Dynamic Topology Multi Force Particle Swarm Optimization Algorithm and Its Application

Particle swarm optimization （PSO） algorithm is an effective bio-inspired algorithm but it has shortage of premature convergence. Researchers have made some improvements especially in force rules and population topologies. However, the current algorithms only consider a single kind of force rules and lack consideration of comprehensive improvement in both multi force rules and population topologies. In this paper, a dynamic topology multi force particle swarm optimization （DTMFPSO） algorithm is proposed in order to get better search performance. First of all, the principle of the presented multi force particle swarm optimization （MFPSO） algorithm is that different force rules are used in different search stages, which can balance the ability of global and local search. Secondly, a fitness-driven edge-changing （FE） topology based on the probability selection mechanism of roulette method is designed to cut and add edges between the particles, and the DTMFPSO algorithm is proposed by combining the FE topology with the MFPSO algorithm through concurrent evolution of both algorithm and structure in order to further improve the search accuracy. Thirdly, Benchmark functions are employed to evaluate the performance of the DTMFPSO algorithm, and test results show that the proposed algorithm is better than the well-known PSO algorithms, such as gPSO, MPSO, and EPSO algorithms. Finally, the proposed algorithm is applied to optimize the process parameters for ultrasonic vibration cutting on SiC wafer, and the surface quality of the SiC wafer is improved by 12.8% compared with the PSO algorithm in Ref. [25]. This research proposes a DTMFPSO algorithm with multi force rules and dynamic population topologies evolved simultaneously, and it has better search performance.

Dynamic Field Division of Hydrocarbon Migration,Accumulation and Hydrocarbon Enrichment Rules in Sedimentary Basins

Hydrocarbon distribution rules in the deep and shallow parts of sedimentary basins are considerably different, particularly in the following four aspects. First, the critical porosity for hydrocarbon migration is much lower in the deep parts of basins： at a depth of 7000 m, hydrocarbons can accumulate only in rocks with porosity less than 5%. However, in the shallow parts of basins （i.e., depths of around 1000 m）, hydrocarbon can accumulate in rocks only when porosity is over 20%. Second, hydrocarbon reservoirs tend to exhibit negative pressures after hydrocarbon accumulation at depth, with a pressure coefficient less than 0.7. However, hydrocarbon reservoirs at shallow depths tend to exhibit high pressure after hydrocarbon accumulation. Third, deep reservoirs tend to exhibit characteristics of oil （-gas）-water inversion, indicating that the oil （gas） accumulated under the water. However, the oil （gas） tends to accumulate over water in shallow reservoirs. Fourth, continuous unconventional tight hydrocarbon reservoirs are distributed widely in deep reservoirs, where the buoyancy force is not the primary dynamic force and the caprock is not involved during the process of hydrocarbon accumulation. Conversely, the majority of hydrocarbons in shallow regions accumulate in traps with complex structures. The results of this study indicate that two dynamic boundary conditions are primarily responsible for the above phenomena： a lower limit to the buoyancy force and the lower limit of hydrocarbon accumulation overall, corresponding to about 10%-12% porosity and irreducible water saturation of 100%, respectively. These two dynamic boundary conditions were used to divide sedimentary basins into three different dynamic fields of hydrocarbon accumulation： the free fluid dynamic field, limit fluid dynamic field, and restrain fluid dynamic field. The free fluid dynamic field is located between the surface and the lower limit of the buoyancy force, such that hydrocarbons in this field migrate and accumulate under the influence of, for example, the buoyancy force, pressure, hydrodynamic force, and capillary force. The hydrocarbon reservoirs formed are characterized as ＂four high,＂ indicating that they accumulate in high structures, are sealed in high locations, migrate into areas of high porosity, and are stored in reservoirs at high pressure. The basic features of distribution and accumulation in this case include hydrocarbon migration as a result of the buoyancy force and formation of a reservoir by a caprock. The limit fluid dynamic field is located between the lower limit of the buoyancy force and the lower limit of hydrocarbon accumulation overall; the hydrocarbon migrates and accumulates as a result of, for example, the molecular expansion force and the capillary force. The hydrocarbon reservoirs formed are characterized as ＂four low,＂ indicating that hydrocarbons accumulate in low structures, migrate into areas of low porosity, and accumulate in reservoirs with low pressure, and that oil（-gas）-water inversion occurs at low locations. Continuous hydrocarbon accumulation over a large area is a basic feature of this field. The restrain fluid dynamic field is located under the bottom of hydrocarbon accumulation, such that the entire pore space is filled with water. Hydrocarbons migrate as a result of the molecular diffusion force only. This field lacks many of the basic conditions required for formation of hydrocarbon reservoirs： there is no effective porosity, movable fluid, or hydrocarbon accumulation, and potential for hydrocarbon exploration is low. Many conventional hydrocarbon resources have been discovered and exploited in the free fluid dynamic field of shallow reservoirs, where exploration potential was previously considered to be low. Continuous unconventional tight hydrocarbon resources have been discovered in the limit fluid dynamic field of deep reservoirs; the exploration potential of this setting is thought to be tremendous, indicating that future exploration should be focused primarily in this direction.

