Smart community microgrids are capable of efficiently addressing the energy and environmental challenges faced by cities. However, inherent instability renewable sources diverse nature user demands pose to safe operation power systems. In this article, we first introduce a comprehensive system architecture, an operational framework based on Energy Internet Things (EIoT), which considers system‐level safety, reliability, cost‐effectiveness, thereby enhancing system’s coordination performance....

In complex discrete manufacturing environment, there used to be a poor network and an isolated information island in production line, which led slow feedback low utilization ratio, hindering the construction of enterprise intelligence. To solve these problems, uncertain factors process demands sensor were analyzed; hierarchical topology design method deployment strategy complexity industrial internet things proposed; big data analysis model system security protection based on established....

Sortition is one fairness-preserving decision-making method, whereby each of the involved legitimate users can obtain a completely random but mutually different message. Here, using fantastic high-dimension multi-particle singlet states as lot pool, we propose first authenticated quantum sortition protocol in theory with some desirable properties privacy, fairness, and uniqueness, which shows particular function glamour over to classical sortitions. The proposed also expand solve related...

Intelligent manufacturing is the future development direction of industry. There are still some problems lurk in traditional mode production, such as “information island” and “network security”, which result low productivity but high-cost information leakage. With application new generation technology field expanded, deep integration industry promotes production towards intellectualization, networking, service. Single gradually replaced by way large-scale collaborative so industrial internet...

Fast nondominated sorting genetic algorithm II (NSGA-II) is a classical method for multiobjective optimization problems and has exhibited outstanding performance in many practical engineering problems. However, the tournament selection strategy used reproduction NSGA-II may generate large amount of repetitive individuals, resulting decrease population diversity. To alleviate this issue, Lévy distribution, which famous excellent search ability cuckoo algorithm, incorporated into NSGA-II....

The application of conventional AC collection for the integration large-scale renewable energy sources may lead to issues concerning harmonic resonance and reactive power transmission. Conversely, utilization an all-DC generation system wind (WDCG) can effectively circumvent such issues. In contrast system, interdependence among subsystems in WDCG renders it susceptible oscillation instability presence minor disturbances. To address this concern, paper first establishes a small-signal model...

Bearings are widely used in aerospace and other fields, its performance directly affects the production efficiency safety. Nowadays, virtual simulation technology has become an indispensable part of intelligent manufacturing field. As a technology, FEA been bearing design. China needs to import many bearings every year area, Chinese national defense high precision is limited because blockade advanced technology. We can use dynamics modeling achieve predictive design, strive foreign level. In...

To better understand the influence mechanism of boron, nitrogen and silicon dopants on growth chemical vapor deposition (CVD) diamond film, density functional calculations have been performed to reveal different impact impurities CH3 adsorption surface. The substituted doping radical (111) (100) − 2 × 1 surface are both considered. calculation results indicate that radicals hardly adsorbed atoms thus may cause vacancy in lattice easily. Boron will disfavor due lacking valence electron....

Task-oriented grasping (TOG) is crucial for robots to accomplish manipulation tasks, requiring the determination of TOG positions and directions. Existing methods either rely on costly manual annotations or only extract coarse regions from human demonstrations, limiting their practicality in real-world applications. To address these limitations, we introduce RTAGrasp, a Retrieval, Transfer, Alignment framework inspired by strategies. Specifically, our approach first effortlessly constructs...

Human-robot interaction (HRI) encompasses a wide range of collaborative tasks, with handover being one the most fundamental. As robots become more integrated into human environments, potential for service to assist in handing objects humans is increasingly promising. In robot-to-human (R2H) handover, selecting optimal grasp crucial success, as it requires avoiding interference preferred region and minimizing intrusion their workspace. Existing methods either inadequately consider geometric...

The latest development of mannich base corrosion inhibitors in recent ten years was reviewed, including high efficiency Mannich inhibitor, low toxicity inhibitor and new inhibitor. inhibition rate mechanism different were compared, the advantages disadvantages summarized.The process various is mainly discussed.In order to meet needs acidizing construction petroleum industry, synergistic effect modified are deeply considered. It one future directions that have efficiency, environmental...

In order to study the dynamic characteristics of RV reducer, a translational-torsional coupled model reducer is simplified and established with reference modeling method 2K-H planetary gear, Runge-Kutta used solve nonlinear time-varying equations system, translational micro-displacements meshing different components are obtained. The sensitivity analysis planet carrier factors such as stiffness, error, clearance external excitation studied by finite difference method. It found that...

With the new operational styles such as mosaic warfare and multi-domain of US military moving from concept to application, winning elements modes future maritime operations have been profoundly changed. Firstly, capabilities break through anti-access/area denial are analyzed, then characteristics effects implementation under in breaking extracted capabilities, styles, practical applications. On this basis, countermeasure suggestions proposed deal with concept. The significance building...

Abstract With the increasing use of renewable energy in context global climate change, microgrids are expected to be a promising form accessing and distributing sources. However, existing design methods for microgrid systems usually consider system planning operation as separate problems, which cannot guarantee safety, reliability cost economy from holistic view. To fill this gap, we propose parameter approach community based on bi-level optimization model. This can generate optimal...

The onshore full DC wind power generation system can effectively address the challenges of resonance and reactive transmission in large-scale AC convergence. However, transmitted through High-voltage direct current still carries risk high-voltage tripped from grid. To handle this problem, expression transient voltage at grid connection point after blocking is established. And output variation characteristics Grid connected inverter (GCI) are analyzed, bus overvoltage mechanism clarified....

Monocular vision technology can be applied to calculate the tilt angle of insulator.Camera extrinsic parameters describe translation and rotation also called pose between world coordinate system camera system.Thus, determining is a very important part process.We set artificial identification determine positional relationship parameters.There are four landmarks orientation camera, which P4P problem.The method feasible within range allowable error.

Galloping is a process gradually formed.Initially, the line has small-amplitude vibration around equilibrium position.With impact of wind energy negative air damping, amplitude in horizontal direction reduced and vertical slowly increased.Thereby path becomes larger elliptical trajectory, ultimately it stable due to damping.That is, by using an acceleration sensor, respectively, we can measure galloping on directions, which be combined with boundary conditions determine displacement...

基于相关调研，对当前'轮转冰'速滑队伍发展的现实问题进行审视，发现：'轮转冰'速滑队伍目前虽取得较优异的成绩，但仍存在队伍管理工作不完善，运动员、教练员团队结构不合理，训练保障工作滞后等问题。提出：'轮转冰'速滑队伍应把握当前历史机遇，通过理清训练模式、健全管理机构、组建复合型教练员团队、加强后备人才梯队建设、构建可持续发展评价体系等途径，走出现实困境。

Under the background of new power system, flexibility transformation coal-fired plants and lowcarbon have brought about problems such as decline unit economy, drastic change load, difficulty in applying for characteristic test conditions. This paper proposes a method sliding pressure curve optimization based on data mining. The specific steps are follows: first, collect historical delete processing. Then, fuzzy clustering algorithm is used to preliminarily divide with ambient temperature...