2002년 기부횟수 자료의 재분석: 수정 및 보완

김병수,이주형,김인영,박수범,박태규,Kim, Byung Soo,Lee, Juhyung,Kim, Inyoung,Park, Su-Bum,Park, Tae-Kyu 한국통계학회 2014 응용통계연구 Vol.27 No.5

Kim 등 (2006)과 Kim 등 (2009)은 2002년에 (사)볼런티어 21에서 조사한 설문자료에 기초하여 우리나라 개인의 기부횟수에 영향을 주는 유의적 설명변수를 보고한 바 있다. 본고에서는 Kim 등 (2006)과 Kim 등 (2009)의 계산오류를 발견하여 이를 수정하고, 아울러 Kim 등 (2009)이 적용한 0이 팽창된 포아송 모형에 로지스틱 회귀모형을 추가하였다. 동 로지스틱 모형으로 기부행위(0, 1)에 영향을 주는 설명변수를 식별하고, 아울러 기부횟수가 작은 군(群)과 큰 군(群)을 판별하여 주는 설명변수를 식별하고자 한다. Kim et al. (2006) and Kim et al. (2009) reported a set of explanatory variables affecting donation frequency when they analyzed nationwide survey data on donations collected in 2002 by Volunteer 21, a nonprofit organization in Korea. The primary purpose of this paper is to correct computational errors found in Kim et al. (2006) and Kim et al. (2009), to rectify major results in the Tables and Figures and to supplement Kim et al. (2009) by providing new results. We add two logistic regressions to the ZIP and a mixture of two Poisson regressions of Kim et al. (2009). Through these two logistic regressions we could detect a set of explanatory variables affecting donation activity (0 or 1) and another set of explanatory variables, in which the volunteer (0, 1) variable is common, discriminating the infrequent donor group from the frequent donor group.

화학치료를 받는 암 환자 '삶의 질'의 변화에 관한 연구

김병수,최인근,박경화,윤소영,오상철,서재홍,최철원,신상원,김열홍,김준석,Kim, Byung-Soo,Choi, In-Keun,Park, Kyeung-Hwa,Yoon, So-Young,Oh, Sang-Chul,Seo, Jae-Hong,Choi, Chul-Won,Shin, Sang-Won,Kim, Yeul-Hong,Kim, Jun-Suk 한국호스피스완화의료학회 2001 한국호스피스.완화의료학회지 Vol.4 No.2

Purpose : It is very important to endow the cancer patients underwent chemotherapy with satisfactory quality of life (QOL). However, little is known about the factors influencing QOL during chemotherapy. Therefore, we designed this study to find out the factors influencing QOL in the cancer patients who underwent chemotherapy. Methods : Ninety-seven cancer patients were studied, prospectively. The patients' characteristics were as follows; median age(range): 48(19{\sim}83) years, male:female; 57:40, PS:0,1/2,3;55/42 patients, diagnosis(number): lymphoma (28), lung cancer (22), gastrointestinal cancer (18), sarcoma (12), breast cancer (12), gynecological cancer (5), Stage: I,II/III.IV;37/60 patients. We used EORTC QLQ-C30 questionnaires to evaluate QOL. EORTC QLQ-C30 scores were performed before the onset of chemotherapy and after the end of 3 cycles of chemotherapy. The correlation of these scores with performance status (PS), diagnosis, disease stage, response to chemotherapy, and regimen related toxicity was evaluated. Results : The responder group (CR, PR) demonstrated marked improvement of social functional and emotional scales to non-responder group (SD,PD) (P=0.024, 0.045). Non-hematologic regimen related toxicity such as mucositis, nausea and vomiting was significantly correlated with pain scale change (P=0.043). Other factors had no notable correlation with QOL changes. Conclusion : Our preliminary study results may suggest as follows. The response to chemotherapy is associated with the change of social functional and emotional scales and the severity of non-hematologic regimen related toxicity is associated with pain scale change.

