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A constrained neural network model for soil liquefaction assessment with global applicability

Yifan ZHANG, Rui WANG, Jian-Min ZHANG, Jianhong ZHANG

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 5,   Pages 1066-1082 doi: 10.1007/s11709-020-0651-2

Abstract: A constrained back propagation neural network (C-BPNN) model for standard penetration test based soil liquefaction assessment with global applicability is developed, incorporating existing knowledge for liquefaction triggering mechanism and empirical relationships. For its development and validation, a comprehensive liquefaction data set is compiled, covering more than 600 liquefaction sites from 36 earthquakes in 10 countries over 50 years with 13 complete information entries. The C-BPNN model design procedure for liquefaction assessment is established by considering appropriate constraints, input data selection, and computation and calibration procedures. Existing empirical relationships for overburden correction and fines content adjustment are shown to be able to improve the prediction success rate of the neural network model, and are thus adopted as constraints for the C-BPNN model. The effectiveness of the C-BPNN method is validated using the liquefaction data set and compared with that of several liquefaction assessment methods currently adopted in engineering practice. The C-BPNN liquefaction model is shown to have improved prediction accuracy and high global adaptability.

Keywords： soil liquefaction assessment     case history dataset     constrained neural network model     existing knowledge    

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Advanced finite element analysis of a complex deep excavation case history in Shanghai

Yuepeng DONG, Harvey BURD, Guy HOULSBY, Yongmao HOU

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1,   Pages 93-100 doi: 10.1007/s11709-014-0232-3

Abstract: The construction of the North Square Shopping Center of the Shanghai South Railway Station is a large scale complex top-down deep excavation project. The excavation is adjacent to several current and newly planned Metro lines, and influenced by a neighboring Exchange Station excavation. The highly irregular geometry of this excavation greatly increases the complexity in 3D Finite Element modeling. The advanced numerical modeling described in this paper includes detailed structural and geotechnical behavior. Important features are considered in the analysis, e.g., 1) the small-strain stiffness of the soil, 2) the construction joints in the diaphragm wall, 3) the shrinkage in the concrete floor slabs and beams, 4) the complex construction sequences, and 5) the shape effect of the deep excavation. The numerical results agree well with the field data, and some valuable conclusions are generated.

Keywords： advanced finite element analysis     deep excavations     case history     small-strain stiffness    

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A simple method for evaluating liquefaction potential from shear wave velocity

Lianyang ZHANG,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 2,   Pages 178-195 doi: 10.1007/s11709-010-0023-4

Abstract: boundary separating the liquefaction and non-liquefaction cases through the analysis of liquefaction casesoils from shear wave velocity by using the optimum seeking method to directly analyze the liquefaction historyA case study is presented to illustrate the application of the developed simple method and further confirms

Keywords： liquefaction     earthquake     simple method     shear wave velocity     case history introduction    

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Introduction to the special issue on the 2015 Workshop on History of Mechanism and Machine Science

Marco CECCARELLI

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1,   Pages 1-2 doi: 10.1007/s11465-016-0379-9

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Natural history of HIV infection in former plasma donors in rural China

Min ZHANG, Hong SHANG, Zhe WANG, Wei-Guo CUI, Qing-Hai HU

Frontiers of Medicine 2010, Volume 4, Issue 3,   Pages 346-350 doi: 10.1007/s11684-010-0102-x

Abstract: Few studies about the natural history of HIV infection in these patients were performed.This is the first large-scale retrospective study on the natural history of HIV infection in FPDs in

Keywords： human immunodeficiency virus (HIV)     former plasma donor     natural history     China    

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The biopharmaceutical industry in China: history and future perspectives

Kai Gao, Junzhi Wang

Frontiers of Medicine 2012, Volume 6, Issue 2,   Pages 101-111 doi: 10.1007/s11684-012-0191-9

Abstract:

Biopharmaceuticals reflect the rapid progress achieved in modern biomedical research. This area has also become one of the main criteria for assessing the development level of biotechnology for a particular country. Although it has been only three decades since the first biopharmaceutical, recombinant human insulin, was licensed by the US Food and Drug Administration, the biopharmaceutical industry has become the fastest growing, most dynamic and technology-intensive sector in the biomedical field. Since the licensing of recombinant human interferon α1b in 1989, the biopharmaceutical industry in China has gone through initial developments and gradually entered a period of rapid growth. This paper provides an overview of the status and development trends of biopharmaceuticals in China, and compares them with those observed in developed countries.

