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Zeng D.,Changsha Social Work College
Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery | Year: 2011

To review the regulation and mechanism of the microRNAs (miRNAs) in the bone and cartilage tissue. Recent literature concerning the regulation and mechanism of the miRNAs in the bone and cartilage tissue was extensively reviewed, summarized, and analyzed. Recently miRNAs is a hot topic in the bone and cartilage tissue. More and more materials show its important regulatory role in osteogenesis and cartilage growth and regeneration, but the definite mechanisms have not been clear yet. The study on miRNAs of bone and cartilage tissue can provide a new access to understanding the degenerative osteoarthritic diseases.

Sun Z.,National University of Defense Technology | Li Z.,Changsha Social Work College | Gong E.,National University of Defense Technology | Xie H.,National University of Defense Technology
Reliability Engineering and System Safety | Year: 2012

Human Error Probability (HEP) point estimation is important for Probabilistic Safety Assessment (PSA) of socio-technical systems. We present a modified basic method of CREAM to provide the point estimation of HEP for PSA. Five acknowledged assumptions are introduced firstly and the HEP point estimation formula is elicited based on them. Furthermore, the reasonability of the method is discussed and the consistency with other two benchmarking HRA methods, THERP and HEART is validated. Finally, a simple example about starting up the submarines engine is introduced and the probability of the error forgetting the warm operation is calculated using the modified method. The result of the method is consistent with the recorded human performance data and THERP. © 2011 Elsevier Ltd. All rights reserved.

Bai K.,Yangtze University | Wang H.B.,Changsha Social Work College | Li M.,Yangtze University
Applied Mechanics and Materials | Year: 2014

This paper analyzes the problems of the modern logistics: track and trace of products, and provides an effective solution that combines with RFID and web services to develop a B/S platform of track and trace of logistics. RFID middleware is adopted in the system implementation process. The paper has done a lot of research in some key technologies in the design,the manufacturer, the third part of logistics and the retailers are the three key roles, they can both use this system to track and trace products in the Internet. © (2014) Trans Tech Publications, Switzerland.

Deng W.D.,Changsha Social Work College
Advanced Materials Research | Year: 2011

Tiny OS Beaconing routing protocol is widely used in Wireless Sensor Network (WSN), but it can easily cause the network to fail because some important nodes use up their energy too fast. The present paper suggests an improved Tiny OS Beaconing routing protocol by adding max sub-node, layer control and route maintaining so as to highly prolong the survival time of the WSN, and make the network more reliable. © (2011) Trans Tech Publications.

Gao Y.,Central South University | Liu J.,Central South University | Ma P.,Changsha Social Work College
Proc. 10th IEEE Int. Conf. on Trust, Security and Privacy in Computing and Communications, TrustCom 2011, 8th IEEE Int. Conf. on Embedded Software and Systems, ICESS 2011, 6th Int. Conf. on FCST 2011 | Year: 2011

Key phrase consisting of several words is viewed as the phrase that represent the topic and the content of the whole text. Extracting key phrase is a good way to detect hot topics and tracking topics from news report. In this paper, a two-step key phrase extraction method based on TF*PDF is proposed. In the first step, the position-weighted TF*PDF algorithm is proposed to obtain candidate hot term list and the bursty value of term is used to filter the noise in the list. In the second step, a phrase identification process combines hot terms into phrases using position information, frequency information etc. At last the position-weighted TF*PDF algorithm are also used to weight the phrase, and the top k phrases are chosen as hot key phrases. The experiments on the real web data indicate that our extraction method provides solutions with improved quality. © 2011 IEEE.

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