• 패션비즈니스
• /
• 제10권1호
• /
• pp.1-19
• /
• 2006

The purpose of this study is to investigate the social and cultural background of hand-knitting things with handcraft feeling which is appeared conspicuously after 2000. And to analyze the types and characteristics of hand-knit design. The resorts of this study is as follows: First, it is found that the pattern of stitch in their forms and ornament technique of handcraft feeling are the remarkable factors to decide the specific designs in the most of hand-knit designs. The major forms are plain stitch, rib stitch, cable stitch, lace stitch, relief stitch and pile stitch and the ornament techniques such as patch work, fringe, embroidery and collage are being widely used. Second, after 2000, due to peoples' preference for handcraft feeling manufactures, pursuit trend of artless luxury by retouch appeared, it made feeling for recurrence of the past and the warm humanity. In addition, the pro-eco trend using pro-environment materials and capturing the nature as images are on its way to advance. Through the mix & match of materials, details and items, it becomes possible to express many kinds of images. Thanks to those characteristics, the hand-knit designs are now acknowledged as luxurious with the couture sense attached and are shaking off their previous image of recycling.

• Asian Pacific Journal of Cancer Prevention
• /
• 제15권13호
• /
• pp.5427-5431
• /
• 2014

Aim: To evaluate the outcome of stapled versus sutured colo-rectal anastomosis after low anterior resection of mid-rectal carcinoma. Patients and Methods: A prospective study of fifty patients who underwent colo-rectal anastomosis following low anterior resection (LAR) of T2 mid-rectal cancers at the Egyptian National Cancer Institute during the time period from June 2010 to June 2013 was conducted. Classification was into two groups; a stapled anastomosis group I (25 patients) and a hand-sewn anastomosis group II (25 patients). All operations are evaluated regarding intra-operative complications such as anastomotic line bleeding, visceral injuries or major blood loss. The anastomotic time and operative time are documented for each operation. All patients are evaluated post-operatively for anastomotic leakage (AL), wound infection and ileus. Results: The distance of the tumor from the anal verge was $9.6{\pm}2.0cm$ in group I and $9.9{pm}2.4cm$ in group II. The mean operative time was $191.5{\pm}16.2min$ in the stapled group and $208{\pm}18.6min$ in the sutured group (p=0.002). The mean anastomotic times were $9.0{\pm}1.9min$ and $19.7{pm}12.2min$ (p=0.001). Anastomotic leakage developed in three (12.0%) patients in the stapled group and in four (16.0%) patients in the sutured group (p=1.000). Post-operative ileus was observed in 3 patients in group I and one patient in group II. Wound infection developed in three (12.0%) patients in the stapled group and four (16.0%) patients in the sutured group (p=1.000). Conclusion: Colo-rectal anastomosis after low anterior resection for mid rectal carcinoma can be conducted safely either by stapling or hand-sewn techniques; however the stapling technique showed shorter anastomotic and operative times with no significant advantages regarding intra- or post-operative complications or hospital stay.

• 전자공학회논문지CI
• /
• 제43권3호
• /
• pp.39-49
• /
• 2006

본 논문에서는 비전 기술에 기반을 둔 손 모양 인식 시스템의 성능 향상을 위하여 강화학습에 의한 손 모양 인식 방법을 제안한다. 비전 센서에 기반을 둔 손 모양 인식은 손의 높은 자유도로 인한 자체 겹침 (self-occlusion) 현상과 관찰 방향 변화에 따른 입력 영상의 다양함으로 인식에 어려움이 따른다. 따라서 비전 기반 손 모양 인식의 경우, 카메라와 손 간의 상대적인 각도에 제한을 두거나 여러 대의 카메라를 배치하는 것이 일반적이다. 그러나 카메라와 손 간의 상대적 각도에 제한을 두는 경우에는 사용자의 움직임에 제약이 따르게 되며, 여러 대의 카메라를 사용할 경우에도 각 입력된 영상에 대한 인식 결과를 최종 인식 결과에 반영하는 방식에 대하여 추가적인 고려를 해야 한다. 본 논문에서는 비전 기반 손 모양 인식의 이러한 문제점을 개선하기 위하여 인식 과정에서 사용되는 특징을 손 구조적인 각도 정보와 손 윤곽선 정보로 나누고 강화학습을 통하여 각 특징간의 연관성을 정의하는 방식을 제안한다. 또한 제안된 방법을 세 대의 카메라를 이용한 손 모양 인식 시스템에 적용하여 유용성을 검증한다.

