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Application of GIS-based SCS-CN method in West Bank catchments,Palestine

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Water Science and Engineering 2010年第1期3卷 1-13页

作者： sameer SHADEED mohammad ALMASRI Department of Civil Engineering College of EngineeringAn-Najah National University

Among the most basic challenges of hydrology are the prediction and quantification of catchment surface runoff. The runoff curve number （CN） is a key factor in determining runoff in the SCS （Soil Conservation Service） based hydrologic modeling method. The traditional SCS-CN method for calculating the composite curve number is very tedious and consumes a major portion of the hydrologic modeling time. Therefore, geographic information systems （G/S） are now being used in combination with the SCS-CN method. This paper assesses the modeling of flow in West Bank catchments using the GIS-based SCS-CN method. The West Bank, Palestine, is characterized as an arid to semi-arid region with annual rainfall depths ranging between 100 mm in the vicinity of the Jordan River to 700 mm in the mountains extending across the central parts of the region. The estimated composite curve number for the entire West Bank is about 50 assuming dry conditions. This paper clearly demonstrates that the integration of GIS with the SCS-CN method provides a powerful tool for estimating runoff volumes in West Bank catchments, representing arid to semi-arid catchments of Palestine.

关键词： GIS SCS-CN method surface runoff West Bank catchments arid and semiarid regions

Cd and Hg Mediated Oxidative Stress,Antioxidative Metabolism and Molecular Changes in Soybean(Glycine max L.)

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Phyton-International Journal of Experimental Botany 2023年第6期92卷 1725-1742页

作者： Sheeba Naaz Nadeem Ahmad Asma AAl-Huqail mohammad irfan Faheema Khan mohammad irfan Qureshi Department of Biotechnology Faculty of Natural SciencesJamia Millia IslamiaNew Delhi110025India Department of Biosciences Faculty of Natural SciencesJamia Millia IslamiaNew Delhi110025India Department of Botany and Microbiology College of ScienceKing Saud UniversityRiyadh11451Saudi Arabia Plant Biology Section School of Integrative Plant ScienceCornell UniversityIthacaUSA

Cadmium(Cd)and Mercury(Hg)is among the heavy metals most hazardous for plant and human *** to induce oxidative stress in plants and disbalance equilibrium in the antioxidant defence system,these metals alter plant growth and cause damage at the cellular and molecular *** is an important oilseed crop that is raised in soils often contaminated by Cd and *** comparative studies on the deleterious effect of Cd and Hg and the defence system of antioxidants were not studied earlier in soybean *** this study,soybean plants were exposed to Cd(100μM CdCl_(2))and Hg(100μM HgCl_(2))and studied for physiological,biochemical and molecular *** Cd and Hg treatment increased the magnitude of oxidative *** of antioxidant enzymes were significantly upregulated in response to Cd and Hg *** and qualitative assessment of isolated RNA showed significant differences in RNA under *** values of RNA confirmed *** level of the Actin gene,involved in the morphogenesis of plants and also used as referenced gene in expression studies was analyzed using qRT-PCR just to check its stability and response under heavy metal *** showed significant upregulation of the gene in the presence of *** can be concluded that both Cd and Hg caused oxidative damage to plants,and adversely affected the quality of ***,soybean tried to limit the adverse impacts of Cd and Hg stress by elevating the antioxidant system and upregulating Actin gene.

关键词： Soybean heavy metal stress actin gene enzymatic antioxidant activity qRT-PCR

Flexural and Dynamic Mechanical Properties of Alkali-Treated Coir/Pineapple Leaf Fibres Reinforced Polylactic Acid Hybrid Biocomposites

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Journal of Bionic Engineering 2021年第6期18卷 1430-1438页

作者： Ramengmawii Siakeng mohammad Jawaid mohammad Asim Hassan Fouad sameer Awad Naheed Saba Suchart Siengchin Department of Mechanical and Process Engineering The Sirindhorn International Thai-GermanGraduate School of Engineering(TGGS)King Mongkut’s University of Technology North BangkokBangkok10800Thailand Laboratory of Biocomposite Technology Institute of Tropical Forestry and Forest Products(INTROP)Universiti Putra Malaysia43400 UPMSerdangSelangorMalaysia Applied Medical Science Department Community CollegeKing Saud UniversityP.O.Box 10219Riyadh11433Saudi Arabia Chemistry School of Science and TechnologyUniversity of New EnglandArmidaleNSW2351Australia

