자폐성장애아동 어머니의 행동치료에 대한 인식

조성우,이미숙 공주대학교 특수교육연구소 2019 특수교육논집 Vol.24 No.1

본 연구는 자폐성장애아동 어머니가 행동치료에 대해 어떠한 인식을 가지고 있는지를 살펴보고자 하였다. 본 연구는 행동치료를 받고 있는 어머니들과의 면담을 통하여 행동치료를 알게 된 경위, 치료를 선택한 이유, 치료에 대한 기대 등을 살펴보았다. 본 연구는 행동치료를 받고 있는 자폐성장애아동 어머니 4명을 대상으로 면담을 진행하였으며, 연구결과는 다음과 같다. 첫째, 행동치료는 다른 치료 방법에 비해 활성화 되어있지 않아서 신뢰할 수 있는 정보가 부족하다고 하였다. 둘째, 행동치료는 가정과의 연계나 다른 치료 기관에서 제공되는 치료방법과의 협력과 연계가 부족한 실정인 것으로 나타났다. 셋째, 연구 참여자들은 현재 받고 있는 행동치료의 횟수보다 더 많이 행동치료를 받고자 하는 마음이 있었으며, 기회만 된다면 앞으로도 계속 행동치료를 받을 마음이 있다고 하였다. 마지막으로, 연구 참여자들은 행동치료를 받을 수 있는 기관이 제한적이라고 생각하고 언제 어디에서든 필요한 경우에 행동치료를 받을 수 있는 환경이 마련되기를 기대하고 있었다. This study investigated the perception of mothers of children with autism spectrum disorders on a behavior therapy. The study looked over the process of knowing a behavior therapy, reasons of selecting a behavior therapy, and the expectations toward the therapy through the interviews. The study interviewed 4 mothers of children with autism spectrum disorders, and the results of the study were as follows. First, there were not enough information regarding behavior therapy due to lack of utility. Second, there were not enough connections with home or therapeutic facilities. Third, the mothers would like to participate in the behavior therapies, and they wanted to remain to attend the therapies. Finally, the mothers anticipated to have more therapeutic facilities to be able to attend anywhere and anytime.

2P-202 The investigation of reflectance on the various silicon wires with high aspect ratio fabricated by electrochemical etching

조성우,장환수,박지연,김기희 한국공업화학회 2017 한국공업화학회 연구논문 초록집 Vol.2017 No.1

The nano- and micro-structures of silicon surfaces, known as black silicon, is a promising approach to eliminate surface reflection in photovoltaic devices without a conventional anti-reflection layer. This might lead to both increase in efficiency and reduction in the manufacturing costs of solar cells. The various silicon wires with high aspect ratio is fabricated by varying electrochemical etching conditions and depositing ZnO using atomic layer deposition (ALD) technique. The reflectance on the various silicon wires is investigated a range of visible light wavelength (from 300 to 800nm). As a result, we have observed the change of the reflectance with the shape of silicon wires, and fabricated the silicon wires with the reflectance of 10% below from 300 to 800nm wavelength. Additionally the micro-structures of silicon surfaces is fabricated at a low cost and simple process, and contributed to improvement of solar cell efficiency.

1P-563 A Bio-Hybrid Actuator Integrated with 3D Aligned Skeletal Muscle cell

조성우,신성규,김희진,정재현 한국공업화학회 2017 한국공업화학회 연구논문 초록집 Vol.2017 No.1

In this study, the integrated cell-based bio-actuator was fabricated using a 3D printer and subsequently filling the cell-matrix composed of live cells and biomaterials. Cardiac cells driven biological actuator does not show a reaction to stimuli and controlled movement, whereas skeletal muscle cell driven biological actuator is favorable to use. Also, geometric design was optimized for stress-induced 3D alignment of differentiated skeletal muscle cell. Next, electrical stimulation triggered contraction of engineered skeletal muscle cell and movement of the integrated cell-based actuator. Specifically, this cell-based bioactuator system was able to be developed as an integrated cellular machine for a broad array of Bio-Micro-Electro-Mechanical Systems by a modular assembly.

Conductive Hydrogel Extracellular Matrix Integrated with Functional poly(amino acid)s

조성우,정혜원,신성규,정재현 한국공업화학회 2018 한국공업화학회 연구논문 초록집 Vol.2018 No.1

A Cell-Based Bio-Hybrid Actuator for Bio-MEMS Application

조성우,신성규,이기흥,김희진,정재현 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.1

In this study, the integrated cell-based bio-actuator was fabricated by DLP 3D printer and subsequently filling the cell-matrix composed of Collagen, Matrigel and Myoblasts. Also, geometric design was optimized for stress-induced 3D alignment of differentiated myotubes. Next, electrical stimulation triggered contraction of engineered myotubes and movement of the integrated cell-based actuator. This cell-based bio-actuator system could be further developed as an integrated cellular machine, specifically, for a broad array of Bio-Micro-Electro-Mechanical Systems

Myotube-based bio-actuator working by self-folding assembly

조성우,김희진,신성규,이기흥,오승주,정재현 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.0

Significant progress in developing cell-based biohybrid actuators has increasingly been studied. In this study, the integrated myotube-based bio-actuator was fabricated by DLP 3D printer and subsequently filling the cell-matrix composed of Collagen, Matrigel and Myoblasts. In parallel, we prepared a hydrogel actuator consisting of two different layers with significantly different stiffness and capacities to uptake water in response of the environments. Next, electrical stimulation triggered contraction of cells in the muscle band and movement of the integrated cell-based actuator. This cell-based bioactuator system could be further developed as a integrated cellular machines and systems to provide drug screening, programmable tissue engineering, biomimetic machine design and micro-scale actuators and microfluidic flow control. We believe that the integrated bioactive system developed in this study will be highly useful for a broad array of Organ-on-a-chip such as valves.