• 한국응급구조학회지
• /
• 제24권1호
• /
• pp.77-84
• /
• 2020

Purpose: This study was conducted to determine effective chest compression methods that could be used when performing cardiopulmonary resuscitation in rocking boats. Methods: Tests were conducted for four minutes using manual and mechanical chest compressions on two mannequins, placed in boats, and moving at a speed of 35km/hours on calm sea surfaces with wave heights of 0.5m and wind speeds of 2-3m/s (testing for two minutes, followed by rest, then a second round of testing for two minutes). To compare the quality of the chest compressions, data were analyzed using mannequins (Resusci Anne Q-CPR, Laerdal, Norway) and then statistically processed. Results: When chest compressions were administered in the moving rescue boat, an accuracy analysis showed that the pressure speed of the hand and mechanical techniques were normal, h owever, the pressure depth accuracies were 49.04% for manual techniques and 0% for mechanical techniques. The relaxation accuracies during compressions were 2.07% for manual techniques and 95.4% for mechanical techniques. Conclusion: When administering chest compressions in rocking rescue boats, mechanical rather than manual techniques should be preferentially considered.

• 척추신경추나의학회지
• /
• 제8권2호
• /
• pp.57-66
• /
• 2013

Objectives : The present study examines indications and treatment techniques of Chuna manual therapy. Methods : We searched the clinical studies on Chuna manual therapy through 5 korean web databases, 2 journals.(key word 'chuna') After selecting appropriate clinical studies(Bongchuna, massage, side effect, contraindication are excepted), we analyzed them according to diseases, Chuna techniques, type of clinical trials. Results : 101 studies are selected and analyzed. They studied about cervical(26%), thoracic(12%), lumbar (29%)spinal disorders, temporomandibular joint disorders(4%), pelvic region disorders(4%), upper(6%), lower extremity(5%) disorders and other diseases(15%). Spinal disorders are studied frequently. Mild techniques like supine position both hand cervical spine flexion distraction, JS supine position cervical spine distraction, flexion distraction technique are used more frequently than adjustment by thrust. Conclusions : We have to enhance education and training about techniques that are frequently used and studied. Research and improvement of infrequently used techniques are needed. In-depth research about side effects and contraindication is needed. Highquality clinical research and systematic review should be needed to prove the therapeutic effect of Chuna treatment.

• Journal of Computing Science and Engineering
• /
• 제10권3호
• /
• pp.95-101
• /
• 2016

In this study, we propose a new system for constructing parallel corpora for sign languages, which are generally under-resourced in comparison to spoken languages. In order to achieve scalability and accessibility regarding data collection and corpus construction, our system utilizes deep learning-based techniques and predicts depth information to perform pose estimation on hand information obtainable from video recordings by a single RGB camera. These estimated poses are then transcribed into expressions in SignWriting. We evaluate the accuracy of hand tracking and hand pose estimation modules of our system quantitatively, using the American Sign Language Image Dataset and the American Sign Language Lexicon Video Dataset. The evaluation results show that our transcription system has a high potential to be successfully employed in constructing a sizable sign language corpus using various types of video resources.

