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Recent snow cover variation in the Upper Indus Basin of Gilgit Baltistan, Hindukush Karakoram Himalaya

Journal of Mountain Science 2019年第2期16卷 296-308页

作者： Hazrat BILAL CHAMHURI Siwar mazlin Bin mokhtar KASTURI Devi Kanniah Institute for Environment and Development (LESTARI) Universiti Kebangsaan Malaysia The National University of Malaysia (UKM) Centre for Environmental Sustainability and Water Security (IPASA) Research Institute for Sustainable Environment (RISE) Faculty of Geoinformation and Real Estate University Technology Malaysia (UTM)

Mountainous basins like the Upper Indus Basin(UIB) of Gilgit Baltistan(GB) are dependent on seasonal snowmelt and glacier melt. Monitoring of the snow-covered area(SCA) is not only vital for the overall hydrology of the Indus basin but also important to the sustainable agriculture and hydropower system. The snow-covered area in the UIB of GB was investigated for changes over the last 18 years using the Moderate Resolution Imaging Spectroradiometer(MODIS) snow product. The study area was divided into five elevation zones ranging from 877-8564 meters above sea level(m ASL). In contrast to the global cryosphere related studies, SCA in the UIB is slightly increasing. Elevation based SCA analysis also indicated that SCA is slightly increasing in each elevation zone. However, a significant amount of snow is concentrated in areas above 5000 m ASL. Due to the strong correlation between SCA and precipitation, the precipitation data also follow a similar trend. Analysis of the climatic data suggests a statistically significant increase in total monthly precipitation and relative humidity, a slight decrease in mean monthly temperature and a significant upward tendency in monthly solar irradiance data. All these trends in combination with the increasing trend in global precipitation, winter westerly disturbances and orographic precipitation are the important factors behind the slightly increasing SCA in the study area. Our results though constrained by short observation period mainly contribute to the understanding of advancing snow cover and glaciers in Hindukush Karakoram.

关键词： Snow MODIS Westerly disturbances Climate change Upper Indus Basin Glaciers

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The Transition of Belt and Road Initiative from 1.0 to 2.0:Challenges and Implications of Green Development

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Fudan Journal of the Humanities and Social Sciences 2023年第3期16卷 293-328页

作者： Rui Wang Khai Ern Lee mazlin mokhtar Thian Lai Goh Institute for Environment and Development(LESTARI) Universiti Kebangsaan MalaysiaBangiMalaysia School of Management Guizhou University of CommerceGuiyangChina Jeffrey Sachs Center on Sustainable Development Sunway UniversitySunway CityMalaysia Sustainable Development Solutions Network(SDSN)Asia Sunway UniversitySunway CityMalaysia Faculty of Science and Technology Universiti Kebangsaan MalaysiaBangiMalaysia

China claims that the Belt and Road Initiative is a cross-regional comprehensive initiative covering the economy,social and environmental *** it was first proposed,it identified five main areas which call for cooperation priorities,*** coordination,interconnection of facilities,unimpeded trade,financial integration and people-to-people *** globally are focusing on the development of the Belt and Road Initiative as it has gone through several development *** Belt and Road Initiative initially focused on economic development,equal dialogue and cultural interchange between the Belt and Road Initiative partners and China,and now it has added the concept of green *** paper reviews the Belt and Road Initiative documents since 2013 and analyses the changes of environmental policies in the Belt and Road Initiative,aiming to identify the challenges and implications of green *** outcome of this paper provides insight into how the Belt and Road Initiative can contribute towards sustainable development with its partner countries.

