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| 1 | 基于波形相似度比较的线路快速纵联保护研究显示文摘针对基于工频量线路纵联保护动作速度受制于滤波算法数据窗以及抗干扰能力不足的问题,提出一种基于波形相似度比较的线路快速纵联保护算法。该方法利用故障发生后故障线路两侧波形间不一致形变的特征,通过Hausdorff距离算法对包括故障暂态时刻在内的任意时刻信号进行相似度比较,实现故障的快速识别和切除。该文结合算法特点提出对应的保护整定方法,并在整定的基础上分析算法的动作特性。针对原有Hausdorff距离算法受异常数据影响的缺陷,分析线路保护可能面临的异常数据特征,提出相应的改进策略。理论分析和仿真试验验证了所提算法的有效性和优越性。 | 陈乐 薄志谦 林湘宁 魏繁荣 余梦琪 金能 Muhammad Shoaib Khalid 李正天 黄景光 邓科 | 2017 | 中国电机工程学报2017，37，17： | 33 |
| 2 | 考虑可转移负荷效率的风/光/柴/蓄孤岛微网日运行能量控制优化策略显示文摘大型负荷尤其是可转移负荷的效率–功率特性常常被忽视,因此考虑风/光/柴/蓄微网系统的运行调度是不经济的。该文提出一种考虑可转移负荷效率的风/光/柴/蓄微网能量控制优化策略。首先以典型的可转移负荷——反渗透型制淡设备为例,建立包含设备工作全程的淡水输入–产出模型,实时计算其功率–效率特性曲线。在考虑制淡设备功率特性、蓄电池寿命(使用成本)、柴油机工作效率等因素的基础上,以燃料及蓄电池使用成本最少为目标,提出一种风/光/柴/蓄微网系统的日运行能量控制优化策略。通过与两种典型微网能量控制方案进行比较,仿真结果验证在包含可转移负荷的微网场景中,针对各种可能的储能设备和燃料的使用成本组合,在淡水需求量一定时,所提策略均具有较好的成本优势,为包含可转移负荷的微网经济运行策略制定提供了全新的视角。 | 魏繁荣 随权 林湘宁 李正天 陈乐 邓科 薄志谦 黄景光 Muhammad Shoaib Khalid Owolabi Sunday Adio | 2018 | 中国电机工程学报2018，38，4： | 34 |
| 3 | Crop photosynthetic response to light quality and light intensity显示文摘Under natural conditions, plants constantly encounter various biotic and abiotic factors, which can potentially restrict plant growth and development and even limit crop productivity. Among various abiotic factors affecting plant photosynthesis, light serves as an important factor that drives carbon metabolism in plants and supports life on earth. The two components of light(light quality and light intensity) greatly affect plant photosynthesis and other plant's morphological, physiological and biochemical parameters. The response of plants to different spectral radiations and intensities differs in various species and also depends on growing conditions. To date, much research has been conducted regarding how different spectral radiations of varying intensity can affect plant growth and development. This review is an effort to briefly summarize the available information on the effects of light components on various plant parameters such as stem and leaf morphology and anatomy, stomatal development, photosynthetic apparatus, pigment composition, reactive oxygen species(ROS) production, antioxidants, and hormone production. | Iram SHAFIQ Sajad HUSSAIN Muhammad Ali RAZA Nasir IQBAL Muhammad Ahsan ASGHAR Ali RAZA FAN Yuan-fang Maryam MUMTAZ Muhammad SHOAIB Muhammad ANSAR Abdul MANAF YANG Wen-yu YANG Feng | 2021 | Journal of Integrative Agriculture2021，20，1： | 16 |
| 4 | 基于隔直装置全局优化投切的直流偏磁治理方法显示文摘由于缺乏对直流电流全局分布的考虑,传统隔直装置投切方法容易造成区域内其他变压器出现中性点直流电流被动超标。为了有效地指导偏磁治理工作,提出一种基于隔直装置全局优化投切的偏磁治理方法。首先根据直流电位衰减规律确定交流系统建模范围,其次结合交流系统等效电阻网络、变电站与接地极地理位置分布情况,采用场–路耦合分析思想建立全局隔直装置优化投切数学模型,最后以全局中性点直流电流最大值最小为目标进行寻优,得到最优投切方案。通过宜昌地区电网实际参数验证所提方法(基于穷举法寻优)隔直效果优于传统方法,同时为了保证在交流系统规模扩大后寻优的效率,采用多种智能方法对优化问题进行求解,验证了智能算法同样可以实现趋近于穷举法的隔直效果。 | 谢志成 林湘宁 李正天 郑颖 郭倩雯 Muhammad Shoaib Khalid Owolabi Sunday Adio 薄志谦 | 2017 | 中国电机工程学报2017，37，24： | 16 |
| 5 | 应对全站采样信息缺失的应急保护系统显示文摘智能变电站的采样系统与GOOSE系统是两套相对独立的信息采集与传递系统。为了应对变电站全站采样信息缺失后变电站需立即退出运行或只能借助远后备保护进行完全非选择性保护的挑战,提出一种应对全站采样信息缺失的应急保护系统。该系统首先基于多端电流差动保护或方向保护原理界定大致故障区域,然后对双端和多端系统分别采用测量电抗百分比比较法和补偿电压相量推演比较法识别故障线路,并结合就地距离保护I段提出应对全站采样信息缺失的应急保护策略。理论分析与仿真结果表明:所提的应急保护系统可靠性及灵敏度高,具备对带过渡电阻故障的响应能力,能有效保障全站采样信息缺失后变电站继续运行及区域电网的安全稳定。 | 金能 李正天 林湘宁 魏繁荣 陈乐 余梦琪 薄志谦 黄景光 Muhammad Shoaib Khalid | 2017 | 中国电机工程学报2017，37，8： | 7 |
