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Assessment of Climate Variability and Agricultural Activities in the Area of Tadla Plain

Journal of Geoscience and Environment Protection 2023年第11期11卷 1-26页

作者： Yousra el Baki khalid Boutoial Abdelouahid Medaghri-Alaoui Laboratory of the Chemistry and Environment Faculty of Science and Technology Sultan Moulay Slimane University Beni Mellal Morocco Laboratory of the Engineering and Applied Technologies Higher School of Technology Sultan Moulay Slimane University Beni Mellal Morocco

The variations in both precipitation and temperature have far-reaching effects on agricultural activities and the accessibility of water resources. These climatic parameters are pivotal in determining the availability of both groundwater and surface water for agricultural use. The aim of this study was to evaluate the variations in climate parameters, focusing on precipitation and temperature, alongside changes in cultivated land area and crop yields in the Tadla area (Béni Mellal Khénifra region, Morocco);additionally, our research looks at the changes in water inflow into two dams and four aquifers. Trends were assessed over the period of 2010-2020 using the standardized precipitation index (SPI) method, as well as the parametric regression method and nonparametric Mann-Kendall and Sen’s slope test. This analysis can be a preliminary step in demonstrating the effects of climate variability on water resource availability and its adverse impacts on agriculture in the region. The results showed a decreasing trend for some yield crops despite the increase in the cultivated area. The results of the groundwater levels and inflow dams showed a significant upward evolution. The analysis of the obtained SPI values and temperatures has revealed a notable and consistent upward trendencies. This upward trajectory indicates that both the SPI values, which reflect precipitation patterns and the temperatures, have been on the rise over the examined period. These results prompt reflection on the effects of climate variability on water resources in the region and economic activities, particularly agriculture.

关键词： Béni Mellal Khénifra Region Groundwater Mann Kendal Method Regression Groundwater Levels Standardized Precipitation Index

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Productivity Improvement Model without Increasing Operation’s Risk and Fatigue

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Engineering（科研） 2011年第11期3卷 1124-1131页

作者： Adel Al-Shayea khalid Al-Saleh khalid Al-Yami Abdulaziz el-Tamimi 不详

Productivity improvement of an operation without increasing operation risk and operation fatigue that increase the needed relaxation allowance is an important subject in process design. This research subject stimulates researchers to focus on improving the productivity of the whole production process by changing the technique of performing significant operations in the process. However, two important issues that affect the implementation of any new technique were not considered in the pervious research works. These are the risk magnitude of the new technique on the workplace environment and the fatigue level that affect human's health. In this paper, a model was developed that maximize the productivity of the production process by selecting the best technique to perform significant process operations among proper candidate techniques that improve these operations productivity while minimizing these operations risk and fatigue.

关键词： Risks Productivity Improvement Optimization Relaxation Allowance Fatigue Standard Productivity Costs

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Valorization of natural diatomite mineral:Application to removal of anionic dye from aqueous solution in a batch and fixed-bed reactor

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Journal of Central South University 2022年第6期29卷 2084-2098页

作者： HADRI Mohamed el MRABET Imane CHAOUKI Zineb DRAOUI khalid HAMDAOUI Mustapha DOUHRI Hikmat ZAITAN Hicham Processes MaterialsEnvironment Laboratory(LPME)Faculty of Sciences and TechnologySidi Mohamed Ben Abdellah UniversityB.P.2202FezMorocco Laboratory MSI Faculty of SciencesAbdel Malek Essaadi UniversityB.P.2121M’hannech II93002TetouanMorocco

In this work,the efficiency of an adsorption process,in which Moroccan diatomite(ND)is used as a low-cost adsorbent to remove Congo red(CR)dye from contaminated waters in batch and column system,was *** influence of experimental conditions(pH,adsorbent dose and temperature)on the adsorption of CR onto the ND adsorbent was studied.A study of the adsorption kinetics for CR revealed that a pseudo-second-order model provided the best fit to the experimental kinetic data,and the equilibrium data were well described by the Langmuir isotherm model with an adsorption capacity of 6.07 mg/g using 15 g/L of ND,pH=6,contact time 3 h and 25℃.On the other hand,the ND regeneration tests were investigated and showed that the desorption reaches at least 50%when using ethanol as *** addition,the adsorption process in a continuous mode was *** curves were properly represented by the Yoon—Nelson ***,the adsorption capacity of 5.71 mg/g was reached using 0.114 g of adsorbent,CR concentration of 6 mg/L and a flow of 1 mL/min under 25℃.

