• 대한전기학회논문지
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• 제38권5호
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• pp.380-387
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• 1989

The Conventional-Anti-reset-Windup (CAW) structure gives pretty good performance among the conventional strategies that prevent systems from saturation, but there is no systematic way of designing the control systems. Also, it frequently destabilizes the systems. Moreover, the CAW structure cannot be applied when the output of the saturating actuator cannot be measured. Therefore the CAW structure is modified to accommodate this situation. An effective designing method is proposed to give better performance of the control system. The stability of the control system is also considered. The usefulness of the proposed method is shown by applying this method to a few examples.

• 한국수자원학회논문집
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• 제57권3호
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• pp.165-179
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• 2024

도시 지역의 홍수 위험을 완화하고 지속 가능한 수자원을 관리하기 위해서는 도시 홍수와 물순환의 연계 해석이 필수적이다. 본 연구는 간단한 전환 규칙을 통해 침수의 시공간적 변화를 모의하는 셀룰러 오토마타 기법을 이용하여 고해상도 도시침수 및 물순환 해석 모형 CAW (Cellular Automata-based integrated Water cycle model)를 개발하고, 그 적용성을 평가하였다. 개발된 모형을 미국 포틀랜드 도심지 유역에 적용하고, 물리 기반 모형 및 기존 셀룰러 오토마타 기반 모형의 침수 해석 결과와 비교하여 도시침수 재현의 적절성을 평가하였다. 연구 결과, 침수 검증 대상 지점에 대한 CAW 모형의 최대 침수심 분포는 확산파 방정식을 모사하는 WCA2D (Weighted Cellular Automata 2 Dimension) 모형과 평균오차 값이 1.3 cm로 유사하게 모의되었고, 이진 패턴 유사도 검증에서 HR 0.91, FAR 0.02, CSI 0.90으로 비교적 높은 유사성을 나타내며 모형의 침수 해석 적용성을 검증하였다. 또한, 토지피복 및 토양 조건이 침수, 침투에 미치는 영향을 시험 평가한 결과, 불투수율이 41% 더 높은 지역에서의 침투와 최대 침수심이 각각 54%(4.16 mm/m²) 감소 및 10%(2.19 mm/m²) 증가하였다. CAW 모형을 이용하여 도시 유역의 다양한 토지피복 및 토양 특성을 고려한 고해상도 물순환 및 도시침수 연계 모의 해석이 가능할 것으로 기대된다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.829-834
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• 2003

Many types of omnidirectional wheels with passive rollers have gaps between rollers. Since these gaps cause a wheel to make discontinuous contact with the ground, they lead to vertical and/or horizontal vibrations during wheel operation. In addition, the radii of passive rollers are related to the height of a bump an omnidirectional wheel can surmount. In this research a new design of the alternate wheel is proposed. Because this wheel makes continuous contact with the ground and has alternating large and small rollers around the wheel, it is termed a continuous alternate wheel (CAW). In this paper a design procedure is also presented to determine the optimum number of rollers, the radii of rollers and the inside inclination angle of an outer roller for given design specifications. The CAW based on this design is compared to the existing alternate wheels in terms of design. Finally, an actual continuous alternate wheel is constructed to verify validity of the design guidelines.

• 동아시아식생활학회지
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• 제1권3호
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• pp.259-276
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• 1991

The review of side dishes, oereal dishes and seasonings of the banquet on the 24th year of King Kojong in Chosun Dynasty were summarized as follows: 1. Ten kinds of soups(=Tang), that is Yyolguja Tang$.$Guja Tang$.$Keumjung Tang$.$Whanja Tang$.$Jap Tang$.$Gol Tang$.$Seunggiwa Tang$.$Jeopo Tang$.$Haesam Tang$.$Yang Tang were served. The most frequently served soup among them was Yyolguja Tang. 2. Various kinds of dried meat/fish were piled up most highly among dishes. Sliced beef and minced beef among dried meats, white cud$.$yellow cud$.$flatfish$.$skate$.$shark$.$octopus$.$dried abalone$.$cuttle fish$.$dried scallop were piled up together. 3. Sliced of boiled beef/pork and gelatined knuckles were assorted. Boiled meat which was made of beef, pork, lamb, liver, stomach, brisket and plat flank of caw was chiefly used for boiled beef, hams for boiled pork, mediumsized lamb for boiled lamb. And the legs and stomach of caw, old chicken, mullet were used for gelatined knuckle. 4. Three kinds of pan-frying dishes that was stomach and liver of caw, and mullet were usually piled up, If one kind in one dish, sea cucumber and mullet were used respectively. 5. Boiled abalone was dried abalone with soaked, sliced and boiled down in soysauce. 6. Roasted dish was usually made of assorted food stuffs. Sometimes chicken an pheasant was used for roasted dish. 7. Steamed dish was like this : assorted beef, fresh abalone, sea cucumber, mullet, young pork, chicken, dried abalone. 8. Raw dish was made of intestine of caw, fresh abalone and mullet. 9. Poached egg was serving decorated with red pepper, pine-nut and green onion. 10. Seasoned green-been-jelly was served only one time. 11. Radish kimchi was served only one time. 12. Chief foods were nuddle and stuffed bun. 13. Served seasings were honey, mustard, soysauce with vinegar, salt. Review from banquet menu, 34 kinds of side dishes were served : 10 kinds of soup, dried fish/meat, boiled beef, boiled pork, gelatined knuckle, 5 kinds of panfrying, boiled-down-abalone in soysauce, 3 kinds of roast, 5 kinds of steamed, 3 kinds of raw dishes, pouched egg, green-bean-jelly, kimchi. 4 kinds of chief foods were served : nuddle, dry nuddle, 2 kinds of dumping.

