The purpose of this study is to provide basic data for the production of jackets with high fit by comparing and analyzing the adhesive and non-adhesive production methods of men's jackets. An analysis of the manufacturing method showcased differences between the adhesive and non-adhesive manufacturing methods in the cutting and wick attachment method, the shape and attachment method of the chest reinforcing wick, the sleeve attachment method, and the shoulder pad and sleeve reinforcing cloth attachment method. In evaluating the outfit, the overall fit of the shoulder, the fit of the chest, and the fit of the armpit were found to be high in the non-adhesive production method. In evaluating appearance evaluation, the front shoulder, chest, and sleeve overall appearance showed a high non-adhesive production method. Therefore, in order to increase the wearability of the shoulder pad and the the attachment method of the upper sleeve reinforcing cloth, the non-adhesive production method should be used, and in order to increase the overall wearability and armpit wear of the chest, the difference in the attachment method, and the reinforcement method of the armhole should be used. In addition, to increase the appearance of the jacket, non-adhesive production methods such as differences in wick attachment methods, shoulder pads, sleeve reinforcing cloth, and sleeve attachment methods should be used.

Liquified hydrogen is considered a new energy resource to replace conventional fossil fuels due to environmental regulations by the IMO. When building tank for the storage and transportation of liquified hydrogen, materials need to withstand temperatures of -253°C, which is even lower than that of LNG (-163°C). Austenitic stainless steel mainly used to build liquified hydrogen tank. When building the tanks, both the base material and welding zone need to have excellent strength in cryogenic condition, however, manual arc welding has several issues due to prolonged exposure of the base material to high temperatures. Laser welding, which has some benefits like short period of exposure time and decrease of thermal affected zone, is used many industries. In this study, laser bead on plate welding was conducted to determine the laser butt welding conditions for STS 304 and STS 316L steels. After the BOP test, cross-section observations were conducted to measure and compare four bead parameters. These tendency result of laser BOP test can be used as conditions laser butt welding of STS 304 and STS 316L steel.

This research aims to investigate Park Kilyong’s architectural theory and critique of Gyeongseong (Seoul) buildings, expressed in his ‘Overview of Modern Buildings in Gyeongseong’ and ‘Critique of Gyeongseong Buildings’ (Samcheolli, Sept. and Oct. 1935); and ‘Architectural Form of the 100% Function’ and ‘The Modern and Architecture (1)-(4)’ (Dong-A Daily, 28 Jul. to 1 Aug. 1936). As a result, it is confirmed that Park had the functionalist theory of modern architecture, which suggests that Korean architects of the Japanese colonial period were accommodating the contemporary trend of world architecture. However, Park shows his fundamental limitations in the fact that the main content of his articles was a verbatim translation of two Japanese references (Kurata, 1927; Ishihara, 1929) without proper indications. Despite the limitations, his texts are still meaningful since he formed his own architectural theory on the basis of what he translated; and indeed his critique of Gyeongseong buildings, however simple, was based on the theory. This research makes a critical analysis of Park’s functionalist theory from both the 1930s’ and present points of view and compares his commentaries on Gyeongseong architecture with those by Ko Yu-seop (1932) and Hong Yunsick (1937), illustrating how Korea perceived architecture and modernism in 1930s.

본 연구는 1890년대부터 1930년대까지 한국 선교 현장에서 전도부인 들이 직면했지만 밝혀지지 않은 일상의 어려움을 밝혀내어, 토착 교회의 자립을 도모하는 개신교 선교정책인 네비어스 방법(Nevius Methods)의 포괄적인 이해를 목표로 한다. 통상적으로 지배적인 학계의 시점이 전도부 인들의 수고와 업적을 인정하는 것과는 달리, 본 연구는 전도부인들이 겪은 역경이 토착 교회의 자립을 장려했던 네비어스 방법과 밀접하게 연관되어 있음을 주장한다. 네비어스 방법은 토착 교회가 자립하도록 토착 교회가 스스로 토착 교회 사역자를 세우고 생활비를 부담해야 된다고 주장했다. 이 선교정책은 선교사들에게 한국 교회가 빠르게 성장하는 핵심 으로 여겨지고 있었지만 교회가 재정적인 어려움에 직면하게 될 때 교회 계층의 가장 낮은 위치에 있는 전도부인들이 종종 불리한 처우를 받게 되었다. 본 연구는 1차 원자료에 의존하여, 전도부인들의 경험을 철저하게 조사함으로써 토착 교회의 빠른 성장에 대한 선교사들의 열망과 가난한 선교현장의 혹독한 현실과의 격차에 대해 다룬다.