关键词： China Belt and Road Initiative Environment Green development Sustainable development

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Coastline Security Engineering Using Geo-Spatial Approach: Case of Chabahar Port, Iran

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Journal of Geographic Information System 2014年第3期6卷 236-245页

作者： Sharareh Pourebrahim Mehrdad Hadipour mazlin Bin mokhtar Department of Environment Faculty of Agriculture and Natural Resources Arak University Arak Iran Department of Environment Faculty of Natural Resources University of Tehran Tehran Iran Institute for Environment and Development (LESTARI) National University Malaysia (UKM) Bangi Malaysia

Regarding the special potential of ports located on international coastlines such as Makoran Sea (Iran) for goods and human smuggling, national level of coastline security is very important. They can play a significant role in the development of power and security. Based on military reviews and analyses, police location and monitoring field view in the coastlines are strategic issues in modern security development. This research proposes a tool for development of coastal roads and coastal walking routes in the deployment of police. The main focuses are monitoring field view and accessibility to the strategic coastline. GIS tool plays an essential role in producing important security maps. Chabahar Port in Iran, as the most important port of Makoran Sea, has been selected as the study area, regarding its strategic role in the national economy and security. Research method focused on these major axes: successful establishment of police stations in shoreline for increasing monitoring and coastal security and suitable patrol of patrol police car in the coastal roads. This study adopts a scientific approach to the analysis of the present and future development in urban and security planning in coastal towns in the national and regional levels.

关键词： Security Coastline Geo-Spatial Approach

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Major ions characteristics in a disturbed aquifer of an oceanic island—Sipadan, Malaysia

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Chinese Journal Of Geochemistry 2006年第B8期25卷 151-152页

作者： Mohd Harun Abdullah Baba musta mazlin mokhtar Ahmad Zaharin Aris Universiti Malaysia Sabah School of Science ＆ Technology Kota Kinabalu Sabah Malaysia Universiti Kebangsaan Malaysia Lestari Bangi Selangor Malaysia

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Wave propagation of a functionally graded plate via integral variables with a hyperbolic arcsine function

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Earthquake Engineering and Engineering Vibration 2024年第3期23卷 547-561页

作者： mokhtar Ellali mokhtar Bouazza Ashraf M.Zenkour Smart structures Laboratory University of Ain TemouchentAin Temouchent 46000Algeria Department of Civil Engineering University Tahri Mohamed of BecharBechar 08000Algeria Department of Mathematics Faculty of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia Laboratory of Materials and Hydrology(LMH) University of Sidi Bel AbbesSidi Bel Abbes 22000Algeria Department of Mathematics Faculty of ScienceKafrelsheikh UniversityKafrelsheikh 33516Egypt

Several studies on functionally graded materials(FGMs)have been done by researchers,but few studies have dealt with the impact of the modification of the properties of materials with regard to the functional propagation of the waves in *** work aims to explore the effects of changing compositional characteristics and the volume fraction of the constituent of plate materials regarding the wave propagation response of thick plates of *** model is based on a higher-order theory and a new displacement field with four unknowns that introduce indeterminate integral variables with a hyperbolic arcsine *** FGM plate is assumed to consist of a mixture of metal and ceramic,and its properties change depending on the power functions of the thickness of the plate,such as linear,quadratic,cubic,and inverse *** utilizing Hamilton’s principle,general formulae of the wave propagation were obtained to establish wave modes and phase velocity curves of the wave propagation in a functionally graded plate,including the effects of changing compositional characteristics of materials.

关键词： FGM plate effects of material properties wave propagation indeterminate integral variables inverse sinus hyperbolic function

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Water productivity for living aquatic resources in floodplains of Northwestern Bangladesh

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Journal of Coastal Life Medicine 2014年第4期 324-331页

作者： Md.Istiaque Hossain Md.Mahmudul Alam Chamhuri Siwar Madan Mohan Dey mazlin mokhtar Abdul Hamid Jaafar Md.Yeamin Hossain Department of Fisheries Faculty of AgricultureUniversity of RajshahiBangladesh Institute for Environment and Development(LESTARI) Universiti Kebangsaan Malaysia(UKM)43600 UKM BangiSelangorMalaysia Aquaculture Economics and Marketing Aquaculture/Fisheries CenterUniversity of Arkansas Pine BluffUSA School of Economics Universiti Kebangsaan Malaysia 43600 SelangorMalaysia

