Deepening China-Africa Cooperation, Benefiting People’s Health

CHINA and Africa have been a commu- nity of shared interests and shared destiny Their collaboration benefits not only the development of China and Africa but also promotes the unity and cooperation of developing countries. Health cooperation is a powerful testimony to the friendship between Chinese and African people. Based on win-win cooperation and aiming at the well-being of the people, China and Africa have attained fruitful results through health cooperation over the last five decades.

Determination of a Cut-Off Point of a Scale for Achievement Motive in Geriatrics That Predicts the Frequency of Undertaking Instrumental Activities of Daily Living in Community-Dwelling Elderly People

Background: Among elderly people, rehabilitation is important for reducing the risk of falls and hospitalization and to maintain an independent life for longer. Motivation is a factor for elderly people to lead an active daily life and leave home more frequently. Purpose: The purposes of this study were to determine the optimal cut-off point in the Scale for Achievement Motive in Geriatrics (SAMG) that could identify individuals as inactive or active, based on the Frenchay Activities Index (FAI), and to compare characteristics between active and inactive groups classified by the cut-off point. Methods: A cross-sectional study of 285 community-dwelling elderly people measured SAMG and FAI and physical function. Receiver operating characteristic (ROC) analysis was used to calculate the area under the curve (AUC) that was the optimal cut-off point for the SAMG total score, with the associated sensitivity and 1-specificity when compared with the FAI results. Demographic parameters and physical function were compared between two groups defined by cut-off point. Results: The AUC was 0.78, the optimal cut-off for SAMG total score for indicating inactivity was ≤48, the sensitivity was 77.98% and the 1-specificity was 75.00%. The group with SAMG score >48 was characterized by a significantly higher proportion of women, fewer people sharing a house, and participation in more hobbies. Discussion: A cut-off point of 48 in the SAMG could be a predictive index of motivation toward goals for individuals with inactive daily activities. The group with score higher than the cut-off was characterized by more women, fewer people living together, and more hobbies than the group with lower scores.

A People's Gala to Promote Mutual Under standing between China and Other Countries——2012 Understanding and Cooperation Dialogue held by CAFIU

正The Understanding and Cooperation Dialogue, Sponsored by the Chinese Association for International Understanding (CAFIU) and the China Foundation for Peace and Development (CFPD), and Co-organized by the Chinese People' s Association for Peace and

THE BELT AND ROAD FORUM POINTS CLEAR WAY FOR FUTURE COOPERATION

The Belt and Road Forum for International Cooperation(B&R Forum)was held in Beijing on May 14-15,2017.In his address to the Forum,Chinese President Xi Jinping mentioned a series of high-profile achievements under the initiative such as cooperation agreements signed between China and over 40 countries and international organizations.Xi also pledged more Chinese commitments such as an

Development of Tibet at New Historic Starting Point——People in Tibet greet Second Serfs Emancipation Day

March 28 of this year is the second Tibetan Serfs Emancipation Day. People of all nationalities in Tibet marked the day by hoisting the national flag and by singing and dancing. Smiles were on every face and a festive atmosphere pervaded the snowcovered plateau region.

Threads that Can Bind:People of the Frontier Areas in China-India Cooperation

In a context of intense cooperation between China and India under new policy regimes and globalisation,this Essay argues for reviving normal pattern of relationship among people along the frontiers of China and India. These provinces besides being away from the administrative,industrial and production hubs are also marked by one of the highest concentrations of poverty in the Asia-Pacific region,and continue to encounter problems of political legitimacy engendered by geography,history,culture,racial factors,lack of specialized skills,capital formation. Revival of natural relationships may be the strategy for development of frontier provinces of China and India,through construction of trade corridors,exploitation of cultural similarities and enabling participation of communities,even fostering links through a third country. As nationalities or communities sharing similar socio-cultural or primordial oneness are interspersed on both sides of the boundary,it is argued that ethnic communities can be made to play a role in translating ethnic affinities into a lasting,effective,and substantial cooperation:beyond the state-centric security concerns to improve human security. Trading activities along China and Indian frontiers are usually controlled by non-local 'other' people,who are ethnically/racially different from the communities settled at the frontier. Therefore,systematic encouragement of participation of people may negate perceptions of exploitation,domination and alienation by the exclusionary tendencies of trade. These factors which engender contest against the state in the frontiers of China and India can be rectified through encouraging participation of people in the activities of China-India cooperation. Trade along the China and India frontiers may never reach economies of scale and may be statistically insignificant but it can make huge difference to the lives of people living along the frontier. This Essay argues for more border trade points,rather normal trade through the borders and ensuring participation of various ethnic communities spread along the frontiers.

