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Photonics Research 2018年第1期9卷 30-36页

作者： kyung ROCK SON BYEONG RYONG LEE MIN HO JANG HYUN CHUL PARK YONG HOON cho TAE GEUN KIM School of Electrical Engineering Korea University Anam-ro 145 Seongbuk-gu Seoul 02841 South Korea Department of Physics and KI for the NanoCentury Korea Advanced Institute of Science and Technology Daejeon 305-701 South Korea

We investigate the localized surface plasmon(LSP) effect by Al nanorings on the AlGaN/GaN multiple quantum well(MQW) structure emitting at 365 nm. For this experiment, first, the size of Al nanorings is optimized to maximize the energy transfer(or coupling) between the LSP and MQW using the silica nanospheres. Then, the Al nanorings with an outer diameter of 385 nm, which exhibit a strong absorption peak in the near-ultraviolet region, are applied to the top surface of the AlGaN/GaN MQW. The photoluminescence(PL) intensity of the MQW structure with Al nanorings increased by 227% at 365 nm compared to that without Al *** improvement is mainly attributed to an enhanced radiative recombination rate in the MQWs through the energy-matched LSPs by the temperature-dependent PL and time-resolved PL analyses. The radiative lifetime was about two times shorter than that of the structure without Al nanorings at room temperature. In addition, the measured PL efficiency at room temperature of the structure with Al nanorings was 33%, while that of the structure without Al nanorings was 19%, implying that LSP-QW coupling together with the nanoring array pattern itself played important roles in the enhancement.

关键词：等离子体通讯技术能量转移量子

Fish bone migration to the urinary bladder after rectosigmoid colon perforation

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World Journal of Gastroenterology 2014年第22期20卷 7075-7078页

作者： Min-kyung cho moon-Soo Lee Hyun-Young Han Seung Hyo Woo Department of Surgery Eulji University HospitalDaejeon 302-799South Korea Department of Radiology Eulji University HospitalDaejeon 302-799South Korea Department of Urology Eulji University HospitalDaejeon 302-799South Korea

Fish bones are the most common foreign objects leading to bowel *** cases are confined to the extraluminal space without penetration of an adjacent ***,abscess formation due to the perforation of the rectosigmoid colon by a fish bone can lead to the penetration of the urinary bladder and may subsequently cause the fish bone to migrate into the urinary *** the presented case,a 42-yearold female was admitted for lower abdominal *** computed tomography(CT)demonstrated a 5cm pelvic abscess containing a thin and curvilinear foreign *** conservative management,the patient was *** 1 mo,the subject developed a mechanical *** had to be delayed due to her *** of the foreign body to the urinary bladder was shown on additional CT.A Yellowish fish bone 3.5 cm in size was removed through intraoperative *** patient was discharged 8 d after the operation without any unexpected event.

关键词： Fish bone Rectosigmoid colon perforation Urinary b

Predictors for difficult cecal insertion in colonoscopy: The impact of obesity indices

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World Journal of Gastroenterology 2017年第13期23卷 2346-2354页

作者： Soo Yun moon Byung Chang Kim Dae kyung Sohn kyung Su Han Bun Kim Chang Won Hong Bum Joon Park Kum Hei Ryu Ji Hyung Nam Center for Colorectal Cancer Research Institute and HospitalNational Cancer Center Department of Surgery School of MedicineKyung Hee University Center for Cancer Prevention and Detection Research Institute and HospitalNational Cancer Center

AIM To identify the factors influencing cecal insertion time(CIT) and to evaluate the effect of obesity indices on CIT. METHODS We retrospectively reviewed the data for participants who received both colonoscopy and abdominal computed tomography(CT) from February 2008 to May 2008 as part of a comprehensive health screening program. Age, gender, obesity indices [body mass index(BMI), waist-to-hip circumference ratio(WHR), waist circumference(WC), visceral adipose tissue(VAT)volume and subcutaneous adipose tissue(SAT) volume on abdominal CT], history of prior abdominal surgery, constipation, experience of the colonoscopist, quality of bowel preparation, diverticulosis and time required to reach the cecum were analyzed. CIT was categorized as longer than 10 min(prolonged CIT) and shorter than or equal to 10 min, and then the factors that required a CIT longer than 10 min were *** A total of 1678 participants were enrolled. The mean age was 50.42 ± 9.931 years and 60.3% were men. The mean BMI, WHR, WC, VAT volume and SAT volume were 23.92 ± 2.964 kg/m2, 0.90 ± 0.076, 86.95 ± 8.030 cm, 905.29 ± 475.220 cm3 and 1707.72 ± 576.550 cm3, respectively. The number of patients who underwent abdominal surgery was 268(16.0%). Colonoscopy was performed by an attending physician alone in 61.9% of cases and with the involvement of a fellow in 38.1% of cases. The median CIT was 7 min(range 2-56 min, IQR 5-10 min), and mean CIT was 8.58 ± 5.291 min. Being female, BMI, VAT volume and involvement of fellow were significantly associated with a prolonged CIT in univariable analysis. In multivariable analysis, being female(OR = 1.29, P = 0.047), lower BMI(< 23 kg/m2)(OR = 1.62, P = 0.004) or higher BMI(≥ 25 kg/m2)(OR = 1.80, P < 0.001), low VAT volume(< 500 cm3)(OR = 1.50, P = 0.013) and fellow involvement(OR = 1.73, P < 0.001) were significant predictors of prolonged CIT. In subgroup analyses for gender, lower BMI or higher BMI and fellow involvement were predictors for prolon

