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Blockchain Privacy Protection Based on Post Quantum Threshold Algorithm

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Computers, Materials & Continua 2023年第7期76卷 957-973页

作者： Faguo Wu Bo Zhou Jie jiang Tianyu lei Jiale Song Institute of Artificial Intelligence Beihang UniversityBeijing100191China Zhongguancun Laboratory Beijing100094China Key Laboratory of Mathematics Informatics and Behavioral Semantics(LMIB)Beihang UniversityBeijing100191China Bejing Advanced Innovation Center for Future Blockchain and Privacy Computing Beihang UniversityBeijing100191China LMIB and School of Mathematical Sciences Beihang UniversityBeijing100191China

With the rapid increase in demand for data trustworthiness and data security,distributed data storage technology represented by blockchain has received unprecedented *** technologies have been suggested for various uses because of their remarkable ability to offer decentralization,high autonomy,full process traceability,and tamper *** enables the exchange of information and value in an untrusted *** has been a significant increase in attention to the confidentiality and privacy preservation of blockchain *** data privacy is a critical concern in cryptography,and one of the most important protocols used to achieve this is the secret-sharing *** dividing the secret into shares and distributing them among multiple parties,no one can access the secret without the cooperation of the other ***,Attackers with quantum computers in the future can execute Grover’s and Shor’s algorithms on quantum computers that can break or reduce the currently widely used ***,centralized management of keys increases the risk of key *** paper proposed a post-quantum threshold algo-rithm to reduce the risk of data privacy leakage in blockchain *** algorithm uses distributed key management technology to reduce the risk of individual node private key leakage and provide post-quantum *** proposed privacy-preserving cryptographic algorithm provides a post-quantum threshold architecture for managing data,which involves defining users and interaction processes within the *** paper applies a linear secret-sharing solution to partition the private key of the Number Theory Research Unit(NTRU)algorithm into n *** constructs a t–n threshold that allows recovery of the plaintext only when more than t nodes participate in *** characteristic of a threshold makes the scheme resistant to collusion attacks from members whose combined credibility is less than the

关键词： Blockchain post-quantum cryptography threshold cryptography privacy protection

Synthesis of Flower-like Zinc Oxalate Microspheres in Ether-water Bilayer Refluxing Systems and Their Conversion to Zinc Oxide Microspheres

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Journal of Materials Science & Technology 2011年第6期27卷 563-569页

作者： Liang Ni lei Wang Bing Shao Yinjue Wang Wenli Zhang Yong jiang School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 China

Flower-like zinc oxalate with a mean diameter of 50 μm was synthesized via the reaction of zinc acetate and dimethyl oxalate in ether-water bilayer refluxing systems at low ***-like zinc oxalate microspheres can be further transformed into the similar morphology to zinc oxide by the decomposition of zinc oxalate at 500℃.Scanning electron microscopy（SEM）,X-ray diffraction（XRD）,thermogravimetric analysisdifferential scanning calorimetric（TG-DSC）,energy dispersive X-ray spectrum（EDX） and Fourier transforminfrared spectroscopy（FT-IR） were used to characterize the structure features and chemical compositions of the as-synthesized *** UV-Vis and photoluminescence spectrum of flower-like zinc oxide microspheres were *** experimental results showed that flower-like zinc oxalate microspheres may be self-assembled by the zinc oxalate *** ether-water volume ratio of 4：1 and refluxing temperature of 40℃ were considered to favor the preparation of flower-like zinc oxalate microspheres.

