http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
인간/시스템안전분야 : 식당 조리직 작업자의 작업자세 평가
황재진 ( Jae Jin Hwang ),정명철 ( Myung Chul Jung ),김현주 ( Hyun Joo Kim ),정최경희 ( Kyung Hee Jungchoi ),박진욱 ( Jin Wook Bahk ),이인석 ( In Seok Lee ) 한국안전학회(구 한국산업안전학회) 2011 한국안전학회지 Vol.26 No.5
The goal of this study was to determine whether food industry workers are exposed to musculoskeletal loads due to the work time, frequency, awkward postures and inappropriate workspace design. Three catering workers were evaluated based on job analysis and posture analysis. The results showed that the four most time-consuming tasks were arranging(17%), cooking(16%), handling before cooking(15%) and cutting(15%), and the four most frequent tasks were arranging(21%), cooking(18%), handling after cooking(16%) and handling before cooking(13%). The most common posture was a standing posture(73%) with neutral back(73%), and bent head(50%), left lower arm(71%), right lower arm(78%) and right hand(60%). The comparative analysis of subtasks for the risk levels of musculoskeletal disorders was conducted using the work time, frequency and cumulative time of the postures. The ``displaying`` and ``handling after cooking`` showed higher risk levels than other subtasks. In addition, the height and length of the tables were evaluated to be inadequate for the workers. It can be concluded that the working environments for catering workers of restaurants should be improved due to the high cumulative time of awkward postures of upper extremities.
황재진 ( Jae-jin Hwang ),김용범 ( Yong-bum Kim ),채현석 ( Hyen-seok Chae ),최명렬 ( Myung-ryul Choi ) 한국정보처리학회 2004 한국정보처리학회 학술대회논문집 Vol.11 No.1
정보화 물결과 더불어 산업 및 사회 전반에 걸쳐 정보의 중요성은 나날이 증가하고 있다. 특히 인터넷을 기반으로 한 정보 교환과 통신 서비스들이 활발하게 이루어지고 있다. 신뢰성 있는 정보 교환을 위해서 정보 보호 메카니즘은 필수적이다. 많은 암호 알고리즘들이 소프트웨어 방식으로 구현되어 왔는데, 암호화 속도나 해킹에 대한 취약성이 문제되고 있다. 고속의 암호화와 보다 안전한 정보의 관리를 위해서는 암호 알고리즘의 하드웨어 구현이 요구된다. 본 논문에서는 AES의 후보 암호 알고리즘으로 채택되었으며, 우수한 암호 알고리즘으로 평가받고 있는 RC6를 하드웨어로 구현해 보았다.
혈액투석을 위한 이중도관 삽입 후 생긴 가성동맥류의 치료
황재진 ( Jae Jin Hwang ),김완수 ( Wan Soo Kim ),전대홍 ( Dae Hong Jeon ),강여진 ( Yeo Jin Kang ),박동준 ( Dong Jun Park ),장세호 ( Se Ho Chang ),신태범 ( Tae Bum Shin ),김현정 ( Hyun Jung Kim ) 대한신장학회 2010 Kidney Research and Clinical Practice Vol.29 No.5
In patients with end-stage renal disease, cannulation of the central venous system with large-bore dual-lumen catheters is often necessary until a functioning vascular access can be created. However, the technique of placing a dual-lumen catheter can make complication. The right internal jugular vein is the preferred site of hemodialysis catheter placement because its complication rate was lower compared with the subclavian and left internal jugular veins. Common complications include severe bleeding, hematoma formation, pneumothorax and hemothorax, atrial or ventricular arrhythmias, malposition of the catheter, air embolism, secondary infections, and intraarterial placement of the catheter. We report an unusual case of pseudoaneurysm of the superior thyroidal artery complicating an attempt of internal jugular-vein catheterization which was successfully treated by endovascular coil embolization.
