随着苹果公司推出App St ore这一运营模式以来,在线应用市场得到了飞速的发展,这不仅促进了移动互联网的发展,更加改变了移动增值业务的收入结构,推动了移动网络产业链的重新整合和完善。而我国正处于3G时代的发展阶段,如何更好更快的...随着苹果公司推出App St ore这一运营模式以来,在线应用市场得到了飞速的发展,这不仅促进了移动互联网的发展,更加改变了移动增值业务的收入结构,推动了移动网络产业链的重新整合和完善。而我国正处于3G时代的发展阶段,如何更好更快的进入并且抢占市场成为我国在线应用商店的首要问题。运用SWOT方法分析苹果公司AppSt ore的i Phone+App St ore的运营模式,为我国在线应用商店的发展提出有用建议。展开更多
The periodic variation of motion of 171Yb+ stored ion in a Paul r.f.trap is observed.The reason of which and its influence to the uncertainty and stability of stored ton frequency standard are going to be studied.
跨站脚本XSS(Cross Site Scripting)漏洞已经成为了大多数网站共同面对的Web安全问题,对XSS漏洞的有效预防检测有利于提高Web安全。分析XSS漏洞的攻击原理,指出现有动态分析方法在检测存储型XSS漏洞方面的不足,提出一种有效的存储型漏...跨站脚本XSS(Cross Site Scripting)漏洞已经成为了大多数网站共同面对的Web安全问题,对XSS漏洞的有效预防检测有利于提高Web安全。分析XSS漏洞的攻击原理,指出现有动态分析方法在检测存储型XSS漏洞方面的不足,提出一种有效的存储型漏洞动态检测方法。设计并实现了Stored-XSS漏洞动态检测模型,并在实际的场景下对该模型进行了测试评估,实验证明提出的方法能对存储型XSS漏洞进行有效检测。展开更多
Failure of a stored system can only be detected after inspection and its reliability can be resumed by replacement of failed components. A maintenance policy of combining periodic inspection and preventive replacement...Failure of a stored system can only be detected after inspection and its reliability can be resumed by replacement of failed components. A maintenance policy of combining periodic inspection and preventive replacement is proposed to improve its availability. To coordinate component replacement and spare provision,an ordering policy of (0,1) is considered jointly. Thus,the joint maintenance policy contains inspection,replacement and spare provision. A programming model based on the joint maintenance policy is established,whose objective function is average expected cost,containing maintenance cost and inventory cost,and the constraint is system availability. Applying renewal theorem,the performance indexes are deduced under the condition that the stored system obeys the common life distribution. Numerical examples are given for a stored system with two different units,where unit 1 probability degrades with time and unit 2 probability degrades at each test. The effect of reliability parameters on the policies is discussed. The results indicate that the joint policy is very close to the independent policy.展开更多
文摘随着苹果公司推出App St ore这一运营模式以来,在线应用市场得到了飞速的发展,这不仅促进了移动互联网的发展,更加改变了移动增值业务的收入结构,推动了移动网络产业链的重新整合和完善。而我国正处于3G时代的发展阶段,如何更好更快的进入并且抢占市场成为我国在线应用商店的首要问题。运用SWOT方法分析苹果公司AppSt ore的i Phone+App St ore的运营模式,为我国在线应用商店的发展提出有用建议。
文摘The periodic variation of motion of 171Yb+ stored ion in a Paul r.f.trap is observed.The reason of which and its influence to the uncertainty and stability of stored ton frequency standard are going to be studied.
文摘跨站脚本XSS(Cross Site Scripting)漏洞已经成为了大多数网站共同面对的Web安全问题,对XSS漏洞的有效预防检测有利于提高Web安全。分析XSS漏洞的攻击原理,指出现有动态分析方法在检测存储型XSS漏洞方面的不足,提出一种有效的存储型漏洞动态检测方法。设计并实现了Stored-XSS漏洞动态检测模型,并在实际的场景下对该模型进行了测试评估,实验证明提出的方法能对存储型XSS漏洞进行有效检测。
基金Sponsored by the National Nature Science Foundation of China (60674085)
文摘Failure of a stored system can only be detected after inspection and its reliability can be resumed by replacement of failed components. A maintenance policy of combining periodic inspection and preventive replacement is proposed to improve its availability. To coordinate component replacement and spare provision,an ordering policy of (0,1) is considered jointly. Thus,the joint maintenance policy contains inspection,replacement and spare provision. A programming model based on the joint maintenance policy is established,whose objective function is average expected cost,containing maintenance cost and inventory cost,and the constraint is system availability. Applying renewal theorem,the performance indexes are deduced under the condition that the stored system obeys the common life distribution. Numerical examples are given for a stored system with two different units,where unit 1 probability degrades with time and unit 2 probability degrades at each test. The effect of reliability parameters on the policies is discussed. The results indicate that the joint policy is very close to the independent policy.
