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Diatomaceous earths as alternatives to chemical insecticides in stored grain

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Insect Science 2006年第6期13卷 421-429页

作者： amin.NIKPAY Department of Entomology College of Agriculture University of Urmia Urmia Iran

Diatomaceous earth （DE） is a natural inert dust used to control insect pests in stored grain as an alternative to synthetic residual insecticides. Various DE formulations are now registered as a grain protectant or for structural treatment in many different countries throughout the world. The mode of action of DE is through the absorption of cuticular waxes in the insect cuticle, and insect death occurs from desiccation. The main advantages of using DE are its low mammalian toxicity and its stability. The main limitations to widespread commercial use of DE are reduction of the bulk density and flowability of grain, irritant hazards during application and reduction in efficacy at high moisture contents. This paper is an updated review of published results of researches related to the use of DEs and discusses their potential use in large-scale, commercial storage and in small scale applications.

关键词： desiccation diatomaceous earths stored grain synthetic residual insecticides

The Communist Manifesto,170 Years Later

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学术界 2018年第11期 214-227页

作者： Samir amin French Marxian Economist Director of the Third World Forum

No text written in the mid-nineteenth century has held the road until today as well as the Communist Manifesto of *** is no any other text written in the middle of the 21th century which retained validity until this day as well as the Manifesto of the Communist *** today entire paragraphs of the text correspond to the contemporary reality even better than in *** from the premises which were hardly visible in the era,Marx and Engels drew the conclusions which the deployment of 170 years of history fully *** this article I will give further enlightening examples.

关键词： text written century premises

Analysis and Modeling of Mobile Phone Activity Data Using Interactive Cyber-Physical Social System

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Computers, Materials & Continua 2024年第9期80卷 3507-3521页

作者： Farhan amin.Gyu Sang Choi School of Computer Science and Engineering Yeungnam UniversityGyeongsan38541Republic of Korea

Mobile networks possess significant information and thus are considered a gold mine for the researcher’s *** call detail records(CDR)of a mobile network are used to identify the network’s efficacy and the mobile user’s *** is evident from the recent literature that cyber-physical systems(CPS)were used in the analytics and modeling of telecom *** addition,CPS is used to provide valuable services in smart *** general,a typical telecom company hasmillions of subscribers and thus generatesmassive amounts of *** this aspect,data storage,analysis,and processing are the key *** solve these issues,herein we propose a multilevel cyber-physical social system(CPSS)for the analysis and modeling of large internet *** proposed multilevel system has three levels and each level has a specific ***,raw Call Detail Data(CDR)was collected at the first ***,the data preprocessing,cleaning,and error removal operations were *** the second level,data processing,cleaning,reduction,integration,processing,and storage were ***,suggested internet activity record measures were *** proposed system initially constructs a graph and then performs network *** proposed CPSS system accurately identifies different areas of internet peak usage in a city(Milan city).Our research is helpful for the network operators to plan effective network configuration,management,and optimization of resources.

关键词： Cyber-physical social systems big data cyber-physical systems pervasive computing smart city big data management techniques

Influence of yeast on rumen fermentation,growth performance and quality of products in ruminants:A review

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Animal Nutrition 2021年第1期7卷 31-41页

作者： Abdulmumini B.amin.Shengyong Mao Centre for Ruminant Nutrition and Feed Engineering Research College of Animal Science and TechnologyNanjing Agricultural UniversityNanjing210095China Department of Animal Science Federal University DutseP.M.B 7156DutseJigawa StateNigeria Jilin Inter-Regional Cooperation Centre for the Scientific and Technological Innovation of Ruminant Precision Nutrition and Smart and Ecological Farming 132109JilinChina

