특수교사가 인식하는 자폐범주성장애 아동의 식행동 및 식품기호도와 영양교육 요구도

최수진,오지은,김유리,김유리,Choi, Su Jin,Oh, Ji Eun,Kim, Yu-Ri,Kim, Yuri 한국식생활문화학회 2021 韓國食生活文化學會誌 Vol.36 No.1

The purpose of this study was to provide basic information on the development of nutrition education programs to improve the mealtime behavior of children with autism spectrum disorder (ASD) by investigating the mealtime behavior and food preferences of children with ASD through the perception of special education teachers. Surveys were given to 108 special education teachers in special education schools in Korea regarding the demographic characteristics, nutrition education support needs, mealtime behavior, and food preferences of children with ASD. Most of the special education teachers responded that nutrition education in special schools had not been conducted properly and nutrition education for ASD children is necessary. Mealtime behavior analysis classified the behavior into three clusters: cluster 1, 'less problematic mealtime behavior'; cluster 2, 'general feature of autism'; cluster 3, 'difficulty in self-directed diet'. The age, eating habits, and food preferences were different according to each mealtime behavior cluster. Therefore, it will be necessary to develop a nutrition education program based on the characteristics of mealtime behavior.

SCV 가솔린 엔진의 운전조건에 따른 희박연소 특성

최수진,전충환,장영준,Choi, Su-Jin,Jeon, Chung-Hwan,Chang, Young-June 대한기계학회 2000 大韓機械學會論文集B Vol.24 No.2

Lean combustion in a SI engine is one of the best solution for the improvement of fuel economy and reduction of pollutant emission. In order to access a lean combustion engine, stable combustion at lean AlF ratio is needed. In this paper, the effect of fuel injection timing on lean misfire limit has been investigated in an MPI engine. To investigate the interaction of injection timing and intake flow characteristics, three different swirl generating SCV(swirl control valve) configurations were considered, and investigated their effects on lean misfire limit and torque at full load operation. Also the effects of spark timing on lean combustion has been investigated. Lean combustion has been examined and the results are reported in this paper. SCV B has been developed to satisfy the requirements of sufficient swirl generation to improve lean combustion and stable performance. It is found that injection timing, spark timing and intake air motion govern the stable lean combustion.

달 궤도 진입 목표값 변화에 따른 궤도요소 변화 연구

최수진,김인규,문상만,민승용,류동영,Choi, Su-Jin,Kim, In-Kyu,Moon, Sang-Man,Min, SeungYong,Rew, Dong-Young 항공우주시스템공학회 2015 항공우주시스템공학회지 Vol.9 No.4

Korea Aerospace Research Institute(here after KARI) has a plan to launch experimental lunar orbiter in 2018, and lunar orbiter and lander in 2020. There are several ways to go to the moon. Which one is direct transfer trajectory and another one is phasing loop transfer trajectory and the other one is WSB trajectory. Regardless of the transfer trajectories, LOI maneuver is the most important maneuver of all mission sequences because if this burn is failed, it is too difficult to get into the lunar orbit in the future. This paper describes first LOI target value of foreign lunar orbiters and analyzes orbital variations of experimental lunar orbiter according to various target values. By analyzing the variation of orbiter parameter after first LOI, proper orbital period for LOI target value are recommended to meet the inclination, apoapsis and periapsis altitude constraints.

생쥐 난자의 효율적인 냉동보존 방법 확립을 위한 연구

최수진,김수경,김지선,조재원,전진현,변혜경,Choi, Su-Jin,Kim, Soo-Kyung,Kim, Ji-Sun,Cho, Jae-Won,Jun, Jin-Hyun,Byun, Hye-Kyung 대한생식의학회 2004 Clinical and Experimental Reproductive Medicine Vol.31 No.1

Objective: The purpose of this study was to evaluate the efficacy and effect of various cryopreservation method on the survival and the cytoskeletal stability of metaphase II mouse oocyte. Methods: Mouse ovulated oocytes were collected and cryopreserved by a modified slow-freezing method with 1.5 M 1, 2-propanediol (PrOH)+0.1 M sucrose or by vitrification using cryo loop and EM grid with 40% ethylene glycol+0.6 M sucrose. Four hours after thawing, intact oocytes were fixed and stained with fluorescein isothiocyanate (FITC)-conjugated monoclonal anti-$\beta$-tubulin antibody to visualize spindle and propidium iodide (PI) to visualize chromosome. Spindle morphology was classified as follows: normal (barrel-shaped), slightly and absolute abnormal (multipolar or absent). Results: Survival rate of the frozen-thawed oocytes in vitrification group was significantly higher than that of slow-freezing group (62.7% vs. 24.4%, p<0.01). Vitrification with cryo loop showed significantly higher survival rate than that with EM grid (67.7% vs. 53.5%, p<0.05). On the other hand, proportion of normal spindle and chromosome configurations of the frozen-thawed oocytes between two vitrification group was not significantly different. Conclusion: For mouse ovulated oocytes, vitrification with cryo loop may be a preferable procedure compared to slow-freezing method. Further study should be needed to investigate developmental competency of frozen-thawed mouse oocytes.

