Exploring the Drive Motor of Electric Vehicles: Structure, Temperature Rises, and Operational Control of Permanent Magnet Motors by Zhongxian Chen, Jiayin Liu

“…Additionally, it is imperative to identify an optimal trade-off among various performance parameters in these motors. …”
Get full text

Comparative study on PID for DC motor speed regulation by Han Xiangda

“…In this paper, the key role of PID parameter optimization in improving the response speed and accuracy of the system is analyzed and pointed out. …”
Get full text

Energy Efficient Radio Resource Allocation in Two-Tier Macro-Femto Cellular for Mobile Cloud Computing by Guogang Zhao, Liqiang Zhao, Kun Yang

“…However, the cross-tier and co-tier interference have to be carefully controlled with the aid of specific radio resource allocation and optimization techniques. …”
Get full text

Asuhan Keperawatan pada Anak dengan Gangguan Nutrisi Akibat Kanker melalui Pendekatan Model Adaptasi Roy by Muhsinin, Deswita

“…Other activities to achieve optimal nursing care include family education regarding the care and treatment of cancer. …”
Get full text

Pattern synthesis method for arbitrary arrays with desired mainloble response by Dian-fei PAN, Nai-ping CHENG

“…A pattern synthesis method based on adaptive array theory and convex optimization principle was proposed for arbitrary arrays,especially considering the influence of different orientation on array pattern.Firstly,the array pattern with special sideloble shape is obtained by adaptive array theory method; and then,the mainloble pointing to 0° is taken as reference to determine the pattern mainloble with variant steering angle.Finally,the optimal array pattern synthesis with desired mainloble response is converted to a second-order cone programming problem.The resulting optimization problem is nonconvex and is implemented via iterative algorithms of convex optimization,which can be solved using the second-order cone programming method at each iteration.Taking the method developed can obtain satisfied mainlobe response and less synthesized error in sideloble region.Theoretical analyses and simulation results show that the synthe-sized pattern has the same mainloble performance as the desired mainlabole in different orientation,and also the sideloble can maintain the shape to suppress the dynamic interference.…”
Get full text

Fault Extraction of Wind Turbine Rolling Bearings Using FDEO and the Improved ACYCBD by Gong Yongli, Peng Dikang, Feng Tao, Liu Yibing

“…Firstly, high speed shaft means the frequency provided by the SCADA system is used to find the optimal vibration component for further analysis. …”
Get full text

Spectrum sharing scheme in cognitive radio networks based on primary limited feedback by Huan-qin1 GAO, Rong-fang SONG

“…Under the primary rate loss constraint, the optimal transmit power and transmission rate for the secondary was obtained to maximize the secondary user throughput. …”
Get full text

Caching strategy based on transmission delay for D2D cooperative edge caching system by Yan CAI, Fan WU, Hongbo ZHU

“…To meet the requirements of 5G system with low delay and high reliability, for a single-caching D2D cooperative edge caching system, an optimization of the caching strategy based on transmission delay was proposed.The dynamic distributions of requesting users and idle users were modeled as the independent homogeneous poisson point process (HPPP) utilizing the stochastic geometry theory.Comprehensively considering the content popularity, user location information, device transmission power and interference, the relationship between the average transmission delay of user and the cache probability distribution was derived.Taking the average transmission delay as the objective function, the optimization problem was established, and a low complexity iterative algorithm was proposed to obtain the cache strategy with sub-optimal average transmission delay.Simulation results demonstrate that the proposed optimization cache strategy is superior to several common cache strategies in terms of transmission delay.…”
Get full text

Hybrid precoding with sub-connected architecture for millimeter wave massive MIMO system by Haiyan CAO, Xiaohui YANG, Wenjuan HU, Zichang MA, Fangmin XU, Xin FANG

“…A hybrid precoding scheme in the millimeter wave massive MIMO system was proposed with sub-connected architecture at the transmitter and digital combining at the receiver.In this scheme,the digital precoder and combiner were designed based on the singular value decomposition (SVD) of the equivalent channel matrix,while the optimal analog precoder was obtained by blocking the equivalent channel to maximize spectral efficiency according to the block diagonalization.Considering the hardware cost and power consumption,the precoding scheme with sub-connected architecture at the receiver was further proposed.Otherwise,the analog precoder and combiner were iteratively updated.Simulation results show that the proposed scheme which focuses on the digital combining at the receiver has better performance than successive interference cancelation (SIC)-based hybrid precoding.In addition,though the proposed scheme which focuses on the hybrid combining with sub-connected architecture at the receiver has worse performance than SIC-based hybrid precoding,the power consumption and hardware cost are greatly reduced.…”
Get full text