关键词： Bilayer refluxing system Zinc oxalate Zinc oxide Flower-like microspheres

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戊型肝炎病毒树鼩感染模型的初步研究

云南农业大学学报 2013年第2期25卷 186-189页

作者：蒋雷尹革芬舒相华李进涛胡映开杨贵树李文贵云南农业大学动物科学技术学院云南昆明650201 昆明医科大学实验动物学部云南昆明650550

戊型肝炎病毒(HEV)研究多以灵长类动物为感染模型。由于灵长类动物价格昂贵,实验条件的控制和饲养管理较困难等原因,严重阻碍了HEV研究进展。本研究对应用树鼩(Tupaia belangeri)建立HEV感染模型的可行性进行了探索。从猪群中分离、鉴定... 详细信息

戊型肝炎病毒(HEV)研究多以灵长类动物为感染模型。由于灵长类动物价格昂贵,实验条件的控制和饲养管理较困难等原因,严重阻碍了HEV研究进展。本研究对应用树鼩(Tupaia belangeri)建立HEV感染模型的可行性进行了探索。从猪群中分离、鉴定HEV,经静脉注射途径感染树鼩,按计划采集粪便、血液以及器官组织,应用巢式RT-PCR检测树鼩感染情况,观察感染后树鼩各器官组织病理学病化。结果发现,感染7 d后血液、粪便、肝脏、小肠等样品可检测出HEV RNA,病毒血症持续约2周。组织病理学观察结果,人工感染HEV的树鼩肝脏可见静脉窦淤血、多发性淋巴细胞浸润、库普弗细胞增多等病变。研究结果表明树鼩对HEV具有易感性,感染后肝脏出现病毒性肝炎的病理学变化,具有作为戊型肝炎的感染模型的潜在价值。

关键词：戊型肝炎病毒感染树鼩

Visual Comparison of Customer Stickiness in Retail Stores

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Chinese Journal of Electronics 2018年第5期27卷 951-958页

作者： jiang Tao SHI lei ZHAO Ye ZHANG Xiatian LU Yao HUANG Congcong SKLCS Institute of SoftwareChinese Academy of Sciences Department of Computer Science Kent State University

Understanding market trends and forming competitive promotion strategies has always been a major task of retail store managers. One big challenge is the lack of effective tools for in-depth customer behavior analysis. In this paper, we apply visual analytics techniques to address the challenge, which is built up on the emerging and mobile location big data. We present a system that focuses on the analysis of customer stickiness which represents customers’ affinity to retail stores. The system integrates mobile data pre-processing, customer stickiness analysis, multi-view visualization, and a set of *** visual analytics techniques are mainly designed for two types of user tasks: 1) understanding the spatio-temporal distribution of customer traces related to retail stores; 2)evaluating the performance and trend of multiple retail stores through visual comparison. We have demonstrated the effectiveness of the system through two case studies including advertisement placement and business branch reconfiguration.

关键词： Spatio-Temporal Visual comparison Retail store analysis Location based marketing

吉西他滨联合铂类两药方案与单药方案对非小细胞肺癌治疗比较的meta分析

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中国肺癌杂志 2010年第3期13卷 216-223页

作者：苟云久张玲娟杨启梅张蓉芳郭慧玲姜雷杨克虎田金徽兰州大学第二医院心胸外科兰州730000 兰州大学循证医学中心兰州730000 兰州大学第二临床医学院兰州730000

背景与目的吉西他滨联合铂类治疗晚期非小细胞肺癌的疗效是否优于单用吉西他滨或铂类尚存在争议,本研究对吉西他滨联合铂类治疗晚期非小细胞肺癌的有效性和安全性进行meta分析。方法计算机检索VIP、CBM、CNKI、The Cochrane Library、PU... 详细信息

