Integrated Prevention and Control System for Soil Erosion in Typical Black Soil Region of Northeast China

The black soil region of Northeast China is one of the most important food production bases and commodity grain bases in China. However, the continual loss and degradation of precious black soil resources has led to direct threats to national food security and regional sustainable development. Therefore, it is necessary to summarize integrated prevention and control experience of small watersheds in black soil region of Northeast China. Tongshuang small watershed, a typical watershed in rolling hills of typical black soil areas in Northeast China, is selected as the study area. Based on nearly 50 years' experience in prevention and control of soil and water loss, the structures and overall benefits of an integrated prevention and control system for soil and water loss are investigated. Then, the 'three defense lines' tri-dimensional protection system with reasonable allocation of different types of soil and water control measures from the hill top to gully is systematically analyzed. The first line on the top hill can weaken and block uphill runoff and sediment, hold water resources and improve soil property. The second line on the hill can truncate slope length, slow down the runoff velocity and reduce erosion energy. The third line in the gully is mainly composed of waterfall engineering, which can inhibit soil erosion and restore land resources. The 'three defense lines' system is feasible for soil and water loss control of small watersheds in the typical black soil region of Northeast China. Through the application of the in Tongshuang small watershed, There are effective improvements in ecological conditions in Tongshuang small watershed after the application of 'three defense lines' soil and water control system. Moreover, the integrated treatment paradigm for soil and water loss in typical black soil region is compared with that in loess region. The results of this study could offer references and experiences for other small watersheds in typical black soil region of Northeast China.

Innovation in Bio-disaster Prevention and Control Mechanism after Forest Tenure Reform at County Level

Taking Youxi County of Fujian Province as an example,the author introduced basic situations of new bio-disaster prevention and control mechanism for forest resource protection and social service works after the forest tenure reform.Then,the author analyzed new problems faced by bio-disaster prevention and control in forestry.Finally,the author present the existing problems of bio-disaster prevention and control at the county level from five aspects:innovating upon plant quarantine management mechanism;innovation upon survey methods and service modes of bio-disaster monitoring;strengthening and improving construction of bio-disaster monitoring and forecasting network;innovating upon management system for bio-disaster prevention and control;speeding up construction of service system for social prevention and control of bio-disasters.

The Occurrence and Prevention of Filamentous Algae in Ecological Purification System of Micro-polluted Water

[ Objective ] The aim was to study the influence of filamentous algae on the process of water ecological purification. [ Method ] The occurrence mechanism of filamentous algae and its ecological system were summarized and analyzed. Considering the ecological purification in north- ern Jiangsu, the occurrence and prevention of filamentous algae in water, the method to prevent filamentous algae in polluted water was discussed. [ Result] The results showed that by measures of improving planting density, regular harvesting, and water flow state control before the filamentous algae blooming period, together with improving local pH value, light interference and ecological control during the blooming period, can effectively control the filamentous algae blooming. [ Condusion] The study of the happening mechanism of filamentous algae provided theoretical references and the technical basis in the work of filamentous algae prevention and control.

项目制对疾病防控工作的影响及改进分析

文章介绍了项目制中,项目通过转移支付在疾控纵向服务体系内的生成过程。分析了项目制的执行过程中,给疾病防控工作带来的工作碎片化、不利于服务终端集中力量开展整体性的防控、对人才的锁死和禁锢等问题。在此基础上,提出了转变经费拨付方式,加大地方政府在疾病防控中的责任并适时提升疾病防控经费的投入,允许基层财政对疾控经费针对本辖区疾病防控的流行特点打包使用,鼓励各级疾控机构适当开展社会性服务以补充工作经费的不足等建议,以期改善疾病防控项目制效果。