Trapezoid mesa와 Half Sidewall Technique을 이용한 4H-SiC Trench MOS Barrier Schottky(TMBS) Rectifier

김병수,김광수,Kim, Byung-Soo,Kim, Kwang-Soo 한국전기전자학회 2013 전기전자학회논문지 Vol.17 No.4

본 논문에서는 전력반도체 소자의 재료로써 주목받고 있는 탄화규소 기반의 Trench MOS Barrier Schottky(TMBS)의 순방향 및 역방향 특성을 개선시키기 위한 구조를 제안한다. 순방향 전압강하와 역방향 항복전압을 개선시키기 위하여 사다리꼴 mesa 구조와 trench sidewall의 길이를 조절하는 기법을 사용하는 4H-SiC TMBS 정류기를 제안하고 있다. 제안된 구조는 사다리꼴 mesa 구조를 적용하여 trench sidewall에 경사를 줌으로써 1508V의 역방향 항복전압을 얻었다. 이것은 기존의 4H-SiC TMBS 정류기에 비하여 역방향 항복전압을 11% 개선시켰음을 나타낸다. 또한 trench sidewall 상단의 길이를 조절하여 순방향 전류 $200A/cm^2$에 대하여 12% 감소된 1.6V의 순방향 전압강하를 얻었다. 제안된 소자는 Silvaco사의 T-CAD를 사용하여 전기적 특성을 분석하였다. In this study, an 4H-SiC Trench MOS Barrier Schottky (TMBS) rectifier which utilizes the trapezoid mesa structure and the upper half of the trench sidewall is proposed to improve the forward voltage drop and reverse blocking voltage concurrently. The proposed 4H-SiC TMBS rectifier reduces the forward voltage drop by 12% compared to the conventional 4H-SiC TMBS rectifier with the tilted sidewall and improves the reverse blocking voltage by 11% with adjusting the length of the upper sidewall. The Silvaco T-CAD was used to analyze the electrical characteristics.

Ca 첨가가 PTCR 써미스터의 전기적 특성에 미치는 영향

김병수,김종택,김철수,김용혁,이덕출,Kim, Byung-Su,Kim, Jong-Taek,Kim, Chul-Soo,Kim, Yong-Huck,Lee, Duck-Chool 한국전기전자재료학회 1998 전기전자재료학회논문지 Vol.11 No.2

In this paper, to develop PTCR(Positive Temperature Coefficient of Resistance) thermistor with high withstanding voltage, Ca were added to. the compositions of $(Ba_{0.9165-X}-Sr_{0.08}-Ca_X-Y_{0.0035})TiO_3+MnO_2$ 0.02wt%+$SiO_2$ 0.5wt%. the effects of Ca additions were researched according the increasing of Ca from 0[mol%] to 20[mol%], and the electrical properties were investigated. As increasing Ca additions from 0[mol%] to 20[mol%], the grain size of the specimens was reduced from 11.1[${\mu}m$] to 6.15[${\mu}m$], and also the sintered density was reduced from 5.43[$g/cm^3$] to 5.05[$g/cm^3$] and their the breakdown voltages were increased from 163[V/mm] to 232[V/mm]. It is shown that the breakdown voltage was increased with amount of Ca additions.

Valuing Derivatives on the Stock Index Volatility in a General Equilibrium Framework

김병수,김인준,김동석 ( Byung Soo Kim,In Joon Kim,Tong Suk Kim ) 한국재무학회 1998 98년 춘계 학술발표 논문집 Vol.- No.-

도시광석(都市鑛石) 재자원화(再資源化)를 위한 건식공정(乾式工程)의 현황(現況)

김병수,이재천,신도연,정진기,이강인,손정수,양동효,김민석,김수경,Kim, Byung-Su,Lee, Jae-Chun,Shin, Do-Yeoun,Jeoung, Jin-Ki,Rhee, Kang-In,Sohn, Jeong-Soo,Yang, Dong-Hyo,Kim, Min-Seuk,Kim, Soo-Kyung 한국자원리싸이클링학회 2012 資源 리싸이클링 Vol.21 No.2

유한자원의 순환활용과 환경보전 관점에서 도시광석으로부터 산업원료로 재사용될 수 있는 금, 은, 팔라듐 및 구리, 주석, 니켈, 코발트, 리튬 등 유용금속의 회수는 매우 중요하다. 현재까지 도시광석으로부터 유용금속을 회수하기 위한 많은 공정이 개발되었으며, 그 중 일부는 상업적으로 가동되고 있다. 본 논문에서는 문헌을 통하여 조사된 도시광석으로부터 산업원료로 사용되는 유용금속을 재생하기 위하여 개발된 중요한 건식공정들을 간략히 소개하고자 한다. In the points of the environmental conservation and the recirculating utilization of limited resources, it is very important to recover valuable metals like Au, Ag, Pd, Cu, Sn, Ni, Co, and Li used as industrial raw materials from urban ores. From now, many processes have been developed for recovering the valuable metals contained in urban ores and some of them have been operated commercially. In the paper, pyrometallurgical processes developed for reclaiming valuable metals from urban ores will be briefly introduced.