Objective:To measure the productivity of water on the floodplain land in terms of fisheries and living aquatic resources based on two floodplain beels in ***:Among two beels,beel Mail is practicing community based fish culture management,and beel Chandpur is open access and improperly *** production and market price data of fish,snail,and aquatic plants were collected by direct observation based on 30 samples fishers in the year *** study also collected production related water quality data,such as water temperature,pH and dissolved ***:The water quality data are found within the normal *** aggregated water productivity values based on production costs were TK 8016.23 ha^(-1)and TK 3912.9 ha^(-1)and based on all cost TK 7160.97 ha^(-1)and TK 3741.13 ha^(-1)at beel Mail and beel Chandpur,*** contribution of fish,snails and aquatic resources were 96.50%,3.10%,and 0.40%of the gross aggregated water produced in beel Mail and 87.85%,8.38%,and 3.77%in the beel *** water productivity values in beel Mail are higher than in beel Chandpur due to the intervention of community based fish ***:The proper management and techniques of harvesting fish through appropriate number of fish fingerlings stocked,good quality of fish fingerlings,size of beel,good fencing and well defined embankment,*** help to improve the productivity of water in the beel areas.

关键词： Bangladesh Community based-management Floodplain Water productivity

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Impact of Climate Change on Regional Hydroclimate Projection in Peninsular Malaysia

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Journal of Environmental Science and Engineering(A) 2012年第1期1卷 41-45页

作者： Mohd Ekhwan Toriman mazlin Bin mokhtar Rahmah E1-fithri NorAzlina Abdul Aziz Md．Pauzi Abdullah Muhamad Barzani Gasim School of Development and Environmental Studies FSSK University Kebangsaan MalaysiaBangi Selangor 43600Malaysia Institute for Environment and Development LESrARO University Kebangsaan MalaysiaBangi Selango 43600Malaysia School of Chemical Sciences and Food Technology University Kebangsaan MalaysiaBangi Selangor 43600Malaysia School of Environmental Sciences and Natural Resource University Kebangsaan MalaysiaBangi Selangor 43600Malaysia

For the assessment of the impact of future climate change on the hydrologic regime and water resources of Peninsular Malaysia, it is necessary to downscale the climate change simulations of a coarse scale General Circulation Model to the region of Peninsular Malaysia at fine grid resolution. This paper presents a desktop review of the state of climate change parameters, namely rainfall and river flow over the Peninsular Malaysia for the 2041-2050 projection period. Analysis of the results from the models shows there will be a substantial increase in mean monthly precipitation over the North East Coastal region from historical 259.5 mm to 281.5 mm, from 289.0 mm to 299.0 mm and 221.8 mm to 239.5 mm over Terengganu and Kelantan, respectively. Meanwhile, for river flow projection, it will be an expected increase in interannual and intraseasonal variability with increased hydrologic extremes （higher high flows, and lower low flows） at Kelantan, Pahang, Terengganu, and Kedah watersheds in the future.

关键词： Climate change peninsular Malaysia rainfall river flow.

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Assessment of micro-scale heat exchangers efficiency using lattice Boltzmann method and design of experiments

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Energy and Built Environment 2024年第6期5卷 840-852页

作者： mokhtar Ferhi Sameh Abidi Ridha Djebali Fateh Mebarek-Oudina UR22ES12:Modeling Optimization and Augmented Engineering ISLAIBUniversity of JendoubaBéja 9000Tunisia Higher Institute of Humanities of Jendouba University of JendoubaTunisia Department of Management Information Systems College of Business AdministrationQassim UniversityAl-RassAl-QassimSaudi Arabia Department of Physics Faculty of SciencesUniversity of 20 août 1955-SkikdaB.P 26 Road El-HadaiekSkikda 21000Algeria Laboratoire des Matériaux et Génie Energétique(LMGE) University of 20 août 1955-SkikdaSkikda 21000Algeria

The study is focused on the use of nanofluids in a micro-open tall cavity,which is a type of micro heat exchanger(MHE).The cavity is heated from the bottom sidewall in a sinusoidal pattern,and the effects of four input parameters(Ra,Ha,Kn,and Vf)on heat transfer and irreversibility are investigated using numerical simulations based on Lattice Boltzmann Method(LBM).The findings of the study suggest that the local heat transfer on the bottom sidewall is strongly influenced by Ra and Ha,while the surface distribution of entropy generation is mainly dependent on *** study also shows that the optimization of the magnitude and wavelength of the sinusoidal temperature can improve both local heat transfer and surface distribution of entropy *** results of the study provide valuable insights into the design of micro heat exchangers and suggest that the optimization of micro-porous geometries using DOE could lead to increased energy *** study contributes to our understanding of the complex interactions between input parameters in micro heat exchangers and highlights the importance of considering multiple parameters in the design process.

