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Spatial Thermal Crack Control in Mass Concrete

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结构工程师 2012年第6期28卷 54-59页

作者： Munishi fred Abel ZHANG Shengdong LI Minying Department of Building Engineering Tongji University Shanghai 200092 China Shanghai No. 7 Construction Co. Ltd. Shanghai 200050 China

The finite element software,MIDAS is used to predict the distribution of temperatures and,analyzes the cracking control methods within a hydrating mass *** temperature control of mass concrete has great significance in assuring the project *** or semi adiabatic temperature measurement is mostly used for measuring and controlling the temperature fluctuation during *** temperature distribution produced by the finite element thermal analysis of the model is used to quantify the maximum allowable internal temperature difference before crack initiation on *** study analyzes the data from one high-rise structure project in Shanghai are used to verify the finite element model *** suggest that reliance on a limiting maximum temperature differential to control cracking in massive concrete applications should be supplemented with a requirement for analysis showing the calculated spatial temperature and stress response to the predicted temperature distribution within the concrete,to ensure that the induced tensile stresses will not exceed the tensile strength of the concrete and so minimize the risk of having thermal cracks at early age.

关键词：温度分布混凝土施工技术应力

Direct Load Control of Thermostatically Controlled Loads Based on Sparse Observations Using Deep Reinforcement Learning

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CSEE Journal of Power and Energy Systems 2019年第4期5卷 423-432页

作者： frederik Ruelens Bert J.Claessens Peter Vrancx fred Spiessens Geert Deconinck Department of Electrical Engineering KU Leuven/EnergyVille3001 LeuvenBelgium REstore Centrica2600 AntwerpBelgium AI-lab Vrije Universiteit Brussel1050 BrusselsBelgium Vito/EnergyVille 2600 MolBelgium

This paper considers a demand response agent that must find a near-optimal sequence of decisions based on sparse observations of its *** a relevant set of features from these observations is a challenging task and may require substantial domain *** way to tackle this problem is to store sequences of past observations and actions in the state vector,making it high dimensional,and apply techniques from deep *** paper investigates the capabilities of different deep learning techniques,such as convolutional neural networks and recurrent neural networks,to extract relevant features for finding near-optimal policies for a residential heating system and electric water heater that are hindered by sparse *** simulation results indicate that in this specific scenario,feeding sequences of time-series to an Long Short-Term Memory(LSTM)network,which is a specific type of recurrent neural network,achieved a higher performance than stacking these time-series in the input of a convolutional neural network or deep neural network.

关键词： Convolutional networks deep reinforcement learning long short-term memory residential demand response

Proteomic analyses of the SMYD family interactomes identify HSP90 as a novel target for SMYD2

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Journal of Molecular Cell Biology 2011年第5期3卷 301-308页

作者： Mohamed Abu-Farha Sylvain Lanouette fred Elisma Veronique Tremblay Jeffery Butson Daniel Figeys Jean-Francois Couture Ottawa Institute of Systems Biology Department of BiochemistryMicrobiology and ImmunologyUniversity of Ottawa451 Smyth RoadRoger-Guindon HallOttawaONK1H8M5Canada Biochemistry and Molecular Biology Unit Dasman Diabetes InstituteDasman 15462Kuwait

The SMYD(SET and MYND domain)family of lysine methyltransferases(KMTs)plays pivotal roles in various cellular processes,including gene expression regulation and DNA damage *** identified as genuine histone methyltransferases,specific members of this family have recently been shown to methylate non-histone proteins such as p53,VEGFR,and the retinoblastoma tumor suppressor(pRb).To gain further functional insights into this family of KMTs,we generated the protein interaction network for three different human SMYD proteins(SMYD2,SMYD3,and SMYD5).Characterization of each SMYD protein network revealed that they associate with both shared and unique sets of *** those,we found that HSP90 and several of its co-chaperones interact specifically with the tetratrico peptide repeat(TPR)-containing SMYD2 and ***,using proteomic and biochemical techniques,we provide evidence that SMYD2 methylates K209 and K615 on HSP90 nucleotide-binding and dimerization domains,*** addition,we found that each methylation site displays unique reactivity in regard to the presence of HSP90 co-chaperones,pH,and demethylation by the lysine amine oxidase LSD1,suggesting that alternative mechanisms control HSP90 methylation by ***,this study highlights the ability of SMYD proteins to form unique protein complexes that may underlie their various biological functions and the SMYD2-mediated methylation of the key molecular chaperone HSP90.

