• The Journal of Asian Finance, Economics and Business
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• 제7권1호
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• pp.313-320
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• 2020

This study aims to analyze the household economic behavior of salt farmers participants in Salt Business Empowerment Program (Pugar) including of salt production, work flow, household revenue, the behavior of consumption of food and non-food items and the welfare level. This research followed a survey method by engaging 32 household farmers as participants. The findings revealed that the empowerment program was carried out through the technical assistance of salting production and the assistance of equipment and technology from Thread of Screw Filter and geoisolators to improve the quality of salt. The problems come when the marketing of salt is still limited to the collectors of salt which led to the price of salt level, manufacturers have not remained stable. Household revenue sources for some salt farmers also come from non-salt pond business activities. Farmer household revenue can be used to meet staple food consumption and non-food staple consumption. Based on the indicators of family welfare, households participating in the empowerment program were group into the category of prosperous families. In order to stabilize the price of salt at the producer level, government intervention in the people's salt trading system is needed.

• 한국식생활문화학회지
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• 제31권6호
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• pp.554-572
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• 2016

This study is a comparative study on a cookbook published in 1900s titled "Jusikbangmun", one of collections of the National Central Library, along with other cookery books in Joseon Dynasty in the late 1800s to early 1900s. "Jusikbangmun" consists of 51 recipes, including 45 kinds of staple foods and six kinds of brews. More than 60% of the recipes deal with staple dishes and side-dishes, whereas the rest deal with ceremonial dishes and drinking. The "Jusikbangmun" applies a composite method of cooking from boiling and steaming to seasoning with oil spices. The ingredients are largely meats rather than vegetables, which is distinguished other cookery books in the Joseon Dynasty. Only "Jusikbangmun" deals with such peculiar recipes as 'Kanmagitang', 'Bookyengsumyentang', 'Jeryukpyen', 'Yangsopyen', and 'Dalgihye'. It is estimated that "Jusikbangmun" was published around the 1900s based on findings that "Jusikbangmun" is more similar with "Buinpilgi" and "Joseonyorijebeop" in the early 1900s than with "Kyuhapchongseo", "Siyijenseo" and "Jusiksieui" in 1800s. Therefore, "Jusikbangmun" is a valuable resource, we can use understand the food culture of the late Joseon period.

• Management Science and Financial Engineering
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• 제18권2호
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• pp.13-17
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• 2012

Set covering has widely been accepted as a staple tool for feature selection in data mining. We present a generalized version of this classical combinatorial optimization model to make it better suited for the purpose and propose a surrogate relaxation-based procedure for its meta-heuristic solution. Mathematically and also numerically with experiments on 25 set covering instances, we demonstrate the utility of the proposed model and the proposed solution method.

• Journal of Chest Surgery
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• 제42권3호
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• pp.337-343
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• 2009

배경: 일차성 기흉 치료에서 비디오 흉강경수술 후 재발이 큰 문제이다. 이 연구는 기포 절제술 시에 재발 방지를 위해 자동봉합기의 봉합면에 흡수성 보강재(GORE $SEAMGUARD^{(R)}$)를 사용 후 안정성과 효과에 대해 조사하였다. 대상 및 방법: 2000년 1월부터 2004년 12월까지 성균관의대 마산삼성병원 흥부외과에서 일차성 기흉 치료에 흉강경 수술로 300명을 시행하였다. 143명(Group A)은 자동 봉합기 봉합선 보강재를 사용하였고, 142명(Group B)은 자동 봉합기만 사용하였다. 모든 환자에서 기계적인 흉막유착술을 시행하였다. 수술시간, 흉관 거치기간, 입원기간과 수술 후 재발된 환자 수를 비교하였다. 결과: 수술 후의 사망은 없었으며, 비디오 흉강경 수술에서 개흉술로 전환된 환자는 5% (15/300)였다. 두 군간의(Croup A versos Group B) 비교에서는 수술시간($49.6{\pm}25.6$ vs $51.8{\pm}30.4$ minutes, p=0.514), 흉관 거치기간($5.8{\pm}2.5$ vs $7.2{\pm}3.3$ days, p<0.005), 입원기간($10.9{\pm}4.3$ vs $12.5{\pm}4.3$ days, p<0.005), 그리고 재발률(14 (9.8%) vs 10 (7.0%), 전체 8.4%, p=0.523), 추적 관찰 기간($48.1{\pm}36.6$ vs $36.5{\pm}24.4$ months)의 차이를 보였다. 결론: 통상적인 방법의 수술보다 자동봉합기 봉합선 보강재를 사용한 군에서 흉관 거치기간과 입원기간에는 장점이 있었으나 재발률에는 영향이 없었다.

