检索结果-南通市图书馆

Advances and challenges of methanol-tolerant oxygen reduction reaction electrocatalysts for the direct methanol fuel cell

引用

Journal of Energy Chemistry 2023年第2期77卷 499-513,I0013页

作者： muhammad Aizaz Ud Din muhammad Idrees Sidra Jamil Syed Irfan Ghazanfar Nazir muhammad Ahmad Mudassir muhammad shahrukh saleem Saima Batool Nanpu Cheng Rahman Saidur School of Materials and Energy Southwest UniversityChongqing 400715China Additive Manufacturing Institute College of Mechatronics and Control EngineeringShenzhen UniversityShenzhen 518060GuangdongChina Chongqing Key Lab for Advanced Materials and Clean Energies of Technologies School of Materials and EnergySouthwest UniversityChongqing 400715China School of Materials Science and Engineering Dongguan University of TechnologyDongguan 523808GuangdongChina Department of Nanotechnology and Advanced Materials Engineering Sejong UniversitySeoul 05006Republic of Korea Department of Chemistry Khawaja Fareed University of Engineering and Information TechnologyRahim Yar Khan 64200Pakistan Laboratory for High Performance Ceramics EmpaSwiss Federal Laboratories for Materials Science and Technology8600 DübendorfSwitzerland Institute for Advanced Study Shenzhen UniversityShenzhen 518060GuangdongChina Research Centre for Nano-Materials and Energy Technology School of Engineering and TechnologySunway UniversityBandar SunwayMalaysia Department of Engineering Lancaster UniversityLancasterUnited Kingdom

Methanol cross-over effects from the anode to the cathode are important parameters for reducing catalytic performance in direct methanol fuel cells.A promising candidate catalyst for the cathode in direct methanol fuel cells must have excellent activity toward oxygen reduction reaction and resistance to methanol oxidation *** review focuses on the methanol tolerant noble metal-based electrocatalysts,including platinum and palladium-based alloys,noble metal–carbon based composites,transition metal-based catalysts,carbon-based metal catalysts,and metal-free *** understanding of the correlation between the activity and the synthesis method,electrolyte environment and stability issues are *** the transition metal-based catalyst,their activity,stability and methanol tolerance in direct methanol fuel cells and comparisons with those of platinum are particularly ***,strategies to enhance the methanol tolerance and hinder the generation of mixed potential in direct methanol fuel cells are also *** review provides a perspective for future developments for the scientist in selecting suitable methanol tolerate catalyst for oxygen reduction reaction and designing high-performance practical direct methanol fuel cells.

关键词： Oxygen reducing reaction Methanol tolerant electrocatalyst Portable power sources Direct methanol Fuel cell

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

PtCu dendroframe octahedrons:Enhancing peroxidase-like activity and antibacterial efficiency through structural evolution

引用

Nano Research 2025年第1期18卷 100-106页

作者： Ri Feng Jiuyi Hu Liangjun Wang Jiayu Xu Jiajia Li Zeeshan Ahmad Shaohui Zheng muhammad Farhan Farid Wenjing Liu Faisal saleem Key Laboratory of Flexible Electronics(KLOFE) Institute of Advanced Materials(IAM)and School of Flexible Electronics(Future Technologies)Nanjing Tech UniversityNanjing 211816China

Nanozymes,which possess enzyme-like catalytic activity,are attractive alternatives to natural *** activity is largely dependent on the structure of the ***,challenges remain in optimizing the structure-activity *** work explores the synthesis and utilization of PtCu nanostructures(NSs),focusing on their peroxidase(POD)-like properties and their potential as antibacterial *** developed PtCu dendrites that transform into unique dendroframe octahedrons(DFOs)and subsequently stabilize into solid octahedrons with unusual growth *** intermediate DFO,showed higher POD-like activity in comparison to other shapes of PtCu *** DFOs also have the better ability to consume glutathione,thus enhancing their sterilization ***,we demonstrate the effectiveness of these PtCu DFOs as powerful antibacterial *** work provides valuable information on shape dependent activities of PtCu NSs in the field of biomedicine.