Efficacy of Frozen-Thawed ET in Patients with Old Age or Non-Pregnant in Fresh ET Cycles

최수진,이선희,송인옥,궁미경,강인수,전진현,Choi, Su Jin,Lee, Sun Hee,Song, In Ok,Koong, Mi Kyoung,Kang, Inn Soo,Jun, Jin Hyun The Korean Society for Reproductive Medicine 2006 Clinical and Experimental Reproductive Medicine Vol.33 No.4

목 적: 동결-융해 배아이식은 보조생식술에서 환자들에게 보다 많은 임신의 기회를 제공해줄 수 있는 방법으로 이용되고 있다. 본 연구에서는 예후가 좋지 않은 환자들에서 동결-융해 배아이식의 효용성을 알아보고자 하였다. 연구방법: 나이가 많은 고령 환자군 (38~44세)과 신선주기 배아이식에서 임신 실패군을 연구대상으로 하였다. 과배란 유도를 통해 채취한 난자를 일반적인 체외수정 또는 세포질내 정자주입술을 시행하여 수정을 유도하고, 잉여의 전핵 또는 난할 시기의 배아를 완만동결법으로 동결하였다. 동결보관 배아는 급속융해법으로 융해하여 호르몬요법을 시행한 환자의 자궁에 이식하였다. 신선 배아이식과 동결-융해 배아이식 과정에서의 배아 상태, 임신율, 착상률 등을 통계적인 방법으로 분석하였다. 결 과: 나이가 많은 고령군에서 신선 배아이식을 시행한 환자들과 동결-융해 배아이식을 시행한 환자들의 평균 연령은 $40.0{\pm}1.8$세 (n=206)와 $39.9{\pm}1.9$세 (n=69)로 통계적으로 유의한 차이가 없었으나, 임상적인 임신율과 착상률은 동결-융해 배아이식에서 29.0%와 11.2%로 신선 배아이식의 16.5%와 7.0%에 비해 통계적으로 유의하게 높게 나타났다. (p<0.05). 첫 번째 신선 배아이식에서 임신 실패군의 연속되는 신선 배아이식 환자군 ($31.2{\pm}2.3$, n=40)과 동결-융해 배아이식 환자군 ($31.9{\pm}3.1$, n=119)에서의 평균 연령은 차이가 없었으며, 임상적 임신율 (42.5% vs 40.3%)과 착상률 (22.6% vs 18.8%)도 유사하였다. 결 론: 본 연구에서는 동결-융해 배아이식이 고령 환자들에서 효과적으로 임신율과 착상률을 높일 수 있음을 보여주고 있다. 이러한 결과는 과배란 유도에 따른 자궁의 착상 환경 변화가 고령 환자들에서 임신율과 착상률을 저하시키는 것과 관련이 있을 것으로 생각된다. Objective: The aim of this study was to evaluate the efficacy of frozen-thawed ET in poor prognosis patients such as the old age (38~44 years; OA group) and the patients who did not achieve clinical pregnancy with the first fresh ET cycle (non-pregnant patients; NP group). Methods: Laboratory and clinical data were collected from fresh and frozen-thawed ET cycles of OA and NP group. Controlled ovarian hyperstimulation (COH) and conventional insemination or ICSI, in vitro culture and ET were performed by routine procedures. Supernumerary embryos were frozen by the slow freezing method, and frozen embryos were thawed by the rapid thawing method. Embryo development, pregnancy and implantation rates were statistically analyzed by Student t-test and chi square test Results: Mean ages were similar between fresh ET ($40.0{\pm}1.8$ years, n=206) and frozen-thawed ET ($39.9{\pm}1.9$ years, n=69) cycles in OA group. However, the clinical pregnancy and implantation rate of subsequent frozen-thawed ET significantly higher than those of fresh ET cycles (29.0% and 11.2% vs. 16.5% and 7.0%, p<0.05). In NP group, there was no difference in the mean age between fresh ET ($31.2{\pm}2.3$ years, n=40) and frozen-thawed ET ($31.9{\pm}3.1$ years, n=119) in subsequent cycles. The clinical pregnancy and implantation rates were similar between the subsequent fresh ET (42.5% and 22.6%) and the frozen-thawed ET (40.3% and 18.8%). Conclusion: In old age patients, higher pregnancy rate of frozen-thawed ET compared to fresh ET cycles in this study. It may be related that better uterine environments for implantation in frozen-thawed ET cycles than that of non-physiological hormonal condition in uterus of fresh COH cycles.