Work in Cooperation for A New Chapter in the Cause of International Human Rights——Speech by Yang Jiechi,Vice Minister of Foreign Affairs of the People's Republic of China at the Inaugural Session of the United Nations Human Rights Council

Mr Chairman, I would like to start by congratulating you, on behalf of the Chinese Govern- ment, on your assumption of the Chair of the inaugural session of the Human Rights Council. I have every confidence that under your able leadership this session will be successful.

能动司法背景下城区人民法庭参与诉源治理的逻辑与进路——以新时代人民法庭建设的“花乡做法”为中心

新时代人民法庭建设的“花乡做法”表明,诉源治理是当前城区人民法庭参与基层社会治理的重要方式。诉源治理基本上覆盖了纠纷发生前后全过程,纠纷发生前主要以风险预测为主,纠纷解决中则以工作指引、调解指导及裁判说理等方式为主,纠纷解决后则以司法建议为主。人民法庭的诉源治理策略贯彻着“政策—法律”“跨界—守界”双重逻辑,前者是人民法庭的一般逻辑,而后者则是城区人民法庭的特有逻辑。双重逻辑内部存在着结构性张力,城区人民法庭与其他治理主体的关系应从分工转向合作,通过诉源治理增强分工合作的主动性与灵活性,与其他非司法性力量协同解决复杂的城市治理问题。

新农合对农村中老年人幸福感影响的实证研究

2003年我国开始实施新型农村合作医疗保险(简称新农合),是为了解决人民看病难、看病贵的问题,从而减轻农村居民的医疗负担。利用中国家庭追踪调查的数据进行实证分析发现,参加新农合对农村中老年人的生活幸福感有明显的提升作用,并且检验结果稳健。分析影响机制,得出农村中老年人参加新农合后对政府的评价及看病条件满意度显著提高,降低居民医疗自花费的金额。

基于激光雷达的非合作航天器姿态测量

针对目标自遮挡导致姿态解算精度较低的问题,提出了一种基于激光雷达(LiDAR)点云的空间非合作目标姿态估计方法。初始姿态获取阶段,通过RANSAC算法与曲率聚类分割算法对目标特征分割,再与模板特征进行匹配获得粗配准变换矩阵,然后利用迭代最近点(ICP)算法精配准解算初始姿态;姿态跟踪阶段,通过快速点云配准计算相对姿态,通过逐帧点云姿态传递完成目标姿态测量。利用卫星模型搭建实验平台进行姿态测量实验。实验结果表明:所提方法能够稳定完成姿态解算,验证了所提方法的精度与可行性。

高速磁浮背靠背三电平ANPC变流器中点电压偏移机理与协同控制策略

高速磁浮交通牵引变流器采用24 MVA背靠背三电平有源中点钳位拓扑,其中两台整流器和两台逆变器共用直流母线。该文分析整流侧和逆变侧在不同功率因数下中点电压(neutral point voltage,NPV)偏移机理及不同电压矢量对NPV的具体影响。据此,针对高速磁浮逆变器并联和串联两种模式,建立NPV偏移模型,得到在调制比和功率因数同时变化时NPV的可控区域。为在全速范围保证NPV平衡,提出一种基于平移调制波的协同控制策略。为减轻整流器功率因数和调制比对NPV的影响,采用一种具有相电压半波对称性的载波脉宽调制,并证明其具备NPV自平衡能力。仿真和硬件在环实验表明,所提策略具有NPV恢复到平衡状态所需时间短、可控范围大等优点,可在高速磁浮全速工况下保证NPV平衡。

