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How did Archimedes discover the law of buoyancy by experiment?

Hidetaka KUROKI

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1,   Pages 26-32 doi: 10.1007/s11465-016-0368-z

Abstract:

After Archimedes and Vitruvius era, for more than 2000 years, it has been believed that the displacedwater measurement of golden crown is impossible, and at his Eureka moment, Archimedes discovered theArchimedes measured the weight of displaced water.

After which, Archimedes continued to measure the specific gravity of various solids and fluidsIn this paper, the process to the discovery of Archimedesprinciple (Proposition 5) is presented

Keywords: Archimedesprinciple     buoyancy     specific gravity     Eureka     Vitruvius     displaced water     balance     floating body    

Function and principle innovative design of mechanical products based on TRIZ/FA

YUAN Feng, WANG Tai-yong, NIE Hui-juan

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 3,   Pages 350-355 doi: 10.1007/s11465-006-0031-1

Abstract: Function and principle innovation is the ultimate innovation of a product.To achieve Function and principle innovation design of mechanical products, a new process model of functionand principle solving is proposed, based on TRI

Keywords: TRI     principle solving     product     principle innovation     ultimate innovation    

Principle of maximum entropy for reliability analysis in the design of machine components

Yimin ZHANG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 1,   Pages 21-32 doi: 10.1007/s11465-018-0512-z

Abstract: reliability of machine components with parameters that follow an arbitrary statistical distribution using the principle

Keywords: machine components     reliability     arbitrary distribution parameter     principle of maximum entropy    

General Optimal Trajectory Planning: Enabling Autonomous Vehicles with the Principle of Least Action

Heye Huang,Yicong Liu,Jinxin Liu,Qisong Yang,Jianqiang Wang,David Abbink,Arkady Zgonnikov,

Engineering doi: 10.1016/j.eng.2023.10.001

Abstract: selecting the optimal trajectory, we develop a unified and auto-tune objective function based on the principle

Keywords: Autonomous vehicle     Trajectory planning     Multi-performance objectives     Principle of least action    

Analysis on the principle-agent model in construction project supply chain

Wu Yuhua,Zhang Qingmin

Strategic Study of CAE 2008, Volume 10, Issue 5,   Pages 75-78

Abstract:

General form of principle-agent model in integrated supply chain hasbeen discussed from principle-agent Theories.Based on the above model, construction project supply chain one-period principle-agent model and multi-periodconstruction project supply chain reputation model have been built with the characters of principle

Keywords: principle- agent model     incentive compatibility     reputation model     random walk    

Construction idea and design principle of railway tunnels

Wang Mengshu,Zhang Mei

Strategic Study of CAE 2009, Volume 11, Issue 12,   Pages 4-8

Abstract: evaluation should be estimated scientifically; the construction time, cost, contract, scheme and design principleThe construction idea and design principle of railway tunnels would provide guideline for tunnel design

Keywords: railway tunnels     construction idea     design principle    

The Principle of Interaction Between Plastic Volumetric and Shear Strains for Unsaturated Soils

Wang Jingtao

Strategic Study of CAE 2007, Volume 9, Issue 11,   Pages 11-15

Abstract:

In this paper,  the principle of interaction between plastic volumetric In addition,  it is theoretically proved by application of this principle of interaction that

Keywords: the principle of interaction between plastic volumetric and shear strains     unsaturated soil     matric suction     the principle of effective stress    

Practice and principle of traditional Chinese medicine for the prevention and treatment of COVID-19

Frontiers of Medicine doi: 10.1007/s11684-023-1040-8

Abstract: Traditional Chinese medicine (TCM) has played an important role in the prevention and treatment of coronavirus disease 2019 (COVID-19) epidemic in China. The integration of Chinese and Western medicine is an important feature of Chinese COVID-19 prevention and treatment. According to a series of evidence-based studies, TCM can reduce the infection rate of severe acute respiratory syndrome coronavirus 2 in high-risk groups. For patients with mild and moderate forms of COVID-19, TCM can relieve the related signs and symptoms, shorten the period of nucleic-acid negative conversion, and reduce conversion rate to the severe form of the disease. For COVID-19 patients with severe and critical illnesses, TCM can improve inflammatory indicators and blood oxygen saturation, shorten the hospital stay, and reduce the mortality rate. During recovery, TCM can improve patients’ symptoms, promote organ function recovery, boost the quality of patients’ life, and reduce the nucleic-acid repositive conversion rate. A series of mechanism research studies revealed that capability of TCM to treat COVID-19 through antiviral and anti-inflammatory effects, immune regulation, and protection of organ function via a multicomponent, multitarget, and multipathway approach.

Keywords: traditional Chinese medicine     COVID-19     SARS-CoV-2     clinical evidence-based study     mechanism     integrated traditional Chinese and Western medicine    

Study on the waterproof and drainage principle and technology for karst tunnels in Yichang-Wanzhou railway

Wang Xiuying,Tan Zhongsheng,Wang Mengshu,Zhang Minqing

Strategic Study of CAE 2010, Volume 12, Issue 8,   Pages 107-112

Abstract:

The establishment of tunnel waterproof and drainage principle is theBased on the water rich classification of filling cavities, the waterproof and drainage principle isFor filling cavities that must be dealt with blockage principle, full face curtain grouting and peripheryThe structure waterproof and drainage principle is blockage and drainage associating based on actualcondition, more waterproof measures are advocated in the principle.

