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Lattice-based autonomous path proxy re-encryption in the standard model

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Science China(Information Sciences) 2023年第10期66卷 184-195页

作者： Wenli XIE Jian WENG Yao TONG xiaojian liang Lisha YAO Feixiang ZHAO College of Cyber Security Jinan University Guangzhou Fongwell Data Limited Company

Autonomous path proxy re-encryption(AP-PRE) is a type of PRE that implements control on the delegation path in a multi-hop PRE. AP-PRE forces the proxy to perform the transformation along a predefined path without revealing the underlying plaintext. There are several applications of AP-PRE,including electronic medical systems, data sharing, and email systems. However, as far as we know, the existing AP-PRE scheme is provably secure in the random oracle model under the classical number-theoretic assumption, which might be vulnerable to quantum computers. Therefore, it raises the intriguing question of how to construct a quantum-resistant AP-PRE scheme. In this study, we proposed an AP-PRE scheme based on the widely accepted quantum-resistant learning with errors(LWE) assumptions. Our scheme supports the polynomial length of the delegation path. Furthermore, our scheme is proved to be selective-path CPA(sCPA) secure in the standard model under LWE assumptions.

关键词： autonomous path proxy re-encryption proxy re-encryption lattice-based cryptography learning with errors controlled delegation

Effect of graphene modified semi-conductive shielding layer on space charge accumulation in insulation layer for high-voltage direct current cable

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High Voltage 2022年第3期7卷 545-552页

作者： Guochang Li Xuejing Li Fan Zhang xiaojian liang Mingyue Liu Yanhui Wei Shengtao Li Chuncheng Hao Qingquan Lei Institute of Advanced Electrical Materials Qingdao University of Science and TechnologyQingdaoChina State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong UniversityXi'anChina

Space charge accumulation in the insulation layer of high-voltage direct current(HVDC)cable is one of the key factors restricting the development of HVDC *** inner semi-conductive layer as an important structure of cable will affect the charge accumu-lation characteristics in the insulation *** work intends to explore the method of modifying the semi-conductive layer with graphene,to suppress charge accumulation in the insulation ***,the semi-conductive layer with different contents of Graphene(G)and carbon black(CB)are ***,the morphology and surface roughness of the cross section are ***,the effects of the semi-conductive layer on space charge accumulation of the insulation layer are studied by pulsed electro-acoustic method and thermal stimulation depolarisation current *** experimental re-sults show that a moderate amount of graphene replacing CB can effectively reduce charge accumulation in the insulation layer and inhibit positive temperature coefficient(PTC)effect at the same *** surface roughness of specimens decreases with the increase of G content from 0 to 3 phr(parts per hundreds of resin),when the CB content decreases from 25 to 10 phr,the surface roughness of specimen *** resistivity test shows that doping G can significantly inhibit the PTC effect of the semi-conductive *** volume resistivity of the semi-conductive layer decreases with the increase of G content and CB *** addition,charge accumulation of the insulation layer rises and then drops under the action of the semi-conductive layer.

关键词： insulation conductive layer

Classification and treatment strategy for Moyamoya disease-related aneurysms

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Chinese Neurosurgical Journal 2024年第1期10卷 1-7页

作者： Yangchun Hu xiaojian Wang Chao Li liang Zhao Jing Luo Lei Ye Baochun Cheng Department of Neurosurgery The First Affiliated Hospital of Anhui Medical UniversityJixi 218Hefei 230022People’s Republic of China

Background Moyamoya disease(MMD)is a cerebrovascular disorder characterized by progressive unilateral or bilateral stenosis of the distal internal carotid *** hemodynamic features in MMD patients alter,the comorbidity of intracranial aneurysm(IA)is sometimes observed *** aim to investigate clinical characteristics and therapeutic strategies for the comorbidity of Moyamoya disease with intracranial aneurysms(MMD-IA).Methods A total of 13 MMD-IA patients were recruited in this study and were manifested to be intracranial *** reviewed the surgical technique notes for all *** According to the locations of an aneurysm,MMD-IA could be divided into several categories:(1)MMD-IA at a circle of Willis—aneurysms usually located at the trunk of Willis circle;(2)MMD-IA at collateral anastomosis—aneurysms located at the distal end of collateral anastomosis;and(3)MMA-IA at basal ganglia *** this report,aneurysms in 10 patients located at Willis circle,2 at the pericallosal artery,and 1 at the basal ganglia *** them,endovascular embolism was performed among 5 *** clipping was conducted among 7 patients.A patient with an aneurysm at the basal ganglia region just accepted revascularization *** the treatments were ***-up studies,ranging from 6 to 24 months,demonstrated all patients received satisfactory curative *** Diverse clinical presentations could be observed among MMD-IA *** neurosurgical treatments should be chosen according to the locations of the aneurysm.

