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Hanai, Atsunari,Nakai, Masayoshi,Matsuzaki, Hiroyuki,Ohashi, Hirokazu Council on Tall Building and Urban Habitat Korea 2020 International journal of high-rise buildings Vol.9 No.3
Based on past experiences of natural disasters and fires in Japan, it is stipulated by law that fire-resistant buildings larger than a certain size should be unique in the world. Recent interest in global environmental issues has led to the active introduction of wooden buildings also in Japan, and it is expected that wooden buildings will become larger and higher in size. This paper introduces the background of the development of fire-resistant laminated timber with a "Self-Charring-Stop layer", the contents of this development including other related developments, and the application of these technologies. In addition, towards the realization of much larger and higher buildings in the future, the current problems and issues to be solved are set and the necessity of the future technological development is described. Finally, a conceptual model of wooden high-rise building is proposed, which will be able to be constructed in 2025 by the further technological development.
Hanai, Yuji,Yoshimura, Kazuaki,Matsuki, Junya,Hayashi, Yasuhiro The Korean Institute of Electrical Engineers 2011 The Journal of International Council on Electrical Vol.1 No.2
This paper proposes a new load management method using Heat Pump Water Heater (HPWH) and Electric Vehicle Battery Charger (EV-BC) in a distribution system with a high penetration of Photovoltaic generation system (PV). The proposed method implements a classification of the controllable loads (HP-WH, EV-BC) by distribution section and optimizes operation modes of the classified controllable loads. A distribution section enclosed with two or three IT switches, which are sectionalizing switches with sensors, is defined as a load management cluster, and a large number of controllable loads in a distribution feeder are classified into three clusters. All the customers with controllable loads determine beforehand two operation modes which achieve the satisfactory convenience and energy conservation; one is a nighttime consumption pattern and another is a daytime consumption pattern. Distribution System Operator (DSO) can collect the customers' information such as address codes and operation plans, and select either of the operation modes in each distribution section. The optimal combination of these operation modes is determined by Optimal Power Flow calculation (OPF). The objective is to improve load factor while keeping a power quality of a distribution system. The validity of the proposed method is verified through computer simulations using distribution network model.
Hanai, Yuji,Yoshimura, Kazuaki,Matsuki, Junya,Hayashi, Yasuhiro The Korean Institute of Electrical Engineers 2011 The Journal of International Council on Electrical Vol.1 No.1
In recent years, Photovoltaic generation (PV) has gained a lot of attention due to its potential for contributing to part of the solution to global warming. In addition, the introduction of PV increased rapidly in many houses. If PV is introduced on a large scale, this may cause the allowable voltage produced by each customer to increase thereby deviate the allowable voltage. The installation of a storage battery can decrease the PV's output and control power surges. However, there are serious problems in respect to the installation cost and storage space of batteries. Therefore in this research, the authors propose and verify a new coordinated control method of heat-pump water heaters and electric vehicle battery chargers in a residence with a PV system. The proposed method compensates for the voltage rises and drops deviating from the allowable range by coordinated control of heat-pump water heaters and electric vehicle battery chargers. In order to verify the proposed method, an experimental simulation using an analog type distribution system simulator is carried out.
Realization of Musical Saw Bowing by Industrial Humanoid Robot
H. Hanai,A. Mishima,A. Miura,T. Hirogaki,E. Aoyama 제어로봇시스템학회 2021 제어로봇시스템학회 국제학술대회 논문집 Vol.2021 No.10
In a previous study, we examined the performance of musical saw bows using a western saw, which is not only an unfamiliar tool but also difficult to handle owing to its excellent shape and flexibility among various musical instruments. In the previous study, we achieved performance control by blowing; however, we could not control the sound other than blowing. In this study, we focused on bowing, which is used in the evaluation of musical saw performance, in addition to striking. Moreover, self-excited vibrations must be generated by stick-slip based on the performance. Consequently, the pressure and velocity must be controlled to verify the generation of the self-excited vibration and the vibration itself. In addition to the generation of sound by a self-excited vibration, this study discusses the pure sound nature of the vibration. This approach differs from those implemented in previous studies to suppress the self-excited vibration. Furthermore, we present a method to realize the musical saw movement using an industrial humanoid robot.