As the decommissioning of domestic nuclear power plants (Gori Unit 1 and Wolseong Unit 1) becomes more visible, many research projects are being conducted to safely and economically decommissioning of domestic nuclear power plants (NPPs). After permanent shutdown, decommissioning of NNPs proceeds through decontamination, cutting of main equipment, waste disposal and site restoration stages. And various technologies are applied at each stage. In particular, remote cutting of neutron induced structures (RV, RVI, etc.) is a technology used in developed countries in the cutting stage, and remote cutting has been evaluated as a core technology for minimizing workers’ radiation exposure. Generally, remote cutting technologies are divided into mechanical/thermal/electrical cutting. Among various thermal cutting technologies, plasma arc cutting (PAC) is more economical and easily to remote control than other cutting technologies, and is also effective in cutting STS304 plates. PAC is a thermal cutting technology that melts the base material at the cutting area with a plasma arc heat source and removes melted material by blowing it out with cutting gas. The cutting quality depends on the stand-off distance and power (current), material thickness, cutting speed, etc., while double arcing will occur if the cutting conditions are not suitable. A monitoring system that can confirm double arcing during remote cutting is necessary because double arcing can reduce cutting quality, increase secondary waste (increase kerf and aerosol), and cause non-cutting. In this study, we used an ultrahigh-speed camera equipped with a band-pass filter to capture clear arc shapes, and measured voltage waveforms with a data acquisition system. We studied a monitoring method that can confirm the occurrence of double arcing by synchronizing the obtained arc shape and voltage waveform, and the effects of double arcing on the STS304 plates. The results of this study are expected to be helpful in the development of the remote cutting process using plasma arc cutting when decommissioning of domestic NPPs.

The decommissioning of nuclear power plants will generate a lot of low and intermediate-level radioactive waste (LILW), and preliminary radioactive evaluation for these wastes should be carried out before decommissioning work. Mainly, Concrete, Carbon Steel, Stainless Steel-304 (SS304) and Inconel are used in many parts of nuclear power plants and considered as main resource of nuclear wastes. Depending on the material location, the number of neutrons irradiated to material varies, which can range from self-disposal waste to LILW. In this paper, activation analysis was performed to compare the radiation dose according to the presence or absence of impurity elements present in SS304. For the calculation, SS304 composition and impurity elements were used as described in the report of NUREG-3474. This report lists 41 impurity elements for SS304 and other materials. Calculation code is used ORIGEN-S module in SCALE 6.1 code. Neutron flux is used as arbitrary value that around 1E+11 level and irradiation time is set as 30 year with 10-year cooling time. In the ORIGEN-S calculation, 1g of SS304 is used for easy calculation of specific activity. The ORIGEN-S calculation results are as follows. All impurity elements contained case calculated 9.32E+07 Bq activity. In the absence of all impurity elements case and most cases shows that total Becquerel value after 10-year cooling time around 9.11E+07 Bq, and Co impurity case had larger result. The calculation was performed again by increasing the amount of impurity substances by 100 times to perform the sensitivity evaluation more reliably. Representatively, Li, N, Co, and Ba impurity elements cases were calculated to have a particularly high Becquerel. Especially Co impurity element case, a total Becquerel of 3.03E+08 was calculated. Accordingly, evaluation of impurities mixed in SS304 must be considered, and in particular, the inclusion rate for Co must be considered.

This study initiated research aligned with the body positivity movement, aiming to explore size diversity for groups facing relative size discrimination due to their deviation from average body types. Using KS adult women's apparel dimensions as a reference, jackets were developed for women in their 20s to 30s who belong to the small petite-size (S[P]) category, which is characterized by a height under 155cm (petite) and a bust-circumference from 72cm to less than 82cm (small). Using 3D virtual-fitting, we conducted experiment-pattern production and refinement and subsequent real-fitting evaluations by participants to objectively validate aesthetics and comfort. The study’s findings are as follows: First, utilizing a 3D virtual-fitting program by identifying ‘creases’ and ‘garment pressure points’ in the jacket appearance, experiment patterns were refined and real jackets were produced. This approach addressed challenges in recruiting participants with specific body types and allowed for efficient research in terms of cost and time. Second, through real-fitting evaluations, basic-fit and slim-fit jackets labeled as <79-88-150> were developed for the S(P) size. we presented ‘size spec’ and ‘ease allowance’ for jackets by waist fit. Both fits received positive evaluations with approximately 53.5cm sleeve length, and 11.7cm shoulder length. The ease allowances for the basic-fit jacket were approximately 9.2cm at the bust circumference, 12.8cm at the waist circumference, and 6cm at the hip circumference. Similarly, the slim-fit jacket exhibited ease allowances of about 4.8cm at the bust circumference, 4cm at the waist circumference, and 4cm at the hip circumference, receiving positive evaluations for aesthetics and comfort.

