Theoretical and Engineering Approach to Human Power Ornithopter Design

The article considers the issues on preliminary calculation of human-powered ornithopter general performances. The model of “simple ornithopter” is introduced. Giving an example of simple ornithopter interaction with the environment, the formula of relation of ornithopter theoretically available propulsion to kinematic and physical parameters of its horizontal flight parameters is derived. The tasking is performed for the following stages of calculation and design of the human-powered ornithopter.

Tackling global electricity shortage through human power： Technical opportunities from direct or indirect utilizations of the pervasive and green human energy

With the energy and environmental problems becoming increasingly serious, human power, as a pervasive, renewable, mobile and environment friendly energy, draws more and more attention over the world. In this paper, the most basic features of human power are presented. The currently available human power harvesting theories and devices are briefly reviewed and compared. Further, direct or indirect utilization of human power in daily life, especially transportation and home appliances, such as human-powered car, watercraft, air- craft, washing machine and television etc. are summarized. Considering that the total energy from an individual is rather limited, as previously focused by most of the former works, it is conceived in this paper that an important future for large scale use of human powers lies in the efficient conversion, collection and storage of such energy from discrete people and then use it later on as desired. With the huge amount of energy gathered, the application category of human power would be significantly expended. Starting from this point, three technical ways towards efficiently utilizing human power are sketched, which are termed as human-powered grid （HPG）, human-powered charger （HPC） and human-powered storage （HPS）, among which, HPG is capable of collecting the electric power produced by each individual at different regions and thus can supply unique and flexible power to the customers covered in the area, without relying on the conventional electricity grid. The HPC can then charge various kinds of electrical devices instantly by a human driven generator which converts human power into electricity. Finally, the HPS can store electricity in time for later use. In this way, even for the devices requiring electricity that is strong enough, the collected human power can also serve as its reliable energy source. Meanwhile, utilization of human power becomes rather convenient and timely which guarantees its practical value. It is expected that with further research and increasing applications, human power could partially relieve the current global electricity shortage and environmental issues via its pervasive contribution.

Low-power laser irradiation promotes the proliferation and osteogenic differentiation of human periodontal ligament cells via cyclic adenosine monophosphate

Retaining or improving periodontal ligament （PDL） function is crucial for restoring periodontal defects. The aim of this study was to evaluate the physiological effects of low-power laser irradiation （LPLI） on the proliferation and osteogenic differentiation of human PDL （hPDL） cells. Cultured hPDL cel Is were irradiated （660 nm） daily with doses of O, 1, 2 or 4 J .cm-2. Cell proliferation was evaluated by the 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide （MTT） assay, and the effect of LPLI on osteogenic differentiation was assessed by Alizarin Red S staining and alkaline phosphatase （ALP） activity. Additionally, osteogenic marker gene expression was confirmed by real-time reverse transcription-polymerase chain reaction （RT-PCR）. Our data showed that LPLI at a dose of 2 J.cm-2 significantly promoted hPDL cell proliferation at days 3 and 5. In addition, LPLI at energy doses of 2 and 4 J.cm-2 showed potential osteogenic capacity, as it stimulated ALP activity, calcium deposition, and osteogenic gene expression. We also showed that cyclic adenosine monophosphate （cAMP） is a critical regulator of the LPLI-mediated effects on hPDL cells. This study shows that LPLI can promote the proliferation and osteogenic differentiation of hPDL cells. These results suggest the potential use of LPLI in clinical applications for periodontal tissue regeneration.

Establish an International Communication Platform for Human Rights and Promote China's Discourse Power on Human Rights——A Review on Ten Years of Beijing Forum on Human Rights

The beijing forum on Human Rights is a global human rights forum founded by the china Society for Human Rights Studies in 2008? it has been successfully held for nine times? in the past 10 years, the forum has kept up with the trend of the times and carefully set up issues; seeking common ground while reserving differences,seeking the greatest consensus on human rights; being open and inclusive, and building a model of international human rights exchange and cooperation? The forum has become a high-level academic platform for human rights exchanges and cooperation on the basis of equality,harmony, tolerance, openness and mutual respect, and has played an important role in promoting the healthy development of the international human rights cause? With the socialism with chinese characteristics entering a new era, the beijing forum on Human Rights needs to position new roles in the new era, seek more clear development momentum and direction, and promote the vitality, cohesiveness and international influence of the forum in a deep and all-round way and contribute to the development of world human rights cause and global human rights governance?