关键词：内脏的肥胖困难的 colonoscopy 盲肠的插入时间身体集体索引女性

Effect of the herbal medicine Danggui Sini plus Wuzhuyu Shengjiang Tang on erythrocyte deformability in normal subjects: a cross-over trial

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Journal of Traditional Chinese Medicine 2018年第5期38卷 769-772页

作者： JiEun Lee Seung-Yeon cho Seong-Uk Park Woo-Sang Jung Sang-Kwan moon Jung-Mi Park Chang-Nam Ko Ki-Ho cho Seungwon Kwon Department of Cardiology and Neurology College of Korean Medicine Kyung Hee University

OBJECTIVE: To show whether Danggui Sini plus Wuzhuyu Shengjiang Tang(DSWST) has any transient effect on erythrocyte deformability in normal ***: A total of 25 subjects [mean age(27.8± 1.8) years] was enrolled in this study. The study was designed as a cross-over trial in which the subjects took part for 2 d. On the first day, blood samples were collected at baseline and 1-2 h after administration of water, whereas, on the second day, instead of water, the subjects were administered DSWST after the baseline blood sampling. The blood samples collected at baseline and after the administration water or DSWST, were examined for erythrocyte ***: The elongation index increased significantly after 2 h(P = 0.009) compared to the baseline after DSWST intake. However, after water intake, there was no significant differenceobserved. When comparing the percent change of erythrocyte deformability between DSWST and water, we found that after 2 h of administration,DSWST improved erythrocyte deformability significantly compared to water(P < 0.001).CONCLUSION: DSWST has a transient effect on erythrocyte deformability in normal subjects.

关键词： Erythrocyte deformability Peptide elongation factors Raynaud disease Coldness of hands and feet Cross-over studies Danggui Sini plus Wuzhuyu Shengjiang Tang

Congenital absence of the splenic artery and splenic vein accompanied with a duodenal ulcer and deformity

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World Journal of Gastroenterology 2009年第11期15卷 1401-1403页

作者： Eun kyung Shin Won moon Seun Ja Park Moo In Park Kyu Jong Kim Jee Suk Lee Jin Hwan Kwon Department of Gastroenterology Kosin University College of MedicineBusanSouth Korea Department of Radiology Kosin University College of MedicineBusanSouth Korea

Congenital absence of the splenic artery is a very rare *** the best of our knowledge, congenital absence of the splenic artery accompanied with absence of the splenic vein has not been *** report a case of the absence of the splenic artery and vein in a 61-year-old woman who presented with postprandial epigastric discomfort. Upper gastrointestinal endoscopy showed a dilated, pulsatile vessel in the fundus and duodenal stenosis. An abdominal computed tomography(CT)scan revealed absence of the splenic vein with a tortuously engorged gastroepiploic ***-dimensional CT demonstrated the tortuously dilated left gastric artery and the left gastroepiploic artery with non-visualization of the splenic *** administration of a proton pump inhibitor,abdominal symptoms resolved without any recurrence of symptoms during 6 mo of follow-up.

关键词：脾动脉脾静脉十二指肠溃疡先天性消化道内窥镜检查电脑断层扫描上腹部不适胃网膜静脉

Nutrition Programs through Public Health Centers in Korea

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Biomedical and Environmental Sciences 1996年第2期9卷 276-289页

作者： HYUN-kyung moon (Department of Food and Nutrition Science, Dankook University,Hannamdong 8 Yongsankoo, Seoul, 140-714 Korea) Department of Food and Nutrition Science Dankook University Seoul Korea.

