|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Electrode materials derived from plastic wastes and other industrial wastes for supercapacitors显示文摘The present review not only devotes on the environmental consequences of plastic bag wastes and other industrial wastes observable in the landfills,in the oceans or elsewhere but also gives a new insight idea on conversion of them into worth material,carbon,for the best electrochemical supercapacitor.Transformation of plastic wastes into high-value materials is the incentive for plastic recycling,end-oflife handling case for plastic bag wastes in practice quite limited.The plastic recycling waste for reuse saves energy compared with manufacturing virgin materials.Herein,we identified several synthetic methods to convert plastic waste and other industrial wastes into carbon material for supercapacitor.Different kinds of carbon materials,including nanofiber,nanotube,graphene,mesoporous carbon,etc.,have been derived from plastic waste,and thus give a superior potential for transforming trash into a'gold capacitor'.Finally,conclusions and future trends of high-voltage supercapacitors were made as well as the easy and mass production of high-performance electrode materials for supercapacitors.Our work offers a promising sustainable approach to handle plastic bags,waste,and other industrial wastes and provides a new avenue in supercapacitor applications and other areas. | Wellars Utetiwabo Le Yang Muhammad Khurram Tufail Lei Zhou Renjie Chen Yimeng Lian Wen Yang | 2020 | Chinese Chemical Letters2020，31，6： | 5 |
| 2 | Stem taper functions for Betula platyphylla in the Daxing’an Mountains,northeast China显示文摘Accurate prediction of stem diameter is an important prerequisite of forest management.In this study,an appropriate stem taper function was developed for upper stem diameter estimation of white birch(Betula platyphylla Sukaczev)in ten sub-regions of the Daxing’an Mountains,northeast China.Three commonly used taper functions were assessed using a diameter and height dataset comprising 1344 trees.A first-order continuous-time error structure accounted for the inherent autocorrelation.The segmented model of Max and Burkhart(For Sci 22:283–289,1976.http://gffzzd3cc09b8251d45dfsufoxnbqxu6bx60pu.ffgz.tsg.suse.edu.cn/10.1093/fores tscie nce/22.3.283)and the variable exponent taper function of Kozak(For Chron 80:507–515,2004.http://gffzzd3cc09b8251d45dfsufoxnbqxu6bx60pu.ffgz.tsg.suse.edu.cn/10.5558/tfc80507-4)described the data accurately.Owing to its lower multicollinearity,the Max and Burkhart(1976)model is recommended for diameter estimation at specific heights along the stem for the ten sub-regions.After comparison,the Max and Burkhart(1976)model was refitted using nonlinear mixed-effects techniques.Mixed-effects models would be used only when additional upper stem diameter measurements are available for calibration.Differences in region-specific taper functions were indicated by the method of the non-linear extra sum of squares.Therefore,the particular taper function should be adjusted accordingly for each sub-region in the Daxing’an Mountains. | Muhammad Khurram Shahzad Amna Hussain Harold EBurkhart Fengri Li Lichun Jiang | 2021 | Journal of Forestry Research2021，32，2： | 4 |
| 3 | Orderly defective superstructure for enhanced pseudocapacitive storage in titanium niobium oxide显示文摘Artificial defect engineering in transition metal oxides is of important terms for numerous applications.In the present work,we proposed an in-situ gas reduction strategy to introduce ordered defects into titanium niobium oxide embedding on vapor grew carbon fibers(Ti_(2)Nb_(10)O_(29-x)@VGCFs).High-resolution transmission electron microscopy(HRTEM)and fast Fourier transform(FFT)simulation indicate that the ordered oxygen defects locate at interval layers,which leads to a new superstructure in Ti_(2)Nb_(10)O_(29).The ordered defects could provide extra active sites for lithium-ion storage and modulate ionic migration,resulting an enhanced pseudocapacitive performance.In addition,the excellent structural stability of the superstructure was proved by in-situ HRTEM under a harsh electrochemical process.Our work provides a directly observation of orderly defective superstructure in transition metal oxide,and its functionality on electrochemistry was revealed. | Le Yang Jinfeng Zeng Lei Zhou Ruiwen Shao Wellars Utetiwabo Muhammad Khurram Tufail Saisai Wang Wen Yang Jiatao Zhang | 2022 | Nano Research2022，15，2： | 4 |