关键词： nanozymes antibacterials peroxidase PtCu dendroframe octahedrons dendrites

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Structural Decomposition Analysis to Investigate the Changes in Energy Consumption in Pakistan

引用

Journal of Systems Science & Complexity 2020年第5期33卷 1497-1515页

作者： ALI Yousaf saleem Sania Binte SABIR muhammad Department of Management Science and Humanities Ghulam Ishaq Khan Institute of Engineering SciencesandTechnologyTopiSwabiKPKPakistan NUST Business School National University of Science andTechnologyIslamabadPakistan

The world energy demand is increasing due to rapid growth in the global economy,industrialization,and *** is also confronted with increasing energy demand on one hand and is confronted with the challenge of energy demand-supply gap on the other *** energy is the major driver for growth,it becomes important to investigate the trends of energy consumption in a country and the factors that are most affecting the changes in the use of *** particular study aims to investigate the use of energy by all the economic sectors of Pakistan during 2000–*** major contribution is the first time application of structural decomposition analysi for energy usage along with using Input-Output data for the period of 2002–*** results show the fluctuation of the energy intensity of the sectors throughout the study ***,the overall effect of energy intensity is negative on energy consumption and it shows a negative contribution value of-80.90%for the study ***,the focus on more energy-intensive products like cement,automobiles,iron,steel products and the increasing final demand of the economy contributes to the growth of energy consumption in Pakistan during 2000–2012.

关键词： Energy consumption energy intensity structural decomposition analysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The outcomes of pars plana vitrectomy without endotamponade for tractional retinal detachment secondary to proliferative diabetic retinopathy

引用

International Journal of Ophthalmology(English edition) 2013年第5期6卷 671-674页

作者： Rao muhammad Rashad Qamar muhammad Imran saleem muhammad Farhan saleem Department of Ophthalmology Eye Unit-IB.V.Hospital

AIM:To evaluate the outcomes of pars plana vitrectomy(PPV) without the use of an ocular tamponade in patients having tractional retinal detachment(TRD) secondary to proliferative diabetic retinopathy(PDR).METHODS:It was an interventional study conducted at the Department of Ophthalmology,***,Bahawalpur,Pakistan,from July 2011 to July 2012.A total of 75 patients(84 eyes) having TRD secondary to PDR were treated by PPV without using an ocular *** patients included in the study had a tractional retinal detachement secondary to proliferative diabetic retinopathy but didn’t have or develop retinal breaks before or during the study *** surgical procedure included a PPV combined with the removal of the tractional retinal membranes and the application of endolaser photocoagulation to the *** mean follow-up period was 12 months. RESULTS:Successful retinal reattachement was observed in 78 of the operated eyes(92.8%).In these patients,the retina remained attached till the end of the one year follow-up *** in best corrected visual acuity(BCVA) was seen in 63 eyes(75%).The visual acuity remained unchanged in 9 eyes(10.7%).Mean improvement in BCVA was 2.00 +1.24 at baseline to 1.24+1.22(P<0.05) at the end of the followup ***:In the absence of the retinal breaks,a TRD secondary to PDR can be successfully treated by pars plana vitrectomy without the use of an ocular tamponade.

关键词： endotamponade pars plana vitrectomy proliferative diabetic retinopathy tractional retinal detachment

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Spherical uncertain linguistic Hamacher aggregation operators and their application on achieving consistent opinion fusion in group decision making

引用

International Journal of Intelligent Computing and Cybernetics 2021年第4期14卷 550-579页

作者： muhammad Qiyas saleem Abdullah muhammad Naeem Mathematics Abdul Wali Khan UniversityMardanPakistan Abdul Wali Khan University MardanPakistanand Department of Preparatory Year Umm Al-Qura UniversityMakkahSaudi Arabia

Purpose-The aim of this research is to establish a new type of aggregation operator based on Hamacher operational law of spherical uncertain linguistic numbers(SULNs).Design/methodology/approach-First,the authors define spherical uncertain linguistic sets and develop some operational laws of ***,the authors extended these operational laws to the aggregation operator and developed spherical uncertain linguistic Hamacher averaging and geometric aggregation ***-The authors were limited in achieving a consistent opinion on the fusion in group decision-making problem with the SULN ***/value-In order to give an application of the introduced operators,the authors first constrict a system of multi-attribute decision-making algorithm.

