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Entropy of Dirac Field in Non-stationary and Slowly Changing Reissner-Nordstrom Black Hole

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Communications in Theoretical Physics 2005年第5X期44卷 955-960页

作者： LI Hui-Ling YANG Shu-Zheng jiang qing-quan Institute of Theoretical Physics China West Normal University Nanchong 637002 China

Using the thin film brick-wall model and WKB approximation, the entropy of the Dirac field in the non-stationary and slowly changing Reissner-Nordstrom (R-N) black hole is calculated. The result shows that the entropy... 详细信息

关键词： slowly changing thin brick-wall model Dirac field entropy of black hole

Hawking Radiation of Charged Particles via Tunneling from a Cylindrically Symmetric Black Hole in Anti-de Sitter Space-Time

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Communications in Theoretical Physics 2006年第4X期46卷 643-646页

作者： YANG Shu-Zheng jiang qing-quan LI Hui-Ling Institute of Theoretical Physics China West Normal University Nanchong 637002 China

Applying Parikh-Wilzcek＇s semi-classical quantum tunneling model, we study the Hawking radiation of charged particles as tunneling from the event horizon of a cylindrically symmetric black hole in anti-de Sitter space-time. The derived result shows that the tunneling rate of charged particles is related to the change of Bekenstein-Hawking entropy and that the radiation spectrum is not strictly pure thermal after taking the black hole background dynamical and self-gravitation interaction into account, but is consistent with the underlying unitary theory.

关键词： cylindrically symmetric black hole Bekenstein-Hawking entropy energy conservation charge conservation tunneling rate

quantum Tunneling Radiation of Reissner-Nordstrom de Sitter Black Hole with a Global Monopole

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Communications in Theoretical Physics 2006年第3期45卷 457-460页

作者： jiang qing-quan YANG Shu-Zheng LI Hui-Ling Institute of Theoretical Physics West China Normal University Nanchong 637002 China

Applying Parikh＇s quantum tunneling model, we study the quantum tunneling radiation of Reissne- Nordstrom de Sitter black hole with a global monopole. The result shows that the tunneling rates at the event horizon and the cosmic horizon are related to Bekenstein-Hawking entropy if we take the energy conservation into consideration, and the true radiate spectrum is not precisely thermal.

关键词： Reissner-Nordstrom de Sitter black hole global monopole energy conservation tunneling rate

New Form of Kerr-Newman Solution and Its Hawking Radiation via Tunneling

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Communications in Theoretical Physics 2006年第6X期46卷 1001-1004页

作者： jiang qing-quan WU Shuang-qing YANG Shu-Zheng CHEN De-You Department of Physics Central China Normal University Wuhan 430079 China Institute of Theoretical Physics China West Normal University Nanchong 637002 China

Parikh-Wilzcek＇s recent work, which treats the Hawking radiation as semi-classical tunneling process from the event horizon of static Schwarzshild and Reissner-Nordstroem black holes, indicates that the factually radiant spectrum deviates from the precisely thermal spectrum after taking the self-gravitation interaction into account. In this paper, we extend Parikh-Wilzcek＇s work to research the Hawking radiation via tunneling from new form of rotating Kerr-Newman solution and obtain a corrected radiant spectrum, which is related to the change of Bekenstein-Hawking entropy, and is not pure thermal, but is consistent with the underlying unitary theory. Meanwhile, we point out that the information conservation is only suitable for the reversible process and in highly unstable evaporating black hole （irreversible process） the information loss is possible.

关键词： Kerr Newman black hole tunneling rate Bekenstein-Hawking entropy

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通信网络能耗分析与节能技术应用

中南大学学报（自然科学版） 2009年第2期40卷 464-470页

作者：蒋青泉华中科技大学电子与信息工程系湖北武汉430074 长沙通信职业技术学院湖南长沙410015

针对通信网络能耗特点及环境条件,根据通信设备、电源和基站的能耗现状,分析通信网络的能耗分布及节能潜力,提出通信网络节能降耗的途径与措施。以此为基础,提出并设计通信机房新风节能改造方案和移动通信基站综合节能解决方案。运用定... 详细信息

针对通信网络能耗特点及环境条件,根据通信设备、电源和基站的能耗现状,分析通信网络的能耗分布及节能潜力,提出通信网络节能降耗的途径与措施。以此为基础,提出并设计通信机房新风节能改造方案和移动通信基站综合节能解决方案。运用定性比较评估方法,对该方案在中国电信、中国移动等通信运营企业实际应用的节能效果进行科学测量统计。应用试验结果表明:通信运营商有效控制管理能耗,在实现信息化、精确化管理基础上,因地制宜采用节能技术,建设节能型通信网络,有利于通信网络的节能减排与可持续发展,保证通信网络可靠、高效运行,降低资本开支和运营开支。

关键词：通信网络能耗节能

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Kerr解的新形式及其隧穿辐射

物理学报 2006年第9期55卷 4428-4432页

作者：蒋青权吴双清华中师范大学物理科学与技术学院西华师范大学理论物理研究所南充637002

Parikh最近将黑洞辐射视为半经典的隧穿过程,在考虑了自引力相互作用后,得出静态球对称Schwarzschild和Reissner-Nordstrm黑洞的辐射谱不是纯热谱.采用Doran给出的Kerr黑洞解的新形式,将Parikh的工作推广到Kerr黑洞,研究转动黑洞的隧穿... 详细信息

Parikh最近将黑洞辐射视为半经典的隧穿过程,在考虑了自引力相互作用后,得出静态球对称Schwarzschild和Reissner-Nordstrm黑洞的辐射谱不是纯热谱.采用Doran给出的Kerr黑洞解的新形式,将Parikh的工作推广到Kerr黑洞,研究转动黑洞的隧穿辐射,得到了修正的辐射谱,它与黑洞的Bekenstein-Hawking熵变有关,不是纯热谱,但满足量子力学中的幺正性原理.

