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Parasteatoda tepidariorum phototaxis to LED illumination Parasteatoda tepidiriorum对LED照明的趋光性
IF 0.3 4区 工程技术
Electronics and Communications in Japan Pub Date : 2023-02-08 DOI: 10.1002/ecj.12388
Masaru Kamano, Kosuke Hironaka, Yuji Kawakami, Takanori Kozai, Takeshi Fujihara, Tao Zheng, Tomoya Konishi
{"title":"Parasteatoda tepidariorum phototaxis to LED illumination","authors":"Masaru Kamano, Kosuke Hironaka, Yuji Kawakami, Takanori Kozai, Takeshi Fujihara, Tao Zheng, Tomoya Konishi","doi":"10.1002/ecj.12388","DOIUrl":"https://doi.org/10.1002/ecj.12388","url":null,"abstract":"","PeriodicalId":50539,"journal":{"name":"Electronics and Communications in Japan","volume":"106 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50124678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of quantum confinement in nanosheet FETs by using a quantum drift diffusion model 用量子漂移扩散模型分析纳米片FET中的量子约束
IF 0.3 4区 工程技术
Electronics and Communications in Japan Pub Date : 2023-02-08 DOI: 10.1002/ecj.12394
Masashi Matsuda, Akira Hiroki
{"title":"Analysis of quantum confinement in nanosheet FETs by using a quantum drift diffusion model","authors":"Masashi Matsuda,&nbsp;Akira Hiroki","doi":"10.1002/ecj.12394","DOIUrl":"https://doi.org/10.1002/ecj.12394","url":null,"abstract":"<p>In this paper, we have analyzed quantum confinement effects in nanosheet MOSFETs by using a quantum drift-diffusion (QDD) model. The QDD model is a device simulator which allows to simulate quantum confinement effects in the inversion layer for advanced MOSFETs. The quantum confinement effects in nanosheets have been analyzed by comparing the simulation results by QDD and drift-diffusion (DD) model. The drain current ratio of DD to QDD is 250.1% at VG = 0.5 V and 180.1% at VG = 0 V. While the maximum electron density of DD exists at the interface between the insulator and the silicon sheet, that of QDD goes to near the center of the silicon sheet. The electron areal density ratio of DD to QDD is 118.3% in the direction of the 10 nm width of the silicon sheet and 176.9% in the direction of the 4 nm width.</p>","PeriodicalId":50539,"journal":{"name":"Electronics and Communications in Japan","volume":"106 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50124679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interaction between diamond and alkali metals and its application to machining of diamond 金刚石与碱金属的相互作用及其在金刚石加工中的应用
IF 0.3 4区 工程技术
Electronics and Communications in Japan Pub Date : 2023-02-07 DOI: 10.1002/ecj.12385
Toshihiro Shimada, Hiroki Takehana, Ichiro Yamane
{"title":"Interaction between diamond and alkali metals and its application to machining of diamond","authors":"Toshihiro Shimada,&nbsp;Hiroki Takehana,&nbsp;Ichiro Yamane","doi":"10.1002/ecj.12385","DOIUrl":"https://doi.org/10.1002/ecj.12385","url":null,"abstract":"<p>The interaction between diamond surfaces and alkali metals was studied experimentally and computationally. Li reacted with diamond above 600°C and significant etching of (100) surface was observed. An attempt was made to apply this etching reaction for electrical discharge machining of diamond tools.</p>","PeriodicalId":50539,"journal":{"name":"Electronics and Communications in Japan","volume":"106 2","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50123735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of a database-driven soft-sensor and its application to a control system 数据库驱动软传感器的设计及其在控制系统中的应用
IF 0.3 4区 工程技术
Electronics and Communications in Japan Pub Date : 2022-10-19 DOI: 10.1002/ecj.12380
Takuya Kinoshita, Haruka Kano, Toru Yamamoto
{"title":"Design of a database-driven soft-sensor and its application to a control system","authors":"Takuya Kinoshita,&nbsp;Haruka Kano,&nbsp;Toru Yamamoto","doi":"10.1002/ecj.12380","DOIUrl":"https://doi.org/10.1002/ecj.12380","url":null,"abstract":"<p>In industries, it is difficult to measure physical quantities such as product quality. In order to estimate it, soft sensors have been proposed. In recent years, the Just-In-Time (JIT) method has attracted attention. According to this method, the output is estimated by extracting data from the database similar to the current situation. On the other hand, a database-driven control system has been proposed in which the JIT is equipped with a learning algorithm. This method calculates the control parameters using a database and has the scheme to learn the control parameters to minimize the control error. This paper proposes a new design method for soft sensors which uses a database-driven approach. Specifically, this paper proposes a method to improve the estimation accuracy without modifying the stored past data by introducing a new modifier <i>c</i> into the learning algorithm. Furthermore, a control system is designed in which the estimated value using the soft sensor is fed back.</p>","PeriodicalId":50539,"journal":{"name":"Electronics and Communications in Japan","volume":"105 4","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137863934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Human dense avoidance based on a coverage control through robots 基于机器人覆盖控制的人类密集躲避
IF 0.3 4区 工程技术