| 6 | 应对不可预知型短路电流超标的主动响应型站域保护策略显示文摘针对电力系统可能存在的不可预知型短路电流超标风险,提出一种主动响应型站域集成保护策略。采用最小二乘短路电流超快速预测,闭锁保护出口以防止断路器强行分闸造成爆炸;并基于短路前后外部系统状态突变,实现无故障进线的背侧系统等值,从而预估短路电流限制措施实施效果,优选站域保护紧急跳闸方案。仿真结果验证所提策略的有效性,为电网不可预知型短路电流超标问题提供一种全新的保护解决思路。 | 魏繁荣 马啸 林湘宁 李正天 陈乐 邓科 Muhammad Shoaib Khalid Owolabi Sunday Adio | 2018 | 中国电机工程学报2018，38，2： | 6 |
| 7 | 考虑TCSC型故障限流器动态过程的距离保护整定方法显示文摘在含TCSC型故障限流器(thyristor-controlled series capacitor-based fault current limiter,TCSC-FCL)线路距离保护的整定中,通常将TCSC-FCL作为电抗器处理,忽略其动态阻抗特性,可能导致保护拒动/误动或速动性不足。针对上述问题,建立TCSC-FCL动态阻抗分析模型,对TCSC-FCL独有的首周波旁路模式下的阻抗时变特性进行分析,研究其从串补模式切换到限流模式的动态阻抗变化过程,提出TCSC-FCL动态阻抗特性函数表示方法,并提出基于动态偏移阻抗圆的距离保护整定策略,以消除TCSC-FCL动态阻抗特性对距离保护动作性能的影响。建立含TCSC-FCL的典型输电网模型,验证上述动态特性函数表示方法以及距离保护整定策略的正确性。 | 魏繁荣 李慧 林湘宁 李正天 邓科 Muhammad Shoaib Khalid Owolabi Sunday Adio | 2017 | 中国电机工程学报2017，37，8： | 5 |
| 8 | 和阻抗继电器的改进形式及其动作性能分析显示文摘现有高压输电线路保护对于单相高阻接地故障灵敏度不足,长期以来一直是继电保护领域的一个遗留问题。该文根据线路双端测量阻抗之和在正常运行及单相故障场景下的差异性,针对原有和阻抗继电器不能动态适应线路电容电流变化的缺陷,提出一种改进和阻抗继电器,并设计能够保障其区内全线高阻接地速动能力的自适应浮动门槛。仿真结果证明所提出的原理实现简单、无需双端信息同步,能够快速响应区内任意故障点单相高阻故障,具备适应系统非全相运行能力,在绝大多数情况下,耐受过渡电阻能力均能达到300Ω。通过与现有主保护配合使用,可显著提升高压输电线路保护对各种系统运行工况下单相高阻接地故障的响应能力。 | 吕冉 李慧 刘鹏 林湘宁 童宁 李正天 黄景光 邓科 Owolabi Sunday Adio Muhammad Shoaib Khalid 韩雄辉 | 2018 | 中国电机工程学报2018，38，7： | 5 |
| 9 | 基于电压–能量反比特性的避雷器型最后断路器保护优化策略研究显示文摘最后断路器保护主要用于防止逆变站交流系统甩负荷所引起的严重过电压对系统设备造成的不良影响。除了常规型的最后断路器保护,特高压换流站还配置有避雷器型最后断路器保护作为后备保护。但是,此类保护还存在对过电压水平无法实现动作速度的适应性的问题。针对现有基于固有电压量积分方法存在的缺陷,提出了基于电压实时测量量的避雷器型最后断路器保护改进方法,并提出了基于电压–能量反比特性的避雷器型最后断路器保护动作门槛值的动态整定策略。该文参照向家坝—上海特高压直流输电系统实际参数搭建仿真模型,并通过仿真算例验证了该文方法在保证动作可靠性的前提下,可以进一步缩短系统设备承受高倍过电压的时间,更好地保护主设备。 | 林湘宁 何英发 谢志成 李正天 童重立 谭爱国 Muhammad Shoaib Khalid | 2017 | 中国电机工程学报2017，37，12： | 4 |
| 10 | Acupuncture/Electroacupuncture as an Alternative in Current Opioid Crisis显示文摘Opioid drugs are the first line of defense in severe pain but the adverse effects associated with opioids are considered as a serious issue worldwide.Acupuncture/electroacupuncture is a type of Chinese medicine therapy which is an effective analgesic therapy,well documented in animals and human studies.Electroacupuncture stimulation could release endogenous opioid peptides causing analgesia in a variety of pain models.It can be used as an alternative therapy to control the opioid crisis. | Usman Ali Evhy Apryani Muhammad Zaeem Ahsan Rana Muhammad Shoaib Khalil AN Ahmad WANG Yong-xiang | 2020 | Chinese Journal of Integrative Medicine2020，26，9： | 4 |
| 11 | Factors influencing hybrid maize farmers' risk attitudes and their perceptions in Punjab Province,Pakistan显示文摘Hybrid maize farmers have to face diverse kinds of climate, biological, price and financial risks. Farmers' risk perceptions and risk attitudes are essential elements influencing farm operations and management decisions. However, this important issue has been overlooked in the contemporary studies and therefore there is a dearth of literature on this important issue. The present research is therefore, an attempt to fill this gap. This study aims to quantify hybrid maize farmers' perceptions of disastrous risks, their attitudes towards risk and to explore the impacts of various farm and farm household factors on farmers' risk