Calculation Method of Electric Field Induced by ELF Electric Field in Human Bodies using Two-step Process Method Combining Fast-multipole Surface Charge and SPFD Methods
Regarding evaluation of human safety for exposure to ELF (extremely low frequency) electric field, numerical electromagnetic calculation on anatomical human model is carried out to obtain an induced inner electric field. ... more
Spatio-temporal Resolved Measurements of Optical Emission Intensities of a High-repetition Nanosecond Pulsed Helium Glow Discharge Under Sub-atmospheric Pressure
Dynamic behaviors of a high-repetition nanosecond pulsed helium glow discharge under a gas pressure of 10 kPa were investigated. In particular, spatio-temporal resolved measurements of optical emission intensities of the ... more
Uniform carbon film was grown on silicon substrate treated by low energy electron at temperature of 60 degrees in the methanol solution. The treatment was carried out to modify the silicon surface by electron irradiation ... more
AC Impedance Measurement of Oil Production Green Algae
論文No: ページ数: 2 日付: 2019/07/01
著者: 長田 昭義（大阪工業大学工学研究科電気電子・機械工学専攻），福西 光明（大阪工業大学工学研究科電気電子・機械工学専攻），長谷川 拓哉（大阪工業大学工学研究科電気電子・機械工学専攻）
キーワード : 緑藻類の量産化，交流インピーダンス計測法，コールコールプロット特性 mass production of green algae，AC impedance measurement method，Cole-Cole plot
Impedance property of chlorella solutions was examined on AC frequency bands of 10Hz to 1.2MHz. Impedance behavior at frequency bands of 10Hz to 10kHz has a meaningful result that the resistances in chlorella solutions d ... more
The tactile display is a device that transmits shape and character informations by giving a stimulus sense of users. This letter proposes a tactile display by using Electrorheological (ER) suspension. To achieve the prac ... more
An electrical treeing is known as one of deterioration phenomena in a solid insulation. In order to understand treeing propagation phenomena, its visualization technique is essential. We have conducted observation of ele ... more
Fault Current Interrupting Arcing Horns (FCIAH) for 77kV overhead transmission lines are a countermeasure against lightning damage which break fault current within an AC cycle, and greatly contribute to reducing power in ... more
This paper presents the progress of an energy economic model, named Dynamic Multi-Sector Energy Economic model (DMSEE) and suggests optimum power generation mix in Japan in 2050. This model is based on general equilibriu ... more
Measured Evaluation of PV-DG-Hybrid Power Solutions in Indian Japanese Industrial Park
論文No: ページ数: 8 日付: 2019/07/01
著者: 世古口 雅宏（（株）日立製作所サービス & プラットフォーム ビジネスユニット），山田 哲夫（（株）日立製作所サービス & プラットフォーム ビジネスユニット），阿部 佑亮（（株）日立製作所インダストリアル プロダクツビジネスユニット），高田 良宏（（株）日立製作所電力ビジネスユニット），吉岡 正博（（株）日立製作所），坂本 理一郎（（株）日立製作所）
キーワード : 太陽光発電システム，ディーゼル発電機，協調制御，周波数制御能力 solar power system，diesel generator，cooperative control，frequency control capability
The authors constructed a micro grid by interconnecting multiple power sources. Low cost cooperative operation method of PV and DG was developed. The proposed method was evaluated by time axis simulation. It is possible ... more
Characteristics of PTFE ablation due to SF6 arc exposure was studied to predict the ablated mass of PTFE nozzle in high-voltage circuit breaker. From the measurement of the ablated mass, the predominant factor of the PTF ... more
This paper describes an experimental study on multiphase flashover in 6.6kV medium voltage line in Japan. The experiments simulate a direct lightning strike to the top of concrete pole of the distribution line. A flashov ... more
At Syowa Station in Antarctica, the majority of necessary heat and electric energy is currently supplied by fossil fuels transported from Japan. In the future, it is expected that the power consumption will increase at S ... more
ZnO materials exhibit excellent nonlinear electric characteristics and the particles of ZnO with different sizes are also used as fillers in composite material. In this paper, the durability tests were conducted with dir ... more
Feature Extraction of Blood Pressure from Facial Skin Temperature Distribution Using Deep Learning
論文No: ページ数: 7 日付: 2019/07/01
著者: Kosuke Oiwa (College of Science and Engineering, Aoyama Gakuin University), Akio Nozawa (College of Science and Engineering, Aoyama Gakuin University)
キーワード : blood pressure sensing，convolutional neural network，deep learning，facial skin temperature distribution，feature extraction，non-contact sensing
Vital sign monitoring in daily life is very important for the early detection of hypertension, which causes cerebrovascular and cardiovascular diseases. A non-contact vital sign sensing is essential for vital sign monito ... more
Rehabilitation is important for hemiplegic patients after stroke to improve their motor deficit. For recovering and keeping their motor function following stroke, it may be effective to do rehabilitation at not only reha ... more
