• 제목/요약/키워드: Barrier-Free

검색결과 416건 처리시간 0.03초

압출성형을 이용한 플라스틱 방음벽 구조물 제작 연구 (Manufacturing of Plastic Noise Barrier Structure Using Extrusion Molding)

  • 김형국
    • 한국기계가공학회지
    • /
    • 제20권6호
    • /
    • pp.76-81
    • /
    • 2021
  • A plastic noise barrier is a structure installed to minimize noise, and it is composed of the main plate, sound-absorbing plate, and sound-absorbing material. Plastic noise barrier structures have several advantages compared to other products, such as light weight, anticorrosion, durability, easy assembly, rapid construction, and low costs. In this study, the main and sound-absorbing plates were manufactured through extrusion molding, and the sound-absorbing plate was finished with a press to improve the conventional injection molding. Extrusion molding dies and punch dies were designed, and a profile extrusion-molding system was developed. Thus, inexpensive and efficient sound-absorbing and main plates can be produced, and the noise barrier structure can be assembled rapidly. Additionally, a noise barrier structure with extended service life and excellent quality can be constructed by creating uniform free space to accommodate increased temperatures after assembly and installation.

남해안 해수욕장 편의시설의 무장애 실태조사 및 분석 (A Study on the Analysis and Investigation about Barrier-Free in the southern coast of Korea Beach Facilities)

  • 김현태
    • 한국농촌건축학회논문집
    • /
    • 제16권3호
    • /
    • pp.45-52
    • /
    • 2014
  • Recently, Korean people are more interested in leisure time as the Korean economy has enjoyed the economic growth on a continual basis. Along with it, the disabled people's demand for enjoying the beach is growing. To meet the disabled people's demand for enjoy the beaches, it is important to prepare the convenient facilities where the disabled people in the wheel chair can use comfortably, including the handicapped parking area, toilet for the disabled, shower stall room and am bathhouse. On the backdrop of this, the study has been made on the obstacles which keep the disabled people from using the convenient facilities installed on 12 beaches in the southern coat of Korea from the perspective of barrier free design. This study showed that half of the beaches in question did not have the handicapped parking places. The parking space was also so narrow that it was difficult for handicapped people to access the parking lot with their vehicles. There were also 3 beaches which did not have the toilet for the disabled. Even the beaches which have the toilet for the disabled, the size of entrance door and floor space was so narrow and there were a lot of physical obstacles such as no handles for the disabled people that it was really hard for the disabled people in wheelchair to use them.

Understanding Smartphone-based Online Shopping Experiences and Behaviors of Blind Users

  • Park, Jihyuk;Han, Yeji;Oh, Uran
    • International journal of advanced smart convergence
    • /
    • 제9권3호
    • /
    • pp.260-271
    • /
    • 2020
  • Smartphones provide blind users with screenreader as an accessibility tool. However, blind users often experience difficulties accessing online shopping malls via smartphones due to their inconsistent and image-based layouts. To enable screenreader users to get access to the detailed information about products while they are shopping online, we have developed BarrierFreeShop, an accessible mobile shopping application for people with visual impairments. BarrierFreeShop has three accessibility features: (1) layout automation, (2) review summarization, and (3) optical character recognition. We conducted a user study with 80 participants with visual impairments where they were asked to use BarrierFreeShop for a month. The findings revealed the effectiveness of our app in terms of speed and post interview feedback. We have also discovered typical shopping experiences that participants had during the test. This research suggests that computer vision technologies can improve accessibility issues in online shopping malls. In addition, we have confirmed that extracting contents from images help people with visual impairments to get better access to product information.

숲길에서의 Barrier-Free 인증제도 개발에 관한 연구 (Development of Certification Program for Barrier-Free in Forest Trail)

  • 권형근;최윤호;김명준;염인환;이준우
    • 농업과학연구
    • /
    • 제37권1호
    • /
    • pp.37-43
    • /
    • 2010
  • This study carried out to develop barrier-free certification program in forest trail. It is done to provide the certification system presented about certification organized, certification standard and indexes, evaluation method and operation plan. In order to develop certification program in forest trail, detailed measurement index must be developed earlier based on an accessbility, a stability, a preservation and a walking continuity. The suitable forest trail for weak pedestrian was investigated that running slope should be 1/20(5%) maximum, cross slope cannot exceed 1/50(2%) maximum and clear tread width should be above of minimum 90cm. In addition, the trail type is designed as a mixed trail system which is a combination of the loop and the line form and its distance should be 225~675m. Finally, forest trail should be manage sustainably by having regular monitoring and evaluation.