Restoring-force model of modified RAC columns with silica fume and hybrid fiber

In order to establish a restoring-force model for modified concrete columns with recycled aggregates concrete(RAC), cyclic loading tests were carried out on five concretes with RAC columns and ordinary concrete frame columns under the combined influence with different admixtures and admixtures ratios(silica fume and hybrid fiber). The expressions for characteristic nodes of the skeleton curve were given by the analysis and numerical regression of the test results. In addition, the hysteretic rules of the restoring-force model and the expression for unloading stiffness were presented. Finally, we summed up the complete calculation method of the hysteretic restoring force, whose results were in good agreement with experiment. The results demonstrated that the proposed model could simulate and reflect the corresponding hysteretic behaviors, and the calculation method can provide the theoretical basis for the engineering application.

Prediction of cutting forces in flank milling of parts with non-developable ruled surfaces

Predicting the cutting forces required for five-axis flank milling is a challenging task due to the difficulties involved in determining the Undeformed Chip Thickness(UCT) and CutterWorkpiece Engagement(CWE). To solve these problems, this paper presents a new mechanistic cutting force model based on the geometrical analysis of a flank milling process. In the model,the part feature and corresponding cutting location data are taken as input information. The UCT considering cutter runout is calculated according to the instantaneous feed rate of the element cutting edges. A solid-discrete-based method is used to precisely and efficiently identify the CWE between the end mill and the surface being machined. Then, after calibrating the specific force coef-ficients, the mechanistic milling force can be obtained. During the validation process, two practical operations, three-axis flank milling of a vertical surface and five-axis flank milling of a nondevelopable ruled surface, are conducted. Comparisons between predicted and measured cutting forces demonstrate the reliability of the proposed cutting force model.

高校师德制度建设的现代性规则困境与破困路径

师德制度是高校师德建设的重要内容,在助推教师职业发展、构建教育生活秩序中发挥了重要作用。由于制度工具主义的滥觞和受制度自身逻辑的影响,高校师德制度建设陷入了制度建构困境、取向困境、执行困境、评价困境。根据反思性现代性理论,风险可以被看作现代性制度的内在变量,通过加强对制度的反思性监测,以激进的参与态度对反思性的制度进行再生产,为破解师德制度建设所面临的规则困境提供了视角和方法。具体而言,高校破解师德制度建设的现代性规则困境,需增强制度的反思性意识,从制度结构、价值取向、规则运行、目标达成等方面突破,以实现师德制度建设与师德养成的双向共促。

