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| 1 | 金属-有机框架材料对废水中污染物的吸附研究进展显示文摘可用的清洁水资源缩减已成为全球面临的重要危机。引起该危机的主要原因是各种污染物因生产、生活或事故排入水体导致水体污染。因此,解决水资源危机的关键在于对污水处理和再生。多种污水处理和再生方法应运而生,其中吸附法因处理效率高、操作简便、成本低而被广泛应用到污水处理中。吸附法的关键在于吸附剂的选择和应用。应用于水处理的传统吸附剂,如活性炭、沸石、天然粘土、活性氧化铝等,在面对复杂水体环境和各种性质迥异的污染物时已不能符合水污染处理的更高标准。因此,新型吸附剂的开发与应用成为吸附领域研究热点。金属有机框架(Metal-organic frame,MOF)材料,一类金属离子或金属簇与有机配体之间自组装配位形成的化合物,具有高比表面积、高孔隙率和可控的孔结构,已成为吸附领域冉冉升起的新星。目前MOF材料作为水处理吸附剂的研究主要集中在:(1)各种MOF材料对不同污染物的吸附性能研究,以揭示相关吸附规律;(2)MOF材料自身功能化或MOF复合材料的制备,以改善自身稳定性,提高其吸附性能或实现选择性吸附;(3)MOF衍生碳吸附材料的研究,以应对恶劣水体环境或极端水处理条件。本文对单一MOF材料、功能化MOF材料、MOF衍生碳材料吸附去除水体中有机染料、其他有机污染物、重金属离子的相关研究进行了综述。概述了多种MOF材料对不同污染物的吸附性能,总结了针对吸附应用的多种MOF功能化方式及其吸附效果的改进,归纳了多种MOF衍生碳材料作为吸附剂在水处理中的应用,指出了目前MOF吸附材料在水处理中存在的主要问题,并提出了解决这些问题的思路。 | 附青山 张磊 张伟 Ismail Pir Muhammad 陈雪丹 龚敏 何平 王祖波 | 2021 | 材料导报2021,35,11: | 15 |
| 2 | Energy-efficient Virtual Machine Allocation Technique Using Flower Pollination Algorithm in Cloud Datacenter:A Panacea to Green Computing显示文摘Cloud computing has attracted significant interest due to the increasing service demands from organizations offloading computationally intensive tasks to datacenters.Meanwhile,datacenter infrastructure comprises hardware resources that consume high amount of energy and give out carbon emissions at hazardous levels.In cloud datacenter,Virtual Machines(VMs)need to be allocated on various Physical Machines(PMs)in order to minimize resource wastage and increase energy efficiency.Resource allocation problem is NP-hard.Hence finding an exact solution is complicated especially for large-scale datacenters.In this con text,this paper proposes an Energy-oriented Flower Pollination Algorithm(E-FPA)for VM allocation in cloud datacenter environments.A system framework for the scheme was developed to enable energy-oriented allocation of various VMs on a PM.The allocation uses a strategy called Dynamic Switching Probability(DSP).The framework finds a near optimal solution quickly and balances the exploration of the global search and exploitation of the local search.It considers a processor,storage,and memory constraints of a PM while prioritizing energy-oriented allocation for a set of VMs.Simulations performed on MultiRecCloudSim utilizing planet workload show that the E-FPA outperforms the Genetic Algorithm for Power-Aware(GAPA)by 21.8%,Order of Exchange Migration(OEM)ant colony system by 21.5%,and First Fit Decreasing(FFD)by 24.9%.Therefore,E-FPA significantly improves datacenter performance and thus,enhances environmental sustainability. | Mohammed Joda Usman Abdul Samad Ismail Hassan Chizari Gaddafi Abdul-Salaam Ali Muhammad Usman Abdulsalam Yau Gital Omprakash Kaiwartya Ahmed Aliyu | 2019 | Journal of Bionic Engineering2019,16,2: | 13 |
| 3 | 铝合金及铝金属基复合材料搅拌摩擦焊接工艺的研究进展显示文摘焊接在汽车、航空航天、机器人、建筑等行业具有重要的作用。这些行业常用非焊接方法制造很多铝合金零部件或系统。然而,由于不可热处理合金的存在、孔隙、凝固和熔融裂纹等因素,铝合金的熔焊具有挑战性。许多制造商采用传统的空气搅拌摩擦焊(FSW)焊接合金和异质材料,也有许多研究报道关于该传统FSW技术在焊接金属和聚合物材料,尤其是铝合金和铝基复合材料方面的缺点。近年来,为了克服传统FSW技术焊接铝合金的缺点,开发出很多其他FSW技术,例如水下搅拌摩擦焊(UFSW)和振动搅拌摩擦焊(VFSW)等。本文综述了近年来铝合金及铝基复合材料(AlMMCs)搅拌摩擦焊接工艺的研究进展,讨论了传统的FSW技术和最先进的FSW工艺参数对铝合金和铝基复合材料焊接质量和强度的影响,并比较了每种方法的优缺点。VFSW在能源效率和经济成本方面具有优势,并可根据应用情况进行多种改进,是焊接铝接头的一种可行的选择。然而,目前对Al MMCs搅拌摩擦焊的研究明显较少,这应给予足够的关注。 | John VICTOR CHRISTY Abdel-Hamid ISMAIL MOURAD Muhammad M.SHERIF B.SHIVAMURTHY | 2021 | Transactions of Nonferrous Metals Society of China2021,31,11: | 11 |
