检索结果-南通市图书馆

Health risk assessment of municipal solid waste incineration emissions based on regression analysis

Eco-Environment & Health 2024年第3期3卷 338-346页

作者： Zhuoshi Huang Jicui Cui Abdoulaye Boré Wenchao ma Ziyi Zhang zhi Qiao Ziyang Lou Johann Fellner School of Environmental Science and Engineering Tianjin UniversityTianjin 300072China Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province College of Ecology and EnvironmentHainan UniversityHaikou 570228China Offshore Environmental Technology&Services Limited Beijing 100027China Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery School of Environmental Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Christian Doppler Laboratory for Anthropogenic Resource Institute for Water Quality and Resource ManagementTU WienKarlsplatz 13/2261040 ViennaAustria

This study examined the potential health risks posed by the operation of 96 waste-to-energy(WtE)plants in 30 cities in the Bohai Rim of *** a sophisticated simulation approach,the Weather Research and Forecasting(WRF)model coupled with the California Puff(CALPUFF)model,we obtained the spatial distribution of pollutants emitted by WtE plants in the *** indices(HI)and cancer risks(CR)were calculated for each plant using the United States Environmental Protection Agency's recommended *** results indicated that both HIs and CRs were generally low,with values below the accepted threshold of 1.0 and 1.0×10^(-6),***,the average HI and CR values for the entire study area were 2.95×10^(-3)and 3.43×10^(-7),***,some variability in these values was observed depending on the location and type of WtE plant.A thorough analysis of various parameters,such as waste composition,moisture content,and operating conditions,was conducted to identify the factors that influence the health risks associated with *** findings suggest that proper waste sorting and categorization,increased cost of construction,and elevated height of chimneys are effective strategies for reducing the health risks associated with ***,this study provides valuable insights into the potential health risks associated with WtE plants in the Bohai Rim region of *** findings can serve as useful guidelines for law enforcement wings and industry professionals seeking to minimize the risks associated with municipal solid waste(MSW)management and promote sustainable development.

关键词： Incineration WRF/CALPUFF Health risk assessment Ridge regression model MSW classification

来源：

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

Advancements in machine learning for material design and process optimization in the field of additive manufacturing

引用

China Foundry 2024年第2期21卷 101-115页

作者： Hao-ran Zhou Hao Yang Huai-qian Li Ying-chun ma Sen Yu Jian shi Jing-chang Cheng Peng Gao Bo Yu zhi-quan Miao Yan-peng Wei National Key Laboratory of Advanced Casting Technologies Shenyang Research Institute of Foundry Co.Ltd.CAMShenyang 110022China Department of Mechanical Engineering Tsinghua UniversityBeijing 100084China Key Laboratory of Space Physics Beijing 100076China School of materials Science and Engineering Nanyang Technological University639798Singapore

Additive manufacturing technology is highly regarded due to its advantages,such as high precision and the ability to address complex geometric ***,the development of additive manufacturing process is constrained by issues like unclear fundamental principles,complex experimental cycles,and high *** learning,as a novel artificial intelligence technology,has the potential to deeply engage in the development of additive manufacturing process,assisting engineers in learning and developing new *** paper provides a comprehensive overview of the research and applications of machine learning in the field of additive manufacturing,particularly in model design and process ***,it introduces the background and significance of machine learning-assisted design in additive manufacturing *** then further delves into the application of machine learning in additive manufacturing,focusing on model design and process ***,it concludes by summarizing and forecasting the development trends of machine learning technology in the field of additive manufacturing.