数字司法的法治边界

随着数字经济的加速发展,现代司法发生了基础上的底层变革,在实践中不断涌现的数字司法创新,演绎出数字司法的时代逻辑,形成了新型的数字司法运行机制,使得司法质效获得了空前提升。然而,数字司法也面临着一些挑战和风险,需要在司法能动与司法谦抑、数据业务与数字正义、数字技术与法治人文上进行恰当的“三重”平衡,从而确立数字法治理念,推进司法制度变革,厘定数字正义原则,构建数字正当程序,实现数字司法的形态转型和迭代升级,进而绘就数字法治的“中国图景”。

论新质生产力基础上的“新质民主”与“新质法治”的辩证统一

从分析“新质生产力”的性质、内涵、特征、构成要素及意义出发,运用马克思主义立场、观点和方法,坚持习近平法治思想为指导,可以明确提出“新质生产力”的出现和发展可能引起“新质生产关系”的形成,继而通过“新质经济基础”推动上层建筑朝着“新质上层建筑”转变的重大法理判断。“新质生产力”所引发的社会变革是客观规律,民主与法治作为上层建筑的重要组成部分,也会随着“新质生产力”的不断发展而日益呈现“新质民主”与“新质法治”的特征。“全过程人民民主”是“新质民主”的重要标志,而数字法治、涉外法治构成了“新质法治”的核心要素。法学界要及早规划、超前研究,对“新质生产力”发展可能引发的包含了民主与法治等要素在内的上层建筑可能发生的深远影响,从法理上进行深入分析并拿出切实可行的应对方案。

论新时代人民法院能动司法的主要特征

能动司法是中国本土司法文化资源的原生性概念,是中国特色的自主司法知识体系的有机构成要素,是中国特色社会主义司法制度本质属性的集中体现,反映了马克思主义法哲学的世界观和方法论。新时代人民法院坚持能动司法,是践行习近平法治思想,着力破解司法难题,维护社会公平正义,积极主动融入国家治理、社会治理,以审判工作现代化支撑和服务中国式现代化的必然要求。新时代新征程,人民法院能动司法的内涵更加丰富、指向更加鲜明,体现了司法的政治性、人民性、法治性、协同性、综合性和有效性的有机统一,彰显了走中国特色社会主义法治道路的自信、底气和定力。坚持新时代能动司法,就是要坚持以习近平法治思想为指引,以让人民群众感受到公平正义为目标,积极主动适应中国式现代化的司法新需求,推动形成服务大局、司法为民、公正司法的生动实践。

以高水平法治促进新质生产力发展

新质生产力以全要素生产率大幅提升为核心标志,特点是创新,关键在质优,本质是先进生产力。数据与算法、算力作为质优的创新型要素,优化其配置成为提高全要素生产率的关键一环。在优化要素配置过程中,数据流通、算法开发与算力协同都离不开法治的支撑,同时,整体营商环境的持续优化也需要法治的保障。从实践出发,良法善治在消除和打通新质生产力发展的堵点痛点方面能发挥积极作用,以促进新型生产关系适配新质生产力发展。为此,需在法治框架下健全数据基础制度,推动数据要素有序开放流通,完善人工智能算法治理体系和算力协同机制,持续优化营商环境,为新质生产力发展提供质优生态。

中国式法治现代化的司法推进

实现中国式法治现代化意味着必须推进公正司法,二者间是目标与方法的关系。中国式法治现代化的司法推进是指司法机关在党的领导下,以公正司法和人民司法为价值坚守,通过司法政策、司法制度、司法理念和司法实践的革新,全面作用于立法、执法与守法,最终“四力合一”形成“四驱动力”推动实现中国式法治现代化。其基本特征是:在领导制度上始终坚持党的领导;在指导思想上始终以中国特色社会主义法治理论为引领;在推进方略上实行司法政策、司法制度、司法实践和司法理念的“四维联动”;在价值目标上始终把人民利益放在首位。在中国式法治现代化进程中,司法推进以期改革成本、实践性能和制度供给上的实践优越性,深度契合中国式现代化本质要求的理论适洽性,彰显了中国的司法智慧,演绎了司法文明的新形态。未来的司法推进应始终将“以党为舵”“以民为本”“公正为魂”及“科技为用”融贯司法活动的全过程全领域,谱写法治文明的新篇章。