attitudes and risk perceptions. The present study is conducted in four hybrid maize growing districts of Punjab Province, Pakistan, using cross-sectional data of 400 hybrid maize farmers. Risk matrix and equally likely certainty equivalent(ELCE) method are used to rank farmers' perceptions of four catastrophic risk sources including climate, biological, price and financial risks and to investigate farmers' risk aversion attitudes, respectively. Furthermore, probit regression is used to analyze the determinants affecting farmers' risk attitudes and risk perceptions. The results of the study showed that majority of farmers are risk averse in nature and perceive price, biological and climate to be potential sources of risks to their farm enterprise. In addition, analysis divulges that distance from farm to main market, off-farm income, location dummies for Sahiwal and Okara, age, maize farming experience, access to extension agent, significantly(either negatively or positively) influence farmers' risk attitudes and risk perceptions. The study delivers valuable insights for farmers, agricultural insurance sector, extension services researchers and agricultural policy makers about the local understanding of risks to hybrid maize crop in developing countries, like Pakistan, and have implications for research on farmers' adaptation to exposed risks. | Shoaib Akhtar LI Gu-cheng Raza Ullah Adnan Nazir Muhammad Amjed Iqbal Muhammad Haseeb Raza Nadeem Iqbal Muhammad Faisal | 2018 | Journal of Integrative Agriculture2018，17，6： | 3 |
| 12 | A Reliable Stochastic Numerical Analysis for Typhoid Fever Incorporating With Protection Against Infection显示文摘In this paper,a reliable stochastic numerical analysis for typhoid fever incorporating with protection against infection has been considered.We have compared the solutions of stochastic and deterministic typhoid fever model.It has been shown that the stochastic typhoid fever model is more realistic as compared to the deterministic typhoid fever model.The effect of threshold number T*hold in stochastic typhoid fever model.The proposed framework of the stochastic non-standard finite difference scheme(SNSFD)preserves all dynamical properties like positivity,bounded-ness and dynamical consistency defined by Mickens,R.E.The stochastic numerical simulation of the model showed that increase in protection leads to low disease prevalence in a population. | Muhammad Shoaib Arif Ali Raza Muhammad Rafiq Mairaj Bibi Rabia Fayyaz Mehvish Naz Umer Javed | 2019 | Computers, Materials & Continua2019，，6： | 3 |
| 13 | Ethnobotanical inventory and medicinal uses of some important woody plant species of Kotli,Azad Kashmir,Pakistan显示文摘Objective:To document ethnobotanical informations of useful woody plant species in the region of Kotli,Azad Kashmir.Methods:An ethnobotanical survey was conducted in Kotli.Data were collected by interview and semi structured questionnaire from selected local informants and traditional practitioners as well as by field assessment.Results:The present study documented the etnobotanical uses of 33 woody plant species.Most of the species have been used for dual purpose.Only 5 species are used for