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Overview of emerging technologies in sprinkler irrigation to optimize crop production

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International Journal of Agricultural and Biological Engineering 2019年第3期12卷 1-9页

作者： Hong Li zakaria Issaka Yue Jiang Pan Tang Chao Chen Research Centre of Fluid Machinery Engineering and Technology Jiangsu UniversityZhenjiang 212013China Department of Agricultural Engineering Tamale Technical UniversityNorthern RegionTamaleGhana

Water saving is an essential part of sprinkler irrigation owing to the impact of climate change and rising energy *** review highlights the technologies that are emerging in sprinkler irrigation to optimize crop *** there have been notable advances in irrigation,the continued progress has occurred by the combination of current status with the postulation of new ideas such as conversion of high-pressure sprinkler to low-pressure ones,incorporation of smart controllers in sprinkler irrigation *** enhance the adoption of these technologies,research on the dispersion device is needed to improve the performance of impact sprinklers to efficiently operate at low-pressure *** is also important to study how water savings estimates based on water use,irrigated area,longevity of saving,and level of wasteful irrigation prior to the retrofit obtained from field trials can be extrapolated to other areas with different *** in the development of optimized method for irrigation scheduling is *** review emphasizes that the status of technologies should be considered a continuum,building on earlier knowledge and progress,and hopefully leading toward optimized crop production in sprinkler irrigated areas.

关键词： sprinkler irrigation technologies smart controllers crop water demand crop production

Pharmacological activity,phytochemical analysis and toxicity of methanol extract of Etlingera elatior(torch ginger) flowers

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Asian Pacific Journal of Tropical Medicine 2010年第10期3卷 769-774页

作者： Subramanion Jo Thy Lachumy Sreenivasan Sasidharan Velio Sumathy zakaria Zuraini School of Distance Education Universiti Sains MalaysiaMinden 11800Pulau PinangMalaysia Institute for Research in Molecular Medicine(INFORMM) Universiti Sains MalaysiaMinden 11800Pulau PinangMalaysia

Objective:To elucidate its pharmacological activities and medicinal potential of extract of Etlingera elatior（***）.Methods:Phytochemical screening of the flower extract was done to determine the phytochemical in the *** pharmacological study included the determination of antimicrobial activity and minimum inhibitory concentration（MIC） of metabolic flower *** antimicrobial activity of the extract was tested against medically important bacterial,yeast and fungal *** from that,the methanolic extract of *** flower was further tested in vivo toxicity using the brine shrimp lethality ***,the flower extract was qualitatively screened for their free radical scavenging activity by 2,2-diphenyl-1- picrylhydrazyl radical（DPPH） ***:The extract was effective on tested microorganisms and MIC values were in the range of 1.563-50.000 mg/*** brine shrimp lethality test exhibited no significant toxicity(LC50= 2.52 mg/mL) against Artemia *** *** flower extract with high LC50 value signified that this plant is not toxic to *** the phytochemical screening of the flower extract revealed the presence of the following compounds: flavonoids,terpenoids,saponin,tannins and carbohydrates whereas,alkaloids,anthraquinone and reducing sugars were *** concentration of the flower extract required for 50% inhibition of DPPH radical scavenging effect(IC50) were 9.14 mg/mL and 8.08 mg/mL for butylated hydroxytoluene 8.08 mg/***:These findings indicate that the extract of *** flower possesses pharmacological properties and potential to develop natural products based pharmaceuticals products.