生态环境分区管控的基本逻辑、运行样态与法治进路

生态环境分区管控作为中国生态文明建设领域的特色制度创新,不仅是优化国土空间保护利用新格局的战略部署,也是习近平生态文明思想引领下的实践范例。对生态环境分区管控的逻辑论证和运行观察,发现:作为生态环境源头预防的基本性制度,生态环境分区管控根植于空间转向理论,蕴含着深厚的空间治理逻辑;生态环境分区管控以实现空间正义为价值目标,法治化是其制度发展的应然理路;法制供给滞后、法律内容残缺、配套机制缺失是掣肘生态环境分区管控战略实施和制度转型的主要动因。因此,提出要在明确立法策略的基础之上,按照内外在机理构筑生态环境分区管控的法治体系。

论新质生产力的法治保障

新质生产力的蓬勃发展在提升经济效益的同时,也对传统的治理机制提出了挑战。法治作为平衡创新与风险的制度天平,以特殊规则规范和引领创新事业。法治涵摄新质生产力的发展进程,能有效推动共同富裕、鼓励开拓创新、矫正不公平的竞争格局。法治坚守新质生产力发展权这一底层逻辑,实现对企业、研发人员和国家自主创新的正向激励。明确的规则清单、向善的价值理念和社会本位价值立场,为防范化解发展新质生产力可能引发的系统性风险提供了可行方案。

数字经济制度型开放驱动新质生产力加快形成:机制、挑战与路径

新质生产力的加快形成需要制度型开放作为政策保障,而数字经济制度型开放则是其中的关键环节。文章首先梳理了新质生产力的基本特征与数字内涵,明确并介绍了数字经济制度型开放的概念、内容和具体实践。其次,针对数字经济制度型开放的内容,从数字规则对接、数字规制与管理加强、数字标准建立和国际化三个方面分析了其对新质生产力加快形成的推动作用。最后,基于政策引导与激励机制覆盖较低、数据法律基础不全、数据要素市场化配置不足、数据产权与收益分配制度政策供给缺乏、国际合作不畅等挑战,提出数字经济制度型开放驱动新质生产力加快形成的针对性政策建议。

在线民事诉讼的当代法治价值

2021年,新的《中华人民共和国民事诉讼法》颁布,明确规定了在线诉讼模式的法律效力,使诉讼模式灵活多样,既与时代需求和高科技发展的步伐相契合,又符合当代各民事主体对公平正义和效率价值的追求,能够有效协调各民事主体间的不同价值目标的实现。目前,在线诉讼尚存在公信力不足、专业司法人员在线诉讼能力有待提升及监督制度体系有待完善等问题。因此,基于法治建设的要求,在线诉讼的改革发展仍然要始终坚持公平正义和效率的价值方向,在实践中不断自我完善。

钢梁贯通型装配式混凝土框架梁柱节点恢复力模型研究

为研究装配式混凝土干连接节点在地震作用下的动力特性,文章设计制作了6个新型装配式节点,通过改变面承板厚度、钢环箍厚度、面承板宽度和钢梁翼缘厚度进行试验,研究不同变量对节点抗震性能的影响。基于试验结果及加载过程中的试验现象,结合三折线模型对数据进行处理,拟合出计算骨架曲线,并在此基础上,结合滞回规则拟合出计算滞回曲线。将拟合所得计算骨架曲线和计算滞回曲线与试验所得曲线进行对比,吻合度均较好。结果表明:根据三折线模型拟合出的计算骨架曲线可以较好地反映该节点的受力特征;根据滞回规则得到的计算滞回曲线可以有效反映该节点的滞回性能。该恢复力模型可为该类装配式节点的抗震性能分析提供参考。