关键词： additive manufacturing machine learning material design process optimization intersection of disciplines embedded machine learning

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

LNG储罐试车过程

引用

化工设计通讯 2017年第8期43卷 87-88页

作者：巩志超马凯中石油江苏液化天然气有限公司江苏南通226001

介绍了LNG储罐的试车过程,包括储罐及附属管线的干燥吹扫、储罐置换、储罐及附属管线的冷却和充液,分析了每个阶段的控制要求和操作要点。

关键词： LNG储罐试车干燥吹扫置换冷却

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Hydration lubrication modulated by water structure at TiO2–aqueous interfaces

引用

Friction 2024年第4期12卷 591-605页

作者： Pingsu ma Yuan LIU Ke HAN Yu TIAN Liran ma State Key Laboratory of Tribology in Advanced Equipment Department of Mechanical EngineeringTsinghua UniversityBeijing 100084China

The nature of solid-liquid interfaces is of great significance in *** advances have been made in lubrication based on hydration ***,a detailed molecular-level understanding is still ***,we investigated water molecule behaviors at the TiO2-aqueous interfaces by the sum-frequency generation vibrational spectroscopy(SFG-VS)and atomic force microscope(AFM)to elucidate the fundamental role of solid-liquid interfaces in *** contributions of water structures and hydration effects were revealed,where water structures played the dominant role in lubrication for TiO2 surfaces of varying hydrophilicity,while hydration effects dominated with the increasing of ion *** lubrication is observed on the initial TiO2 surfaces with strongly H-bonded water molecules compared to the hydrophilic TiO2 surfaces with more disordered *** stable ordered water arrangement with strong hydrogen bonds and the shear plane occurring between the ordered water layer and subsequent water layer may play a significant role in achieving lower *** adsorbed hydrated molecules with the increasing ionic concentration perturb ordered water but lead to the enhancement of hydration effects,which is the main reason for the improved lubrication for both *** work provides more insights into the detailed molecular-level understanding of the mechanism of hydration lubrication.

关键词： hydration lubrication interfacial water structures hydration effects titanium dioxide(TiO2)

来源：

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

CToMP: a cycle-task-oriented memory protection scheme for unmanned systems

引用

Science China(Information Sciences) 2024年第6期67卷 399-417页

作者： Chengyan ma Ning XI Di LU Yebo FENG Jianfeng ma School of Cyber Engineering Xidian University School of Computer Science and Technology Xidian University Department of Computer and Information Science University of Oregon

Memory corruption attacks(MCAs) refer to malicious behaviors of system intruders that modify the contents of a memory location to disrupt the normal operation of computing systems, causing leakage of sensitive data or perturbations to ongoing processes. Unlike general-purpose systems, unmanned systems cannot deploy complete security protection schemes, due to their limitations in size, cost and *** in unmanned systems are particularly difficult to defend against. Furthermore, MCAs have diverse and unpredictable attack interfaces in unmanned systems, severely impacting digital and physical sectors. In this paper, we first generalize, model and taxonomize MCAs found in unmanned systems currently, laying the foundation for designing a portable and general defense approach. According to different attack mechanisms,we found that MCAs are mainly categorized into two types — return2libc and return2shellcode. To tackle return2libc attacks, we model the erratic operation of unmanned systems with cycles and then propose a cycle-task-oriented memory protection(CToMP) approach to protect control flows from tampering. To defend against return2shellcode attacks, we introduce a secure process stack with a randomized memory address by leveraging the memory pool to prevent Shellcode from being executed. Moreover, we discuss the mechanism by which CTo MP resists the return-oriented programming(ROP) attack, a novel variant of return2libc attacks. Finally, we implement CTo MP on CUAV V5+ with Ardupilot and Crazyflie. The evaluation and security analysis results demonstrate that the proposed approach CTo MP is resilient to various MCAs in unmanned systems with low footprints and system overhead.

