AIJ Journal of Technology and Design
Online ISSN : 1881-8188
Print ISSN : 1341-9463
ISSN-L : 1341-9463
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Volume 22, Issue 50
Displaying 1-50 of 74 articles from this issue
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Materials and Construction
  • THE QUESTIONNAIRE SURVEY ABOUT CONCRETE CLOGGING THE PIPELINE DURING PUMPING FOR PUMPING CONSTRUCTORS IN TOKAI AREA
    Atsunori MIYATA, Yoshihisa NAKATA, Shuzo OTSUKA, Takumi ARAMAKI, S ...
    2016 Volume 22 Issue 50 Pages 1-4
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.1
    JOURNAL FREE ACCESS
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    Although concrete clogging has been a problem in the Tokai area, blockage of the actual situation is unclear. Therefore, the purpose of this study is to reveal the actual situation of concrete clogging in Tokai area. We conducted a questionnaire survey about actual situation of concrete clogging of pumping constructors in Tokai area. As a result, this paper showed actual situation about such as pipeline and position when concrete clogging has occurred. Also, this paper elucidated that pumping constructors have recognized that quality of concrete is a problem.
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  • QUESTIONNAIRE SURVEY TARGETED TO REINFORCEMENT CONTRACTORS ON THE ACTUAL STATE OF REINFORCEMENT PLACING
    Naohiro NIITSUMA, Takeshi HIWAKI, Keiichi KUDO, Yoshihisa NAKATA, ...
    2016 Volume 22 Issue 50 Pages 5-10
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.5
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    Reinforcement placing of concrete buildings are becoming increasingly overcrowded or advanced in response to high earthquake resistance and high durability. Therefore, reinforcement processing and placing becomes more difficult, sometimes interpretation of reinforcement placing varies from each person. However, actual state of reinforcement placing from reinforcement contractor’s standpoint has not been fully elucidated. The purpose of this study is to investigate the actual state of reinforcement placing by the questionnaire survey targeted to reinforcement contractors. As a result, this paper showed the actual state of reinforcement placing about contract system, calculation, working drawing, construction scheme and construction method.
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Structures
Fire Safety
  • PERFORMANCE BASED FIRE SAFETY DESIGN OF AN OFFICE BUILDING WITH STEP VOIDS
    Yoshikazu MINEGISHI, Kiyoshi FUKUI, Shuji MORIYAMA, Jun KITAHORI, Y ...
    2016 Volume 22 Issue 50 Pages 137-142
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.137
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    This paper reports the case study of performance based fire safety design of office building with step voids. This was designed by voluntary fire safety engineers of Japan association of fire safety engineers (JAFPE) and presented at international conference of Society of Fire Protection Engineers (SFPE). First, fundamental fire safety strategy is proposed and following performance are verified by not only usual methods but also some progressive methods; smoke control, evacuation behavior, fire spread prevention and fire-fighting strategy. Moreover, through comparison with other team’s proposal on the conference, possibility of other design approaches and development of more sophisticated verification method etc. are also discussed.
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Environmental Engineering
  • VISUAL AND SOUND ENVIRONMENTS PERCEIVED IN OPEN-AIR CAFÉS AT NIGHT
    Shigeo KOBAYASHI
    2016 Volume 22 Issue 50 Pages 143-146
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.143
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    This research investigated the visual and sound environments perceived at night in 116 open-air cafés. As a result of the investigation, visual elements tended to be perceived stronger than sound elements. Although the sound elements were not perceived frequently, they were evaluated to be comfortable to the same extent with the visual elements. BGM, tableware, lights of the terrace tables, and trees tended to be felt comfortably, and the elements in connection with traffic, such as cars and pedestrian’s voices, tended to be felt uncomfortably. The open-air cafés which continued inside and outside spaces while the pedestrian’s eyes were controlled tended to provide comfortable visual and sound environments.
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  • A STUDY ON COGNITION OF LANDSCAPE ELEMENTS IN STATION PLAZAS USING CAPTION EVALUATION METHOD:
    Landscape survey in station plazas in and around Fukuoka city
    Masamichi UEDA, Yu KAWAMURA, Naoyuki OI, Hironobu TAKAHASHI
    2016 Volume 22 Issue 50 Pages 147-151
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.147
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    Landscape survey using Caption Evaluation Method was conducted in station plazas in and around Fukuoka city.
