霍金的黑洞理论观及因果性思想浅析

自然科学对黑洞的研究已经取得了长足的进展，当代科学大师史蒂芬·霍金（Stephen．William、Hawking）就是这个领域有突出贡献的科学家之一，虽然黑洞的存在与否至今尚未确证，但霍金对黑洞的理论研究的意义已经超出了物理学和天文学的范围，揭示出一些涉及物理学和哲学基本观念的问题。     

Camera traps reveal use of caves by Asiatic black bears (Ursus thibetanus gedrosianus) (Mammalia: Ursidae) in southeastern Iran

The Baluchistan region of Iran and Pakistan is inhabited by one of the most threatened populations of Asiatic black bears (Ursus thibetanus gedrosianus) in Asia. The first camera-trapping survey of these so-called Baluchistan bears was conducted in Bahr-e Asman Mountain, southeastern Iran. Fourteen camera traps were installed in the entrances of caves from April to December, 2009. A total of 32 bear photographs were obtained from three caves. Data analysis of photographs showed the presence of at least seven different individuals: two lone bears, and two family groups, with one and two cubs. Despite being very marginal habitat, affected both by human use and drought, the area supports a reproducing population of bears. This study suggests that caves may be important in the life history of these bears, and should be protected for their conservation.     

三部黑人文学作品中的存在主义哲学

通过对三部里程碑式的黑人文学作品——《土生子》《看不见的人》《所罗门之歌》——中的存在主义哲学思想的分析,比较三部作品中黑人为寻求自我本质所作出的努力,揭示存在主义哲学对黑人文学的深刻影响。     

500AMeV^56Fe＋Em相互作用中产生的靶核碎片研究

高能核一核碰撞中靶核和射弹核的碎片分布，是研究核碎裂机制的重要方面．通过对500AMeV^56e与原子核乳胶相互作用产生的靶核碎片的角分布的测量，可以发现重靶AgBr的黑粒子的发射角关于90°方向近似对称，即表明在90°方向存在侧向流．我们知道黑粒子是从激发的剩余靶核蒸发出来的，从流体力学模型的角度上来看，侧向流产生原因可能是弹核旁观体的弹出与弹核参加者产生侧向集体流造成了靶核旁观体向相反方向运动，从而在接近90°的方向上产生靶核碎片集体流．     

静态球对称精质包围的Reissner—Nordstrom黑洞的熵

从标量粒子满足的克莱因-高登方程出发，利用薄膜模型方法计算精质包围的Reissner—Nordstrom（R—N）黑洞的熵。薄膜模型的应用，克服了原始砖墙模型中的小质量近似和对数项忽略等不自然的操作。计算结果表明，该黑洞的熵是黑洞视界面积和宇宙视界面积之和的1／4。可见，精质包围的Reissner—Nordstrom黑...     

反转片扫描工艺流程分析

反转片是书画印刷中应用最多的原稿之一，反转片的扫描是书画印刷的基础工序，扫描质量的高低决定印刷质量的好坏。通过重点分析反转片扫描前期准备、注意事项以及扫描工艺流程，包括上稿前准备、黑白场定标、预扫、正式扫描等，以期在业内能有所启示和借鉴。     

源自永恒的黑土情结——冯延飞及他的文学创作

近些年,以农村生活为题材的吉林电视剧一路走红。一些名不见经传的东北剧作家也随之一同走入了人们的视野,冯延飞就是随着《美丽的田野》、《希望的田野》在央视的热播而家喻户晓的。他在作品中对白山黑水之韵的永恒书写,源自他永恒的黑土情结。     

亚洲黑熊幼体眼球切除一例

野生动物的疾病预防和治疗对野生动物工作者来说是个逐步认识和积累经验的过程,在这个领域很少有经验可以让你借鉴和参考,对黑熊的眼球切除来说更是很少有相关报道。     

Conflicting and Harmonizing Between the Black Culture and the White Culture Embodied in Morrison''''s Works and Lecture

In Toni Morrison's works ,there seems to be an eternal theme——the cruelty of black American peoples' fate and the conflict between black culture and white culture. Black culture is in an inferior position for a long time. In Morrison's opinion,the blacks can only survive in the white -dominated world on condition that they hold their own cultural root. And on the other hand,there is another way people should seek,which is to realize tolerance and compatibility of the two cultures. In this speech,Morrison again expounded the relation between the two cultures and expressed her wish that black culture could be admitted and respected by the white people.