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Current situation and challenge of registry in China

Yang Zhang,Yuji Feng,Zhi Qu,Yali Qi,Siyan Zhan

Frontiers of Medicine 2014, Volume 8, Issue 3,   Pages 294-299 doi: 10.1007/s11684-014-0355-x

Abstract: Patient registries for observational studies were retrieved from the International Clinical Trials Registry

Keywords： observational study     Chinese     registry study     patient registries    

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Atypical manifestations of acute coronary syndrome — throat discomfort: a multi-center observationalstudy

Frontiers of Medicine 2022, Volume 16, Issue 4,   Pages 651-658 doi: 10.1007/s11684-021-0859-0

Abstract: coronary syndrome manifested primarily as throat discomfort, we conducted a multicentric and retrospective study

Keywords： acute coronary syndrome (ACS)     throat discomfort (TD)     throat pain     cardiology departments     non-cardiologic physicians    

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An 84-month observational study of the changes in CD4 T-lymphocyte cell count of 110 HIV/AIDS patients

Jian Wang,Biyan Liang,Xiaoping Zhang,Liran Xu,Xin Deng,Xiuhui Li,Lu Fang,Xinghua Tan,Yuxiang Mao,Guoliang Zhang,Yuguang Wang

Frontiers of Medicine 2014, Volume 8, Issue 3,   Pages 362-367 doi: 10.1007/s11684-014-0363-x

Abstract:

This study aimed to evaluate the therapeutic effect of traditional Chinese medicine (TCM) by observing

Keywords： AIDS     HIV     CD4     traditional Chinese medicine     linear models    

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Predictive Analysis and Observational Construction for aLarge-Scale Underground Powerhouse Cavern Complex

Wang Yisen,Liu Sihong

Strategic Study of CAE 2007, Volume 9, Issue 3,   Pages 35-40

Abstract:

In this paper, the predictive analysis and observational construction

Keywords： underground cavern complex     predictive analysis     observational construction     rock supportdesign    

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Design and Implementation of Meteorological Observation System Projects

Zheng Guoguang

Strategic Study of CAE 2000, Volume 2, Issue 6,   Pages 21-26

Abstract:

The current situation of the meteorololgical observation in China and the development tendency of the meteorological observation technology are analyzed. The principal goals of the design and implementation of the meteorological observation system project in China are described. The overall sketch and the main items of the “Meteorological Observation Automation Project (Phase 1)”, which is one of the national key projects to be carried out, are given. This paper is also one of the extending parts for “the Engineerized Implementation of Atmospheric Science”.

Keywords： atmosphere observation     observational automation     engineering design and implementation    

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Characteristics and Severity Assessment of Lung Ultrasound in COVID-19 Pneumonia: A Retrospective, ObservationalStudy Article

Fengxue Zhu, Xiujuan Zhao, Tianbing Wang, Zhenzhou Wang, Fuzheng Guo, Haiyan Xue, Panpan Chang, Hansheng Liang, Wentao Ni, Yaxin Wang, Lei Chen, Baoguo Jiang

Engineering 2021, Volume 7, Issue 3,   Pages 367-375 doi: 10.1016/j.eng.2020.09.007

Abstract: This was a retrospective, observational study at Tongji Hospital, on 48 recruited patients with COVID

Keywords： Coronavirus disease 2019     Lung ultrasound     Pneumonia    

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The theory and practice for observing design layout of Southwest China vortex atmospheric scientific experiment

Li Yueqing,Xu Xiangde,Zhao Xingbing

Strategic Study of CAE 2012, Volume 14, Issue 9,   Pages 35-45

Abstract: research and field experiment on Southwest China vortex, this paper gives out the importance of the observationalatmospheric scientific experiment from the aspects of the network distribution, equipment level and observational

Keywords： Southwest China vortex     scientific experiment     observational basis     design-layout technology    

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The observation of water-ice-air-ecosystem interactions and its application over the Tibetan Plateau area

Ma Yaoming

Strategic Study of CAE 2012, Volume 14, Issue 9,   Pages 28-34

Abstract: Then the preliminary observational results are shown in the paper.Finally, the difficulty in observation and study of water-ice-air-ecosystem interactions of the Tibetan

Keywords： Tibetan Plateau     water-ice-air-ecosystem interactions     preliminary observational analysis results-O13    

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Scale study of sites and pavilions for World Expo 2010

