云网融合是云计算技术与通信网的结合,即在通信网络中引入云计算,以及在云计算中引入通信技术,也可称为云的网络化或网络的云化,而两者融合的核心便是传输网络架构.本文首先对传输网络架构进行分析,并基于云网融合背景,从发展路径、叶脊网络架构、融合承载架构、OTN网络架构、新型城域网五个方面对其传输网络架构进行研究,以供相关人员参考.

岁暮冬寒.冬日的夜晚,一夜漫长过一夜,婆婆离开我们三十五天了.整理五月份家庭笔会的图片和影像,诸多情境,恍若昨日. 那是五一小长假第三天的上午,春日的阳光温暖和煦.长白山宾馆秋实厅,近三百平方米的大厅里挂满了以公婆为主的全家人的书画作品,厅正中间悬挂着"庆祝建党一百周年家庭笔会"的横幅,入门处有公公为笔会撰写的前言.卧床三月余的公公也来到了笔会现场,不仅新创作了数幅书法作品,甚至已不需要轮椅……

随着"一带一路"倡议驱动的全球化3.0时代的到来和"21世纪数字丝绸之路"的提出,加之互联网、云计算和区块链等新技术的迅猛发展,数字经济已成为引领"一带一路"经贸合作的重要引擎并释放出巨大潜能.本文认为,数字经济下"一带一路"税收征管在面临新机遇的同时,也存在一定的问题,应筑牢数字经济下"一带一路"税收征管思维,强化数字治税理念;完善数字经济下"一带一路"税收征管制度协调,加强税收征管合作;强化"一带一路"沿线国家(地区)跨境税源管理,加强税收风险防范.

新古典主义时代广为赞扬的镜子理论所催生出来的普遍人性既是那个时代的要求,也是莎士比亚戏剧艺术人物塑造的一大特色.他笔下的人物往往充满矛盾,体现出一种两面性.这样的人物成为莎士比亚戏剧的一道风景和一大特色.其中的代表性人物有哈姆雷特、奥瑟罗、麦克白、夏洛克、亨利王子.从马克思主义理论中的辩证法原理出发,可以发现这些人物的两面性或多面性.从弗洛伊德的意识分区来看,每个人的身上都含有天使代表的超我原则的善,魔鬼代表的快乐原则的恶,以及二者之间此消彼长的波动.这样可以显示矛盾的特殊性与普遍性,以及二者之间体现出来的生动的辩证法,表明莎士比亚的艺术符合马克思主义关于辩证法的运行原理.

美国现代作家杰罗姆·大卫·塞林格创作的小说《麦田里的守望者》讲述了十六岁少年霍尔顿从迷茫到成长的故事.这部小说不仅是一部关于青少年迷茫和成长的小说,也是一部对20世纪50年代美国社会进行无情揭露和批判的作品.塞林格在这部作品中创造出霍尔顿心中以"麦田"为代表的象征空间与法国哲学家福柯的"异托邦"理论有着高山流水般的契合.探索这部小说中存在的以"麦田"为象征的"异托邦"空间,及其对社会常规空间中权力流动的映射和批判,揭示常规空间中主流话语权力对人的"规范化"改造,从而使人丧失了主体地位而成为权力所压抑的对象.主人公霍尔顿正是以"异托邦"的视域看到了常规空间的真实面貌,从而完成了从空间边缘人到"异托邦""守望者"的身份转变.