Multi-softman智能入侵防御系统的研究

针对传统入侵检测技术难以适应大流量、高带宽的动态网络环境的局限性,在对软件人(SM)的基本理论和智能特性研究基础上,受其启发提出了基于群体软件人(MSM)的智能入侵防御系统协作控制模型。模型采取无控制中心的群体软件人分布式体系结构,避免了单个中心分析器带来的单点失效问题;同时该系统还充分利用了软件人智能协商控制机制,有效地解决信任社区内与社区间的协同预警及防御问题,也为网络安全防范提供了新的研究思路。

中国地方政府专项债务的研究热点与趋势展望——基于CiteSpace的文献计量分析

地方政府专项债务已经成为一个全新的社会热点和学术议题。研究运用CiteSpace的可视化分析工具,对2015—2024年中国知网数据库收录的相关文献进行计量分析,绘制出专项债务研究的科学知识谱系,结合文献的深度研读,归纳总结已有研究的主要内容和趋势展望。研究发现,国内专项债务研究正处于快速发展的阶段,现有研究主要集中在债务风险、信息披露、绩效管理、偿债能力四大热点主题,乡村振兴和绿色发展是专项债务研究的新热点。但核心作者和研究机构之间的合作尚有不足。基于此,提出进一步统筹分析风险防控与经济发展的关系,融合理论阐述与实践研究,引入跨学科研究方法和大数据模型的综合应用及探索专项债务制度的演进逻辑等方面的展望。

基于双重预防机制的高校实验室风险分级管控研究——以新疆工程学院自治区煤矿重点实验室为例

基于双重预防机制,建立合理的安全评价指标体系是对高校实验室风险分级管控的关键。结合高校实验室发生事故统计分析,按严重程度对危险有害因素进行排序,根据能量意外释放理论、两类危险源理论进行危险有害因素的辨识与分析,在此基础上,新疆工程学院实验室结合层次分析法和专家评议构建了实验室模糊综合评价指标体系。最后,根据实验室综合评价等级,提出了完整的新疆工程学院实验室风险分级管控措施。

云南省大坝白蚁危害分析与分级预防体系建立

为了构建云南省大坝白蚁危害分级预防体系,以实现对大坝白蚁危害的精准防治,采用Ⅲ类危害归一化算法优化白蚁危害处数的统计方式,提出了大坝原始白蚁危害密度的评价方法,选取影响白蚁危害的6项因子,并运用熵权-TOPSIS方法确定了影响因子权重及其对白蚁危害的综合评分。结果表明:云南省大坝白蚁危害呈现南部及西南部较严重,西北部与东北部较轻微的分布态势,综合评分与原始白蚁危害密度呈现高度一致性,验证了评分结果的可靠性。基于此,按不同分值区间建立了一般、中等和重点防范区三级预防体系,并制定了相应的防治措施。研究成果可为云南省大坝白蚁危害精准防治提供科学指导,对其他地区白蚁预防工作具有一定借鉴意义。

锂离子电池储能系统安全防控技术研究进展

以锂离子电池为代表的电化学储能技术是当下新型储能领域装机规模最大、应用范围最广的储能技术。随着锂离子电池储能系统的装机规模增长,储能系统的安全问题已成为限制其进一步大规模应用的瓶颈,需要针对储能系统安全防控技术进行研究与开发。锂离子电池储能系统的安全防控理念贯穿于电池制造、电站设计建设、电站运行维护、事故后消防等环节。从锂离子电池本征安全、热失控蔓延与抑制、热失控监测预警、储能系统热管理、储能系统多级安全防控等五个方面分析评述了锂电池储能安全防控技术研究进展。