This review aims to give an overview of the efficacy of yeast supplementation on growth performance,rumen pH,rumen microbiota,and their relationship to meat and milk quality in *** practice of feeding high grain diets to ruminants in an effort to increase growth rate and weight gain usually results in excess deposition of saturated fatty acids in animal products and increased incidence of rumen *** supplementation of yeast at the right dose and viability level could counteract the acidotic effects of these high grain diets in the rumen and positively modify the fatty acid composition of animal *** exerts its actions by competing with lactate-producing(Streptococcus bovis and Lacto-bacillus)bacteria for available sugar and encouraging the growth of lactate-utilising bacteria(Mega-sphaera elsdenii).*** is known to convert lactate into butyrate and propionate leading to a decrease in the accumulation of lactate thereby resulting in higher rumen ***,this creates a conducive environment for the proliferation of vaccenic acid-producing bacteria(Butyrivibrio fibrisolvens)and ciliate protozoa,both of which have been reported to increase the ruminal concentration of trans-11 and cis-9,trans-11-conjugated linoleic acid(CLA)at a pH range between 5.6 and *** addition of yeast into the diet of ruminants has also been reported to positively modify rumen biohydrogenation pathway to synthesise more of the beneficial biohydrogenation intermediates(trans-11 and cis-9,trans-11).This implies that more dietary sources of linoleic acid,linolenic acid,and oleic acid along with beneficial biohydrogenation intermediates(cis-9,trans-11-CLA,and trans-11)would escape complete bio-hydrogenation in the rumen to be absorbed into milk and ***,further studies are required to substantiate our ***,techniques like transcriptomics should be employed to identify the mRNA transcript expression levels of genes like stearoyl-CoA des

关键词： Yeast Rumen fermentation Conjugated linoleic acid Biohydrogenation Milk yield Meat quality

Effect of deep cryogenic treatment on the formation of nano-sized carbides and the wear behavior of D2 tool steel

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International Journal of Minerals,Metallurgy and Materials 2012年第9期19卷 795-799页

作者： Kamran amin. amin.Akhbarizadeh Sirus Javadpour Department of Materials Science and Engineering Majlesi Branch Islamic Azad University Isfahan 86315/111 Iran Department of Materials Science and Engineering School of Engineering Shiraz University Zand Ave. Shiraz *** Fars Iran

The effect of deep cryogenic treatment on the microstructure, hardness, and wear behavior of D2 tool steel was studied by scanning electron microscopy （SEM）, transmission electron microscopy （TEM）, X-ray diffraction （XRD）, hardness test, pin-on-disk wear test, and the reciprocating pin-on-fiat wear test. The results show that deep cryogenic treatment eliminates retained austenite, makes a better carbide distribution, and increases the carbide content. Furthermore, some new nano-sized carbides form during the deep cryogenic treatment, thereby increasing the hardness and improving the wear behavior of the samples.

关键词： cryogenic treatment tool steel nano-sized carbides wear resistance hardness austenite

Numerical study of flow and thermal characteristics of pulsed impinging jet on a dimpled surface

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Theoretical & Applied Mechanics Letters 2024年第2期14卷 106-117页

作者： amin.Bagheri Kazem Esmailpour Morteza Heydari Renewable Energy Research Center Damavand BranchIslamic Azad UniversityDamavandIran

This research comprehensively investigates the flow and thermal characteristics of a pulsating impinging jet over a dimpled *** analyzes the impact of key parameters(e.g.,inlet velocity pulsation functions,pulsation frequency,amplitude,dimple pitch,dimple depth,Reynolds number)on flow patterns and heat *** computational fluid dynamics and the Re-normalization group turbulence model are employed to accurately simulate complex turbulent flow *** and average heat transfer coefficients are calculated and compared to steady impingement cases,revealing the potential benefits of pulsation for heat transfer *** study also examin.s how pulsation-induced flow modulation and thermal mixing affect heat transfer *** indicate that combining fluctuating flow with a dimpled surface can improve heat transfer *** summary,increasing pulsation amplitude consistently enhances heat transfer,while the effect of frequency varies between impinging and wall jet zones.