关键词： Multi-attribute group decision making Spherical fuzzy set Spherical uncertain linguistic Hamacher averaging operators Spherical uncertain linguistic Hamacher geometric operators

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The New Neutrosophic Double and Triple Exponentially Weighted Moving Average Control Charts

引用

Computer Modeling in Engineering & Sciences 2021年第10期129卷 373-391页

作者： Ambreen Shafqat muhammad Aslam muhammad saleem Zameer Abbas Department of Statistics and Financial Mathematics School of ScienceNanjing University of Science and TechnologyNanjing210094China Department of Statistics University of SargodhaSargodha40100Pakistan Department of Statistics Faculty of ScienceKing Abdulaziz UniversityJeddah21551Saudi Arabia Department of Industrial Engineering Faculty of Engineering-RabighKing Abdulaziz UniversityJeddah21589Saudi Arabia Goverment Ambala Muslim Graduate College Sargodha40100Pakistan

The concept of neutrosophic statistics is applied to propose two monitoring schemes which are an improvement of the neutrosophic exponentially weighted moving average(NEWMA)*** this study,two control charts are designed under the uncertain environment or neutrosophic statistical interval system,when all observations are undermined,imprecise or *** are termed neutrosophic double and triple exponentially weighted moving average(NDEWMA and NTEWMA)control *** the proficiency of the proposed chart,Monte Carlo simulations are used to calculate the run-length characteristics(such as average run length(ARL),standard deviation of the run length(SDRL),percentiles(P_(25),P_(50),P_(75)))of the proposed *** structures of the proposed control charts are more effective in detecting small shifts while these are comparable with the other existing charts in detecting moderate and large *** simulation study and real-life implementations of the proposed charts show that the proposed NDEWMA and NTEWMA charts perform better in monitoring the process of road traffic crashes and electric engineering data as compared to the existing control ***,the proposed charts will be helpful in minimizing the road accident and minimizing the defective ***,the proposed charts are more acceptable and actual to apply in uncertain environment.

关键词： Exponentially weighted moving average(EWMA) double EWMA triple EWMA neutrosophic control chart run-length

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Performance evaluation of multicast relay network using LDPC and convolutional channel codes along-with XOR network coding

引用

The Journal of China Universities of Posts and Telecommunications 2012年第4期19卷 122-128页

作者： Tariq Aziz Nasir saleem muhammad Iqba School of Information and Communication Beijing University of Posts and Telecommunications

In this paper, we have compared the performance of joint network channel coding （JNCC） for multicast relay network using low density parity check （LDPC） codes and Convolutional codes as channel codes while exclusive or （XOR） network coding used at the intermediate relay nodes. Multicast relay transmission is a type of transmission scheme in which two fixed relay nodes contribute in the second hop of end-to-end transmission between base transceiver station （BTS） and a pair of mobile stations. We have considered one way and two way multicast scenarios to evaluate the bit error rate （BER） and throughput performance. It has been shown that when using XOR network coding at the intermediate relay nodes, the same transmission becomes possible in less time slots hence throughput performance can be improved. Moreover we have also discussed two possible scenarios in the proposed system model, in which both diversity and multiplexing gain has been considered. It is worth notifying that BER and throughput achieved for LDPC codes is better than Convolutional codes for all the schemes discussed.

关键词： cooperative relaying network coding multicast relay networks LDPC codes convolutional codes

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Snowmelt runoff prediction under changing climate in the Himalayan cryosphere: A case of Gilgit River Basin

引用

Geoscience Frontiers 2017年第5期8卷 941-949页

作者： muhammad Adnan Ghulam Nabi muhammad saleem Poomee Arshad Ashraf Climate Change Alternate Energy and Water Resources Institute (CAEWRI) National Agricultural Research Center Park Road Chakshahzad Islamabad Pakistan Center of Excellence in Water Resources (CEWR) Lahore Pakistan

There are serious concerns of rise in temperatures over snowy and glacierized Himalayan region that may eventually affect future river flows of Indus river system. It is therefore necessary to predict snow and glacier melt runoff to manage future water resource of Upper Indus Basin(UIB). The snowmelt runoff model(SRM) coupled with MODIS remote sensing data was employed in this study to predict daily discharges of Gilgit River in the Karakoram Range. The SRM was calibrated successfully and then simulation was made over four years i.e. 2007, 2008, 2009 and 2010 achieving coefficient of model efficiency of 0.96, 0.86, 0.9 and 0.94 respectively. The scenarios of precipitation and mean temperature developed from regional climate model PRECIS were used in SRM model to predict future flows of Gilgit River. The increase of 3 C in mean annual temperature by the end of 21 th century may result in increase of 35-40% in Gilgit River flows. The expected increase in the surface runoff from the snow and glacier melt demands better water conservation and management for irrigation and hydel-power generation in the Indus basin in future.