Development and Implementation of High-Gain, and High-Isolation Multi-Input Multi-Output Antenna for 5G mmWave Communications by Mahmoud Shaban

“…Enhanced antenna performance is achieved through the optimal spacing of antenna elements and a decoupling methodology comprising a well-designed metamaterial unit cell, leading to reduced interference between antenna arrays. …”
Get full text

丙烷预冷混合制冷剂液化工艺控制方式优选 by Pan Hongyu, Li Shunli, Li Yuxing, Zhu Jianlu

“…Propane pre-cooling and mixed-refrigerant process, an efficient and simple process and a combination of cascading liquefaction and mixed-refrigerant liquefaction processes, is the most common natural gas liquefaction process by now. Due to the interference of external factors in the actual situation, it is necessary to maintain the stability of liquefaction plant by the controller. …”
Get full text

Numerical Simulations of Single-Step Holographic Interferometry for Split-Ring Metamaterial Fabrication by Zhiming Qi, Wenyao Liang

“…Starting from the principle of multi-beam interference, we have theoretically devised a beam configuration consisting of six symmetrically distributed coherent beams to generate two-dimensional microstructures with diverse shapes of unitcells under different polarization combinations. …”
Get full text

Aerodynamic Analysis of a Hexacopter with an Inner Tilted-Rotor Configuration During Hovering by Yao Lei, Chunfeng Luan

“…The present work is aimed at investigating the arrangement design of an inner tilted-rotor hexacopter to optimize aerodynamic performance with different rotor spacing ratios (<i>s</i>/<i>D</i>) and dihedral angles (<i>β</i>). …”
Get full text

Dynamic Peak Threshold Estimation Method for Noise Mitigation in Hybrid PLC/VLC Systems by Irvine Mapfumo, Thokozani Shongwe

“…Moreover, the results showed a clear correlation between the optimal blanking threshold and the peak-to-average power value of the ACO-OFDM symbol which we leveraged to ascertain the optimal blanking threshold.…”
Get full text

Precision Electrochemical Micro-Machining of Molybdenum in Neutral Salt Solution Based on Electrochemical Analysis by Yuqi Wu, Guoqian Wang, Moucun Yang, Yan Zhang

“…Subsequently, a mask electrochemical machining technique was employed to fabricate arrayed microstructures on the molybdenum surface. To minimize interference between factors, an orthogonal experiment was used to optimize the parameter combination, determining the optimal machining process parameters. …”
Get full text

Coordinated Control of Relative Orbit of Co-Location Geostationary Satellites Using Game Theory by Fatemeh Amozegay, Amirreza Kosari, Mahdi Fakoor

“…Also, based on the case studies conducted by the authors, it is possible to optimally locate and control 20 satellites in a collective orbital slot without any interference.…”
Get full text

Two-Stage Unsupervised Hyperspectral Band Selection Based on Deep Reinforcement Learning by Yi Guo, Qianqian Wang, Bingliang Hu, Xueming Qian, Haibo Ye

“…First, we performed noise estimation preprocessing to filter out bands with high noise levels to reduce the interference in the agent’s learning process. Then, the band selection problem was formulated as a Markov Decision Process (MDP), where the agent learned an optimal band selection strategy through interactions with the environment. …”
Get full text

Multiantenna Relay Beamforming Design for QoS Discrimination in Two-Way Relay Networks by Ke Xiong, Yu Zhang, Dandan Li, Chih-Yung Chang, Zhangdui Zhong

“…To this end, we propose a physical layer method, where the relay beamforming is jointly designed with artificial noise (AN) which is used to interfere in the unauthorized user’s reception. We formulate the joint beamforming and AN (BFA) design into an optimization problem such that the received signal-to-interference-ratio (SINR) at the two legitimate users is over a predefined QoS threshold while limiting the received SINR at the unauthorized user which is under a certain secure threshold. …”
Get full text

Effect of flow direction on the conjugate heat transfer performance of LNG ambient air vaporizer with U-bend by Shanshan Liu, Wenling Jiao, Ping Zhang, Qi Li

“…The optimal AAV installation aligns the overall LNG flow direction perpendicular to the annual prevailing wind at gas terminals, maximizing vaporization efficiency.…”
Get full text

Engineering Lipid–Polymer Nanoparticles for siRNA Delivery to Cancer Cells by Arthur Manda, Abdulelah Alhazza, Hasan Uludağ, Hamidreza Montazeri Aliabadi

“…<b>Background</b>: RNA interference (RNAi) is a powerful tool that can target many proteins without the expensive and time-consuming drug development studies. …”
Get full text