检索结果-南通市图书馆

Bioaugmentation of two-stage aerobic sequencing batch reactor with mixed strains for high nitrate nitrogen wastewater treatment

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2020年第12期28卷 3103-3109页

作者： mengmeng wang Gang Cao Naixian Feng Yongzhang Pan College of Environment Jinan UniversityGuangzhou 511443China Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials College of Life Science and TechnologyJinan UniversityGuangzhou 510632China

Mixed strains Delftia ***01 and Acidovorax ***02,with capability of heterotrophic nitrification-aerobic denitrification,were introduced into a two-stage aerobic sequencing batch reactor to enhance NO3^--N *** optimal C/N of 8,efficient NO3^--N removal was achieved at initial NO3^--N concentration of 2000 mg·L−***,the massive accumulation of NO2^--N was avoided during the long *** to the one-stage aerobic sequencing batch reactor,the removal efficiency of NO3^--N and TN in the two-stage aerobic sequencing batch reactor was increased by 36.5% and 42.7%,which respectively was 93.8% and 88.4%.Microbial community study showed that the mixed strains have the stronger viability and can synergistically denitrify with the indigenous microorganisms in system,such as Azoarcus,Uncultured Saprospiraceae,Thauera,Paracocccus,which could be major contributors for aerobic *** proposed technology was shown to achieve high-efficiency treatment of high NO3^--N wastewater through aerobic denitrification.

关键词： Waste water Biological engineering Bioreactors Aerobic denitrification Bioaugmentation Microbial community

Price squeeze under fairness: the road to supply chain coordination with a powerful retailer

在线全文

学校读者我要写书评

暂无评论

Journal of Management Analytics 2022年第4期9卷 448-479页

作者： mengmeng wang Xiaojing Feng Antai College of Economics&Management Shanghai Jiao Tong UniversityShanghaiPeople’s Republic of China West Institute for Economic Research Southwestern University of Finance and EconomicsChengduPeople’s Republic of China

This research investigates the impacts of the manufacturer’s fairness concerns on the supply chain performance when the power retailer implements a price squeeze and market service investment *** game-theoretic modeling,we find that 1)in the absence of fairness,although the manufacturer may be worse off due to possessing imperfect information on the price squeeze rate,the channel may be coordinated through an ex-ante negotiation between the two parties.2)When the manufacturer has fairness concerns for price squeeze,both channel performance and brand goodwill are made worse by disadvantageous inequality and improved by advantageous inequality versus the case of no fairness ***,channel members’ex-ante negotiations regarding a profit reallocation scheme under certain conditions may achieve the following three objectives:generating a channel profit of the coordination level,promoting brand goodwill to the level of the integrated channel,and creating an equitable channel relationship.

关键词： behavioral operations management power retailer fairness channel coordination price squeeze bargaining

Assessment of piloting behavior impact on landing risk of transport aircraft

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Aeronautics 2024年第9期37卷 178-192页

作者： Zhiyue XIONG Shuguang ZHANG Mingkai wang Peng TANG mengmeng wang School of Transportation Science and Engineering Beihang UniversityBeijing 102206China

The human factors and their interaction with other factors play an important role in the flight safety of transport *** this paper,a paradigm of risk assessment for transport aircraft interacting with piloting behaviors is proposed,with focus on landing which is the most accident-prone flight stage in aviation safety ***-based flight simulation serves as our data source for landing risk analysis under uncertainties.A digital pilot in the loop that reflects the human piloting behaviors is employed to facilitate simulation *** types of unsafe events in landing are identified from *** this basis,the landing safety boundary is extracted via stochastic simulation to divide safety and hazardous flight status domains,which con-tributes to flight status management and risk *** simulation results indicate that appro-priate piloting behavior,which is active response and fast target acquisition with minimum overshoot and fluctuation,shows benefit to landing *** subset simulation technique is employed to further refine the boundary with less computational ***,the effect of airspeed,windspeed,and other factors on landing risk is also *** proposed risk assess-ment method would help optimize operation procedure and develop targeted pilot training program.