关键词： unmanned system memory corruption attack memory protection system security randomized memory address

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Aero-structural design of joined-wing aircraft based on high-fidelity model

引用

Chinese Journal of Aeronautics 2024年第4期37卷 363-377页

作者： Cheng HE Fengjiang ZHAN Luchuang ma Gang CHEN Jianying ma Unmanned Air Vehicle Research Institute Nanjing University of Aeronautics and AstronauticsNanjing 210016China Key Laboratory of Advanced Technology for Small and Medium-sized UAV Ministry of Industry and Information TechnologyNanjing University of Aeronautics and AstronauticsNanjing 210016China Aerospace System Engineering Shanghai Shanghai 201108China

The joined-wing configuration reduces induced drag and structural weight by connecting the rear wing to the front *** addition,the rear wing can replace the role of the horizontal tail of a conventional aircraft,thus eliminating the aerodynamic drag and weight associated with the horizontal *** particular shape creates a highly coupled relationship between aerodynamics and structure,which must be fully considered during the overall design process to enhance aircraft *** this research,an aero-structural design model of the joined-wing aircraft is constructed based on high-fidelity computational fluid dynamics and structural finite element *** model is able to obtain accurate aerodynamic loads for the non-planar wing and to simulate the statically indeterminate structure of the closed wing *** influence of the joined-wing shape parameters on the aerodynamic and structural disciplines,as well as the influence of geometric nonlinear characteristics,deformation constraints and buckling constraints on the structural weight are all taken into *** model is applied to complete the aero-structural design optimization of a high-altitude long-endurance joined-wing aircraft,and wind tunnel tests are *** test results verify the credibility of the design model proposed and the validity of the design environment.

关键词： Joined-wing configuration Aircraft design Aero-structural design Finite element Wind tunnel test

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A laser powered EO sensor for measurement of EMP

引用

Optoelectronics Letters 2024年

作者： Zhang Jiahong ma chao Wang Zhuo Faculty of Information Engineering and Automation， Kunming University of Science and Technology

This article presents an active electro-optic (EO) modulation electromagnetic pulse (EMP) sensor powered by laser. The sensor simulation model is established， and the temporal response characteristics of the sensor are analyzed based on finite element method (FEM). The laser powered supply circuit and receiving modulation circuit are designed and implemented. A monopole antenna is designed and used to revive the EMP. By integrating the supply circuit， the receiving modulation circuit and the antenna together， the sensor are finally fabricated and encapsulated. Experimental results indicate that with the designed laser powered supply circuit， the sensor can operate continuously and stably. The measured standard 1.2/50 μs lightning electromagnetic pulses (LEMP) in the time domain agrees well with the input LEMP voltage waveform. The linear maximum and minimum measurable electric field of the sensor is 20.8 kV/m and 221 V/m respectively. All the results demonstrate that the sensor can provide an effective technical means for measurement of EMP in the time domain.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Simultaneously realizing thermal andelectromagnetic cloaking by multi-physicalnull medium

引用

Opto-Electronic Science 2024年第2期3卷 45-59页

作者： Yichao Liu Xiaomin ma Kun chao Fei Sun Zihao Chen Jinyuan Shan Hanchuan Chen Gang Zhao Shaojie Chen Key Lab of Advanced Transducers and Intelligent Control System Ministry of Education and Shanxi ProvinceCollege of Electronic Information and Optical EngineeringTaiyuan University of TechnologyTaiyuan 030024China

Simultaneously manipulating multiple physical fields plays an important role in the increasingly complex integrated systems,aerospace equipment,biochemical productions,*** on-chip systems with high integration level,the precise and efficient control of the propagation of electromagnetic waves and heat fluxes simultaneously is particularly *** this study,we propose a graphical designing method(i.e.,thermal-electromagnetic surface transformation)based on thermal-electromagnetic null medium to simultaneously control the propagation of electromagnetic waves and thermal fields according to the pre-designed paths.A thermal-electromagnetic cloak,which can create a cloaking effect on both electromagnetic waves and thermal fields simultaneously,is designed by thermal-electromagnetic surface transformation and verified by both numerical simulations and experimental *** thermal-electromagnetic surface transformation proposed in this study provides a new methodology for simultaneous controlling on electromagnetic and temperature fields,and may have significant applications in improving thermal-electromagnetic compatibility problem,protecting of thermal-electromagnetic sensitive components,and improving efficiency of energy usage for complex onchip systems.

关键词： transformation optics multi-physical cloak null medium

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Expression of hsmaD2 in Spontaneously Aborted Embryo with Chromosome Abnormality

Expression of hsMAD2 in Spontaneously Aborted Embryo with Ch...

