认识神秘的天体--黑洞

1915年爱因斯坦广义相对论的建立,预言了黑洞的存在,许多科学家对其展开了研究。科学家们认为黑洞是天体塌缩形成的超致密区域(包括光在内的任何物质都不能从该区域逃逸)。虽然我们现在称作黑洞的概念可以回溯到200多年前,但是“黑洞”这个名字是晚到1967年才由美国物理学家约翰·惠勒提出来的。具体黑洞概念的提出,翻开了人类对天体研究的新的一页。短短几十年,黑洞一直成为天体物理学家研究和讨论的热点,形成了黑洞物理学。     

吸附—催化氧化法处理造纸黑液

本文研究了以活性炭为吸附剂和催化剂,空气为氧化剂,吸附催化氧化处理造纸废水中有机污染物的可能性。并对反应温度,反应时间及PH值等影响废水处理效率的因素进行了探讨。在活性炭用量一定、温度稍高,PH值较低等条件下,该法COD去除率达89％以上,同时还进行了静态吸附对照试验。     

现代主义文学的荒诞体验及其历史嬗变

在西方现代主义文学发展的近百年历史上,荒诞体验一直伴随着作家的创作。荒诞体验是人对自身生存处境的一种感悟,它随着人的物化的日益加深而变得越来越强烈。如果说,以卡夫卡为代表的第一代现代主义作家对人的荒诞性感到惊诧不已,存在主义作家试图通过抵抗来摆脱荒诞感;那么,以荒诞派戏剧和黑色幽默小说为代表的后现代主义作家则已经认同和接受了荒诞的现实,他们所能做的,仅仅只剩下等待和调侃。     

浅谈黑白装饰画

黑白装饰画,是以黑、白对比为造型手段,画面主题以黑、白形体的巧妙组合来得以充分表现,具有高度概括的艺术特色。黑白装饰画的空间表现、造型特征、表现方式具体体现在用黑白构成的外在形式美,灵活运用点、线、面多种形式的表现方式,使画面黑、白、灰变化丰富,虚实层次错落有致以及黑白艺术效果单纯、明朗、强烈,自然带有强烈浪漫主义色彩和抒情性。     

‘Listen to the voice of reason’: the New Orleans Tribune as advocate for public,integrated education

The New Orleans Tribune (1864–1870), the first black daily newspaper in the United States, was the singular text in the public South at its time to staunchly advocate for public, integrated education, anticipating the ruling of Brown v. Board of Education, and arguing that separate education would always be synonymous with unequal education and would reinforce the mark of inferiority already placed upon blacks by slavery. This article argues that the Tribune grounded its argument against segregated education in logos-centred rhetoric that focused specifically on combating the dominant discourse of white supremacy and black inferiority embedded in the emerging ideology of scientific racism. The Tribune defended against the divisive rhetoric of the newly forming eugenics movement and instead posed public, integrated education as a necessary prerequisite to rebuilding a nation destroyed by the Civil War.     

美国黑人文化的“现代神话”--试论托尼?莫里森作品的象征手法

托尼·莫里森是美国当代最重要的黑人女性小说家之一。她的文学创作主要表现黑人求生存和自由的奋斗历程,黑白种族间的矛盾冲突,以及自我身份的确认。莫里森在作品中成功地运用魔幻现实主义的象征手法,使作品蒙上一层神秘的色彩。     

黑色的土地——浅论新文学三十年乡土小说的色调

新文学三十年乡土小说呈现出鲜明的黑色主色调,这种色调折射出乡土中国的现实状态和知识分子的思想状态.首先它呈现着中国乡民面对永无完结的苦难时,潜在或表现出的复仇情绪;又是书写乡土的知识分子们反思愚昧、颟顸而义顽固、强大的乡土中国时,对文化顽疾和国民劣根所流露出的深刻绝望;在文笔清淡的作家那里,也未能荡尽黑色的隐忧,那是一种对人性和人类命运饱含深情的思考和关怀.     

Mind the (tax) gap: an ethnography of a number

This article looks carefully at the making of the tax gap as a calculative practice at the Swedish Tax Agency. It points to the challenges with assessing tax gap numbers and reveals examples of its careless usage by various stakeholders in Swedish society in order to impact the discourse on tax compliance. Based on an ethnographic study of documents, it is an example of a number that performs a dual function: on the one hand mobilizing people’s morals and subsequent commitments and on the other hand measuring such commitments. On a more general level, the tax gap is an example of how a number that describes a complicated reality is calculated with many caveats attached to it, yet used with certainty in society. I thus challenge the metaphor of the ubiquitous ‘black box’. The Swedish tax gap number is a calculated device and can be unpacked as a specific number. But if we think about what a tax gap ought to contain, we have to think outside the box and beyond: what was not included in the published tax gap number and why there was no room for it.     

中国鸡蛋价格波动预警研究

鸡蛋价格预警模型的构建中需要注意其生长周期及季节特征,并考虑通货膨胀因素。基于中国鸡蛋价格的波动特征,宜用黑色预警模型构建其预警系统;预警系统中,选择鸡蛋价格波动率作为警情指标,以物价原则划分警限,根据ARIMA模型对鸡蛋价格的预测结果进行警度预报。预警结果显示,2011年中国鸡蛋价格波动将会比较剧烈,警情较为严重,需要消费者、生产经营者及相关部门关注,以便能及时采取有效措施规避风险,稳定鸡蛋市场。     

关于我国足球“假赌黑”现象的探讨——以2009年中国足坛扫赌反黑风暴事件为视角

以2009年中国足坛扫赌反黑风暴事件为视角,并结合我国足坛历年来的假赌黑事件,对我国足球假赌黑发展过程及成因进行了深入研究。结果表明：中国足球假赌黑的形成受多方面因素的影响,其不单单是足球管理体制的问题,更是社会主义市场经济发展过程中各方面因素综合作用的结果。