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Electrical Tracking,Erosion and Fire Retardancy Performance of Silicone Rubber Insulation Containing Aluminum Trihydrate,Graphene and Glass Fiber Additives

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CSEE Journal of Power and Energy Systems 2023年第5期9卷 1918-1925页

作者： m.Tariq Nazir Arslan Khalid B.Toan Phung Arup K.das Peter Cheetham Ashish Paramane Shakeel Akram Khoi Loon Wong School of Engineering RMIT UniversityMelbourneVIC 3000Australia. the Center for Advanced Power Systems(CAPS) Florida State UniversityFL 32310USA the Flame Security International Pty Limited Australia the School of Electrical Engineering and Telecommunications University of New South Wales SydneyNSW 2052Australia Department of Electrical Engineering National Institute of TechnologySilcharAssam 788010India the College of Electrical Engineering and Control Science Nanjing Tech UniversityNanjingJiangsu 211816China

Silicone rubber composite is a priority electrical insulating material used in high-voltage outdoor insulation *** electrical tracking/erosion and poor flame resistance performance of silicone rubber once ignited,substantially reduce its working *** paper attempts to investigate tracking/erosion performance of room temperature vulcanized(RTV)silicone rubber along with flame retardant parameters using aluminum trihydrate(ATH),graphene nanosheets(GN)and milled glass fiber(GF)*** inclined plane test(IPT)was performed in line with criteria defined in IEC 60587 using step-up tracking voltage method while flame retardancy is evaluated according to ASTm E 1354.0 using a cone *** suggest 30% of ATH assists in improving physical tracking/erosion resistance of pristine silicone elastomer rubber by impeding development of leakage current and a great reduction in maximum average temperatures on the surface of *** improvement in performance of RTV2 is achieved through introduction of 1%of GN and 5% of GF as seen in ***,30% of ATH reduces heat release rate and smoke production rate,and this trend is improved with the introduction of GN/***4 has pop up as the most promising silicone rubber composite with excellent electrical tracking,erosion,and flame resistance performance relative to its counterparts in this study.

关键词： Dry band arcing electrical tracking heat release rate leakage current silicone rubber smoke production rate

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Growth efficiency,intestinal biology,and nutrient utilization and requirements of black soldier fly(Hermetia illucens)larvae compared to monogastric livestock species:a review

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Journal of Animal Science and Biotechnology 2022年第5期13卷 1262-1281页

作者： mohammad m.Seyedalmoosavi manfred mielenz Teun Veldkamp Gurbuz das Cornelia C.metges Research Institute for Farm Animal Biology(FBN) Institute of Nutritional Physiology18196 DummerstorfGermany Wageningen UR Livestock ResearchP.O.Box 3386700AH WageningenNetherlands

In recent years,interest in the larvae of black soldier fly(BSF)(Hermetia illucens)as a sustainable protein resource for livestock feed has increased ***,knowledge on the nutritional and physiological aspects of this insect,especially compared to other conventional farmed animals is *** review presents a critical comparison of data on the growth potential and efficiency of the BSF larvae(BSFL)compared to conventional monogastric livestock *** of BSFL over other monogastric livestock species includes their high growth rate and their ability to convert low-grade organic waste into high-quality protein and fat-rich biomass suitable for use in animal *** using literature data suggest that BSFL are more efficient than broilers,pigs and fish in terms of conversion of substrate protein into body mass,but less efficient than broilers and fish in utilization of substrate gross energy to gain body *** growth efficiency varies greatly depending on the nutrient quality of their dietary *** might be associated with the function of their gastrointestinal tract,including the activity of digestive enzymes,the substrate particle characteristics,and their intestinal microbial *** conceived advantage of BSFL having an environmental footprint better than conventional livestock is only true if BSFL is produced on low-grade organic waste and its protein would directly be used for human ***,their potential role as a new species to better close nutrient cycles in agro-ecological systems needs to be reconsidered,and we conclude that BSFL is a complementary livestock species efficiently utilizing organic waste that cannot be utilized by other *** addition,we provide comparative insight into morpho-functional aspects of the gut,characterization of digestive enzymes,gut microbiota and fiber ***,current knowledge on the nutritional utilization and requirements of BSFL in te

关键词： Black soldier fly Comparative growth performance Farm animals Insects as feed Intestinal function Nutrient cycles Nutrition and physiology

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Nitrate removal from groundwater using chemically modified coconut husk based granular activated carbon:characterization of the adsorbent,kinetics and mechanism

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Systems microbiology and Biomanufacturing 2023年第2期3卷 370-383页