关键词： Etlingera elatior Pharmacological activity Phytochemical analysis Artemia salina

海岸线识别偏差:马来西亚登嘉楼州吉隆坡地区中等潮汐海滩的理论值和测量值

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Journal of Marine Science and Application 2022年第3期21卷 184-192页

作者： Faerah Nasir Adina Roslee Junainah zakaria Effi Helmy Ariffin Nor Aieni Mokhtar Faculty of Science and Marine Environment Universiti Malaysia Terengganu21030Kuala NerusTerengganuMalaysia Institute of Oceanography and Environment Universiti Malaysia Terengganu21030Kuala NerusTerengganuMalaysia

Shoreline change analysis frequently begins with feature identification through visual interpretation(proxy-based shoreline)or the intersection of a specific tidal zone(datum-based shoreline).Using proxy-based shoreline information,this study quantifies the distance between proxy-based and datum-based shoreline data,which is defined as the proxydatum *** study was conducted at meso-tidal beaches in Kuala Nerus,Terengganu,Malaysia,with morphodynamic responses to northeast and southwest *** high-water line(HWL)shoreline(proxy-based)was determined using ortho-rectified aerial images captured by an unmanned aerial vehicle(UAV).By contrast,the mean high-water(MHW)shoreline(datum-based)was determined using measured beach profiles adjusted with the Peninsular Malaysia Geodetic Vertical Datum(DTGSM).The theoretical proxy-datum bias was approximated using the best estimate(median)for the beach slope,wave height,and wave period from the estimated total water level(TWL)*** on the study,the recorded horizontal proxy-datum bias for the research area was up to 32 *** study also discovered that the theoretical assumption of the proxy-datum bias based on the TWL model yields values comparable to those of the measurements,with a narrower distinction in bias for steeper beach slopes than the obtained *** determined proxydatum bias value can benefit future shoreline change studies as it could be incorporated to either proxy-based shorelines by shifting the shoreline seaward or to datum-based shorelines by shifting the shoreline landward in order of the bias *** seasonal monsoon’s effect on beach profiles should be considered when calculating bias values and conducting potential shoreline change rate studies.

关键词： Shoreline evolution Datum Beach profile Unmanned aerial vehicle Monsoon

Foraging ecology and occurrence of 7 sympatric babbler species （Timaliidae） in the lowland rainforest of Borneo and peninsular Malaysia

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Current Zoology 2016年第4期62卷 345-355页

作者： Alison R. STYRING Roslina RAGAI Mohamed zakaria Frederick H. SHELDON The Evergreen State College Olympia Washington 98505 USA Grand Perfect Sdn. Bhd. ParkCity Commerce Square 97000 Bintulu Sarawak Malaysia Department of Forest Management Faculty of Forestry Universiti Putra Malaysia Serdang Selangor Malaysia Museum of Natural Science and Department of Biological Sciences Louisiana State University Baton Rouge Louisiana USA 70803

Understanding foraging strategies of birds is essential to understanding mechanisms of their community assembly. To provide such information on a key Southeast Asian rainforest family, the babblers (Timaliidae), we evaluated foraging behavior and abundance in 7 morphologically and behaviorally similar sympatric species (, , , , , and ) in 5 habitats defined by structural complexity: (1) continuous native rainforest, (2) logged native rainforest fragments, (3) mature industrial tree plantation, (4) young industrial plantation, and (5) oil palm plantation. Enough data were obtained to compare abundance in all 7 species and foraging behavior in 5. All species were common in forest fragments and mature industrial tree plantations and less so in continuous rainforest and young industrial plantations; only occurred in oil palm. In terms of foraging, was the greatest generalist; foraged mainly on live leaves in the forest midstory; and , , and foraged mainly on dead leaves suspended in understory vegetation at significantly different heights. The dead-leaf substrate depends on a rich supply of falling leaves and extensive understory structure, conditions most common in native forest and old industrial plantations, and less so in mature forest, young plantations, and oil palm. Because of the importance of foraging data to understanding and managing biodiversity, we encourage the development of foraging fields in eBird (***), so that birdwatchers may help collect these relatively rare data.

