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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

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

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

Multiphase flow inside a four-strand continuous casting tundish using three types of ladle shrouds

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Journal of Iron and Steel Research International 2023年第6期30卷 1171-1181页

作者： jiang-shan Zhang Bang-ming Qin Yu-hong Liu quan-hui Li Xiao-tan Zuo Chao Wang shu-feng yang qing Liu State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China Research Institute Nanjing Iron and Steel Co.Ltd.Nanjing 210035JiangsuChina Wuhu Xinxing Ductile Iron Pipes Co. Ltd.Wuhu 241002AnhuiChina School of Advanced Engineering University of Science and Technology BeijingBeijing 100083China

Numerical and physical models have been built and validated to study the multiphase flow inside three ladle shrouds and a four-strand tundish.A conventional straight ladle shroud and two types of trumpet-shaped ladle shroud(TLS)have been comparatively *** maximum velocity at ladle shroud outlet reduces from 1.3 to 0.5 m/s,which indicates a quieter tundish *** is demonstrated that the use of a TLS can also decrease the maximum surface velocity from 0.16 to 0.13 m/s,which reduces the tendency of forming tundish open *** flow pattern and mixing behavior are improved inside the tundish,especially in enlarging the plug volume from 6.61%to 9.04%.The difference between the near and far outlets is narrowed when the TLS is applied.A computational program was developed to calculate characteristic parameters of different ladle shroud designs,and a dimensionless index was proposed to evaluate their mass and inner *** trials have been carried out,and the results showed that TLS can reduce level fluctuation in the pouring zone,which is beneficial to promoting better protective performance from secondary contamination and heat loss during continuous casting.

关键词： Tundish metallurgy Multiphase flow Ladle shroud Modeling Plant trial

Distribution of Mineral Nutrients and Active Ingredients in Aloe vera Irrigated with Diluted Seawater

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Pedosphere 2014年第6期24卷 722-730页

作者： jiang Chao-Qiang quan Ling-Tong SHI Feng yang Na WANG Chang-Hai YIN Xiao-Ming zheng qing-Song College of Resources and Environmental Science Key Laboratory of Marine BiologyNanjing Agricultural University Tobacco Research Institute Anhui Academy of Agricultural Science College of Life Science Nanjing Agricultural University

With increasing demand for irrigation water, agricultural scientists and planners pay more attention to the utilization of diluted seawater as an alternative source for irrigation of crops. A greenhouse pot experiment was conducted to study how seawater stress(SS) affects growth, water content, cationic accumulation, and active ingredients in leaves of Aloe vera after 30 d of growth in nutrient media with 0%(control), 22%(22% SS), and 42%(42% SS) seawater stress. Results indicated the SS did not change dry biomass of leaves and stems, but gradually decreased biomass allocation to roots with increasing seawater stress. Na+and Cl-in A. vera plant did not increase obviously with a big increase in seawater percentage due to low transpiration of Aloe vera. 42% SS decreased N concentration in most plant organs, but did not change or increased P concentration. Seawater stress tended to decrease concentrations of K+and Ca2+in A. vera. However, seawater salinity tended to increase the concentrations of aloin concentration in top(young) and middle leaves, and there was no significant effect of both stresses on aloin concentration in base(old) leaves. The 42% SS treatment decreased polysaccharide concentrations only in the base leaves, but not in top and middle leaves. In summary, supplying suitably diluted seawater for 30 d could increase the qualities and value of A. vera, without substantial effects on shoot dry biomass production.

关键词： aloin growth nutrition distribution polysaccharide seawater irrigation

Knowledge about, attitude and acceptance towards, and predictors of intention to receive the COVID-19 vaccine among cancer patients in Eastern China: A cross-sectional survey

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Journal of Integrative Medicine 2022年第1期20卷 34-44页

作者： Jing Hong Xiao-wan Xu Jing yang Jing zheng shu-mei Dai Ju Zhou qing-mei Zhang Yi Ruan Chang-quan Ling School of Traditional Chinese Medicine Naval Medical UniversityShanghai 200433China Department of Integrative Oncology Changhai HospitalNaval Medical UniversityShanghai 200433China Department of Oncology The Fint Affiliated HospitalBengbu Medical CollegeBengbu 233010Anhui ProvinceChina Department of Nursing Fuyang Cancer HospitalFuyang 236000Anhui ProvinceChina Department of Cardiac Rehabilitation Shanghai First Rehabilitation HospitalShanghai 200090China Department of Radiation Oncology Anhui Chest HospitalHefei 230022Anhui ProvinceChina Department of Anesthesiology Chaohu HospitalAnhui Medical UniversityHefei 238000Anhui ProvinceChina