论新质生产力的经济法促进——以人形机器人创新发展为例

作为通用人工智能技术应用的理想载体,人形机器人技术及产品不仅需要新质生产力为支撑,而且随着相关基础技术集成创新的跃升,其有望成为我国新质生产力发展的重要引擎。从发展新质生产力的视角看,人形机器人产业虽然在我国得到了一定重视,但是仍面临有效市场和有为政府间价值与功能需进一步适配、技术发展和应用中安全风险与漏洞需解决、经济创新发展目标与市场公平竞争秩序待协调等经济问题。为此,聚焦发展新质生产力的经济法治时代内涵,重视经济法推动新质生产力对人形机器人创新发展的促进作用,坚持以创新发展为目标、以安全可控为底线、以公平竞争为支撑、以包容开放为保障,推动负责任人形机器人技术及应用的高质量发展。建议以统筹好高质量发展与高水平安全的动态平衡为前提,构建多元共商共建共享的治理体系,全面准确理解系统观念,以激励创新为导向,以市场公平竞争为支撑,建立和完善容错机制,有效促进人形机器人在包容开放的全球合作生态中创新发展。

新质生产力视域下云计算数据迁移的现实困境与法律应对

云计算不仅是数字经济发展的基础设施,还是促进新质生产力发展的核心推力。欧盟生效的《数据法》对用户的云数据迁移和服务转换权益提供了高水平的法律保障。而我国目前的法律法规对云计算的规定尚不充分,云计算涉及的数据迁移特殊问题更缺乏充分、系统的法律规范。云服务商制定的数据迁移服务规则和协议对用户权利有决定性的影响。除了政府部门的政务云服务合同,云服务商通常利用其优势地位设定显失公平的格式条款,致使用户数据迁移权受限、迁移数据安全难以保障、数据被动迁移、难以寻求法律救济。为规避上述云数据迁移法律风险,制定一般用户数据迁移服务规则时应明确数据迁移权的原则和范围,确立云服务商的安全保障法定义务,完善服务规则与协议关于用户数据迁移的约定,并在政务云数据迁移合同中加大对系统兼容性的法律关照与权益保护,以促进各大云服务商之间的良性竞争,保障一般用户的数据迁移权益。

农村生态环境治理中村规民约的功能偏差与调适路径

农村生态环境治理不仅是生态文明建设的根本要求,也是乡村振兴战略的关键任务。村规民约作为非正式规范,蕴含民主自治、活法与软法等内容,在农村生态环境治理中发挥重要作用。其作为农村生态环境治理的重要手段和环境纠纷处理的重要依据,是传统文化与当代价值观念的显象载体。通过对F省X县93份村规民约调查分析发现,村规民约存在制定过程异化、文本形式同质化、环境规范支撑不足导致约束力弱化等问题。结合农村生态环境治理中村规民约的机理分析,村规民约的功能纠偏需加强自治、强化约束力。应结合“三治融合”实行规则优化,自治层面完善村规民约制定程序,法治层面软法与硬法有机结合,德治层面融合当地传统文化与当代价值观念;并通过内部优化村规民约环境规范内容,外部建立相关配套措施,健全村规民约实施体系。

以习近平法治思想引领新时代的政法工作

政法工作关系国家安全和社会稳定,是党和国家事业的重要组成部分,要以政法工作现代化支撑和服务中国式现代化。以习近平法治思想引领新时代的政法工作应当坚持党对政法工作的绝对领导,坚持以人民为中心,以忠诚履行五大任务为职责使命,以深入推进四大建设为基本的工作格局,以解决突出问题和深化政法改革为推动力量,妥善处理若干重大关系以校正政法工作方向。

永磁吸附爬壁机器人磁力影响因素分析

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