver cirrhosis has an impact on the occurrence of complications during ERCP.Our study shows that CP class seems to be more reliable as compared to MELD score in predicting complications of ERCP in cirrhosis patients. | Michelle Bernshteyn Linda Hu Umair Masood Anuj Vikrant Sharma Danning Huang Bishnu Sapkota | 2021 | World Journal of Hepatology2021,13,4: | 3 |
| 18 | The Impact of Internet of Things Supported by Emerging 5G in Power Systems: A Review显示文摘The Internet of Things(IoT)is playing an important role in providing access to affordable,clean and green energy worldwide through the use of smart devices.The current electric power networks will be more reliable,secure,flexible and durable by implementing IoT in power systems.This paper presents a brief discussion about IoT contributions in the development of power systems from a generation,transmission,distribution and consumption point of view.5G cellular networks have a great potential for the development of IoT technology.Additionally,5G cellular networks can be instrumental in supporting the greater communication needs of IoT.This review provides a comprehensive analysis about the role of 5G cellular networks in the growth of IoT technology and power systems.Large amounts of data will be generated due to the incorporation of renewable energy,deployment of the smart grid and the improvements to the electricity market.In this way,in order to realize the connection between things and people,things and things and people and people in power systems,it is essential to apply IoT in power systems.In this case,5G is providing numerous advantages to Power IoT(PIoT)by offering greater opportunities in progress and improvements;however,there are also numerous challenges with the deployment of 5G in PIoT.Finally,this review article provides an overview of the role,implications and challenges of 5G in PIoT. | Jinsong Tao Muhammad Umair Muhammad Ali Jian Zhou | 2020 | CSEE Journal of Power and Energy Systems2020,6,2: | 3 |
| 19 | Nutrition in alcohol-related liver disease:Physiopathology and management显示文摘Malnutrition encompassing both macro-and micro-nutrient deficiency,remains one of the most frequent complications of alcohol-related liver disease(ArLD).Protein-energy malnutrition can cause significant complications including sarcopenia,frailty and immunodepression in cirrhotic patients.Malnutrition reduces patient’s survival and negatively affects the quality of life of individuals with ArLD.Moreover,nutritional deficit increases the likelihood of hepatic decompensation in cirrhosis.Prompt recognition of at-risk individuals,early diagnosis and treatment of malnutrition remains a key component of ArLD management.In this review,we describe the pathophysiology of malnutrition in ArLD,review the screening tools available for nutritional assessment and discuss nutritional management strategies relevant to the different stages of ArLD,ranging from acute alcoholic hepatitis through to decompensated end stage liver disease. | Umair Kamran Jennifer Towey Amardeep Khanna Abhishek Chauhan Neil Rajoriya Andrew Holt | 2020 | World Journal of Gastroenterology2020,26,22: | 3 |
| 20 | Wolbachia pipientis:A potential candidate for combating and eradicating dengue epidemics in Pakistan显示文摘Dengue virus syndrome is an emerging global health challenge which is endemic in tropical countries like Pakistan.In recent years dengue incidences have increased considerably in different areas of Pakistan with more sever impacts on urban and peri-urban populations.This review is an effort to highlight the changing epidemiology of dengue fever,role of Government of Pakistan in disease management and control using preventive and community based approaches in the region.Moreover,there is an emphasis on application of Wolbachia as novel,inexpeasive and environmentally benign candidate for control and eradication of dengue transmitting vectors. | Uruj Tahir Umair Hassan Khan Muhammad Saad Zubair Bahar-e-Mustafa | 2015 | Asian Pacific Journal of Tropical Medicine2015,8,12: | 2 |