基于TEASER算法的空间非合作目标位姿估计

基于点云的空间非合作目标位姿估计,常受到噪声影响.提出截断最小二乘估计与半定松弛(truncated least squares estimation and semidefinite relaxation,TEASER)与迭代最近点(iterative closest point,ICP)的结合算法,提升空间非合作目标位姿估计精度与鲁棒性.该方法包括粗配准与精配准两个环节:在粗配准环节中,基于局部点云与模型点云的方向直方图特征(signature of histogram of orientation,SHOT)确定匹配对,利用TEASER算法求解初始位姿;在精配准环节中,可结合ICP算法优化位姿估计结果.北斗卫星仿真实验表明:在连续帧位姿估计中,噪声标准差为3倍点云分辨率时,基于TEASER的周期关键帧配准方法的平移误差小于3.33 cm,旋转误差小于2.18°;与传统ICP方法相比,平均平移误差与平均旋转误差均有所降低.这表明所提出的空间非合作目标位姿估计方法具有良好的精度和鲁棒性.

基于Adaptive Sigma-Point滤波的智能导弹对目标协同定位方法研究

在对智能导弹协同作战过程详细描述的基础上,提出了一种利用多枚智能导弹协同对目标定位的方法。考虑目标运动模型为静止模型和运动模型两种情况,将Sigma-Point滤波方法与过程噪声的自适应估计方法相结合,融合目标运动状态和目标到达角信息,克服了常规Sigma-Point滤波性能依赖于目标运动模型的先验统计信息的缺点。通过比较目标可能存在区域面积的大小,确定了参与协同定位的智能导弹数目和编队构型。仿真研究表明,多枚智能导弹协同对目标定位可以显著提高定位精度和速度。

计及配电侧分布式电源的输配协同高收敛性最优潮流研究

在电力系统能源转型的背景下,充分利用配电侧分布式电源(distributed generation,DG)对于减少碳排放具有重要意义。而随着DG的广泛接入,输配电网之间存在双向功率流动,如果输电网和配电网仍然按照传统的等值方法进行最优潮流计算,将无法获得精确结果。因此文中建立输配协同全局最优潮流优化模型,采用节点撕裂的方法解耦输配电网的耦合变量。在此基础上,通过数学推导得到模型的不动点迭代形式,考虑到传统的异构分解(heterogeneous decomposition,HGD)算法只利用最新的计算结果进行迭代计算,结合数学领域的安德森加速思想,利用历史迭代值对不动点迭代进行优化,提出基于安德森加速的HGD算法。经算例测试,该算法能充分利用配电侧DG。与其他算法进行对比,结果显示,该算法准确度高,收敛性能相较于HGD算法有显著提高。

建设基层立法联系点的价值功能、实践困境及提升路径

党的二十大将基层立法联系点作为践行全过程人民民主的重要载体,赋予基层立法联系点新的历史使命和任务。基层立法联系点有助于构建双向互动的立法模式、畅通民意立法表达的渠道,进而有助于推进全面依法治国。当前,各地不断探索建设基层立法联系点具体做法,充分发挥其察民情、聚民智、惠民生的桥梁和纽带作用,虽取得了一定成效,但也面临立法联系点宣传力度有待增加、立法信息员法治素养有待提升、立法联系点工作机制有待健全等问题。更好地发挥基层立法联系点的作用,应着力从完善立法联系点设置、加大立法联系点宣传力度、加强立法信息员队伍建设、完善立法建议反馈机制等四个方面进行优化。

