Resource Type

Journal Article 16

Year

2022 1

2018 3

2016 1

2015 1

2014 1

2013 1

2009 1

2008 1

2007 2

2005 1

2003 1

2002 1

2001 1

open ︾

Keywords

automobile power 2

suggestion 2

Chinese natural comprehension 1

Hepatocellular carcinoma 1

Hydropower project 1

Situation prediction 1

Three Gorges Project 1

accelerator 1

assessment and prediction 1

automotive industry 1

automotive society 1

biomarker 1

buoyancy 1

capital operations 1

constraints 1

construction 1

diagram of 4D meridian circulation 1

disruptive technology 1

ecological civilization 1

open ︾

Search scope:

排序： Display mode:

―Summary of investigations on rotating cavity at IDG, RWTH Aachen University

Dieter BOHN, Jing REN,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 489-497 doi: 10.1007/s11708-009-0040-y

Abstract: Annular cavities are found inside rotor shafts of turbomachines with an axial or radial throughflow of cooling air, which influences the thermal efficiency and system reliability of the gas turbines. The flow and heat transfer phenomena in those cavities should be investigated in order to minimize the thermal load and guarantee the system reliability. An experimental rig is set up in the Institute of Steam and Gas Turbines, RWTH Aachen University, to analyze the flow structure inside the rotating cavity with an axial throughflow of cooling air. The corresponding 3D numerical investigation is conducted with the in-house flow solver CHTflow, in which the Coriolis force and the buoyancy force are implemented in the time-dependent Navier-Stokes equations. Both the experimental and numerical results show that the whole flow structure rotating slower than the cavity rotating speed. The flow passing the observation windows in the experimental and numerical results indicates the quite similar trajectories. The computed sequences and periods of the vortex flow structure correspond closely with those observed in the experiment. Furthermore, the numerical analysis reveals a flow pattern changing between single pair, double pair, and triple pair vortices. It is suggested that the vortices inside the cavity are created by the gravitational buoyancy force in the investigated case, while the number and strength of the vortices are controlled mainly by the Coriolis force.

Keywords： rotating cavity     buoyancy     unsteady flow    

HTML PDF Collect

Osteopontin is a promoter for hepatocellular carcinoma metastasis: a summary of 10 years of studies

Lunxiu Qin

Frontiers of Medicine 2014, Volume 8, Issue 1,   Pages 24-32 doi: 10.1007/s11684-014-0312-8

Abstract:

In this review, we summarize the novel findings from our series of studies on the leading metastasis-related gene, osteopontin (OPN). In our previous gene expression profiling study, OPN was identified as one of the leading genes associated with the metastasis of hepatocellular carcinoma (HCC). We focused on OPN to evaluate its prognostic values and important roles in HCC metastasis. A retrospective study of large cohorts of HCC patients demonstrated that plasma OPN level was one of the leading independent prognostic factors for HCC patients, even in the early stage of HCC, and could serve as a surrogate serologic biomarker for monitoring the treatment response and tumor recurrence after HCC resection. Using both in vitro and in vivoinvestigations, we found that OPN has an important role in metastasis and tumor growth of HCC and is an attractive potential therapeutic target for combating HCC metastasis. We also found that OPN+ HCC cells have much more amplifications at chromosomal regions, and promoter polymorphisms are important in the regulation of OPN expression and tumor growth and lung metastasis of HCC.

Keywords： osteopontin (OPN)     hepatocellular carcinoma     metastasis     prognosis     therapeutic target     biomarker     genetic polymorphism    

HTML PDF Collect

FLOWERING PLANTS AND ENTOMOPHAGOUS ARTHROPODS IN THE AGRICULTURAL LANDSCAPE: A PRACTISE-ORIENTED SUMMARY

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 1,   Pages 63-74 doi: 10.15302/J-FASE-2021427

Abstract:

There is a growing demand for high-quality agricultural products and more countries have adopted landscape management by sowing flowering plants in agricultural fields as an important branch of conservation biological control. However, there has been less concern over the interactions and trade-offs between floral plants and entomophagous arthropods. This paper review progress in pollen/nectar feeding habits of entomophagous insects including parasitoids and predators which are important natural enemies of crop pests in agricultural fields. Factors that influence the preference of different guilds of natural enemies are reviewed to guide the selection of flowering plants in conservation biological control practices. Most studies find that floral resources have positive effects on both biological traits of natural enemies and their abundance and diversity, and this is believed to contribute greatly to pest control. Furthermore, the potential impacts of floral resources on crop yields are also discussed with an emphasis on a guild of entomophagous insects that provides both pest control and pollination services.