关键词： Landing risk assessment Risk parameterization Human factors Piloting behavior model Landing safety boundary Subset simulation

Research on Artificial Lateral Line Perception of Flow Field based on Pressure Difference Matrix

在线全文

学校读者我要写书评

暂无评论

Journal of Bionic Engineering 2019年第6期16卷 1007-1018页

作者： Guijie Liu Shuikuan Liu Shirui wang Huanhuan Hao mengmeng wang Key Laboratory of Ocean Engineering of Shandong Province Ocean University of ChinaQingdao 266100China

In nature,with the help of lateral lines,fish is capable of sensing the state of the flow field and recognizing the surrounding near-fleld hydrodynamic environment in the condition of weak light or even complete *** order to study the application of lateral lines,an improved pressure distribution model was proposed in this paper,and the pressure distributions of the lateral line carrier under different working conditions were obtained using hydrodynamic ***,a visualized pressure difference matrix was constructed to identify the flow fields under different working *** role of the lateral lines was investigated from a visual image *** features of different flow velocities,flow angles and obstacle offset distances were mapped into the pressure difference ***,a four-layer Convolutional Neural Network(CNN)model was built as a recognition tool to evaluate the effectiveness of the pressure difference matrix *** recognition results demonstrate that the CNN can identify the flow field state with 2 s earlier than the current ***,the proposed method provides a new way to identify flow field information in engineering applications.

关键词： artificial lateral line system bioinspiration pressure difference matrix convolutional neural network flow field visualization

Responses of butachlor degradation and microbial properties in a riparian soil to the cultivation of three different plants

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2011年第9期23卷 1437-1444页

作者： Changming Yang mengmeng wang Haiyan Chen Jianhua Li State Key Laboratory of PoUution Control and Resource Reuse Tongji University Shanghai 200092 China Key Laboratory of Yangtze River Water Environment of the Ministry of Education Tongji University Shanghai 200092 China

A pot experiment was conducted to investigate the biodegradation dynamics and related microbial ecophysiological responses to butachlor addition in a riparian soil planted with different plants such as Phragmites australis,Zizania aquatica,and Acorus *** results showed that there were significant differences in microbial degradation dynamics of butachlor in the rhizosphere soils among the three riparian *** displays a significantly higher degradation efficiency of butachlor in the rhizosphere soils,as compared with *** and ***-life time of butachlor degradation in the rhizospheric soils of ***,***,and *** were 7.5,9.8 and 5.4 days,*** butachlor concentration in *** rhizosphere soil was 35.2% and 21.7% lower than that in *** and *** rhizosphere soils,respectively,indicating that *** showed a greater improvement effect on biodegradation of butachlor in rhizosphere soils than the other two riparian *** general,microbial biomass and biochemical activities in rhizosphere soils were depressed by butachlor addition,despite the riparian plant ***,rhizospheric soil microbial ecophysiological responses to butachlor addition significantly （P 0.05） differed between riparian plant *** to *** and ***,*** showed significantly larger microbial number,higher enzyme activities and soil respiration rates in the rhizosphere *** results indicated that *** have a better alleviative effect on inhibition of microbial growth due to butachlor addition and can be used as a suitable riparian plant for detoxifying and remediating butachlor contamination from agricultural nonpoint pollution.

关键词： riparian wetland butachlor rhizospheric degradation soil microflora enzymatic activities basal respiration

Loss of C9orf72 in Microglia Drives Neuronal Injury by Enhancing Synaptic Pruning in Aged and Alzheimer’s Disease Mice

在线全文

学校读者我要写书评

暂无评论

Neuroscience Bulletin 2022年第3期38卷 327-330页

作者： mengmeng wang Yuanyuan Jiang Zhihui Huang School of Pharmacy Hangzhou Normal UniversityHangzhou311121China Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines Engineering Laboratory of Development and Application of Traditional Chinese MedicinesCollaborative Innovation Center of Traditional Chinese Medicines of Zhejiang ProvinceHangzhou Normal UniversityHangzhou311121China

Many diseases are caused by the expansion of simple sequence repeats scattered throughout the human genome;they are defined as repeat expansion *** size of the repeat unit ranges from trinucleotides(the vast majority)to tetranucleotides,pentanucleotides,hexan cleotides,and even dodecanucleotides[1].Expansions of the hexanucleotide GGGGCC in the C9orf72 gene are the most frequent genetic cause of amyotrophic lateral sclero・sis(ALS)and frontotemporal dementia(FTD)[2].In addition to ALS and FTD,C9orf72 repeat expansions may also be associated with Alzheimer's disease(AD),since the rate of such expansions in AD cases(0.57%)is higher than normal(0.11%)[3].However,the exact role of C9orf72 in AD is still unclear.

