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Development of a new method for RMR and Q classification method to optimize support system in tunneling

Asghar RAHMATI,Lohrasb FARAMARZI,Manouchehr SANEI

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 448-455 doi: 10.1007/s11709-014-0262-x

Abstract: classification method is confirmed by Japan Highway Public Corporation that this method can figure outBased on these advantages of method, in this study, according to data of five deep and long tunnelsin Iran, two equations for estimating the value of method from and classification systems wereThese equations as a new method were able to optimize the support system for and classification systemsFrom classification and its application in these case studies, it is pointed out that the method

Keywords： JH classification     Q and RMR classification     new method    

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Seed-induced synthesis of functional MFI zeolite materials: Method development, crystallization mechanisms

Zhaoqi Ye, Hongbin Zhang, Yahong Zhang, Yi Tang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 143-158 doi: 10.1007/s11705-019-1852-x

Abstract: Among the developed synthetic approaches, the seed-induced method has gradually evolved into a facileIn this review, we briefly summarize the development of seed-induced syntheses of diverse functional

Keywords： seed-induced synthesis     MFI zeolite     synthesis mechanism     catalytic property    

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Development of a seismic design method based on response spectra for building structures

ZHOU Xiyuan, YU Ruifang

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2,   Pages 129-141 doi: 10.1007/s11709-007-0014-2

Abstract: The assumption and problem of the mode-superposition response spectrum method in seismic design codeis discussed based on a brief review of the development of the seismic design method for building structuresfor the classical damping theory is analyzed and the necessity of the research on mode-superposition methodThis includes: 1) the complex mode superposition method (in real form) for the non-classically dampedexcitations and deducing corresponding method; 4) the approach for calculation of seismic response of

Keywords： generalization     classical damping     mode-superposition response     calculation formula     damping theory    

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Development of mix design method based on statistical analysis of different factors for geopolymer concrete

Paramveer SINGH; Kanish KAPOOR

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 10,   Pages 1315-1335 doi: 10.1007/s11709-022-0853-x

Abstract: The present study proposes the mix design method of Fly Ash (FA) based geopolymer concrete using ResponseIn this method, different factors, including binder content, alkali/binder ratio, NS/NH ratio (sodiumThe 2D contour plots were used to setup the mix design method to achieve the target compressive strengthThe proposed mix design method of geopolymer concrete is divided into three categories based on curingThe observed experimental compressive strength results validate the mix design method by more than 90%

Keywords： geopolymer concrete     mix design     fly ash     response surface methodology     compressive strength     stress−strain    

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Evaluating the Level of Provincial Ecological Civilization Development in China Using the Double-BenchmarkProgressive Method

Xie Yuxi,Zhang Linbo,Luo Shanghua,Yang Jiao,Li Fen and Wang Dewang

Strategic Study of CAE 2017, Volume 19, Issue 4,   Pages 60-66 doi: 10.15302/J-SSCAE-2017.04.010

Abstract:

To assess the level of provincial ecological civilization developmentimprovement of existing data standardization methods, this study puts forward a double-benchmark progressive methodas the standardization method, and adopts the comprehensive weighted-index method to evaluate the ecologicalcivilization development level of China's 31 provinces (including provinces, autonomous regions,The results indicate that the ecological civilization development level in China is low, and that the

Keywords： ecological civilization development level     provincial ecological civilization evaluation     double-benchmarkprogressive method     single-benchmark progressive method     maximum-difference normalization method    

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Computational methods for fracture in rock: a review and recent advances

Ali JENABIDEHKORDI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 273-287 doi: 10.1007/s11709-018-0459-5

Abstract: We present an overview of the most popular state-of-the-art computational methods available for modelling fracture in rock. The summarized numerical methods can be classified into three categories: Continuum Based Methods, Discrete Crack Approaches, and Block-Based Methods. We will not only provide an extensive review of those methods which can be found elsewhere but particularly address their potential in modelling fracture in rock mechanics and geotechnical engineering. In this context, we will discuss their key applications, assumptions, and limitations. Furthermore, we also address ‘general’ difficulties that may arise for simulating fracture in rock and fractured rock. This review will conclude with some final remarks and future challenges.