Polylactic acid(PLA)possesses good mechanical and biodegradability properties which make it a suitable material for polymer composites whereas brittleness and high costs limit its utilization in various *** reinforcement of natural fibres with biopolymers has been formed to be an efficient technique to develop composites having the ability to be fully *** study concerns with the incorporation of various percentages of untreated and alkali-treated Coir Fibres(CF)and pineapple leaf fibres(PALF)in PLA biocomposites and characterizations of flexural,morphological and dynamic mechanical *** properties showed that the treated C1P1 hybrid composites(C1P1A)displayed highest flexural strength(35.81 MPa)and modulus(5.28 GPa)among all hybrid *** Electron Microscopy(SEM)revealed a behaviour of fibre-matrix adhesion in untreated treated *** observation revealed good dispersion of the fillers in *** mechanical analysis revealed that C1P1A showed highest glass transition temperature(Tg)and storage modulus(E')while untreated C3P7 displayed the least Tg and E'.Overall findings showed that alkali-treated hybrid biocomposites(CF/PALF/PLA)especially C1P1A have improved flexural properties,dynamic and morphological properties over untreated *** of these findings will provide attracting consideration of these hybrid biocomposites for various lightweight uses in a broad selection of industrial applications such as biomedical sectors,automobile,construction,electronics equipment,and hardware tools.

关键词： Coir fibres Pineapple leaf fibres Biocomposites Polylactic acid Mechanical properties Dynamic mechanical properties

Evaporative/radiative electrospun membrane for personal cooling

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Nano Research 2023年第2期16卷 2563-2571页

作者： mohammad irfan Iqbal Shuo Shi Gokula Manikandan Senthil Kumar Jinlian Hu Institute of Textiles and Clothing The Hong Kong Polytechnic UniversityHong Kong 999077China Department of Biomedical Engineering City University of Hong KongHong Kong 999077China Department of Building Environment and Energy Engineering The Hong Kong Polytechnic UniversityHong Kong 999077China

Functional textiles that promote daily comfort and productivity must efficiently release body sweats and transmit radiative heat through sweat evaporation and mid-infrared radiation(MIR)(8–13μm).However,most of the traditional clothing cannot provide simultaneous sweat evaporation and mid-infrared radiation transmission efficiently,leading to a poor design of personal cooling ***,an evaporative/radiative integrated functional fibrous electrospun membrane is meticulously designed and controllably fabricated via facile electrospinning technology for personal cooling *** developed membrane can be applied as a smart wearable with distinct personal thermal management *** promising temperature and humidity responsive vapor transmission of the membrane grants 1.2 times of evaporative cooling than that of traditional ***,based on its high mid-infrared radiation transmission(53%)property in the range of 8–13μm,the as-spun membrane provides extra cooling of 1.5°C than that of ***,the building energy saving performances demonstrated that 47.1%annual building cooling can be achieved using the developed electrospun *** general,the evaporative/radiative electrospun membrane creates a passive cooling microclimate for the human body,meeting the growing demand of wearable for personal cooling.

关键词： building energy cooling management electrospinning evaporative cooling radiative cooling

Clastogenic ROS and biophotonics in precancerous diagnosis

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Frontiers in Biology 2018年第2期13卷 103-122页

作者： Muhammad Naveed mohammad Raees irfan Liaqat mohammad Kashif Department of Biotechnology Faculty of Life Sciences University Central Punjab Lahore 54000 Pakistan Department of Biochemistry and Biotechnology University of Gujrat Pakistan 50700 Pakistan

BACKGROUND： Cancer is the leading cause of death worldwide. The application of biophotonics for diagnosing precancerous lesions is a major breakthrough in oncology and is associated with the expression of clastogenic bio-markers, such as reactive oxygen species （ROS）, namely, superoxide anion radicals, hydrogen peroxide, hydroxyl radicals, and lipid peroxidation products. These ROS are the major sources of ultra-weak biophotons emission; in addition, biophotons are emitted from other biomolecules, which are not associated with ROS. The precancerous phase is diagnosed on the basis ofbiophoton emission from biomarkers. The type of biophotons emitted depends on the structure of the clastogenic ROS. METHODS： ROS-based emission of ultra-weak photons can be detected using charge coupled device （CCD） cameras and photomultiplier tubes. Furthermore, spectroscopic and microscopic analysis can yield more advanced and definite results. RESULTS： The frequency and intensity of biophoton emission associated with each ROS provides information regarding the precancerous phase. Previous have attempted to show an association between precancerous growth and biophoton emission; however, their results were not conclusive. In this review, we have addressed multiple aspects of the molecular environment, especially light- matter interactions, to derive a successful theoretical relationship which may have the ability to diaganose the tumor at precancerous stage and to give the solutions of previous failures. This can be a major quantum leap toward precancerous diagnosis therapy. CONCLUSION： Biophotonics provides an advanced framework, for easily diagnosing cancer at its preliminary stage. The relationship between biophotons, clastogenic factors, and biochemical reactions in the cellular microenvironment can be understood successfully. The advancement in precancerous diagnosis will improve human health worldwide. The versatility of biophotonics can be used further for novel applications in bi

