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Effect of cavity defect on the triaxial mechanical properties of high-performance concrete

Yanbin ZHANG; Zhe WANG; Mingyu FENG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 5, Pages 600-614 doi: 10.1007/s11709-022-0821-5

Abstract: Moreover, the cavity weakens the strength of the sample, and this study gives a modified Power-law criterion

Keywords： high-performance concrete cavity conventional triaxial compression pressurized liquid modified power-lawcriterion

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Thermal Effect Analysis of Frictional Disk in Speeding Wet Clutch

Hong Yue,Liu Jin,Wang Yungen

Strategic Study of CAE 2003, Volume 5, Issue 9, Pages 55-60

Abstract: analysis model for investigating the behavior of frictional disks in speeding wet clutch, which covers the power- law fluid model, Patir - Cheng average flow model, GT asperity contact model, oil film inertia and

Keywords： speeding wet clutch thermal analysis Reynolds equation power-law fluid model roughness

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Tuned reactive power dispatch through modified differential evolution technique

S. BISWAS (RAHA), N. CHAKRABORTY

Frontiers in Energy 2012, Volume 6, Issue 2, Pages 138-147 doi: 10.1007/s11708-012-0188-8

Abstract: This paper explores the capability of modified differential evolution (MDE) technique for solving thereactive power dispatch (RPD) problem.

Keywords： reactive power dispatch (RPD) modified differential evolution (MDE) differential evolution algorithm

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Performance analysis of combined cycle power plant

Nikhil DEV,Rajesh ATTRI

Frontiers in Energy 2015, Volume 9, Issue 4, Pages 371-386 doi: 10.1007/s11708-015-0371-9

Abstract: Combined cycle power plants (CCPPs) are in operation with diverse thermodynamic cycle configurations.of pressure ratio, turbine inlet temperature and ambient relative humidity on the first and second law

Keywords： first-law second-law exergy destruction components

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Reactive power compensation of an isolated hybrid power system with load interaction using ANFIS tuned

Nitin SAXENA,Ashwani KUMAR

Frontiers in Energy 2014, Volume 8, Issue 2, Pages 261-268 doi: 10.1007/s11708-014-0298-6

Abstract: parameters of the static synchronous compensator (STATCOM) with frequent disturbances in load model and powerinput of a wind-diesel based isolated hybrid power system (IHPS).These conventional controlling techniques use the integral square error (ISE) criterion with an openThe model is tested for a 1% step increase in reactive power load demand at = 0 s and then a suddenchange of 3% from the 1% at = 0.01 s for a 1% step increase in power input at variable wind speed

Keywords： isolated wind-diesel power system adaptive neuro fuzzy interference system (ANFIS) integral square error(ISE) criterion load interaction

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Effect of undercut on the lower bound stability of vertical rock escarpment using finite element and power

Shuvankar DAS; Debarghya CHAKRABORTY

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 8, Pages 1040-1055 doi: 10.1007/s11709-022-0841-1

Abstract: Lower bound finite element limit analysis in association with Power Cone Programming (PCP) is appliedto incorporate the failure of rock mass with the help of the Generalized Hoek-Brown yield criterion.

Keywords： undercut vertical escarpment stability Hoek-Brown yield criterion PCP

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Deformation control criterion of shield tunnel under lateral relaxation of soft soil

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5, Pages 780-795 doi: 10.1007/s11709-023-0944-3

Abstract: Subsequently, a deformation control criterion is established.

Keywords： shield tunnel lateral relaxation of soil deformation control criterion of segment structure model

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Brazilian biosafety law and the new breeding technologies

Alexandre Lima NEPOMUCENO, Renata FUGANTI-PAGLIARINI, Maria Sueli Soares FELIPE, Hugo Bruno Correa MOLINARI, Edivaldo Domingues VELINI, Eduardo Romano de Campos PINTO, Maria Lucia Zaidan DAGLI, Galdino ANDRADE FILHO, Patrícia Machado Bueno FERNANDES

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 2, Pages 204-210 doi: 10.15302/J-FASE-2019301

Abstract:

Globally, the area of land cultivated with genetically modified (GM) crops has increased a thousand-foldIn Brazil, Law No11.105 of 24 March 2005 established a framework with four main organizations responsibleHowever, most of new breeding technologies did not exist at that time and were not considered in this lawBriefly, if the product is designated to be a genetically modified, the developer will have to go through

Keywords： Brazilian legislation CTNBio genetically modified crops

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Deriving Improved Newton's Second Law and the Law of Gravity at One Time with Form of Fractal Formula

Fu Yuhua

Strategic Study of CAE 2003, Volume 5, Issue 6, Pages 55-58

Abstract:

Newton's second law and the law of gravity are summarized with experimental results.For discussing the possibility of deriving the two laws theoretically, according to the law of conservationof energy, the method of deriving improved Newton's second law and the law of gravity at one timeresults suitable for this example with the constant dimension fractal form are as follows： improved lawof gravity F = - GMm/r^1.99989 , and improved Newton's second law F = ma^1.01458

Keywords： Newton & acute s second law the law of gravity theoretical derivation

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Improving existing “reaching law” for better discrete control of seismically-excited building structures

Zhijun LI, Zichen DENG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2, Pages 111-116 doi: 10.1007/s11709-009-0022-5

Abstract: In this paper, a novel “composite reaching law” was explained in details: 1) the equation of discreteThe results of numerical example analysis of the model show that the control law can effectively reduce

Keywords： discrete-time variable structure control composite reaching law chattering effect saturated control law

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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: water measurement of golden crown is impossible, and at his Eureka moment, Archimedes discovered the lawHe did not find the law of buoyancy but rather specific gravity of things at the moment.Through these measurements, he reached the discovery of the law of buoyancy directly by experiment.

Keywords： Archimedes’ principle buoyancy specific gravity Eureka Vitruvius displaced water balance floating body

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China’s Ministry of Environmental Protection Adopted Draft Amendment to the Law on Prevention and Control

Fu Sun,Yi Liu

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0890-6

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Experimental research on ductile fracture criterion in metal forming

Song YU, Weiming FENG

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3, Pages 308-311 doi: 10.1007/s11465-011-0233-z

Abstract:

Ductile fracture criterion is key limitation parameter in material forming.providing the experimental values of the critical values at fracture, and 11 widely used ductile fracture criterion

Keywords： ductile fracture criteria metal forming process material experiment stress triaxiality

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A new fracture criterion for peridynamic and dual-horizon peridynamics

Jinhai ZHAO, Hesheng TANG, Songtao XUE

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4, Pages 629-641 doi: 10.1007/s11709-017-0447-1

Abstract: A new fracture criterion based on the crack opening displacement for peridynamic (PD) and dual-horizonThe performance of the new fracture criterion is demonstrated by four examples, i.e. a bilateral crack

Keywords： Castigliano’s theorem breaking energy critical extension XFEM COD PD-COD

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Why does environmental compliance cost more than penalty? —A legal analysis on environmental acts of enterprises in China

DONG Hongwei

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 4, Pages 434-442 doi: 10.1007/s11783-007-0069-2

Abstract: In the environmental protection field of China, due to lower law-breaking cost but higher law-abidingcost , it is a common case that the enterprise chooses to break through the law on purpose.

Keywords： law-abiding punishment environmental protection law-breaking enterprise