    The objective of the survey is grasping and organizing users’ cognition of landscape elements in station plazas in order to make landscape quality of station plazas better in the future. As a result, several positive image items and negative image items are found, as well as bipolar image items which are newly proposed.
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  • STUDY ON PREDICTION OF VIBRATION RESPONSE OF DECK PLATE SLABS
    –Numerical analysis on vibration and floor impact sound of deck plate slabs in steel structure buildings part 2–
    Yu AIDA, Norihisa HASHIMOTO
    2016 Volume 22 Issue 50 Pages 153-158
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.153
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    Aiming to establish a floor impact sound prediction method for deck plate slabs in steel structure buildings, a response analysis of floor vibration by the finite element method with coupling of in-plane and bending displacement was verified. First, damping constants of the actual deck plate slabs were measured. Then, using the measured damping constants, a vibration response analysis which modeled the cross-sectional composition of deck plate slabs and steel H-beams was conducted. The analysis of the vibration response to the standard heavy impact source showed good correspondence with the measurement.
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  • COMPARISON STUDY ON EFFECT OF SLAT SHAPE AND OPTICAL PROPERTY OF GRADATION BLIND ON REDUCTION OF ELECTRIC CONSUMPTION FOR AMBIENT LIGHTING
    Tomoko TANIGUCHI, Yukio TORII, Eiji SAKUMA, Yoshihiro KURAMOTO, Mi ...
    2016 Volume 22 Issue 50 Pages 159-164
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.159
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    In order to identify the effect of the slat shape and optical property of Gladiation blind on reduction of electricity consumption for ambient lighting, a numerical simulation and measurements were carried out. The result showed the effect of slat shape and optical property of Gradation blind on the reduction of the electricity consumption for ambient lighting. It was also shown that the reduction of the electricity consumption for ambient lighting by gradiation blind was greater than that by a conventional blind with an automated dimmable lighting system.
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  • INTEGRATED LIGHTING DESIGN OF THE STREET AND THE NEIGHBORING BUILDINGS IN COOPERATION WITH PUBLIC AND PRIVATE SECTORS
    Shigeo KOBAYASHI
    2016 Volume 22 Issue 50 Pages 165-170
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.165
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    This research discussed about improving a streetscape together with the street and the surrounding sites at night. Based on investigation of the existing street and interviews to residents, three goals, “pedestrians should be principal in the street”, “coordination of the whole streetscape” and “expression of the characteristics of the area”, were set up as a role of lighting environment at night. The lighting environment according to those purposes was fixed over 29 days. During the experimental period, a large number of low-intensity lights distributed in the low position of 4 m or less. The questionnaire survey to residents or pedestrians was carried out. It was confirmed that the goals set up in the beginning had been achieved.
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  • MEASUREMENTS AND ASSESSMENT OF INDOOR THERMAL ENVIRONMENT WITH A WOOD STOVE
    Seiya YONEZAWA, Masayuki MAE, Hisashi MIURA, Yoshihiko AKAMINE, Ko ...
    2016 Volume 22 Issue 50 Pages 171-176
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.171
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    Installing wood stoves into detached houses is becoming popular recently, and is considered to be one solution to realize low-carbon society. Nevertheless, there is few measurements done in Japan to assess indoor thermal environment by wood stoves, making the proper room size heated by one stove unclear. The paper shows the analysis on indoor thermal environment when a room is heated by a wood stove by constructing a detached house with numbers of sensors installed for detailed experiment. After confirming the validity of CFD, methodology to predict proper room size to be heated by a wood stove is introduced.
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  • RELATED ANALYSIS BETWEEN LAND COVER AND TEMPERATURE GRADIENT IN WEATHER OBSERVATION POINTS
    −Analysis utilizing building height information that was estimated from ASTER GDEM−
    Emi IDE, Naoki TAKAGI, Kazuhiro IWAI
    2016 Volume 22 Issue 50 Pages 177-181
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.177
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    The purpose of this study is to get the height information using the ASTER GDEM, and grasp the relationship between climate change and land cover including the height information. Also, verify the usability of ASTER GDEM in urban environmental field.
    By including the height on land cover information, enables classification in the height direction, for example, are “forest and grassland,” “low-rise cities and high-rise city”. In climate change, shows the highest figure, about 0.06 (°C/year) at the urban classes. Also, confirmed tendency to “Hidamari effect” at the forest class.
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  • ENERGY REDUCTION RATE IN A HOSPITAL
    Examination of the correction method for the energy consumption reduction rate with consideration for the temperature difference in the hospital
    Kenichi TSUNODA, Yoshiharu ASANO, Hideki TAKAMURA, Kazuhiro IWAI, ...