作者： Solomon K.m.Huno Jewel das Eric Dvan Hullebusch Ajit P.Annachhatre Eldon R.Rene Pollution Prevention and Resource Recovery Chair Group Department of Water SupplySanitation and Environmental EngineeringIHE Delft Institute of Water EducationP.O.Box 30152601 DA DelftThe Netherlands Environmental Engineering and management Department of EnvironmentEnergy and Climate ChangeSchool of EnvironmentResource and DevelopmentAsian Institute of Technology58 Moo 9Km.42Paholyothin HighwayP.O.Box 4Klong Luang 12120Pathum ThaniThailand National University of Ireland Galway University RoadGalway H91 TK33Ireland Bangladesh Council of Scientific and Industrial Research(BCSIR) BCSIR Laboratories ChattogramChattogram 4220Bangladesh Universite Paris Cite Institut de Physique du Globe de ParisCNRSF‑75005 ParisFrance School of Engineering Indian Institute of Technology MandiA4‑209MandiHimachal Pradesh 175001India

In this study,a highly porous chemically activated granular activated carbon(GAC)was prepared from coconut husk and tested as an adsorbent to remove nitrate from contaminated *** prepared GAC was characterized by Fouriertransform infrared spectroscopy(FTIR),thermogravimetric and differential thermal analysis(TGA/DTA),scanning electron microscopy(SEm)and the Brunauer-Emmett-Teller(BET)surface area(SBET)*** effects of various process parameters such as initial nitrate concentration,contact time and adsorbent dose on nitrate removal efficiency(response)by the modified GAC were investigated using the statistically significant response surface methodology and Box-Behnken design of *** experimental data were fitted to well-known adsorption isotherms and kinetic models to ascertain the mechanism of the adsorption *** of variance(ANOVA)was performed to determine the significance of the individual and the interactive effects of process variables on the *** BET surface area(SBET)and micropore volume of the prepared GAC from coconut husk was 1120 m^(2)/g and 0.392 cm^(3)/g,*** experimental results showed that physisorption was the main adsorption mechanism governing the process,while the rate of adsorption was limited at initial nitrate concentrations>10 mg/*** Langmuir mono-layer adsorption isotherm best fitted the experimental data with a maximum adsorption capacity of 6.0±1.3 mg/g(~92.5%)with an adsorbent dose of 0.1 g/50 mL,an equilibrium time of 6 h at 28±2℃,and at pH 7.6(±0.2).Among the tested process variables,the adsorbent dose and initial nitrate concentration showed significant effects on the nitrate removal efficiency.

关键词： Nitrate adsorption Groundwater Granular activated carbon Response surface methodology(RSm) Box-Behnken Coconut Husk

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AdsorbmL: a leap in efficiency for adsorption energy calculations using generalizable machine learning potentials

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npj Computational materials 2023年第1期9卷 565-573页

作者： Janice Lan Aini Palizhati muhammed Shuaibi Brandon m.Wood Brook Wander Abhishek das matt Uyttendaele C.Lawrence Zitnick Zachary W.Ulissi Fundamental AI Research(FAIR) Meta AIMetaMenlo ParkCAUSA Department of Chemical Engineering Carnegie Mellon UniversityPittsburghPAUSA Scott Institute for Energy Innovation Carnegie Mellon UniversityPittsburghPAUSA

Computational catalysis is playing an increasingly significant role in the design of catalysts across a wide range of applications.A common task for many computational methods is the need to accurately compute the adsorption energy for an adsorbate and a catalyst surface of ***,the identification of low-energy adsorbate-surface configurations relies on heuristic methods and researcher *** the desire to perform high-throughput screening increases,it becomes challenging to use heuristics and intuition *** this paper,we demonstrate machine learning potentials can be leveraged to identify low-energy adsorbate-surface configurations more accurately and *** algorithm provides a spectrum of trade-offs between accuracy and efficiency,with one balanced option finding the lowest energy configuration 87.36%of the time,while achieving a~2000×speedup in *** standardize benchmarking,we introduce the Open Catalyst Dense dataset containing nearly 1000 diverse surfaces and~100,000 unique configurations.

关键词： adsorption configuration energy

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Whither Second-Sphere Coordination?

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CCS Chemistry 2022年第3期4卷 755-784页

作者： Wenqi Liu Partha J.das Howard m.Colquhoun J.Fraser Stoddart Department of Chemistry Northwestern UniversityEvanstonIL 60208 Department of Chemistry University of ReadingReading RG66DX School of Chemistry University of New South WalesSydneyNSW 2052 Department of Chemistry Stoddart Institute of Molecular ScienceZhejiang UniversityHangzhou 310027 ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou 311215

The properties of coordination complexes are dictated by both the metals and the *** use of molecular receptors as second-sphere ligands enables significant modulation of the chemical and physical properties of coordination *** this minireview,we highlight recent advances in functional systems based on molecular receptors as second-sphere coordination ligands,as applied in molecular recognition,synthesis of mechanically interlocked molecules,separation of metals,catalysis,and biomolecular *** functional systems demonstrate that second-sphere coordination is an emerging and very promising strategy for addressing societal challenges in health,energy,and the environment.

