경북 성주지역 장수노인의 영양상태(Ⅰ)

백지원(Baek, Ji-Won),구보경(Koo, Bo-Kyung),김규종(Kim, Kyu-Jong),이연경(Lee, Yeon-Kyung),이성국(Lee, Sung-Kook),이혜성(Lee, Hye-sung) 한국영양학회 2000 Journal of Nutrition and Health Vol.33 No.4

경북 성주지역 장수노인의 계절별 식품섭취 상태

백지원(Ji-Won Baek),구보경(Bo-Kyung Koo),김규종(Kyu-Jong Kim),이연경(Yeon-Kyung Lee),이성국(Sung-Kook Lee),이혜성(Hye-Sung Lee) 한국식품영양과학회 2000 한국식품영양과학회지 Vol.29 No.4

본 연구는 우리나라 장수노인들의 식품섭취상태를 분석 평가하고 건강한 장수를 위한 식생활 지침의 설정을 위한 기초자료를 얻고자 수행되었다. 연구 대상은 경상북도 성주군에 거주하는 85세 이상 고령노인 중에서 일상 생활에 문제가 없는 224명이었으며 이들을 대상으로 반복 24시간 회상법을 이용하여 1년간 4회의 계절별 식품 섭취 조사를 실시하였으며 결과를 요약하면 다음과 같다. 계절별 식품군별 섭취량에 있어서 남자노인은 감자류의 섭취량이 여름철에 유의적으로 높고, 버섯류의 섭취량이 가을철에 유의하게 높은 것을 제외하고는 모든 식품군의 섭취량에 있어 계절별 차이가 나타나지 않았다. 여자노인의 경우 곡류, 당류, 두류, 채소류, 과일류, 조미료류, 음료 및 주류, 육류, 우유류, 어패류의 섭취량이 겨울철에 유의하게 높았으며, 종실류, 해조류, 난류의 섭취량은 계절에 따른 차이가 없었다. 조사 대상자들의 연평균 1일 총 식품 섭취량은 594.4±186.1 g이었으며 이 중에서 513.5±161.2 g(86.4%)는 식물성 식품군으로부터 섭취하였고 79.3±56.7 g(13.3%)는 동물성 식품군으로부터 섭취하였다. 섭취량이 가장 높았던 식품군은 곡류였으며그 다음이 채소류, 과일류, 어패류, 음료 및 주류, 조미료류, 두류, 육류, 우유류, 감자류 등의 순이었다. 장수 노인대상자들의 음식별 섭취빈도는 밥류에 있어서는 쌀밥의 섭취비율이 80.1~89.2%로 가장 높았으며 국과 찌개류에서는 쇠고기국, 된장국, 된장찌개의 섭취 비율이 높았다. 어육류 식품의 경우 조기구이의 섭취비율(9.4~12.7%)이 높았으며, 해조류 식품의 경우 김구이의 섭취비율(7.4~20.5%)이 높았고, 각 계절마다 계절식품의 섭취비율이 높았다. 김치류의 경우 배추김치의 섭취비율이 4계절 모두 70% 이상으로 높게 나타났다. 일품요리류는 손쉽게 조리할 수 있는 라면과 국수의 섭취비율이 높았다.<br/> 본 연구의 결과에서 경북 성주지역 장수 노인들의 계절별 식품 섭취량에 있어 겨울철의 식품 섭취량이 다른계절에 비해 유의하게 높았으며, 남자노인보다는 여자노인이 식품섭취에 계절에 의한 영향을 더욱더 많이 받는 것으로 나타났다. 또한 장수 노인들은 가공식품보다는 계절마다 제철에 생산되는 자연 식품의 섭취비율이 높았다. 전반적으로 장수노인들은 소식의 경향을 보였으며 이와 같은 소식습관과 신선한 식물성 식품들의 일상 섭취가 건강한 장수에 영향을 미쳤을 가능성도 있을 것으로 사료된다. The purpose of this study was to estimate food intakes of the long-lived elderly and to obtain the data for establishing dietary guidelines that may be recommended for the general population for the sake of longevity. The subjects of the study were 224 elderly people of age over 85 years living in Kyungpook Sung-Ju area who have no problem in daily living. The food consumption survey was carried out seasonally by the repeated 24-hr recall method for one year. The subject group for this study was composed of 58 males and 166 females, the average age being 87 years old. Food intakes of the winter were more than any other seasons. The mean daily total food intake per capita was 594.4 g, 513.5 g (86.4%) from plant foods and 79.3 g (13.3%) from animal foods. The sequence of high intakes of food groups were cereals, vegetables, fruits, fishes, legumes and meats. Boiled white rice, beef soup, soybean paste soup, soybean paste stew, broiled yellow croaker, kimchi, ra myon and broiled noodles were consumed most frequently. In conclusion, the subjects consumed much more plants foods than animal foods and consumed more natural and seasonal foods than processed foods and also showed food habits of eating small meals. Dietary habits of eating small meals containing abundant amount of fresh plant foods might partially contribute to the longevity of the subjects.