Keywords： numerical modelling     method development     rock mechanics     fractured rock     rock fracturing    

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Development of an axial-type fan with an optimization method

Chong-hyun CHO, Soo-yong CHO, Chaesil KIM,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 414-422 doi: 10.1007/s11708-009-0038-5

Abstract: a flowrate of 416.6m/min is developed using an optimization technique based on the gradient methodoptimization of the fan blade, a three-dimensional axial-type fan blade is designed based on the free-vortex methodThrough these procedures, an initial axial-fan blade designed by the free vortex method is modified toThe experimental and numerical tests show that this optimization method can improve the efficiency and

Keywords： axial-type fan     gradient method     free-vortex method     design variable     total pressure     static pressure     operating    

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Development of hydrogen transport corridor along Huaihe River ecological economic zone based on SWOTmethod

Zhang Liangliang,Liu Yong and Zhou Lingyun

Strategic Study of CAE 2015, Volume 17, Issue 3,   Pages 96-99

Abstract: The research shows that Huaihe river ecological economic zone development of hydrogen highway has strengths， weaknesses， opportunities and threats by SWOT method.Finally， the research puts forward some countermeasures and suggestions the on the development of hydrogen

Keywords： hydrogen energy cars； transport corridor； hydrogen refueling stations； SWOT method    

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Theory Model and a Method for Qualitative Assessment of Sustainable Development of Regional Water Resources

Chen Shouyu

Strategic Study of CAE 2001, Volume 3, Issue 2,   Pages 33-38

Abstract:

Based on analysis of the relationship between sustainable development and bearing capacity of regionalwater resources, this paper presents a fuzzy pattern recognition model and a method for qualitativedevelopment of water resources of Hanzhong Basin.The case study proves that the model and method are reliable and that results are reasonable and practicableThey can also be applied to the assessment of the sustainable development of social economies.

Keywords： water resources     sustainable development     assessment     pattern recognition     fuzzy    

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核能发展国际高端论坛 International Summit on Nuclear Energy Development

Conference Date: 15 May 2019

Conference Place: 中国

Administered by: 中国工程院

核能发展国际高端论坛 International Summit on Nuclear Energy Development

Conference Date: 15 May 2019

Conference Place: 中国

Administered by: 中国工程院

Development of MCBurn and its application in the analysis of SCWR physical characteristics

Ganglin YU , Kan WANG ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 348-352 doi: 10.1007/s11708-009-0031-z

Abstract: The MCBurn, a coupled code system linking the Monte Carlo N-particle transport code(MCNP) and Oak Ridge isotope generation and depletion code (ORIGEN), can resolve the basic calculation problems in reactor physical design and analysis, such as criticality, power distribution, nuclide burn up, and neutron fluence. It has been verified in the pressurized water reactor (PWR) pin model, fast reactor (FR) burn up model, and boiling water reactor(BWR) assemble model with benchmarked results. In supercritical water reactor (SCWR) physical calculations, the calculation conditions such as the geometry, the neutron spectrum, and the fuel materials, etc., are more complex than those in traditional reactors, which is a great challenge to reactor physics calculation code. However, the MCBurn code is a possible solution. In this paper, several update functions of the MCBurn in new neutron cross-section lib, code interface, and neutron flux distribution were described. The application of the MCBurn in SCWR were verified on a supercritical water reactor assemble. The calculation results show that the MCBurn is accurate and adaptable in the SCWR calculation.

