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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: Exergetic and energetic analysis of each component of the seven configurations is conducted with theeffects of pressure ratio, turbine inlet temperature and ambient relative humidity on the first and secondlaw is studied.The thermodynamics analysis indicates that the exergy destruction in various components of the combined

Keywords： first-law second-law exergy destruction components

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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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Exergy losses in premixed flames of dimethyl ether and hydrogen blends

Tongbin ZHAO, Jiabo ZHANG, Dehao JU, Zhen HUANG, Dong HAN

Frontiers in Energy 2019, Volume 13, Issue 4, Pages 658-666 doi: 10.1007/s11708-019-0645-8

Abstract: A second-law thermodynamic analysis was conducted for stoichiometric premixed dimethyl ether (DME)/hydrogen

Keywords： second law analysis flame dimethyl ether (DME) hydrogen binary fuels

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—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

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Emissions analysis on second generation biodiesel

Yuvarajan Devarajan,Ravi kumar Jayabal,Devanathan Ragupathy,Harish Venu

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 1, doi: 10.1007/s11783-017-0891-0

Abstract: CNSBD can be used as a fuel without any modification in existing CI engine. Pentanol reduces HC, CO, NO and Smoke emissions significantly. New and next generation alternative fuel is employed. Blending of CNSBD with pentanol resulted in no separation of phases and found miscible. This work investigates the effect of adding pentanol with biodiesel derived from cashew nut shell on its emissions characteristics is conducted in stationery diesel engine. The main purpose of this work is intended to reduce the emissions by fuelling biodiesel derived from cashew nut shell and the pentanol blends. Cashew nut shell biodiesel is prepared by transesterification process. Oxygenated additive used in the work is Pentanol. The experiment is conducted using four test fuels such as, biodiesel derived from cashew nut shell (CNSBD), a fuel containing 90% cashew nut shell biodiesel and 10% pentanol (CNSBD90P10), a fuel containing 80% cashew nut shell biodiesel and 20% pentanol (CNSBD80P20) and neat diesel. Experimental work concluded that by adding 10% of pentanol to cashew nut shell biodiesel 10.1%, 2.6%, 5.1% and 2.1%reduction in CO, HC, NO and Smoke emissions were observed respectively. Further by fueling with these blends, no modifications in engines were required.

Keywords： Pentanol Biodiesel Emissions

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First law-based thermodynamic analysis on Kalina cycle

ZHANG Ying, HE Maogang, JIA Zhen, LIU Xun

Frontiers in Energy 2008, Volume 2, Issue 2, Pages 145-151 doi: 10.1007/s11708-008-0021-6

Abstract: Based on the first law of thermodynamics, and adopting the Peng-Robinson equation (P-R equation) as thebasic equation for the properties of ammonia-water mixtures, a thermodynamic analysis on a single-stage

Keywords： ammonia-water P-R single-stage distillation Peng-Robinson pressure

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Controllability analysis of second-ordermulti-agent systemswith directed andweighted interconnection

Di GUO,Rong-hao ZHENG,Zhi-yun LIN,Gang-feng YAN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 10, Pages 838-847 doi: 10.1631/FITEE.1500069

Abstract: Each agent is assumed to be governed by a second-order consensus control law corresponding to a directedThe second is concerned with a more general graph that can be reduced to a directed tree by contractingFinally, several illustrative examples are provided to demonstrate the theoretical analysis results.

Keywords： Multi-agent systems Controllability Directed tree

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UNREDUCED MEGAGAMETOPHYTE FORMATION VIA SECOND DIVISION RESTITUTION CONTRIBUTES TO TETRAPLOID PRODUCTION

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 2,

Abstract: heterozygosity rates in 16 SNP loci and all 2n megagametophytes were less than 50%, indicating that second

Keywords： Citrus / 2n gamete / interploidy hybridization / pericentromeric SNP marker / second division restitution

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High-order phase-field model with the local and second-order max-entropy approximants

Fatemeh AMIRI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2, Pages 406-416 doi: 10.1007/s11709-018-0475-5

Abstract: fracture surface energy functional based on phase-field method with smooth local maximum entropy (LME) and second-orderfourth-order phase-field equations without splitting the fourth-order differential equation into two second-order

Keywords： second-order maximum entropy local maximum entropy second- and fourth-order phase-field models B-spline

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Analysis of nonlinear channel friction inverse problem

CHENG Weiping, LIU Guohua

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2, Pages 205-210 doi: 10.1007/s11709-007-0024-0

Abstract: analyses demonstrate that the convergence rate of the general Newton optimization algorithm is in the second-order

Keywords： singular SVD second-order covariance Theoretical

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Assistance by Internet Service Providers: Suggestions on the Amendment of Article 27 of the Network Security LawDraft (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 of controllability and traceability remedy measures

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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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Cross-layer efforts for energy-efficient computing: towards peta operations per second perwatt Perspectives

Xiaobo Sharon HU, Michael NIEMIER

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 10, Pages 1209-1223 doi: 10.1631/FITEE.1800466

Abstract:

AsMoore’s law based device scaling and accompanying performance scaling trends are slowing down, there

Keywords： Moore’s law Energy-efficient computing Neural network accelerators Beyond-CMOS devices

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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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Nonlinear analysis of pre-tensioned glass wall facade by stability function with initial imperfection

Siu-Lai CHAN, Yaopeng LIU, Andy LEE,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3, Pages 376-382 doi: 10.1007/s11709-010-0086-2

Abstract: of glass panes in this type of system occurs occasionally, likely to be due to error in design and analysisThis paper presents a rigorous analysis and design of this type of structural systems used in a projectfunction with initial curvature is used in place of the cubic function, which is only accurate for linear analysisThe considerations and analysis techniques are believed to be of value to engineers involved in the design

Keywords： tension system glass wall nonlinear analysis pre-tensioning second-order analysis