| 4 | Effect of rare earth and transition metal La-Mn substitution on electrical properties of co-precipitated M-type Ba-ferrites nanoparticles显示文摘In the current research work Ba_(1-x)La)xMn)yFe_(12-y)O_(19) hexa-ferrite nanoparticles of different compositions were synthesized using chemical co-precipitation technique. The structural properties were explored using X-ray diffractions(XRD), scanning electron microscopy(SEM) and Fourier transmission infrared spectroscopy(FTIR). XRD indexed pattern confirms the formation of M-type hexagonal phase. The crystallite size of synthesized samples ranges from 13 to 34 ± 2 nm. FTIR peaks observe also confirmed the presence of metaloxygen bond of the desired product. The position of peak at 467 cm^(-1) corresponds to A_2 u vibration for octahedral Fe(4+)-O and peak position E1 u corresponds to vibration of Fe(3+)O4 octahedral bonds. The band v_1 in range(677-559 cm^(-1)) and v_2 in frequency range(356-419 cm^(-1)) are associated to A and B sites.Dielectric properties of all compositions were measured with frequency. The dielectric constant, loss and tangent loss decrease from 26 to 9, 25 to 2 and 0.94 to 0.14, respectively with frequency. DC electrical resistivity is increased with dopant concentration increasing from 2.15 × 10~4 to 1.92 ×10~5 Ω·cm. | Muhammad Ayub Iftikhar Hussain Gul Khalid Nawaz Khurram Yaqoob | 2019 | Journal of Rare Earths2019，37，2： | 4 |
| 5 | Coverless Steganography for Digital Images Based on a Generative Model显示文摘In this paper,we propose a novel coverless image steganographic scheme based on a generative model.In our scheme,the secret image is first fed to the generative model database,to generate a meaning-normal and independent image different from the secret image.The generated image is then transmitted to the receiver and fed to the generative model database to generate another image visually the same as the secret image.Thus,we only need to transmit the meaning-normal image which is not related to the secret image,and we can achieve the same effect as the transmission of the secret image.This is the first time to propose the coverless image information steganographic scheme based on generative model,compared with the traditional image steganography.The transmitted image is not embedded with any information of the secret image in this method,therefore,can effectively resist steganalysis tools.Experimental results show that our scheme has high capacity,security and reliability. | Xintao Duan Haoxian Song Chuan Qin Muhammad Khurram Khan | 2018 | Computers, Materials & Continua2018，，6： | 4 |
| 6 | 高离子电导率硫化物固态电解质的空气稳定性研究进展显示文摘全固态锂电池兼具安全性和高能量密度,作为下一代储能器件备受关注.硫化物固态电解质具有锂离子电导率高、晶界电阻低、机械延展性好等优点,作为最具商业化潜力的固态电解质,引起了产业界和科研单位的广泛兴趣.但是硫化物固态电解质较差的空气稳定性导致其制备以及后续组装的硫化物固态全电池需要在氩气保护的环境下进行操作,使得生产成本居高不下,严重制约其产业化的步伐.本文对硫化物固态电解质空气稳定性的相关研究包括空气稳定性的研究方法和衰减反应机制进行详细的梳理和客观分析,并提炼出提高硫化物固态电解质空气稳定性相应的策略与方法. | 吕璐 周雷 Khurram Tufail Muhammad 杨乐 陈人杰 杨文 | 2020 | 中国科学:化学2020，50，9： | 4 |
| 7 | Loan growth and bank solvency:evidence from the Pakistani banking sector显示文摘Background:The dramatic loan growth and changes in the Pakistani banking system in mid-2000s have led to significant research attention on borrowers and lenders.This expansion and diversification in financial sector was driven by structural reforms,political stability and significant economic growth.Against this background,this study investigates the loan growth and risk-taking behavior of the banks during the expansionary periods of lending.Method:This study used dynamic two-step system generalized method of moment’s estimation technique,based on data taken from 32 banks in Pakistan over 2006-2014.Result:Loan growth has a significant effect on bank-specific and macroeconomicspecific variables.Loan growth in the previous year raises non-performing loans and decreases the solvency of banks with a time lag of many years.The driving force behind this phenomenon is weak prudential regulation among competitors,the asymmetric information of the borrowers,and,most importantly,that banks underestimate the risk of lending during credit booms.Conclusion:More regulatory measures are required to ensure a strong financial system when the volume of non-performing loan grows significantly.An increase in the capital requirement policy for rapidly growing banks is also needed because the problem of abnormal loan growth cannot be detected at the current time.At the same time,strong supervision is necessary to avoid the adverse consequences of borrower selection. | Muhammad Kashif Syed Faizan Iftikhar Khurram Iftikhar | 2016 | Financial Innovation2016，2，1： | 2 |