背景与目的吉西他滨联合铂类治疗晚期非小细胞肺癌的疗效是否优于单用吉西他滨或铂类尚存在争议,本研究对吉西他滨联合铂类治疗晚期非小细胞肺癌的有效性和安全性进行meta分析。方法计算机检索VIP、CBM、CNKI、The Cochrane Library、PUBMED和EMBASE等数据库,同时追查纳入文献的参考文献和与本领域专家、通讯作者等联系以获取以上检索尚未发现的相关信息。收集吉西他滨联合铂类治疗晚期非小细胞肺癌的随机对照试验(RCT),根据Cochrane Handbook5.0质量评价标准评价,用RevMan5.0软件进行统计学分析。结果共纳入4个随机对照试验(984名研究对象)的meta分析结果显示,吉西他滨联合铂类在有效率(OR=3.29,95%CI:1.79-6.05,P=0.0001)、2年生存率(OR=3.22,95%CI:1.45-7.12,P=0.004)等方面与单用吉西他滨的差异有统计学意义,但联合用药组的不良反应发生率增加明显,以3/4级血小板减少发生率增加最为明显(RR=8.16,95%CI:1.71-39.07,P=0.009);吉西他滨联合铂类在有效率(OR=3.51,95%CI:2.20-5.60,P<0.01)、1年生存率(OR=1.67,95%CI:1.16-2.41,P=0.006)等方面与单用顺铂的差异有统计学意义,联合用药组的不良反应发生率增加明显,以3/4级血小板减少发生率增加最为明显(OR=28.55,95%CI:14.06-57.04,P<0.01)。结论与单药组相比,联合组可明显提高非小细胞肺癌患者的有效率和生存率,同时增加了毒副反应发生率。上述结果尚需高质量随机对照试验进一步证实。

关键词：肺肿瘤吉西他滨 meta分析

口腔颌面-头颈部眶外巨细胞血管纤维瘤的临床及病理特征分析

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中国口腔颌面外科杂志 2015年第2期13卷 161-166页

作者：蒋建磊代天国田卓炜王丽珍何悦福建龙岩人民医院口腔科福建龙岩364000 上海交通大学医学院附属第九人民医院·口腔医学院口腔颌面-头颈肿瘤科上海交通大学医学院附属第九人民医院·口腔医学院口腔病理科上海市口腔医学重点实验室上海200011

目的：探讨口腔颌面-头颈部眶外巨细胞血管纤维瘤（extra-orbital giant cell angiofibroma,EO-GCA）的临床病理特征、鉴别诊断及治疗方法。方法：收集整理Pubmed数据库中已报道的12例口腔颌面-头颈部EO-GCA文献资料,并结合我院2例患者... 详细信息

目的：探讨口腔颌面-头颈部眶外巨细胞血管纤维瘤（extra-orbital giant cell angiofibroma,EO-GCA）的临床病理特征、鉴别诊断及治疗方法。方法：收集整理Pubmed数据库中已报道的12例口腔颌面-头颈部EO-GCA文献资料,并结合我院2例患者的临床病理资料进行分析。结果：14例患者（男9例,女5例）年龄24~84岁,平均43.5岁。肿瘤多数生长缓慢,大小与发生部位有关。镜下见肿瘤细胞呈卵圆形或短梭形,以富含血管和多核巨细胞为特征。免疫组织化学CD34及vimentin等间叶组织标志物呈阳性。临床极易误诊,确诊依赖于术后病理学检查,手术完整切除后复发少见。结论：口腔颌面-头颈部EO-GCA是一种罕见的软组织良性肿瘤,临床易误诊,确诊依赖于组织病理学检查,手术完整切除后预后较好。

关键词：口腔颌面-头颈部眶外巨细胞血管纤维瘤临床病理特征

SIMULATION OF THE IN-PILE BEHAVIORS EVOLUTION IN NUCLEAR FUEL RODS WITH THE IRRADIATION DAMAGE EFFECTS

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Acta Mechanica Solida Sinica 2014年第6期27卷 551-567页

作者： Xin Gong Yijie jiang Shurong Ding Yongzhong Huo Canglong Wang lei Yang Department of Mechanics and Engineering Science Fudan University Institute of Modern Physics Chinese Academy of Sciences

Based on the commercial computational software, a three-dimensional finite ele- ment model to simulate the thermo-mechanical behaviors in a nuclear fuel rod is established; By taking into consideration irradiation-swelling of the pellet and the irradiation damage effects in the cladding together with the coupling effects between the temperature field and the mechanical field, the user subroutines to define the special material performance and boundary conditions have been developed independently and validated. Three-dimensional numerical simulation of the thermo-mechanical coupling behaviors in a nuclear fuel rod is carried out, and the evolution rules of the important thermal and mechanical variables are obtained and analyzed. The research re- sults indicate that：（i） the fuel pellets will be in contact with the cladding at high burnup, which will induce a strong mechanical interaction between them; （2） the irradiation creep effect plays an important role in the mechanical behavior evolution in the nuclear fuel rod.