关键词： MHD Slip flow regime Micro heat exchanger Design of experiments Optimization

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Evolution of the“ancient Kedah”:A study on urban forms at Sungai Batu Archaeological Complex(SBAC),Bujang Valley,Kedah,Malaysia

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Frontiers of Architectural Research 2024年第1期13卷 127-143页

作者： Mohd Hasfarisham Abd Halim Naizatul Akma Mohd mokhtar Nor Khairunnisa Talib Shyeh Sahibul Karamah Masnan Ahmad Fadly Jusoh mokhtar Saidin Kedah Malaysia Universiti Utara Malaysia KedahMalaysia Universiti Sains Malaysia PenangMalaysia

Archaeological research at the Sungai Batu Archaeological Complex(SBAC),which has been carried out until 2023,aims to complete the chronological data and urbanization process of the ancient *** study will especially prove that the ongoing urbanization process is aimed at developing the iron smelting industry and trade in ancient Kedah,especially in *** is because archaeological research at SBAC has proven that with the existence of the ancient Kedah iron smelting workshop at SBAC,river jetties,port management,rituals,and Buddhist monuments began to be erected,all of which can be determined by chronometric *** results of the chronometric dating have proven that the ancient Kedah Kingdom existed since the 6th century BC and was oriented towards the trade of iron resources,which allowed the use of the area to grow *** process of urbanization and land use clearly conforms to Lynch’s principle,which emphasizes the principles of 1)paths,2)edges,3)districts,4)nodes,and 5)landmarks in the development process of land use and urbanization in the complex.

关键词： Chronometric dating Urbanization Land use Monument Iron smelting site

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Research progress in friction stir processing of magnesium alloys and their metal matrix surface composites: Evolution in the 21^(st )century

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Journal of Magnesium and Alloys 2024年第6期12卷 2091-2146页

作者： Roshan Vijay Marode Tamiru Alemu Lemma Nabihah Sallih Srinivasa Rao Pedapati mokhtar Awang Adeel Hassan Department of Mechanical Engineering Universiti Teknologi PETRONASBandarSeri IskandarPerak 32610Malaysia Department of Mechanical Engineering College of EngineeringThe University of Texas Permian BasinMidland-OdessaUnited States Mechanical Engineering Department Universiti Teknologi BruneiBrunei

Rising concerns about climate change drive the demand for lightweight ***(Mg)alloys are highly valued for their low weight,making them increasingly important in various *** focusing on enhancing the characteristics of Mg alloys and developing their Metal Matrix Composites(MMCs)have gained significant attention worldwide over the past decade,driven by the global shift towards lightweight *** Stir Processing(FSP)has emerged as a promising technique to enhance the properties of Mg alloys and produce ***,FSP adapted to refine grain size from the micro to the nano level and accelerated the development of MMCs due to its solid-state nature and the synergistic effects of microstructure refinement and reinforcement,improving strength,hardness,ductility,wear resistance,corrosion resistance,and fatigue ***,producing defect-free and sound FSPed Mg and Mg-MMCs requires addressing several variables and their interdependencies,which opens up a broad range of practical *** existing reviews on individual FSP of Mg,its alloys,and MMCs,an attempt has been made to analyze the latest research on these three aspects collectively to enhance the understanding,application,and effectiveness of FSP for Mg and its *** review article discusses the literature,classifies the importance of Mg alloys,provides a historical background,and explores developments and potential applications of FSPed Mg *** focuses on novel fabrication methods,reinforcement strategies,machine and tool design parameters,material characterization,and integration with other methods for enhanced *** influence of process parameters and the emergence of defects are examined,along with specific applications in mono and hybrid composites and their microstructure *** study identifies promising reinforcement materials and highlights research gaps in FSP for Mg alloys and MMCs *** conclude

关键词： Magnesium alloys Friction stir processing Metal matrix composites Lightweight Surface modification

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