引用

第七届生命科学联合学术大会

作者： Xin-ping Chen Wei-hua Xu Wang He Li-qiang Zhao Hu-ming Gong An-qin Chen Hai-yan Huang zhi-chao ma Sheng-miao Fu Department of Central Laboratory Hainan Province People`s Hospital Hainan Provincial Key Laboratory for Cell and Molecular Genetic Translational Medicine Department of Obstetrics Hainan Province People`s Hospital Hainan University

Explore the variation of hs maD2 protein and gene expression level in the chromosome segregation of human *** 50 spontaneously aborted embryos treated in our hospital as research objects,detect the embryo villi chromosomal numbers of the patients by *** the patients into normal group and abnormal group based on the chromosome *** the hs maD2 protein and gene expression level in villi tissues of the two patient embryos groups by western blotting and q PCR *** showed that(1)the two patient groups are comparable because no statistical difference(P>0.05)existed in their general conditions,such as gestational age,gravidity and gestational week.(2)28 embryos with chromosome abnormalities are detected in embryos of 50 patients with spontaneous abortion,accounting for 56%(28/50).8chimeras are detected in them,accounting for 16%.(3)The hs maD2 protein level in villi of abnormal group embryos is(0.88±0.20),and its gene level is(23.46±0.07).Compared with the corresponding values(0.61±0.19)and(18.35±0.10)of normal group,the statistical difference is(Pmality is closely associated with the spontaneous abortion.(2)the hs maD2 factor has a checkpoint effect on cell cycle.(3)Its retardation effect on the mitotic cell division process plays an important role in maintaining normal and steady chromosome segregation.

关键词： spontaneous abortion embryo villi chromosome abnormality hsmaD2

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Synergistic Tuning of Nickel Cobalt Selenide@Nickel Telluride Core-Shell Heteroarchitectures for Boosting Overall Urea Electrooxidation and Electrochemical Supercapattery

引用

Energy & Environmental materials 2024年第1期7卷 301-312页

作者： Diab Khalafallah Weibo Huang Mingjia zhi Zhanglian Hong State Key Laboratory of Silicon material School of Materials Science and EngineeringZhejiang University38 Zheda RoadHangzhou 310027China Mechanical Design and materials Department Faculty of Energy EngineeringAswan UniversityP.O.Box 81521AswanEgypt

Herein,we demonstrate the synthesis of bifunctional nickel cobalt selenide@nickel telluride(Ni_(x)Co_(12-x)Se@NiTe)core-shell heterostructures via an electrodeposition approach for overall urea electrolysis and *** 3D vertically orientated NiTe dendritic frameworks induce the homogeneous nucleation of 2D Ni_(x)Co_(12-x)Se nanosheet arrays along similar crystal directions and bring a strong interfacial binding between the integrated active *** particular,the optimized Ni_(6)Co_(6)Se@NiTe with an interface coupling effect works in concert to tune the intrinsic *** only needs a low overpotential of 1.33 V to yield a current density of 10 ma cm^(-2)for alkaline urea ***,the full urea catalysis driven only by Ni_(6)Co_(6)Se@NiTe achieves 10 ma cm^(-2)at a potential of 1.38 V and can approach a constant level of the current response for 40 ***,the integrated Ni_(6)Co_(6)Se@NiTe electrode delivers an enhanced specific capacity(223 ma h g^(-1)at 1 A g^(-1))with a high cycling ***,a hybrid asymmetric supercapacitor(HASC)device based on Ni_(6)Co_(6)Se@NiTe exhibits a favorable rate capability and reaches a high energy density of 67.7 Wh kg^(-1)and a power density of 724.8 W kg^(-1)with an exceptional capacity retention of 92.4%after sequential 12000 cycles at 5 A g^(-1).

关键词： bifunctional Ni_(x)Co_(12-x)Se@NiTe core-shell electrodeposition heterointerfaces supercapacitors UOR

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：