社交媒体平台网络暴力防治效果评价指标构建及实证研究

[研究目的]网络暴力严重破坏网络生态,影响社会公众安全感。对社交媒体平台网络暴力防治效果进行评价,发现预防与治理网络暴力的切入点和着力点,有助于防范化解网络内容风险,为维护网络安全提供决策参考。[研究方法]基于信息生态理论,运用德尔菲法和层次分析法从信息人、信息、信息技术、信息环境4个维度构建社交媒体平台网络暴力防治效果评价指标体系,并采用模糊综合评价法结合网络暴力案例对指标体系进行实证研究。[研究结果/结论]社交媒体平台网络暴力防治效果评价指标体系由11个一级指标和27个二级指标构成,涵盖网络暴力防治效果的过程性要素和结果性要素。实证结果表明,构建的指标体系具有较强的科学性和应用价值,可作为社交媒体平台动态评估和提升其网络暴力防治效果的指引,并有助于相关监管部门进一步完善网络暴力治理机制。

胡家河煤矿工作面通风及瓦斯治理设计

为实现稳定安全的开采目标,分析了胡家河煤矿401106工作面情况,设计了U型通风系统和瓦斯防治工作方案,采取采前预抽的策略,有效地消除瓦斯安全隐患;设计了安全监测监控系统布置方案,对井下的环境参数进行动态监测。所得研究结果,当风量为1700 m3/min时能够满足安全生产的要求。该工作面采用的瓦斯安全系统与通风系统均有良好的应用成效。

基于三维可视化技术的消防安全预警防控体系建设

利用BIM技术对建筑进行三维可视化建模研究,建立了有效的消防安全预警防控体系。在系统建设的基础上,以商住两用高层建筑为例,对其烟气扩散、温度分布及能见度分布进行仿真,通过BIM技术建模,优化预警防控体系,旨在为后续体系的完善提供参考。

岸线综合态势防控系统设计及实现

随着技术的不断进步和应用场景的持续拓展,岸线综合态势防控系统将迎来更加广阔的发展空间。本文介绍了岸线综合态势防控系统的设计与实现过程,包括系统设计思路、关键技术实现、系统功能模块以及应用效果。该系统集成了地理信息系统(GIS)、视频监控、雷达探测、环境传感器等多种技术手段,构建了一个高效、智能的岸线防控平台,可实现对岸线区域全面、实时的态势感知与防控。相关研究皆在为提升岸线安全管理和应急响应能力提供了技术支持。

城市摊贩经营活动安全风险防控体系研究

随着社会的发展和城市化进程的加快,日趋增多的城市摊贩经营活动给居民日常生活提供了便利。摊贩经营活动产生的各种安全事故频发,成为公共安全领域的重大隐患。现有的安全风险防控体系面临摊贩经营主体安全风险防控意识不足、防控检测设施利用率低、预警信息传送渠道受阻等困境,应采取不断优化空间规划、创新数字赋能、加强智慧管理、拓宽信息传递渠道等措施形成管控合力,促进城市摊贩安全风险防控体系立体化建设,从而实现城市摊贩经营活动的科学预防和有效处置,维护社会和谐稳定。

轨道小车物流系统验收方法研究

轨道小车物流系统的验收方法在行业内尚无统一标准或规范。在医院尚未开诊情况下,结合其他医院临床使用经验,模拟早晚两个使用高峰时间段,对轨道小车物流系统进行空车模拟运行测试和载重模拟运行测试,运行3周时间,每天做好故障记录,最终形成模拟运行测试报告。67辆物流小车中有22辆小车出现了异常解锁停车、未知原因卡顿、无法出站等问题,将故障记录反馈给厂家,便于厂家进行分析解决。

基于B/S架构的防汛防旱抢险数字化管理系统研究

针对传统的防汛防旱抢险管理方式难以实现高效、精准、及时响应的问题,研究了一种基于B/S架构的防汛防旱抢险数字化管理系统。分析了该系统的技术特性,探讨了系统的框架体系、通用业务组件、应用管理平台和开发功能结构等。

CYP11B2 expression in HSCs and its effect on hepatic fibrogenesis

INTRODUCTIONIt has been reported that renin-angiotensin systemexists in tissue and aldosterone can be synthesizedin extra-adrenal tissue including heart,bloodvessels and brain.Recent studies have broughtrich evidences in favour of aldosterone as a strongstimulator of fibrogenesis and mitogenesis.

