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Evaluation of site response characteristic using nonlinear method (Case study: Babol, Iran)

Asskar Janalizadeh CHOOBBASTI, Sadegh REZAEI, Farzad FARROKHZAD, Pedram Haidarzaeh AZAR

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1,   Pages 69-82 doi: 10.1007/s11709-014-0231-4

Abstract: Finally the obtained response spectra from fully nonlinear method were compared with site response spectra

Keywords： fully nonlinear method     site effect     dynamic analysis     response spectra    

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A Fast Evaluation and Research Method for Exploration Potential of Oversea Basins

Hong-quan Kang,Yun-hua Deng,Huai-cun Jia,Tao Cheng,Bo Bai

Frontiers of Engineering Management 2016, Volume 3, Issue 4,   Pages 338-342 doi: 10.15302/J-FEM-2016052

Abstract: system and research method for fast evaluation and risk analysis on hydrocarbon potential.factor with comprehensive and quantitative assignment, to accelerate geological evaluation.recognition should drive the evaluation for basins with high exploration degrees.This new system and method, which is an effective system for fast basin evaluation, is suggested to beused in oversea evaluation and decision-making objectively, scientifically and efficiently.

Keywords： geological risk analysis     probability model     evaluation factors     oversea exploration     hydrocarbon exploration    

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A new performance evaluation method and its application in fin-tube surface design of small diameter

Jufang FAN, Weikun DING, Zhigeng WU, Yaling HE, Wenquan TAO, Yongxin ZHENG, Yifeng GAO, Ji SONG

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 59-68 doi: 10.1007/s11708-010-0132-8

Abstract: In this paper, a simple yet efficient performance comparison method is proposed based on the assumptionsFor this method, no correlations are required, and a small number of discrete data are sufficient.The orthogonal design method is adopted in the fin design to reduce the number of computational cases

Keywords： performance evaluation     orthogonal design     small-diameter tube    

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A novel method for reliability and risk evaluation of wind energy conversion systems considering wind

Seyed Mohsen MIRYOUSEFI AVAL,Amir AHADI,Hosein HAYATI

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 46-56 doi: 10.1007/s11708-015-0384-4

Abstract: In this paper, a novel methodology based on the Weibull-Markov method is proposed for evaluating theBased on the proposed method, the COPT of the wind farm has been developed and utilized on the IEEE RBTSMoreover, the proposed method reduces the complexity of using analytical methods and provides an accurateFurthermore, several case studies are considered to demonstrate the effectiveness of the proposed method

Keywords： doubly-fed induction generator (DFIG)     composite system adequacy assessment     wind speed correlation    

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Comprehensive evaluation of heavy metal contamination of sediment in Lake Dianchi by using modified AHPmethod and Cs dating

ZHANG Yan, GAO Xiang, ZHONG Zhenyu, PENG Buzhuo, DENG Xihai

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 3,   Pages 370-379 doi: 10.1007/s11783-008-0054-4

Abstract: Quality Comprehensive Index (EQCI) is commonly used as applied in environmental quality comprehensive evaluationto overcome the subjectivity in determining weights, the modified Analytical Hierarchy Process (AHP) methodThe modified AHP method involved the following key procedures: First, the parameters and were calculated

Keywords： Dianchi     Analytical Hierarchy     monitoring     modified Analytical     importance    

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Post-evaluation of a water pollution control plan: methodology and case study

Lin ZENG,Xin DONG,Siyu ZENG,Tianzhu ZHANG,Jing LI,Jining CHEN

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 4,   Pages 712-724 doi: 10.1007/s11783-015-0773-2

Abstract: This paper proposes a three-step, post-evaluation methodology to analyze the implementation result ofFirst, a multi-attribute evaluation method based on an index system is established to score the enforcementTherefore, this case study demonstrates the feasibility and flexibility of the proposed post-evaluation

Keywords： river basin     water pollution control plan     post plan evaluation     multi-attribute comprehensive evaluation     interpretive structural model     combined qualitative/quantitative method    

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Evaluation method of multiaxial low cycle fatigue life for cubic single crystal material

CHEN Jiping, DING Zhiping

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 278-282 doi: 10.1007/s11465-007-0048-0