악성 빈혈환자에서 발병한 위암 1예 보고

김병수,김종원,이인규,김동출,김우호,이혁준,양한광,Kim, Byung-Soo,Kim, Jong-Won,Lee, In-Kyu,Kim, Dong-Chul,Kim, Woo Ho,Lee, Hyuk-Joon,Yang, Han-Kwang 대한위암학회 2007 대한위암학회지 Vol.7 No.1

악성빈혈을 동반한 자가면역성 만성 위축성 위염은 위암의 전구 병변으로 알려져 있다. 저자들은 악성빈혈에 동반된 위암 1예를 경험하였기에 보고한다. 40세 여자환자가 어지럼증과 공복 시 속쓰림으로 시행한 혈액검사상 혈색소 4.2 g/dl으로 측정되었다. 상부위장관 내시경상에서는 위 고위 체부의 편평 융기성 병변이 관찰되었고 조직검사상 위선암으로 보고되었다. 위전절제술을 시행하였고 병리조직 검사상 병변은 고위 체부 전벽에 점막하층(SM2)까지 침범한 조기위암이었으며, 검사된 림프절 44개 중에 전이된 림프절은 없었다. 악성빈혈 환자에서 위축성 위염이 동반된 경우 위암의 호발연령이 되면 위암의 발생 가능성이 있으므로 상부위장관 내시경의 주기적인 시행이 중요하리라 생각된다. Increased risk of gastric cancer has been reported in patients with chronic atrophic gastritis that develops in conjunction with pernicious anemia. We report here a case of a gastric adenocarcinoma associated with pernicious anemia. A 40-year-old female patient had been diagnosed with anemia 6 years earlier at a local hospital. One month ago, she visited our hospital for aggravated dizziness and newly developed epigastric soreness. Her blood hemoglobin level was 4.2 g/dl, and a gastroscopic work-up for anemia discovered a 2.5-cm-sized, slightly elevated mucosal lesion at the anterior wall of the high body in the stomach. The biopsy of this lesion revealed a moderately-differentiated adenocarcinoma. She underwent a total gastrectomy with a Roux en Y esophagojejunostomy with D2 lymph node dissection. The final stage of the gastric carcinoma was identified as T1N0M0. Based on this experience, we recommend that a follow-up gastroscopy be performed in patients with pernicious anemia with atrophic gastritis because of the increased risk of gastric cancer in patients with pernicious anemia.

고추 역병과 그 유전적 방제

김병수,Kim, Byung-Soo 경북대학교 농업과학기술연구소 2014 慶北大農學誌 Vol.32 No.3

고추 역병은 그 병원균의 토양전염성 때문에 약제에 의한 방제효과가 낮아 저항성 품종의 개발이 기대되어 왔다. 고추 역병에는 CM334, AC2258, PI201234 등 다수의 저항성 유전자원이 보고되었으며, 이들의 저항성의 유전에 관한 연구로 진행되었다. 그러나 저항성의 유전양식은 실험에 사용한 재료와 연구자에 따라 1개, 2개, 혹은 3개 이상의 유전자, 다수의 유전자에 의한 양적 유전 등 다양하였다. 최근에는 분자적 방법으로 양적형질유전자좌(QTL)를 구명하는 연구가 보고되고 있으며, 분자표지를 이용한 선발 기술도 이미 육종 현장에서 활용되고 있다. 최근 저항성 품종이 다수 출시됨에 따라 새로운 병원형(pathotype), 즉, 레이스(race)의 출현에 관심이 높아지면서 이에 대한 연구가 보고되고 있다. 모두 품종과 병원균주간에 특이적 변이가 있으며, 이를 토대로 몇 개의 병원형(race)으로 분류할 수 있었다. 그러나 판별품종이 통일되지 않았고 시험에 사용한 품종들의 저항성 유전자의 조성도 달라 세계적으로 통일된 레이스분류체계는 아직 없는 실정이다. 이러한 배경에서 보다 안정된 저항성 품종의 육성을 위해서는 한 가지 저항성 재료보다는 다수의 저항성 유전자원에서 저항성을 도입하고, 육성과정에 육성품종의 보급 대상지역의 여러 균주를 사용하여 선발하는 것이 필요할 것이다. Phytophthora blight caused by Phytophthora capsici Leonian is a dangerous disease threatening pepper growers worldwide. The efficacy of chemical control is generally low as the pathogen is soil-borne and rapidly spread by zoospores during the rainy season. Thus, based on the demand for resistant varieties, various good resistant sources, such as CM334, AC2258, and PI201234, have been reported and their inheritance of resistance studied by many different authorities. However, the mode of inheritance remains unclear, as 1 or 2 independent dominant genes, 3 genes, or multiple genes have all been reported as responsible for resistance. Recently, QTL mappings of the gene factors for resistance have been reported, and molecular markers for resistance used in breeding programs. With the release of many resistant commercial hybrid cultivars, differentiation of pathotypes of the pathogen is attracting interest among breeders and plant pathologists. Various authorities have already classified the pathogen strains into different races according to the inter-action between resistant host plants, including the source of resistance, such as CM334 and PI201234, and resistant commercial varieties and P. capsici isolates. However, no standard differential host sets have yet been established, so the results are good only for the pathogen strains used in the experiments. Thus, for breeding varieties with durable resist-ance, it is important to introduce resistance from different sources and use diverse local pathogen strains collected in the target area for distribution in a breeding program.