关键词： Kerr黑洞隧穿辐射自引力修正 Bekenstein—Hawking 熵

对Reissner-Nordstrm-anti-de Sitter黑洞Hawking隧穿辐射的研究

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物理学报 2007年第6期56卷 3083-3087页

作者：蒋青权吴双清蔡勖华中师范大学物理科学与技术学院武汉430079

在考虑粒子间的自引力相互作用后,首先采用Parikh-Wilczek的半经典隧穿方法对带电粒子与不带电粒子在Reissner-Nordstrm-anti-de Sitter黑洞视界处的隧穿辐射特征进行了研究.其次,推广复路径方法对该黑洞的辐射谱进行研究.两种方法所... 详细信息

在考虑粒子间的自引力相互作用后,首先采用Parikh-Wilczek的半经典隧穿方法对带电粒子与不带电粒子在Reissner-Nordstrm-anti-de Sitter黑洞视界处的隧穿辐射特征进行了研究.其次,推广复路径方法对该黑洞的辐射谱进行研究.两种方法所得的结果都支持Parikh-Wilczek的观点,即黑洞的隧穿率Bekenstein-Hawking熵变有关,真实的辐射谱不是纯热谱.

关键词：带电黑洞隧穿率自引力修正复路径法

Clinical and pathological features and surgical treatment of Budd-Chiari syndrome-associated hepatocellular carcinoma

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Chinese Medical Journal 2013年第19期126卷 3632-3638页

作者： WANG Ya-dong XUE Huan-zhou ZHANG Xiao XU Zong-quan jiang qing-feng SHEN quan YU Miao LIKe JIA Meng Department of Hepatopancreatobiliary Surgery People's Hospital ofZhengzhou University Zhengzhou Henan 450003 China

Background Budd-Chiari syndrome （BCS） is characterized by liver sinusoidal congestion,ischemic liver cell damage,and liver portal hypertension caused by hepatic venous outflow *** aim of this research was to investigate the clinicopathological features of BCS-associated hepatocellular carcinoma （HCC） and explore its surgical treatment and *** Clinical data from 38 patients with BCS-associated HCC who were surgically treated in our hospital from July 1998 to August 2010 were retrospectively *** clinicopathological features and prognosis of patients with BCS-associated HCC and surgical treatment for BCS-associated HCC were *** Compared to the patients with hepatitis B virus （HBV）-associated HCC,the patients with BCS-associated HCC showed a female predominance,and had significantly higher cirrhosis rate,higher incidence of solitary tumors,lower incidence of infiltrative growth,higher proportion of marginal or exogenous growth,lower rate of portal vein invasion,and higher degree of *** survival was longer in patients with BCS-associated HCC （76 months） than in those with HBV associated HCC （38 months）.Of 38 patients with BCS-associated HCC,22 patients who received combined surgery mainly by liver resection plus cavoatrial shunts exhibited hepatic venous outflow constriction relief,while the other 16 patients only underwent liver *** combined surgery group had significantly longer survival and lower incidences of post-operative lethal complications （P 〈0.05）.Multivariate analysis showed that relief of hepatic venous outflow obstruction was a protective factor for survival of patients with BCS-associated HCC,whereas portal vein invasion was a risk *** BCS-associated HCC has a more favorable biological behavior and prognosis than HBV-associated *** patients with BCS-associated HCC,tumor resection accompanied with relief of hepatic venous outflow obstruction can reduce the i

关键词： Budd-Chiari syndrome hepatocellular carcinoma surgical treatment prognosis

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固网智能化增值业务技术方案的应用

湖南师范大学自然科学学报 2008年第4期31卷 35-39页

作者：蒋青泉长沙通信职业技术学院中国长沙410015

针对固网智能化的技术特点及市场意义,并结合电信企业的业务与服务转型,提出固网智能化增值业务的解决方案.它借鉴移动通信网络架构的优势,在现有固定通信网中引入SHLR新网元,屏蔽交换机功能的差异性,实现全网用户数据集中管理、用户号... 详细信息

针对固网智能化的技术特点及市场意义,并结合电信企业的业务与服务转型,提出固网智能化增值业务的解决方案.它借鉴移动通信网络架构的优势,在现有固定通信网中引入SHLR新网元,屏蔽交换机功能的差异性,实现全网用户数据集中管理、用户号码可携带、用户签约智能业务的自动识别和自动触发,从而增强固定通信网提供增值电信业务的能力.结果表明:固网智能化改造消除了固网开展增值业务的技术局限性,实现智能业务的全网触发.由此证明,该技术方案为PSTN创造了新的发展空间,能够快速、低成本面向全网用户提供固网预付费、固网彩铃等增值业务.

关键词：固定通信网智能化增值业务 SHLR