关键词： Congo red adsorption diatomite fixed-bed column kinetic model

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GIS as an Efficient Tool to Manage Educational Services and Infrastructure in Kuwait

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Journal of Geographic Information System 2013年第1期5卷 75-86页

作者： khalid Al-Rasheed Hamdy I. el-Gamily Civil Engineering Department College of Engineering Kuwait University Kuwait City Kuwait Geoinformatics Center Kuwait Institute for Scientific Research (KISR) Kuwait City Kuwait

The State of Kuwait Ministry of Education (MoE) has clearly defined land use standards for the location of public schools, and an inventory of reserved lands for future facilities. Unless, there is a geographical efficient tool to manage and plan the education system in a rapidly developing country such as Kuwait there will be huge deficit in such services. Geographic Information Systems (GIS) was used to fill in this gap and effectively evaluate and analyze their facilities and unoccupied lands to ensure they continue to meet the population and future needs of Kuwaiti students. This paper utilized the GIS to inventory, map, and analyze MoE facilities and unoccupied land reservations with a goal of improved planning and decision making. Unfortunately, the initial spatial analysis of the data showed huge percent of districts that have no schools failing to meet the minimum standard of the MoE including kindergartens, primary schools, intermediate schools for girls, intermediate schools for boys, secondary schools for girls and secondary schools for boys at 72%, 71%, 48%, 43%, 54%, and 55% respectively. Such critical results will enable the decision makers to prioritize the immediate action of relocation the schools or widen the services and accessibility. Moreover, the analysis of the data showed a critical and immediate need to reserve land for five districts where they are heavily populated and lacked reserved land. However, based on long term land use plans, there is an urgent need to relocate some land and reserve others to meet the future urbanization plans and population growth.

关键词： Kuwait Education GIS Infrastructure Land Use Planning Land Reservation

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A Rare Cause of Stomach Gangrene: Necrotizing Gastritis

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Open Journal of Gastroenterology 2015年第2期5卷 7-10页

作者： Hicham el Bouhaddouti Tarik Souiki khalid Mazine Abdelmalek Ousadden khalid Mazaz khalid Ait Taleb Department of Visceral Surgery University Hospital Hassan II-Fes Faculty of Medicine and Pharmacy of Fez Sidi Mohamed Ben Abdellah University Fez Morocco

Necrosis of the stomach is rare. It occurs when there is vascular anomalies, gastric volvulus or her-niation and in infectious gastritis. We report a case in which infectious gastritis leads to a necrotiz-ing gastriti... 详细信息

关键词： Gastric Necrosis Necrotizing Gastritis Surgery

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Advances in reduction of NO_x and N_2O emission formation in an oxy-fired fluidized bed boiler

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Chinese Journal of Chemical Engineering 2019年第2期27卷 426-443页

作者： khalid el Sheikh Mohammad Jakir Hossain Khan Mahar Diana Hamid Siddhartha Shrestha Brahim Si Ali G.A.Ryabov Lya A.Dolgushin Mohd Azlan Hussain Tatiana V.Bukharkina elena A.Gorelova Dmitry Mendeleev University of Chemical Technology of Russia Department of Chemical Engineering Faculty of Engineering University of Malaya Laboratory for Simulation and Modelling of Particulate Systems Department of Chemical Engineering Monash University All-Russian Thermal Engineering Institute VTI

