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Improved R /S Method and Analysis and Forecast to China Fire Data

Fu Yuhua,Fu Anjie

Strategic Study of CAE 2004, Volume 6, Issue 5,   Pages 39-44

Abstract:

This paper discusses some improvements for the R/S analysis method (rescaled range analysis) in engineeringFor the analysis of total fire number in China, two new data grouping methods for calculating the Hurstdifference of Hurst exponent AH is introduced to judge the possibility whether or not the next year'sFor the R/S analysis of the calculated Hurst exponents, a new group of Hurst exponent H1,iAccording to the fire numbers from 1950〜1999, the fire number of year 2000 is forecasted with R/S method

Keywords： R/S analysis     rescaled range analysis     high order Hurst exponent     total fire number of whole country     forecast    

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Evaluating R&D efficiency of China’s listed lithium battery enterprises

Frontiers of Engineering Management   Pages 473-485 doi: 10.1007/s42524-022-0213-5

Abstract: Promoting the growth of the lithium battery sector has been a critical aspect of China’s energy policyHowever, despite significant support on research and development (R&D) investments that have resultedSpecifically, data envelopment analysis (DEA) was used as the primary approach based on evidence fromHowever, during this period, a significant increase in R&D expenditure was witnessed.leading players seemed superior because their average efficiency scores were higher than the industry’s

Keywords： Data Envelopment Analysis     R&D investment efficiency     China’s listed lithium battery enterprises     technical    

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Improvement potential of today’s WEEE recycling performance: The case of LCD TVs in Belgium

Paul Vanegas, Jef R. Peeters, Dirk Cattrysse, Wim Dewulf, Joost R. Duflou

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-1000-0

Abstract: Secondly, a material flow analysis is conducted by evaluating the separation performance of a recyclingThe analysis shows that while recycling performance for ferrous metals and aluminium are relatively high

Keywords： Recycling     Waste of electrical and electronic equipment (WEEE)     Material flow analysis     LCD TVs     Precious    

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Numerical analysis of strongly nonlinear oscillation systems using He’s max-min method

BARARI, R. AZAMI, A. G. DAVODI

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 435-441 doi: 10.1007/s11465-011-0243-x

Abstract:

Nonlinear functions are crucial points and terms in engineering problems. Actual and physical problems can be solved by solving and processing such functions. Thus, most scientists and engineers focus on solving these equations. This paper presents a novel method called the max-min method for presenting an accurate approximate analytical solution to strong nonlinear oscillators. It can solve many linear or nonlinear differential equations without the tangible restriction of sensitivity to the degree of the nonlinear term. It is also quite convenient due to the reduction in the size of calculations. The algorithm suggests a promising approach and is systematically illustrated step by step.

Keywords： min-max method     nonlinear oscillation     duffing equation     mathematical pendulum     He’s energy balance method    

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Techno-economic evaluation of wind energy in southwest Nigeria

Muyiwa S. ADARAMOLA, Olarenwaju M. OYEWOLA, Olayinka S. OHUNAKIN, Rufus R. DINRIFO

Frontiers in Energy 2012, Volume 6, Issue 4,   Pages 366-378 doi: 10.1007/s11708-012-0205-y

Abstract: In this study, an analysis of the wind energy potential in the southwest geo-political region of Nigeria

Keywords： mean wind speed     Weibull distributions     wind turbine     techno-economic analysis     southwest geopolitical region    

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Energy absorption potential of concrete floors containing secondary (shrinkage and temperature) reinforcements

S. SIVAKUMARAN,R. M. KOROL,Xiao FAN

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 3,   Pages 282-291 doi: 10.1007/s11709-014-0269-3

Abstract: Sieve analysis results of the crushed specimens were used to derive a “work index” value that relates

Keywords： low-density concrete     shrinkage and temperature reinforcements     energy absorption     penetration tests     sieve analysis    

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Response in piled raft foundation of tall chimneys under along-wind load incorporating flexibility of soil

R. JAYALEKSHMI,S.V. JISHA,R. SHIVASHANKAR

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 3,   Pages 307-322 doi: 10.1007/s11709-015-0288-8

Abstract: The present paper deals with the numerical analysis of tall reinforced concrete chimneys with piled raftThe analysis was carried out using finite element method on the basis of direct method of soil-structurechimneys were assumed to be located in terrain category 2 and subjected to a maximum wind speed of 50 m/sThe base moments of chimney evaluated from the SSI analysis were compared with those obtained as perand compared with those obtained from conventional analysis as per IS:11089-1984, assuming rigidity

Keywords： finite element method     piled raft     tall chimney     soil-structure interaction     along-wind load    

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Growth suppression of colorectal cancer expressing S492R EGFR by monoclonal antibody CH12