Remodeling of Deteriorated Irrigation Aqueducts Using Precast Polymer Concrete Flume

Yeon, Kyu Seok,Kawakami, Makoto,Choi, Yoon Sang,Hwang, Jin Yong,Min, Seung Ho,Yeon, Jung Heum Trans Tech Publications, Ltd. 2013 Advanced materials research Vol.687 No.-

<P>This study is designed to review the causes and modes of deterioration in irrigation aqueducts constructed with reinforced concrete, and introduce existing rehabilitation and new remodeling methods. As a result, because of the typical nature of irrigation aqueducts that are exposed to severe natural environment, the causes and modes of deterioration were more complex and diverse than other concrete structures. Also, due to the thinner cross sectional thickness of the structure, conducting a rehabilitation work was turned out to be difficult. As an active method for settling this problem, this study developed a method to remove the entire flume, upper structure of aqueduct, and replace with a precast flume constructed with polymer concrete. A loading test was performed using full-scale specimens, and then the suggested remodeling method was implemented in the actual field structures. The investigation showed that the suggested remodeling method was appropriate to secure the sustainability.</P>

Influence of Q-Tocopherol, an Antioxidant on Sperm Characteristics and Gene Expressions during Cryopreservation in Boar

Yeon-Ji Jeong,Oh-Ha Sic,Dae-Sil Kim,Young-Kuk Joo,Jun-Kyu Park,Sang-Yong Choe,Gyu-Jin Rho 한국동물번식학회 2007 Reproductive & Developmental Biology(Supplement) Vol.31 No.2s

Intrinsic lifetimes of the Soret bands of the free-base tetraphenylporphine (H₂TPP) and Cu(<small>II</small>)TPP in the condensed phase

Yeon, Ki Young,Jeong, Dahyi,Kim, Sang Kyu Royal Society of Chemistry 2010 Chemical communications Vol.46 No.30

<P>Soret band lifetimes of the free-base tetraphenylporphine (H<SUB>2</SUB>TPP) and Cu(<SMALL>II</SMALL>) tetraphenylporphine (Cu<SUP>II</SUP>TPP) at 408 nm have been directly measured with femtosecond (fs) resolution using the fluorescence-upconversion technique for the first time, giving <I>τ</I> = 68 ± 15 and 63 ± 15 fs, respectively, in benzene solvent.</P> <P>Graphic Abstract</P><P>Soret band lifetimes of the free-base tetraphenylporphine (H<SUB>2</SUB>TPP) and Cu(<SMALL>II</SMALL>) tetraphenylporphine (Cu<SUP>II</SUP>TPP) at 408 nm have been directly measured, giving <I>τ</I> = 68 ± 15 and 63 ± 15 fs, respectively, in benzene solvent. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c0cc01115k'> </P>

Pyrolysis oil production from waste plastics in a molten salt reactor

( Sang Kyu Choi ),( Yeon Seok Choi ),( Yeon Woo Jeong ),( So Young Han ),( Quynh Van Nguyen ) 한국폐기물자원순환학회 2022 ISSE 초록집 Vol.2022 No.-

The plastic consumption is continuously increasing worldwide, and the efficient treatment of waste plastic is becoming important. Material recycling might be one of the best way for the waste plastic recycling, but it is possible only for well-sorted and cleaned waste plastic. Although the energy recovery is possible by incineration, the emission of carbon dioxide is inevitable which causes the global warming. As a conversion process of waste plastic, the pyrolysis method for oil production has been studied for many years. Rotary kiln reactor has been generally used where the feedstock was pyrolyzed for hours with a batch operation. Fast pyrolysis in a bubbling fluidized bed reactor has been also studied for the pyrolysis oil production from plastic feedstock. The crude pyrolysis oil can be further refined and distillated to produce fuel oil or chemicals. In the conventional pyrolysis reactor, the clogging problem usually limits a long-term operation due to wax formation from plastic pyrolysis, especially for polyethylene and polypropylene. Additionally, when polyvinyl chloride (PVC) was used as a feedstock the residual chlorine in the pyrolysis oil can cause serious environmental problem. There have been studies on the alternative methods of plastic pyrolysis, and the molten salt pyrolysis was suggested as an efficient pyrolysis process. Salts exist in solid phase at atmospheric temperature but change into the liquid phase at elevated temperature. It is known that the molten salts have very good heat transfer characteristics, and chlorine can be efficiently separated depending on the salt type. In this study, the fast pyrolysis of various plastics including polyethylene, polypropylene and polystyrene was performed in a lab-scale molten salt reactor. A eutectic mixture of sodium hydroxide(NaOH) and sodium carbonate(Na₂CO₃) was used, and the pyrolysis was performed at the temperature about 500℃. At this condition, the plastic was quickly decomposed into gas phase and the liquid oil was obtained by condensing the volatile in the pyrolysis gas. The pyrolysis oil yields and characteristics were analyzed and compared for various plastics.