Corticoreticular tract lesion in children with developmental delay presenting with gait dysfunction and trunk instability

The corticoreticular tract （CRT） is known to be involved in walking and postural control. Using diffusion tensor tractography （DTT）, we investigated the relationship between the CRT and gait dysfunction, includ- ing trunk instability, in pediatric patients. Thirty patients with delayed development and 15 age-matched, typically-developed （TD） children were recruited. Fifteen patients with gait dysfunction （bilateral trunk instability） were included in the group A, and the other 15 patients with gait dysfunction （unilateral trunk instability） were included in the group B. The Growth Motor Function Classification System, Functional Ambulation Category scale, and Functional Ambulation Category scale were used for measurement of functional state. Fractional anisotropy, apparent diffusion coefficient, fiber number, and tract integrity of the CRT and corticospinal tract were measured. Diffusion parameters or integrity of corticospinal tract were not significantly different in the three study groups. However, CRT results revealed that both CRTs were disrupted in the group A, whereas CRT disruption in the hemispheres contralateral to clinical mani- festations was observed in the group B. Fractional anisotropy values and fiber numbers in both CRTs were decreased in the group A than in the group TD. The extents of decreases of fractional anisotropy values and fiber numbers on the ipsilateral side relative to those on the contralateral side were greater in the group B than in the group TD. Functional evaluation data and clinical manifestations were found to show strong correlations with CRT status, rather than with corticospinal tract status. These findings suggest that CRT status appears to be clinically important for gait function and trunk stability in pediatric patients and DTT can help assess CRT status in pediatric patients with gait dysfunction.

煤岩瓦斯复合动力灾害监测预警与防控技术研究进展

煤岩瓦斯复合动力灾害是深部煤炭开采的重大安全隐患,探明其致灾机理、发展监测预警及防控技术是防治关键。提出了煤岩瓦斯复合动力灾害防治“四面体”理论,即分别从灾害分类、灾害机理、灾害预警、灾害防控4个层面概述煤岩瓦斯复合动力灾害研究进展。总结了以能量释放主体、初始瓦斯压力、载荷条件为主的复合动力灾害类型划分依据;梳理了理论分析尺度和实验室尺度下的复合动力灾害机理研究进展,发现应力路径、微裂纹动态演化和煤岩赋存地质因素临界指标是致灾机理研究的关键;概述了以前期灾害前兆信息判识、中期灾害前兆信息采集、后期灾害一体化监测预警为主线的复合动力灾害监测预警技术研究进展;揭示了复合动力灾害消能减灾一体化防控技术和多尺度分源防控关键技术科学内涵。在此基础上针对两淮矿区灾害特点,提出了深部强动载条件下复合动力灾害智能判识与预警方法和分区协同防控方法。基于当前研究进展,提出了煤岩瓦斯复合动力灾害研究亟待解决的问题,助力实现深部煤炭安全、精准、高效开采。

贵州裸露型岩溶地下河系统污染防治技术——以遵义坪桥地下河系统污染防治工程为例

裸露型岩溶区岩溶强发育、水文地质条件复杂,受污染的地下河系统通道隐蔽性强、污染防治难度大。本文以坪桥地下河系统污染防治工程为例,在近污染源的主径流通道实施“地下水防渗帷幕+污水抽排”工程措施实现近源截排。施工面临岩溶破碎地层易掉块卡埋钻、钻效低及岩溶强发育段浆液扩散距离远等难题。通过配备适宜的钻进工艺,采取纯压式灌浆、水泥砂浆灌填溶洞、低压限量及速凝浆液灌注等灌浆控制措施,保证了工程进度质量,实现了源头治理污染地下水的目的。“近源截排”对类似水文地质条件下地下水污染防治提供可借鉴的地学治理模式。