|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | NUMERICAL STUDIES ON RESONANT AND ENHANCEMENT EFFECTS FOR COUPLING OF MICROWAVE PULSES INTO NARROW SLOTS显示文摘In this paper, modifications to the finite-difference time-domain(FD-TD) method for modeling microwave pulse coupling into a slot, which is much narrower than one conventional FD-TD cell, are discussed. The coupling process of microwave pulse into a slot is studied by using the modified FD-TD method, and the dependence of microwave coupling on slot sizes, the carrier frequencies and the polarization directions of the incident waves is analysed. Resonant and enhancement effects which occur in this process are observed. The condition at which the resonant effect takes place is also presented. | Wang Jianguo Yu Hanqing Liu Guozhi Chen Yusheng Fan Ruyu (Northwest Institute of Nuclear Technology, Branch 15, P. O. Box 69, Xi’an 710024)Ge Debiao(Department of Physics, Xidian University, Xi’an 710071) | 1998 | Journal of Electronics(China)1998，15，2： | 6 |
| 2 | Two-stage degradation and novel functional endothelium characteristics of a 3-D printed bioresorbable scaffold显示文摘Bioresorbable scaffolds have emerged as a new generation of vascular implants for the treatment of atherosclerosis,and designed to provide a temporary scaffold that is subsequently absorbed by blood vessels over time.Presently,there is insufficient data on the biological and mechanical responses of blood vessels accompanied by bioresorbable scaffolds(BRS)degradation.Therefore,it is necessary to investigate the inflexion point of degradation,the response of blood vessels,and the pathophysiological process of vascular,as results of such studies will be of great value for the design of next generation of BRS.In this study,abdominal aortas of SD rats were received 3-D printed poly-l-actide vascular scaffolds(PLS)for various durations up to 12 months.The response of PLS implanted aorta went through two distinct processes:(1)the neointima with desirable barrier function was obtained in 1 month,accompanied with slow degradation,inflammation,and intimal hyperplasia;(2)significant degradation occurred from 6 months,accompanied with decreasing inflammation and intimal hyperplasia,while the extracellular matrix recovered to normal vessels which indicate the positive remodeling.These in vivo results indicate that 6 months is a key turning point.This“two-stage degradation and vascular characteristics”is proposed to elucidate the long-term effects of PLS on vascular repair and demonstrated the potential of PLS in promoting endothelium function and positive remodeling,which highlights the benefits of PLS and shed some light in the future researches,such as drug combination coatings design. | Tieying Yin Ruolin Du Yang Wang Junyang Huang Shuang Ge Yuhua Huang Youhua Tan Qing Liu Zhong Chen Hanqing Feng Jie Du Yazhou Wang Guixue Wang | 2022 | Bioactive Materials2022，7，4： | 2 |
| 3 | Direct Hydroxylation of Benzene to Phenol with Molecular Oxygen over Phase Transfer Catalysts: Cyclodextrins Complexes with Vanadium-Substituted Heteropoly Acids显示文摘 | Hanqing Ge Yan Leng Changjiang Zhou Jun Wang | 2008 | Catalysis Letters (-)2008，，3： | 1 |
| 4 | Direct hydroxylation of benzene with hydrogen peroxide over pyridine–heteropoly compounds显示文摘 | Yan Leng Hanqing Ge Changjiang Zhou Jun Wang | 2008 | Chemical Engineering Journal2008，，2： | 1 |
| 5 | Direct hydroxylation of benzene with hydrogen peroxide over pyridine–heteropoly compounds显示文摘 | Yan Leng Hanqing Ge Changjiang Zhou Jun Wang | 2008 | Chemical Engineering Journal2008，，2： | 1 |
| 6 | Advances in homogeneous and heterogeneous catalytic asymmetric epoxidation显示文摘 | Xia Qinghua Ge Hanqing Ye Chuping | 2005 | Chemical Review2005，105，： | 1 |
| 7 | A new method for the synthesis of molybdovanadophosphoric heteropoly acids and their catalytic activities显示文摘An environmentally benign method for the syn-thesis of heteropoly acids H3+nPMo12–nVnO40·xH2O(PMoVn,n=1–3)was developed by the reaction of an aqueous slurry which contained stoichiometric amounts of MoO3,V2O5 and H3PO4.Characterization of the as-synthesized catalysts with inductively coupled plasma(ICP)elemental analysis,thermogravimetry(TG),X-ray diffraction(XRD)and infra-red(IR)spectroscopy indicated that V ions substituted for Mo ions in Keggin-type phosphomolybdic acid.The as-synthesized samples were found to be an efficient catalyst for the hydroxylation of benzene which was carried out in a mixed solvent of acetonitrile and acetic acid with aqueous hydrogen peroxide as oxidant.PMoV2 exhibited the highest benzene conversion of 34.5%with phenol selectivity of 100%. | ZHANG Fumin GUO Maiping GE Hanqing WANG Jun | 2007 | Frontiers of Chemical Science and Engineering2007，1，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员