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Predicting Tie strength of Chinese Guanxi by Using Big Data of social Networks

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Journal of social Computing 2020年第1期1卷 40-52页

作者： Xin Gao jar-Der luo Kunhao Yang Xiaoming Fu loring liu weiwei Gu Department of sociology Tsinghua UniversityBeijing 100084China school of Arts and sciences University of TokyoTokyo 153-8902Japan Institute of Computer science University of G¨ottingenG¨ottingen 37077Germany Tencent Computer system Co.ltd Shenzhen 518000China Information science and Technology Beijing University of Chemical TechnologyBeijing 100029China

This paper poses a question:How many types of social relations can be categorized in the Chinese context?In social networks,the calculation of tie strength can better represent the degree of intimacy of the relationship between nodes,rather than just indicating whether the link exists or *** research suggests that Granovetter measures tie strength so as to distinguish strong ties from weak ties,and the Dunbar circle theory may offer a plausible approach to calculating 5 types of relations according to interaction frequency via unsupervised learning(e.g.,clustering interactive data between users in Facebook and Twitter).In this paper,we differentiate the layers of an ego-centered network by measuring the different dimensions of user's online interaction data based on the Dunbar circle *** label the types of Chinese guanxi,we conduct a survey to collect the ground truth from the real world and link this survey data to big data collected from a widely used social network platform in *** repeating the Dunbar experiments,we modify our computing methods and indicators computed from big data in order to have a model best fit for the ground *** the same time,a comprehensive set of effective predictors are selected to have a dialogue with existing theories of tie ***,by combining Guanxi theory with Dunbar circle studies,four types of guanxi are found to represent a four-layer model of a Chinese ego-centered network.

关键词： tie strength Dunbar circle theory Chinese Guanxi theory supervised classification model social network

火龙罐综合灸护理技术对预防肛门病术后尿潴留的作用分析

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中外医疗 2024年第16期43卷 140-143页

作者：宋婀娜魏带弟徐州市中医院肛肠科江苏徐州221000

目的探讨火龙罐综合灸护理技术对预防肛门病术后尿潴留的护理作用。方法前瞻性随机选取2023年6—12月徐州市中医院肛肠科接诊的160例肛门病患者为研究对象,按随机数表法分组后实施不同护理模式。对照组(80例)给予常规护理,研究组(80例... 详细信息

目的探讨火龙罐综合灸护理技术对预防肛门病术后尿潴留的护理作用。方法前瞻性随机选取2023年6—12月徐州市中医院肛肠科接诊的160例肛门病患者为研究对象,按随机数表法分组后实施不同护理模式。对照组(80例)给予常规护理,研究组(80例)联合火龙罐综合灸护理技术,对比分析两组尿潴留发生率、尿等待时间、排尿困难程度及护理满意度。结果与对照组比较,研究组术后尿潴留发生率更低,差异有统计学意义(P<0.05)。研究组干预后的尿等待时间评分更低,差异有统计学意义(P<0.05)。研究组干预后的排尿困难程度评分更低,差异有统计学意义(P<0.05)。研究组护理满意度(97.50%)更高,差异有统计学意义(χ^(2)=5.766,P<0.05)。结论火龙罐综合灸护理技术可有效预防肛门病术后尿潴留,缩短尿等待时间,改善排尿困难程度,提高护理满意度。

关键词：火龙罐综合灸肛门病尿潴留护理排尿困难

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Oligometastases in prostate cancer:Ablative treatment

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World Journal of Clinical Oncology 2019年第2期10卷 38-51页

作者： Amalia Palacios-eito Amelia Béjar-luque Milagrosa rodríguez-li?án sonia García-Cabezas Department of radiation Oncology Reina Sofia University Hospital

Technological advances in radiotherapy have led to the introduction of techniques such as stereotactic body radiation therapy(sBrT), allowing the administration of ablative doses. The hypothesis that oligometastatic disease may be cured through local eradication therapies has led to the increasing use of sBrT in patients with this type of disease. At the same time, scientific advances are being made to allow the confirmation of clinically suspected oligometastatic status at molecular level. There is growing interest in identifying patients with oligometastatic prostate cancer(PCa) who may benefit from curative intent metastasis-directed therapy, including sBrT. The aim is to complement, replace or delay the introduction of hormone therapy or other systemic therapies. The present review aims to compile the evidence from the main ongoing studies and results on sBrT in relation to oligometastatic PCa; examine aspects where gaps in knowledge or a lack of consensus persist(e.g., optimum schemes, response assessment, identification and diagnosis of oligometastatic patients); and document the lack of first-level evidence supporting the use of such techniques.

