Failures of Waterworks Facilities and Their Consequences     

Malik  L. K.  Koronkevich  N. I.  Barabanova  E. A. 《Water Resources》2001,28(2):129-133

The causes of the failure of various dams, the existing approaches to determining the parameters of flood waves caused by dam failures, and the authors' method of calculation of these waves are considered. Characterization of the consequences of the dam-failure flood wave in the tailwater pool of the Volgograd hydroelectric station and some unfavorable aspects of possible evacuation of the Saratov reservoir are presented.  相似文献   

Active fault traces along Bhuj Fault and Katrol Hill Fault, and trenching survey at Wandhay, Kachchh, Gujarat, India     

Michio Morino  Javed N. Malik  Prashant Mishra  Chandrashekhar Bhuiyan  Fumio Kaneko 《Journal of Earth System Science》2008,117(3):181-188

Several new active fault traces were identified along Katrol Hill Fault (KHF). A new fault (named as Bhuj Fault, BF) that extends into the Bhuj Plain was also identified. These fault traces were identified based on satellite photo interpretation and field survey. Trenches were excavated to identify the paleoseismic events, pattern of faulting and the nature of deformation. New active fault traces were recognized about 1km north of the topographic boundary between the Katrol Hill and the plain area. The fault exposure along the left bank of Khari River with 10m wide shear zone in the Mesozoic rocks and showing displacement of the overlying Quaternary deposits is indicative of continued tectonic activity along the ancient fault. The E-W trending active fault traces along the KHF in the western part changes to NE-SW or ENE-WSW near Wandhay village. Trenching survey across a low scarp near Wandhay village reveals three major fault strands F1, F2, and F3. These fault strands displaced the older terrace deposits comprising Sand, Silt and Gravel units along with overlying younger deposits from units 1 to 5 made of gravel, sand and silt. Stratigraphic relationship indicates at least three large magnitude earthquakes along KHF during Late Holocene or recent historic past.  相似文献   

Analysis of geological structure and anthropological factors affecting arsenic distribution in the Lahore aquifer,Pakistan   总被引：1，自引：0，他引：1  

Akhtar Malik Muhammad  Tang Zhonghua  Zakari Sissou  Bahaa Mohamadi  Muhsan Ehsan 《Hydrogeology Journal》2016,24(7):1891-1904

This study investigated the potential factors affecting arsenic concentration in the groundwater system of Lahore, Pakistan. The effects of several factors such as population density (PD), pumping rate (PR), impermeable land use (LU), surface elevation (SE), and water-table elevation (WL) on arsenic concentration were studied in 101 union councils of Lahore. Forty single and multi-factor models were established using geographic information system (GIS) techniques to develop an arsenic contamination map and to investigate the most effective combinations among factors. Additionally, statistical tests were used to evaluate arsenic concentration between classes of the same single factor. The arsenic concentration in the Lahore aquifer varied from 0.001 to 0.143 mg L^?1. The highest arsenic concentrations were detected in the Walled City and the town of Shahdara. Among the 40 raster models, groundwater arsenic concentration showed the best matching frequency with single-factor models for PD (50.70 %) and SE (47 %). Thus, PD and SE were used to develop an arsenic distribution raster map, and they were also used to study the effect of aquifer depth on arsenic concentration. PD was found to have hidden latent variables such as PR and LU. The shallow aquifer depth was negatively correlated with arsenic concentration (r?=??0.23) and positively with PR (r?=?0.15). Therefore, when there was high PR in wells with smaller aquifer depth, the arsenic concentration was high. The existing water treatment and alternative water resources are good options, which should be developed to deal with Lahore wells contaminated with arsenic at high concentrations.  相似文献   

Batch adsorption studies of the removal of methyl violet 2B by soya bean waste: isotherm,kinetics and artificial neural network modelling     

Muhammad Raziq Rahimi Kooh  Muhammad Khairud Dahri  Linda B. L. Lim  Lee Hoon Lim  Owais Ahmed Malik 《Environmental Earth Sciences》2016,75(9):783

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Contributions from Particles in Europe (PiE) 2010, Villefranche-sur-Mer,France: an introduction     

Ole?A.?MikkelsenEmail author  Malik?Chami  David?Doxaran 《Geo-Marine Letters》2012,32(2):85-87