关键词： biophotons CCD camera molecular environment oncology precancerous photomultiplier ROS

An Optimal DPM Based Energy-Aware Task Scheduling for Performance Enhancement in Embedded MPSoC

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Computers, Materials & Continua 2023年第1期74卷 2097-2113页

作者： Hamayun Khan irfan Ud Din Arshad Ali mohammad Husain Department of Electrical Engineering Faculty of Engineering&Technology Superior University Lahore54000Pakistan Department of Computer Science Faculty of Computer Science&IT Superior University Lahore54000Pakistan Faculty of Computer and Information Systems Islamic University of MadinahAl Madinah Al Munawarah42351Saudi Arabia

Minimizing the energy consumption to increase the life span and performance of multiprocessor system on chip(MPSoC)has become an integral chip design issue for multiprocessor *** performance measurement of computational systems is changing with the advancement in *** to shrinking and smaller chip size power densities onchip are increasing rapidly that increasing chip temperature in multi-core embedded *** operating speed of the device decreases when power consumption reaches a threshold that causes a delay in complementary metal oxide semiconductor(CMOS)circuits because high on-chip temperature adversely affects the life span of the *** this paper an energy-aware dynamic power management technique based on energy aware earliest deadline first(EA-EDF)scheduling is proposed for improving the performance and reliability by reducing energy and power consumption in the system on chip(SOC).Dynamic power management(DPM)enables MPSOC to reduce power and energy consumption by adopting a suitable core configuration for task *** migration avoids peak temperature values in the multicore *** utilization factor(ui)on central processing unit(CPU)core consumes more energy and increases the temperature *** technique switches the core bymigrating such task to a core that has less temperature and is in a low power *** proposed EA-EDF scheduling technique migrates load on different cores to attain stability in temperature among multiple cores of the CPU and optimized the duration of the idle and sleep periods to enable the low-temperature *** effectiveness of the EA-EDF approach reduces the utilization and energy consumption compared to other existing methods and *** simulation results show the improvement in performance by optimizing 4.8%on u_(i) 9%,16%,23%and 25%at 520 MHz operating frequency as compared to other energy-aware techniques for MPSoCs when the least number of tasks is in running state and can

关键词： Dynamic power management dynamic voltage&frequency scaling dynamic thermal management multiprocessor system on chip complementary metal oxide semiconductor reliability

One-dimensional numerical investigation on multicylinder gasoline engine fueled by micro-emulsions,CNG,and hydrogen in dual fuel mode

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Chinese Journal of Aeronautics 2023年第5期36卷 57-65页

作者： Ufaith QADIRI D.SIVA KRISHNA REDDY Amjad ALI PASHA mohammad irfan ALAM Department of Mechanical Engineering Sreenidhi UniversityYamnampetGhatkesar Hyderabad 501301India School of Mechanical Engineering SRM Institute of Science and TechnologyKattankulathurChennai 603203India Aerospace Engineering Department King Abdulaziz UniversityJeddah 21589Saudi Arabia Department of Aerospace Engineering VIT Bhopal UniversitySehore 466665India

This research work is the novel state-of-the-art technology performed on multi-cylinder SI engine fueled compressed natural gas,emulsified fuel,and hydrogen as dual *** work predicts the overall features of performance,combustion,and exhaust emissions of individual fuels based on AVL Boost simulation *** types of alternative fuels have been compared and *** results show that hydrogen produces 20%more brake power than CNG and 25%more power than micro-emulsion fuel at 1500 r/min,which further increases the brake power of hydrogen,CNG,and micro-emulsions in the range of 25%,20%,and 15%at higher engine speeds of 2500-4000 r/min,*** addition,the brake-specific fuel consumption is the lowest for 100%hydrogen,followed by CNG 100%and then micro-emulsions at 1500 r/*** 2500-5000 r/min,there is a significant drop in brake-specific fuel consumption due to a lean mixture at higher engine *** CO,HC,and NOx emissions significantly improve for hydrogen,CNG,and micro-emulsion *** fuel shows zero CO and HC emissions and is the main objective of this research to produce 0%carbon-based emissions with a slight increase in NOx emissions,and CNG shows 30%lower CO emissions than micro-emulsions and 21.5%less hydrocarbon emissions than micro-emulsion fuel at stoichiometric air/fuel ratio.

