고형배지의 종류가 수경재배 멜론의 품종별 과실의 생육과 품질에 미치는 영향

전하준,황진규,김인규,손미자 대구대학교 생명과학연구소 2004 생명과학연구 Vol.3 No.1

In order to examine how growth substances influence to fruit growth and its quality, we cultivated 3 different kinds of melons which grown in hydroponic system into 3 different types of growth substances, such as perlite, perlite/rock wool and rock wool/perlite. In this experiment, “Siroi Kagayaki”, showed no significant difference in fruit weight and its diameter in any of growth substances, but higher in plant height in perlite/rock wool than Perlite. In case of “TS-1806”, there were no significant differences in soluble solids, fruit weight and diameter in all the substances. However, it showed longer in fruit length in rock wool / perlite than that in perlite/ rock wool. In addition, the soluble solids in placenta and flesh were higher in perlite than those in rock wool/perlite.

32-bit 임베디드 시스템을 이용한 자동변속기용 전자제어시스템의 Software-in-the-loop simulation

장인규(In-Gyu Jang),서인근(Inkeun Seo),전재욱(Jaewook Jeon),황성호(Sung-Ho Hwang) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-

Drivers are becoming more fatigued and uncomfortable as traffic densities increase, which can lead to slower reaction time, They then face the danger of traffic accidents due to an inability to cope with frequent shifting, To reduce this risk some drivers prefer automatic transmissions (AT) to manual transmissions (MT), The AT is superior drivability and less shifting shock than the MT, so the market-share of AT is increasing, The AT is controlled by Electronic Control Unit (ECU) to obtain better shifting performance, The Transmission Control Unit (TCU) is a product of higher-value-added, so the companies which have advanced technology (BOSCH, SIEMENS VDO, DELPHI, and etc.) tend to evade technology transfer. As the number of ECU used on a car is increasing gradually (for example, engine management unit, transmission control unit, brake control unit, and powertrain control unit), TCU's performance is expected to be faster and more efficient for organic communication and arithmetic processing between the control systems than the performance of 16bit controller. In this paper, the model of automatic transmission vehicle using MATLAB/Simulink is developed for the hardware in-the-loop simulation with an embedded system. The AT control logic developed is loaded to 32-bit Embedded system platform developed on the basis of Freescale's MPC565, and we execute the Software-in-the-loop simulation (SILS) of AT based on Real Time Operating System (RTOS). These test results show that the developed embedded system can be used as AT control unit.

고려시대 유생의 서재(書齋)와 그 문화

황인규 한국교육사학회 2006 한국교육사학 Vol.28 No.2

This study aims to trace the history of culture of Confucians at study room(書齋) in Koryo Dynasty. Confucians were fond of reading books at study room during Koryo Dynasty. Because only a few manuscripts and documents related to the buddhist history have been left, I have had much difficulty in tracing the true history about the readings at that time. Thus, the limits on these documents were, to me, a great hindrance to understand the true history of buddhism itself. Scholars following Confucianism(儒生) were supposed to read at home or the reading house. This tradition were established from Choichiwon(崔致遠)'s reading house during Shilla kingdom. The reading house was called Dokseodang(讀書堂) of Haeinsa(海印寺). The tradition had been continued until Koryo dynasty. Kwakyeo(郭輿) 's Yangjijae(養志齋) started at one study room during Koryo dynasty. The number of study rooms were rising steadily during later Koryo Dynasty. study rooms has been brought to my attention and a reading club like Haedonggirohae(海東耆老會) at Chiodang(崔讜)'s study room was remarkable. From this perspective, I propose that Confucian study room functions as not only reading house, but also, first and most, the place of cultural interchange with the Buddhist Monks in study room. In conclusion, I argue that these trends were originated from the dominant Buddhists reflecting the society and culture at that time.

자동변속기용 임베디드 시스템 성능 시험을 위한 Hardware-in-the-Loop 시뮬레이터 구축

장인규(In-Gyu Jang),서인근(Inkeun Seo),전재욱(Jaewook Jeon),황성호(Sung-Ho Hwang) 제어로봇시스템학회 2008 제어·로봇·시스템학회 논문지 Vol.14 No.3