one purpose.Study revealed all species have medicinal value,among which 21 were used as fuel wood species,16 as fodder species,4 as timber wood species,12 as edible fruit species,6 as fence or hedge plant,7 as ornamental species and 12 species had other uses.Conclusions:Medicinal plants are still widely used for health care by locals of Kotli.Some species of woodlands seem to be vulnerable to overcollection and deforestation.As the young generation is diverted toward allelopathic medicines,ethnobotanical knowledges of important medicinal plants are restricted to the old people only.It is suggested to close the forest of district Kotli for next two to three decades for the conservation of plant biodiversity. | Muhammad Shoaib Amjad Muhammad Arshad | 2014 | Asian Pacific Journal of Tropical Biomedicine2014，4，12： | 3 |
| 14 | Controllable Vapor Growth of Large-Area Aligned CdS_xSe_(1-x) Nanowires for Visible Range Integratable Photodetectors显示文摘The controllable growth of large area band gap engineered-semiconductor nanowires(NWs) with precise orientation and position is of immense significance in the development of integrated optoelectronic devices. In this study, we have achieved large area in-plane-aligned CdS_xSe_(1-x) nanowires via chemical vapor deposition method. The orientation and position of the alloyed CdS_xSe_(1-x)NWs could be controlled well by the graphoepitaxial effect and the patterns of Au catalyst. Microstructure characterizations of these as-grown samples reveal that the aligned CdS_xSe_(1-x)NWs possess smooth surface and uniform diameter. The aligned CdS_xSe_(1-x)NWs have strong photoluminescence and high-quality optical waveguide emission covering almost the entire visible wavelength range. Furthermore, photodetectors were constructed based on individual alloyed CdS_xSe_(1-x)NWs. These devices exhibit high performance and fast response speed with photoresponsivity ~670 A W^(-1) and photoresponse time ~76 ms. Present work provides a straightforward way to realize in-plane aligned bandgap engineering in semiconductor NWs for the development of large area NW arrays,which exhibit promising applications in future optoelectronic integrated circuits. | Muhammad Shoaib Xiaoxia Wang Xuehong Zhang Qinglin Zhang Anlian Pan | 2018 | Nano-Micro Letters2018，10，4： | 3 |
| 15 | Aluminium and cerium co-doped ZnO nanoparticles:Facile and inexpensive synthesis and visible light photocatalytic performances显示文摘Facile combustion route synthesized Al and Ce co-doped ZnO nanoparticles photocatalysts were characterized using XRD,SEM,BET,EDS,UV-visible DRS,PL,photocurrent and EIS techniques.XRD and SEM analyses identify that crystallite and particle size is reduced from 13.26 to 11.88 nm with introduction of Al and Ce into ZnO which assists inhibiting the recombination of photo generated charge carriers.UVvisible DRS spectra indicate that optical assimilation of ZnO is significantly increased to visible region(-406 nm)and band gap reduces from 3.18 to 3.06 eV with introduction of Al and Ce co-dopants.Electrochemical impedance spectroscopy analysis under visible light illumination confirms the enhancement in visible light activity of Al and Ce co-doped