In the peroid of confusion after the Korean War, there was an absolute shortage in the volume of food. The intake of energy and all other nutrients fell short of the recommended dietary intake. To solve the food shortage, there were many food assistant programs through the government channel. With the economic developments during past years, now, there are enough foods for everyone. Thus, food assistant program, which has been the only nutrition program in the government, is no longer needed except for low-income ***, there are not enough nutrition programs in the government. In 1994, about 30 public health center start nutrition programs with the help of Korean Dietetic *** this study, kinds of nutrition programs, age, sex and number of participants, the content of programs are studied. The effects of nutrition programs are partially ***, problems with current nutrition programs are discussed. Finally, future directions of nutrition programs in the public health centers are discussed

关键词： PHC Nutrition Programs through Public Health Centers in Korea

Effect of Isothermal Annealing on Nano Ti-Carbides Precipitation

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Journal of Iron and Steel Research(International) 2011年第S1期18卷 287-289页

作者： Cheol-ho Park Woo-jin Kim Nam-hyun Kang Hyung-hyup Do kyung-Mox cho Department of Materials Science and Engineering Pusan National UniversityBusan 609-735Korea Technical Research Laboratories Hyundai steelsDangjinChungnam 343-711Korea

Transmission electron microscopy was used to investigate the effect of isothermal holding temperature and time on the nano Ti-precipitates.A holding temperature was varied systematically from 400℃ to 1200℃.The isothermal holding was continued for 30s,300s and 900s,*** carbides of (Ti,Nb)C were precipitated significantly at 900℃.The size of carbides was approximately 10nm at 30s holding and increased to 20～30nm at 900s *** holding at 1000℃ showed the increased amount of carbides larger than *** 800℃,nano (Ti,Nb)C was not observed at 30s and it was examined at *** size of nano (Ti,Nb)C was smaller than that of 900℃.As the isothermal temperature decreased to 700 ℃,the nano (Ti,Nb)C was only seen at 900s holding and the size of carbides was smaller than *** (Ti,Nb)C was disappeared at isothermal holding below 600℃.The kinetics of nano (Ti,Nb)C precipitation were studied as a function of isothermal holding temperature and time,respectively,using the precipitate growth equations.

关键词： Ti carbide hot rolled steel hole expansion ratio isothermal holding nano precipitates

Correlation of Microstructure and Hydrogen Delayed Fracture for 1GPa Steels

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Journal of Iron and Steel Research(International) 2011年第S1期18卷 252-254页

作者： Hee Jae Kang Ji Tae Park Soon Tae Ahn kyung Mox cho Nam Hyun Kang Department of Materials Science and Engineering Pusan National UniversityBusan 609-735Korea Samhwa Steel 339-4 Samrak-dongSasang-guBusan 617-825Korea

Automobile industry tries to reduce the weight of automobile using high-strength ***,the high-strength steels are highly susceptible to delayed-fracture caused by hydrogen *** increasing the strength,hydrogen embrittlement is more sensitive to diffusible *** mechanism of delayed-fracture and the relationship with the microstructure and alloying elements are still *** study analyzed the effect of the size and the spheroidization rate for the carbides on hydrogen-induced delayed fracture for 1GPa TS steel.

关键词： hydrogen delayed fracture microstructure spheroidization

Comparative effectiveness of combined antiplatelet treatments in acute minor ischaemic stroke

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Stroke & Vascular Neurology 2022年第1期7卷 13-21页

作者： Shina Kim Joon-Tae Kim Ji Sung Lee Beom Joon Kim Jong-Moo Park Kyusik Kang Soo Joo Lee Jae Guk Kim Jae-Kwan Cha Dae-Hyun Kim Tai Hwan Park Sang-Soon Park kyung Bok Lee Jun Lee Keun-Sik Hong Yong-Jin cho Hong-Kyun Park Byung-Chul Lee kyung-Ho Yu Mi Sun Oh Dong-Eog Kim Wi-Sun Ryu Jay chol choi Jee-Hyun Kwon Wook-Joo Kim Dong-Ick Shin Sung-Il Sohn Jeong-Ho Hong Man-Seok Park Kang-Ho choi Ki-Hyun cho Juneyoung Lee Hee-Joon Bae Department of Neurology Chonnam National University HospitalChonnam National University Medical SchoolGwangjuKorea Clinical Research Center Asan Institute for Life SciencesAsan Medical CenterUniversity of Ulsan College of MedicineSeoulKorea Department of Neurology Cerebrovascular CenterSeoul National University Bundang HospitalSeongnamKorea Department of Neurology Uijeongbu Eulji Medical CenterEulji University School of MedicineUijeongbu-siKorea Department of Neurology Nowon Eulji Medical CenterEulji UniversitySeoulKorea Department of Neurology Eulji University HospitalEulji UniversityDaejeonKorea Department of Neurology Dong-a UniversityBusanKorea Department of Neurology Seoul Medical CenterSeoulKorea Department of Neurology Soonchunhyang University HospitalSeoulKorea Department of Neurology Yeungnam University HospitalDaeguKorea Department of Neurology Inje University Ilsan Paik HospitalInje University College of MedicineGoyangKorea Department of Neurology Hallym University Sacred Heart HospitalAnyangKorea Department of Neurology Dongguk University Ilsan HospitalGoyangKorea Department of Neurology Jeju National University HospitalJeju National University School of MedicineJejuKorea Department of Neurology University of Ulsan College of MedicineUlsanKorea Department of Neurology Chungbuk National University HospitalCheongjuKorea Department of Neurology Keimyung University Dongsan Medical CenterDaeguKorea Department of Biostatistics Korea University College of MedicineSeoulKorea