关键词： catalysis coordination complexes mechanically interlocked molecules metal recovery molecular recognition supramolecular chemistry

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An Unsupervised Writer Identification Based on Generating Clusterable Embeddings

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Computer Systems Science & Engineering 2023年第8期46卷 2059-2073页

作者： m.F.mridha Zabir mohammad muhammad mohsin Kabir Aklima Akter Lima Sujoy Chandra das md Rashedul Islam Yutaka Watanobe Department of Computer Science and Engineering American International University BangladeshDhaka1229Bangladesh Department of Computer Science&Engineering Bangladesh University of Business&TechnologyDhaka1216Bangladesh Department of Computer Science and Engineering University of Asia PacificDhaka1216Bangladesh Department of Computer Science and Engineering University of AizuAizu-Wakamatsu965-8580Japan

The writer identification system identifies individuals based on their handwriting is a frequent topic in biometric authentication and verification *** to its importance,numerous studies have been conducted in various *** have established several learning methods for writer identification including supervised and unsupervised ***,supervised methods require a large amount of annotation data,which is impossible in most *** the other hand,unsupervised writer identification methods may be limited and dependent on feature extraction that cannot provide the proper objectives to the architecture and be *** paper introduces an unsupervised writer identification system that analyzes the data and recognizes the writer based on the inter-feature relations of the data to resolve the uncertainty of the features.A pairwise architecturebased Autoembedder was applied to generate clusterable embeddings for handwritten text ***,the trained baseline architecture generates the embedding of the data image,and the K-means algorithm is used to distinguish the embedding of individual *** proposed model utilized the IAm dataset for the experiment as it is inconsistent with contributions from the authors but is easily accessible for writer identification *** addition,traditional evaluation metrics are used in the proposed ***,the proposed model is compared with a few unsupervised models,and it outperformed the state-of-the-art deep convolutional architectures in recognizing writers based on unlabeled data.

关键词： Writer identification pairwise architecture clusterable embeddings convolutional neural network

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Composites for electric vehicles and automotive sector: A review

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Green Energy and Intelligent Transportation 2023年第1期2卷 86-108页

作者： Adil Wazeer Apurba das Chamil Abeykoon Arijit Sinha Amit Karmakar School of Laser Science and Technology Jadavpur UniversityKolkata 700032West BengalIndia Design Head-Freight Titagarh Wagons Limited756 AnandapurKolkata 700107India North West Composites Centre and Aerospace Research Institute Department of MaterialsFaculty of Science and EngineeringUniversity of ManchesterManchesterM139PLUK Department of metallurgical Engineering Kazi Nazrul UniversityAsansol 713340West BengalIndia Department of mechanical Engineering Jadavpur UniversityKolkata 700032West BengalIndia

The automotive sector is undergoing a significant transformation to address critical challenges affecting consumers and the *** of the most difficult tasks is reducing the weight of vehicles in order to minimize energy consumption.A ten percent decrease in curb weight is predicted to result in a six to eight percent reduction in energy *** materials having better strength to weight ratio are one of the finest options for planning,designing and manufacturing of the lightweight *** automobile sector,employment of composite materials would reduce the weight of electric vehicles as well as influence their aerodynamic prop***,it would decrease the consumption of fuel as well by cutting down harmful emissions and particulate *** developments in such technologies are studied over the last decade by automobile establishments and academic ***-reinforced polymers,particularly those established on glass and carbon fibers,have attracted attention of the automobile sector due to their high performance and lesser *** paper reviews the applications of various types of composite materials and the fabrication techniques of such composites in electric vehicles and ***,a comprehensive data breakdown of the lightweight materials statistics and figures on market analysis of high performance composite is ***,a discussion is made on the different applications of these ***,the details presented in this study should be useful for automobile companies to align with NET ZERO global mission while sustaining their businesses.

关键词： Composites Electric vehicles Fabrication techniques Hybrid vehicles

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Relationship between the microstructure and properties of thermomechanically processed Fe-17mn and Fe-17mn-3Al steels

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International Journal of minerals,metallurgy and materials 2019年第1期26卷 64-75页

作者： Renuprava Dalai Siddhartha das Karabi das Department of metallurgical and materials Engineering Indian Institute of Technology

