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Termites and Chinese agricultural system: applications and advances in integrated termite management and chemical control

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Insect Science 2021年第1期28卷 2-20页

作者： Farhan Ahmad hatem fouad Shi-You Liang Yin Hu Jian-Chu Mo Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests Institute of Insect SciencesCollege of Agricultural and BiotechnologyZhejiang UniversityHangzhouChina Entomology Section Central Cotton Research InstituteSakrandShaheed BenazirabadSindhPakistan Department of Field Crop Pests Plant Protection Research InstituteAgricultural Research CentreCairoEgypt National Termite Control Center HangzhouChina Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects Institute of Insect SciencesCollege of Agriculture and BiotechnologyZhejiang UniversityYuhangtang Road 866Hangzhou 310058China

Termites are eusocial arthropod decomposers,and improve soil fertility,crop yield,and also are used by humans for their ben efits across the ***,some species of termites are becoming a threat to the farming community as they are directly and indirectly causing major losses to the agricultural *** is estimated that termites cost the global economy more than 40 billion USD annually,and considerable research has been done on their *** this review,we present the available information related to sustainable and integrated termite management practices(ITM).Furthermore,we insist that the better management of this menace can be possible through:(i)improving traditional methods to keep termites away from crops;(ii)improving agricultural practices to maintain plants with more vigor and less susceptible to termite attack;and(iii)integration of available techniques to reduce termite infestation in crops and *** application of an effective combination of traditional practices with recently developed approaches is the best option for agricultural ***,keeping in mind the beneficial nature of this pest,more innovative efforts for its management,particularly using rapidly emerging technology(e.g.,RNA interference),are needed.

关键词： entomopathogens geographical distribution integrated termite management termite

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Investigation of the Fiber Central Dip Refractive Index Profile Using Laser-Lens Fiber Interferometer

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材料科学与工程（中英文B版） 2011年第2期1卷 148-156页

作者： hatem El-Ghandoor hatem El-Hennawi fouad EI-Diasty Mona A. Soliman Physics Department Faculty of Science Ain Shams University Abbasia Cairo 11566 Egypt

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Experimental and Numerical Investigation on High-Pressure Centrifugal Pumps:Ultimate Pressure Formulation,Fatigue Life Assessment and Topological Optimization of Discharge Section

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Computer Modeling in Engineering & Sciences 2023年第12期137卷 2845-2865页

作者： Abdourahamane Salifou Adam hatem Mrad Haykel Marouani Yasser fouad School of Engineering University of Québec in Abitibi-Témiscamingue(UQAT)Rouyn-NorandaQuébecJ9X 5E4Canada National Engineering School of Monastir LGMUniversity of MonastirMonastir5019Tunisia Department of Applied Mechanical Engineering College of Applied EngineeringMuzahimiyah BranchKing Saud UniversityRiyadh11421Saudi Arabia

A high percentage of failure in pump elements originates from *** study focuses on the discharge section behavior,made of ductile iron,under dynamic *** experimental protocol is established to collect the strain under pressurization and depressurization tests at specific *** experimental results are used to formulate the ultimate pressure expression function of the strain and the lateral surface of the discharge section and to validate finite element ***-Safe is then used to assess the fatigue life cycle using different types of fatigue criteria(Coffin-Manson,Morrow,Goodman,and Soderberg).When the pressure is under 3000 PSI,pumps have an unlimited service life of 107 cycles,regardless of the ***,for a pressure of 3555 PSI,only the Morrow criterion denotes a significant decrease in fatigue life cycles,as it considers the average *** topological optimization is then applied to the most critical pump model(with the lowest fatigue life cycle)to increase its fatigue *** the solid isotropic material with a penalization approach,the Abaqus Topology OptimizationModule is *** goal is to reduce the strain energy density while keeping the volume within *** to the findings,a 5%volume reduction causes the strain energy density to decrease from 1.06 to 0.66106 J/m^(3).According to Morrow,the fatigue life cycle at 3,555 PSI is 782,425 longer than the initial 309,742 cycles.

关键词： Centrifugal pump ultimate pressure fatigue life topological optimization

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