| 8 | A panoramic view of Li_(7)P_(3)S_(11) solid electrolytes synthesis, structural aspects and practical challenges for all-solid-state lithium batteries显示文摘The development of an inorganic electrochemical stable solid-state electrolyte is essentially responsible for future state-of-the-art all-solid-state lithium batteries(ASSLBs).Because of their advantages in safety,working temperature,high energy density,and packaging,ASSLBs can develop an ideal energy storage system for modern electric vehicles(EVs).A solid electrolyte(SE)model must have an economical synthesis approach,exhibit electrochemical and chemical stability,high ionic conductivity,and low interfacial resistance.Owing to its highest conductivity of 17 mS·cm^(-1),and deformability,the sulfide-based Li_(7)P_(3)S_(11) solid electrolyte is a promising contender for the high-performance bulk type of ASSLBs.Herein,we present a current glimpse of the progress of synthetic procedures,structural aspects,and ionic conductivity improvement strategies.Structural elucidation and mechanistic approaches have been extensively discussed by using various characterization techniques.The chemical stability of Li_(7)P_(3)S_(11) could be enhanced via oxide doping,and hard and soft acid/base(HSAB)concepts are also discussed.The issues to be undertaken for designing the ideal solid electrolytes,interfacial challenges,and high energy density have been discoursed.This review aims to provide a bird’s eye view of the recent development of Li_(7)P_(3)S_(11)-based solid-state electrolyte applications and explore the strategies for designing new solid electrolytes with a target-oriented approach to enhance the efficiency of high energy density allsolid-state lithium batteries. | Muhammad Khurram Tufail Niaz Ahmad Le Yang Lei Zhou Muhammad Adnan Naseer Renjie Chen Wen Yang | 2021 | Chinese Journal of Chemical Engineering2021，34，11： | 1 |
| 9 | Novel analysis and optimization of gm - boosted common - gate UWB LNA 显示文摘 | Muhammad Khurram Rezaul Hasan S M | 2011 | Microelectronics Journal2011，42，2： | 1 |
| 10 | Performance evaluation of score level fusion in multimodal biometric systems显示文摘 | Mingxing He Shi-Jinn Horng Pingzhi Fan Ray-Shine Run Rong-Jian Chen Jui-Lin Lai Muhammad Khurram Khan Kevin Octavius Sentosa | 2009 | Pattern Recognition2009，，5： | 1 |
| 11 | The first fully integrated quad-band GSM/GPRS receiver in a 90-nm digital CMOS process 显示文摘 | Khurram Muhammad Yo-Chuol Ho Terry L May- hugh | 2006 | IEEE J Solid-state Circuits2006，41，8： | 1 |
| 12 | A biometric identity-based signcryption scheme显示文摘 | Fagen Li Muhammad Khurram Khan | 2010 | Future Generation Computer Systems2010，，1： | 1 |
| 13 | eipold 显示文摘 | Mitch Entezari Khurram Muhammad Dirk I | 2005 | All-Digital PLL and Transmitter for Mobile Phones [J 1- IEEE Journal of Solid-State Circuits2005，40，12： | 1 |
| 14 | Improving the security of ‘a flexible biometrics remote user authentication scheme’显示文摘 | Muhammad Khurram Khan Jiashu Zhang | 2007 | Computer Standards & Interfaces2007，，1： | 1 |
| 15 | Tailored Carrier Transport Path by Interpenetrating Networks in Cathode Composite for High Performance All‑Solid‑State Li‑SeS_(2) Batteries显示文摘All-solid-state Li-SeS_(2) batteries(ASSLSs)are more attractive than traditional liquid Li-ion batteries due to superior thermal stability and higher energy density.However,various factors limit the practical application of all-solid-state Li-SeS_(2) batteries,such as the low ionic conductivity of the solid-state electrolyte and the poor kinetic property of the cathode composite,resulting in unsatisfactory rate capability.Here,we employed a traditional ball milling method to design a Li_(7)P_(2.9)W_(0.05)S_(10.85) glass–ceramic electrolyte with high conductivity of 2.0 mS cm^(−1) at room temperature.In order to improve the kinetic property,an interpenetrating network strategy is proposed for rational cathode composite design.Signifcantly,the disordered cathode composite with an interpenetrating network could promote electronic and ionic conduction and intimate contacts between the electrolyte–electrode particles.Moreover,the tortuosity factor of the carrier transport channel is considerably reduced in electrode architectures,leading to superior kinetic performance.Thus,assembled ASSLS exhibited higher capacity and better rate capability than its counterpart.This work demonstrates that an interpenetrating network is essential for improving carrier transport in cathode composite for high rate all-solid-state Li-SeS_(2) batteries. | Lei Zhou Muhammad Khurram Tufail Yaozu Liao Niaz Ahmad Peiwen Yu Tinglu Song Renjie Chen Wen Yang | 2022 | Advanced Fiber Materials2022，4，3： | 1 |
| 16 | Improving the security of a flexible biometrics remote user authentication scheme 显示文摘 | Muhammad Khurram Khan Zhang Jiashu | 2007 | Computer Standards & Interfaces2007，29，1： | 1 |
| 17 | Design of Sigma-Delta Modulators with Arbitrary Transfer Functions 显示文摘 | Wang Yongtao Muhammad Khurram Roy Kauchik | 2007 | IEEE Transactions on Signal Processing2007，55，2： | 1 |