The central nervous system does not control multiple muscles independently, whereas it manipulates a musculoskeletal system with redundant degrees of freedom. In specific, muscle synergy that represents muscle coordinati ... more
In this paper, we propose a new method to update parameters of the controller implemented in the closed loop system. The proposed parameter tuning method here requires only one-shot output data obtained in the closed loo ... more
In a system that suppresses power fluctuation caused by wind power and solar power generation by a storage battery (We call it wind turbine and photovoltaic power generation system, WPBHS), it is assumed that the number ... more
Generally, electrical machines are designed using CAE (computer aided engineering) software. In addition, it is combined the design with optimization method for improving various objective functions such as magnetic path ... more
In recent year, embedded systems equipped with multi-core processor have been increasing to improve performance and energy saving. When tasks are executed in parallel on multi-core of embedded systems, a mechanism for mu ... more
Freshness evaluation of Ezoshika meat based on bioelectrical impedance analysis (BIA) using LCR meter is carried out to estimate the quality of the meat. An arc is extracted from a locus of measured impedance to evaluate ... more
Hippocampal adult neurogenesis is hypothesized to contribute spatial pattern separation. However, it is unclear whether this effect depends on the structure. In order to find structure independent functions at a cell pop ... more
Exploring a Method for Inter-module Time Delay Training in a Semi-separated Dissociated Neuronal Network
論文No: ページ数: 2 日付: 2019/07/01
著者: Chih-Hsiang Chang (Department of Precision Engineering, School of Engineering, The University of Tokyo), Kenta Shimba (Department of Precision Engineering, School of Engineering, The University of Tokyo), Takahiro Asahina (Department of Precision Engineer
キーワード : temporal memory，time-delay stimulation，dissociated neuronal network
Time-delay stimulation in rat cortical slices is considered to be a good experimental model for studying temporal learning, an intrinsic property of the cortical circuit. However, limited knowledge exists surrounding the ... more
Plant factories are attracting worldwide attention as a technology for stably producing crops. One of the problems of plant factories is tipburn, which is a physiological disorder of crops. If tipburn occurs, its identif ... more
A New Investigation of Automatic Sleep Stage Detection using Decision-Tree-Based Support Vector Machine and Spectral Features Extraction of ECG Signal
論文No: ページ数: 8 日付: 2019/07/01
著者: Edita Rosana Widasari (Interdisciplinary Graduate School of Agriculture and Engineering, Dept. of Material and Informatics, University of Miyazaki), Koichi Tanno (University of Miyazaki), Hiroki Tamura (University of Miyazaki)
キーワード : ECG，sleep stage，normalized LF band power，normalized HF band power，machine learning classifiers
This research is proposed to investigate an easy, fast, and effective method for automatic sleep stage detection using spectral features extraction from electrocardiography (ECG) signal alone. Sleep stage detection is th ... more
Stability Analysis of an Active Noise Control System Using Single Adaptive Filter with an External Injection Noise and an Acceleration Method of Adaptive Algorithm
論文No: ページ数: 7 日付: 2019/07/01
著者: 小林 正樹（中部大学大学院 工学研究科）
キーワード : アクティブノイズコントロール，適応フィルタ，信号処理，騒音抑圧，相関関数 active noise control，adaptive filter，signal processing，noise suppression，correlation function
In this paper, the stability analysis of an active noise control system using single adaptive filter with an external injection noise and an acceleration method that makes use of the property of this noise are discussed. ... more
A learning classifier system is an adaptive system that obtains a set of appropriate action rules that adapts to multi-step problems by training action rules defined in if-then form by trial and error process, in a simil ... more
In this paper, we propose the 1+n/k frequency divider which does not depend on the duty ratio of the multi-phase clock. The proposed circuit does not have to waveform shape the multi-phase clock which is an input signal. ... more
Potential therapy, using a device to create an electric field around a person, is widely used as a home-healthcare apparatus to treat ailments such as headaches, muscle stiffness, or insomnia. However, the mechanisms for ... more
In this paper, we extend the proposed reinforcement learning with multiplex learning space to an environment that needs delay time for getting rewards. Concreatly, we prepare the multiplex learning spaces corresponding t ... more