ZHOU Zhuoyan, CHEN Yi

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 1,   Pages 102-106 doi: 10.1007/s11709-008-0012-z

Abstract: The scale of sites and pavilions for World Expo 2010 (Shanghai World Expo) mainly refers to the study

Keywords： pavilion     study     number     appropriate     design    

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Practicality study on air-powered vehicle

LIU Lin, YU Xiaoli

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 14-19 doi: 10.1007/s11708-008-0004-7

Abstract: To investigate the feasibility and outlook of air-powered vehicles including compressed air-powered vehicle and liquid nitrogen-powered vehicle, thermodynamic analysis and experiment data were used to analyze the energy density, performance, safety, running efficiency, fuel circulation economy and consumer acceptance, etc. The results show that compressed air and liquid nitrogen have similar energy density as Ni-H battery; the characteristics of an air-powered engine is suitable for driving a vehicle; the circulation efficiency of liquid nitrogen is 3.6%–14% and that of compressed air is 25%–32.3% in practice, and existing technology can assure its safety. It is concluded that though the performance of an air-powered engine is inferior to that of the traditional inert combustion engine, an air-powered vehicle is fit for future green cars to realize the sustainable development of society and environment.
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Experimental study on shear behavior of prestressed reactive powder concrete I-girders

Hui ZHENG, Zhi FANG, Bin CHEN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 618-627 doi: 10.1007/s11709-018-0500-8

Abstract: Further study should be needed to develop an analytical method and computation model for shear strength

Keywords： prestressed concrete     RPC(Reactive Powder Concrete)     concrete beams     shear strength     experimental study    

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A feasibility study of the measuring accuracy and capability of wireless sensor networks in tunnel monitoring

Xiaojun LI, Zhong JI, Hehua ZHU, Chen GU

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 111-120 doi: 10.1007/s11709-012-0150-1

Abstract: Fire disasters and the deterioration of tunnel structures are major concerns for tunnel operation and maintenance. Traditional wired monitoring systems have many drawbacks in terms of installation time, overall cost, and flexibility in tunnel environments. In recent years, there has been growing interest in the use of wireless sensor networks (WSNs) for the monitoring of various structural monitoring applications. This paper evaluated the feasibility of applying a WSN in the monitoring of tunnels. The monitoring requirements of tunnels under explosion and combustion fire scenarios are analyzed using numerical simulation, and the maximum possible distance for temperature sensors is derived. The displacement monitoring of tunnels using an inclinometer is investigated. It is recommended that the inclinometer should be installed in the 1/4 span of the tunnel structure. The maximum wireless transmission distances in both outdoor and tunnel environments were examined. The influences of surface materials and sensor node locations on the data transmission distance in tunnel environments were also investigated. The experimental results show that the data loss in tunnel environments is approximately three times that in outdoor environments. Surface material has a considerable influence on the transmission distance of radio signals. The distance is 25 ? 28 m for a raw concrete surface, 20 m for a brick surface, and 36 m for a terrazzo surface. The transmission distances along the middle of quarter points are approximately 0.9 ( is the transmission distance in the center of the tunnel), and the relative error is less than±3%. The transmission distances at different locations along the bottom exhibit significant differences, decreasing from the middle to the corner point, with distances of approximately 0.8 at the quarter points and minimum distances of approximately 0.55 at the corner points.

Keywords： wireless sensor network (WSN)     tunnel     monitoring     feasibility study    

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Antimicrobial activity of topical agents against Propionibacterium acnes: an in vitro study of clinical

Ying Ma,Nanxue Zhang,Shi Wu,Haihui Huang,Yanpei Cao

Frontiers of Medicine 2016, Volume 10, Issue 4,   Pages 517-521 doi: 10.1007/s11684-016-0480-9

Abstract:

This study aimed to compare the antimicrobial activities of topical agents against Propionibacterium

Keywords： antimicrobial susceptibility/resistance     Propionibacterium acnes     topical antibiotics     in vitro study    

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Genetic study and molecular breeding for high phosphorus use efficiency in maize

Dongdong LI, Meng WANG, Xianyan KUANG, Wenxin LIU

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 4,   Pages 366-379 doi: 10.15302/J-FASE-2019278

Abstract:

Phosphorus is the second most important macronutrient after nitrogen and it has many vital functions in the life of plants. Most soils have a low available P content, which has become a key limiting factor for increasing crop production. Also, low P use efficiency (PUE) of crops in conjunction with excessive application of P fertilizers has resulted in serious environmental problems. Thus, dissecting the genetic architecture of crop PUE, mining related quantitative trait loci (QTL) and using molecular breeding methods to improve high PUE germplasm are of great significance and serve as an efficient approach for the development of sustainable agriculture. In this review, molecular and phenotypic characteristics of maize inbred lines with high PUE, related QTL and genes as well as low-P responses are summarized. Based on this, a breeding strategy applying genomic selection as the core, and integrating the existing genetic information and molecular breeding techniques is proposed for breeding high PUE maize inbred lines and hybrids.