| 4 | Structural, morphological, Raman, optical, magnetic, and antibacterial characteristics of CeO2 nanostructures显示文摘In this study, CeO_2 nanostructures were synthesized by a soft chemical method. A hydrothermal treatment was observed to lead to an interesting morphological transformation of the nanoparticles into homogeneous microspheres composed of nanosheets with an average thickness of 40 nm. Structural analysis revealed the formation of a single-phase cubic fluorite structure of CeO_2 for both samples. A Raman spectroscopic study confirmed the XRD results and furthermore indicated the presence of a large number of oxygen vacancies in the nanosheets. These oxygen vacancies led to room-temperature ferromagnetism(RTFM) of the CeO_2 nanosheets with enhanced magnetic characteristics. Amazingly, the nanosheets exhibited substantially greater antibacterial activity than the nanoparticles. This greater antibacterial activity was attributed to greater exposure of high-surface-energy polar surfaces and to the presence of oxygen vacancies. | Fazal Abbas Javed Iqbal Tariq Jan Noor Badshah Qaisar Mansoor Muhammad Ismail | 2016 | International Journal of Minerals,Metallurgy and Materials2016,23,1: | 6 |
| 5 | Integration of time-reversal mirror technique in short baseline positioning显示文摘Short baseline(SBL) system is one of the most significant systems for underwater positioning.In shallow water or littoral environment the system faces problems of large error in delay estimation and system instability because of severe multi-path.To address those problems,this paper proposes a SBL system transmitting a wideband signal combined with time-reversal.The effect of multi-path propagation on response signal is compensated by time reversal focusing which is derived from the channel multi-path characteristics.Results of simulations and actual experiments in lake show that the proposed scheme reduces errors in delay estimation.It is proved that time reversal mirror improves the accuracy and precision of underwater vehicle navigation and positioning. | LI Zhuang QIAO Gang Muhammad Asim Ismail | 2013 | Chinese Journal of Acoustics2013,32,3: | 3 |
| 6 | A study on mul- ti-path channel response of acoustic propagation in northwestern Arabian Sea显示文摘 | Gang Qiao Asim Ismail Muhammad Aatiq | 2013 | Research Journal of Applied Sciences Engineering and Technology2013,5,19: | 1 |
| 7 | Tectonic Imprints of the Hazara Kashmir Syntaxis on the Mesozoic Rocks Exposed in Munda, Mohmand Agency, Northwest Pakistan显示文摘Two well-developed mesoscopic folds, D_2 and D_3, which postdate the middle amphibolite metamorphism, were recognized in the western hinterland zone of Pakistan. NW–SE trending D_2 folds developed during NE–SW horizontal bulk shortening followed by NE–SW trending D_3 folds, which developed during SE–NW shortening. Micro- to mesoscopically the NW–SE trending S2 crenulation cleavage, boudins and mineral stretching lineations are overprinted by D_3. The newly established NW–SE trending micro- to mesoscopic structures in Munda termed D_2, which postdated F_1/F_2, is synchronously developed with F3 structures in the western hinterland zone of Pakistan. We interpret that D_2 and D_3 folds are counterclockwise rotated in the tectonic event that has evolved the Hazara Kashmir Syntaxis after the main phase Indian plate and Kohistan Island Arc collision. Chlorite replacement by biotite in the main matrix crenulation cleavages indicates prograde metamorphism related with D_2. The inclusion of muscovite and biotite in garnet porphyroblasts and the presence of staurolite in these rocks indicate that the Barrovian metamorphic conditions predate D_2 and D_3. We interpret that garnet, staurolite and calcite porphyroblasts grew before D_2 because the well developed S2 crenulation cleavage wraps around these porphyroblasts. | Asghar ALI Umer HABIB Atta Ur REHMAN Noor ZADA Zain Ul ABIDIN Muhammad ISMAIL | 2016 | Acta Geologica Sinica(English Edition)2016,90,2: | 1 |