YSZ (Y2O3-stabilized zirconia)-based ceramics have excellent mechanical properties, such as high strength and wear resistance. In the application, YSZ is utilized in the bead mill, a fine-grinding process. YSZ-based parts, such as the rotor and pin, can be easily damaged by continuous application with high rpm in the bead mill process. In that case, adding WC particles improves the tribological and mechanical properties. YSZ-30 vol.% WC composite ceramics are manufactured via hot pressing under different pressures (10/30/60 MPa). The hot-pressed composite ceramics measure the physical properties, such as porosity and bulk density values. In addition, the phase formation of these composite ceramics is analyzed and discussed with those of physical properties. For the increased applied pressure of hot pressing, the tetragonality of YSZ and the crystallinity of WC are enhanced. The mechanical properties indicate an improved tendency with the increase in the applied pressure of hot pressing.

목적: 본 연구는 COVID-19의 대유행 동안 20~30대 성인을 대상으로 컴퓨터시각증후군 (CVS, computer vision syndrome) 관련 눈의 자각증상과 시력 관련 불편감을 파악하고, 눈 건강을 위해 사용하는 예방법을 알아보고자 하였다. 방법 : 2021년 12월부터 2022년 2월까지 안경 또는 콘택트렌즈 처방과 상담을 위해 일개 안경원에 내원 했던 20~30대 성인 중에서 전신질환 및 안질환, 안과적 수술 경험이 없는 150명을 대상으로 하였다. 연구도구는 대상자의 일반적인 특성(3문항), CVS 자각증상(16문항), 시력 관리(2문항), 눈의 조절기능 이상(2문항), 청색광 차단 안경사용(2문항), 근거리교정(1문항)으로 총 26문항으로 구성된 설문지를 이용하였다. 결과 : 전체 대상자들의 CVS 자각증상은 “눈물이 많이 발생한다”가 109명(72.7%)으로 가장 높은 빈도를 보였 고, 그다음은 “눈이 아프다”가 104명(69.3%)으로 나타났다. CVS 자각증상 중 시력 관련 자각증상은 “사물이 흐 려보인다”가 106명(70.7%)으로 가장 많았다. 시력 관리방법으로는 “시력의 저하를 느껴서”가 105명(70.0%)으로 가장 많았고, 청색광 차단 안경 사용하는 대상자는 150명(84.7%)으로 80% 이상의 대상자들이 기능을 넣어서 사 용하고 있다. 결론 : CVS 자각증상 16문항 중 14문항에서 50% 이상으로 나타났다. 청색광 차단 안경을 사용하지 않는 대상 자는 CVS 자각증상 중 시력과 관련된 “시력이 나빠지는 것 같다”가 69.6%로 가장 높게 나타났다. COVID-19 대 유행 동안 자각적인 불편증상과 시력저하를 호소하는 대상자가 높게 나타나고 있다. 따라서 안경처방 시 생활환 경, 사용시간 및 자각적 증상에 대하여 문진이 필요하다고 생각된다.

說文解字는 한자의 체계적인 자전으로서 최초라 할 수 있는데, 특히 部首를 개 발하고 적용하여 특정 글자의 검색을 쉽게 하였다는 점이 더욱 그러하다. 다만 음양 오행에 근거하여 설정한 540개라는 적지 않은 부수의 개수는 검색에 있어서 뜻밖의 불편함을 야기하였다. 이때 허신은 부수의 순서를 부수의 형체의 연결인 形相과 의 미에 연결인 義相을 이용하여 배열하였다. 이 논문은 이 계련의 形相과 義相을 분석 하고 검증하는 데 그 목적이 있다. 앞서 說文 ｢卷一｣의 14개 부수를 대상으로 ‘系 聯’을 고찰하였으며, 이번 논문은 說文 ｢卷二·上/下｣15小∼44冊의 30개 부수의 ‘系 聯’을 고찰하였다.

본 연구의 목적은 회복탄력성이 정보처리에 미치는 영향을 연구하기 위함이다. 본 연구에서는 남자 고등학생 39 명을 무작위로 추출한 다음 회복탄력성 척도(KRQ-53) 점수에 따라 상위집단(13명), 중간집단(13명), 하위집단(13명) 에 무선 할당하였다. 실험 과제는 단순반응시간, 선택반응시간-1, 그리고 선택반응시간-2 였다. 피험자가 과제를 실시 하는 동안 Fp1, Fp2, F3, F4, Fz, Cz, Pz, C3 영역에서 사상관련전위(ERP)를 측정하였다. 본 연구의 결과, 첫째 세타 파의 경우 중간집단이 상위 및 하위 집단보다 높게 나타났다. 둘째, 알파를 분석한 결과, 상위집단이 중간 및 하위집 단보다 알파파가 높게 나타났다. 셋째, 미드-베타파를 분석한 결과 하위 및 중간집단의 미드 베타파가 상위집단보다 높은 것으로 나타났다. 넷째, P300 진폭은 선택반응시간-1에서 회복탄력성 중간집단이 상위 및 하위집단보다 높게 나타났다. 본 연구의 결과는 회복탄력성 수준에 따라 정보처리가 다르게 나타난다는 것을 보여준다.