황재진 ( Jae Jin Hwang ),정명철 ( Myung Chul Jung ),김현주 ( Hyun Joo Kim ),정최경희 ( Kyunghee Jung Choi ),박진욱 ( Jin Wook Bahk ),이인석 ( In Seok Lee ) 한국안전학회(구 한국산업안전학회) 2011 한국안전학회지 Vol.26 No.3
The objective of this study was to identify risk factors associated with the occurrence of musculo-skeletal symptoms of cashiers and provide suggestions for an improved workspace design. Workload and exertion of each task were measured using job analysis and posture analysis. The three most time-consuming tasks were waiting (43.8%), scanning (23.5%) and payment transaction (22.9%). It was analyzed that the workspace can be improved by applying Korean anthropometric data to the design of the desk height. The most common posture was a standing posture with neutral back, and bent lower arms and hands. Finally, it was revealed that ``scanning`` and ``payment transaction`` seemed more stressful than other operations. The result of the ergonomic evaluation would be a useful basis for designing an improved workspace.
위장관 ; 양성자 펌프 억제제에 반응하는 식도 호산구증가증: 일개 대학병원사례의 개요
안병규 ( Byung Kyu Ahn ),이동호 ( Dong Ho Lee ),이창민 ( Chang Min Lee ),황재진 ( Jae Jin Hwang ),윤혁 ( Hyuk Yoon ),신철민 ( Cheol Min Shin ),박영수 ( Young Soo Park ),김나영 ( Na Young Kim ) 대한소화기학회 2016 대한소화기학회지 Vol.67 No.4
Background/Aims: Eosinophilic esophagitis (EoE) is a chronic, immune/antigen-mediated esophageal disease, with eosinophilic infiltration limited to the esophagus. A minority of EoE patients respond well to proton pump inhibitor (PPI) therapy alone, and that condition is labelled PPI-responsive esophageal eosinophilia (PPI-REE). The prevalence of PPI-REE among EoE cases is unknown. We aimed to identify clinical manifestations of PPI-REE, and the proportion of PPI-REE among all EoE cases. Methods: We reviewed pathology of the 4,075 patients who underwent esophageal biopsy at an institution from March 2003 to July 2015. EoE was diagnosed based on esophageal symptoms and eosinophilic infiltration limited to the esophagus, with ≥15 eosinophils per high-power field. We collected endoscopic and pathologic findings, and clinical features for these patients. Results: Thirteen (0.3%) patients were diagnosed with EoE. Clinical manifestations were dysphagia (30.8%), foreign body sensation (23.1%), regurgitation (23.1%), cough (15.4%), heartburn (15.4%), nausea (7.7%), dyspepsia (7.7%). The endoscopic findings noted were polypoid lesion (23.1%), whitish plaque or exudate (23.1%), linear furrow (7.7%), concentric ring (7.7%), nodularity (7.7%), erosion (7.7%), and normal (30.8%). Of these patients, five had a favorable course with PPI as monotherapy. Conclusions: The proportion of EoE among all patients undergoing endoscopic biopsy was 0.3%. Of those, PPI-REE comprised 38%. Most of the endoscopic findings were atypical or normal when compared to the typical findings in EoE. In conclusion, patients who present with symptoms related to esophageal dysfunction need esophageal biopsy, regardless of the endoscopic findings. Moreover, patients diagnosed with EoE need to be treated first with PPI alone. (Korean J Gastroenterol 2016;67:178-182)
위식도 역류질환이 있는 기관지확장증 환자에서 양성자 펌프 억제제의 효과
안병규 ( Byungkyu Ahn ),이동호 ( Dong Ho Lee ),이창민 ( Chang Min Lee ),황재진 ( Jae Jin Hwang ),윤혁 ( Hyuk Yoon ),신철민 ( Cheol Min Shin ),박영수 ( Young Soo Park ),김나영 ( Nayoung Kim ) 대한소화기학회 2016 대한소화기학회지 Vol.68 No.1