关键词： SMYD proteins HSP90 lysine methylation SET domain histone methylation

The SDG Project:A Long-Term Project under Technological Uncertainty

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Engineering 2020年第6期6卷 600-603页

作者： fred Phillips University of New Mexico AlbuquerqueNM 87131USA

*** A second"Warning to Humanity"issued by 15000 scientists from across the globe[1],the"disappointing"COP25 meeting(25th Conference of the Parties to the United Nations Framework Convention on Climate Change)[2],and a"grim"United Nations report[3]imply that the ability of Earth's environment to support human life will persist for a much shorter time than the 200 years predicted by physicist Stephen Hawking.

关键词： shorter issued pointing

Nitric oxide removal by wastewater bacteria in a biotrickling filter

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Journal of Environmental Sciences 2014年第3期26卷 555-565页

作者： Hejingying Niu Dennis Y C Leung Chifat Wong Tong Zhang Mayngor Chan fred C C Leung Department of Mechanical Engineering The University of Hong Kong School of Biological Sciences The University of Hong Kong Department of Civil Engineering The University of Hong Kong

Nitric oxide （NO） is one of the most important air pollutants in atmosphere mainly emitted from combustion source. A biotriclding filter was designed and operated to remove NO from an air stream using bacteria extracted from the sewage sludge of a municipal sewage treatment plant. To obtain the best operation conditions for the biotrickling filter, orthogonal experiments （L9（34）） were designed. Inlet oxygen concentration was found to be the most significant factor of the biotrickling filter and has a significant negative effect on the system. The optimal conditions of the biotrickling filter occurred at a temperature of 40℃, a pH of 8.0 and a chemical oxygen demand of 165 mg/L in the recycled water with no oxygen in the system. The bacteria sample was detected by DNA sequencing technology and showed 93%-98% similarity to Pseudomonas mendocina. Moreover, a full gene sequencing results indicated the bacterium was a brand new strain and named as P. mendocina DLHK. This strain can transfer nitrate to organic nitrogen. The result suggested the assimilation nitrogen process in this system. Through the isotope experimental analysis, two intermediate products （^15NO and ^15N2O） were found. The results indicated the denitrification function and capability of the biotrickling filter in removing NO.

关键词： NO reduction biotrickling filter orthogonal experiment Pseudomonas mendocina isotope labeling

Numerical aerodynamic analysis of bluff bodies at a high Reynolds number with three-dimensional CFD modeling

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Science China(Physics,Mechanics & Astronomy) 2013年第2期56卷 277-289页

作者： BAI YuGuang YANG Kai SUN DongKe ZHANG YuGuang KENNEDY David WILLIAMS fred GAO XiaoWei State Key Laboratory of Structural Analysis for Industrial Equipment Faculty of Vehicle Engineering and MechanicsDalian University of Technology Cardiff School of Engineering Cardiff UniversityCardiff CF24 3AAWalesUK

This paper focuses on numerical simulations of bluff body aerodynamics with three-dimensional CFD(computational fluid dynamics) modeling,where a computational scheme for fluid-structure interactions is *** choice of an appropriate turbulence model for the computational modeling of bluff body aerodynamics using both two-dimensional and three-dimensional CFD numerical simulations is also *** efficient mesh control method which employs the mesh deformation technique is proposed to achieve better simulation *** long-span deck sections are chosen as examples which were stationary and pitching at a high Reynolds *** the proposed CFD method and turbulence models,the force coefficients and flutter derivatives thus obtained are compared with the experimental measurement results and computed values completely from commercial ***,a discussion on the effects of oscillation amplitude on the flutter instability of a bluff body is carried out with extended numerical *** numerical analysis results demonstrate that the proposed three-dimensional CFD method,with proper turbulence modeling,has good accuracy and significant benefits for aerodynamic analysis and computational FSI studies of bluff bodies.

关键词： bluff body aerodynamic analysis fluid-structure interaction three-dimensional CFD modeling flutter

Dissemination paradox:how contextual realities influence smallholder farmers'modifications of agroforestry technologies in Uganda's *** region

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Journal of Mountain Science 2022年第5期19卷 1404-1418页

作者： fred KALANZI Prossy ISUBIKALU Florence Birungi KYAZZE Lawrence Justus Baguma ORIKIRIZA Clement OKIA Isaac KIYINGI National Agricultural Research Organisation(NARO) Entebbe 295Uganda Department of Extension and Innovation Studies Makerere UniversityKampala 7062Uganda Department of Forestry Biodiversity and TourismMakerere UniversityKampala 7062Uganda Faculty of Agriculture and Environmental Sciences Muni UniversityArua 725Uganda