Mass Stopping Power and Range of Protons in Biological Human Body Tissues (Ovary, Lung and Breast)

In this work, the mass stopping power and range of protons in biological human body tissues (ovary, lung and breast) were calculated at the energy ranging from 0.04 MeV to 200 MeV using the MATLAB Program. The data relating to the densities, average atomic number to mass number and excitation energy for the present tissues were collected from ICRU Report 46. The mass stopping power was calculated by the Bethe formula. Moreover, the simple integration (continuous slowing down approximation) method was employed for calculating protons range at the tissues. The results of the mass stopping power versus energy and the range versus energy were presented graphically and the empirical formulae for calculating the mass stopping power and the ranges were obtained. The present results for mass stopping powers and ranges were compared with the results obtained by others. Good agreements were found between them, especially at the energy ranging from 3 to 200 MeV.

Calculation of Mass Stopping Power and Range of Protons as Well as Important Radiation Quantities in Some Biological Human Bodyparts (Water, Muscle, Skeletal and Bone, Cortical)

In this work, the electronic mass stopping power and the range of protons in some biological human body parts (Water, Muscle, Skeletal and Bone, Cortical) were calculated in the energy range of protons 0.04 to 200 MeV using the theory of Bethe-Bloch formula as giving in the references. All these calculations were done using Matlab program. The data related to the densities, average atomic number to mass number and excitation energies for the present tissues and substances were collected from ICRU Report 44 (1989). The present results for electronic mass stopping powers and ranges were compared with the data of PSTAR and good agreements were found between them, especially at energies between 1 - 200 MeV for stopping power and 4 - 200 MeV for the range. Also in this study, several important quantities in the field of radiation, such as thickness, linear energy transfer (LET), absorbed dose, equivalent dose, and effective dose of the protons in the given biological human body parts were calculated at protons energy 0.04 - 200 MeV.

Spiral Steel Wire Based Fiber-Shaped Stretchable and Tailorable Triboelectric Nanogenerator for Wearable Power Source and Active Gesture Sensor

Continuous deforming always leads to the performance degradation of a flexible triboelectric nanogenerator due to the Young’s modulus mismatch of different functional layers.In this work,we fabricated a fiber-shaped stretchable and tailorable triboelectric nanogenerator(FST-TENG)based on the geometric construction of a steel wire as electrode and ingenious selection of silicone rubber as triboelectric layer.Owing to the great robustness and continuous conductivity,the FST-TENGs demonstrate high stability,stretchability,and even tailorability.For a single device with ~6 cm in length and ~3 mm in diameter,the open-circuit voltage of ~59.7 V,transferred charge of ~23.7 nC,short-circuit current of ~2.67 μA and average power of ~2.13 μW can be obtained at 2.5 Hz.By knitting several FST-TENGs to be a fabric or a bracelet,it enables to harvest human motion energy and then to drive a wearable electronic device.Finally,it can also be woven on dorsum of glove to monitor the movements of gesture,which can recognize every single finger,different bending angle,and numbers of bent finger by analyzing voltage signals.

A Novel Design Framework for Smart Operating Robot in Power System

This paper proposes the concept and framework of smart operating system based on the artificial intelligence(AI)techniques. The demands and the potential applications of AI technologies in power system control centers is discussed in the beginning of the paper. The discussion is based on the results of a field study in the Tianjin Power System Control Center in China. According to the study, one problem in power systems is that the power system analysis system in the control center is not fast and powerful enough to help the operators in time to deal with the incidents in the power system. Another issue in current power system control center is that the operation tickets are compiled manually by the operators, so that it is less efficient and human errors cannot be avoided. Based on these problems, a framework of the smart operating robot is proposed in this paper, which includes an intelligent power system analysis system and a smart operation ticket compiling system to solve the two problems in power system control centers. The proposed framework is mainly based on the AI techniques, especially the neural network with deep learning, since it is faster and more capable of dealing with the highly nonlinear and complex power system.

Operation Indices for Smart Power Dispatch Center Design

With the development of power systems, power grid within a control area becomes much more complicated due to increasing number of nodes and renewable energy interconnections. The role of power system control center is more critical in maintaining system reliable and security operations. Latest developed information and communication technologies provide a platform to enhance the functions and performance of power system control center. Smart power dispatch concept will be the trend of future control center development. In this paper, we start from the human factors of control center design and propose operation indices to reduce the information presented to the system operator. The operation indices will be the important criteria in situation awareness of a power grid. Past, present, future and capability states of a power grid are also proposed to provide better visions to the operator of system conditions. The basic ideas of operation indices and operation states are discussed in the paper. In the end, the design factors for a power dispatch cockpit are discussed.