Two austenitic mn steels(Fe-17 mn and Fe-17 mn-3 Al(wt%, so as the follows)) were subjected to thermomechanical processing(TmP) consisting of forging followed by solutionization and hot rolling. The rolled samples were annealed at 650 and 800°C to relieve the internal stress and to induce recrystallization. The application of TmP and heat treatment to the Fe-17 mn/Fe-17 mn-3 Al steels refined the austenite grain size from 169 μm in the as-solutionized state to 9–13 μm, resulting in a substantial increase in hardness from HV 213 to HV 410 for the Fe-17 mn steel and from HV 210 to HV 387 for the Fe-17 mn-3 Al steel. The elastic modulus values, as evaluated by the nanoindentation technique, increased from(175 ± 11) to(220 ± 12) GPa and from(163 ± 15) to(205 ± 13) GPa for the Fe-17 mn and Fe-17 mn-3 Al steels, respectively. The impact energy of the thermomechanically processed austenitic mn steels was lower than that of the steels in their as-solutionized state. The addition of Al to the Fe-17 mn steel decreased the hardness and elastic modulus but increased the impact energy.

关键词： austenitic manganese steel(AmS) thermomechanical processing(TmP) microstructure property hardness elastic modulus

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Study on demand and characteristics of parking system in urban areas:A review

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Journal of Traffic and Transportation Engineering(English Edition) 2020年第1期7卷 111-124页

作者： Janak Parmar Pritikana das Sanjaykumar m.Dave Department of Civil Engineering Faculty of Technology and EngineeringThe Maharaja Sayajirao University of BarodaVadodara 390001India Transportation Planning and Environment Division CSIR-Central Road Research InstituteNew Delhi 110025India

The increasing rate of private car usage in the urban areas as a result of fast-growing economy,derelict policies and subsidies are the main causes making car parking one of the main concerns for transport and traffic management all over the *** coordination between parking policies and traffic management revealed how parking is becoming a barrier to the through-traffic ***,it is responsible for the inefficient use of available resources,even the decisions are made on an ad-hoc basis while making ***,it is necessary to understand the parking choice behaviour and actual demand of parking *** the last three decades,ample studies have been done to evaluate parking characteristics,to estimate the demand for parking and on driver’s behaviour while choosing the parking *** paper integrates all these aspects and presents the state-of-the-art review of models and studies on the parking *** related to and due to the parking,various parking characteristics and their applications,parking choice behaviour of drivers,development of demand models considering various factors and review of parking policies as an integral part of the urban transport system are discussed in *** underdeveloped,authors found the literatures suggest that greater attention should be given to metrics like ease of access,walk time,parking charges,parking guidance and information system,management,etc.,at all stages of planning and policy *** together,mentioned studies demonstrate useful information concerning the entire parking *** also provides useful information to the planners and policy makers for planning,designing and evaluating parking system.

关键词： Transportation engineering Parking demand and capacity Parking characteristics Parking choice behaviour Policy guideline Planning and management

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The proteome landscape of the root cap reveals a role for the jacalin-associated lectin JAL10 in the salt-induced endoplasmic reticulum stress pathway

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Plant Communications 2023年第6期4卷 179-196页

作者： Krishna Kodappully das Ankita mohapatra Abin Panackal George Sreenivas Chavali Katja Witzel Eswarayya Ramireddy Department of Biology Indian Institute of Science Education and Research(IISER)TirupatiTirupati 517507Andhra PradeshIndia Leibniz Institute of Vegetable and Ornamental Crops Theodor-Echtermeyer-Weg 114979 GroßbeerenGermany

Rapid climate change has led to enhanced soil salinity,one of the major determinants of land degradation,resulting in low agricultural *** has a strong negative impact on food security and environmental *** display various physiological,developmental,and cellular responses to deal with salt *** studies have highlighted the root cap as the primary stress sensor and revealed its crucial role in *** root cap covers the primary root meristem and is the first cell type to sense and respond to soil salinity,relaying the signal to neighboring cell ***,it remains unclear how root-cap cells perceive salt stress and contribute to the salt-stress ***,we performed a root-cap cell-specific proteomics study to identify changes in the proteome caused by salt *** study revealed a very specific salt-stress response pattern in root-cap cells compared with non-rootcap cells and identified several novel proteins unique to the root ***-cap-specific protein–protein interaction(PPI)networks derived by superimposing proteomics data onto known global PPI networks revealed that the endoplasmic reticulum(ER)stress pathway is specifically activated in root-cap cells upon salt ***,we identified root-cap-specific jacalin-associated lectins(JALs)expressed in response to salt stress.A JAL10-GFP fusion protein was shown to be localized to the *** of jal10 mutants indicated a role for JAL10 in regulating the ER stress pathway in response to *** together,our findings highlight the participation of specific root-cap proteins in salt-stress response ***,root-cap-specific JAL proteins and their role in the salt-mediated ER stress pathway open a new avenue for exploring tolerance mechanisms and devising better strategies to increase plant salinity tolerance and enhance agricultural productivity.

关键词： Arabidopsis root cap cell-type specific proteomics salt stress ER stress jacalin-associated lectin

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