    2016 Volume 22 Issue 50 Pages 183-187
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.183
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    The environmental impact and energy consumption database is used for reducing carbon dioxide effectively in commercial buildings. This study is a part of a project that aims at the development of the database for energy consumption of commercial buildings in Japan. This paper describes the correction method for the primary energy consumption reduction rate with consideration of a temperature change at a hospital from 2010 to 2013.
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  • VERIFICATION OF DAYLIGHTING POTENTIAL IN PERIMETER ZONE USING DAYLIGHT AUTONOMY
    Kyosuke HIYAMA, Yoshinao SATO
    2016 Volume 22 Issue 50 Pages 189-193
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.189
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    Information on how much daylighting can reduce the electricity used in illumination is useful for designing green buildings. In this paper, concepts of “daylight area” are reviewed considering several guidelines. Daylighting potential in an area was investigated with a metric known as Daylight Autonomy using a dynamic daylighting simulation software. In the investigated cases, the direction of windows had little influence. In addition, although a simple analysis using daylight factor and diffuse horizontal illuminance is not sufficient to simulate sequential daylighting, it may be useful to predict Daylight Autonomy under the climatic conditions in Japan.
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  • RESEARCH ON INSTALLATION STATE OF AIR CLEANER AND HUMIDIFIER AT KINDERGARTENS AND NURSERIES IN TOKAI REGION
    Tetsu AOKI, Hiroki IMAEDA, Akio MIZUTANI
    2016 Volume 22 Issue 50 Pages 195-198
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.195
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    In this study, we conducted a questionnaire survey to determine the installation state of air cleaners and humidifiers in the kindergartens and nurseries in the Tokai region. The results of the survey showed that the installation of these equipment increased rapidly against a backdrop of the epidemic of pandemic influenza in 2009. As younger children and infants stayed at nurseries for long durations, the installation rate of the equipment was higher at nurseries than at kindergartens. However, open windows for ventilation were used as the principal method of preventing infection of influenza at both kindergartens and nurseries.
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  • VALIDATION OF ENERGY SAVING ON “LEADING PROJECTS ADOPTED BY PROMOTION PROGRAM FOR CO2 EMISSION REDUCTION PROJECTS” FOR RESIDENTIAL HOUSES
    Outline of the project and actual condition survey on detached houses Part 1.
    Tsuyoshi SEIKE, Takashi AKIMOTO, Mao SERIKAWA, Makoto SATOH, Ken ...
    2016 Volume 22 Issue 50 Pages 199-204
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.199
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    In this research, we investigated living style of residents, visualization facilities and energy consumption in houses which were built as leading projects by promotion program for CO2 emission reduction projects of MLIT (Ministry of Land, Infrastructure, Transport and Tourism).
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Architectural Planning and Design
  • COMPARISON OF RENOVATION IN 2DK-TYPE AND 3K-TYPE CONDOMINIUM PLAN
    Shugo MAEDA
    2016 Volume 22 Issue 50 Pages 205-208
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.205
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    The aim of this study is to identify the change of the plan in public condominium for years. One has 48 condominium units built in 1966 and the other has 56 units built in 1956. Those are investigated and the present plans were drawn. And all plans were classified based on the relationship and function between each of rooms. In addition, this classification is compared each other. Then some characteristic feature has been found.
    These studies make clear that what is a sustainable in houses and how to live in a small condominium unit for long year. And this identification is useful to design new condominiums that live in for over 50 years.
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  • A STUDY ON SUPPLY SITUATION AND SPACE PLANNING OF PUBLIC RENTAL HOUSING BY DEPARTMENT OF HUMAN SETTLEMENT AND HOUSING DEVELOPMENT, MINISTRY OF CONSTRUCTION IN MYANMAR
    Reiko KITAHARA, Satoko SHINOHARA
    2016 Volume 22 Issue 50 Pages 209-214
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.209
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    Department of Human Settlement and Housing Development has been working on Public Rental Housing Project, Hut to Apartment Project and Low Cost Housing Project. Public Rental Housing Project had been constructed at 12 sites in Yangon. The building type of public rental housing is wooden row house and detached house, mainly RC twin staircase house. In the dwelling unit of twin staircase house, there is living room, bedroom, kitchen, shower room, toilet, storage and verandah. In all rooms, the window has been reserved. The common and public facilities by DHSHD and Yangon City Development Committee (YCDC), and the living facilities by residents and resident organizations, are established in the site. DHSHD housing office, YCDC township office and Dama Yone have been playing the central role of housing estates.