Keywords： maize     phosphorus use efficiency     quantitative trait loci     genetic study     molecular breeding     genomic selection    

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Parametric study on seismic performance of self-centering reinforced concrete column with bottom-placed

Frontiers of Structural and Civil Engineering   Pages 1145-1162 doi: 10.1007/s11709-023-0945-2

Abstract: To realize seismic-resilient reinforced concrete (RC) moment-resisting frame structures, a novel self-centering RC column with a rubber layer placed at the bottom (SRRC column) is proposed herein. For the column, the longitudinal reinforcement dissipates seismic energy, the rubber layer allows the rocking of the column, and the unbonded prestressed tendon enables self-centering capacity. A refined finite element model of the SRRC column is developed, the effectiveness of which is validated based on experimental results. Results show that the SRRC column exhibits stable energy dissipation capacity and no strength degradation; additionally, it can significantly reduce permanent residual deformation and mitigate damage to concrete. Extensive parametric studies pertaining to SRRC columns have been conducted to investigate the critical factors affecting their seismic performance.

Keywords： seismic resilience     self-centering     rubber layer     flag-shaped hysteresis loop     parametric study    

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Title Author Date Type Operation

Current situation and challenge of registry in China

Yang Zhang,Yuji Feng,Zhi Qu,Yali Qi,Siyan Zhan

Journal Article

Atypical manifestations of acute coronary syndrome — throat discomfort: a multi-center observationalstudy

Journal Article

An 84-month observational study of the changes in CD4 T-lymphocyte cell count of 110 HIV/AIDS patients

Jian Wang,Biyan Liang,Xiaoping Zhang,Liran Xu,Xin Deng,Xiuhui Li,Lu Fang,Xinghua Tan,Yuxiang Mao,Guoliang Zhang,Yuguang Wang

Journal Article

Predictive Analysis and Observational Construction for aLarge-Scale Underground Powerhouse Cavern Complex

Wang Yisen,Liu Sihong

Journal Article

Design and Implementation of Meteorological Observation System Projects

Zheng Guoguang

Journal Article

Characteristics and Severity Assessment of Lung Ultrasound in COVID-19 Pneumonia: A Retrospective, ObservationalStudy

Fengxue Zhu, Xiujuan Zhao, Tianbing Wang, Zhenzhou Wang, Fuzheng Guo, Haiyan Xue, Panpan Chang, Hansheng Liang, Wentao Ni, Yaxin Wang, Lei Chen, Baoguo Jiang

Journal Article

The theory and practice for observing design layout of Southwest China vortex atmospheric scientific experiment

Li Yueqing,Xu Xiangde,Zhao Xingbing

Journal Article

The observation of water-ice-air-ecosystem interactions and its application over the Tibetan Plateau area

Ma Yaoming

Journal Article

Scale study of sites and pavilions for World Expo 2010

ZHOU Zhuoyan, CHEN Yi

Journal Article

Practicality study on air-powered vehicle

LIU Lin, YU Xiaoli

Journal Article

Experimental study on shear behavior of prestressed reactive powder concrete I-girders

Hui ZHENG, Zhi FANG, Bin CHEN

Journal Article

A feasibility study of the measuring accuracy and capability of wireless sensor networks in tunnel monitoring

Xiaojun LI, Zhong JI, Hehua ZHU, Chen GU

Journal Article

Antimicrobial activity of topical agents against Propionibacterium acnes: an in vitro study of clinical

Ying Ma,Nanxue Zhang,Shi Wu,Haihui Huang,Yanpei Cao

Journal Article

Genetic study and molecular breeding for high phosphorus use efficiency in maize

Dongdong LI, Meng WANG, Xianyan KUANG, Wenxin LIU

Journal Article

Parametric study on seismic performance of self-centering reinforced concrete column with bottom-placed

Journal Article