Abstract: The coupling effect of normal stress and shear stress on orthotropic materials happens when applied loading deflects from the directions of the principal axes of the material coordinate system. By taking account of the coupling effects, formulas of equivalent stress and strain for cubic single crystal materials are cited. Using the equivalent strain and equivalent stress for such material and a variable k, which is introduced to express the effect of asymmetrical cyclic loading on fatigue life, a low cycle fatigue (LCF) life prediction model for such material in multiaxial stress starts is proposed. On the basis of the yield criterion and constitutive model of cubic single crystal materials, a subroutine to calculate the thermo elastic-plastic stress-strain of the material on an ANSYS platform was developed. The cyclic stress-strain of DD3 notched specimens under asymmetrical loading at 680vH was analyzed. Low cycle fatigue test data of the single crystal nickel-based superalloy are used to fit the different parameters of the power law with multiple linear regression analysis. The equivalent stress and strain for a cubic single crystal material as failure parameters have the largest correlation coefficient. A power law exists between k and the failure cycle. The model was validated with LCF test data of CMSX-2 and DD3 single crystal nickel-based superalloys. All the test data fall into the factor of 2.5 for CMSX-2 hollow cylinder specimens and 2.0 scatter band for DD3 notched specimens, respectively.

Keywords： orthotropic     regression analysis     crystal material     multiaxial     prediction    

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Evaluation of the power consumption of a high-speed parallel robot

Gang HAN, Fugui XIE, Xin-Jun LIU

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2,   Pages 167-178 doi: 10.1007/s11465-017-0456-8

Abstract: With this dynamic model, a new evaluation method is proposed to measure the power consumption of theThe power vector is extended in this method and used to represent the collinear velocity and acceleration

Keywords： high-speed parallel robot     dynamic model     power consumption     evaluation method     power vector    

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EXTRACTION AND EVALUATION OF EDIBLE OIL FROM SCHIZOCHYTRIUM SP. USING AN AQUEOUS ENZYMATIC METHOD

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 623-634 doi: 10.15302/J-FASE -2021400

Abstract:

Schizochytrium sp., a marine microalga, is a potential source of edible oil due to its short growth cycle and rapid lipid accumulation, especially of docosahexaenoic acid. An approach to isolate edible microalgal oil from Schizochytrium sp. using aqueous enzymatic extraction (AEE) was developed. Parameters were optimized by single-factor experiments followed by Box-Behnken design. Proteases were effective in extracting oil. The maximum free oil recovery (49.7%±0.58%) and total oil recovery (68.1%±0.94%) were obtained under optimum conditions of liquid-to-solid ratio of 4.8:1, a 2.5% enzyme concentration of papain and an extraction time of 2.2 h. There was a significant difference (P<0.05) in polyunsaturated fatty acid composition between microalgal oil obtained by AEE and by Soxhlet extraction, with the former having superior physiochemical properties and higher concentrations of bioactive components including total phenolic compounds and total tocopherols. These findings indicate a potential application of AEE for extraction of oil from Schizochytrium sp.

 

Keywords： antioxidant activity / aqueous enzymatic extraction / edible microalgal oil / fatty acid composition / physicochemical properties    

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Fuzzy Comprehensive Performance Evaluation Method for Chained Operation Based on Balanced Score Card

Cao Jie,Cao Guo,He Jianmin

Strategic Study of CAE 2008, Volume 10, Issue 4,   Pages 90-96

Abstract: text-align: justify;">From the views of balanced score card,a series of indexes and a fuzzy comprehensive evaluationmodel for the performance evaluation of chained operation enterprise based on its finance,customer,This novel performance evaluation model overcomes the shortcoming of traditional method and can makebenefit for comprehensive evaluation from development aspect.

Keywords： chained operation     balanced score card     performance evaluation     fuzzy comprehensive evaluation    

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Performance evaluation of low-rise infilled reinforced concrete frames designed by considering local

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 686-703 doi: 10.1007/s11709-023-0937-2

Abstract: The proposed method can eliminate the column shear failure from the building.

Keywords： reinforced concrete frames     infill wall     seismic design method     shear failure     wall-frame interaction    

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The defect-length effect in corrosion detection with magnetic method for bridge cables

Qiwei ZHANG, Rongya XIN

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 662-671 doi: 10.1007/s11709-018-0512-4

Abstract:

Quantitative evaluation of the steel corrosion in cables is significant for the safe operation ofmodel to quantify the influence of defect length is proposed based on the equivalent magnetic circuit method

Keywords： bridge cable     corrosion detection     defect length     MF examination     quantitative evaluation    

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Performance evaluation of coordinated management of construction projects

Guo Feng,Liu Hui

Strategic Study of CAE 2011, Volume 13, Issue 8,   Pages 97-102

Abstract:

The combination of both function coefficient method and logframe approachThe evaluation index system of coordinated management of construction projects was constructed from fouraspects, including performance evaluation of target coordinated management, organization coordinatedIn the end, the method to construct index system and calculate the coefficient was proved by an empiricalThis method can judge the function of coordinated management of construction projects efficiently.