ZnO nanoparticles as photocatalysts.The enhanced activity of Al and Ce co-doped ZnO photocatalyst can be ascribed to enhanced light assimilation,high surface area and efficient charge transfer process.Our results reveal that by incorporating precise amount of Al(~2%)and Ce(~2%)into ZnO,a highly efficient catalyst can be synthesized that have degraded almost 95%methyl orange(MO)dye in just 45 min.Further,the influence of various operational parameters such as solution pH,catalyst dose,dye concentration,airflow rate and light intensity on photodecomposition of MO was evaluated.Furthe rmore,a possible mechanism for Al and Ce modified ZnO was proposed and designed photocatalysts demonstrates good stability in aqueous medium. | Irshad Ahmad Muhammad Shoaib Akhtar Ejaz Ahmed Mukhtar Ahmad | 2021 | Journal of Rare Earths2021，39，2： | 3 |
| 16 | Reversible and irreversible adsorption of bare and hybrid silica nanoparticles onto carbonate surface at reservoir condition显示文摘Realistic implementation of nanofluids in subsurface projects including carbon geosequestration and enhanced oil recovery requires full understanding of nanoparticles(NPs)adsorption behaviour in the porous media.The physicochemical interactions between NPs and between the NP and the porous media grain surface control the adsorption behavior of NPs.This study investigates the reversible and irreversible adsorption of silica NPs onto oil-wet and water-wet carbonate surfaces at reservoir conditions.Each carbonate sample was treated with different concentrations of silica nanofluid to investigate NP adsorption in terms of nanoparticles initial size and hydrophobicity at different temperatures,and pressures.Aggregation behaviour and the reversibility of NP adsorption onto carbonate surfaces was measured using dynamic light scattering(DLS),scanning electron microscope(SEM)images,energy dispersive X-ray spectroscope(EDS),and atomic force microscope(AFM)measurement.Results show that the initial hydrophilicity of the NP and the carbonate rock surface can influence the NPs adsorption onto the rock surfaces.Typically,oppositely charged NP and rock surface are attracted to each other,forming a mono or multilayers of NPs on the rock.Operation conditions including pressure and temperature have shown minor influence on nano-treatment efficiency.Moreover,DLS measurement proved the impact of hydrophilicity on the stability and adsorption trend of NPs.This was also confirmed by SEM images.Further,AFM results indicated that a wide-ranging adsorption scenario of NPs on the carbonate surface exists.Similar results were obtained from the EDS measurements.This study thus gives the first insight into NPs adsorption onto carbonate surfaces at reservoirs conditions. | Zain-UL-Abedin Arain Sarmad Al-Anssari Muhammad Ali Shoaib Memon Masood Ahmed Bhatti Christopher Lagat Mohammad Sarmadivaleh | 2020 | Petroleum2020，6，3： | 2 |