关键词： C9orf72 Alzheimer diseases

Scientometric of Nearly Zero Energy Building Research: A Systematic Review from the Perspective of Co-Citation Analysis

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Thermal Science 2019年第6期28卷 1104-1114页

作者： wang mengmeng LIU Xiaojun FU Hanliang CHEN Baiyu School of Management Xi’an University of Architecture and TechnologyXi’an 710055China College of Engineering University of California BerkeleyCA 94720USA Department of Technology Illinois State UniversityIL 61790-0001USA

As an important building type to diminish energy use and greenhouse gas emissions in the construction industry, nearly zero energy building(nZEB) has attracted much attention from many scholars, with volumes of research findings published. However, quantitative and systematic reviews on those findings are rarely conducted by researchers. Therefore, a visualized presentation regarding the advancement of nZEB research was made in this study by applying the scientometric method of co-citation analysis to 704 publications retrieved from the Web of Science database from 2006 to 2018. Here, the key conclusions drawn after the research are as follows:(1) Italy, the USA and Spain are the top three nations by the number of nZEB publications;(2) Energy and Buildings, Applied Energy and Energy are the journals with the highest number of published nZEB articles;(3) Politecnico di Milano, Aalto University and Politecnico di Torino are the most influential core organizations in the field of nZ EB;(4) Professor Kurnitski J, Professor Corgnati SP and Professor D’Agostino D are the leading nZEB experts;(5) "cost optimal", "life cycle assessment", "technical system", "design" and "indoor environment quality" are the major research directions in the field of nZEB;(6) A multi-stage optimization method for cost-optimal and nearly zero-energy building solutions in line with the EPBD 2010, co-authored by Hamdy M, is the most cited nZEB reference;(7) "residential building", "building energy saving technology", "simulation method" and "thermal comfort", etc. are the hot topics in nZEB research at present and in the future. This research is designed to provide valuable information for scholars interested in the field of nZEB.

关键词： nearly zero energy building(nZEB) scientometric co-citation CiteSpace

SFR-Net:sample-aware and feature refinement network for cross-domain micro-expression recognition

在线全文

学校读者我要写书评

暂无评论

Optoelectronics Letters 2023年第7期19卷 437-442页

作者： LIU Jing JI Xinyu wang mengmeng School of Electrical and Information Engineering Tianjin UniversityTianjin 300072China Key Laboratory of Artificial Intelligence Ministry of EducationShanghai 200240China

Over the past several decades,micro-expression recognition(MER) has become a growing concern for scientific *** the filming conditions vary from database to database,previous single-domain MER methods generally exhibit severe performance drop when applied to another *** deal with this pressing problem,in this paper,a sample-aware and feature refinement network(SFR-Net) is proposed,which combines domain adaptation with deep metric learning to extract intrinsic features of micro-expressions for accurate *** the help of decoders,siamese networks increasingly refine shared features relevant to emotions while exclusive features irrelevant to emotions are gradually obtained by private *** order to achieve promising performance,we further design sample-aware loss to constrain the feature distribution in the high-dimensional feature *** results show the proposed algorithm can effectively mitigate the diversity among different micro-expression databases,and achieve better generalization performance compared with state-of-the-art methods.

关键词： database Net refinement

Interconnected graphene scaffolds for functional gas sensors with tunable sensitivity

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2020年第23期58卷 16-23页

作者： Xiao You Jinshan Yang mengmeng wang Hongda wang Le Gao Shaoming Dong State Key Laboratory of High Performance Ceramics&Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai200050China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing100049China Structural Ceramics and Composites Engineering Research Center Shanghai Institute of CeramicsChinese Academy of SciencesShanghai200050China University of Chinese Academy of Sciences Beijing100039China

In this work,the interconnected graphene scaffolds are prepared by three-dimensional(3 D)printing for multifunctional gas detection with tunable *** scaffolds with regularly aligned graphene conductive networks exhibit significant mechanical strength and high electrical stability to multi-direction deformation,which can be attributed to the typical core-shell structure of graphene and *** resistance of the free-standing scaffolds can realize the real-time response to H_(2) O and NO_(2),and the relative resistance change to 100 ppm H_(2) O and 100 ppm NO_(2) can reach 2%and 2.5%,*** charge doping of the oxidizing gases is considered to be the main reason for various response sensitivities of the scaffolds with different orthogonal layers,in which the interconnected conductive network can generate a large specific surface area and significantly improving the adsorption of the target gases and the transfer of *** controllable fabrication of regular structure has appropriately great potential for further optimizations and applications in gas detection.

关键词： Graphene scaffolds Interconnected network 3D printing Gas sensors Multifunctional gas detection