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| 1 | Investigations on the Effect of Electrical Contact Degradation on High Speed Wide-Band Signal Integrity显示文摘Electrical contact degradation will affect the signal integrity resulting in poor communication performance.In the present work,the effect of electrical contact degradation on wide-band digital signal integrity was studied using both the theoretical analysis and experimental testing.The characteristics of digital signals with rise times of 200 ps,400 ps,600 ps and 800 ps through connectors with different degradation levels were studied.The maximum bandwidth of these signals can reach up to 1.75 GHz.An equivalent model of the connector with degraded contact surface was developed and the experimental results are consistent with the model results approximately.The influence of capacitance characteristics caused by degraded contact surface on digital signal waveform was calculated and analyzed.The results of this paper are helpful in developing a better understanding of the characteristics of wide-band digital signal waveforms through the degraded contact surface and provide a theoretical support to identify failure features in fault diagnosis. | WANG Ziren GAO Jinchun JI Rui BILAL Hafiz Muhammad | 2020 | Chinese Journal of Electronics2020，29，3： | 1 |
| 2 | 生物催化进展:从计算到代谢工程(英文)显示文摘经过数次技术研究和超常创新战略的大发展,生物催化逐渐达到工业化水平,从而受到人们特别的关注.基于酶值,通过生物途径生产高附加值化合物和精细工业化学品成为人们最感兴趣的领域之一.更广泛的众多生物化学路线可由酶催化来实现,其中还有一些酶尚未被人们发现.另一方面,由于非同源底物和某些化学过程所必需的苛刻条件,导致酶催化过程的效率低、稳定性差,因而限制了生物催化的应用.因此,开发具有多催化特征、更高效率和稳定性的绿色催化剂,成为生物催化的重中之重.计算科学、代谢工程、合成生物,以及机器学习路线的运用为新催化剂的工程化提供了新方法.本文重点介绍了合成生物学和代谢工程在催化中的作用,讨论了用于催化的机器学习算法和如何选择一种预测蛋白质-配体相互作用的算法;为了预测键合和催化功能,综述了分子对接的重要性;最后给出了结束语、未来挑战和前景展望. | Aqib Zafar Khan Muhammad Bilal Tahir Rasheed Hafiz M.N.Iqbal | 2018 | Chinese Journal of Catalysis2018，39，12： | 1 |
| 3 | Sponge-based materials for oil spill cleanups: A review显示文摘Elimination of leaked oil from aquatic environs has recently gained importance owing to the disasters associated with leakages into marine environments.The need for an environmentally friendly and viable line of action concerning the environs has brought forward numerous affordable,non-toxic,and decomposable materials;further,diverse biomasses for fabricating nano-to micro-scale materials,membranes,and sponges/aerogels have also been incorporated for the elimination and retrieval of oils from water.Moreover,selectivity,sorption capacity,and reusability of these materials after the retrieval of oils are also desired from the viewpoint of sustainability.This review encompasses the recent progress in the field of elimination and retrieval of oil spills using various sponge-based materials. | Edward Mohamed Hadji Bo Fu Ayob Abebe Hafiz Muhammad Bilal Jingtao Wang | 2020 | Frontiers of Chemical Science and Engineering2020，14，5： | 1 |
| 4 | IoTFLiP: IoT-based flipped learning platform for medical education显示文摘 | Maqbool Ali Hafiz Syed Muhammad Bilal Muhammad Asif Razzaq Jawad Khan Sungyoung Lee Muhammad Idris Mohammad Aazam Taebong Choi Soyeon Caren Han Byeong Ho Kang | 2017 | Digital Communications and Networks2017，3，3： | 0 |
| 5 | Engineered Hybrid Materials with Smart Surfaces for Effective Mitigation of Petroleum-Originated Pollutants显示文摘The generation and controlled or uncontrolled release of hydrocarbon-contaminated industrial wastewater effluents to water matrices are a major environmental concern.The contaminated water comes to surface in the form of stable emulsions,which sometimes require different techniques to mitigate or separate effectively.Both the crude emulsions and hydrocarbon-contaminated wastewater effluents contain suspended solids,oil/grease,organic matter,toxic elements,salts,and recalcitrant chemicals.Suitable treatment of crude oil emulsions has been one of the most important challenges due to the complex nature and the substantial amount of generated waste.Moreover,the recovery of oil from waste will help meet the increasing demand for oil and its derivatives.In this context,functional nanostructured materials with smart surfaces and switchable wettability properties have gained increasing attention because of their excellent performance in the separation of oil–water emulsions.Recent improvements in the design,composition,morphology,and fine-tuning of polymeric nanostructured materials have resulted in enhanced demulsification functionalities.Herein,we reviewed the environmental impacts of crude oil emulsions and hydrocarbon-contaminated wastewater effluents.Their effective treatments by smart polymeric nanostructured materials with wettability properties have been stated with suitable examples.The fundamental mechanisms underpinning the efficient separation of oil–water emulsions are discussed with suitable examples along with the future perspectives of smart materials. | Nisar Ali Muhammad Bilal Adnan Khan Farman Ali Mohamad Nasir Mohamad Ibrahim Xiaoyan Gao Shizhong Zhang Kun Hong Hafiz MNIqbal | 2021 | Engineering2021，7，10： | 0 |
| 6 | New Discovery of Hipparion theobaldi Skull from the Late Miocene of Padhri,District Jhelum,Punjab,Pakistan and Associated Mammalian Fossil Assemblage显示文摘A fossil-bearing locality near Padhri village,Dhok Pathan,55 km away from the tehsil Dina,Jhelum District,in the Potwar Plateau,Middle Siwaliks,Punjab,northern Pakistan,is significantly rich in mammalian fossils.This site has provided an abundant mammalian fossil fauna of Late Miocene age from the Dhok Pathan Formation(Fm.).The recovered material belongs to four families:Equidae(horses),Rhinocerotidae(rhinos),Bovidae(cows),and Suidae(pigs).We discovered a new skull of hipparionine Hipparion theobaldi from this locality along with 22 specimens from the associated assemblage of fossil mammals.The recovered material includes seven other species:the aceratheriine Chilotherium intermedium,boselaphines Tragoportax punjabicus,Selenoportax vexillarius,Pachyportax latidens,the antelope Gazella lydekkeri and suinine Propotamochoerus hysudricus.The specimens are isolated teeth,fragments of maxilla,mandibles and horn cores.The Dhok Pathan Fm.is generally composed of claystone,siltstone and sandstone beds and,based on the mammalian fauna,the Padhri fossil locality is dated as Late Miocene.Thi99 s formation was deposited in a subtropical paleoenvironment and the predominance of fossil bovids indicates extremely moist conditions with small but frequent standing water bodies. | Khizar SAMIULLAH Omer DRAZ Riffat YASIN Bilal RASOOL Hafiz MUHAMMAD ISHAQ Muhammad HARIS AZIZ Rana MEHROZ FAZAL Shakila NAZ Tehreem RAZA Romesa NIAZI | 2022 | Acta Geologica Sinica(English Edition)2022，96，4： | 0 |
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