Drivers are becoming more fatigued and uncomfortable with increase in traffic density, and this condition can lead to slower reaction time. Consequently, they may face the danger of traffic accidents due to their inability to cope with frequent gear shifting. To reduce this risk, some drivers prefer automatic transmission (AT) over manual transmission (MT). The AT offers more superior drivability and less shifting shock than the MT; therefore, the AT market share has been increasing. The AT is controlled by an electronic control unit (ECU), which provides better shifting performance. The transmission control unit (TCU) is a higher-value-added product, so the companies that have advanced technologies end to evade technology transfer. With more cars gradually using the ECU, the TCU is expected to be faster and more efficient for organic communication and arithmetic processing between the control systems than the l6-bit controller. In this paper, the model of an automatic transmission vehicle using MATLAB/Simulink is developed for the Hardware in-the-Loop (HIL) simulation with a 32-bit embedded system, and also the AT control logic for shifting is developed by using MATLAB/Simulink. The developed AT control logic, transformed automatically by real time workshop toolbox, is loaded to a 32-bit embedded system platform based on Freescale"s MPC565. With both vehicle model and 32-bit embedded system platform, we make the HIL simulation system and HIL simulation of AT based on real time operating system (RTOS) is performed. According to the simulation results, the developed HIL simulator will be used for the performance test of embedded system for AT with low cost and effort.

Alloy 600 MA 의 입계응력부식균열에 대한 구리의 영향

박인규,황일순 ( In Gyu Park,Il Soon Hwang ) 한국부식방식학회 1996 Corrosion Science and Technology Vol.25 No.1

다발성 뇌경색을 동반한 Streptococcus agalactiae에 의한 감염심내막염 2예

박진용,최수녕,김현옥,정용근,황진용,김종우,배인규 대한감염학회 2006 감염과 화학요법 Vol.38 No.5

최근 기저질환을 가진 나이 많은 성인에서의 침습성 S.agalactiae 감염증의 보고가 늘어나고 있다. S. agalactiae감염심내막염은 비교적 드물지만 중증의 감염증으로 전신적 색전증과 광범위한 판막파괴로 인한 심부전이 잘 동반되므로 판막치환수술이 필요한 경우가 많다. 저자들은 기저질환으로 당뇨병과 알코올 중독이 있는 환자에서 발생한 S. agalactiae 감염심내막염 2예를 경험하였기에 드문 증례로 생각되어 문헌고찰과 함께 보고하는 바이다. The higher incidence of Streptococcus agalactiae infection in the newborns and pregnant women had been well recognized. The incidence of invasive S. agalactiae infection was recently increasing in both elderly adults and those with comorbid conditions such as diabetes mellitus, liver cirrhosis, malignancy, and abnormalities in immune responses. We report our experience with two diabetic middle-aged men who suffered from S.agalactiae infective endocarditis. Case 1) A 58-year-old man with diabetes mellitus and chronic alcoholism presented with fever and both lower legs weakness. An echocardiography showed two vegetations on the mitral valve. S. agalactiae was identified from blood cultures. He was treated with penicillin G and gentamicin, and he underwent mitral valve replacement surgery because of persistent fever and newly developed brain infarcts. One month later, an amputation of the left lower leg was performed for the embolic gangrene of left lower leg. Case 2) A 57-year-old diabetic man was admitted to our hospital because of fever and left shoulder pain. He had received the incision and drainage to treat left shoulder joint septic arthritis, but he had a continuous fever. On 5th day of admission, culture of pus from the left shoulder joint revealed S. agalactiae. An echocardiography showed a vegetation on the posterior mitral leaflet. He was treated with penicillin G and gentamicin. On 18th day of admission, a mitral valve replacement surgery was performed. He was discharged without recurrence.

노인병원의 재원환자 1인당 일평균 원가 및 적정이윤 계산

황인경,김재선,최황규 한국병원경영학회 2003 병원경영학회지 Vol.8 No.4

It has been asserted that per diem payment system should be introduced, in place of the current fee-for-service system, for payment of the inpatient services of the geriatric hospitals, Based on the assentation, this study aims at calculating costs and profits per inpatient-day of the geriatric hospitals, and thereby at contributing to the managerial improvement from the both sides of the Government and the hospitals. Relevant data of the three months, May to August, 2002 were collected from the five geriatric hospitals, and per inpatient-day costs and profits were calculated for the three disease groups. Major results and conclusions are as follow : Firstly, total costs per insured inpatient-day of the geriatric hospitals are 65,389 won for dementia (including optimal profit of 3,838 won), 69,730 won for stroke (including optimal profit of 4,117 won), and 70,085 won for other diseases (including optimal profit of 4,134 won). Secondly, the amount of the non-insured costs per inpatient-day occupies 34.5% of the total costs for dementia, 30.3% for stroke, and 30.1% for other diseases. Thirdly, the total amount of the per inpatient-day costs calculated including the optimal profits is, on the average, higher by 12% than the present price level calculated for the current fee-for-service system. This implies that the present price level should rise by 12% when the current fee-for-service payment system be maintained, and Finally, introduction of a sliding-scale payment system should be considered for the inpatient medical management fees for the length of stay over six months or more that are being cut in the claim examination process by the insurance corporation.