• 제어로봇시스템학회논문지
• /
• 제13권5호
• /
• pp.467-473
• /
• 2007

In this paper, we present a position-based robot hand tracking scheme where a pan-tilt camera is controlled such that a robot hand is always shown in the center of an image frame. We calculate the rotation angles of a pan-tilt camera by transforming the coordinate systems. In order to identify the model parameters, we applied two optimization techniques: a nonlinear least square optimizer and a particle swarm optimizer. From the simulation results, it is shown that the considered parameter identification problem is characterized by a highly multimodal landscape; thus, a global optimization technique such as a particle swarm optimization could be a promising tool to identify the model parameters of a robot hand tracking system, whereas the nonlinear least square optimizer often failed to find an optimal solution even when the initial candidate solutions were selected close to the true optimum.

• 한국의류학회지
• /
• 제26권2호
• /
• pp.355-363
• /
• 2002

The purpose of this study was to investigate how the weave type, yarn twist fabric count and fiber content of the worsted fabrics affect the subjective sensation of the hand. Thirty worsted fabrics that were mainly used for the spring and fall ladies'suits at national brands were selected. Variables were such as four different kinds of weave types, plain, twill, satin and decorative; two levels of yarn twist, normal and high; various fabric counts; two different fiber contents, pure wool and Lycra contained. Image analysis and wavelet transform techniques were used to quantify the surface fiber, For surface characteristics, MIU, MMD and SMD were measured by KES-FB system. The Questionnaires with 23 adjectives were used for the subjective hand evaluation. Panels were So specialists of fashion or fabric designers and merchandizers. By Factor Analysis, six factors that represent the subjective hand were extracted. The relationship between these factors and structural variables were analyzed. Yarn twist was significantly related to the surface characteristics and resilience. Weave structure affected surface characteristics, volume/warm-cool feeling and resilience. Fabric counts showed relations with volume/warm-cool feeling and the fiber contents with volume/warm-cool feeling, resilience and elastic properties. MIU, MMD and SMD showed no relations with the surface fibers. Subjective sensation of surface characteristics was affected by SMD and surface fibers.

• Restorative Dentistry and Endodontics
• /
• 제17권2호
• /
• pp.399-412
• /
• 1992

The purpose of this study was to evaluate the root canal transportation and remaining dentin / cementum thickness after using hand and ultrasonic instrumentation in the curved mesial root canals of extracted human mandibular molars. Fourty - six clear polyether blocks were made and randomly divided into two groups: hand instrumentation group with K - Flex files and ultrasonic instrumentation group with Suprasson SP unit. All root canals were instrumented to a size corresponding to a # 30 K - Flex file 1mm short from the radiographic apex. The roots were then sectioned perpendicular to the long axis so the apical and middle third could be evaluated with the Zoom stereomicroscope. The results were as follows : 1. In the total amount of removed dentin at middle third level, there was not significant difference between the hand instrumentation and ultrasonic instrumentation (P>0.05). 2. In the total amount of removed dentin at apical third level, there was more removed by the ultrasonic instrumentation than hand instrumentation(P<0.005). 3. In the transportation width, there was not significant difference between the two groups at both sectioned levels(P>0.05). 4. It was suggested that the canal was transported distally at middle third level and mesially at apical third level by booth techniques.

• International Journal of Naval Architecture and Ocean Engineering
• /
• 제6권3호
• /
• pp.723-736
• /
• 2014

Glass Fiber Reinforced Plastic (GFRP) structures are primarily manufactured using hand lay-up or vacuum infusion techniques, which are cost-effective for the construction of marine vessels. This paper aims to investigate the mechanical properties and failure mechanisms of the hybrid GFRP composites, formed by applying the hand lay-up processed exterior and the vacuum infusion processed interior layups, providing benefits for structural performance and ease of manufacturing. The hybrid GFRP composites contain one, two, and three vacuum infusion processed layer sets with consistent sets of hand lay-up processed layers. Mechanical properties assessed in this study include tensile, compressive and in-plane shear properties. Hybrid composites with three sets of vacuum infusion layers showed the highest tensile mechanical properties while those with two sets had the highest mechanical properties in compression. The batch homogeneity, for the GFRP fabrication processes, is evaluated using the experimentally obtained mechanical properties.