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  • A STUDY ON ALTERNATIVE USAGE OF GREENHOUSE IN RURAL-URBAN FRINGE
    Ryoji NAKASHIMA, Akihiko IWASA, Satoshi BODA, Shiori SUZAWA
    2016 Volume 22 Issue 50 Pages 215-218
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.215
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    This study aims to explore the actual situation of rural-urban fringe through on-site survey of alternative greenhouses in Niigata city. The alternative greenhouses are utilized not for agricultural use but for living, entertaining use and so on. Changing of a form and use of the alternative greenhouses are influenced by pragmatic way for a resident such as self-repairing and availability of materials.
    As a result, the study reveals that the form of the alternative greenhouses and the surrounding environment are mutually related. Furthermore the alternative greenhouses play a key role in adjusting the resident’s demands between urban and rural area.
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  • A STUDY ON ACTIVITY OF OUTDOOR SPACE WITHOUT FENCE AND INHABITANT CONSCIOUSNESS
    Tatsuya MAJIKINA
    2016 Volume 22 Issue 50 Pages 219-224
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.219
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    In cold region, houses without fence are well seen. The aim of this paper is to grasp the actual conditions and inhabitant consciousness about living outdoor space with house’s fence or not. The result of surveying in Muroran City, becomes the following.
    1) Houses without fence increase. 2) There is a little difference of the actual conditions and inhabitant consciousness between houses with fence or not. 3) Houses with fence have a feature not as privacy but as ornamentation. 4) Almost residents with conditions of no fence do not have a will to set fences.
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  • CHARACTERISTICS OF UTILIZATION OF A COUNSELING AND SUPPORT CENTER IN A SUPER-AGING HOUSING FACILITY OUTSIDE A HOSPITAL: A CASE STUDY OF K CENTER
    Naoko NISHISAKA, Kenji TAKEMIYA
    2016 Volume 22 Issue 50 Pages 225-230
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.225
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    This study aims to clarify the characteristic of the actual usage of K Center, located in a super-aging housing facility outside a hospital in Shinjuku, Tokyo. K Center was modeled after Maggie’s Centres, which originated in the United Kingdom, and provides counseling support and a home-like environment to users. In this study, we conducted observational research at K Center for 16 days. We recorded the usage of the interior facilities and the behavior of users, and asked staff members about individual users’ attributes at the end of each research day. Furthermore, we conducted an interview survey with the director of K Center regarding improvement of the center.
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  • VERIFICATION OF EFFECTS OF ENVIRONMENTAL SETTING ON ACTUAL ACTIVITY OF AFTER-SCHOOL DAY CARE SERVICE FOR SPECIAL NEEDS CHILDREN
    Masayoshi KOGA, Kiyomi OSAKU, Asuka YAMADA
    2016 Volume 22 Issue 50 Pages 231-236
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.231
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    This paper examined management and actual activity of afterschool day care services for special-needs children. Effects were verified through renovation of the environmental setting in one facility. From interview conducted with the after-school-day-care service in A wards, environment setting were lesser in quality. Observation surveys noted problems in safety and calmness of children with disability. To solve this problem, the environmental setting was modified, allowing children who would like to calm down to choose a static space. Environmental setting is effective in improving quality of support and activity in after-school day care services.
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  • COMMON SPACE REFURBISHMENT FOR IMPROVING THE THERAPEUTIC ENVIRONMENT IN AN ACUTE HOSPITAL
    –Case study of Tsutsumare Salon at Tsukuba Medical Center Hospital–
    Yukari IWATA, Momoyo KAIJIMA, Toshihiro HANAZATO
    2016 Volume 22 Issue 50 Pages 237-242
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.237
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    This report verifies the achievements of a refurbishment project intended to change the family private room into a multi-use common space in terms of its use and function recognition. The findings, after the refurbishment has evidenced that the common space is mainly used by patients and their families as a calm place for chatting and rehabilitating. However, there are several cases of nonuse and lack of function recognition particularly from part of the hospital staff. Consequently, the efforts to increase the function recognition are focused on promoting an active participation of the hospital staff during future refurbishment processes.