Electronics and Communications in Japan Pub Date : 2022-10-17 DOI: 10.1002/ecj.12383
Shu Morita, Yuki Okura, Chiaki Kojima
{"title":"Human dense avoidance based on a coverage control through robots","authors":"Shu Morita,&nbsp;Yuki Okura,&nbsp;Chiaki Kojima","doi":"10.1002/ecj.12383","DOIUrl":"https://doi.org/10.1002/ecj.12383","url":null,"abstract":"<p>In this paper, we propose an efficient method for human dense avoidance based on a coverage control. Our motivation is to avoid crowding in public facilities such as stations and government offices, and human dense in the current situation of COVID-19 from system and control theory. In this paper, humans and robots are modeled as heterogeneous and homogeneous agents, respectively, which make decisions based on their local information. We suppose a dense situation caused by the rendezvous among humans due to their own inherent dynamics. As a main result, we propose a coverage control for a distributed movement of multiple humans. We also characterize the stationary point analytically in terms of the gains that describe a strength of the interconnection of the agents, and the centers of the Voronoi regions related to the agents. Moreover, we verify the meaning of the characterization from an engineering viewpoint of the dense avoidance. Finally, we show the efficiency of the method based on a numerical simulation.</p>","PeriodicalId":50539,"journal":{"name":"Electronics and Communications in Japan","volume":"105 4","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137692555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Attenuation band impedance matched BRF for measurements of electromagnetic noise 衰减带阻抗匹配BRF测量电磁噪声
IF 0.3 4区 工程技术
Electronics and Communications in Japan Pub Date : 2022-10-17 DOI: 10.1002/ecj.12378
Jun Hayashi, Yoshio Nikawa
{"title":"Attenuation band impedance matched BRF for measurements of electromagnetic noise","authors":"Jun Hayashi,&nbsp;Yoshio Nikawa","doi":"10.1002/ecj.12378","DOIUrl":"https://doi.org/10.1002/ecj.12378","url":null,"abstract":"<p>Wireless communication devices such as wireless LANs and RFIDs are essential for smart home appliances and IoT (Internet of Things) devices in Smart Cities. When measuring the high-frequency noise generated by devices, wireless signals of wireless communication devices and high-frequency noise are measured at the same time. As a result, spectrum analyzers have insufficient dynamic range, or the excess signal from wireless communication devices causes harmonic distortion of the mixer inside the receiver, resulting in inaccurate measurements. Accordingly, a band rejection filter (BRF) is required to attenuate the radio signal. CISPR 16-2-3:2016+A1: 2019 assumes that impedances are matched for measurement, so if the impedance mismatch is large, the expanded uncertainty specified in CISPR 16-4-2:2011+A1:2014+A2:2018 increases. In this study, we propose a new BRF with impedance matching in the attenuation range and show its principle. As a result, the extended uncertainty could be reduced to 3.96 dB for the BRF of this study compared to 10.63 dB for the conventional BRF. In addition, the method comparison of CISPR 16-2-3:2016+A1: 2019 and vector network analyzer shows that the difference in attenuation of the conventional BRF was about −0.8 to 3.3 dB, whereas the BRF in this study were about −0.2 to 0.3 dB. The reduction of the expanded uncertainty and the good measurement results confirm the high usefulness of the CISPR 16-2-3 measurement system for the measurement of weak electromagnetic noise.</p>","PeriodicalId":50539,"journal":{"name":"Electronics and Communications in Japan","volume":"105 4","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137692553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of potential for peak demand reduction of residential buildings by household appliances with demand response 用有需求响应的家用电器来评估减少住宅高峰需求的潜力
IF 0.3 4区 工程技术
Electronics and Communications in Japan Pub Date : 2022-10-17 DOI: 10.1002/ecj.12379
Tetsushi Ono, Aya Hagishima, Jun Tanimoto
{"title":"Evaluation of potential for peak demand reduction of residential buildings by household appliances with demand response","authors":"Tetsushi Ono,&nbsp;Aya Hagishima,&nbsp;Jun Tanimoto","doi":"10.1002/ecj.12379","DOIUrl":"https://doi.org/10.1002/ecj.12379","url":null,"abstract":"<p>Residential appliances remotely controlled by IoT for demand response has attracted much attention for effective peak demand reduction of the uncertainty of consumers’ behaviors. To promote the technology development of such appliances, estimation of the potential for peak demand reduction according to the type of appliances is strongly needed. With this background, the authors conducted a data analysis of demand curves of not only the entire household but also the branches acquired at 496 dwellings in Osaka. Based on this analysis, the potential of peak reduction of aggregated demand of various groups with different dwelling size were quantified for major five appliances, namely air conditioners, microwave ovens, refrigerators, washing machines, and dish washers.</p>","PeriodicalId":50539,"journal":{"name":"Electronics and Communications in Japan","volume":"105 4","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137692552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assist control for human-robot cooperative transportation systems using nonlinear disturbance observer 基于非线性扰动观测器的人-机器人协同运输系统辅助控制