关键词： CNG Emissions Hydrogen Ignition Micro-emulsions Performance

There is plenty of room at the top:generation of hot charge carriers and their applications in perovskite and other semiconductor-based optoelectronic devices

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Light(Science & Applications) 2021年第9期10卷 1630-1657页

作者： irfan Ahmed Lei Shi Hannu Pasanen Paola Vivo Partha Maity mohammad Hatamvand Yiqiang Zhan State Key Laboratory of ASIC and System Centre of Micro-Nano SystemSISTFudan University200433ShanghaiChina Department of Physics Government Postgraduate College(Higher Education Department-HED)Khyber Pakhtunkhwa21300MansehraPakistan State Key Laboratory of Surface Physics Key Laboratory of Micro-and Nano-PhotonicsFudan University200433ShanghaiChina Faculty of Engineering and Natural Sciences Tampere UniversityFI-33014TampereFinland KAUST Solar Center Division of Physical Science and EngineeringKing Abdullah University of Science and Technology(KAUST)Thuwal23955-6900RiyadhKingdom of Saudi Arabia

Hot charge carriers(HC)are photoexcited electrons and holes that exist in nonequilibrium high-energy states of photoactive *** cooling time and rapid extraction are the current challenges for the development of future innovative HC-based optoelectronic devices,such as HC solar cells(HCSCs),hot energy transistors(HETs),HC photocatalytic reactors,and lasing *** on a thorough analysis of the basic mechanisms of HC generation,thermalization,and cooling dynamics,this review outlines the various possible strategies to delay the HC cooling as well as to speed up their *** materials with slow cooling behavior,including perovskites and other semiconductors,are thoroughly *** addition,the opportunities for the generation of plasmon-induced HC through surface plasmon resonance and their technological applications in hybrid nanostructures are discussed in *** judiciously designing the plasmonic nanostructures,the light coupling into the photoactive layer and its optical absorption can be greatly enhanced as well as the successful conversion of incident photons to HC with tunable energies can also be ***,the future outlook of HC in optoelectronics is highlighted which will provide great insight to the research community.

关键词： optoelectronic charge plenty

A selective approach to the surgical management of periampullary cancer patients and its outcome

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Hepatobiliary & Pancreatic Diseases International 2014年第6期13卷 628-633页

作者： Omar J Shah irfan Robbani Parveen Shah Sadaf A Bangri irfan J Khan mohammad Y Bhat Manmohan Singh Departments of Surgical Gastroenterology Sher-i-Kashmir Institute of Medical Sciences Srinagar Kashmir India Radiodiagnosis & Imaging Sher-i-Kashmir Institute of Medical Sciences Srinagar Kashmir India Pathology Sher-i-Kashmir Institute of Medical Sciences Srinagar Kashmir India Departments of Surgical Gastroenterology Sher-i-Kashmir Institute of Medical Sciences Srinagar Kashmir India Departments of Surgical Gastroenterology Sher-i-Kashmir Institute of Medical Sciences Srinagar Kashmir India

BACKGROUND： Pancreaticoduodenectomy is a high risk, complex, technically challenging operation associated with significant perioperative morbidity and mortality. This study on the surgical management of periampullary cancer patients is based on our experience in a period of nearly 13 years. METHODS： The study was conducted on two groups of patients： group A included 42 patients who were treated between January 2000 and September 2005 and group B included 134 patients who were treated between October 2005 to October 2012. Preoperative, intraoperative and postoperative details of all these patients were collected, tabulated and analyzed to assess the impact of the selective approach introduced in the department with effect from October 2005. RESULTS： Intraoperative details revealed highly significant differences in the management of the two groups of patients in respect of operative time （250.4 vs 126.6 minutes; P〈0.001）, operative blood loss （1070.2 vs 414.9 mL; P〈0.001） and intraoperative blood transfusion （1A vs 0.2 units; P〈0.001）. Variations between the two groups in the frequency of complications were found to be statistically insignificant. However, the difference between the two groups in the overall morbidity of patients （47.6% vs 26.1%; P=0.009） and the length of their hospital stay （11.8 vs 7.8 days; P〈0.001） were significant. CONCLUSION： A selective approach applied to the surgical management of periampullary cancer patients is a step in the right direction.

关键词： pancreaticoduodenectomy superior approach technique Whipple's operation