Background/Aims: Bronchiectasis is aggravated by gastroesophageal reflux disease (GERD) owing to micro aspiration. Some researchers note the effect of antireflux surgery in bronchiectasis with GERD. However, few have investigated the effects of medical antireflux therapy. We investigated the effect of proton pump inhibitors (PPIs) in bronchiectasis with GERD. Methods: From March 2003 to May 2015, the clinical records of patients who had bronchiectasis with GERD were reviewed. Patients underwent an initial pulmonary function test (PFT) and chest computed tomography when diagnosed with bronchiectasis. One group with typical GERD symptoms was treated with PPIs, while the other group was not. Both groups underwent PFTs within six months after completing PPI therapy. Population characteristics and associations were compared between the groups. Results: Two hundred and fifty-seven patients (124 male, 133 female; mean age 67.6±10.0 years) were included. There were no significant differences between the groups in terms of forced vital capacity (FVC; p=0.239), forced expiratory volume in one second (FEV1; p=0.555), or FEV1/FVC (p=0.374) after PPI therapy. However, there were significant improvements in FVC (p=0.002) and FEV1 (p=0.006) in patients with high BMI in the PPI treatment group. Conclusions: PPIs have no effect on the pulmonary function in patients with bronchiectasis and GERD. However, PPIs were noted to produce improvements in lung function in patients with bronchiectasis and high BMI. (Korean J Gastroenterol 2016;68:10-15)
김완수 ( Wan Soo Kim ),김태효 ( Tae Hyo Kim ),황재진 ( Jae Jin Hwang ),김현진 ( Hyun Jin Kim ),정운태 ( Woon Tae Jung ),이옥재 ( Ok Jae Lee ),이정희 ( Jeoung Hee Lee ) 대한내과학회 2011 대한내과학회지 Vol.80 No.4
Rhabdoid transformation is an extremely rare occurrence in sarcomatoid cholangiocarcinoma. Only two cases have been reported in the medical literature worldwide, and its clinical and pathological characteristics remain unknown. Published case reports indicate that rhabdoid cholangiocarcinoma grows rapidly, with early metastasis and a particularly poor prognosis. Here, we report a case of rhabdoid transformation in sarcomatoid cholangiocarcinoma that exhibited aggressive behavior and resulted in a devastating prognosis. (Korean J Med 2011;80:453-457)
문인규 ( In Kyu Moon ),김태효 ( Tae Hyo Kim ),장현정 ( Hyun Jeong Jang ),김완수 ( Wan Soo Kim ),황재진 ( Jae Jin Hwang ),정운태 ( Woon Tae Jung ),이옥재 ( Ok Jae Lee ) 대한내과학회 2011 대한내과학회지 Vol.81 No.4
Desmoid tumor is rare neoplasm characterized by clonal proliferation of myofibroblasts that do not metastasise, but often exhibit an infiltrative pattern and functional impairment. The etiology of this tumor is unknown, but hormonal, genetic, and physical factors play a role in its development and growth. The clinical behavior and natural history of desmoid tumors remains unpredictable and enigmatic. However, spontaneous regression of desmoid tumors is rare. Here we report spontaneous regression of an intraabdominal desmoid tumor in a patient who underwent total gastrectomy. (Korean J Med 2011;81:487-491)
Sump 증후군에 의한 간농양의 간위루를 통한 자발성 농양배액 1예
황재진,하창윤,장현정,윤은영,주지현,안연정,민현주,김태효,김현진,정운태,이옥재,이선영 이화여자대학교 의과학연구소 2010 EMJ (Ewha medical journal) Vol.33 No.2
A 55-year-old man was admitted to our hospital with symptom of fever, chilling, abdominal discomfort and weight loss for 2months. Abdominal computed tomography(CT) revealed a 5×3.75 cm sized low attenuated lesion in the left lateral segment of liver. Esophagogastrodedodenoscopy showed a fistula with dirty exudates at the fundus and a yellowish stone and food debris at the choledochoduodenostomy site. Endoscopic retrograde cholangiopancreatography (ERCP) was performed and stone and food materials in common bile duct was removed with snare and basket. We experienced a case of liver abscess due to sump syndrome and spontaneous drainage to the stomach.