Objective: The coronavirus disease 2019(COVID-19) pandemic has had a serious impact on health all over the world. Cancer patient, whose immunity is often compromised, faces a huge ***, some COVID-19 vaccines are being developed and applied on general population;however,whether cancer patients should take COVID-19 vaccine remains unknown. Our study aimed to explore the knowledge, attitude, acceptance, and predictors of intention to receive the COVID-19 vaccine among cancer patients in Eastern ***: A cross-sectional study was conducted in Eastern China from June 17 th to September 3 rd, *** were selected using a convenience sampling method. A self-report questionnaire was developed to assess knowledge about the COVID-19 vaccine, attitude towards the vaccine and acceptance of the vaccine;following a review of similar studies previously published in the scientific literature, multivariate logistic regression analysis was used to determine the predictors associated with COVID-19 vaccine ***: A total of 2158 cancer patients were enrolled in this study. The rate of vaccine hesitancy was 24.05%(519/2158);further, among the participants of vaccine acceptance, 767 had taken COVID-19 vaccine(35.54%), and 872 were willing to get vaccinated(40.01%). A total of 24 variables including demographic characteristics, clinical status of cancer, impact of COVID-19 pandemic on study participants,patients’ knowledge about the COVID-19 vaccine, and attitude towards the vaccine, had significant differences between the ‘‘vaccine hesitancy" population and ‘‘vaccine acceptance" *** logistic regression analysis indicated that parameters including alcohol consumption(odds ratio [OR] = 1.849;95% confidence interval [CI]: 1.375–2.488;P-reference [P-Ref] < 0.001 vs nondrinkers), income impacted by COVID-19 pandemic(OR = 1.930, 2.037 and 2.688 for mild, moderate,and severe impact, respectively;all P-Ref < 0.01 vs no impact), know

关键词： COVID-19 Cancer Vaccine Knowledge Attitude Predictors Intention Vaccine hesitancy

Specific HLA-DQB1 alleles associated with risk for development of hepatocellular carcinoma:A meta-analysis

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World Journal of Gastroenterology 2011年第17期17卷 2248-2254页

作者： Yong-Ning Xin Zhong-Hua Lin Xiang-Jun jiang shu-Hui Zhan quan-jiang Dong qing Wang Shi-Ying Xuan Department of Gastroenterology Qingdao Municipal Hospital Qingdao 266071 Shandong Province China School of Medicine Qingdao University Qingdao 266021 Shandong Province China College of Medicine and Pharmaceutics Ocean University of China Qingdao 266003 Shandong Province China

AIM:To evaluate the association of human leukocyte antigen(HLA)-DQB1 alleles with hepatocellular carcinoma(HCC) through meta-analysis of published ***:Case-control studies on HLA-DQB1 allele association with HCC published up to January 2010 were included in the *** odds ratios(ORs) of HLADQB1 allele distributions in HCC patients were analyzed and compared with healthy *** meta-analysis software REVMAN 5.0 was applied for investigating heterogeneity among individual studies and for summarizing all the studies.A meta-analysis was performed using fixed-effect or random-effect methods,depending on the absence or presence of significant *** case-control studies containing 398 cases and 594 controls were included in the final ***:Among the five family alleles,two(DQB1*02 and DQB1*03) were found to be significantly associated with the risk of *** combined OR for the association of DQB1*02 and DQB1*03 allele with the risk for HCC was 1.78(95% CI:1.05-3.03,P = 0.03) and 0.65(95% CI:0.48-0.89,P = 0.007),*** the 13 specific alleles,two(DQB1*0502 and DQB1*0602) were significantly associated with risk of *** combined OR for the association of DQB1*0502 and DQB1*0602 allele with the risk for HCC was 1.82(95% CI:1.14-2.92,P = 0.01) and 0.58(95% CI:0.36-0.95,P = 0.03),*** significant association was established for other HLA-DQB1 family alleles and specific ***:Our results support the hypothesis that specific HLA-DQB1 allele families and alleles might influence the susceptibility or resistance to HCC,although it needs further investigations.

关键词： Hepatocellular carcinoma Human leukocyte antigen-DQB1 alleles Meta-analysis

Study of 3-D Numerical Simulation for Gas Transfer in the Goaf of the Coal Mining

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Journal of China University of Mining and Technology 2007年第2期17卷 152-157页

作者： WU zheng-yan jiang shu-guang HE Xin-jian WANG Lan-yun LIN Bai-quan School of Mining and Safety Engineering China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China

In order to simulate field distribution rules,mathematical models for 3-D air flows and gas transfer in the goaf of the coal mining are established,based on theories of permeability and dynamic dispersion through porous media. A gas dispersion equation in a 3-D field is calculated by use of numerical method on a weighted upstream multi-element balance. Based on data of an example with a U type ventilation mode,surface charts of air pressure distribution and gas concentration are drawn by Graphtool software. Finally,a comparison between actually measured results in the model test and the numerical simulation results is made to proves the numerical implementation feasible.

关键词： 3D numerical simulation of gas transfer in the goaf air pressure distribution in the goaf weighted upstream multi-element balance numerical simulation method