关键词： Oligometastases Metastasis-directed therapy stereotactic body radiation therapy stereotactic ablative radiotherapy Prostate cancer

城市社区自组织培育历程研究——以大栅栏街道培育社区自组织为例

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国际社会科学杂志（中文版） 2019年第1期36卷 60-74,6,10页

作者：梁肖月罗家德清华大学社会学系

本文基于自组织过程的理论架构,通过阐述自组织过程理论、社区自组织培力及陪伴式培育过程、从线下到线上三大部分,阐释清华社造团队在大栅栏街道培育社区自组织的实验历程研究。重点介绍了社区自组织培育过程的具体方法,即:社区能人及... 详细信息

本文基于自组织过程的理论架构,通过阐述自组织过程理论、社区自组织培力及陪伴式培育过程、从线下到线上三大部分,阐释清华社造团队在大栅栏街道培育社区自组织的实验历程研究。重点介绍了社区自组织培育过程的具体方法,即:社区能人及自组织资源调查、社区营造陪伴式培力赋能、微公益创投项目引导与社区自组织培育、组织项目及财务状况评估过程等。社区治理经历了长期的线下阶段,在互联网时代和大数据技术支持下,在大栅栏继续探索线上社区治理模式,不仅节省了社区工作人员的人力成本及负担,同时可以有效评估社区自组织社会服务的效率和效果,极大地增加了基层社区治理的效能。

关键词：社区自组织街道历史文化保护区培育城市清华大学天安门广场中心城区

Impact of <i>Moringa oleifera</i>Cake residue Application on Waste Water Treatment: A Case study

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Journal of Water resource and Protection 2014年第7期6卷 677-687页

作者： N. Ali eman C. s. Tan e. A. Makky Faculty of Chemical and Natural resources engineering University Malaysia Pahang Kuantan Malaysia Faculty of Industrial sciences and Technology University Malaysia Pahang Kuantan Malaysia

Most of water treatments require higher expenditure. Chemical coagulant requires higher cost and has some drawback after treatment such as pH changes. Moringa oleifera cake residue (MOCr) is one of the alternatives to replace chemical coagulant. A jar test apparatus was used to monitor water treatment. Water quality of Gebeng river (Gr) and waste water (WW) was examined before and after treatment. Different parameters using (MOCr) was investigated. Preliminary laboratory results showed the great potential of the (MOCr) to be used in water treatment. MOCr shows an excellent reduction in turbidity (97 % was removed). The bacteria were reduced from 1.7 × 105 to 8 × 103 CFU/ml. Dissolved oxygen (DO) was improved that elevated from 1.06 ± 0.04 to 5.09 ± 0.03 mg/l. However, chemical oxygen demand (COD) and biological oxygen demand (BOD) were increased from 520.5 ± 0.71 to 865.0 ± 2.12 mg/l and from 120.5 ± 2.12 to 270.5 ± 2.12 mg/l respectively. Nevertheless, there is no significant alteration of pH, conductivity, salinity and total dissolved solid (TDs) after treatment. The iron (Fe) was fully removed while copper (Cu) and cadmium (Cd) were successfully removed up to 98%. The reduction of lead (Pb) also achieved 82.17%. Also, (MOCr) can be stored for long time up to 6 months without affecting the biological properties of MO.

关键词： Moringa oleifera Waste Water Treatment Dissolved Oxygen Turbidity Heavy Metals Antibacterial

sn对制备具有纳米晶fcc结构钛基合金的影响

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Transactions of Nonferrous Metals society of China 2020年第8期30卷 2119-2131页

作者： C.AGUIlAr e.PIO A.MeDINA C.PArrA r.MANGAlArAJA P.MArTIN I.AlFONsO K.TellO Departamento de Ingeniería Metalúrgica y de Materiales Departamento de Física(+)Universidad Técnica Federico Santa MaríaValparaísoChile Instituto de Investigación en Metalurgia y Materiales Universidad Michoacana de San Nicolás de HidalgoMoreliaMéxico laboratorio de Cerámicos Avanzados y Nanotecnologia Departamento de Ingeniería de MaterialesUniversidad de ConcepciónConcepciónChile Instituto de Investigaciones en Materiales Universidad Nacional Autónoma de MéxicoCampus Morelia UNAMMoreliaMéxico

研究sn含量对Ti-13Ta-xsn(x=3,6,9,12,摩尔分数,%)合金中fcc相形成的影响。合金采用机械合金化方法制备,所用设备为行星式球磨机。通过rietveld分析发现,fcc相的晶粒尺寸小于10 nm,微应变大于10-3,这两个条件是钛基合金中形成fcc相所必... 详细信息

研究sn含量对Ti-13Ta-xsn(x=3,6,9,12,摩尔分数,%)合金中fcc相形成的影响。合金采用机械合金化方法制备,所用设备为行星式球磨机。通过rietveld分析发现,fcc相的晶粒尺寸小于10 nm,微应变大于10-3,这两个条件是钛基合金中形成fcc相所必需的。对于所有的样品,fcc相的显微组织中均含有小于10 nm的等轴晶。当sn含量为6%时,钛合金中fcc相的含量最大,因为该合金具有最大的微应变(1.5×10-2)和晶粒尺寸(6.5 nm)。实验数据表明,球磨过程中形成固溶体和非晶相。用扩展Miedema模型对促进固溶体和非晶相形成的必要条件进行热力学计算。结果表明,当sn含量从3%增加到12%时,形成非晶相所需的能量从大约10 k J/mol变为-5 k J/mol左右。热力学计算结果与XrD分析和HrTeM结果一致。

