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Novel satellite transport protocol with on-board spoofing proxy

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Journal of Systems Engineering and Electronics 2006年第3期17卷 513-520页

作者： liu jiong Cao Zhigang Wang Jinglin State Key Laboratory on Microwave & Digital Communication Dept. of Electronics Engineering Tsinghua Univ. Beijing 100084P. R. China Xi 'an Communication Inst. Xi'an 710106 P. R. China

As a result of the exponential growing rate of worldwide Internet usage, satellite systems are required to support broadband Internet applications. The transmission control protocol （TCP） which is widely used in the Internet, performs very well on wired networks. However, in the case of satellite channels, clue to the delay and transmission errors, TCP performance degrades significantly and bandwidth of satellite links can not be fully utilized. To improve the TCP performance, a new idea of placing a TCP spoofing proxy in the satellite is considered. A Novel Satellite Transport Protocol （NSTP） which takes advantage of the special properties of the satellite channel is also proposed. By using simulation, as compared with traditional TCPs, the on-board spoofing proxy integrated with the special transport protocol can significantly enhance throughput performance on the high BER satellite link, the time needed to transfer files and the bandwidth used in reverse path are sharply reduced.

关键词： satellite communication on-board spoofing proxy novel satellite transport protocol (NSTP) modified SACK (M-SACK) TCP ground station (GS).

Maser Emission of Relativistic Electrons Spiralling and Drifting in Curved Magnetic Fields

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Chinese Journal of Astronomy and Astrophysics 2007年第2期7卷 304-316页

作者： jiong liu Ye-Fei Yuan Xiao-Long Deng Center for Astrophysics University of Science and Technology of China Hefei 230026

Synchro-curvature radiation describes the emission from a relativistic charged particle which is moving and spiralling in a curved magnetic field. We investigate the maser emission for synchro-curvature radiation including drift of the guiding center of the radiating electron. It is shown that under some conditions the absorption coefficient can be negative, so maser can happen. These conditions are different from those needed for maser emission of curvature radiation including drift of the charged particles. We point out that our results, including the emissivity, can reduce to these of curvature radiation. Previously it was found that synchro-curvature radiation can not generate maser in vacuum, but we argue that synchrocurvature radiation including drift can generate maser even in vacuum. We discuss the possibilities of the potential applications of the synchro-curvature maser in modeling gamma ray bursts and pulsars.

关键词： masers - plasmas - radiation mechanisms non-thermal

Particle Residence Time in Column Flotation Based on Cyclonic Separation

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Journal of China University of Mining and Technology 2007年第3期17卷 349-353页

作者： ZHOU Xiao-hua liu jiong-tian Department of Mining Engineering University of Kentucky Lexington KY40506 USA School of Chemical Engineering and Technology China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China

The cyclonic static micro-bubble column flotation (FCSMC) is an effective separation device for fine particle treatment. The high mineralization rate and short flotation time of this equipment can be attributed to its unique cyclonic force field. It also has been observed that the presence of a cyclonic force field leads to a lower bottom separation size limit and a reduction of unselective entrainment. The collection zone of the column is considered to consist of two parts,a column separation zone and a cyclonic zone. Total recovery of the collection zone was developed. For our study,we analyzed the particle movement in the cyclonic zone. Particle residence time equations for the cyclonic zone were de-rived by force analysis. Results obtained in this study provide a theoretical foundation for the design and scale-up of the FCSMC.

关键词： column flotation cyclonic separation residence time

miR-223、PDW联合RDW预测HBV相关性肝癌患者肝动脉化疗栓塞术后抗病毒治疗反应性效能

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中西医结合肝病杂志 2025年第2期35卷 163-168页

作者：马伟刘炯雷世舟江斌十堰市太和医院(湖北医药学院附属医院)肝胆胰诊疗中心湖北十堰442000

目的:分析微小核糖核酸-223(miR-223)、血小板分布宽度(PDW)联合红细胞分布宽度(RDW)预测乙型肝炎病毒(HBV)相关性肝癌患者导管肝动脉化疗栓塞(TACE)术后抗病毒治疗反应性效能的关系。方法:选择2019年1月至2022年1月收治的HBV相关性肝... 详细信息