国有企业职业经理人制度改革研究

我国的改革是对社会主义制度的自我完善,其中,国有企业改革需要将加强党的领导与市场化发展统一起来。因此,国有企业职业经理人制度改革,必须坚持中国特色社会主义市场化改革的方向,采取分类分层改革的方式,以市场化选聘、契约化管理、差异化薪酬、市场化退出为重点环节,因企制宜、循序渐进地推进。改革开放以来,我国国有企业职业经理人制度改革经历了改革准备、初步酝酿、试水调整、推广深化四个阶段,探索形成了四化管理、自愿转身、灵活市场化、部分市场化等典型模式,取得了显著成效,但还存在市场化选聘未能达到预期效果、契约化管理存在难点、差异化薪酬设计不合理、市场化退出机制不完善、监管及配套机制不健全等问题。应坚持党管干部、党管人才的原则,重塑企业文化,增强市场观念,充分发挥市场机制作用,弘扬企业家精神,完善治理体系,逐步建设具有中国特色的现代职业经理人制度体系。

The Three-dimensional Model of “ConstructionTranslation-Communication” for the Construction of a Human Rights Discourse System with Chinese Characteristics in the Post-pandemic Era

Human rights have always been the focus of disputes between China and the West. To make a better China story about human rights and enhance China’s international discourse power in the field of human rights, we propose the text construction, translation and communication path of the construction of the human rights discourse system with Chinese characteristics from the cross-disciplinary perspective. Based on the examples of prevention and control of the CoVID-19 pandemic under the concept of putting people first, mainstream diplomatic linguistic data relevant to the fight against the novel coronavirus was collected through the internet. The human rights discourse with Chinese characteristics is constructed through a variety of texts focusing on putting the people first, the right to life, the right to health, the right to information, the right to privacy, the right to work and a sense of a community with a shared future for human beings. The core concepts of human rights have experienced the deepening process of decontextualization, abstraction and theorization to gradually conform to the expression habits of international audiences. The international communication effect is mainly positive in civil society. It shows that the construction of China’s human rights discourse system and the governance of international human rights discourse have achieved preliminary results. To enhance China’s discourse power on human rights, we need to add an interdisciplinary approach.

美国教育发展战略的时代特征与基本逻辑:从美苏冷战到中美竞争

教育安全国家将教育战略规划纳入国家经济和军事战略规划,通过提升人力资本和塑造意识形态两条路径,将科学、数学和意识形态的教学置于学校课程中心。美国作为典型的“教育安全国家”,在不同的大国竞争时期,其教育发展战略具有不同的时代特征,在美苏冷战时期,注重通过教育助力其与苏联展开意识形态和军事领域的竞争;在中美竞争时期,侧重于帮助其保持全球霸主地位和遏制中国发展,其内容与手段也有所变化,且更为重视人力资本的提升。但美国的教育发展战略也体现出了基本逻辑,即通过STEM教育、关键外语教育等战略提升人力资本,通过公民教育与美国历史教育、国际教育战略等手段塑造意识形态,以实现其赋能国家竞争力提升和维护国家安全的目的。

超越边界:《奥菲奥》的后人类书写

后人类主义的提出标志着人类思维方式的质变,科学技术的发展使得人与非人类的边界变得模糊和消除。理查德·鲍尔斯的小说《奥菲奥》彰显了超越生命、跨越边界、万物相连的后人类理念。从后人类主义的视角探究了小说呈现给读者的人与动物等非人类之间的多重关系,旨在引发人们关注跨物种平等共存、和谐相依的后人类愿景。

THE DIELECTRIC PROPERTIES OF HUMAN FETAL ORGAN TISSUES AT RADIO AND MICROWAVE FREQUENCISE

ＴＨＥＤＩＥＬＥＣＴＲＩＣＰＲＯＰＥＲＴＩＥＳＯＦＨＵＭＡＮＦＥＴＡＬＯＲＧＡＮＴＩＳＳＵＥＳＡＴＲＡＤＩＯＡＮＤＭＩＣＲＯＷＡＶＥＦＲＥＱＵＥＮＣＩＳＥＴＨＥＤＩＥＬＥＣＴＲＩＣＰＲＯＰＥＲＴＩＥＳＯＦＨＵＭＡＮＦＥＴＡＬＯＲＧＡＮＴＩＳＳＵＥＳＡ...

“法治思想家”郭道晖教授的法理求索

郭道晖是我国著名的法学家和法治思想家,在法治、宪制、人权等领域卓有建树,做出开创性贡献,被尊称为“法治三老”之一。在法治论方面,他深入探究法的本质内涵,明确法与法律的区别,将法的时代精神归结为人权与自由,率先且形象地指出“法制”与“法治”区别,积极推动“法治”入宪。他较早地提出中国法治社会的理想前景与现实基础,率先提出市场经济是法治经济这一论断。他有着极强的立法实践问题意识,率先开展立法理论研究,较早地提出法律民主化的要求和原则。在宪制论方面,他论述了宪制的理念和精神,倡导社会主义宪制之路,提出立宪之后贵在行宪。他较早系统地研究权利和权力的关系,首倡权利推定理论,原创性地阐述了社会权力这一新范畴,倡导以社会权力制约国家权力。在人权论方面,他系统论证了人权的重要价值和基本内涵,重视政治人权的独特价值,详细论述了人权的国家保障义务及具体机制,是推动“人权入宪”的法学家之一。郭道晖精湛深刻的学术思想、忧国忧民的人文关怀、大胆创新的理论勇气、正道直行的学术风骨成为当代法学学人的精神标杆。