IF 0.3 4区 工程技术
Electronics and Communications in Japan Pub Date : 2022-10-17 DOI: 10.1002/ecj.12382
Yuki Okura, Tomohiro Nakada, Chiaki Kojima
{"title":"Assist control for human-robot cooperative transportation systems using nonlinear disturbance observer","authors":"Yuki Okura,&nbsp;Tomohiro Nakada,&nbsp;Chiaki Kojima","doi":"10.1002/ecj.12382","DOIUrl":"https://doi.org/10.1002/ecj.12382","url":null,"abstract":"<p>In this paper, we investigate an assist control for a system in which a human and a robot cooperate to transport an object toward a designated position and angle. We consider a situation where the force due to the human to the object cannot be measured directly. In order to tackle this situation, an assist control with a nonlinear disturbance observer is proposed. By using the observer, we estimate the control input due to the human from position and angle of the object. Moreover, we design the control input by the robot to assist the human input based on the estimates by the disturbance observer. The effectiveness of the proposed method is discussed by numerical simulations for the minimum jerk model.</p>","PeriodicalId":50539,"journal":{"name":"Electronics and Communications in Japan","volume":"105 4","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137692554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancement of photocatalytic degradation by combination of light illumination and bias voltages toward anti-virus coating applications 光照明和偏置电压相结合增强光催化降解对抗病毒涂层应用的影响
IF 0.3 4区 工程技术
Electronics and Communications in Japan Pub Date : 2022-10-14 DOI: 10.1002/ecj.12381
Keita Shimakura, Sho Saeki, Yuta Segawa, Taizo Kobayashi
{"title":"Enhancement of photocatalytic degradation by combination of light illumination and bias voltages toward anti-virus coating applications","authors":"Keita Shimakura,&nbsp;Sho Saeki,&nbsp;Yuta Segawa,&nbsp;Taizo Kobayashi","doi":"10.1002/ecj.12381","DOIUrl":"https://doi.org/10.1002/ecj.12381","url":null,"abstract":"<p>In this work, oxidative decomposition reaction of organic reactant on TiO<sub>2</sub> surface was investigated under soaking conditions by combination of applying voltages and light illumination. Since carriers of TiO<sub>2</sub> thin films originate from point defects such as oxygen vacancies, reactive carriers possibly exist on TiO<sub>2</sub> thin films even under room light illuminating condition and dark condition. Thus, enhancement degrees of photooxidation by applying bias voltages onto TiO<sub>2</sub> thin films were compared under dark, visible light illumination and UV illumination conditions. Bias voltages were applied to localize the photogenerated carriers at the vicinity of TiO<sub>2</sub> surface for enhancing photooxidation. Sol-gel derived TiO<sub>2</sub> thin films with porous nano structure exhibited a stronger oxidative decomposition reaction than sputter-deposited TiO<sub>2</sub> thin films.</p>","PeriodicalId":50539,"journal":{"name":"Electronics and Communications in Japan","volume":"105 4","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137679968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Examination of insulation diagnosis in substation by neural network with phase-resolved partial discharge pattern reconstruction 基于相位分解局部放电模式重构的神经网络在变电站绝缘诊断中的应用
IF 0.3 4区 工程技术
Electronics and Communications in Japan Pub Date : 2022-09-20 DOI: 10.1002/ecj.12360
Shunya Fujioka, Hideaki Kawano, Masahiro Kozako, Masayuki Hikita, Osamu Eda, Shuhei Yaguchi, Yasuharu Shiina
{"title":"Examination of insulation diagnosis in substation by neural network with phase-resolved partial discharge pattern reconstruction","authors":"Shunya Fujioka,&nbsp;Hideaki Kawano,&nbsp;Masahiro Kozako,&nbsp;Masayuki Hikita,&nbsp;Osamu Eda,&nbsp;Shuhei Yaguchi,&nbsp;Yasuharu Shiina","doi":"10.1002/ecj.12360","DOIUrl":"https://doi.org/10.1002/ecj.12360","url":null,"abstract":"<p>Several studies for partial discharge (PD) pattern recognition using artificial neural network (ANN) were reported in the early 1990s. Usually, in an actual field such as a substation, data on partial discharge is scarcely available, or even rare. In many cases, the power supply phase required for the PRPD pattern cannot be easily obtained. We propose an ANN method that shifts the phase in which the maximum signal intensity detected with PD sensors is generated and used it as training and input data, even for the few phases resolved PD data available in the field. This ANN method was applied to the PRPD pattern obtained in a practical field. As a result, it was shown that the discrimination rate between PD and noise was improved, and therefore the proposed ANN method was found to be effective.</p>","PeriodicalId":50539,"journal":{"name":"Electronics and Communications in Japan","volume":"105 4","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137869295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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