关键词： Snowmelt runoff model Climate change Gilgit River Himalayan region

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

An Approximation for the Entropy Measuring in the General Structure of SGSP_(3)

引用

Computers, Materials & Continua 2022年第12期73卷 4455-4463页

作者： Zeeshan saleem Muftiand muhammad Hussain Kamel Jebreen muhammad Haroon Aftab Mohammad Issa Sowaity Zeeshan saleem Mufti muhammad Hussain Biostatistics and Clinical Research Department University Hospital LariboisièreAP-HPUniversite’de ParisParis75010France Department of Mathematics An-Najah National UniversityNablusP400Palestine Department of Mathematics Palestine Technical University-KadoorieHebronP766Palestine Department of Mathematics and Statistics the University of LahoreLahore54000Pakistan Department of Mathematics Palestine Polytechnic UniversityHebronP766Palestine Department of Mathematics COMSATS University IslamabadLahore campusLahore54000Pakistan

In this article,we calculate various topological invariants such as symmetric division degree index,redefined Zagreb index,VL index,first and second exponential Zagreb index,first and second multiplicative exponential Zagreb indices,symmetric division degree entropy,redefined Zagreb entropy,VL entropy,first and second exponential Zagreb entropies,multiplicative exponential Zagreb *** take the chemical compound named Proanthocyanidins,which is a very useful polyphenol in human’s *** are very beneficial for one’s *** chemical compounds are extracted from grape *** are tremendously anti-inflammatory.A subdivision formof this compound is presented in this *** compound named subdivided grape seed Proanthocyanidins is abbreviated as SGSP_(3).This network SGSP_(3),is converted and modeled into its mathematical graphical formation with the support of the latest mathematical *** have also developed many closed formulas for the measurement of entropy for the general chemical structure of the subdivided grape seed Proanthocyanidins *** achieved outcomes can be correlated with the chemical version of SGSP_(3) to get a better understanding of its biological as well as physical features.

关键词： Symmetric division degree redefined Zagreb VL index exponential multiplicative Zagreb subdivided grape seed Proanthocyanidins graphical model genetics entropy

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Crimean-Congo hemorrhagic fever: etiology, diagnosis, management and potential alternative therapy

引用

Asian Pacific Journal of Tropical Medicine 2020年第4期13卷 143-151页

作者： Mohammad saleem Muiz Tanvir muhammad Furqan Akhtar Ammara saleem Department of Pharmacology Punjab University College of PharmacyUniversity of the PunjabLahorePakistan Department of Pharmacology Faculty of Pharmaceutical SciencesGovernment College University FaisalabadFaisalabadPakistan Riphah Institute of Pharmaceutical Sciences Riphah International UniversityLahore CampusPakistan

Crimean-Congo hemorrhagic fever(CCHF)virus belongs to the genus Nairovirus and family *** is a tickborne disease that has mostly been reported from Asia,Africa and *** diagnosis of CCHF is essential for patient care and preventing its spread to normal *** of CCHF is mostly limited to the use of ribavirin and palliative *** practice of using interferon and vaccines has also been proved to be ineffective and unsafe.A search for an effective alternative treatment of the CCHF still ***,the current review focusses on the cause,prevalence,mode of transmission,pathophysiology,signs,symptoms,diagnostic features and treatment options of *** review also highlights the possible alternative therapy in the form of antiviral medicinal plants which are effective against viral hemorrhagic *** medicinal plants have shown convincing evidence for their activities against different viral hemorrhagic fevers and may be used alone or in combination with existing therapies to achieve an optimum therapeutic response.

关键词： Congo fever Dengue fever Alternative therapy Antiviral plants

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：