유동 강화형 밸브의 형상에 따른 정상 유동 특성

최수진,류기현,전충환,장영준,Choi, Su-Jin,Ryoo, Ki-Hyun,Jeon, Chung-Hwan,Chang, Young-June 대한기계학회 1999 大韓機械學會論文集B Vol.23 No.2

The flow characteristics of 2-valve and 4-valve cylinder heads with various blocked-valve were experimentally investigated in a steady flow rig. Effects of the blocked-valve configurations on flow coefficient, swirl and tumble intensity are studied. Compared to the conventional valve, the blocked valve in both cylinder heads have the much lower flow coefficient and the much higher intensity of swirl and tumble. Under the same size of blockage, the value of flow coefficient and swirl(or tumble) intensity were varied according to the position of blockage. Throughout these steady flow test the optimized positions of blockage in both cylinder heads were determined.

신문기사에 나타난 디자인의 의미

최수진(Choi Su-Jin),이주명(Rhi Joo-Myung) 한국디자인학회 2003 한국디자인학회 학술발표대회 논문집 Vol.- No.-

2차원 스피커 환경에서 최적 Sweet Spot을 제공하는 스피커 구동 알고리즘

최수진(Choi, Su-Jin),부정용(Boo, Jeong-Yong),김기준(Kim, Ki-Jun),박호종(Park, Ho-chong) 한국방송·미디어공학회 2015 한국방송공학회 학술발표대회 논문집 Vol.2015 No.11

Effects of Working Memory Treatment using Verb-Carrier Phrases on Language Processing in Persons with Mild Cognitive Impairment

최수진(Su Jin Choi),성지은(Jee Eun Sung),정지향(Jee Hyang Jeong),김건하(Geon Ha Kim) 한국언어청각임상학회 2016 Communication Sciences and Disorders Vol.21 No.3

배경 및 목적: 경도인지장애군은 작업기억과 언어 능력의 저하를 나타내고, 언어처리과정에 결함을 보인다. 본 연구에서는 경도인지장애군을 대상으로 동사 운반구를 활용한 작업기억중재를 실시하고 언어처리과정에 미치는 효과를 살펴보았다. 방법: 본 연구는 8명의 경도인지장애군을 대상으로, 주 2회 60분씩, 총 12회기의 중재가 실시되었다. 중재 전·후 문장 따라말하기, 문장이해, 작업기억, 생성이름대기 수행력을 비교하기 위하여 사전·사후 평가를 실시하였다. 중재에 사용된 중재법은 새롭게 고안된 방법으로 의미를 가진 동사를 이용하여 운반구(carrier phrase)를 구성하고, 이를 활용하여 작업기억 폭을 향상시키는 작업기억중재를 실시하였다. 결과: 문장 따라말하기 과제와 문장이해과제에서 통계적으로 유의한 향상을 보였다. 작업기억 과제 중 중재 단어 폭, 비중재 단어 폭 바로 따라하기, 시공간폭 거꾸로 따라하기 과제에서 수행력 향상을 나타냈다. 생성이름대기 수행력 평가를 위한 중재 의미 유창성 과제, 비중재 의미 유창성 과제 및 동사 유창성 과제에서 유의한 향상을 보였다. 논의 및 결론: 동사 운반구를 이용한 작업기억중재는 경도인지장애군의 문장 따라말하기 및 비중재 문장이해력의 향상이라는 일반화 효과를 가져왔다. 비중재 작업기억 향상으로의 전이 효과를 나타냈으며, 중재 및 비중재 명사와 동사의 생성이름대기능력 향상이라는 일반화 효과를 가져왔다. 즉, 중재하지 않은 인지 및 언어 영역의 네트워크를 활성화시켜 경도인지장애군의 언어처리과정에 긍정적인 효과를 가져왔다. Objectives: The purpose of the study was to investigate the effects of working memory (WM) treatment using verb-carrier phrases on language processing for individuals with mild cognitive impairment (MCI). Methods: A total of eight individuals with MCI participated in this study. The WM treatment consisted of 12 sessions, twice a week for an hour per day. WM treatment protocol employed verb-carrier phrases to enhance WM span by manipulating semantic span and syntactic complexity at the sentence-level. The treatment protocol consisted of 10 steps: step 1, forward word span repetition; step 2, target sentence repetition; step 3, phrase repetition after chunking sentences; step 4, answering wh-questions; step 5, word recognition; step 6, verb-noun matching; step 7, sentence construction using verb-carrier phrases; step 8, recalling word span-forward; step 9, recalling word span-backward; and step 10, target sentence construction. Results: Pre-post comparisons using Wilcoxon signed-ranks tests revealed that there were significant increases in performance on target sentence repetition and word span with treated words. The treatment effects were generalized on the word span forward and visuospatial span backward tasks using untreated items. Treatment effects were additionally generalized onto sentence comprehension and generative naming abilities. Conclusion: The current study suggests that WM treatment using verb-carrier phrases is effective in enhancing the sentence repetition ability, sentence comprehension, WM span and generative naming abilities in people with MCI.

소형발사체를 이용한 태양-지구 라그랑주 점 임무설계

최수진(Su-Jin Choi),Mike Loucks,Tiffany Finley,이기주(Keejoo Lee) 한국항공우주학회 2023 한국항공우주학회 학술발표회 논문집 Vol.2023 No.4