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几位著名中国物理学家与西方物理学大师们 被引量:1
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作者 厚宇德 《物理》 CAS 北大核心 2003年第4期269-273,共5页
回顾了吴有训、严济慈、赵忠尧、王淦昌、钱学森、钱三强、彭桓武和黄昆等几位中国早期物理学家在海外求学时的宝贵经历以及取得的辉煌成就 ,展示了他们的才华、勤奋与气节 ,对祖国的挚爱以及同国际一流物理大师们的友谊 .
关键词 中国物理学家 西方物理学家 物理学研究 物理学 康普顿效应 压电效应
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中国物理学家在“二战”中的贡献
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作者 吴炎 倪闽景 应兴国 《物理教学》 2006年第3期47-50,共4页
二战期间,中国的一批青年物理学家钱学森、钱三强、钱伟长、王淦昌、昊健雄、王明贞、盂昭荚等正在美国与欧洲留学。由于战争爆发.他们都投入到国防科研中.不少人还参与了原子弹、雷达、导弹这三件二战中发明的新式武器研制中,并作... 二战期间,中国的一批青年物理学家钱学森、钱三强、钱伟长、王淦昌、昊健雄、王明贞、盂昭荚等正在美国与欧洲留学。由于战争爆发.他们都投入到国防科研中.不少人还参与了原子弹、雷达、导弹这三件二战中发明的新式武器研制中,并作出了重要贡献。由于当时中国与羡、英、法、苏是站在同一条反法西斯战线上的同盟国,因此,他们参与研制新式武器就是为打败德、日法西斯作贡献.这正是他们爱国情怀的展示.民族精神的体现。因而值得发扬光大,为今天的青年学生学习。 展开更多
关键词 中国物理学家 雷达 导弹 原子弹
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Physical characteristics of Chinese Hakka 被引量:13
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作者 ZHENG LianBin LI YongLan +5 位作者 LU ShunHua BAO JinPing WANG Yang ZHANG XiaoRui XUE Hong RONG WenGuo 《Science China(Life Sciences)》 SCIE CAS 2013年第6期541-551,共11页
Using standard and internationally validated methods,86 anthropologic characteristics were determined in 650 male(305 from urban areas and 345 from rural areas) and 704 female(331 from urban areas,373 from rural areas... Using standard and internationally validated methods,86 anthropologic characteristics were determined in 650 male(305 from urban areas and 345 from rural areas) and 704 female(331 from urban areas,373 from rural areas) Chinese Hakka adults living in Guangdong and Jiangxi.The data were used to calculate 24 anthropologic indices,which were analyzed statistically.The physical characteristics of Hakka subjects were analyzed and compared with reference ethnic data.There were four main findings of this study.First,a small proportion of Hakka adults had an eye fold on the upper eyelid,but a large proportion had a mongoloid fold.The eye slits were narrow in most adults,had a medium nasal root height and straight bridges,and most of the external angles were prominent.The nasal base was upturned in most men.The distributions of the three types of nasal base in women were similar.The proportions of subjects with middle and high alae nasi heights were high and similar.Males with a maximum nostril diameter were mostly classified as transverse and oblique,while many women were classified as transverse and had relatively wide alae nasi.The round lobe type was the most common.Upper lip skin height was mostly classified as medium.Lips were classified as thin.The hair was black,eyes were brown,and the skin was yellowish.Second,the head length was long in male Hakka.The minimum frontal breadth,face breadth,lip height,and interocular breadth were similar to those of North-Asian populations.Meanwhile,head breadth,morphological facial height,nose breadth,mouth breadth,and nose height were similar to those of South-Asian populations.Head length was long in female Hakka.The minimum frontal breadth,face breadth,lip height,and interocular breadth were similar to those of North-Asian populations.Head breadth,nose breadth,and mouth breadth were similar to those of South-Asian populations.Third,the stature of male and female Hakka in urban and rural areas was classified as medium.The proportions of male and female Hakka classified as mesocephaly(length-breadth index of the head),hypsicephalic type,metriocephalic type(breadth-height index of the head) mesorrhiny,long trunk,subbrachyskelic type,broad shoulder breadth,and narrow distance between iliac crests were higher than those of other types.Finally,principal component analyses showed that the physical characteristics of Hakka were between those of South-Asian and North-Asian ethnic populations,but were generally closer to those of North-Asian populations in China. 展开更多
关键词 SOMATOSCOPY ETHNICITY HAKKA China
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