探索中国体育强国建设的理论起点——立足马克思主义哲学关于对人的本质认识方向

构建中国体育强国建设理论体系的首要问题是找出合理的理论起点。要完成这个任务,必须坚持马克思主义哲学关于对人的本质认识方向,通过借鉴资本主义商业体育的理论起点,到分析社会主义体育探索“人的全面发展”的理论起点,最后以马克思主义中国化最新理论成果,即习近平总书记关于体育的重要论述为指引。一方面,资本主义体育发展建设以资本主义的“剩余价值”为理论阐释点,它同样蕴含着“人的发展”的各种规定,由此引发了在一定制度下面向“人的发展”的体育发展成果的探析;另一方面,习近平总书记关于体育的重要论述则确定了“人的价值”的理论主线。借鉴马克思主义体育思想,重视与教育匹配的社会关系,准确把握习近平总书记关于实现体育的“人的价值”的初心维度的重要论述,可以得到结论,“遵循社会发展与人的发展的统一性”是中国体育强国建设的理论起点。

自动驾驶环境下交通-配电网协同优化运行

为深入分析耦合电力-交通网在混行条件下产生的协同优化效果,提出自动驾驶环境下交通-配电网协同优化策略。建立智慧交通-配电系统协同运行框架,并分析自动驾驶与人工驾驶汽车的行驶特性,构建基于变分不等式的交通网动态混合均衡模型;结合基于二阶锥规划的配电网动态最优潮流模型,设计两阶段迭代求解算法实现耦合网络协同运行仿真。通过与现有单一车型场景及非协调运行情况对比分析,探究在需求高峰时段混行环境下的优化运行效果,最终结果证明了所提协同优化策略的优越性,使得网络综合运行成本相较现有场景有了显著降低,实现了自动驾驶汽车渗入这一新场景下的耦合网络优化运行。

工业智能化如何影响劳动者工资议价能力?

本文将工业智能化与劳动者工资议价能力纳入统一分析框架,通过中国制造业A股上市企业数据构建工业智能化和劳动者工资议价能力指标,从理论与实证层面考察工业智能化对劳动者工资议价能力的影响及作用机制。研究发现,工业智能化显著提升了劳动者的工资议价能力,经过Heckman两步法、替换工具变量等检验后,结论依然稳健。机制分析表明,工业智能化通过外部高技能劳动力需求扩张效应和内部人力资本提升效应提升了劳动者工资议价能力。异质性分析发现,工业智能化对劳动者工资议价能力的提升作用对于国有企业、低融资约束企业、小规模企业、无员工福利的企业、低生活成本地区的企业更加显著。本文研究对于政府如何通过工业智能化转型提升劳动者工资议价能力、提高劳动报酬比重和完善收入分配格局具有重要政策启示。

生成式人工智能的人权风险及其法律治理

人工智能技术的自我赋权与其受制约程度较弱的特性,催生了强大的数字权力,存在滑向“智能利维坦”的风险。若不将人工智能技术的开发和应用纳入法治轨道,将会造成数字技术的异化,导致数字权力的扩张,妨害平等、自由等基本人权。生成式人工智能的出现,颠覆了传统人工智能的发展方向和底层逻辑,标志着人工智能从专注于特定任务向通用人工智能的跃迁。但这种转变加剧了人工智能风险的不确定性,给以往依赖的事前治理和分散治理模式带来了前所未有的挑战。从人权视角出发,结合生成式人工智能技术的发展现状,对人工智能治理进行整体性制度设计显得尤为迫切和关键。应通过强化伦理规约、立法规范发展、实行敏捷治理等措施,推动人工智能治理细节的深化。更进一步,从长远目标来看,构建一套契合中国国情的数字人权理论框架和制度体系,是防止数字权力不当扩张的必由之路。

基于SEM-AHP方法的核电厂定量人为因素评价研究

文章基于人为因素分析与分类系统,分析了115起核电厂执照运行事件报告(Licensed Operation Event Report,LOER),并对影响核电厂事件发生的人为因素进行分类,采用结构方程模型方法得出各影响因素的路径系数,两两比较得到层次分析模型的判断矩阵,进而确定各因素的权重。同时对核电厂人为因素的重要性做排序分析,找到核电厂运行过程中的安全管理薄弱环节,从而促进核电厂系统平稳运行。