关键词： Moyamoya disease Aneurysm Clipping Revascularization Endovascular embolism

Disruption of PABPN1 phase separation by SNRPD2 drives colorectal cancer cell proliferation and migration through promoting alternative polyadenylation of CTNNBIP1

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Science China(Life Sciences) 2024年第6期67卷 1212-1225页

作者： Zhijie Hu Mengxia Li Yufeng Chen Liutao Chen Yuting Han Chengyong Chen Xin Lu Nan You Yawen Lou Yingye Huang Zhanfeng Huo Chao Liu Cheng liang Susu Liu Ke Deng liangfu Chen Shangwu Chen Guohui Wan xiaojian Wu Yonggui Fu Anlong Xu State Key Laboratory of Biocontrol Guangdong Province Key Laboratory of Pharmaceutical Functional GenesDepartment of BiochemistrySchool of Life SciencesSun Yat-sen UniversityGuangzhou 510275China Department of General Surgery(Colorectal Surgery)&Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases&Biomedical Innovation Center The Sixth Affiliated HospitalSun Yat-sen UniversityGuangzhou 510655China National-Local Joint Engineering Laboratory of Druggability and New Drug Evaluation National Engineering Research Center for New Drug and Druggability(cultivation)Guangdong Province Key Laboratory of New Drug Design and EvaluationSchool of Pharmaceutical SciencesSun Yat-sen UniversityGuangzhou 510006China School of Life Sciences Beijing University of Chinese MedicineBeijing 100029China

Generally shortened 3′UTR due to alternative polyadenylation(APA)is widely observed in cancer,but its regulation mechanisms for cancer are not well ***,with profiling of APA in colorectal cancer tissues and poly(A)signal editing,we firstly identified that the shortened 3′UTR of CTNNIBP1 in colorectal cancer promotes cell proliferation and *** found that liquid-liquid phase separation(LLPS)of PABPN1 is reduced albeit with higher expression in cancer,and the reduction of LLPS leads to the shortened 3′UTR of CTNNBIP1and promotes cell proliferation and ***,the splicing factor SNRPD2 upregulated in colorectal cancer,can interact with glutamic-proline(EP)domain of PABPN1,and then disrupt LLPS of PABPN1,which attenuates the repression effect of PABPN1 on the proximal poly(A)*** results firstly reveal a new regulation mechanism of APA by disruption of LLPS of PABPN1,suggesting that regulation of APA by interfering LLPS of 3′end processing factor may have the potential as a new way for the treatment of cancer.

关键词： alternative polyadenylation colorectal cancer CTNNBIP1 PABPN1 liquid-liquid phase separation SNRPD2

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高速铁路泥岩隧道仰拱底鼓控制技术研究

铁道工程学报 2024年第5期41卷 46-51页

作者：梁庆国赵涛贾良何文敏苏晓健兰州交通大学兰州730070 陕西铁路工程职业技术学院渭南714000 山东高速基础设施建设有限公司济南250101

研究目的:为分析基底围岩劣化作用下泥岩隧道仰拱底鼓变形的控制效果,运用数值模拟的研究方法,建立高速铁路泥岩隧道有限元模型,考虑隧道开挖条件下模拟基底围岩吸湿膨胀和软化作用,选用底板与锁脚锚杆加固的控制技术,对比分析加固前后... 详细信息

