茶味人生

一片茶叶要经历多少风雨,忍受多少煎熬,才能百炼成茶?人的生命曲折往复,犹如这杯中茶叶,无声舒展,淡然收尾,沉静,清苦,那味蕾上的涩涩清香,是生命的滋味,亦是茶的原味。一片茶叶,看起来如此纤弱,直到放入杯中,与水融合,绽放出清香。然而,就在茶叶与沸水相融,热烈舞蹈的时刻,人们的目光往往忽视了茶的实质,反而注意那杯中之水了。在浩瀚的岁月中,人的生命何其短暂,有多少人真能及得上一片小小的茶叶,释放出人生的光芒?在生命的过程中,有多少     

论教师在新课程背景下的角色定位

随着新一轮基础教育课程改革的全面实施,教师的角色发生了重大的转变.教师应提高认识,创造条件,认真履行好学习的促进者,言传身教的示范者,集体活动的组织者,心理健康的维护者,人际关系的协调者,课程的开发者,教育教学的研究者,终身学习者等多重角色职能.要实现角色转变,必须加强自我更新和培训.     

快乐源于平和

每个人的一生,常伴随着喜怒哀乐,品味着酸甜苦辣,难免遭受一些冲突、刺激、波折,让你无法不生气。亲人间的内耗,朋友无意的伤害,同事的误解,世人的冷漠,恶人的攻击,总会让你激愤难禁、怒气横生。甚至,自己工作的差错,事业的失败,感情生活的波折,家庭生活的矛盾,也都会使自己生气懊恼、黯然神伤。然而,生气愤怒又有何用?不只无助于问题的解决,也给自己带来强烈的精神冲击。其实,生气是健康的潜在杀手,是用他人的过错来惩罚自己。一时的冲动怒气,常会诱发更为严重的事端,甚至断送你的前程,毁掉你的事业,从此打破你宁静安乐的生活。     

黄河流淌着对贪官的恨

公元前一三二年,是中国历史上的灾年。这年的春季,肆虐的黄河在河南清丰县的顿丘决口,裹着大量泥沙的河水向东南方向奔泻,所到之处,生灵涂炭……夏季,黄河流经的河南濮阳瓠子决口,裹着大量泥沙的黄泥汤,同时裹着数不清的砖瓦人畜,直扑泗水、淮水……一泻千里的黄河水,淹没了山东南部、江苏和安徽北部,以及河南东部的十六个郡,其面积之大,相当于如今的海南岛。     

青年：不要把欲望当做志气

 上周上课时,课间给学生们谈点乱弹琴,提到梁漱溟的一段话,是关于欲望与志气的关系的,这段话虽然说在几十年之前,放在今天,尤其是各种五颜六色的选择很多的时候,似乎更具有现实意义。梁漱溟在《朝话：人生的省悟》一书中是这么说的：在这个时代的青年,能够把自己安排对了的很少。在这个时代,有一个大的欺骗他,或耽误他,容易让他误会,或让他不留心的一件事,就是把欲望当志气。这样的用功,自然不得其方。也许他很卖力气,因为背后存个贪的心,不能不如此。可是他这样卖力气,却很不自然,很苦,且难以长进。虽有时也会起一个大的反动,觉得我这样是干什么？甚或会完全不干,也许勉强干。但当自己勉强自己时,读书做事均难入,无法全副精神放在事情上。甚且会自己搪塞自己。越聪明的人,越容易有欲望,越不知应在哪个地方搁下那个心。心实在应该搁在当下的。可是聪明的人,老是搁不在当下,老往远处跑,烦躁而不宁。所以没有志气的固不用说,就是自以为有志气的,往往不是志气而是欲望。仿佛他期望自己能有成就,要成功怎么个样子,这样不很好吗？无奈在这里常藏着不合适的地方,自己不知道。自己越不宽松,越不能耐,病就越大。所以前人讲学,志气欲望之辩很严,必须不是从自己躯壳动念,而念头真切,才是真志气。张横渠先生颇反对欲望,谓民胞物与之心,时刻不能离的。自西洋风气进来,反对欲望的话没人讲,不似从前的严格,殊不知正在这些地方,是自己骗自己害自己。     

