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New form of geodetic coordinate system taking two length quantity as coordinate parameters
Yimin SHI, Ziyang ZHU, Yeming FAN
《结构与土木工程前沿(英文)》 2009年 第3卷 第1期 页码 105-110 doi: 10.1007/s11709-009-0014-5
关键词: geodetic coordinate system meridian and parallel circle coordinate parameter the first fundamental form on the ellipsoidal surface latitudinal scale factor of length
Guizhong XIE,Dehai ZHANG,Jianming ZHANG,Fannian MENG,Wenliao DU,Xiaoyu WEN
《机械工程前沿(英文)》 2016年 第11卷 第4期 页码 412-422 doi: 10.1007/s11465-016-0396-8
As a widely used numerical method, boundary element method (BEM) is efficient for computer aided engineering (CAE). However, boundary integrals with near singularity need to be calculated accurately and efficiently to implement BEM for CAE analysis on thin bodies successfully. In this paper, the distance in the denominator of the fundamental solution is first designed as an equivalent form using approximate expansion and the original sinh method can be revised into a new form considering the minimum distance and the approximate expansion. Second, the acquisition of the projection point by Newton-Raphson method is introduced. We acquire the nearest point between the source point and element edge by solving a cubic equation if the location of the projection point is outside the element, where boundary integrals with near singularity appear. Finally, the subtriangles of the local coordinate space are mapped into the integration space and the sinh method is applied in the integration space. The revised sinh method can be directly performed in the integration element. A verification test of our method is proposed. Results demonstrate that our method is effective for regularizing the boundary integrals with near singularity.
关键词: computer aided engineering (CAE) boundary element method (BEM) near singularity sinh method coordinate transformation integration space
Transformation of triclosan by a novel cold-adapted laccase from
Yuanyuan Shi, Deyang Kong, Jiayang Liu, Junhe Lu, Xiaoming Yin, Quansuo Zhou
《环境科学与工程前沿(英文)》 2017年 第11卷 第3期 doi: 10.1007/s11783-017-0927-5
关键词: Laccase Botrytis cinerea Triclosan Transformation Kinetics
Research on physical shape preserving curve reconstruction
TANG Kelun, ZHANG Xiangwei, CHENG Siyuan, XIONG Hanwei, ZHANG Hong
《机械工程前沿(英文)》 2007年 第2卷 第3期 页码 305-309 doi: 10.1007/s11465-007-0054-2
关键词: information CMM Numerical simulation effective coordinate measuring
FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES
《农业科学与工程前沿(英文)》 2023年 第10卷 第1期 页码 1-3 doi: 10.15302/J-FASE-2023491
TRANSFORMATION OF FOOD SYSTEMS: HOW CAN IT BE FINANCED?
《农业科学与工程前沿(英文)》 2023年 第10卷 第1期 页码 109-123 doi: 10.15302/J-FASE-2023483
● The analysis of financing for the transformation of food systems requires first a consideration of costs.
关键词: financial markets food systems development financing consumer expenditures public budgets Sustainable Development Goals
The transformation of PAHs in the sewage sludge incineration treatment
Hui ZHANG,Le XU,Yifei ZHANG,Mengchan JIANG
《环境科学与工程前沿(英文)》 2016年 第10卷 第2期 页码 336-340 doi: 10.1007/s11783-014-0766-6
关键词: release of monomers transformation of monomers PAHs sewage sludge incineration treatment
Coordinate system applied to magnetic suspension project between Shanghai and Hangzhou
SHI Yimin, WANG Lihua, LUO Yan
《结构与土木工程前沿(英文)》 2008年 第2卷 第3期 页码 288-292 doi: 10.1007/s11709-008-0041-7
何伟,张伟东,王超贤
《中国工程科学》 2020年 第22卷 第4期 页码 10-17 doi: 10.15302/J-SSCAE-2020.04.002
“互联网 +”行动计划推出5年来,新一代信息技术创新进一步加快,经济社会数字化转型呈现诸多新特征,这就要求深入研究构建转型新体系和探索转型新路径,谋划“互联网 +”行动举措演进升级。本文遵循技术产业变革的客观规律,基于技术经济理论范式,着重分析了当前技术、应用和政策等层面数字化转型新态势和转型前沿实践探索。研究表明,当前数字化转型技术体系和技术能力日益完善,新的转型目标蓝图逐步显现,信息技术和实体经济融合进入新阶段,面临着重构数字化转型框架体系,强化转型关键要素、突破转型关键环节的重要任务。对此建议,在“互联网 +”行动后续政策设计、国家“十四五”规划制定的过程中,发掘数字化要素潜力,推动数字化转型生态建设,构建转型创新网络,升级“互联网 +”政策保障体系,推动经济社会数字化转型迈向更高发展水平。