장애물 없는 생활환경 인증 사례를 통한 매개시설 평가항목 분석 (A Study on the Medium Facilities in Barrier-Free Certification Evaluation Items)

  • 이규일;김인순
    • 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
    • /
    • 제18권2호
    • /
    • pp.33-43
    • /
    • 2012
  • This study purposes to present the improvement on the index by analyzing concretely the certification and evaluation index and the actual certification acquisition focusing on the buildings acquiring the barrier-free (BF) certification. So, after analyzing the screening results of the buildings acquiring the BF certification and then grasping the general application level based on the above analysis, this study tries to present the improvement on the BF certification index by analyzing the detailed applications of the BF certification-acquired buildings and then grasping the problems on the evaluation index of the current certification system. It was analyzed that the items which applied the BF construction method generalized to the common buildings through the Act on the Promotion of Convenience in medium facilities and the items with higher distribution points were shown as high in terms of points and the acquired point level of items which influenced by the shape and condition of side and land to defile the appearance of buildings were low.

여객시설의 장애물 없는 생활환경 인증제도 적용현황과 지표개선 방향성 연구 - 법규비교 및 실태조사를 통하여 (A Study For Problems and Current Status Of Standards About Authentication Of A Barrier-Free Living Environment (Passenger Facilities) - Through Related Laws Comparison and Investigation)

  • 류상오;김인순;안성준
    • 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
    • /
    • 제24권4호
    • /
    • pp.37-45
    • /
    • 2018
  • Purpose: The purpose of this study is to suggest directions for improving Authentication Of A Barrier-Free Living Environment(BF) of passenger facilities. Methods: We examined the parts (terms, Authentications, and dimensions) where the difference in the legal standards between the relevant items in the "ACT ON GUARANTEE OF PROMOTION OF CONVENIENCE OF PERSONS WITH DISABILITIES, THE AGED, PREGNANT WOMEN, ETC." and the "ACT ON PROMOTION OF THE TRANSPORTATION CONVENIENCE OF MOBILITY DISADVANTAGED PERSONS", which are the basis of Authentication of BF for buildings and passenger facilities. We also mention the differences by comparing and analyzing Authentications of BF. In addition, we survey the current status of passenger facilities in Korea that have been granted and not granted Authentication of BF of passenger facilities. and we describe improvement directions of Authentications of BF. Implications: Improvement of Authentications of BF should be made in accordance with relevant laws, and improvement of Authentications of BF to reflect various situations in the field is needed. Authentications of BF according to the type of passenger facilities should be distinguished.

학교건축의 유니버설디자인 적용에 관한 연구 (A Study on Application of Universal Design in School Building)

  • 성기창
    • 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
    • /
    • 제24권4호
    • /
    • pp.59-67
    • /
    • 2018
  • Purpose: The concept of the Barrier-Free Design has steadily expanded into a basic principle of design, which can provide safe and convenient lives not only limited to the disables, elders, and pregnant women, but also to all members of the society. This is what we now know as the Universal Design. In other words, Barrier-Free Design for all is Architectural Approach of Universal Design. Thus, as a future-oriented alternative to school facilities according to social change, this study suggests basic direction of school building planning and concept of universal design considering school facilities characteristics. Methods: The characteristics of school facilities are understood from the perspective of Universal Design. In addition, a survey is conducted to identify the current state of school facilities. Result: Findings from this study are as follows. First, Universal Design of School Building is an integrated characteristic. Integration is intended to create and manage an integrated environment instead of an individual and one-time approach to installation and maintenance of convenience facilities. Second, It is a flexible characteristic to be sustainable. In other words, they aim to be selectable to respond to change. Third, It is a characteristic of accumulation of outstanding cases. This means that not only individual schools but also entire school spaces will be applied to Universal Design to form a virtuous circle of environment improvement. Implications: The results of this study may serve as a basic concept in the design of school buildings.

용사 열차폐 코팅층의 두께가 열응력에 미치는 영향 (A Study on the Effects of the Thickness of Top Coat on the Thermal Stresses of a Sprayed Thermal Barrier Coating)

  • 김형남;양승한
    • 대한용접접합학회:학술대회논문집
    • /
    • 대한용접접합학회 2004년도 춘계 학술발표대회 개요집
    • /
    • pp.223-225
    • /
    • 2004
  • Based on the principle of complementary energy an analytical method is developed for determining thermal stress distribution in an thermal barrier coating. This method gives the stress distributions which satisfy the stress-free boundary conditions at the edge. Numerical examples are given in order to verify the method and to investigate the thickness effects of the ZrO$_2$-8wt%Y$_2$O$_3$ top coat on the integrity of thermal barrier coating consisted of IN738LC substrate and MCrAlY bond coat.

  • PDF

Guided bone regeneration

  • Kim, Young-Kyun;Ku, Jeong-Kui
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • 제46권5호
    • /
    • pp.361-366
    • /
    • 2020
  • Guided bone regeneration (GBR) is a surgical procedure that utilizes bone grafts with barrier membranes to reconstruct small defects around dental implants. This procedure is commonly deployed on dehiscence or fenestration defects ≥2 mm, and mixing with autogenous bone is recommended on larger defects. Tension-free primary closure is a critical factor to prevent wound dehiscence, which is critical cause of GBR failure. A barrier membrane should be rigidly fixed without mobility. If the barrier is exposed, closed monitoring should be utilized to prevent secondary infection.