 

Keywords： ecosystem services / flowering plants / natural enemies / nectar / pollen    

HTML PDF Collect

Summary and Analysis on the Ecological Civilization Experiences Domestic and Abroad

Yue Bo,Wu Xiaohui,Huang Qifei,Zhang Linbo

Strategic Study of CAE 2015, Volume 17, Issue 8,   Pages 151-158

Abstract:

Since the 1960s, facing to a serious threat of environmental pollution, ecological destruction, survival crisis, the Western countries has carried out a long-lasting work, such as the legal system establishment for ecological protection, environmental and economic policy setting up, the low-carbon green circular economy mode founding, ecological protection awareness training and industrial structure upgrading, etc., which have achieved remarkable progress. Since the middle and late 20th century, China has focused on the construction and protection of ecological environment. In the 18th National Congress of the Communist Party of China, ecological civilization construction has been brought into the “Five in One” overall plan of socialist construction with Chinese characteristics. Since then, the ecological civilization has risen from the academic level to the government’s policy agenda and national philosophy. In further promoting of ecological civilization construction, the following points should be important, which are to learn the ideological essence from ancient ecology, to comprehensively promote the institutional mechanism reform, to strengthen enforcement of the ecological and environmental protection law, to actively found the complex capital for ecological civilization construction, to vigorously promote industrial structure adjustment and upgrading, and to attach great importance to the people’s ecological civilization quality education.

Keywords： ecological civilization     home and abroad     experience summary     suggestion     prospect    

HTML PDF Collect

The summary of researches on ADS in China

XIA Haihong, ZHAO Zhixiang, LI Jigen, SHI Yongqian, HAN Yinlu, ZHU Shengyun, XU Yongli, GUAN Xialing, CUI Baoqun, FU Shinian

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 135-140 doi: 10.1007/s11708-007-0017-7

Abstract: The conceptual study on the accelerator driven system (ADS) that lasted for about five years ended in 1999 in China. As one project of the National Basic Research Program of China (973 Program) in the energy domain, which is sponsored by the China Ministry of Science and Technology (MOST), a five-year-program of fundamental research of ADS physics and related technology was launched in 2000 and passed national review at the end of 2005. The China Institute of Atomic Energy (CIAE), the Institute of High Energy Physics (IHEP), the Institute of Heavy Ion Physics in Peking University (PKU-IHIP) and other institutions jointly carried out the research. The research activities were focused on HPPA physics and technology, reactor physics of external source driven sub-critical assembly, nuclear data base and material study. For HPPA, a high current injector consisting of an ECR ion source, LEBT and an RFQ accelerating structure of 3.5 MeV was built. In reactor physics study, a series of neutron multiplication experimental study has been carried out and still being done. The VENUS facility has been constructed as the basic experimental platform for neutronics study in ADS blanket. It s a zero power sub-critical neutron multiplying assembly driven by external neutron produced by a pulsed neutron generator. The theoretical, experimental and simulation study on nuclear data, material properties and nuclear fuel circulation related to ADS is carrying on to provide the database for ADS system analysis. The main results on ADS related researches will be reported.

Keywords： accelerator     national     multiplying assembly     sub-critical assembly     simulation    

HTML PDF Collect

The predictive value of chromosome 8p deletion for metastasis of hepatocellular carcinoma: a summary

QIN Lunxiu, TANG Zhaoyou, GUAN Xinyuan, YE Qinghai, JIA Huliang, REN Ning

Frontiers of Medicine 2008, Volume 2, Issue 3,   Pages 211-215 doi: 10.1007/s11684-008-0041-y

Abstract: Hepatocellular carcinoma (HCC) represents an extremely poor prognostic cancer, which is mainly due to the high frequency of metastasis/recurrence after surgical operation. Exploring the molecular mechanisms involved in HCC metastasis could be helpful in the prediction and early diagnosis of HCC recurrence and could also provide new therapeutic targets for HCC metastasis. In the recent decade, we analyzed the genomic aberrations of the clinical specimens, as well as the metastatic models and cell lines of human HCC to identify the genetic markers related to HCC metastasis and to verify their clinical values in the prediction and control of metastasis of HCC. Using the comparative genomic hybridization (CGH) technique, we compared the differences of chromosomal aberrations between primary HCC tumors and their matched metastatic lesions, and found that chromosome 8p deletions might contribute to HCC metastasis. This novel finding was further confirmed by comparison between nude mice models of HCC with different metastatic potentials. By the more sensitive genome-wide microsatellite analysis, 8p deletion was defined to 8p23.3 and 8p11.2, which are two likely regions harboring metastasis-related genes of HCC. Using ‘8p-specific’ microarrays, two novel metastatic suppressors ( and ) were identified, and were proven to suppress invasion and metastasis of HCC. Clinical studies indicate that 8p deletion detected in HCC or circulating plasma DNA of patients is a useful predictor for metastatic recurrence and prognosis, even for patients with early stage HCC. These novel findings are regarded as important advances in the study of the molecular mechanisms of HCC metastasis, which provide not only a holistic view on the molecular cytogenetic bases of HCC metastasis, but also candidate regions for further study to identify metastatic suppressor genes.