新中国成立初期农村党员教育与农业互助合作运动的推进--以山东为中心的考察

新中国成立初期,为了消除农村党员对社会主义社会和共产主义社会的错误认识,打破“革命成功”的胜利情绪,农村基层党组织进行了一次较为系统的党员教育。通过农村党员教育,中国共产党在农村党的组织初步建立了党课制度,提高农民党员的思想觉悟和理论水平,改变部分党员存在的“个人生产、发家致富”的思想,划清党员干部先锋队与群众的界限,启发他们带头参加农村互助合作组织,并在其中发挥示范作用,有效推进了农业互助合作运动的进程。新中国成立初期,山东作为当时农村党员占比最多的省份,其农村党员教育积累了一定的经验,对当下党员干部教育有积极启示意义。

改进PointNetLK的点云智能配准与位姿图优化方法

针对空间在轨服务任务中的非合作目标相对位姿测量问题,提出一种目标可测部位点云的智能配准方法。首先,通过Straight Through滤波算法对半物理仿真平台采集得到的点云进行目标提取,以消除背景数据等杂乱信息;其次,改进PointNetLK神经网络点云配准算法,将提取后的点云数据作为输入,从而获得初步配准结果,解决非合作目标先验信息缺失导致的无法配准问题;最后,建立基于位姿图的优化模型,以降低配准误差,提高配准精度。实验结果表明,与传统迭代最近点(ICP)算法相比,配准综合误差从6.3598降低到1.7291,精度提高约72.81%;单次耗时从33.16 s降低到4.2 s,效率提升约87.33%,与当前SM-ICP等其他算法相比,也具有一定的优势。

考虑探测效能的空空导弹分布式协同中制导律

本文以多枚空空导弹逆轨拦截高速运动目标为背景,提出了一种以协同探测为终端约束的分布式协同中制导律.通过对误差源和误差传递链路进行分析,建立了中末交班概率计算模型,基于虚拟导引点研究了协同视场拼接方法.在视线法向,针对位置协同和角度协同等约束条件,设计了基于高斯伪谱法的最优制导律.在视线方向,基于二阶多智能体一致性理论,设计了分布式时间协同制导律,构造李雅普诺夫泛函证明了该方法可使系统在有限时间达到稳定,并推导出了一致性时间上界.仿真结果表明该制导律可使多弹以各自期望的视线角同时到达指定交班区域,实现视场拼接、协同探测的需求,有效提高了中末交班概率.

有指向约束的领航跟随航天器编队简化姿态分布协同控制方法

针对无向通信拓扑下领航跟随航天器编队简化姿态协同控制问题,结合人工势场理论、反步控制和滑模控制方法,提出了考虑跟随航天器指向禁止约束的简化姿态分布式协同控制协议。首先,建立航天器之间的简化姿态误差模型以及各跟随航天器的指向禁止约束模型;其次,构造各跟随航天器的人工势场,设计跟随航天器的分布式协同虚拟控制量,使得跟随航天器的瞄准矢量避开约束区域,与领航航天器的瞄准矢量保持一致;然后,将各跟随航天器的角速度矢量与虚拟控制量之差作为滑模变量,构造滑模面并设计各跟随航天器的分布式协同滑模控制律;最后,通过数值仿真,在典型扰动环境下跟随与领航航天器之间的简化姿态平均误差达到10-6量级,并且能够有效避开多个指向禁止区域。对于实际存在的通信拓扑切换、通信时延等问题未来仍需进一步深入研究。

中非抗疫合作对习近平外交思想的诠释与实践

中非抗疫合作是习近平人类命运共同体倡议在卫生健康领域的具体细化和生动实践,为当今国际抗疫合作以及未来应对重大社会公共危机提供了“人民性”的价值遵循和实践指南。中非抗疫合作是具有中国特色、时代特征的一种新型非传统安全合作,为构建新型国际关系做出了典范。中非抗疫合作为中非关系发展提供了新动力,促进了其他国家对非洲的投资,开辟了中非卫生健康共同体建设的路径。