关键词：钛基合金相变 fcc相 rietveld分析机械合金化

removing contaminants from tannery wastewater by chemical precipitation using CaO and Ca(OH)2

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Chinese Journal of Chemical engineering 2020年第4期28卷 1107-1111页

作者： Adriana reyes-serrano Joel elópez-Alejo Manuel AHernández-Cortázar Ignacio elizalde Instituto Politécnico Nacional Centro Mexicano para la Producción más LimpiaCiudad de México 07340Mexico

The removal of Cr,sulfates and Chemical Oxygen Demand(COD)from industrial tannery wastewater by chemical precipitation was carried out using Calcium oxide(CaO)and Calcium hydroxide(Ca(OH)2).Different doses of alkalis,ranging from deficiency to excess hydroxyl species over the stoichiometric necessary,were used to remove theoretically the 100%of Cr[0.3-3.2 g alkali·(g Cr^3+)^-1].The precipitation was carried out at room temperature,10 min of vigorous stirring,200 r·min^-1 and a settling time of 24 h,followed by separation and characterization of liquid *** result of addition of alkalis,pH underwent increase as did the alkali *** removal of Cr,and sulfates also increased as alkali concentration did,although for first species the changes at higher alkali contents were less *** removal on the other hand,did not follow a unique trend,instead exhibited a *** on our results,selection of a specific dose of alkali was carried out taking as reference the efficiency on total chromium removal,keeping the pH in the range 7 to 9 to ensure Cr precipitation as chromium *** those conditions,jar test was used to produce enough liquid product in order to determine the removal percent of several other *** removal percent of the species was as follows:Cr,sO4^2-,ZnsO4,FesO4,CN^-1,NisO4,Fe2[Fe(CN)6]at 99.8%,66.9%,99.6%,21.4%,70.9%,52.8%and 76.4%with CaO,and 99.8%,61.6%,99.9%,7.1%,84.0%,54.4%and 90.5%with Ca(OH)2,respectively.

关键词： Tannery wastewater Alkali removal Chromium sulfates synergistic effect

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具反对合准U空间的线性变换

数学学报 1958年第1期 36-52页

作者：严志达陈雅深南开大学

本文的问题导源于对于实简单李群的测地线的研究.要交这些群,尤其是属于典型群类的,个別的讨论纳入一般的范畴,遂使我们引进了具反对合的准 U 空间这个结构。我们可称他为实准 U 空间以后以 Ur 表示之.(关于详细定义可参考§1)在 Ur 空... 详细信息

本文的问题导源于对于实简单李群的测地线的研究.要交这些群,尤其是属于典型群类的,个別的讨论纳入一般的范畴,遂使我们引进了具反对合的准 U 空间这个结构。我们可称他为实准 U 空间以后以 Ur 表示之.(关于详细定义可参考§1)在 Ur 空间内讨论实的对称和反对称线性变换的分类,所谓实的线性变换者即是与空间内基本反对合

关键词：初等因子数域定理分量一侗化零多项式向量

基于零知识证明的智能合约投票系统设计与实现

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工程科学学报 2023年第4期45卷 632-642页

作者：殷红建朱岩王静郭光来陈娥北京科技大学计算机与通信工程学院北京100083 海信集团控股股份有限公司青岛266071

作为一种具有法律约束力的程序,智能合约为电子投票系统提供了可信执行平台.然而,由于合约部署在公开透明的区块链上,这将为投票内容的有效性与隐私性带来巨大威胁.为了解决上述问题,基于交互式零知识证明技术设计了智能合约投票系统.首... 详细信息

作为一种具有法律约束力的程序,智能合约为电子投票系统提供了可信执行平台.然而,由于合约部署在公开透明的区块链上,这将为投票内容的有效性与隐私性带来巨大威胁.为了解决上述问题,基于交互式零知识证明技术设计了智能合约投票系统.首先,提出了一个新的交互式零知识集合成员关系证明协议,使得投票者在不泄露投票内容的前提下,完成对投票内容有效性的验证,从而避免无效选票对投票系统的影响.其次,本文通过智能合约规范语言sPesC对投票合约进行描述并对投票各个阶段的触发条件进行限定,通过将合约以jar包形式上传至区块链,实现智能合约投票系统的部署和自动化执行.最后,对智能合约投票系统的性能进行分析,实验结果表明该系统投票和计票阶段均可高效实施,为密码协议构造技术与智能合约投票系统的有效结合提供参考.

关键词：零知识证明智能合约投票系统同态加密隐私保护