체외 충격파를 이용한 만성 근위부 족저 근막염의 치료

김병수,이근배,최진,박유복,백룡빈,Kim, Byung-Soo,Lee, Keun-Bae,Choi, Jin,Park, Yu-Bok,Baik, Long-Bin 대한족부족관절학회 2006 대한족부족관절학회지 Vol.10 No.2

Purpose: To evaluate the results of extracorporeal shock wave therapy (ESWT) for patients with chronic proximal plantar fascitis. Materials and Methods: Between April 2005 and April 2006, 35 cases (24 patients) who were followed more than 6 months were evaluated. By $EvoTron^{(R)}$, 2 sessions of ESWT (Group 1: 1200 and Group 2: 1500 shock waves / session of $0.12\;mJ/mm^2$) were performed at 2 weeks interval. The mean age was 40.0 (range, 15-59) years. 13 patients were male and 11 patients were female. Visual analogue scale (VAS) on daily activity and a 100-point scoring system including 70 points for pain and 30 points for function were used. The clinical outcomes were rated as follows: excellent, no pain on daily activity; good, less than 50% of previous VAS; fair, 50-75% of previous VAS; or poor, more than 75% of previous VAS. Excellent and good were graded as satisfactory results. We compare clinical results between groups and evaluate the relationships between clinical results and duration of symptom, fascial thickening and previous steroid injection were evaluated. Results: Overall satisfactory rate were 71.4%. There was no significant difference of clinical results between groups. And there were no significant difference between clinical results and duration of symtom, preoperative fascial thickening and previous steroid injection. Conclusions: ESWT for recalcitrant chronic proximal plantar fascitis is useful treatment method with high patient satisfaction and pain relief, but more long-term study must be needed.

사각형 노치에 대한 램파의 다중 모드 반사와 투과 계수 해석

김병수,노용래,Kim, Byung-Soo,Roh, Yong-Rae 한국음향학회 2008 韓國音響學會誌 Vol.27 No.3

본 논문의 목적은 탄성판 내에서 진행하는 기본형 램파 모드인 $S_0,\;A_0$ 모드가 사각형 노치에 의해 산란되었을 때, 노치의 2차원 형상에 따른 각 파의 반사계수와 투과계수를 구하는데 있다. 먼저 노치가 있는 부분의 평판의 두께 변화에 따라 노치 부위에 발생 가능한 램파모드의 변화를 고찰하고, 노치 부위의 경계면 형상과 노치 내부에서 진행하는 입사파의 방향에 따라, 노치에 의한 전체 산란 현상을 3가지의 독립된 산란 프로세스로 구분하였다. 그리고 각 프로세스의 경계면에 자유 경계조건과 연속조건을 적용하여 각 프로세스에서 발생된 산란파의 투과 및 반사 계수를 구하였다. 나아가 중첩의 원리를 이용하여 각 프로세스의 산란파를 모드별로 합산하고, 사각형 노치의 폭과 깊이의 변화에 따른 입력파의 에너지 플럭스의 합과 반사 및 투과파의 에너지 플럭스의 합의 차이가 최대 4%에 들도록 하는 정상상태에서의 반사 및 투과계수를 구하고 분석하였다. The purpose of the present work is to derive the reflection and transmission coefficients of $S_0\;and\;A_0$ mode Lamb waves in relation to the geometry of a rectangular notch when the waves propagate across the notch in an elastic plate. Firstly, the excitable modes of the Lamb wave were analyzed with respect to the plate thickness. The scattering phenomena were divided into three independent processes according to the boundary shape of the notch and the direction of the wave propagation. Linear equations for each process were derived with corresponding free or continuous boundary conditions to analyze the scattered waves. By the rule of linear superposition, the waves scattered at each process were summed for each mode. Then the steady-state reflection and transmission coefficients of the scattered waves were determined so that the difference of energy flux between the incident and the scattered waves would remain within 4%.