• Citations Per Year
Learn More
OBJECTIVE To investigate the desirable healing time of micro-screws by histomorphologic and histomorphometric evaluations of osseointegration after immediate and early loading. MATERIALS AND METHODS Fifty-four micro-screws were bilaterally placed in the maxillary premolar regions of nine beagles. Then the micro-screws with various healing time of 0 day(More)
This study was aimed to investigate the alteration of α-actin in three-dimensionally (3-D) cultured myocytes under cyclic tensile stress loading. Myocytes were collected from neonatal SD rat’s lateral pterygoid muscle for primary cell culture. The third-passage cells were implanted and 3-D cultured in poly lactic-co-glycolic acid (PLGA) scaffold, and then(More)
Based on the observation of the E-commerce management practice in other countries in the world, this essay intends to discuss the general principles of E-commerce management, including market orientation, government facilitation, international coordination, establishment of focal points of development, consistency and cultivation of talented personnel. It(More)
  • Na Li, Shaohua Zhang, Liqiang Zheng, Jiapei Wu, Xinwei Li, Li Yu
  • The journal of physical chemistry. B
  • 2008
The aggregation behavior of a fluorinated surfactant (FC-4) was studied by surface tension measurements in 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF 4]) and hexafluorophosphate ([bmim][PF 6]) at various temperatures. A series of surface properties, including adsorption efficiency (p C 20), effectiveness of surface tension reduction (Pi CAC),(More)
RFID system is used widely in different applications and comes in a myriad of forms today. It is doomed to be concerned by people and still be the hot spot of research in the next few years. In this paper, Key issues of RFID reader network system are studied, such as taxonomy of RFID system, collision problems, security and privacy problems, etc. In the(More)
OBJECTIVE The study was aimed to provide insights into genes governing the early stages of cell proliferation ability alteration and mechano-response in human periodontal ligament cells (PDLCs) induced by short-term cyclic tensile stress. MATERIALS AND METHODS Primary human PDLCs were subjected to cyclic tensile stress (0.5 Hz, 5000 μstrain) for 2h(More)
Cyclic compressive force is an important mechanical stimulus on periodontal ligament (PDL). The differential expression of genes in PDL cells is thought to be involved in the remodeling of periodontal tissues subjected to mechanical stress. However, little is known about differentially expressed genes in PDL cells under cyclic compressive force. In our(More)
Surface tension measurements were carried out for the solutions of polyoxyethylene (20) sorbitan monolaurate (Tween 20) in 1-butyl-3-methylimidazolium tetrafluoroborate (bmimBF 4) and hexafluorophosphate (bmimPF 6) at various temperatures. Two transition points were found in the surface tension-concentration curves at each temperature. The freeze-fracture(More)
  • 1