Qiongna Dong, Bizhi Shi, Min Zhou, Huiping Gao, Xiaoying Luo, Zonghai Li, Hua Jiang

Frontiers of Medicine 2019, Volume 13, Issue 1,   Pages 83-93 doi: 10.1007/s11684-019-0682-z

Abstract: cetuximab, also named C225, an anti-EGFR monoclonal antibody, for CRC have been demonstrated to cause an S492RHowever, little is known about the biological function of S492R EGFR.Our study indicated that EGFR and S492R EGFR accelerate the growth of CRC cells in vitro and S492RThus, mAb CH12 may be a promising therapeutic agent in treating patients with CRC bearing an S492R EGFR

Keywords： S492R EGFR ectodomain mutation     colorectal cancer     mAb CH12     immunnotherapy    

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Estimation of relations among hysteretic response measures and design parameters for RC rectangular shear walls

R. BANAN, Mo. R. BANAN, S. FARHADI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 3-15 doi: 10.1007/s11709-017-0418-6

Abstract: Seismic design of RC structures requires estimation of structural member behavioral measures as functions of design parameters. In this study, the relations among cyclic behavioral measures and design parameters have been investigated for rectangular RC shear walls using numerical simulations calibrated based on the published laboratory tests. The OpenSEES numerical simulations modeling of plastic hinge hysteretic behavior of RC shear walls and estimation of empirical relations among wall hysteretic indices and design parameters are presented. The principal design parameters considered were wall dimensions, axial force, reinforcement ratios, and end-element design parameters. The estimated hysteretic response measures are wall effective stiffness, yield and ultimate curvatures, plastic moment capacity, yield and ultimate displacements, flexural shear capacity, and dissipated energy. Using results of numerous analyses, the empirical relations among wall cyclic behavioral measures and design parameters are developed and their accuracy is investigated.

Keywords： RC wall hysteretic measures     RC wall design parameters     empirical relations     numerical simulations     RC rectangular wall plastic hinge    

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Design concepts of an aircraft wing: composite and morphing airfoil with auxetic structures

P R BUDARAPU,Sudhir Sastry Y B,R NATARAJAN

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 394-408 doi: 10.1007/s11709-016-0352-z

Abstract: paper is categorized into two parts. (1) A frame work to design the aircraft wing structure and (2) analysisGlass fiber reinforced plastic material is used in the numerical analysis.components and (ii) unique deformation characteristics, which produce a theoretical in-plane Poisson’s

Keywords： wing design     aerodynamic loads     morphing airfoil     auxetic structures     negative Poisson’s ratio    

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Detection of void and metallic inclusion in 2D piezoelectric cantilever beam using impedance measurements

S. SAMANTA, S. S. NANTHAKUMAR, R. K. ANNABATTULA, X. ZHUANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 542-556 doi: 10.1007/s11709-018-0496-0

Abstract: The aim of current work is to improve the existing inverse methodology of void-detection based on a target impedance curve, leading to quick-prediction of the parameters of single circular void. In this work, mode-shape dependent shifting phenomenon of peaks of impedance curve with change in void location has been analyzed. A number of initial guesses followed by an iterative optimization algorithm based on univariate method has been used to solve the problem. In each iteration starting from each initial guess, the difference between the computationally obtained impedance curve and the target impedance curve has been reduced. This methodology has been extended to detect single circular metallic inclusion in 2D piezoelectric cantilever beam. A good accuracy level was observed for detection of flaw radius and flaw-location along beam-length, but not the precise location along beam-width.

Keywords： piezoelectricity     impedance curve     mode shapes     inverse problem     flaw detection     curve shifting    

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Exergy analysis of R1234ze(Z) as high temperature heat pump working fluid with multi-stage compression

WANG, R.Z. WANG

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 493-502 doi: 10.1007/s11708-017-0510-6

Abstract: In this paper, the simulation approach and exergy analysis of multi-stage compression high temperatureheat pump (HTHP) systems with R1234ze(Z) working fluid are conducted.

Keywords： multi-stage compression     high temperature heat pump     heat recovery     exergy destruction     R1234ze(Z) working    

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Correlations for estimating solar radiation using sunshine hours and temperature measurement in Osogbo, Osun State, Nigeria

S. OHUNAKIN, M. S. ADARAMOLA, O. M. OYEWOLA, R. O. FAGBENLE

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 214-222 doi: 10.1007/s11708-013-0241-2

Abstract: In this study, the global solar radiation on horizontal surface in Osogbo, Osun state, Nigeria was analyzed using 11-year data (1997–2007). Correlations using linear and quadratic expressions were developed to relate the global solar radiation on horizontal surface based on relative sunshine hours and temperature measurements for evaluating the monthly average daily global solar radiation. The calculated monthly clearness index values indicate that the prevailing weather condition in Osogbo is heavily overcast. All the developed quadratic correlations gave better correlation coefficients (0.834, 0.872 and 0.823 respectively) than the linear models. However, the Hargreaves and Samani related based quadratic model gave the best among the three developed quadratic expressions and is therefore suggested for estimating the monthly global radiation in this site and its surroundings.