Dibei gas condensate field is a fractured tight sandstone reservoir located in the Kuqa depression of YiQiKeLiKe thrust belt, in the northern margin of Tarim Basin, China. We always take reservoir stimulation to improve the well productivity for tight sandstone reservoir. But reservoir stimulation did not reach the expectation value for this area. This paper will provide a case study on stimulation operations of a special well in Dibei gas condensate field. Study well has a high productivity after nitrogen drill. But the production dropped to half after water-based drill. To remove the damage due to drill mud, this well was stimulated three times using acidizing, acidizing fracturing, and hydraulic fracturing. But the productivity was lower and lower after simulation operations. We will describe the process of every operation in detail. The causes of the reductions in productivity will be analyzed comprehensively through experimental tests and comparative analyses. The experiments results show that water blockage and solids invasion of mud are the basic reasons for the sharp reduction in productivity of the well. Acidizing fracturing can remove the damage induced by mud. After a period of workover, solids of mud invaded into natural fractures deeply. In addition,the complex stimulation fluids made the illite particles migration to plug the pore throats. For hydraulic fracturing, water-based hydraulic fluid which made the formation suffers lethal damage. Hydraulic fracturing not only cannot break out the deep damage zone, but also cause more serious damage to reservoir. The production logging test results also show that the formation damage induced by water blockage can reduce the production capacity by more than 40%. Nowadays, reservoir stimulation is still an effective method to improve productivity of well for tight sandstone reservoir. This paper represents a detail introduction of failure case and comprehensively analyzes the causes of these failures from experiments to field. And it also gives a lesson for avoiding this kind of failure and optimizing stimulation design in tight gas condensate to achieve efficiency.

Abstract Wells in kuqa foreland area of Tarim Basin are mostly ultra-deep and HTHP wells. The well depths vary from 6000 m to 8000 m. The reservoir temperature and pressure are between 135-180℃, 100-135MPa respectively. Coiled tubing was introduced to conduct the down-hole operations in this field. Through improvements of many technologies, six operations were successfully conducted and operating time was saved by more than 50%. CT operations in HTHP wells were made available by carefully evaluating and selecting the proper CT assembly and operating parameters. A standardized modeling workflow was established, including force analysis, hydraulic analysis and fatigue analysis, to systematically evaluate the operation, and then optimize the CT assembly, the wellhead equipment, the operating parameters, etc. A real-time CT detector was also developed to monitor the properties of CT while operating. Besides, a series of on-site operation criteria were established to control the process of CT operations. With these modeling, optimizing and monitoring technologies, CT operations were firstly tried in ultra-deep wells in the basin area of Tarim Basin, whose well depths are more than 6000m but with normal pressure and temperature systems. Drilling and milling, acidizing, jet perforating, and staged proppant fracturing were all realized in these wells. Well YM704, with down-hole pressure of 82MPa and down-hole temperature of 148℃, was acid pickled with CT at vertical depth of 7287m. Afterwards these technologies were introduced to kuqa foreland area, where the wells are mostly HTHP gas wells. Six down-hole operations have been tried and only minor troubles occurred. Well KS2-2-12, whose down-hole pressure is 102MPa and down-hole temperature is 160℃, was sand flushed by CT at the depth of 6182m, and a 46m sand plug in the wellbore was cleaned out. Well DB101-1, with down-hole pressure of 92MPa and down-hole temperature of 130℃, was conducted workover by CT. CT was run to 5373m and successfully drilled and milled the bridge plug. By using CT operations in these wells, more than 50% of the operation time was saved. CT has been proved to be an efficient tool for down-hole operations. It can reduce the cost of operations significantly. However, the use of it was restricted to conventional wells. This paper introduces trials of CT operations in ultra-deep and HTHP wells, providing a reference for CT operation design in tough conditions. Resistance of running in hole was also encountered occasionally, but it is hopefully to be avoided by optimizing run-in modeling.

与纸质档案不同,电子档案会出现如病毒侵犯、资料篡改等问题,故电子档案应有更严格的安全管理.只有了解档案管理中存在的问题才能采取适当措施加强电子档案的安全管理.本文通过简要说明电子档案信息安全管理的必要性,探究电子档案管理过程中存在的问题,说明提高电子档案信息安全管理的措施,以作为档案管理工作者的参考.