Keywords： biopharmaceuticals     antibodies     market trends     diseases     China     national regulatory agency    

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Fuzzy cascade control based on control’s history for superheated temperature

WANG Guangjun, LI Gang, SHEN Shuguang

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 285-289 doi: 10.1007/s11708-007-0040-8

Abstract: uncertainty of superheated temperature, a new cascade control system is presented based on control’s history
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A brief history of wheat utilization in China

Minxia LU, Liang CHEN, Jinxiu WANG, Ruiliang LIU, Yang YANG, Meng WEI, Guanghui DONG

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 3,   Pages 288-295 doi: 10.15302/J-FASE-2019266

Abstract: However, the history of its origin and utilization in China remains highly ambiguous.

Keywords： multidisciplinary evidence     prehistoric food globalization     wheat consumption     wheat domestication    

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State identification of home appliance with transient features in residential buildings

Frontiers in Energy 2022, Volume 16, Issue 1,   Pages 130-143 doi: 10.1007/s11708-022-0822-z

Abstract: The proposed method was tested on a high-resolution data set such as Labeled hIgh-Frequency daTaset for

Keywords： load disaggregation     Kalman filtering     factorial hidden Markov model (FHMM)     Labeled hIgh-Frequency daTaset    

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An overview of the development history and technical progress of China’s coal-fired power industry

Weiliang WANG, Zheng LI, Junfu LYU, Hai ZHANG, Guangxi YUE, Weidou NI

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 417-426 doi: 10.1007/s11708-019-0614-2

Abstract: To specify the development of coal-fired power industry, its development history is reviewed and the

Keywords： coal-fired power     development strategy     eliminating outdated capacity     peak shaving     emission reduction     renewable energy    

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Association between history of abortion and metabolic syndrome in middle-aged and elderly Chinese women

Baihui Xu, Jie Zhang, Yu Xu, Jieli Lu, Min Xu, Yuhong Chen, Yufang Bi, Guang Ning

Frontiers of Medicine 2013, Volume 7, Issue 1,   Pages 132-137 doi: 10.1007/s11684-013-0250-x

Abstract: Until recently, studies focusing on the association between history of abortion and metabolic diseasesIn the present study, we aimed to investigate the association between history of abortion and metabolicOverall, we observed a positive association between history of induced abortion and the prevalence ofA multivariable-adjusted logistic regression analysis revealed that compared to those without a historyof induced abortion, women with a history of induced abortion remained at 1.25 times more likely to

Keywords： induced abortion     spontaneous abortion     metabolic syndrome    

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CROP-LIVESTOCK INTEGRATION FOR SUSTAINABLE AGRICULTURE IN CHINA: THE HISTORY OF STATE POLICY GOALS, REFORM

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 518-529 doi: 10.15302/J-FASE-2023525

Abstract:

This paper examines the historical evolution of crop-livestock integration in China with a specific focus on its role in mitigating non-point source pollution. Extensive examination of existing literature has unearthed the roots of crop-livestock integration dating back to the Western Zhou Dynasty (1046 to 771 BCE), ultimately culminating in a multifaceted and intricately interwoven system of rural development policies seen in contemporary China. This paper identifies and characterizes four distinct stages in the historical trajectory of crop-livestock integration: the era of self-sufficient subsistence production in traditional times (1046 BCE to 1948); the period where crop-livestock integration emerged as a pivotal strategy for augmenting grain and meat production under collectivist policies (1949‒1977); the phase marked by the industrialization and expansion of the livestock sector during the early years of economic reforms (1978‒2011); and the present era in which crop-livestock integration is harnessed as a mechanism for pollution control and ecological preservation in contemporary China (2012 to present). This paper illuminates the diverse contributions of crop-livestock integration in different epochs of rural development within China, which contributes to a nuanced and more theoretically grounded comprehension of circular agriculture. This understanding has the potential to be leveraged to promote sustainable rural development in broader contexts.