| 18 | Implementation of VLSI on Signal Processing-Based Digital Architecture Using AES Algorithm显示文摘Continuous improvements in very-large-scale integration(VLSI)technology and design software have significantly broadened the scope of digital signal processing(DSP)applications.The use of application-specific integrated circuits(ASICs)and programmable digital signal processors for many DSP applications have changed,even though new system implementations based on reconfigurable computing are becoming more complex.Adaptable platforms that combine hardware and software programmability efficiency are rapidly maturing with discrete wavelet transformation(DWT)and sophisticated computerized design techniques,which are much needed in today’s modern world.New research and commercial efforts to sustain power optimization,cost savings,and improved runtime effectiveness have been initiated as initial reconfigurable technologies have emerged.Hence,in this paper,it is proposed that theDWTmethod can be implemented on a fieldprogrammable gate array in a digital architecture(FPGA-DA).We examined the effects of quantization on DWTperformance in classification problems to demonstrate its reliability concerning fixed-point math implementations.The Advanced Encryption Standard(AES)algorithm for DWT learning used in this architecture is less responsive to resampling errors than the previously proposed solution in the literature using the artificial neural networks(ANN)method.By reducing hardware area by 57%,the proposed system has a higher throughput rate of 88.72%,reliability analysis of 95.5%compared to the other standard methods. | Mohanapriya Marimuthu Santhosh Rajendran Reshma Radhakrishnan Kalpana Rengarajan Shahzada Khurram Shafiq Ahmad Abdelaty Edrees Sayed Muhammad Shafiq | 2023 | Computers, Materials & Continua2023，，3： | 0 |
| 19 | Efficient Joint Key Authentication Model in E-Healthcare显示文摘Many patients have begun to use mobile applications to handle different health needs because they can better access high-speed Internet and smartphones.These devices and mobile applications are now increasingly used and integrated through the medical Internet of Things(mIoT).mIoT is an important part of the digital transformation of healthcare,because it can introduce new business models and allow efficiency improvements,cost control and improve patient experience.In the mIoT system,when migrating from traditional medical services to electronic medical services,patient protection and privacy are the priorities of each stakeholder.Therefore,it is recommended to use different user authentication and authorization methods to improve security and privacy.In this paper,our prosed model involves a shared identity verification process with different situations in the e-health system.We aim to reduce the strict and formal specification of the joint key authentication model.We use the AVISPA tool to verify through the wellknown HLPSL specification language to develop user authentication and smart card use cases in a user-friendly environment.Our model has economic and strategic advantages for healthcare organizations and healthcare workers.The medical staff can increase their knowledge and ability to analyze medical data more easily.Our model can continuously track health indicators to automatically manage treatments and monitor health data in real time.Further,it can help customers prevent chronic diseases with the enhanced cognitive functions support.The necessity for efficient identity verification in e-health care is even more crucial for cognitive mitigation because we increasingly rely on mIoT systems. | Muhammad Sajjad Tauqeer Safdar Malik Shahzada Khurram Akber Abid Gardezi Fawaz Alassery Habib Hamam Omar Cheikhrouhou Muhammad Shafiq | 2022 | Computers, Materials & Continua2022，，5： | 0 |
| 20 | A Novel Auto-Annotation Technique for Aspect Level Sentiment Analysis显示文摘In machine learning,sentiment analysis is a technique to find and analyze the sentiments hidden in the text.For sentiment analysis,annotated data is a basic requirement.Generally,this data is manually annotated.Manual annotation is time consuming,costly and laborious process.To overcome these resource constraints this research has proposed a fully automated annotation technique for aspect level sentiment analysis.Dataset is created from the reviews of ten most popular songs on YouTube.Reviews of five aspects—voice,video,music,lyrics and song,are extracted.An N-Gram based technique is proposed.Complete dataset consists of 369436 reviews that took 173.53 s to annotate using the proposed technique while this dataset might have taken approximately 2.07 million seconds(575 h)if it was annotated manually.For the validation of the proposed technique,a sub-dataset—Voice,is annotated manually as well as with the proposed technique.Cohen’s Kappa statistics is used to evaluate the degree of agreement between the two annotations.The high Kappa value(i.e.,0.9571%)shows the high level of agreement between the two.This validates that the quality of annotation of the proposed technique is as good as manual annotation even with far less computational cost.This research also contributes in consolidating the guidelines for the manual annotation process. | Muhammad Aasim Qureshi Muhammad Asif Mohd Fadzil Hassan Ghulam Mustafa Muhammad Khurram Ehsan Aasim Ali Unaza Sajid | 2022 | Computers, Materials & Continua2022，，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员