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  • CHANGES OF THE NUMBER OF ELEMENTARY SCHOOLS AND PUPILS IN HIROSHIMA PREFECTURE (1959 - 2010)
    Reiko SHIMOKURA, Mahito NAKAZONO, Takehiro KONISHI, Akira USHIJIMA ...
    2016 Volume 22 Issue 50 Pages 243-248
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.243
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    This paper aims to analyse the changes in pupil numbers and resulting school closures. From 1959 to 1968 the sharp decline in the number of children resulted in the amalgamation and reorganization of schools apace. Between 1969 and 1982 pupil numbers increased and many new schools were established. But after that pupil numbers started to decrease again. As the large scale merging of municipalities took place from 2003 to 2010, many schools shut down. We classified municipalities into 9 categories according to the fluctuation of the number of pupils and schools in them and analysed characteristics of the types.
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  • THE CHARACTERISTICS OF AN ALLEY AND STONED WALL LANDSCAPE IN OGI ISLAND, JAPAN
    Yoko FUJII
    2016 Volume 22 Issue 50 Pages 249-252
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.249
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    Ogi-island in the Seto Inland Sea has a unique landscape with stone retaining walls and alleys. With depopulation and aging, the quantity of open spaces increased. As the stone wall degrades, the landscape heritage is threatened. We clarified the characteristics of the landscape by its facade and alley configuration. The study finds that the stone wall has a high heritage and aesthetic value, but is threatened by modern repairs. Three alley types were identified namely, V Alley, U Alley and L Alley.
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  • A STUDY ON CHASING ALGORITHM AND WALKING PARAMETERS ACQUISITION USING HOME ROBOT
    Masahiro IIDA, Akira MITA
    2016 Volume 22 Issue 50 Pages 253-257
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.253
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    A system that is implemented into a home robot for human chasing and walking parameters acquisition is proposed in this study. This system will be a key component of our biofied building that interfaces residents and buildings so that the building spaces can be safer, more comfortable and more convenient.
    The human chasing algorithm is able to estimate aging status of a resident by acquiring walking parameters while the robot is chasing the resident behind. The walking parameters include knee joint angle, stride time, stride length and walking speed.
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  • CHANGES OF THE NUMBER OF ELEMENTARY SCHOOLS AND PUPILS IN OKAYAMA PREFECTURE (1959 - 2010)
    Shinichiro KURISAKI, Mahito NAKAZONO, Takehiro KONISHI, Akira USHI ...
    2016 Volume 22 Issue 50 Pages 259-264
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.259
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    This paper aims to analyze the transitions in pupil numbers and resulting school closures. From 1959 to 1973 the sharp decline in the number of children resulted in the amalgamation and reorganization of schools apace. Between 1974 and 1982 pupil numbers increased and a number of new schools were established. But after that pupil numbers started to decrease again. As the major merging of municipalities took place from 2000 to 2010, many schools shut down. We classified municipalities into 7 types determined by the fluctuation of the number of pupils and schools in them and analyzed characteristics of the types.
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  • DEVELOPMENT OF POST OCCUPANCY EVALUATION SYSTEM BASED ON USER BEHAVIOR LOGS
    Yuya IGARASHI, Masashige MOTOE
    2016 Volume 22 Issue 50 Pages 265-268
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.265
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    We developed Post-Occupancy Evaluation system based on the behavior monitoring logs of facility users. Using this system, we could put equal questionnaire survey into practice. Investigating habituation of and affection for facility with the same condition of user experience provides more comparable results than the conventional survey. This report explains summary and property of system, and demonstrating the system in the educational facility of new university.
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  • A RESEARCH ON PRODUCTION SYSTEM AND USAGE SITUATION OF LOCALLY PRODUCED LUMBERS OF PUBLIC WOODEN BUILDINGS IN SHIMANE PREFECTURE
    Kenji GOTO, Hisataka KOBAYASHI, Shigeo NAKANO
    2016 Volume 22 Issue 50 Pages 269-274
    Published: February 20, 2016
    Released on J-STAGE: February 20, 2016
    DOIhttps://doi.org/10.3130/aijt.22.269
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    In this study, we focused on the large-scale wooden public buildings in Shimane Prefecture, and researched on wood procurement and production system. As a result, the following findings were revealed. 1) For wood preparation, local governments provide the preparation period by publishing the information of building. 2) For the preparation of drawings and construction suppliers, production systems are different depending on the size and the person in charge of local government. 3) For corresponding to the demand of locally produced material, regional organizations must increase the stock of wood, and it is necessary that various timber factories work together.
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