检索结果-南通市图书馆

探究拒不履行信息网络安全管理义务罪中的义务定义模式及问题——以网络暴力的规制为视角

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

法学（汉斯） 2024年第6期12卷 3739-3745页

作者：赵智越陈诗梵张逸群赵迎春中国计量大学法学院浙江杭州

拒不履行信息网络安全管理义务罪的前置条件是网络服务提供者不履行法律、行政法规规定的信息网络安全管理义务而被监管部门责令采取改正措施却拒不改正。然而,法律及相关司法解释并未明确规定信息网络安全管理义务,本文把信息网络安全... 详细信息

拒不履行信息网络安全管理义务罪的前置条件是网络服务提供者不履行法律、行政法规规定的信息网络安全管理义务而被监管部门责令采取改正措施却拒不改正。然而,法律及相关司法解释并未明确规定信息网络安全管理义务,本文把信息网络安全管理义务的定义模式归纳为“概括式+列举式”的双重定义模式,以概括式概念保证规制开放性,辅以列举式义务将监管部门行政行为具体化。但是,该义务模式之下还存在义务来源欠合理、“列举式”涉及种类过少以及“概括式”过于开放的问题,应对义务来源进行教义限制并分别弥补两种模式的缺陷。

关键词：信息网络安全管理义务双重定义网络暴力

“1+1>2”:Highly efficient removal of organic pollutants by composite nanofibrous membrane based on the synergistic effect of adsorption and photocatalysis

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2022年第29期124卷 76-85页

作者： Yuanting Xu Wanting Lin Dandan Yuan shifan chen Fang Li Yanping Long Chao He Weifeng Zhao Changsheng Zhao College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China Department of Polymer Science and Engineering Zhejiang UniversityHangzhou 310027China Med-X Center for Materials Sichuan UniversityChengdu 610041China College of Chemical Engineering Sichuan UniversityChengdu 610065China

Adsorption and photocatalysis are regarded as two desirable technologies for wastewater remediation,but are still unsatisfactory in removal effect,eco-friendly regeneration and facile *** this study,we developed a composite nanofibrous membrane material with excellent removal performance for organic pollutants based on synergistic adsorption and photocatalysis.A novel boron-doped,nitrogen-deficient graphitic carbon nitride(B-C3N4)photocatalyst as well as an amphiphilic copolymer of methyl methacrylate and acrylic acid(p(MMA-AA))were synthesized respectively,and then used to modify polyethersulfone for the fabrication of composite nanofibrous membrane with improved hydrophilicity,negativelycharge property and enhanced visible light response ***,the synergistic effect of adsorption and photocatalytic degradation for organic pollutants were identified especially and resulted in an excellent removal efficiency even superior to the combination of adsorption and photocatalytic degradation,which could be called a“1+1>2”*** addition,the regeneration and reusability,the purification ability for multicomponent wastewater,and the photocatalytic mechanism,were investigated and discussed *** this work,we not only prepared the nanofibrous membrane with synergistic effect of adsorption and photocatalysis,but also provided a versatile approach to design dualfunctional support material to ensure the practical applications of powdery photocatalyst in wastewater treatment.

关键词： Composite nanofibrous membrane material Wastewater remediation Photocatalytic degradation Adsorption Synergistic effect

Efficacy of substances containing 3 types of active ingredients-saponins, flavones, and alkaloids in regulation of cytokines in autoimmune diseases a systematic review and Meta-analysis based on animal studies

在线全文

学校读者我要写书评

暂无评论

Journal of Traditional Chinese Medicine 2024年第3期44卷 417-426页

作者： ZHU Ruifang ZHANG Jun LYU Yaru chen Yulu HAN shifan WANG Hongwei Key Laboratory for Molecular Diagnosis and Treatment of Hematologic Diseases Second Hospital of Shanxi Medical UniversityShanxi 030001China School of Nursing Shanxi Medical UniversityShanxi 030001China Editorial Office First Hospital of Shanxi Medical UniversityShanxi 030001China