| 8 | Production of biogas from solid organic wastes through anaerobic digestion: a review显示文摘 | Ismail Muhammad Nasir Tinia Mohd Ghazi Rozita Omar | 2012 | Applied Microbiology and Biotechnology2012,,2: | 1 |
| 9 | Facile Synthesis as well as Structural, Raman, Dielectric and Antibacterial Characteristics of Cu Doped ZnO Nanoparticles显示文摘Here, undoped and Cu doped ZnO nanoparticles(NPs) have been prepared by chemical co-precipitation technique. X-ray diffraction(XRD) results reveal that Cu ions are successfully doped into ZnO matrix without altering its wurtzite phase. The single wurtzite phase of ZnO is retained even for 10 wt% Cu doped ZnO sample. It is observed from the electron microscopy results that higher level of Cu doping varies the morphology of ZnO NPs from spherical to flat NPs. Moreover, the particle size is found to increase with the increase in Cu doping level. Raman spectroscopy results further confirm that Cu dopant has not altered the wurtzite structure of ZnO. Impedance spectroscopy results reveal that the dielectric constant and dielectric loss have increasing trend with Cu doping. Cu doping has been found to slightly decrease the bactericidal potency of ZnO nanoparticles. | Javed Iqbal Nauman Safdar Tariq Jan Muhammad Ismail S.S.Hussain Arshad Mahmood Shaheen Shahzad Qaisar Mansoor | 2015 | Journal of Materials Science & Technology2015,31,3: | 1 |
| 10 | Performance of natural rubber latex modified concrete in acidic and sul- fated environments显示文摘 | Bala Muhammad Mohammad Ismail | 2012 | Construction and Building Ma- terials2012,,31: | 1 |
| 11 | Livelihood Diversification as an Adaptation Approach to Change in the Pastoral Hindu-Kush Himalayan Region显示文摘Migratory livestock raising has been one of the most important livelihood options for people residing in high mountain areas and has made a significant contribution to the economy of the Hindu Kush Himalayan(HKH) region, both in terms of supporting households and in export earnings. However, in recent decades, changes in the socioeconomic situation and increasing climate variability have led to a need to enhance adaptation by building the resilience of local socio-ecological systems, including economic diversification and sustainable management of natural resources. Based on semistructured interviews with pastoral communities in six countries within the pastoral HKH region, this paper discusses the situation, trends and driving forces behind the diversification of pastoral livelihood. For internal diversification the study highlights the need for enhancement of pastoral livelihoods through value-adding activities in the pastoral sectors. For external diversification changes on policy changes are needed to support free out-migration, market exploitation, and multiple resource use. Finally the paper highlights the role of education in determining household adaptation strategies in the face of various socio-ecological pressures and recommends integrating innovative and indigenous knowledge to develop appropriate methods for risk management and resource management in the pastoral HKH region. | WU Ning Muhammad ISMAIL Srijana JOSHI YI Shao-liang Ritu Meher SHRESTHA Abdul Wahid JASRA | 2014 | Journal of Mountain Science2014,11,5: | 1 |
