http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Chee Ching Chong (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Effects of metal-molecule interface conformations on the electron transport of single molecule
Ping Bai,Er Ping Li,Chee Ching Chong,Zhikuan Chen 한국물리학회 2006 Current Applied Physics Vol.6 No.3
The electron transport eects of molecule locations on the metal interface are investigated through metalmoleculemetal systemsusing the rst principles method, based on density functional theory with norm conserving non-local pseudopotentials and non-equilib-rium Green’s functions. Three kinds of moleculemetal interface conformations are studied. These include locating the molecule on thetop, at the hollow site and on the bridge of metal surface atoms. AumoleculeAu open systems are constructed and numerically exam-sion functions of constructed systems are calculated and analyzed. Simulated results show that the on-atom contact exhibits the bestmoleculemetal coupling when an external bias lower than 1.4 V is applied. The bridge contact has a similar coupling as the hollow con-tact with a small dierence at larger external bias. This may partially explain why experimental results have poor repeatability.
-
Hock, Lim Kuang,Ghazali, Sumarni Mohamad,Cheong, Kee Chee,Kuay, Lim Kuang,Li, Lim Hui,Huey, Teh Chien,Ying, Chan Ying,Yen, Yeo Lay,Ching, Fiona Goh Swee,Yi, Khoo Yi,Lin, Chong Zhuo,Ibrahim, Normala,Mu Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.10
Intention to smoke is a valid and reliable factor for predicting future smoking habits among adolescents. This factor, however, has received inadequate attention in Malaysia. The present paper elaborates the prevalence and factors associated with intent to initiate or to cease smoking, among adolescent nonsmokers and smokers in Kota Tinggi, Johor, Malaysia. A total of 2,300 secondary school students aged 13-16 years were selected through a two-stage stratified sampling method. A set of standardized questionnaires was used to assess the smoking behavior among adolescents and the inter-personal and intra-personal factors associated with smoking intention (intention to initiate smoking or to cease smoking). Multivariable logistic regression was used to identify factors related to smoking intention. The prevalence of intention to smoke in the future or to cease smoking among non-smoking adolescents and current smokers were 10.7% and 61.7% respectively. Having friends who smoke, social influence, and poor knowledge about the ill effects on health due to smoking showed significant relationships with intention to smoke in the future among non-smokers. Conversely, perceived lower prevalence of smoking among peers, weak contributory social influence, and greater awareness of the ill effects of smoking are factors associated with the intention to cease smoking sometime in the future. The study found that prevalence of intention to initiate smoking is low among non-smokers while the majority of current smokers intended to cease smoking in the future. Existing anti-smoking programmes that integrate the factors that have been identified in the current study should be put in motion to reduce the prevalence of intention to initiate smoking and increase the intention to cease smoking among adolescents.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