Keywords： sensitive genome-wide     prediction     genome-wide microsatellite     frequency     Hepatocellular carcinoma    

HTML PDF Collect

Research progress in tribo-electrochemistry and tribo-electrochemical polishing

ZHAI Wenjie

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 463-467 doi: 10.1007/s11465-007-0080-0

Abstract: Based on a summary of the conventional polishing principles of hard and brittle materials, the tribo-electrochemical

Keywords： tribo-electrochemical mechanisms     planarization     non-aqueous     tribo-electrochemistry     summary    

HTML PDF Collect

Construction summary of Three Gorges Project ship lift

Zhao Xijin

Strategic Study of CAE 2013, Volume 15, Issue 9,   Pages 9-14

Abstract:

The ship lift of Three Gorges Project is huge and technically complex, and as there is no similar ship lift in the world as a precedent putting into operation, it has been well concerned by domestic and international engineering and technical community. The design and research process of Three Gorges Project ship lift , has been strongly supported by many domestic scientific research and design units, their works provide a theoretical basis for the gradual improvement of the ship lift design. After scheme comparison, the Three Gorges Project ship lift eventually identified as rack and pinion climbing type, its equipment is of complex structure and its manufacture, installation and civil structure need high construction precision requirements, and the Sino-German joint design approach is adopted for the first time. The final review and acceptance for the design results of every stages are executed by Quality Experts Group of Three Gorges Project organized by the Three Gorges Project Corporation. For the technical difficulties and key technical issues of the ship lift, a series of special experimental researchs, such as "research on manufacturing technology of rack, nut column" are organized to examine the rationality and implement ability of the key project design of ship lift .To reduce the effect of tower column deformation on the installation accuracy of rack and nut column, some research and adjustment are done to the construction procedures of ship lift to ensure safe and reliable operation of ship lift. Engineering construction proofs that the management, technical measures undertaken in this paper are scientific and they ensure the smooth implementation of the construction of the Three Gorges Project ship lift.

Keywords： construction     review     ship lift     Three Gorges Project    

HTML PDF Collect

Financing & Capital Operations of Large Hydropower Projects——A Summary Review of Financing Strategies

Li Yongan

Strategic Study of CAE 2003, Volume 5, Issue 10,   Pages 1-7

Abstract:

By summing up the financing strategies and practices in the ten year´s construction of the Three Gorges Project, the paper analyzes thoroughly the features and characteristics of financing and capital operations in large hydropower projects. Meanwhile proposals have also been presented for the optimization of financing structure, lowering financing costs and setting up a carrier for sustainable financing and capital operations in large hydropower project construction.

Keywords： Hydropower project     financing     capital operations    

HTML PDF Collect

Summary of Research Progress and Methods of Disruptive Technology in China and Abroad

Sun Yongfu, Wang Liheng, Lu Chunhua, Sun Zongtan, Wang Kunsheng, Xu Yuan

Strategic Study of CAE 2018, Volume 20, Issue 6,   Pages 14-23 doi: 10.15302/J-SSCAE-2018.06.003

Abstract:

At present, technological innovation has entered an unprecedentedly intensive and active period worldwide, while some major disruptive technologies are constantly emerging. These disruptive technologies have accelerated the iteration of new industries and formats, are profoundly influencing the balance among national powers, and will contribute in reshaping the world economic structure and the international competition pattern. To seize this opportunity given by the times, countries are now actively engaged in early identification and nurture of disruptive technologies. In this paper, research reports on disruptive technologies in China and abroad are extensively followed, and research progress and methods of disruptive technologies are summarized, analyzed and evaluated. This paper also puts forward some suggestions to promote the scientific development of disruptive technology research in China, including establishment of specialized think tanks by concentrating superior resources, establishment of a scientific technology evaluation system, etc.