Keywords： coordinated management of construction projects     performance evaluation index system     function coefficientmethod    

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Evaluation of groundwater quality in the Xinjiang Plain Area

Jinlong ZHOU, Xinguang DONG, Yiping WANG, Guomin LI, Xiaojing GUO,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 2,   Pages 183-186 doi: 10.1007/s11783-010-0021-8

Abstract: The samples were collected in basic evaluation units which are determined on the basis of watersheds.The quality of the groundwater in each evaluation unit was classified by using the One Veto Method (aCategory IV; the groundwater in the Aibi Lake System belongs to Category II, and the groundwater of other evaluationThe results can be useful for the evaluation and management of water resources in the Xinjiang Plain

Keywords： groundwater quality     evaluation     one veto method     total dissolved solids (TDS)     pH     total hardness    

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Evaluation method of dam behavior during construction and reservoir filling and application to real dams

Yuji KOHGO, Akira TAKAHASHI, Tomokazu SUZUKI,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1,   Pages 92-101 doi: 10.1007/s11709-010-0009-2

Abstract: paper we analyzed a real fill-type dam, named the Minami-Aiki Dam, to verify a numerical consolidation methodThis method is valid for estimating behavior of fill-type dams during construction and impounding.

Keywords： fill dam     consolidation analysis     unsaturated geo-materials     impounding     construction    

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Title Author Date Type Operation

Evaluation of site response characteristic using nonlinear method (Case study: Babol, Iran)

Asskar Janalizadeh CHOOBBASTI, Sadegh REZAEI, Farzad FARROKHZAD, Pedram Haidarzaeh AZAR

Journal Article

A Fast Evaluation and Research Method for Exploration Potential of Oversea Basins

Hong-quan Kang,Yun-hua Deng,Huai-cun Jia,Tao Cheng,Bo Bai

Journal Article

A new performance evaluation method and its application in fin-tube surface design of small diameter

Jufang FAN, Weikun DING, Zhigeng WU, Yaling HE, Wenquan TAO, Yongxin ZHENG, Yifeng GAO, Ji SONG

Journal Article

A novel method for reliability and risk evaluation of wind energy conversion systems considering wind

Seyed Mohsen MIRYOUSEFI AVAL,Amir AHADI,Hosein HAYATI

Journal Article

Comprehensive evaluation of heavy metal contamination of sediment in Lake Dianchi by using modified AHPmethod and Cs dating

ZHANG Yan, GAO Xiang, ZHONG Zhenyu, PENG Buzhuo, DENG Xihai

Journal Article

Post-evaluation of a water pollution control plan: methodology and case study

Lin ZENG,Xin DONG,Siyu ZENG,Tianzhu ZHANG,Jing LI,Jining CHEN

Journal Article

Evaluation method of multiaxial low cycle fatigue life for cubic single crystal material

CHEN Jiping, DING Zhiping

Journal Article

Evaluation of the power consumption of a high-speed parallel robot

Gang HAN, Fugui XIE, Xin-Jun LIU

Journal Article

EXTRACTION AND EVALUATION OF EDIBLE OIL FROM SCHIZOCHYTRIUM SP. USING AN AQUEOUS ENZYMATIC METHOD

Journal Article

Fuzzy Comprehensive Performance Evaluation Method for Chained Operation Based on Balanced Score Card

Cao Jie,Cao Guo,He Jianmin

Journal Article

Performance evaluation of low-rise infilled reinforced concrete frames designed by considering local

Journal Article

The defect-length effect in corrosion detection with magnetic method for bridge cables

Qiwei ZHANG, Rongya XIN

Journal Article

Performance evaluation of coordinated management of construction projects

Guo Feng,Liu Hui

Journal Article

Evaluation of groundwater quality in the Xinjiang Plain Area

Jinlong ZHOU, Xinguang DONG, Yiping WANG, Guomin LI, Xiaojing GUO,

Journal Article

Evaluation method of dam behavior during construction and reservoir filling and application to real dams

Yuji KOHGO, Akira TAKAHASHI, Tomokazu SUZUKI,

Journal Article