研究目的:为分析基底围岩劣化作用下泥岩隧道仰拱底鼓变形的控制效果,运用数值模拟的研究方法,建立高速铁路泥岩隧道有限元模型,考虑隧道开挖条件下模拟基底围岩吸湿膨胀和软化作用,选用底板与锁脚锚杆加固的控制技术,对比分析加固前后隧周围岩的竖向位移、填充层及仰拱的变形特性。研究结论:(1)锚杆加固基底可有效控制隧底围岩隆起,对隧底隆起的控制效果膨胀阶段优于软化阶段;(2)锚杆加固前后仰拱、填充层的底鼓位移曲线均呈“钟形”对称分布;(3)仰拱、填充层中心位置处的底鼓变形最大;(4)本研究结果可为高速铁路泥岩隧道仰拱底鼓病害防治与加固提供参考依据。

关键词：仰拱底鼓控制技术泥岩隧道膨胀软化

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东方宗教思想与生态环境保护

世界宗教研究 2006年第1期 8-14页

作者：梁晓俭同济大学环境法研究所

本文对如何整治当前存在的环境保护和生态建设的问题提出看法,认为在东方思想中一直存在着与生态保护有关系的丰富思想,其中天人合一的思维模式和人与自然相协调的观念,以及珍视生命的权利等等都具有极其重要的现代生态学意义。解决环... 详细信息

本文对如何整治当前存在的环境保护和生态建设的问题提出看法,认为在东方思想中一直存在着与生态保护有关系的丰富思想,其中天人合一的思维模式和人与自然相协调的观念,以及珍视生命的权利等等都具有极其重要的现代生态学意义。解决环境与生态的问题,除了必要的技术手段和法律法规之外,思想观念的改变与心灵的提升也是必不可少的,东方宗教的思想重视人心的建设,可以弥补因技术落后而带来的不足。

关键词：环境保护生态学东方宗教天人合一珍视生命人与自然

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教育出版服务主导数字化转型与营销策略研究

出版科学 2017年第4期25卷 28-34,39页

作者：梁小建南开大学文学院天津300071

在数字教育资源建设与应用文献综述和现状研究的基础上,对信息技术在教育和教育出版领域引发的创新进行梳理,使用颠覆性创新理论和战略合法性理论考察教育领域和教育出版领域的创新类型。在此基础上对教育出版数字化转型进行研究,明确... 详细信息

在数字教育资源建设与应用文献综述和现状研究的基础上,对信息技术在教育和教育出版领域引发的创新进行梳理,使用颠覆性创新理论和战略合法性理论考察教育领域和教育出版领域的创新类型。在此基础上对教育出版数字化转型进行研究,明确提出教育出版服务主导型数字化转型目标是开发混合教学平台。最后采用4Ps营销理论对混合教学平台营销策略进行研究。

关键词：教育出版颠覆性创新混合教学平台在线教育

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我国学术期刊的国际话语权缺失与应对

出版科学 2014年第6期22卷 12-16页

作者：梁小建南开大学文学院天津300071

我国学术期刊缺乏国际话语权的根本原因是我国学术期刊在公信力、期刊质量和传播能力等方面与国际领先期刊相比,尚有差距。提高出版质量是我国学术期刊增强国际话语权的治本之道。学术期刊要完善审稿制度,增强学术期刊公信力;管理部门... 详细信息

我国学术期刊缺乏国际话语权的根本原因是我国学术期刊在公信力、期刊质量和传播能力等方面与国际领先期刊相比,尚有差距。提高出版质量是我国学术期刊增强国际话语权的治本之道。学术期刊要完善审稿制度,增强学术期刊公信力;管理部门要完善学术期刊出版和评价体系,遴选和培育学术名刊;管理部门要建设学术期刊公益出版数据库,增强互联网传播能力。

关键词：审稿期刊评价数据库公益

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我国学术资源网络数据库公益出版研究

出版科学 2015年第5期23卷 20-24页

作者：梁小建南开大学文学院天津300071

论文提出并系统论证了学术资源网络数据库公益出版理念。学术资源网络数据库公益出版的主体是科研基金和出版基金,客体是科研项目成果和资助出版的学术期刊、学术专著。数据库定位为面向个人用户的基本公共信息服务。

关键词：信息资源学术出版数据库公益