关键词： Pulsating impinging jet Dimpled surface Heat transfer enhancement Pulsation frequency and amplitude Coherent structures

On the potential of alyssum as an herbal fiber to improve the filtration and rheological characteristics of water-based drilling muds

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Petroleum 2022年第4期8卷 509-515页

作者： Mohammad amin.Ebrahimi Ali Sanati Department of Petroleum Engineering Amirkabir University of TechnologyTehranIran Petroleum and Petrochemical Engineering School Hakim Sabzevari UniversitySabzevarIran

Drilling muds play an important role in drilling and production operations so that the degree of success in such operations is determined by the proper design of these *** optimize drilling operations and avoid excessive expenditure,it is essential to prepare a drilling mud that is both cheap and *** additives are typically used in drilling systems to improve these fluids'capabilities in terms of hole cleaning capacity,filtration control,viscosity,yield point,heat transfer,***,environmental concerns,cost of production,and availability are always considered challenging *** study introduces an eco-friendly herbal fiber in powder and regular forms as a potential alternative to other chemical *** do so,alyssum homolocarpum seed mucilage was added with different concentrations to the water-based drilling muds,and its rheological behavior,filtration control,and the induced formation damage were examin.d and the optimum concentration was *** results of this study revealed the advantages of the drilling muds formulated with alyssum in terms of filtration control,rheology,formation damage,and greenness.

关键词： Drilling fluid alyssum Herbal fiber Rheology Filtration contro

Automated Service Search Model for the Social Internet of Things

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Computers, Materials & Continua 2022年第9期72卷 5871-5888页

作者： Farhan amin.Seong Oun Hwang Department of Computer Engineering Gachon UniversitySeongnam13120Korea

The social internet of things(SIoT)is one of the emerging paradigms that was proposed to solve the problems of network service discovery,navigability,and service *** SIoT aims to socialize the IoT devices and shape the interconnection between them into social interaction just like human *** IoT,an object can offer multiple services and different objects can offer the same services with different parameters and interest *** proliferation of offered services led to difficulties during service customization and service *** problem is known as service *** selection of suitable service that fits the requirements of applications and objects is a challenging *** address these issues,we propose an efficient automated query-based service search model based on the local network navigability concept for the *** the proposed model,objects can use information from their friends or friends of their friends while searching for the desired services,rather than exploring a global *** employ a centrality metric that computes the degree of importance for each object in the social IoT that helps in selecting neighboring objects with high centrality *** distributed nature of our navigation model results in high scalability and short navigation *** verified the efficacy of our model on a real-world SIoT-related *** experimental results confirm the validity of our model in terms of scalability,navigability,and the desired objects that provide services are determined quickly via the shortest path,which in return improves the service search process in the SIoT.

关键词： Social internet of things service discovery local navigability object discovery query generation model

Estimation of maximum scour depth around bridge piers under ice-covered conditions using data-driven methods

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International Journal of Sediment Research 2023年第2期38卷 191-202页

作者： Hosein Nezaratian amin.Hassanjabbar Peng Wu Environmental Systems Engineering Faculty of Engineering and Applied Science University of Regina

The scouring around bridge foundations is a significant concern in civil engineering. Several research has been conducted experimentally and numerically to study the maximum scour depth around the foundations of a bridge in open channel conditions. In cold regions, where ice forms on lakes, reservoirs, and rivers, the interaction between ice and hydraulic structures is further complicated. The flow distribution varies significantly leading to deeper and larger scouring around bridge foundations. The present study took advantage of the data-driven methods to investigate the impacts of ice conditions to maximum scour depth. In total, 96 datasets were extracted from previous studies. The M5 decision tree, Genetic Expression Programming(GEP), and Particle Swarm Optimization(PSO) were used in data analysis. The models were developed using the train-and-test approach to avoid over-training. The mentioned developed models were further compared with a previous empirical equation associated with the prediction of maximum scour depth around piers under ice conditions. Finally, a sensitivity analysis method was applied to evaluate the performance of the data-driven models. It was found that the approaching velocity and pier diameter play the most crucial role in determination of the maximum scour depth. The result is generally in agreement with those of previous experimental studies.

关键词： Ice cover Bridge foundations Data-driven method Maximum scour depth Sensitivity analysis