黑色的瀑布

说到瀑布,人们自然想起黄果树大瀑布,雄伟的气势,壮观的场面,真是无法言喻的美不胜收。然而,我更青睐黑色的瀑布,它不在隽美的大峡谷之中,也不在雄浑的山颠之下,而是在漆黑漆黑的矿井里。当你打开放煤大眼的闸门,刹那间,一条奔涌的黑色河流好像从天而降,像大瀑布一样,流入一辆辆矿车,流入窑哥们的心海里。每每看到它,一张张糙脸如同绽放的黑牡丹,心儿滋生了一种欢愉,一种自豪,眼里闪烁的尽是幸福的光芒。     

雕饰语言 文采飞扬——谈谈整句在作文中的妙用

在很多优秀作文中,整句的运用是十分突出的。或排比,或比喻,或反复,或古词的连用,或用特殊的句式联排,或段与段的整句对应等等,使得这些优秀作文多姿多彩,摇曳纵横,妙笔生花。那么,如何构建整句呢?(1)巧用修辞,构建整句,整句是指结构相同或相似的一组句子,其形式要整齐,声韵要和谐,气势要贯通,意义要鲜明。其实,构建整句     

理性的研究诗意的阐发 --康怀远先生《李白批评论》评介

在灿烂辉煌的唐诗星空里,李白无疑是最耀眼的一颗明星;在气象万千的中国诗歌长廊里,李白无疑是最精彩的一道风景;在波澜壮阔的中国文学长河里,李白无疑是最强劲的一道波浪.李白,这位千年诗仙,挟带着盛唐的泱泱气象,饱含着中国的煌煌气魄,高扬着民族的赫赫气度,走过了宋元,走过了明清,一直走到了近代、现代和当代;走出了中国,走出了亚洲,融入了世界文化宝库.     

非洲雄狮：曼德拉

“钟声响起归家的讯号,在他生命里,仿佛带点唏嘘,黑色肌肤给他的意义,是一生奉献,肤色斗争中,年月把拥有变做失去,疲倦的双眼带着期望,今天只有残留的躯壳,迎接光辉岁月,风雨中抱紧自由,一生经过彷徨的挣扎,自信可改变未来,问谁又能做到．可否不分肤色的界限,愿这土地里不分你我高低,缤纷色彩闪出的美丽,是因它没有分开每种色彩,年月把拥有变做失去,疲倦的双眼带着期望,今天只有残留的躯壳,迎接光辉岁月,风雨中抱紧自由……”     

风扇的发明

正琳琅满目的风扇给炎炎夏日带来了凉意,而它的发明过程却有些曲折风扇,顾名思义,就是能生风的"扇子"。它广泛应用在人们的生活中,给人们带来了极大的便利,然而,它的发明过程却有些曲折。1806年,詹姆斯·拜伦出生于一个美国的贫穷家庭,在很小的时候,父母就去世了,于是他和外公外婆一起长大。他的外公是一名烟囱维护工,谁家的烟囱堵了,便会找他疏通。这种工作不仅危险,而且辛苦,大多的时间外公就在烟囱里清理烟尘。1822年的一天,外公在清理一个工厂的烟囱时不慎掉了下来,失去了生命。拜伦难过极了,他便想,清理烟囱,主要是清理附着在烟囱壁上的烟尘,如果能发明一种能清理烟粉的东西,那人就不用再往烟囱里爬了,这样也就会安全了。     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

正~~     

An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.     

Tracking data management using topology of moving object database system for moving object constrained trajectory in LBS application

Advances in wireless technologies and positioning technologies and spread of wireless devices, an interest in LBS (Location Based Service) is arising. To provide location based service, tracking data should have been stored in moving object database management system (called MODBMS) with proper policies and managed efficiently. So the methods which acquire the location information at regular time intervals then, store and manage have been studied. In this paper, we suggest tracking data management techniques using topology that is corresponding to the moving path of moving object. In our techniques, we update the MODBMS when moving object arrived at a street intersection or a curved road which is represented as the node in topology and predict the location at past and future with attribute of topology and linear function. In this technique, location data that are corresponding to the node in topology are stored, thus reduce the number of update and amount of data. Also in case predicting the location,because topology are used as well as existing location information, accuracy for prediction is increased than applying linear function or spline function.