| 12 | Childhood cerebral lupus in an Oriental population 显示文摘 | HAJI MUHAMMAD ISMAIL HUSSAIN I LOH W F SOFIAH A | 1999 | Brain Dev1999,21,4: | 1 |
| 13 | Cloud-based vs.blockchain-based IoT:a comparative survey and way forward显示文摘The Internet of Things(IoT)has been evolving for more than a decade.Technological advancements have increased its popularity,but concerns and risks related to IoT are growing considerably along with the increased number of connected devices.In 2013,a new cryptography-based infrastructure called blockchain emerged with the potential to replace the existing cloud-based infrastructure of IoT through decentralization.In this article,we provide a taxonomy of the challenges in the current IoT infrastructure,and a literature survey with a taxonomy of the issues to expect in the future of the IoT after adopting blockchain as an infrastructure.The two architectures are compared based on their strengths and weaknesses.Then a brief survey of ongoing key research activities in blockchain is presented,which will have considerable impact on overcoming the challenges encountered in the applicability of blockchain in IoT.Finally,considering the challenges and issues in both infrastructures and the latest research activities,we propose a high-level hybrid IoT approach that uses the cloud,edge/fog,and blockchain together to avoid the limitations of each infrastructure. | Raheel Ahmed MEMON Jian Ping LI Junaid AHMED Muhammad Irshad NAZEER Muhammad ISMAIL Khursheed ALI | 2020 | Frontiers of Information Technology & Electronic Engineering2020,21,4: | 1 |
| 14 | The transferability of bla OXA-23 gene in multidrug-resistant Acinetobacter baumannii isolates from Saudi Arabia and Egypt显示文摘 | Bruno Silvester Lopes Mohamed H. Al-Agamy Muhammad A. Ismail Atef M. Shibl Ahmed A. Al-Qahtani Mohammed N. Al-Ahdal Ken J. Forbes | 2015 | International Journal of Medical Microbiology2015,,: | 1 |
| 15 | The anti-biofouling effect of Piper betle extract against Pseudomonas aeruginosa and bacterial consortium显示文摘 | Muhammad Faisal Siddiqui Mimi Sakinah A.F. Ismail T. Matsuura A.W. Zularisam | 2011 | Desalination2011,,: | 1 |
| 16 | Intellectual Capital Effi- ciency and Firm's Performance: Study on Malaysian Fi- nancial Sectors显示文摘 | Muhammad N M N Ismail M K | 2009 | International Journal of Economics and Finance2009,,2: | 1 |
| 17 | 显示文摘 | Haji Muhammad Ismail Hussain I Loh WF Sofiah A | 1999 | Brain Dev1999,21,4: | 1 |
| 18 | Compressive strength loss and reinforcement degradations of reinforced concrete structure due to long-term exposure显示文摘 | Ismail M Muhammad B Ismail E G | 2010 | Construction & Building Materials2010,24,6: | 1 |
| 19 | Development ofa polygonum minus cell suspension culture system and analysis of secondary metabolites enhanced by elicitation显示文摘 | Muhammad Faizan A Shukor Ismanizan Ismail | 2013 | Acta Physiologiae Plantarum2013,35,5: | 1 |
| 20 | Production of biogas from solid organic wastes through anaerobic digestion: a review 显示文摘 | Muhammad Nasir Ismail Mohd Ghazi Tinia I Omar Rozita | 2012 | Applied Microbiology and Biotechnology2012,95,2: | 1 |