Keywords: karst tunnel     waterproof and drainage     principle     grouting technology    

Design Method and Numerical Control Machining Principle for an Arbitrary n-polygon Noncircular Section

WU Yi-jie, LENG Hong-bin

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 71-75 doi: 10.1007/s11465-005-0005-8

Abstract: Based on the mechanistic transmission principle, the control theorems for the numerical control (NC)

Keywords: manufacture     multicoordinate     characteristic     polygonal noncircular     mechanistic transmission    

Research on the Concept and Principle of Construction Project Ecosystem

Zhou Hong,Cheng Hu,Xu Pengfu

Strategic Study of CAE 2006, Volume 8, Issue 10,   Pages 94-98

Abstract: The hierarchy, principle and composition of it were specifically analyzed by contrastive method.

Keywords: construction project     ecosystem     concept     principle    

Treating wastewater under zero waste principle using wetland mesocosms

Safaa M. Ezzat, Mohammed T. Mohammed T.

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1351-9

Abstract: Abstract • Smart wetland was designed to treat wastewater according to zero waste principle. • The systemWe expect the system to offer a smart management for every component according to zero waste principle

Keywords: Wastewater     dynamic roughing filter     Cyperus papyrus (L.)     zeolite     zero waste    

Demonstration of the Principle of Interaction between Plastic Volume Strain and Shear for Rock and Soil

Wang Jingtao

Strategic Study of CAE 2006, Volume 8, Issue 9,   Pages 24-29

Abstract:

The paper proposed a principle of interaction between plastic volume strains of and shear for rockThe main meanings of the principle were further explained.In addition, according to this principle, it was theoretically proved that the space critical state line

Keywords: principle of interaction between plastic volume strain and shear strain for rock and soil     constitutive    

The Obligation of Decryption Assistance by Internet Service Providers: Suggestions on the Amendment of Article 27 of the Network Security Law Draft (Second Draft)

Cui Congcong,Li Yuxiao and Han Song

Strategic Study of CAE 2016, Volume 18, Issue 6,   Pages 34-38 doi: 10.15302/J-SSCAE-2016.06.007

Abstract:

The obligation of decryption assistance by Internet service providers reflects the conflict between public power (the power of investigation) and the right of privacy (the right of communication privacy, private rights). Internet service providers should gather data under encryption by users on the basis of the principles of controllability and traceability, proportionality, and necessity. Providers should consider choosing their path prudently, supervised by strict procedure. Thus, the overall utility of social governance control, the tranquility of private life, and the business interests of Internet service providers can be maximized. Severe violations of private rights and disorderly situations due to governmental failure can be avoided if these suggestions are carried out.

Keywords: obligation of decryption assistance     principle of necessity     principle of proportionality     principle    

Research on the Fault Self-recovery Principle of Equipment System

Gao Jinji

Strategic Study of CAE 2005, Volume 7, Issue 5,   Pages 43-48

Abstract: prevention and self-healing as the goal, this paper focuses on the study of the fault self-recovery principle

Keywords: equipment system     principle of fault self-recovery     fault self-recovery regulation     diagnosis     active control    

Title Author Date Type Operation

How did Archimedes discover the law of buoyancy by experiment?

Hidetaka KUROKI

Journal Article

Function and principle innovative design of mechanical products based on TRIZ/FA

YUAN Feng, WANG Tai-yong, NIE Hui-juan

Journal Article

Principle of maximum entropy for reliability analysis in the design of machine components

Yimin ZHANG

Journal Article

General Optimal Trajectory Planning: Enabling Autonomous Vehicles with the Principle of Least Action

Heye Huang,Yicong Liu,Jinxin Liu,Qisong Yang,Jianqiang Wang,David Abbink,Arkady Zgonnikov,

Journal Article

Analysis on the principle-agent model in construction project supply chain

Wu Yuhua,Zhang Qingmin

Journal Article

Construction idea and design principle of railway tunnels

Wang Mengshu,Zhang Mei

Journal Article

The Principle of Interaction Between Plastic Volumetric and Shear Strains for Unsaturated Soils

Wang Jingtao

Journal Article

Practice and principle of traditional Chinese medicine for the prevention and treatment of COVID-19

Journal Article

Study on the waterproof and drainage principle and technology for karst tunnels in Yichang-Wanzhou railway

Wang Xiuying,Tan Zhongsheng,Wang Mengshu,Zhang Minqing

Journal Article

Design Method and Numerical Control Machining Principle for an Arbitrary n-polygon Noncircular Section

WU Yi-jie, LENG Hong-bin

Journal Article

Research on the Concept and Principle of Construction Project Ecosystem

Zhou Hong,Cheng Hu,Xu Pengfu

Journal Article

Treating wastewater under zero waste principle using wetland mesocosms

Safaa M. Ezzat, Mohammed T. Mohammed T.

Journal Article

Demonstration of the Principle of Interaction between Plastic Volume Strain and Shear for Rock and Soil

Wang Jingtao

Journal Article

The Obligation of Decryption Assistance by Internet Service Providers: Suggestions on the Amendment of Article 27 of the Network Security Law Draft (Second Draft)

Cui Congcong,Li Yuxiao and Han Song

Journal Article

Research on the Fault Self-recovery Principle of Equipment System

Gao Jinji

Journal Article