Comparison of single-port laparoscopy and laparotomy in early ovarian cancer surgical staging

( Kyu Hee Cho ),( Yeon Ju Lee ),( Kyung Jin Eoh ),( Yong Jae Lee ),( Jung-yun Lee ),( Eun Ji Nam ),( Sunghoon Kim ),( Young Tae Kim ),( Sang Wun Kim ) 대한산부인과학회 2021 Obstetrics & Gynecology Science Vol.64 No.1

Objectives The aims of this study were to assess the feasibility of single-port laparoscopic surgical staging (SPLS) in early ovarian cancer and to compare the surgical outcomes of SPLS with those of staging laparotomy. Methods Between January 2014 and December 2018, 40 patients underwent SPLS and 41 patients underwent staging laparotomy at Yonsei Cancer Center. The patients were diagnosed with International Federation of Gynecology and Obstetrics (FIGO) stage I ovarian cancer. Variables such as patient age, body mass index (BMI), tumor size, FIGO stage, and perioperative surgical outcomes and survival outcomes of SPLS and laparotomy were compared. Results The total operation time was similar between the 2 groups (SPLS: 201.4 vs. laparotomy: 203.0 minutes, P=0.806). The median tumor diameters in the SPLS and laparotomy groups were 11.0 (2.5-28 cm) and 15.4 (6-40 cm), respectively (P=0.001). The SPLS group had lower tumor spillage rate (5.0% vs. 19.5%, P=0.047), less intraoperative blood loss (102.0 vs. 371.5 mL, P<0.001), less postoperative pain, and shorter postoperative hospital stay (5 vs. 9.5 days, P<0.001). The intraoperative major complication rate was similar between groups (2.5% vs. 4.9%, P=0.571). There was no significant difference in progression-free survival between the 2 groups (P=0.945). There were no deaths in either group. Conclusion SPLS is feasible in early ovarian cancer and has better perioperative surgical outcomes, in some aspects, than staging laparotomy without compromising survival outcomes. SPLS could be performed in patients suspected to have early ovarian cancer.

Prediction of Insulation Capability for Ground Fault to Consider Asymmetry in SF<SUB>6</SUB> Circuit Breaker

Yeon-Ho Oh,Ki-Dong Song,Hong-Kyu Kim,Hae June Lee,Sung-Chin Hahn 대한전기학회 2015 Journal of Electrical Engineering & Technology Vol.10 No.5

Currently, most high-voltage gas circuit breakers (CBs) include asymmetrical geometries in the shield, the tank, the hot-gas exhaust, and the connection parts for bushings. For this reason, a 3-dimensional (3-D) analysis of the insulation capability is necessary, rather than a 2-D analysis. However, a 3-D analysis has difficulties due to the computational time and complex modeling. This paper presents a 3-D analysis considering the asymmetry in high-voltage gas CBs and a technique to reduce the calculation time. In the proposed technique, the arc plasma requiring the most computational time is first calculated by a 2-D analysis. Then, the results such as pressure, temperature, and velocity are input as a source for the 3-D analysis. This technique is applied to a 145kV self-blast-type CB and the analysis result exhibits good agreement with the experimental result.

Studies on Biological Activity of Wood Extractives (16) - Antioxidant Components from the Bark of Rhus chinensis -

Yeon Suk Lee,Young Ki Park,Oh Kyu Lee,Il Kwon Park,Sang Chul Shin,Ha Young Kang,Don Ha Choi,Tae Ho Choi,Hak Ju Lee 한국목재공학회 2005 목재공학 Vol.33 No.5

A Case of Recurrent Solid Pseudopapillary Tumor of the Pancreas with Involvement of the Spleen and K idney

Sang Eun Park,Nam Sook Park,Jae Min Chun,Nam Whan Park,Young Joon Yang,Gak Won Yun,이효진,Hwan Jung Yun,Deog Yeon Jo,Kyu Sang Song,Samyong Kim 대한암학회 2006 Cancer Research and Treatment Vol.38 No.2

Solid pseudopapillary tumor of the pancreas (SPTP) isa rare primary pancreatic tumor of an unknown etiologythat is usually diagnosed in adolescent girls and youngwomen. Most SPTPs are considered to be benign andonly rarely metastasize. We report here on a 27-year oldwoman with recurrent SPTP with involvement of both thespleen and left kidney at the time of the initial diagnosis,and with aggressive behavior. In July 1995, she wasadmitted with abdominal discomfort and mass. Sheunderwent exploratory laparotomy with distal pancreatectomy, left nephrectomy and splenectomy, and wasdiagnosed with SPTP with invasion to both the spleenand left kidney. In June 2001, she again presented withabdominal pain and was diagnosed as having recurrenceof the tumor. She underwent mass excision and omentectomy.Then she was lost to follow-up. In November2005, she presented once again with an abdominal massand was diagnosed with recurred SPTP, which formed ahuge intraperitoneal mass with peritoneal seeding and thetumor showed multiple metastases in the liver. She iscurrently being treated conservatively. (Cancer Res Treat.2006;38:118-120)