OBJECTIVE: To investigate the efficacy of substances containing 3 types of active ingredients-saponins,flavones, and alkaloids on experimental animals with autoimmune diseases(AIDs).METHODS: The protocol for this systematic review and Meta-analysis was prospectively registered with PROSPERO(CRD42023395741). Searches were conducted in the China National Knowledge Infrastructure, Wanfang, Chinese Science and Technology Journals, China Biomedical, Pub Med,Cochrane Library, and Embase databases to screen for animal studies investigating the therapeutic effects of saponins, flavones, or alkaloids on autoimmune diseases;consequently, corresponding data extraction tables were prepared. Systematic Review Centre for Laboratory Animal Experimentation was used to assess the risk of methodological bias in the included literature. RevMan 5.4 was used for the Meta-analysis on the 8 serum ***: A total of 31 studies were included, all of which were randomized controlled studies. Meta-analysis indicated that substances rich in saponins, flavones, and alkaloids reduced serum levels of interleukin(IL)-1β[standardized mean difference(SMD) =-1.94, 95%confidence interval(CI)(-2.99,-0.90), P = 0.0003], IL-6 [SMD =-1.65, 95% CI(-2.33,-0.97,) P < 0.000 01],IL-17 [SMD =-2.41, 95% CI(-3.61,-1.20), P <0.0001], tumor necrosis factor(TNF)-α [SMD =-1.84, 95%CI(-2.61,-1.06), P < 0.0001], and interferon(IFN)-γ[SMD =-1.54, 95% CI(-2.43,-0.65), P = 0.0007], but increased serum levels of IL-4 [SMD = 1.30, 95% CI(0.15,2.44), P = 0.03) and IL-10 [SMD = 2.05, 95% CI(1.39,2.70), P < 0.000 01) in animal models. However, no significant regulatory effect of these three active components was observed on serum levels of IL-2 [SMD =-0.63, 95% CI(-1.82, 0.57), P = 0.30].CONCLUTIONS: Substances containing saponins,flavones, and alkaloids regulated the changes of immunerelated cytokines, it may be a novel dietary substance to relieve and control autoimmune diseases in the future.

关键词： autoimmune diseases saponins flavones alkaloids system evaluation Meta-analysis

在线全文

学校读者我要写书评

暂无评论

甘蔗机械化种植参数优化研究

农机化研究 2013年第12期35卷 40-43页

作者：陈世凡广西壮族自治区农业机械化技术推广总站南宁530004

研究了甘蔗机械化种植主要参数(即深耕深度、培土高度和种植深度)对试验指标甘蔗产量的影响,采用3因素3水平的正交试验及田间全程机械化种植收获试验。对试验结果进行极差分析和方差分析,获得了甘蔗全程机械化种植的较优化种植方式及参... 详细信息

研究了甘蔗机械化种植主要参数(即深耕深度、培土高度和种植深度)对试验指标甘蔗产量的影响,采用3因素3水平的正交试验及田间全程机械化种植收获试验。对试验结果进行极差分析和方差分析,获得了甘蔗全程机械化种植的较优化种植方式及参数。这对提高甘蔗种植产量、促进甘蔗生产全程综合农机化技术的推广应用具有重要意义。

关键词：甘蔗机械化种植参数优化正交试验

基于声学有限元的柴油机增压器压气机气动噪声研究

在线全文

学校读者我要写书评

暂无评论

内燃机工程 2020年第3期41卷 81-86页

作者：刘扬刘晨陈世凡申华重庆江增船舶重工有限公司重庆402263 哈尔滨工程大学动力与能源工程学院哈尔滨150001

为研究船用低速柴油机增压器压气机气动噪声,采用计算流体动力学和声学有限元的混合计算方法进行了数值预测。通过试验对压气机计算模型进行了验证。在3个工况下对压气机非定常流场进行了计算,其中压力脉动被用作声学计算中的声源信息;... 详细信息

为研究船用低速柴油机增压器压气机气动噪声,采用计算流体动力学和声学有限元的混合计算方法进行了数值预测。通过试验对压气机计算模型进行了验证。在3个工况下对压气机非定常流场进行了计算,其中压力脉动被用作声学计算中的声源信息;采用声学有限元方法对压气机气动噪声进行了预测。结果表明:计算流体力学和声学有限元的混合计算方法具有较高的计算精度,可以用于压气机气动噪声数值预测;压气机进口气动噪声主要谱成分为离散单音噪声和宽频噪声;离散单音噪声在叶片通过频率处有明显的指向性,存在两个突出峰值。

关键词：增压器压气机气动噪声声学有限元船用柴油机

基于弱可压缩模型的抽蓄电站引水系统数值模拟

在线全文

学校读者我要写书评

暂无评论

排灌机械工程学报 2014年第9期32卷 765-770页

作者：陈世凡周大庆陈洋河海大学能源与电气学院江苏南京211100

通过建立全三维的弱可压缩流体模型,利用求解非定常三维N-S方程的方法,在阀门出口边界加入流量随时间变化的程序,以模拟抽水蓄能电站的甩负荷工况,并对不同水体模型下的情况进行模拟,得到了引水管道内各测量断面压力与流量、调压井内水... 详细信息