• 한국정밀공학회지
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• 제12권7호
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• pp.19-25
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• 1995

Presently, along with the advance of high-technology, the precise measurement of linear displacement has become a staple requirement, and consequently the high resolution with submicron order has also been required in precise positioning and carriaging. In this paper, we advance a propose on a new type of laser encoder based on the principle of phase analysis of the moire fringes from superimposed two gratings. The phase angle as an information of displacement can be accurately calculated by detecting the change in brighness at four points of the fringes. The actual application of four point method to the moire fringes is performed thru microcomputer for general purpose, and the measuring procedure is also studied in this research. As an experimental result, in the case of using 20 .mu. m-pitch gratings, it is validated that this method has the resolution of 0.01 .mu. m and the accuracy of .+-. 0.15 .mu. m over the setting range of 100mm.

• 감성과학
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• 제20권2호
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• pp.117-126
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• 2017

본 연구에서는 직/편물 8종을 대상으로 이들 수직방향과 수평방향 수분이동특성 측정방법에 따른 소재들의 수분이동 특성을 분석하였다. 또한, 8종의 시편의 MMT에 의한 건조특성을 수직 건조 측정 결과와 비교하여 논의하였다. 수평수분이동 방법인 MMT 시험 결과는 수직법인 바이렉 방법의 결과와 유사한 거동을 나타내었다. 대나무, 린넨 및 면/나일론 복합 소재는 드롭법의 흡수시간은 짧았으며, 표면의 낮은 접촉각 및 직물의 높은 다공성에 기인한 것으로 판단되며, 친수성 스테이플 섬유의 구조와 상관이 있을 것으로 보인다. MMT에 의한 건조특성은 니트 및 대나무 직물의 최대 흡수반경이 가장 우수했으며, 수식 건조법에 비해 차이를 나타내었다. MMT 방법의 건조속도는 직물의 두께와 포화수분 흡수율과 높은 상관성을 가졌으며, 회귀계수는 각각 0.9와 0.88이었다. 이는 직물의 두께가 얇을수록 위킹 및 건조특성이 우수하며, 기능성 소재기획시 착용 내구성을 판단하는데 중요함을 의미한다. 또한 상이한 섬유소재, 실 및 구조의 소재에 대한 수분이동특성(위킹, 건조)는 측정 방법에 따라 다른 결과를 나타내었다.

• Nutrition Research and Practice
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• 제4권5호
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• pp.400-404
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• 2010

School lunches serve to improve nutritional status and to promote the health of children. The purpose of this study was to investigate the portion sizes of school lunches served and consumed in Japanese elementary schools. In addition, gender difference in servings and consumption were also studied. A cross-sectional study was undertaken between October 2007 and February 2008 in schools located in Tokyo and Okayama, Japan. A total of 192 fifth-grade children attending four elementary schools participated in this study. Weighed plate waste methods and observation were used to collect dietary data for two non-consecutive days. The proportion of children who chose staple foods along with main dishes and/or side dishes for at least one day was higher in boys than in girls (respectively, for staple food: 42.1% vs. 9.3%, for main dish and/or side dish: 68.4% vs. 44.3%, P < 0.001). The ratio of initial amount served to amount offered was $0.88{\pm}0.11$ for boys and $0.84{\pm}0.10$ for girls (P < 0.05). The ratio of amount consumed to amount offered was $1.04{\pm}0.19$ for boys and $0.88{\pm}0.12$ for girls (P < 0.001). Weight was related to amount consumed both in boys (r = 0.222, P < 0.05) and in girls (r = 0.201, P < 0.05). These findings suggest that the nutritional standards of school lunch programs should take into account gender differences. Clearly, boys were more likely to consume more than the initial amounts served due to their higher propensity to take second helpings. Boys feel few reservations about taking second helpings to adjust their total intake. However, school lunch plans should take into consideration girls' reluctance to do so, by serving appropriate initial portion sizes.