Keywords： global solar radiation     Hargreaves model     sunshine hour     ambient temperatures     Osogbo    

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Kinematical synthesis of an inversion of the double linked fourbar for morphing wing applications

AGUIRREBEITIA, R. AVILéS, I. FERNáNDEZ, M. ABASOLO

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1,   Pages 17-32 doi: 10.1007/s11465-013-0364-5

Abstract:

This paper presents the kinematical features of an inversion of the double linked fourbar for morphing wing purposes. The structure of the mechanism is obtained using structural synthesis concepts, from an initial conceptual schematic. Then, kinematic characteristics as instant center of rotation, lock positions, dead point positions and uncertainty positions are derived for this mechanism in order to face the last step, the dimensional synthesis; in this sense, two kinds of dimensional synthesis are arranged to guide the wing along two positions, and to fulfill with the second one some aerodynamic and minimum actuation energy related issues.

Keywords： morphing wing     structural synthesis     dimensional synthesis     geometrical kinematics    

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Design of efficient Pt-based electrocatalysts through characterization by X-ray absorption spectroscopy

Nebojsa S. MARINKOVIC, Kotaro SASAKI, Radoslav R. ADZIC

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 236-244 doi: 10.1007/s11708-017-0487-1

Abstract: The analysis of the internal structure of nanoparticles reveals interatomic distances and coordinationstructures designed in the laboratory and the approach to model efficient catalysts through systematic analysis

Keywords： X-ray absorption spectroscopy     EXAFS     XANES     nanocatalysts     core shell    

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Title Author Date Type Operation

Improved R /S Method and Analysis and Forecast to China Fire Data

Fu Yuhua,Fu Anjie

Journal Article

Evaluating R&D efficiency of China’s listed lithium battery enterprises

Journal Article

Improvement potential of today’s WEEE recycling performance: The case of LCD TVs in Belgium

Paul Vanegas, Jef R. Peeters, Dirk Cattrysse, Wim Dewulf, Joost R. Duflou

Journal Article

Numerical analysis of strongly nonlinear oscillation systems using He’s max-min method

BARARI, R. AZAMI, A. G. DAVODI

Journal Article

Techno-economic evaluation of wind energy in southwest Nigeria

Muyiwa S. ADARAMOLA, Olarenwaju M. OYEWOLA, Olayinka S. OHUNAKIN, Rufus R. DINRIFO

Journal Article

Energy absorption potential of concrete floors containing secondary (shrinkage and temperature) reinforcements

S. SIVAKUMARAN,R. M. KOROL,Xiao FAN

Journal Article

Response in piled raft foundation of tall chimneys under along-wind load incorporating flexibility of soil

R. JAYALEKSHMI,S.V. JISHA,R. SHIVASHANKAR

Journal Article

Growth suppression of colorectal cancer expressing S492R EGFR by monoclonal antibody CH12

Qiongna Dong, Bizhi Shi, Min Zhou, Huiping Gao, Xiaoying Luo, Zonghai Li, Hua Jiang

Journal Article

Estimation of relations among hysteretic response measures and design parameters for RC rectangular shear walls

R. BANAN, Mo. R. BANAN, S. FARHADI

Journal Article

Design concepts of an aircraft wing: composite and morphing airfoil with auxetic structures

P R BUDARAPU,Sudhir Sastry Y B,R NATARAJAN

Journal Article

Detection of void and metallic inclusion in 2D piezoelectric cantilever beam using impedance measurements

S. SAMANTA, S. S. NANTHAKUMAR, R. K. ANNABATTULA, X. ZHUANG

Journal Article

Exergy analysis of R1234ze(Z) as high temperature heat pump working fluid with multi-stage compression

WANG, R.Z. WANG

Journal Article

Correlations for estimating solar radiation using sunshine hours and temperature measurement in Osogbo, Osun State, Nigeria

S. OHUNAKIN, M. S. ADARAMOLA, O. M. OYEWOLA, R. O. FAGBENLE

Journal Article

Kinematical synthesis of an inversion of the double linked fourbar for morphing wing applications

AGUIRREBEITIA, R. AVILéS, I. FERNáNDEZ, M. ABASOLO

Journal Article

Design of efficient Pt-based electrocatalysts through characterization by X-ray absorption spectroscopy

Nebojsa S. MARINKOVIC, Kotaro SASAKI, Radoslav R. ADZIC

Journal Article