The Effect of Intervention for Improving Colonoscopy Quality Is Associated with the Personality Traits of Endoscopists

Choi Hyun Ho,Sung Soo-Yoon,Lee Bo-In,Cho Hyun,Jung Yunho,Park Jae Myung,Cho Young-Seok,Lee Kang Moon,Kim Sang Woo,Choi Hwang,Chae Hiun-Suk,Choi Myung-Gyu 거트앤리버 소화기연관학회협의회 2024 Gut and Liver Vol.18 No.2

Background/Aims: This study investigated whether the personality traits of endoscopists are associated with the effect of interventions for the improvement of colonoscopy quality. Methods: This prospective, multicenter, single-blind study was performed with 13 endoscopists in three health screening centers over a 12-month period. Quality indicators (QIs), including adenoma detection rate (ADR), polyp detection rate (PDR), and withdrawal time, were measured every 3 months. Consecutive interventions for the improvement of colonoscopy quality were conducted every 3 months, which included the personal notification of QIs, the in-group notification of QIs, and finally a targeted “quality education” session. The personality traits of each endoscopist were evaluated for perfectionism, fear of negative evaluation, and cognitive flexibility after the last QI assessment. Results: A total of 4,095 colonoscopies were evaluated to measure the QIs of the individual endoscopists for 12 months. The mean ADR, PDR, and withdrawal time of the 13 endoscopists were 32.3%, 47.7%, and 394 seconds at baseline and increased to 39.0%, 55.1%, and 430 seconds by the end of the study (p=0.003, p=0.006, and p=0.004, respectively). Among the three interventions, only quality education significantly improved QIs: ADR, 36.0% to 39.0% (odds ratio, 1.28; 95% confidence interval, 1.01 to 1.63). The improvement of ADR and PDR by education was significantly associated with perfectionism (r=0.617, p=0.033 and r=0.635, p=0.027, respectively) and fear of negative evaluation (r=0.704, p=0.011 and r=0.761, p=0.004, respectively). Conclusions: Education can improve colonoscopy quality, and its effect size is associated with an endoscopist’s personal traits such as perfectionism and fear of negative evaluation (Clinical- Trials.gov Registry NCT03796169).

A Multicenter Cohort Study for the Evaluation of Tenofovir- Based Combination Therapy for Multi-Drug Resistant Chronic Hepatitis B: Real-Life Data

( Hyung Joon Yim ),( Sang Jun Suh ),( Young Kul Jung ),( Seong Gyu Hwang ),( Hana Park ),( Yeon Seok Seo ),( Soon Ho Um ),( Sae Hwan Lee ),( Young Seok Kim ),( Jae Young Jang ),( In Hee Kim ),( Hyoung 대한간학회 2017 춘·추계 학술대회 (KASL) Vol.2017 No.1

Aims: Management of multidrug resistant (MDR) chronic hepatitis B (CHB) is still challenging. Although current guidelines recommend tenofovir (TDF) or TDF+entecavir (ETV) for MDR CHB, real-life data comparing various combinations based TDF and TDF+ETV are lacking. Herein, we report a multicenter cohort study for the evaluation of TDF-based therapy for MDR CHB. Methods: The inclusion criteria were CHB patients with resistance to more than 2 nucleos(t)ide analogues and hepatitis B virus (HBV) DNA level over 200 IU/mL (or 1000 copies/mL). Patients with decompensated cirrhosis or hepatocellular carcinoma were excluded. Primary end point was virologic response (VR) defined by undetectable HBV DNA at month 12. Secondary endpoints were VR at month 24 and 36. Results: A total of 230 patients were enrolled. Mean age of patients were 49 years and 77.4 % were male. Mean baseline HBV DNA level was 4.1 log IU/mL. 78 patients (34.0%) were resistant to L-nucleoside analogues (L-NA) and ADV. 75 patients (32.6%) were resistant to L-NA and ETV, and 67 patients (29.2%) were resistant to both ADV and ETV in addition to L-NA. Initial treatments for MDR CHB were TDF+ETV 1 mg (165, 71.7 %), TDF+ETV 0.5 mg (7, 3.0 %), TDF+lamivudine (9, 3.9 %), TDF+telbivudine (1, 0.4 %), and TDF monotherapy (34, 14.8 %). Virologic response rates of the whole cohort at month 12, month 24, and month 36 were 75.3%, 83.4 %, and 88.2 %, respectively. When we compared the virologic response rate in-between TDF+ETV 1 mg group, other combination group, and TDF monotherapy group, there was no difference among the groups (74.0 %, 83.3 %, and 76.9 %, respectively, P = 0.770) at month 12. TDF monotherapy was not inferior to any combination therapies. Result of data analysis at month 24 (82.7 %, 83.3 %, and 88.9 %, respectively, P = 0.920) and month 36 (89.0 %, 88.9 %, and 87.5 %, respectively, P = 0.592) showed the same trends. Conclusions: TDF based therapy was effective for the treatment of MDR CHB. The efficacy of TDF monotherapy did not differ from the TDF based combination therapies.