Keywords： crop-livestock integration     non-point source pollution control     nutrient cycling     policy intervention     sustainable development    

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Self-propelled automatic chassis of Lunokhod-1: History of creation in episodes

Mikhail MALENKOV

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1,   Pages 60-86 doi: 10.1007/s11465-016-0370-5

Abstract:

This report reviews the most important episodes in the history of designing the self-propelled automatic

Keywords： moon rover     self-propelled chassis     propulsion     wheel     suspension     soil properties     cross-country ability    

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International Winter Wheat Improvement Program: history, activities, impact and future

Alexey MORGOUNOV, Fatih OZDEMIR, Mesut KESER, Beyhan AKIN, Thomas PAYNE, Hans-Joachim BRAUN

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 3,   Pages 240-250 doi: 10.15302/J-FASE-2019261

Abstract:

International Winter Wheat Improvement Program (IWWIP) was established in 1986 between the Government of Turkey and CIMMYT with three main objectives: (1) develop winter/facultative germplasm for Central and West Asia, (2) facilitate global winter wheat germplasm exchange, and (3) training wheat scientists. ICARDA joined the program in 1991 making it a three-way partnership that continues to work effectively. The germplasm developed by IWWIP as well as the winter wheat cultivars and lines received from global cooperators are assembled into international nurseries. These nurseries are offered annually to public and private entities (IWWIP website) and distributed to more than 100 cooperators in all continents. IWWIP impact has primarily been in new winter wheat cultivars combining broad adaptation, high yield potential, drought tolerance and disease resistance. A total of 93 IWWIP cultivars have been released in 11 countries occupying annually an estimated 2.5–3.0 Mha. IWWIP cooperation with researchers in Turkey, Central and West Asia and several US universities has resulted in a number of publications reviewed in this paper. Important IWWIP impacts include national inventories of wheat landraces in Turkey, Tajikistan and Uzbekistan, their collection, characterization, evaluation and utilization.

Keywords： biotic and abiotic stresses     breeding     methodology     winter wheat    

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Research on Origin of Traditional Chinese Medicine

Fu Youfeng

Strategic Study of CAE 2006, Volume 8, Issue 9,   Pages 1-12

Abstract: research on rich resources of Chinese cultural relics, ancient writing and medical literature on medicine history

Keywords： world medicine history     history of TCM     medicine origin     plague     cholera     smallpox     comparative medicine    

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Title Author Date Type Operation

A constrained neural network model for soil liquefaction assessment with global applicability

Yifan ZHANG, Rui WANG, Jian-Min ZHANG, Jianhong ZHANG

Journal Article

Advanced finite element analysis of a complex deep excavation case history in Shanghai

Yuepeng DONG, Harvey BURD, Guy HOULSBY, Yongmao HOU

Journal Article

A simple method for evaluating liquefaction potential from shear wave velocity

Lianyang ZHANG,

Journal Article

Introduction to the special issue on the 2015 Workshop on History of Mechanism and Machine Science

Marco CECCARELLI

Journal Article

Natural history of HIV infection in former plasma donors in rural China

Min ZHANG, Hong SHANG, Zhe WANG, Wei-Guo CUI, Qing-Hai HU

Journal Article

The biopharmaceutical industry in China: history and future perspectives

Kai Gao, Junzhi Wang

Journal Article

Fuzzy cascade control based on control’s history for superheated temperature

WANG Guangjun, LI Gang, SHEN Shuguang

Journal Article

A brief history of wheat utilization in China

Minxia LU, Liang CHEN, Jinxiu WANG, Ruiliang LIU, Yang YANG, Meng WEI, Guanghui DONG

Journal Article

State identification of home appliance with transient features in residential buildings

Journal Article

An overview of the development history and technical progress of China’s coal-fired power industry

Weiliang WANG, Zheng LI, Junfu LYU, Hai ZHANG, Guangxi YUE, Weidou NI

Journal Article

Association between history of abortion and metabolic syndrome in middle-aged and elderly Chinese women

Baihui Xu, Jie Zhang, Yu Xu, Jieli Lu, Min Xu, Yuhong Chen, Yufang Bi, Guang Ning

Journal Article

CROP-LIVESTOCK INTEGRATION FOR SUSTAINABLE AGRICULTURE IN CHINA: THE HISTORY OF STATE POLICY GOALS, REFORM

Journal Article

Self-propelled automatic chassis of Lunokhod-1: History of creation in episodes

Mikhail MALENKOV

Journal Article

International Winter Wheat Improvement Program: history, activities, impact and future

Alexey MORGOUNOV, Fatih OZDEMIR, Mesut KESER, Beyhan AKIN, Thomas PAYNE, Hans-Joachim BRAUN

Journal Article

Research on Origin of Traditional Chinese Medicine

Fu Youfeng

Journal Article