Keywords： disruptive technology     assessment and prediction     methods    

HTML PDF Collect

Summary of Strategy Research on Automobile Power in New Era (I)

Zhong Zhihua,Qiao Yingjun,Wang Jianqiang,Yang Yanping,Yang Bo,Wang Dongsheng,Zhao Shijia and Deng Hui

Strategic Study of CAE 2018, Volume 20, Issue 1,   Pages 1-10 doi: 10.15302/J-SSCAE-2018.01.001

Abstract:

This article is the first part of summary of strategy research on automobile power (comprising two

Keywords： automobile power     automotive industry     automotive society    

HTML PDF Collect

Summary of Strategy Research on Automobile Power in New Era (II)

Zhong Zhihua,Qiao Yingjun,Wang Jianqiang,Zhao Shijia,Yang Bo,Ye Fanglin,Chen Hao and He Jingjing

Strategic Study of CAE 2018, Volume 20, Issue 1,   Pages 11-19 doi: 10.15302/J-SSCAE-2018.01.002

Abstract:

In the first part of the strategy research about building automotive power, we draw a conclusion that China should seize the great opportunity of starting a new revolution in the automotive industry and accelerate the building of automobile power in the new era. Based on this, the paper investigates the problems existing in the automotive industry and determines 34 constraints arising from seven aspects that are hindering the establishment of automobile industry. We analyze the constraints and summarize them into ten. Then we describe the principal contradictions, and carry out the strategic thinking on the construction of automobile power combining with the current situation and constraints. We conclude that China should accelerate implementing the strategy of building automobile power in the new era, and propose core measures and key suggestions to promote it.

Keywords： automobile power     strategy research     constraints     principal contradiction     strategic thinking    

HTML PDF Collect

A Theoretical Summary and Mathematics Expression on the Regulation of Life in Meridian (Jing-Iuo) Science

Zhang Renxiang,Zhang Renji

Strategic Study of CAE 2005, Volume 7, Issue 4,   Pages 42-46

Abstract:

The meridian (Jing-Luo) is a core principle of Chinese medicine. The meridian plays a central role in the regulation of human health and vitality. In the past 50 years,the scientific evidence has been gathered via physiological experiments to confirm the biological basis of the human meridian pathway phenomenon. Meridian Science has been established as a new branch of natural science to advance and promote the study of this important phenomenon for human life. In this paper, the authors describe the theoretical concept of the meridian and mathematics expression, its relationship to an efficient meridian circadian cycle, and its significance to human life.

Keywords： Chinese natural comprehension     meridian science     principal of bi-way transforming modulation in symmetry and asymmetry     diagram of 4D meridian circulation     efficiency of meridian linking up    

HTML PDF Collect

Title Author Date Type Operation

―Summary of investigations on rotating cavity at IDG, RWTH Aachen University

Dieter BOHN, Jing REN,

Journal Article

Osteopontin is a promoter for hepatocellular carcinoma metastasis: a summary of 10 years of studies

Lunxiu Qin

Journal Article

FLOWERING PLANTS AND ENTOMOPHAGOUS ARTHROPODS IN THE AGRICULTURAL LANDSCAPE: A PRACTISE-ORIENTED SUMMARY

Journal Article

Summary and Analysis on the Ecological Civilization Experiences Domestic and Abroad

Yue Bo,Wu Xiaohui,Huang Qifei,Zhang Linbo

Journal Article

The summary of researches on ADS in China

XIA Haihong, ZHAO Zhixiang, LI Jigen, SHI Yongqian, HAN Yinlu, ZHU Shengyun, XU Yongli, GUAN Xialing, CUI Baoqun, FU Shinian

Journal Article

The predictive value of chromosome 8p deletion for metastasis of hepatocellular carcinoma: a summary

QIN Lunxiu, TANG Zhaoyou, GUAN Xinyuan, YE Qinghai, JIA Huliang, REN Ning

Journal Article

Research progress in tribo-electrochemistry and tribo-electrochemical polishing

ZHAI Wenjie

Journal Article

Construction summary of Three Gorges Project ship lift

Zhao Xijin

Journal Article

Summary of the Symposium on the Current Situation and Development Trend of New Materials in the 21st

null

Journal Article

Summary of the Symposium on the Current Situation and Development Trend of New Materials in the 21st

Journal Article

Financing & Capital Operations of Large Hydropower Projects——A Summary Review of Financing Strategies

Li Yongan

Journal Article

Summary of Research Progress and Methods of Disruptive Technology in China and Abroad

Sun Yongfu, Wang Liheng, Lu Chunhua, Sun Zongtan, Wang Kunsheng, Xu Yuan

Journal Article

Summary of Strategy Research on Automobile Power in New Era (I)

Zhong Zhihua,Qiao Yingjun,Wang Jianqiang,Yang Yanping,Yang Bo,Wang Dongsheng,Zhao Shijia and Deng Hui

Journal Article

Summary of Strategy Research on Automobile Power in New Era (II)

Zhong Zhihua,Qiao Yingjun,Wang Jianqiang,Zhao Shijia,Yang Bo,Ye Fanglin,Chen Hao and He Jingjing

Journal Article

A Theoretical Summary and Mathematics Expression on the Regulation of Life in Meridian (Jing-Iuo) Science

Zhang Renxiang,Zhang Renji

Journal Article