• 한국식생활문화학회지
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• 제38권1호
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• pp.26-37
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• 2023

This study applied the text frequency method to analyze the crops prevalent during the Chosunwangjoshilrok dynasty, and categorized the results by each king. Contemporary perception of grains was observed by examining the staple crop types. Staple species were examined using the word cloud and semantic network analysis. Totally, 101,842 types of crop consumption were recorded during the Chosunwangjoshilrok period. Of these, 51,337 (50.4%) were grains, 50,407 (49.5%) were beans, and 98 (0.1%) were seeds. Rice was the most frequently consumed grain (37.1%), followed by pii (11.9%), millet (11.3%), barley (4.5%), proso (0.8%), wheat (0.6%), buckwheat (0.1%), and adlay (0.05%). Grain chronological frequency in the Choseon dynasty was determined to be 15,520 cases in the 15^th century (30.2%), 11,201 cases in the 18^th century (21.8%), 9,421 cases in the 17^th century (18.4%), 9,113 cases in the 16^th century (17.8%), and 6,082 cases in the 19^th century (11.8%). Interest in grain amongst the 27 kings of Choseon was evaluated based on the frequency of records. The 15^th century King Sejong recorded the maximum interest with 13,363 cases (13.1%), followed by King Jungjo (8,501 cases in the 18^th century; 8.4%), King Sungjong (7,776 cases in the 15^th century; 7.6%).

• 한국의류학회지
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• 제41권1호
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• pp.28-42
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• 2017

Moisture transfer characteristics of high emotional garments are important to evaluate wear comfort. Wicking and drying measurement methods are also critical for perspiration absorption and quick dry fabric made of high functional fibers. In this study, the wicking and drying properties of high emotional fabrics made from hybrid composite yarns using CoolMax, Tencel, Bamboo staple fibers and PP. PET CoolMax filaments were also measured and analyzed according to various measuring methods. The wicking property of hybrid composite yarn fabrics by Bireck method was mostly influenced by the structure of hybrid yarns than the absorption rate of constituent fibers; however, both the hygroscopicity of fibers and the composite yarn structure affected the wicking property of the fabrics in the drop method. Concerning drying properties, the KSK 0815B method measuring distilled moisture weight was more relevant to explain the drying characteristics of hybrid yarn fabrics than the KSK 0815A method measuring the time to drying. This study revealed that the drying properties of hybrid yarn fabrics were influenced by the hygroscopicity of constituent fibers, wicking properties of constituent yarns and structure of composite yarns.

• Journal of Gastric Cancer
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• 제12권2호
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• pp.120-125
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• 2012

Purpose: Mechanical stapler is regarded as a good alternative to the hand sewing technique, when used in gastric reconstruction. The circular stapling method has been widely applied to gastrectomy (open orlaparoscopic), for gastric cancer. We illustrated and compared the hand-sutured method to the circular stapling method, for Billroth-II, in patients who underwent laparoscopy assisted distal gastrectomy for gastric cancer. Materials and Methods: Between April 2009 and May 2011, 60 patients who underwent laparoscopy assisted distal gastrectomy, with Billroth-II, were enrolled. Hand-sutured Billroth-II was performed in 40 patients (manual group) and circular stapler Billroth-II was performed in 20 patients (stapler group). Clinicopathological features and post-operative outcomes were evaluated and compared between the two groups. Results: Nosignificant differences were observed in clinicopathologic parameters and post-operative outcomes, except in the operation times. Operation times and anastomosis times were significantly shorter in the stapler group (P=0.004 and P<0.001). Conclusions: Compared to the hand-sutured method, the circular stapling method can be applied safely and more efficiently, when performing Billroth-II anastomosis, after laparoscopy assisted distal gastrectomy in patients with gastric cancer.