关键词： irradiation hardening irradiation creep large-deformation thermo-mechanicalcoupling FEM

An improved implementable process for the synthesis of zeolite 4A from bauxite tailings and its Cr^(3+) removal capacity

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International Journal of Minerals,Metallurgy and Materials 2016年第7期23卷 850-857页

作者： Peng-cheng lei Xian-jiang Shen Yang Li Min Guo Mei Zhang School of Metallurgical and Ecological Engineering University of Science and Technology Beijing

A simple and practical method for the synthesis of zeolite 4A from bauxite tailings is presented in this paper. Systematic investigations were carried out regarding the capacity of zeolite 4A to remove Cr（III） from aqueous solutions with relatively low initial concentrations of Cr（III）（5–100 mg·L^（-1））. It is found that the new method is extremely cost-effective and can significantly contribute in decreasing environmental pollution caused by the dumping of bauxite tailings. The Cr（III） removal capacity highly depends on the initial p H value and concentration of Cr（III） in the solution. The maximum removal capacity of Cr（III） was evaluated to be 85.1 mg×g^（-1） for zeolite 4A, measured at an initial p H value of 4 and an initial Cr（III） concentration of 5 mg·L^（-1）. This approach enables a higher removal capacity at lower concentrations of Cr（III）, which is a clear advantage over the chemical precipitation method. The removal mechanism of Cr（III） by zeolite 4A was examined. The results suggest that both ion exchange and the surface adsorption-crystallization reaction are critical steps. These two steps collectively resulted in the high removal capacity of zeolite 4A to remove Cr（III）.

关键词： bauxite tailings zeolite trivalent chromium wastewater treatment

新疆南疆土壤有机质垂向分布特征及影响因素研究——以塔里木河下游不同土地利用类型为例

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环境生态学 2024年第6期6卷 17-22,30页

作者：郭帅邢媛媛何亮蒋磊韩风刘靖宇中国地质调查局乌鲁木齐自然资源综合调查中心新疆乌鲁木齐830057 中国地质大学(北京) 北京100083 新疆维吾尔自治区林业规划院新疆乌鲁木齐830049 中国地质大学(武汉)环境学院湖北武汉430078

以南疆塔里木河下游土壤有机质(SOM)为研究对象,运用显著性差异的方法分析不同土地利用类型SOM含量的垂向分布(0~200 cm)特征,并用Pearson相关分析揭示了SOM与含盐量、pH、全氮含量之间的影响关系。结果表明:1)由土地利用类型导致的SOM... 详细信息

以南疆塔里木河下游土壤有机质(SOM)为研究对象,运用显著性差异的方法分析不同土地利用类型SOM含量的垂向分布(0~200 cm)特征,并用Pearson相关分析揭示了SOM与含盐量、pH、全氮含量之间的影响关系。结果表明:1)由土地利用类型导致的SOM含量的差异主要表现在0~80 cm土层。2)研究区不同土地利用类型SOM含量随深度增加整体呈下降趋势,其中耕地SOM具有明显的表聚现象;林地SOM垂向变化呈“S”形,在120 cm处有明显低值;草地SOM垂向变化幅度小且在80~200 cm深度变化趋于平稳;盐碱地SOM含量随深度变化无明显规律。3)SOM含量在垂向上与土壤含盐量呈显著正相关(p<0.01),与pH呈显著负相关(p<0.01),与土壤全氮含量呈显著正相关(p<0.01)。

关键词：塔里木河有机质土壤含盐量土地利用 Pearson相关分析