一、PCK的概念界定 学科教学知识(简称PCK)是在上世纪80年代西方教师专业化运动中,为提高教师专业标准化,由斯坦福大学教授舒尔曼(Shulman)针对当时美国教师资格认证制度提出来的一个重要概念,他认为 PC K 的定义包括两方面的内容 :(1)学生如何学习某学科的知识 ;(2)教师如何教授该学科的知识.范德瑞尔教授认为,这应该是PCK 定义的核心.然而,某些学者提出,除了舒尔曼提出的两方面知识,PCK 还应包括关于学生如何学习的知识、学习中会遇到哪些困难的知识、教师的教学策略的知识等等.

《地心引力》无疑是一部展现太空的美丽和危险的极致影片.三名演员,加上无比壮丽的地球和太空景色,构成了这部影片的全部画面.影片的故事构架其实并不复杂,三名宇航员在舱外修理哈勃望远镜时,遭遇前苏联卫星碎片雨的袭击,一名宇航员当即毙命.另外由桑德拉·布洛克和乔治·克鲁尼扮演的两名宇航员奋力自救.最终,桑德拉·布洛克扮演的宇航员乘坐中国神舟救生舱成功逃生.最后一个画面是她从坠落在湖中的救生舱逃出后,重新站在了地球的土地上.影片到此戛然而止.

Critical Discourse Analysis(CDA),bringing insight into the relations between language use,ideology and power,is a typical tool of the analysis of political discourse and news discourse. Based on the traditional CDA,Multi-modal CDA not only paid attention to messages literal words convey,but also focused on the pictures,voice,video, etc. Taking the CDA as the guiding theory,this paper focuses on the semantics of two cover images of the Economist, hoping that the hidden opinions and thoughts of the author will be discovered. Besides,it will be more easily for readers to have a deeper understanding of the articles if the correspondent images are comprehensively interpreted.

La civilisation chinoise est généralement comparée à un monolithe ayant traversé les âges. Elle jouit d’une grande réputation et se caractérise elle-même par une idéologie holiste. Cette vision synoptique implique incidemment une notion de groupe, c’est-à-dire qu’existerait à travers l’espace et le temps un immense ensemble humain identifié par sa « sinité ». Cette thèse s’interroge sur les éléments et les étapes historiques de la construction de la nation contemporaine chinoise. Elle cherche à discerner précisément le moment où ce groupe commence à se percevoir en tant que tel et à comprendre les motifs sous-jacents à sa fondation consciente et volontaire. Afin de mettre en lumière les identités chinoises, cette étude anthropologique du politique brise les barrières des définitions, articule les différentes notions de groupe, et use d’une comparaison entre perspectives historiques de groupe de la France et de la Chine. Animée par l’ambition de s’émanciper de schémas interprétatifs parfois trop stéréotypés à l’égard de l’histoire et des politiques contemporaines chinoises et en vue d’en proposer une compréhension renouvelée, cette entreprise analytique porte une attention accrue sur la conscience d’appartenance au groupe.

As so far the only one with the international standard of field bus , CAN bus has been widely used in our coun-try .Because of its in data communications , has a good reliability , real-time and flexibility , the domestic many scientific research institutions are applying CAN bus to agricultural vehicles in each system .Agricultural vehicle serial communica-tion network international standard ISO 11783 is the application of CAN bus network protocol .In order to understand the application of the standard , this paper introduces the CAN bus , ISO11783 standards and both packet format .And based on CAN bus and ISO 11783 standards have parsed the tractor field work data .

近期听过南大数学系教授罗亮生先生的讲座后，对于用数学逻辑思维来思考中国传统文化的利与弊问题，和对中国传统文化中我所认识到的，传统文化中“传统的就是吉祥的”那一种既定的民族风的堆砌思想产生巨大的震动。罗教授在讲座开始就提出了我所从未涉及到的问题：为什么中国人对现代文明贡献几乎为零？还提出了四大发明为什么只是停留在文盲阶段的认识这一层面。