Keywords： Monte Carlo method     MCBurn     SCWR     neutron cross-section lib    

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Key issues in development of offshore natural gas hydrate

Shouwei ZHOU, Qingping LI, Xin LV, Qiang FU, Junlong ZHU

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 433-442 doi: 10.1007/s11708-020-0684-1

Abstract: natural gas hydrate (NGH) in China and the world, systematically reviewed and discussed the key issues in development

Keywords： natural gas hydrate exploitation offshore     diagenetic and non-diagenetic hydrate     solid-state fluidization method    

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Development of an H reduction and moderate oxidation method for 3,5-dimethylpyridine hydrogenation in

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1807-1817 doi: 10.1007/s11705-022-2243-2

Abstract: The Ru/C catalyst prepared by impregnation method was used for hydrogenation of 3,5-dimethylpyridineTherefore, an in-situ H2 reduction and moderate oxidation method was developed to increaseMoreover, the influence of oxidation temperature on the developed method was investigated.The catalysts were characterized by Brunauer–Emmett–Teller method, hydrogen temperature programmed reductionThe developed in-situ H2 reduction and moderate oxidation method eliminated the step

Keywords： Ru/C catalyst     in-situ H2 reduction and moderate oxidation     in-situ reduction     non-in-situ reduction     hydrogenation of 3     5-dimethylpyridine    

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Development of Finite Element Limit Analysis Method and Its Applications in Geotechnical Engineering

Zheng Yingren,Zhao Shangyi,Deng Chujian,Liu Weiming,Tang Xiaosong,Zhang Liming

Strategic Study of CAE 2006, Volume 8, Issue 12,   Pages 39-61

Abstract:

Finite element limit analysis method has the advantage of combining numerical analysis method withIn the early 20th century, finite element limit analysis method has been developed vigorously in domesticThese mainly include geotechnical safety factor definitions, method principles, the overall failure criterionThis method has also been used for searching sliding surface of complex landslide, retaining structure

Keywords： limit analysis method     finite element method     geotechnical engineering     slope     foundations     tunnel    

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Title Author Date Type Operation

Development of a new method for RMR and Q classification method to optimize support system in tunneling

Asghar RAHMATI,Lohrasb FARAMARZI,Manouchehr SANEI

Journal Article

Seed-induced synthesis of functional MFI zeolite materials: Method development, crystallization mechanisms

Zhaoqi Ye, Hongbin Zhang, Yahong Zhang, Yi Tang

Journal Article

Development of a seismic design method based on response spectra for building structures

ZHOU Xiyuan, YU Ruifang

Journal Article

Development of mix design method based on statistical analysis of different factors for geopolymer concrete

Paramveer SINGH; Kanish KAPOOR

Journal Article

Evaluating the Level of Provincial Ecological Civilization Development in China Using the Double-BenchmarkProgressive Method

Xie Yuxi,Zhang Linbo,Luo Shanghua,Yang Jiao,Li Fen and Wang Dewang

Journal Article

Computational methods for fracture in rock: a review and recent advances

Ali JENABIDEHKORDI

Journal Article

Development of an axial-type fan with an optimization method

Chong-hyun CHO, Soo-yong CHO, Chaesil KIM,

Journal Article

Development of hydrogen transport corridor along Huaihe River ecological economic zone based on SWOTmethod

Zhang Liangliang,Liu Yong and Zhou Lingyun

Journal Article

Theory Model and a Method for Qualitative Assessment of Sustainable Development of Regional Water Resources

Chen Shouyu

Journal Article

核能发展国际高端论坛 International Summit on Nuclear Energy Development

15 May 2019

Conference Information

核能发展国际高端论坛 International Summit on Nuclear Energy Development

15 May 2019

Conference Information

Development of MCBurn and its application in the analysis of SCWR physical characteristics

Ganglin YU , Kan WANG ,

Journal Article

Key issues in development of offshore natural gas hydrate

Shouwei ZHOU, Qingping LI, Xin LV, Qiang FU, Junlong ZHU

Journal Article

Development of an H reduction and moderate oxidation method for 3,5-dimethylpyridine hydrogenation in

Journal Article

Development of Finite Element Limit Analysis Method and Its Applications in Geotechnical Engineering

Zheng Yingren,Zhao Shangyi,Deng Chujian,Liu Weiming,Tang Xiaosong,Zhang Liming

Journal Article