This study was intended to understand how smallholder farmers’modifications improved agroforestry technologies’usability in Uganda’s *** *** used a case study approach to understand how smallholder farmers’contextual realities informed their modifications and enhanced the usability of agroforestry *** was collected over four months of frequent and regular interaction with the cases using formal and informal methods that included in-depth interviews,conversations,discussions,and direct *** themes and patterns were identified from the comprehensively reduced *** addition,respondents’direct quotes were used to emphasize the reasons for the *** findings showed that smallholder farmers modified the recommended technologies to suit their biophysical and socio-economic *** and similarities in modifications existed among cases across the agroforestry *** modifications were mainly done to diversify tree uses,optimize space utilization,and minimize production costs for farming *** findings imply a need to critically examine the smallholder farmers’modifications to make agroforestry technologies applicable and compliant to their *** will inform the re-invention of technologies that will quickly diffuse into the community for broader *** also emphasize the need to rethink the linear model of technology transfer mainly applied in agroforestry technology development and dissemination because it offers limited space for the much-needed feedback from smallholder farmers.

关键词： Modifications Agroforestry technology Usability Farm productivity Smallholder farmer

Marker Assisted Selection in Citrus Rootstock Breeding Based on a Major Gene Locus ‘Tyr1’Controlling Citrus Nematode Resistance

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Agricultural Sciences in China 2010年第4期9卷 557-567页

作者： XIANG Xu DENG Zhan-ao CHEN Chun-xian fred G Gmitter Jr Kim Bowman Institute of Fruit Tree Research Guangdong Academy of Agricultural Sciences Guangzhou 510640 P.R.China Gulf Coast Research and Education Center University of Florida Bradenton FL34203 USA Citrus Research and Education Center University of Florida Lake Alfred FL33850 USA US Horticultural Research Laboratory United States Department of Agriculture Ft. Pierce FL34945-3030 USA

Based on the former constructed ＇Tyrl＇ locus genetic map in family 9145, from LB6-2 [Clementine mandarin （C. reticulata） × Hamlin orange （C. sinensis）] × Swingle citrumelo （C. paradise × P. trifoliata）, 9 markers were chosen for application in evaluating their effectiveness in marker-assisted selection （MAS） for citrus rootstock breeding program from many F1 progeny of Poncirus trifoliata. As the mapping revealed that these markers were estimated within a range of 12.1 cM in the linkage group, and among them, SCO07 co-segregated with ＂Tyrl＇, and 7A4R as the closest to ＇Tyrl＇ with a distance of 1.5 cM, these markers were basically fitful to go MAS screening. The results of screening P. trifoliata F1 progeny indicated that all the markers were inherited in codominant fashion and most of them were heterozygous on PT （Pomery of P. trifoliata）., marker 4L17R/CfoI and 7A4（1407）/BfaI were proved to be consistently reliable for accurate scoring of genotypes and the revealed polymorphism was basically coincided with the citrus nematode resistant phenotype within tested populations. The polymorphic genotype with marker 4L17R/Cfol was found completely matched up with the phenotype of individuals that conferred high resistance to citrus nematode when the USDA hybrid rootstocks were screened. Utilization of these markers, especially the highly specific 4L17R/Cfol and 7A4（1407）/Bfal, should result in great benefit to world citrus industry for early selection in rootstock-breeding program.

关键词： citrus Poncirus trifoliata nematode resistance marker-assisted selection

Construction of citrus gene coexpression networks from microarray data using random matrix theory

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Horticulture Research 2015年第1期2卷 193-200页

作者： Dongliang Du Nidhi Rawat Zhanao Deng fred G.Gmitter Jr. Citrus Research and Education Center Institute of Food and Agricultural SciencesUniversity of FloridaLake AlfredFL 33850USA Gulf Coast Research and Education Center Institute of Food and Agricultural SciencesUniversity of FloridaWimaumaFL 33598USA

After the sequencing of citrus genomes,gene function annotation is becoming a new *** coexpression analysis can be employed for function annotation using publicly available microarray data *** this study,230 sweet orange(Citrus sinensis)microarrays were used to construct seven coexpression networks,including one condition-independent and six condition-dependent(Citrus canker,Huanglongbing,leaves,flavedo,albedo,and flesh)*** total,these networks contain 37633 edges among 6256 nodes(genes),which accounts for 52.11%measurable genes of the citrus ***,these networks were partitioned into functional modules using the Markov Cluster *** enriched Gene Ontology biological process terms and KEGG pathway terms were detected for 343 and 60 modules,***,independent verification of these networks was performed using another expression data of 371 *** study provides new targets for further functional analyses in citrus.

关键词： measurable orange partitioned