关键词： Brunei Sabah Sarawak dead leaves logged forest plantation

Biochar:An Emerging Panacea for Remediation of Soil Contaminants from Mining,Industry and Sewage Wastes

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Pedosphere 2015年第5期25卷 654-665页

作者： Hossain M.ANAWAR Farjana AKTER zakaria M.SOLAIMAN Vladimir STREZOV School of Earth and Environment (M087) and UWA Institute of Agriculture The University of Western Australia Sher-e-Bangla Agricultural University Department of Environmental Sciences Faculty of Science and EngineeringMacquarie University

Mine tailings, waste rock piles, acid mine drainage, industrial wastewater, and sewage sludge have contaminated a vast area of cultivable and fallow lands, with a consequence of deterioration of soil and water quality and watercourses due to the erosion of contaminated soils for absence of vegetative cover. High concentrations of toxic elements, organic contaminants, acidic soils, and harsh climatic conditions have made it difficult to re-establish vegetation and produce crops there. Recently, a significant body of work has focussed on the suitability and potentiality of biochar as a soil remediation tool that increases seed emergence, soil and crop productivity, above ground biomass, and vegetation cover on mine tailings, waste rock piles, and industrial and sewage wastecontaminated soils by increasing soil nutrients and water-holding capacity, amelioration of soil acidity, and stimulation of microbial diversity and functions. This review addresses: i) the functional properties of biochar, and microbial cycling of nutrients in soil; ii)bioremediation, especially phytoremediation of mine tailings, industrial waste, sewage sludge, and contaminated soil using biochar; iii)impact of biochar on reduction of acid production, acid mine drainage treatment, and geochemical dynamics in mine tailings; and iv)treatment of metal and organic contaminants in soils using biochar, and restoration of degraded land.

关键词：土壤污染物工业废水污水污泥生物炭酸性矿山废水地球化学动力学有机污染物采矿

Effect of Patient-Specific Aorta Wall Properties on Hemodynamic Parameters

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Fluid Dynamics & Materials Processing 2021年第1期17卷 171-179页

作者： Mohamad Shukri zakaria Haslina Abdullah Azmi Nordin Syazwati Ahmad Zaki Fakulti Kejuruteraan Mekanikal Universiti Teknikal Malaysia MelakaHang Tuah Jaya76100Malaysia Faculty of Mechanical&Manufacturing Engineering Universiti Tun Hussein OnnParit Raja86400Malaysia

This study deals with the interaction of blood flow with the wall aorta,i.e.,the boundary of the main artery that transports blood in the human *** problem is addressed in the framework of computational fluid dynamics complemented with(FSI),i.e.,a fluid-structure interaction *** fundamental types of wall are considered,namely a flexible and a rigid *** resulting hemodynamic flows are carefully compared in order to determine which boundary condition is more effective in reproducing *** attention is paid to wall shear stress(WSS),a factor known for its ability to produce atherosclerosis and *** flow conditions are *** result show that the flexible wall can produce higher WSS and pressure drop compared to the rigid aorta case.

关键词： Aorta CFD wall shear stress FS

Risk of Autism Spectrum Disorder According to the Dose and Trimester of Exposure to Antiseizure Medications: A Systematic Review and Meta-Analysis

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Open Journal of Psychiatry 2023年第2期13卷 106-121页

作者： zakaria Ahmed Mohamed Erick Thokerunga Ali Omar Jimale Zhichen Liu Jingyi Fan Department of Pediatrics Zhongnan Hospital of Wuhan University Wuhan China Department of Clinical Laboratory Medicine Center for Gene Diagnosis Zhongnan Hospital of Wuhan University Wuhan China

Background: The association between prenatal exposure to antiseizure medications (ASM) and autism spectrum disorder has been documented. This study sought to examine and synthesize evidence from studies that have evaluated these associations, with particular focus on the trimester of pregnancy and dosage of exposure. Methodology: PubMed, Embase, and PsycINFO databases were searched following strict inclusion/exclusion criteria. 10 studies were recruited involving children born to mothers with epilepsy who took ASM during pregnancy as cases, and those with epilepsy who did not take any ASM in pregnancy. Results: The relative risk of developing ASD among children exposed to valproic acid (RR, 3.90 [95% CI: 2.36 - 6.44], p < 0.006), was twice higher than that of carbamazepine (RR, 1.65 [95% CI: 0.62 - 4.37], p < 0.0001), or lamotrigine (RR, 1.60 [95% CI: 0.77 - 3.32], p = 0.006). The trimester of exposure and dosage of ASM administered were not significant. Conclusion: In summary, prenatal exposure to ASM increased the risk of developing ASD in children. The relative risk was twice as high in those exposed to valproic acid compared to those exposed to carbamazepine or lamotrigine. Trimester of pregnancy and dosage of ASM used by the mothers were not significant.