Background No study has thoroughly compared the effectiveness of combined antiplatelet treatments(other than clopidogrel–aspirin)versus clopidogrel–aspirin or aspirin alone for early secondary prevention in acute ischaemic *** We identified patients with acute,minor,non-cardiogenic ischaemic stroke treated with aspirin alone,clopidogrel–aspirin or other combination *** scores considering the inverse probability of treatment weighting were used to adjust for baseline *** primary outcome was the composite of all strokes(ischaemic or haemorrhagic),myocardial infarction and all-cause mortality at 3 *** Among 12234 patients(male:61.9%;age:65.5±13 years)who met the eligibility criteria,aspirin,clopidogrel–aspirin and other combination treatments were administered in 52.2%,42.9%and 4.9%of patients,*** the crude analysis,the primary outcome event at 3 months occurred in 14.5%of the other combination group,14.4%of the aspirin group and 13.0%of the clopidogrel–aspirin *** the weighted Cox proportional hazards analysis,the 3-month primary outcome event occurred less frequently in the clopidogrel–aspirin group than in the other combination group(weighted HR:0.82(0.59–1.13)),while no association was found between the aspirin group(weighted HR:1.04(0.76–1.44))or other combination group and the 3-month primary *** Other combined antiplatelet treatment,compared with aspirin alone or clopidogrel–aspirin,was not associated with reduced risks of primary composite vascular events or recurrent stroke during the first 3 months after ***,the results suggest that other combination treatments,particularly the cilostazol-based combination,may not be effective alternatives for clopidogrel–aspirin to prevent early vascular events in patients with acute minor *** exploration in clinical trials will be needed.

关键词： prevention treatment alone

Favorable surgical treatment outcomes for chronic constipation with features of colonic pseudo-obstruction

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World Journal of Gastroenterology 2012年第32期18卷 4441-4446页

作者： Eon Chul Han Heung-Kwon Oh Heon-Kyun Ha Eun kyung choe Sang Hui moon Seung-Bum Ryoo Kyu Joo Park Department of Surgery Seoul National University College of MedicineSeoul 110-744South Korea Seoul National University Hospital Gangnam Center Seoul 110-744South Korea

AIM:To determine long-term outcomes of surgical treatments for patients with constipation and features of colonic ***:Consecutive 42 patients who underwent surgery for chronic constipation within the last 13 years were prospectively *** identified a subgroup with colonic pseudo-obstruction(CPO) features,with dilatation of the colon proximal to the narrowed transitional zone,in contrast to typical slowtransit constipation(STC),without any dilated colonic *** outcomes of surgical treatments for chronic constipation with features of CPO were analyzed and compared with outcomes for ***:Of the 42 patients who underwent surgery for constipation,33 patients had CPO with dilatation of the colon proximal to the narrowed transitional *** were 16 males and 17 females with a mean age of 51.2 ± 16.1 *** had symptoms of chronic intestinal obstruction,including abdominal distension,pain,nausea,or vomiting,and the mean duration of symptoms was 67 mo(range:6-252 mo).Preoperative defecation frequency was 1.5 ± 0.6 times/wk(range:1-2 times/wk).Thirty-two patients underwent total colectomy,and one patient underwent diverting transverse *** was no surgery-related *** histologic examination showed hypoganglionosis or agangliosis in 23 patients and hypoganglionosis combined with visceral neuropathy or myopathy in 10 *** contrast,histology of STC group revealed intestinal neuronal dysplasia type B(n = 6) and visceral myopathy(n = 3).Early postoperative complications developed in six patients with CPO;wound infection(n = 3),paralytic ileus(n = 2),and intraabdominal abscess(n = 1).Defecation frequencies 3 mo after surgery improved to 4.2 ± 3.2 times/d(range:1-15 times/d).Long-term follow-up(median:39.7 mo) was available in 32 patients;all patients had improvements in constipation symptoms,but two patients needed intermittent medication for management of *** 32 patients had distinct

关键词：手术治疗肠梗阻结肠便秘慢性假性平均年龄 CPO