| 17 | A Stochastic Numerical Analysis for Computer Virus Model with Vertical Transmission Over the Internet显示文摘We are presenting the numerical analysis for stochastic SLBR model of computer virus over the internet in this manuscript.We are going to present the results of stochastic and deterministic computer virus model.Outcomes of the threshold number C∗hold in stochastic computer virus model.If C∗<1 then in such a condition virus controlled in the computer population while C∗>1 shows virus spread in the computer population.Unfortunately,stochastic numerical techniques fail to cope with large step sizes of time.The suggested structure of the stochastic non-standard finite difference scheme(SNSFD)maintains all diverse characteristics such as dynamical consistency,bounded-ness and positivity as well-defined by Mickens.On this basis,we can suggest a collection of plans for eradicating viruses spreading across the internet effectively. | Muhammad Shoaib Arif Ali Raza Wasfi Shatanawi Muhammad Rafiq Mairaj Bibi | 2019 | Computers, Materials & Continua2019，，9： | 2 |
| 18 | 保护用数据同步系统失效场景下线路主保护应急方案研究显示文摘随着变电站的数字化和智能化,电量信息由点对点的模拟量传输逐步转变为网络化的数字量传输,因此数字信息的同步变得尤为重要。保护用数据同步系统失效后,不仅线路两侧的电气量无法准确比相,即使完全依赖本侧信息的测量量,如距离/方向信息,因其依赖电压电流之间进行比相,也会输出错误结果。在此场景下,只能依赖电流速断和其他站的远后备保护实现对管辖区域内故障的保护,保护范围和动作速度都将显著变差。针对这一问题,基于拥有抗高阻故障能力且无需两侧信息同步的和阻抗继电器原理,提出无需相位信息的和阻抗模量保护判据和中段保护判据,结合电流速断保护,通过纵联通道的模量信息交互,形成保护用数据同步系统失效场景下的线路主保护应急方案,显著改善上述场景下的线路主保护性能。仿真算例验证所提方法的有效性和优越性。 | 陈乐 林湘宁 刘鹏 吕冉 李正天 魏繁荣 彭咏泉 Muhammad Shoaib Khalid 韩雄辉 谷玉春 吴通华 | 2017 | 中国电机工程学报2017，37，22： | 2 |
| 19 | 二维钙钛矿材料CsPbBr3中暗激子的磁场调控特性研究显示文摘二维钙钛矿材料作为21世纪最热门的材料之一,其优异的光电特性使其在太阳能电池、激光器等方面具有巨大的应用潜力.二维无机钙钛矿结构CsPbX3(X=Cl,Br,I)的激子性质对其光电特性具有决定性的作用.本工作针对CsPbBr3中的暗激子进行了详细的研究,通过施加面外磁场,实现了对CsPbBr3中暗态激子的激活并发现暗态激子的荧光强度随磁场增加而呈现线性增强.本工作揭示了CsPbBr3暗激子的磁场调控行为和内在物理机制,对深入理解其光电特性具有重要的科学意义. | 石钟太 Shoaib Muhammad 邓龙江 刘镇 毕磊 张林博 张丽 周佩珩 陈海燕 陆海鹏 谢建良 李东 潘安练 彭波 | 2020 | Science China Materials2020，63，8： | 2 |
| 20 | Synthesis of yttrium and cerium doped ZnO nanoparticles as highly inexpensive and stable photocatalysts for hydrogen evolution显示文摘Yttrium and cerium co-doped ZnO nanoparticles were synthesized by combustion route and characterized using X-ray diffraction(XRD),scanning electron microscopy(SEM),Brunauer-Emmett-Teller(BET),energy dispersive spectroscopy(EDS),X-ray photoelectron spectroscopy(XPS),UV-visible diffuse reflectance spectroscopy(UV-vis DRS),photoluminescence(PL)and electrochemical impedance spectroscopy(EIS)techniques.The introduction of yttrium ions has efficiently increased the relative percentage of Ce^(3+)ions in ZnO.Yttrium and cerium co-doped ZnO shows efficient photo activity for hydrogen evolution(10.61 mmol/((g·h))higher than previously reported optimal value for rare earth codoped ZnO photocatalysts.This remarkably increased hydrogen evolution can be ascribed to the synergy between electronic anchoring effect of Y^(3+)/Y^(2+)and Ce^(4+)/Ce^(3+)redox couples.This report presents new idea for the synthesis of efficient photocatalyst using economical route and ion anchoring effect.The hydrogen evolution was also tested using Na_(2)S and Na_(2)SO_(3)as electron donors under visible light illumination.The synthesized photocatalysts also exhibit high stability. | Irshad Ahmad Muhammad Shoaib Akhtar Mian Faisal Manzoor Muhammad Wajid Muhammad Noman Ejaz Ahmed Mukhtar Ahmad Waheed Qamar Khan Anwar M.Rana | 2021 | Journal of Rare Earths2021，39，4： | 2 |
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