Fossil fuel combustion is one of the major means to meet the mounting global energy demand. However, the increasing NO_x and N_2 O emissions arising from fossil fuel combustion process have hazardous effects. Thus, mitigating these gases is vital to attain a sustainable environment. Interestingly, oxy-fuel combustion in fluidized bed for carbon capture and minimized NO_x emissions is strongly sustainable compare to the other approaches. It was assessed that NO_x formation and fuel-N conversion have significant limitation under oxy-fluidized bed compared to air mode and the mechanism of NO_x formation is still deficient and requires further development. In addition, this review paper discussed the potential of primary measure as low emission process with others supplementary techniques for feasible NO_x reduction. The influences of combustion mode, operating parameters, and reduction techniques such as flue gas recirculation, oxygen staging, biomass co-firing, catalyst, influence of fluidized bed design and structure, decoupling combustion and their merges are respectively evaluated. Findings show that significant minimization of NO_x emission can be achieved through combination of primary and secondary reduction techniques.

关键词： Oxy-fuel combustion Fluidized bed technology Biomass blend Primary/secondary measures NOx emission

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GENERIC WARPED PRODUCT SUBMANIFOLDS OF LOCALLY CONFORMAL KEAHLER MANIFOLDS

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Acta Mathematica Scientia 2010年第5期30卷 1457-1468页

作者： Nargis Jamal khalid Ali Khan Viqar Azam Khan Department of Mathematics Aligarh Muslim University School of Engineering and Logistics Faculty of TechnologyCharles Darwin University Department of Mathematics College of ScienceP.O.Box 80203King Abdul Aziz University

Warped product manifolds are known to have applications in physics. For instance, they provide an excellent setting to model space-time near a black hole or a massive star （cf. [9]）. The studies on warped product manifolds with extrinsic geometric point of view were intensified after the B.Y. Chen＇s work on CR-warped product submanifolds of Kaehler manifolds （cf. [6], [7]）. Later on, similar studies were carried out in the setting of 1.c.K. manifolds and nearly Kaehler manifolds （el. [3], [11]）. In the present article, we investigate a larger class of warped product submanifolds of 1.c.K. manifolds, ensure their existence by constructing an example of such manifolds and obtain some important properties of these submanifolds. With regard to the CR-warped product submanifold, a special case of generic warped product submanifolds, we obtain a characterization under which a CR-submanifold is reducesd to a CR-warped product submanifold.

关键词： warped product submanifold locally conformal Kaehler manifold generic submanifold

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Termites Improve the Horizontal Movement of Carbonized Particles:A Step towards Sustainable Utilization of Biochar

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Phyton-International Journal of Experimental Botany 2022年第10期91卷 2235-2248页

作者： Mazhar Ali Nasir Masood Hafiz Muhammad Rashad Javeed Ibrahim Al-Ashkar khalid F.Almutairi Liyun Liu Muhammad Aqeel Sarwar Karthika Rajendran Ayman el Sabagh Department of Environmental Sciences COMSATS University IslamabadVehari CampusVehari61100Pakistan Department of Plant Production College of Food and AgricultureKing Saud UniversityRiyadh11451Saudi Arabia Graduate School of Integrated Sciences for Life Hiroshima UniversityHiroshima739-8528Japan Crop Sciences Institute National Agricultural Research CentreIslamabad44000Pakistan VIT School of Agricultural Innovations and Advanced Learning(VAIAL) Vellore Institute of Technology(VIT)Vellore632014India Department of Agronomy Faculty of AgricultureKafrelsheikh UniversityKafr El-Shaikh33516Egypt

Soil amendments containing carbonized materials increase the soil carbon reservoir,influence plant productivity,and,ultimately,help to clean the *** is data on the effect of such additions on soil physicochemical properties or plant growth,but few studies have focused on how these carbonized materials are distributed by termite species in the soil *** is the first comprehensive study of the transportation of biochar(BC)by termite species under tropical environmental conditions in *** present study was carried out to test the hypothesis that if termite species I)were involved in the distribution of biochar particles II)if yes,then how far these particles were transported during the study period(10 days)and III)check their preference between the enriched BC(EBC)and non-enriched *** was enriched with the cattle slurry after its pyrolysis in the *** results showed that EBC particles were significantly more widely distributed than non-enriched BC particles,but both types of BC were transported more than 4 cm(ring 4)within 10 days(at the end of the experiment).The current study also revealed that EBC was easily attached to the setae,cuticle,and legs of termites,implying that it could potentially be transported over a greater ***,transportation of EBC over larger distances indicated a potential preference of termite species between the EBC and BC *** the study,however,the preference among the termite species was also *** the prevailing study conditions,the Coptotermes heimi and Heteroterme indicola species transported the EBC further than Microtermes obesi and Odontotermes *** findings revealed that transportation preferences were observed among the four termite *** conclusion,the current study found that termites were involved in the distribution of BC particles,with a preference for EBC and that these have the potential to transport BC particles more than 4 cm within 10 da