Qianqian Guo, Irmgard Kalf, Ulli Englert
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 433-439 doi: 10.1007/s11705-018-1743-6
Diffusion reaction of the labile building block Mg(acacCN)2 (acacCN= 3-cyanoacetylacetonate) with silver salts leads to a series of solvated Mg/Ag bimetallic coordination polymers with composition [Mg(acacCN)3Ag]·solvent. Despite their common stoichiometry, the topology of these polymers depends on the solvent of crystallization. The two-dimensional coordination compound [Mg(acacCN)3Ag]·4CHCl3 in space group P
关键词: ditopic ligand substituted acetylacetone desolvation diffraction
Polymorphism and crystal transformation of penicillin sulfoxide
Dingding JING, Yongli WANG, Zhijian CHEN, Lina ZHOU, Jingkang WANG
《化学科学与工程前沿(英文)》 2011年 第5卷 第4期 页码 442-447 doi: 10.1007/s11705-011-1140-x
关键词: penicillin sulfoxide crystallization polymorphism crystal transformation Raman spectroscopy
A comprehensive simulation approach for pollutant bio-transformation in the gravity sewer
Nan Zhao, Huu Hao Ngo, Yuyou Li, Xiaochang Wang, Lei Yang, Pengkang Jin, Guangxi Sun
《环境科学与工程前沿(英文)》 2019年 第13卷 第4期 doi: 10.1007/s11783-019-1144-1
A comprehensive pollutant transformation model for sewer systems is established. The model comprises fermentation, sulfate reduction and ammonification processes. Biochemical reactions related to distinct carbon sources are depicted in the model. Pollutant transformation is attributed to different biochemical reaction processes.
关键词: Gravity sewer Modeling Pollutant transformation Biochemical reaction process
Can industrial intelligence promote industrial transformation? ––Case of mining enterprises
Anlin SHAO
《工程管理前沿(英文)》 2017年 第4卷 第3期 页码 375-378 doi: 10.15302/J-FEM-2017108
《环境科学与工程前沿(英文)》 2022年 第16卷 第8期 doi: 10.1007/s11783-022-1520-0
• Liquid digestate humification was investigated under different oxidizing environment.
关键词: Liquid digestate MnO2 Oxygen DOM transformation Humic-like acids
乔英俊,延建林,钟志华,赵俊玮
《中国工程科学》 2019年 第21卷 第3期 页码 41-46 doi: 10.15302/J-SSCAE-2019.03.001
本文全面分析了当前我国汽车产业发展面临的新形势和未来发展的新趋向,研究提出了我国汽车产业转型升级的新内涵,即:新材料、新结构、新工艺、新装备、新能源、新功能、新模式,并分析比较了我国汽车产业转型升级的四种新路径,即自主技术创新、跨界联合发展、政策资源支持、创新商业模式,最后提出了相应的发展建议。
标题 作者 时间 类型 操作
New form of geodetic coordinate system taking two length quantity as coordinate parameters
Yimin SHI, Ziyang ZHU, Yeming FAN
期刊论文
Implementation of sinh method in integration space for boundary integrals with near singularity in potential problems
Guizhong XIE,Dehai ZHANG,Jianming ZHANG,Fannian MENG,Wenliao DU,Xiaoyu WEN
期刊论文
Transformation of triclosan by a novel cold-adapted laccase from
Yuanyuan Shi, Deyang Kong, Jiayang Liu, Junhe Lu, Xiaoming Yin, Quansuo Zhou
期刊论文
Research on physical shape preserving curve reconstruction
TANG Kelun, ZHANG Xiangwei, CHENG Siyuan, XIONG Hanwei, ZHANG Hong
期刊论文
The transformation of PAHs in the sewage sludge incineration treatment
Hui ZHANG,Le XU,Yifei ZHANG,Mengchan JIANG
期刊论文
Coordinate system applied to magnetic suspension project between Shanghai and Hangzhou
SHI Yimin, WANG Lihua, LUO Yan
期刊论文
Crystal-to-crystal transformation from the triclinic to the cubic crystal system by partial desolvation
Qianqian Guo, Irmgard Kalf, Ulli Englert
期刊论文
Polymorphism and crystal transformation of penicillin sulfoxide
Dingding JING, Yongli WANG, Zhijian CHEN, Lina ZHOU, Jingkang WANG
期刊论文
A comprehensive simulation approach for pollutant bio-transformation in the gravity sewer
Nan Zhao, Huu Hao Ngo, Yuyou Li, Xiaochang Wang, Lei Yang, Pengkang Jin, Guangxi Sun
期刊论文
Can industrial intelligence promote industrial transformation? ––Case of mining enterprises
Anlin SHAO
期刊论文
digestate humification and identification of substances governing the dissolved organic matter (DOM) transformation
期刊论文