目的:分析微小核糖核酸-223(miR-223)、血小板分布宽度(PDW)联合红细胞分布宽度(RDW)预测乙型肝炎病毒(HBV)相关性肝癌患者导管肝动脉化疗栓塞(TACE)术后抗病毒治疗反应性效能的关系。方法:选择2019年1月至2022年1月收治的HBV相关性肝癌患者128例,所有患者均接受TACE联合核苷(酸)类似物抗病毒治疗。治疗后随访12个月,记录HBV激活情况。患者入院时均接受miR-223、PDW、RDW检测并记录基线资料。采用Pearson相关性分析miR-223、PDW、RDW之间的关系。采用二元Logistics回归分析miR-223相对表达量、PDW、RDW与HBV相关性肝癌患者抗病毒疗效的关系。采用接受者操作特征曲线(ROC)分析miR-223相对表达量、PDW、RDW水平预测HBV相关性肝癌患者抗病毒疗效的价值。结果:抗病毒治疗12个月后,19例(14.84%)HBV激活患者为激活组,109例(85.16%)HBV未激活患者为未激活组,两组患者肿瘤数目、Child-Pugh分级、基线HBV DNA水平比较差异无统计学意义(P>0.05);采用Pearson相关性分析发现,miR-223相对表达量与PDW、RDW无明显相关性(P>0.05),PDW与RDW无明显相关性(P>0.05);行二元Logistics回归分析结果显示,miR-223相对表达量、PDW、RDW是HBV相关性肝癌患者抗病毒治疗后HBV激活的危险因素(OR=1.166、1.831、1.430,P<0.05);ROC曲线显示,入院时miR-223相对表达量、PDW、RDW水平及联合检测预测HBV相关性肝癌患者抗病毒治疗无效的AUC分别为0.878、0.714、0.763、0.955,其中联合检测最高。结论:miR-223相对表达量、PDW及RDW水平与HBV相关性肝癌患者抗病毒治疗反应性效能关系密切,三者及联合检测能够有效预测HBV相关性肝癌患者抗病毒治疗效果。

关键词：乙型肝炎病毒相关性肝癌微小核糖核酸-223 血小板分布宽度红细胞分布宽度

Multipartite entanglement concentration for nitrogen-vacancy center and microtoroidal resonator system

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Chinese Science Bulletin 2013年第28期58卷 3507-3513页

作者： SHENG YuBo liu jiong ZHAO ShengYang ZHOU Lan Key Laboratory of Broadband Wireless Communication and Sensor Network Technology Nanjing University of Posts and TelecommunicationsMinistry of Education Institute of Signal Processing Transmission Nanjing University of Posts and Telecommunications College of Mathematics and Physics Nanjing University of Posts and Telecommunications

We describe a high efcient entanglement concentration protocol(ECP)for multi-particle less-entangled nitrogen-vacancy(N-V)center and microtoroidal resonator *** the ECP,we only require one pair of less-entangled state,two auxiliary N-V center in microcavities and some single *** the photon passing through the microcavity,by measuring the polarization of the photon,a maximally entangled W state can be obtained with some success *** ECP does not need to destroy the solid qubit,which makes it more ***,by resorting to more single photons,it can be repeated to reach a high success *** features make this ECP useful in current long-distance quantum communications.

关键词：谐振系统纠缠态空位浓缩远距离量子通信氮成功概率 ECP

Consumer Credit Risk Management in an Emerging Market: The Case of China

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China & World Economy 2006年第3期14卷 86-94页

作者： Xiaoqing Eleanor Xu jiong liu Associate Professor Stillman School of Business Seton Hall University South Orange N J USA Vice President Consumer Credit Risk Management Citibank N.A. Long Island City NY USA

With the liberalization of the financial service sector mandated by China＇s access to the WTO, China＇s credit card market has received a great deal of attention from global financial institutions. This paper examines the enormous growth opportunities and key barriers facing the development of the credit card industry in China, and discusses the importance and tools of consumer credit risk management. In the process of rapid expansion of China＇s consumer credit card industry, credit risk management should be treated as a top priority to avoid a pile up of bad debt in credit card receivables. This requires the development of an updated and comprehensive national consumer credit database and the use of credit risk modeling and scoring in predicting consumer behavior. As structured finance develops in China, the securitization of credit card receivables into asset-backed securities might also serve as an alternative to traditional credit risk management.

关键词： China consumer credit credit scoring risk management

Klippel-Trenaunay syndrome with gastrointestinal bleeding,splenic hemangiomas and left inferior vena cava

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World Journal of Gastroenterology 2010年第12期16卷 1548-1552页

作者： Wang, Zhen-Kai Wang, Fang-Yu Zhu, Ren-Min liu, jiong Nanjing Mil Command Chinese PLA Nanjing Cent Hosp Dept Gastroenterol Nanjing 210002 Jiangsu Prov Peoples R China

Klippel-Trenaunay syndrome is a congenital vascular anomaly characterized by a triad of varicose veins,cutaneous capillary malformation,and hypertrophy of bone and(or)soft *** vascular malformations in Klippel-Trenaunay syndrome may present with gastrointestinal *** majority of patients with spleenic hemangiomatosis and/or left inferior vena cava are *** herein report a case admitted to the gastroenterology clinic with life-threatening hematochezia and symptomatic iron deficiency *** to the asymptomatic mild intermittent hematochezia,splenic hemangiomas and left inferior vena cava,the patient did not seek any help for gastrointestinal bleeding until his admittance to our department for evaluation of massive gastrointestinal *** was referred to angiography because of his serious pathogenetic condition and inefficiency of medical *** method showed that hemostasis was successfully achieved in the hemorrhage site by embolism of corresponding *** endoscopy revealed vascular malformations starting from the stomach to the descending *** the other hand,computed tomography revealed splenic hemangiomas and left inferior vena *** the best of our knowledge,this is the first Klippel-Trenaunay syndrome case presenting with gastrointestinal bleeding,splenic hemangiomas and left inferior vena *** literature on the evaluation and management of this case is reviewed.