关键词： Autism Anti-Seizure Anticonvulsants Anti-Epileptic Fetal Prenatal

Performance of Two Food Substrates in the Mass Rearing of Bactrocera dorsalis Hendel (Diptera: Tephritidae)

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Advances in Entomology 2023年第3期11卷 188-203页

作者： Karim Nébié Ilboudo zakaria Pagabeleguem Soumaila Zaoua Hamoumapi Delphine Dabiré Rémy Centre National de Spécialisation en Fruits et Légumes Institut de l’Environnement et de Recherches Agricoles Bobo-Dioulasso Burkina Faso Département de Biologie Animale et Physiologie Animale Université Joseph KI-ZERBO Ouagadougou Burkina Faso Institut des Sciences de l’Environnement et du Développement Durable Université de Dédougou Dédougou Burkina Faso

The fruit fly Bactrocera dorsalis Hendel is a major constraint to mango production in Burkina Faso. The objective of this study was to evaluate the performance of two types of food substrates in optimizing the mass rearing of B. dorsalis larvae. For this purpose, 200 eggs of B. dorsalis were divided into four batches of 50 eggs and incubated in Petri dishes containing the different food substrates (Diet 1 and Diet 2). This method was used to evaluate the rate and duration of egg hatching, as well as the development time of the different larval stages. In addition, 1200 pupae divided into four batches of 300 pupae, contained in PVC tubes, were placed inside the rearing cages to monitor the emergence of B. dorsalis. Ten pairs of B. dorsalis were placed in rearing cages and fed with Enzymatic Yeast Hydrolysate and sugar to evaluate the fecundity of female flies and the survival of both sexes. The developmental cycle length in Diet 1 and Diet 2 was 23.03 days and 23.24 days, respectively. Fecundity duration ranged from 57.75 ± 2.29 to 109.81 ± 3.81 days for females from Diet 1 and Diet 2, respectively. The pupal hatching rate varied significantly (P B. dorsalis, but the spawning index was 4 times higher with Diet 1. Most of the components of Diet 1 are available on the local market and are cheaper. Thus, we recommend the use of Diet 1 for B. dorsalis larvae mass rearing.

关键词： Fruit Fly Diachasmimorpha longicaudata Biology Food Substrates Mass Rearing

Multiobjective car relocation problem in one-way carsharingsystem

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Journal of Modern Transportation 2018年第4期26卷 297-314页

作者： Rabih zakaria Mohammad Dib Laurent Moalic Université de Technologie et de Sciences Appliquées Libano-Francaise TripoliLebanon ENGIE 92930 Paris France UHA Mulhouse France

In this paper, we present a multiobjective approach for solving the one-way car relocation *** fix three objectives that include the number of remaining rejected demands, the number of jockeys used for the relocation operations, and the total time used by these jockeys. For this sake, we propose to apply two algorithms namely NSGA-Ⅱ and an adapted memetic algorithm(MA) that we call MARPOCS which stands for memetic algorithm for the one-way carsharing system. The NSGA-Ⅱ is used as a reference to compare the performance of MARPOCS. The comparison of the approximation sets obtained by both algorithms shows that the hybrid algorithm outperforms the classical NSGA-Ⅱ and so solutions generated by the MARPOCS are much better than the solutions generated by NSGA-Ⅱ. This observation is proved by the comparison of different quality indicators’ values that are used to compare the performance of each algorithm. Results show that the MARPOCS is promising to generate very good solutions for the multiobjective car relocation problem in one-way carsharing system. It shows a good performance in exploring the search space and in finding solution with very good fitness values.

关键词： Carsharing Car relocation Integer linear programming(ILP) Multiobjective optimization Memetic algorithm NSGA-Ⅱ