高麗後期 敎宗僧의 中國遊歷과 佛敎界의 動向

黃仁奎(Hwang In-Gyu) 한국불교연구원 2007 불교연구 Vol.27 No.-

  The purpose of the study aim to analyze the activities and achievements of buddhist priests in China in the period of late Koryo dynasty. But limits of these documents were so distinctive that the understanding about true history of them were very difficult. Fortunately, records concerning them could be found on China"s documents, which supports existence of them. In this study I had tried to illuminate their life in China and seeking after historical truth of buddhism. Definitely, this study aim to explain activities and achievements of the main branch of Buddhism in China in the period of late Koryo dynasty.<BR>  Firstly, Yuga"ca"ra(瑜伽宗)"s priests didn"t flourished during the millitary government-period of Koryo dynasty and had shared some of basic features of chinese buddhism. But at the situation of chinese Budddhism under the dominaion of the Yu"an(元) dynasty, following reqests by the mongol court, many Buddhist monks were sent to the capital Tadu(大都) in order to copy entire sets the Sutras, in which priests of Koryo dynasty particularly had well versed. Taking this opportunity, two Yuga"ca"ra"s priests became national Preceptor(國尊) during the period of mongol influence by the controll of the religion affairs of the whole country. For example, the high priest of Yuga"ca"ra appointed Hyeyoung(惠永), Meesoo(彌授) as national Preceptor(國尊) and Hyewon(海圓) acted as high priest in mongol empire.<BR>  Secondly, Hua-yen school(華嚴宗)"s priests also didn"t flourished during the millitary government-period and shared some of basic features of chinese buddhism. I investigated Hua-yen school Priest(華嚴宗僧侶), for example, Cheonhee(千熙), Wooun(友雲) as well as Dalhwan(達幻), Jeongjo(晶照), Joongjo(中向), Yarhan(若蘭), Hyewol(慧月) etc. who had acted in China under the domination of Y‘an dynasty. they were gone to China and seeked truth of Budddhism or took some of buddhist services.<BR>  Cheonhee(千熙) studied in China under the domination of Y‘an dynasty for two years. He was recommended Chunhee(千熙) who belonged to Hua-yen school buddhist sect(華嚴宗) as national Preceptor(國師). He accepted reverence from chinese buddhists when he went to China(the Y"an Dynasty). In the same manner, Chunhee(千熙) had to purify the religious buddhism. After he was appointed to Hua-yen school(華嚴宗) as national Preceptor(國師), Wooun(友雲) studied also in China at that time. they decided to reform their buddhist doctrines which is needed for new times.<BR>  Thirdly, the T"ien-t"ai School(天台宗)"s priests were unfolded buddhist movement of Baekryen-temple(白蓮社) during the millitary government-period(武臣執權期). Cheonchaek(天?) were interchanged between Koryo Buddhist and china Buddhist.<BR>  Under the regime of Y‘an dynasty, King Chungryol(忠烈王) founded Myoryensa(妙蓮寺) in Gaekyong(開京), he appointed Baekryeonsa"s priests into Myoryensa"s master priests. Euisun(義璇), who was one of the relative priests of famous aristocrat clan Cho-ingyu(趙仁規), changed Baekryonsa"s traditional, buddhist and philosophical spirit to aristocrat-oriented buddhism.<BR>  This trend appeared in Heeam(熙菴) and he studied also in China. And Dalmok(達牧) was established buddhist service in China. It was interpreted that they wanted the renovation of Buddhism in the period of late Koryo dynasty.