광릉긴나무좀, 왕녹나무좀, 노랑애나무좀 성충에 대한 포스핀의 훈증활성

조성우,김성일,김현경,김길하,Cho, Sung Woo,Kim, Sung Il,Kim, Hyun Kyung,Kim, Gil-Hah 한국응용곤충학회 2019 한국응용곤충학회지 Vol.58 No.1

Many forest pests have caused problems for wood quarantine. The fumigation activity of phosphine ($PH_3$) was examined for the adults of three wood-boring insect pests. The $LCT_{99}$ values for Platypus koryoensis, Cryphalus fulvus, and Xyleborus mutilates were 3.192, 0.994, and $0.501mg{\cdot}h/L$ at $20^{\circ}C$, respectively. The effectiveness of $PH_3$ was increasingly time dependent for all doses tested in all three species. In particular, P. koryoensis showed 100% mortality at doses higher than 0.4 mg/L 7 days after fumigation. These results indicate that methyl bromide could be substituted for $PH_3$ for adults of these three species of wood pest.

An Integrative View on Cyber Threat to Global Supply Chain Management Systems

조성우,박명섭 한국무역학회 2011 Journal of Korea trade Vol.15 No.3

Companies have been rushing to introduce supply chain management (SCM)systems for effective SCM and other benefits. However, there are a number of cyber threats in SCM systems. The main purpose of this study is to define the concept of cyber threat, examine general types of cyber threats, identify possible cyber threats to the supply chain, and suggest practical solutions. All procedures are based on a review of the available literature. The most common cyber threats to SCM systems are explored in this study: inference attacks, password sniffing/cracking software, spoofing attacks, denial of service attacks (DoS), and direct attacks. Until now, many enterprises have typically placed more emphasis on aspects of different technologies. Companies should concentrate on the development of innovative security technologies and investment in human resources such as standardized screening/employment processes, continuous education systems, efficient reward systems, and autonomous communication channels about security issues. In order to deal effectively with these procedures for improving organization security, the role of senior management in both the organization and government agencies is essential.

Regenerated Cellulose Fibre Reinforced Casein Films: Effect of Plasticizer and Fibres on the Film Properties

조성우,Mikael Skrifvars,Kumar Hemanathan,Pirabasenan Mahimaisenan,Kayode Adekunle 한국고분자학회 2014 Macromolecular Research Vol.22 No.7

The idea of using man-made cellulosic fibres as reinforcement for casein films in this study was inspiredby their well defined fibre diameter and availability in large quantity, eventually leading to a homogeneous highquality composite at low cost. The casein biofilms were fabricated by solution casting from an aqueous alkaline solutionof the bovine milk protein casein in the presence of glycerol as a plasticizer, and the fibre-reinforced biocompositeswere prepared by the addition of regenerated cellulose fibre to the casein casting solution with variousamounts of glycerol. The effects of glycerol content and cellulose fibre reinforcements on the mechanical, thermaland physiological properties were characterized. The results showed that increasing glycerol content decreased thefilm strength, Young’s modulus and thermal stability with a gradual increase in the elongation. However, the tensileproperties were noticeably improved when reinforced with cellulose fibre. The composite with 20 wt% glycerol and20 wt% cellulose fibre showed the maximum tensile strength of 23.5 MPa and Young’s modulus of 1.5 GPa. Thecorresponding values for the composite with 30 wt% glycerol and the same fibre content were 15.1 MPa and 0.9 GPa, whichwere 2.3- and 3.2-fold higher compared to 30 wt% glycerol plasticized film. The thermal analysis revealed that theglass transition temperature and the thermal stability were decreased when the glycerol content was increased. Additionof cellulose fibres increased the glass transition temperature as well as the thermal stability. The gel electrophoresis(SDS-PAGE) analysis indicated that there was no significant decrease in the molecular weight of the caseinprotein during sample preparation. Scanning electron microscopy showed that the obtained composites with lowglycerol content had adequate interfacial bonding, and Fourier transform IR spectroscopy confirmed the formationof molecular interactions between the cellulose fibres and the casein.

냉방 부하 절감을 위한 지하피트의 활용에 관한 연구

조성우,박민용,최정민,이경희,임영빈 대한건축학회지회연합회 2005 대한건축학회지회연합회 학술발표대회논문집 Vol.1 No.1

The purpose of this study is to predict outlet temperature and humidity through underground pit for the reduction of cooling load and heating load. Commonly, the underground temperature is lower than outdoor in summer but the reverse happens in winter. The outlet air temperature through underground pit which is 3m-depth and 150m-length is 24.9℃ when outdoor air temperature 32.8℃ in summer. In winter, when the outdoor air temperature is -7℃, outlet air temperature through underground pit with 3m-depth and 150m-length is 6.9℃. ………………………………………………………………………………………………………………………………… : 지하피트, 출구온도, 지열,