通过建立全三维的弱可压缩流体模型,利用求解非定常三维N-S方程的方法,在阀门出口边界加入流量随时间变化的程序,以模拟抽水蓄能电站的甩负荷工况,并对不同水体模型下的情况进行模拟,得到了引水管道内各测量断面压力与流量、调压井内水位随时间的变化规律,以及管道出口处压力、管道内部水流流态的变化规律,并参照试验数据与不可压缩流体模型及一维特征线方法进行对比.结果表明:在考虑流体可压缩性的情况下,弱可压缩模型结果较不可压缩模型更接近试验数据,提高约0.16%;而弱可压缩模型阀门出口处的压力头值,较不可压缩模型低10.87 m.而流态分析表明,数值模拟方法在管道内流态的表现以及在调压井的波动方面,相比一维特征线方法更有优势.结论可为研究抽水蓄能电站引水系统甩负荷工况提供新的参考,并为精确的数值模拟计算提供新的思路和方法.

关键词：抽蓄电站引水系统甩负荷过渡过程弱可压缩流体模型数值模拟

在线全文

学校读者我要写书评

暂无评论

对自闭症儿童进行心理理论训练的研究综述

学前教育研究 2005年第5期 26-28页

作者：陈仕范湖南儿童工程职业学院 410100

对自闭症儿童进行心理理论训练具有重要的理论和临床意义。这些训练研究发现自闭症儿童的类似能力有限,支持了心理理论原发性亏空理论;并提供了一些特殊的训练程序和方法,为以后的心理理论的训练研究打下了基础。

关键词：自闭症儿童心理理论训练研究综述训练程序幼儿园幼儿教育

在线全文

学校读者我要写书评

暂无评论

低水头贯流式水轮机运行特性数值仿真

排灌机械工程学报 2013年第10期31卷 856-861页

作者：周大庆陈世凡李超河海大学可再生能源发电技术教育部工程研究中心江苏南京211100

通过建立非稳态过程的三维湍流数值模拟方法,设定进口压力呈周期性变化,且在转轮转速处于变化和不变的情况下,对某种新型无调速机构的低水头贯流式水轮机的运行特性进行了数值模拟.数值计算结果表明:在转轮转速随进口压力变化,且进口压... 详细信息

通过建立非稳态过程的三维湍流数值模拟方法,设定进口压力呈周期性变化,且在转轮转速处于变化和不变的情况下,对某种新型无调速机构的低水头贯流式水轮机的运行特性进行了数值模拟.数值计算结果表明:在转轮转速随进口压力变化,且进口压力呈振幅为14%的正弦变化时,转速增大和减小的幅度分别为0.76%,0.21%,且其变化趋势滞后进口压力变化1/4周期;而流量的变化在极值处分别增大8%和2.5%;受进口压力变化的影响,转速变化时水轮机效率的下降幅度10.76%大于上升幅度4%.结果同时揭示了在2种情况下,水轮机力矩、流量、功率以及效率随时间的变化规律,并分析了在进口压力变化过程中,机组转轮区子午截面、转轮叶片压力场的瞬变过程,可为电站后期电气控制设备的选型提供参考依据.

关键词：低水头贯流式水轮机无调速机构压力变化数值模拟运行特性

Application of Regularization Methods in the Sky Map Reconstruction of the Tianlai Cylinder Pathfinder Array

在线全文

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2024年第2期24卷 24-35页

作者： Kaifeng Yu shifan Zuo Fengquan Wu Yougang Wang Xuelei chen National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China Key Laboratory of Radio Astronomy and Technology Chinese Academy of SciencesBeijing 100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Cosmology and Astrophysics(Liaoning)&College of Sciences Northeastern UniversityShenyang 110819China Center of High Energy Physics Peking UniversityBeijing 100871China

The Tianlai cylinder pathfinder is a radio interferometer array to test 21 cm intensity mapping techniques in the post-reionization *** works in passive drift scan mode to survey the sky visible in the northern *** deal with the large instantaneous field of view and the spherical sky,we decompose the drift scan data into m-modes,which are linearly related to the sky *** sky map is reconstructed by solving the linear interferometer *** to incomplete uv coverage of the interferometer baselines,this inverse problem is usually ill-posed,and regularization method is needed for its *** this paper,we use simulation to investigate two frequently used regularization methods,the Truncated Singular Value Decomposition(TSVD),and the Tikhonov regularization *** the regularization parameter is very important for its *** employ the generalized cross validation method and the L-curve method to determine the optimal *** compare the resulting maps obtained with the different regularization methods,and for the different parameters derived using the different *** both methods can yield good maps for a range of regularization parameters,in the Tikhonov method the suppression of noisy modes are more gradually applied,produce more smooth maps which avoids some visual artefacts in the maps generated with the TSVD method.

关键词： techniques interferometric-methods numerical-cosmology observations-radio continuum general