Imanishi, Toshiaki,Hanai, Taizo,Aoyagi, Ichiro,Uemura, Jun,Araki, Katsuhiro,Yoshimoto, Hiroshi,Harima, Takeshi,Honda , Hiroyuki,Kobayashi, Takeshi The Korean Society for Biotechnology and Bioengine 2002 Biotechnology and Bioprocess Engineering Vol.7 No.5
In order to control glucose concentration during fed-batch culture for antibiotic production, we applied so called “software sensor” which estimates unmeasured variable of interest from measured process variables using software. All data for analysis were collected from industrial scale cultures in a pharmaceutical company. First, we constructed an estimation model for glucose feed rate to keep glucose concentration at target value. In actual fed-batch culture, glucose concentration was kept at relatively high and measured once a day, and the glucose feed rate until the next measurement time was determined by an expert worker based on the actual consumption rate. Fuzzy neural network (FNN) was applied to construct the estimation model. From the simulation results using this model, the average error for glucose concentration was 0.88 g/L. The FNN model was also applied for a special culture to keep glucose concentration at low level. Selecting the optimal input variables, it was possible to simulate the culture with a low glucose concentration from the data sets of relatively high glucose concentration. Next, a simulation model to estimate time course of glucose concentration during one day was constructed using the on-line measurable process variables, since glucose concentration was only measured off-line once a day. Here, the recursive fuzzy neural network (RFNN) was applied for the simulation model. As the result of the simulation, average error of RFNN model was 0.91 g/L and this model was found to be useful to supervise the fed-batch culture.
Takeshi Kobayashi,Toshiaki Imanishi,Taizo Hanai,Ichiro Aoyagi,Jun Uemura,Katsuhiro Araki,Hiroshi Yoshimoto,Takeshi Harima,Hiroyuki Honda 한국생물공학회 2002 Biotechnology and Bioprocess Engineering Vol.7 No.5
In order to control glucose concentration during fed-batch culture for antibiotic production, we applied so called “software sensor” which estimates unmeasured variable of interest from measured process variables using software. All data for analysis were collected from industrial scale cultures in a pharmaceutical company. First, we constructed an estimation model for glucose feed rate to keep glucose concentration at target value. In actual fed-batch culture, glucose concentration was kept at relatively high and measured once a day, and the glucose feed rate until the next measurement time was determined by an expert worker based on the actual consumption rate. Fuzzy neural network (FNN) was applied to construct the estimation model. From the simulation results using this model, the average error for glucose concentration was 0.88 g/L. The FNN model was also applied for a special culture to keep glucose concentration at low level. Selecting the optimal input variables, it was possible to simulate the culture with a low glucose concentration from the data sets of relatively high glucose concentration. Next, a simulation model to estimate time course of glucose concentration during one day was constructed using the on-line measurable process variables, since glucose concentration was only measured off-line once a day. Here, the recursive fuzzy neural network (RFNN) was applied for the simulation model. As the result of the simulation, average error of RFNN model was 0.91 g/L and this model was found to be useful to supervise the fed-batch culture.
Al-Mamun, M.,Tanaka, C.,Hanai, Y.,Tamura, Y.,Sano, H. Asian Australasian Association of Animal Productio 2007 Animal Bioscience Vol.20 No.6
An experiment was conducted using a [6, 6-$^2H$]glucose isotope dilution method to determine the effects of plantain (Plantago lanceolata L.) on plasma glucose metabolism in sheep taken from a thermoneutral environment and exposed to a hot environment. The sheep were fed either mixed hay (MH) of orchardgrass (Dactylis glomerata L.) and reed canarygrass (Phalaris arundinacea L.) at a 60:40 ratio or MH and plantain (PL) at a 9:1 ratio in a crossover design for each 23-day period. In both dietary treatments the metabolizable energy (ME) and crude protein intake were designed to be isoenergetic and isoproteinous at around maintenance level. The sheep were taken from a thermoneutral environment ($20^{\circ}C$, 70% RH) and exposed to a hot environment ($28-30^{\circ}C$, 70% RH) for 5 days. The isotope dilution method using a single injection of [6, 6-$^2H$]glucose was performed on the $18^{th}$ day of the thermoneutral environment and on the $5^{th}$ day of heat exposure. Plasma glucose pool size was numerically lower (p = 0.26) during heat exposure on both dietary treatments, and numerically higher (p = 0.13) on the MH diet irrespective of environmental temperature. Plasma NEFA concentration (p = 0.01) and glucose turnover rate (p = 0.03) were decreased during heat exposure, but remained similar between diets. It could be concluded that, although no positive impact of plantain on glucose metabolism was found under the present experimental conditions (plantain constituted only 10% of basal diet), plantain herb is an alternative to MH for rearing sheep in both thermoneutral and hot environments.