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我在运维晋能集团执法网项目时，首先是行政划分： 阅读全文
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零工经济 2015 年8月21 日， 《人民日报》发表了题为“'零工经济'（gig economy）挑战了谁”的文章。该文说，劳动力市场 （labor market） 正在经历着新的变化。越来越多的自由职业者（freelancer）进入劳动大军，通过在线平台（on-line platform）出租房... 阅读全文
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Chapter Summary1. The Database Management System (DBMS) is now underlying framework of the information system and has fundamentally changed the way in... 阅读全文
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Studying at collageIf you are at college, there will be a database system containing information about yourself, your major and minor fields，the cours... 阅读全文
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The history of database system research is one of exceptional productivity and startling economic impact.数据库系统研究的历史是重要成果之一，而且正在发挥着令人振惊的经济影响。Barely 20 ... 阅读全文
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Using Example 2.2, there are three different activities at the sender site and another three activities at the receive site.使用2.2示例，在发送端网址有三次不同的活动，同样，... 阅读全文
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Established in 1974, the International standards Organization (ISO) is a multi-national body dedicated to woldwide agreement on international standard... 阅读全文
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在协议层中，有两个故事，分享如下：Example 1Assue Maria and Ann are neighbors with a lot of common ideas.假设玛莉亚和安是邻居，且有许多共同的思想。However, Maria speaks only Spanish, and An... 阅读全文
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It is easy to see by formal-logical methods that exist certain [instruction sets] that are in abstract adequate to control and cause the execution of ... 阅读全文
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PerfaceThe most beautiful thing we can experience is the mysterious. It is the source of all true art and science.Albert Einsten, what I believe, 1930... 阅读全文