关键词： Enriched biochar termite species distribution micro-particles feeding stations soil productivity

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Using Multiple Linear Regression and Artificial Neural Network Techniques for Predicting CCR5 Binding Affinity of Substituted 1-(3, 3-Diphenylpropyl)-Piperidinyl Amides and Ureas

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Open Journal of Medicinal Chemistry 2013年第1期3卷 7-15页

作者： Rokaya Mouhibi Mohamed Zahouily khalid el Akri Naima Hanafi Laboratoire de Catalyse Chimiométrie et EnvironnementFacultédes Sciences et Techniques Mohammedia(URAC24)UniversitéHassan Ⅱ Mohammedia-CasablancaCasablancaMaroc Laboratoire de Chimie Organique Catalyse et EnvironnementFacultédes Sciences Ben M’sikUniversitéHassan Ⅱ Mohammedia-CasablancaCasablancaMaroc

Quantitative structure–activity relationship (QSAR) models were developed to predict for CCR5 binding affinity of substituted 1-(3, 3-diphenylpropyl)-piperidinyl amides and ureas using multiple linear regression (MLR) and artificial neural network (ANN) techniques. A model with four descriptors, including Hydrogen-bonding donors HBD(R7), the partition coefficient between n-octanol and water logP and logP(R1) and Molecular weight MW(R7), showed good statistics both in the regression and artificial neural network with a configuration of (4-3-1) by using Bayesian and Leven-berg-Marquardt Methods. Comparison of the descriptor’s contribution obtained in MLR and ANN analysis shows that the contribution of some of the descriptors to activity may be non-linear.

关键词： Artificial Neural Network Descriptors CCR5 Multiple Linear Regression Structure-Activity Relationship

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Gastro Intestinal Stromal Tumor: State of the Art through Our Experience of 64 Cases and a Literature Review

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Journal of Cancer Therapy 2020年第5期11卷 265-275页

作者： Saad Slaiki Hicham el Bouhaddouti Abdelmalek Ousadden khalid Ait Taleb el Bachir Benjelloun Visceral Surgery Department CHU Hassan II Fes Morocco

Gastrointestinal stromal tumors are rare. They are a subject of controversy. We have reported 64 cases of gastrointestinal stromal tumor diagnosed in the surgery department of CHU Hassan II of FES between January 2014 and December 2018. The study involved 64 patients (34 men and 30 women) with an average age of 56. The circumstances of findings were dominated by abdominal pain (48 cases), vomiting 16 case followed by transit disorder with 9 cases. The tumor locations were mainly the stomach (n = 31), the small intestine (n = 28), the duodenum (n = 3), and the colon (n = 2). Ultrasound, endoscopy and CT were the main additional tests to detect tumor syndrome. 55 patients were treated by complete surgical excision. Tumor size ranged from 4cm to 18cm. Histologically, the spindle cell type was predominant in 88.91% of cases;epithelioid type was present in 7.81% of cases, while the mixed type was found in 3.6%. The analysis of the expression of CD 117 marker was present in 95.31%, while immunostaining with this marker returned negative in 3 cases;i.e. 5% whose c-kit was positive. Imatinib was indicated in 44 patients (63.60%), with 9 indications for metastatic tumor. As a neoadjuvant, imatinib was indicated in 5 patients, with remission in 28 patients (50.9%), stabilization in 4 patients (7.2%), 2 cases of tumor recurrence and 7 cases of death.

关键词： Stromal Tumor Imatinib Surgery GIST

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