关键词： Klippel-Trenaunay syndrome Gastrointestinal bleeding Splenic hemangiomas Left inferior vena cava

miR-29a-3p抑制骨肉瘤细胞干性及其分子机制

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现代肿瘤医学 2025年第3期33卷 388-395页

作者：匡健董文刚丁家云刘炅刘文毅周志坚刘军南部战区疾病预防控制中心广东广州510630 陕西省人民医院急诊外科陕西西安710068

目的:探讨miR-29a-3p是否影响骨肉瘤细胞干性并探究其分子机制。方法:通过低黏附培养法富集骨肉瘤干细胞,利用real-time PCR实验检测骨肉瘤干细胞分子标志证实干细胞富集成功,并分别检测miR-29a-3p在骨肉瘤细胞系以及干细胞中的表达。... 详细信息

目的:探讨miR-29a-3p是否影响骨肉瘤细胞干性并探究其分子机制。方法:通过低黏附培养法富集骨肉瘤干细胞,利用real-time PCR实验检测骨肉瘤干细胞分子标志证实干细胞富集成功,并分别检测miR-29a-3p在骨肉瘤细胞系以及干细胞中的表达。而后通过调控miR-29a-3p表达检测其对骨肉瘤干细胞分子标志(Nanog、Oct-4、Sox2)表达水平以及克隆形成能力的影响。利用生物信息学网站TargetScan预测得到miR-29a-3p的靶基因,即肿瘤坏死因子受体相关因子5(tumor necrosis factor receptor associated factor-5,TRAF5),而后通过双荧光素酶报告基因实验证实miR-29a-3p与TRAF5的靶向关系,并利用real-time PCR、Western blotting实验检测miR-29a-3p对TRAF5表达的影响。通过拯救实验证实miR-29a-3p通过抑制TRAF5调控骨肉瘤细胞干性分子标志表达水平以及克隆形成能力。为了进一步探究miR-29a-3p发挥上述功能与Wnt通路的关系,我们检测了Wnt信号通路中β-catenin的入核情况,并利用TOPFlash报告基因质粒检测β-catenin介导的TCF/LEF转录活性水平从而指征Wnt通路的激活情况,最后通过Western blotting检测Wnt信号通路相关蛋白TCF-4、Pygo2的表达水平。结果:real-time PCR实验结果表明miR-29a-3p在骨肉瘤细胞系以及干细胞中异常低表达,随后发现miR-29a-3p能够抑制骨肉瘤干细胞分子标志表达水平以及克隆形成能力。生物信息学分析、分子生物学实验以及拯救实验结果表明,miR-29a-3p通过靶向TRAF5发挥上述功能。进一步的研究发现miR-29a-3p下调能够促进Wnt信号通路中β-catenin入核、TCF/LEF转录活性水平以及Wnt信号通路相关蛋白TCF-4、Pygo2的表达水平,而同时下调miR-29a-3p、TRAF5表达可以部分逆转上述现象。结论:miR-29a-3p通过靶向TRAF5影响Wnt信号通路继而调控骨肉瘤细胞干性。

关键词：骨肉瘤肿瘤干细胞 miR-29a-3p Wnt信号通路

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Overdischarge-induced evolution of Cu dendrites and degradation of mechanical properties in lithium-ion batteries

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Journal of Energy Chemistry 2023年第3期78卷 497-506,I0014页

作者： Zixin Guo Siguo Yang Wenyang Zhao Shenghui Wang jiong liu Zhichao Ma Hongwei Zhao Luquan Ren Key Laboratory of CNC Equipment Reliability Ministry of EducationJilin UniversityChangchun 130025JilinChina School of Mechanical and Aerospace Engineering Jilin UniversityChangchun 130015JilinChina Key Laboratory of Bionic Engineering Ministry of Education Jilin UniversityChangchun 130025JilinChina Weihai Institute for Bionics-Jilin University Weihai 264400ShandongChina

The degradation of mechanical properties of overdischarge battery materials manifests as a significant effect on the energy density,safety,and cycle life of the ***,establishing the correlation between depth of overdischarge and mechanical properties is still a significant *** the correlation between depth of overdischarge and mechanical properties is of great significance to improving the energy density and the ability to resist abuse of the *** this paper,the mechanical properties of the battery materials during the whole process of overdischarge from discharge to complete failure were *** effects of depth of overdischarge on the elastic modulus and hardness of the cathode of the battery,the tensile strength and the thermal shrinkage rate of the separator,and the performance of binder were *** precipitation of Cu dendrites on the separator and cathode after dissolution of anode copper foil is a key factor affecting the performance of battery *** Cu dendrites attached to the cathode penetrate the separator,causing irreversible damage to the coating and base film of the separator,which leads to a sharp decline in the tensile strength,thermal shrinkage rate and other properties of the *** addition,the Cu dendrites wrapping the cathode active particles reduce the adhesion of the active particles ***,the active particles are damaged,resulting in a significant decrease in the elastic modulus and hardness of the cathode.

关键词： Overdischarge Cu dendrites Mechanical properties Nanoindentation Micron scratch