This special issue of Geo-Marine Letters presents selected contributions from the international conference Particles in Europe (PiE) 2010 organized by Sequoia Scientific, Inc., and the Laboratoire d’Océanographie de Villefranche (LOV) on 15–17 November 2010 in Villefranche-sur-Mer, France, and guest-edited by Ole Mikkelsen, Malik Chami and David Doxaran. PiE was initiated in 2008, in order to promote and further our understanding of the importance of suspended particulate matter (SPM) for a very wide range of processes in the aquatic environment—from optics and acoustics, over sediment transport, to the global carbon balance. The papers in this special issue are in particular concerned with the interaction between SPM and water optical properties, as well as how to use optical proxy measurements to understand SPM processes. The next PiE conference is scheduled for 17–19 October 2012 in Barcelona, Spain.  相似文献   

Adsorption of Brilliant Green Dye on Biochar Prepared From Lignocellulosic Bioethanol Plant Waste          下载免费PDF全文

Muhammad Saif Ur Rehman  Ilgook Kim  Naim Rashid  Malik Adeel Umer  Muhammad Sajid  Jong‐In Han 《洁净——土壤、空气、水》2016,44(1):55-62

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Phytoremediation Potential of Hemp (Cannabis sativa L.): Identification and Characterization of Heavy Metals Responsive Genes          下载免费PDF全文

Rafiq Ahmad  Zara Tehsin  Samina Tanvir Malik  Saeed Ahmad Asad  Muhammad Shahzad  Muhammad Bilal  Mohammad Maroof Shah  Sabaz Ali Khan 《洁净——土壤、空气、水》2016,44(2):195-201

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Distribution,Risk Assessment,and Source Identification of Heavy Metals in Surface Sediments of River Soan,Pakistan          下载免费PDF全文

Summya Nazeer  Muhammad Zaffar Hashmi  Riffat Naseem Malik 《洁净——土壤、空气、水》2016,44(9):1250-1259

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Four major unknown active faults identified,using satellite data,in India and Pakistan portions of NW Himalaya     

Shah  A. A.  Malik  Javed N. 《Natural Hazards》2017,88(3):1845-1865

Natural Hazards - New mapping through geomorphic analysis of tectonic landforms using a variety of freely available satellite data, including shuttle radar topography and Google Maps, has revealed...  相似文献   

Dynamics of energy sector and GHG emissions in Saudi Arabia     

A. N. Khondaker  Karim Malik  Nahid Hossain  Shaikh Abdur Razzak  Rouf Ahmad Khan 《Climate Policy》2013,13(4):517-541

The energy sector is the main contributor to GHG emissions in Saudi Arabia. The tremendous growth of GHG emissions poses serious challenges for the Kingdom in terms of their reduction targets, and also the mitigation of the associated climate changes. The rising trend of population and urbanization affects the energy demand, which results in a faster rate of increase in GHG emissions. The major energy sector sources that contribute to GHG emissions include the electricity generation, road transport, desalination plants, petroleum refining, petrochemical, cement, iron and steel, and fertilizer industries. In recent years, the energy sector has become the major source, accounting for more than 90% of national CO₂ emissions. Although a substantial amount of research has been conducted on renewable energy resources, a sustainable shift from petroleum resources is yet to be achieved. Public awareness, access to energy-efficient technology, and the development and implementation of a legislative framework, energy pricing policies, and renewable and alternative energy policies are not mature enough to ensure a significant reduction in GHG emissions from the energy sector. An innovative and integrated solution that best serves the Kingdom's long-term needs and exploits potential indigenous, renewable, and alternative energy resources while maintaining its sustainable development stride is essential.

Policy relevance

The main contributor to GHG emissions in Saudi Arabia is the energy sector that accounts for more than 90% of the national CO₂ emissions. Tremendous growth of GHG emissions poses serious challenges for the Kingdom in their reduction and mitigating the associated climate changes. This study examines the changing patterns of different activities associated with energy sector, the pertinent challenges, and the opportunities that promise reduction of GHG emissions while providing national energy and economic security. The importance of achieving timely, sustained, and increasing reductions in GHG emissions means that a combination of policies may be needed. This study points to the long-term importance of making near- and medium-term policy choices on a well-informed, strategic basis. This analytical paper is expected to provide useful information to the national policy makers and other decision makers. It may also contribute to the GHG emission inventories and the climate change negotiations.  相似文献