• 한국의상디자인학회지
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• 제12권3호
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• pp.43-55
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• 2010

The major advantages to use CAD System are that it reduce time and effort to manufacture products, and also can demonstrate the condition of the final product prior to the actual manufacturing process of the selected design using the simulation programs in CAD system. Specially in weave design, for use as Computer-Aided Weaving system, the complicated Dobby weave can figured out easily through calculating the complex weave plans of multi shafts. As to one of dobby weave structures, Supplementary warp is the warp threads which are in addition to the regular warps of the woven fabrics, and used for decorating the band or expressing some patterns. The purpose of this study is to research the weave design of Supplementary warp using Computer-Aided Weaving system, which is dobby weave design program of Weave Point. For performing this design study, it was researched the classified woven fabrics depending upon weaving processing, Computer-Aided Weaving system, and the characteristic of Supplementary warp fabrics. On the basis of the theoretical research, Supplementary warp was worked for the 24-shafts AVL computer dobby loom that applied to the various patterned images. The design work was done by Weave Point program of dobby weave, and simulated to fabrics before woven into the computer dobby loom. To see the visual images of fashion items, these simulated bobby fabrics were processed by three-dimension modeling through YoungWoo CNI CAD system. All the patterns of the Supplementary warp in this study could be applied for decorating the fashion clothing and accessories.

• 한국공작기계학회논문집
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• 제12권3호
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• pp.75-81
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• 2003

Pocket machining is metal removal operation commonly used for creating depressions in machined parts. Numerically controlled milling is the primary means for machining complex die surface. These complex surfaces are generated by a milling cutter which removes material as it traces out pre-specified tool paths. To machine, a component on a CNC machine, part programs which define the cutting tool path are needed. This tool path is usually planned from CAD, and converted to a CAM machine input format. In this paper I proposed a new method for generating NC tool paths. This method generates automatically NC tool paths with dynamic elimination of machining errors in 2$\frac{1}{2}$ arbitrary shaped pockets. This paper generates a spiral-like tool path by dynamic computing optimal pocket of the pocket boundary contour based on the type and size of the milling cutter, the geometry of the pocket contour and surface finish tolerance requirements. This part programming system is PC based and simultaneously generates a G-code file.

• 치과방사선
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• 제4권1호
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• pp.11-20
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• 1974

The author conducted an experiment using P-A Cephalography of 242 male and female subjects of ages ranging 2-6, 7-15, and adult group. By means of Nakago's method of measurement, the standard value of Korean was obtained. The results were as follows; 1. In the group of an age, the male value was greater slightly than female value. 2. In each age group the difference between the right and left widths could be recognizable, however, it was not much great. 3. In each group, regardless of sex, the growth relation was clearly distinguishable at PO, ARI, ARE, MG, AG, and CAW. 4. When the standard value of adult Korean was compared with that of Japanese, Japanese was great with respect to the width of maxillary portion and Korean was great with respect to the width of mandibular portion. 5. Maximum head width of white man was almost similar to that of Korean, however, maxillary alveolar base width of white man was considerably small or the dental arch was narrow.

• 한국사회복지학
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• 제66권3호
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• pp.55-73
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• 2014

본 연구의 목적은 한국판 농인 문화적응 척도를 개발하는 것이다. Maxwell-McCaw와 Zea(2011)의 농인 문화적응 척도(Deaf Acculturation Scale)를 국내 농인에 적절하게 번안하여 예비문항을 만들었다. 척도는 농문화적응과 청인문화적응, 두 가지 하위척도로 구분하여 농인들의 문화적응을 측정하도록 구성되었다. 최종적으로 농문화적응 하위척도 25문항, 청인문화적응 하위척도 25문항으로 구성된 한국판 농인 문화적응 척도가 개발되었다. 농문화적응 하위척도 4개의 요인, 청인문화적응 하위척도 5개의 요인으로 구성되었다. 개발된 척도의 내적 일관성 계수인 Cronbach's ${\alpha}$는 농문화적응 하위척도가 .93이었고, 청인문화적응 하위척도가 .93로 높은 값을 보였다. 선행연구를 통해 농문화적응과 관련이 있다고 판단된 연령, 청각장애 시기와 장애 급수와의 상관분석을 통해 공존타당도를 검증하였으며, 집단 자아존중감 척도(Collective Self-Esteem Scale)와의 상관분석으로 구성타당도를 검증하였다. 논의에는 본 연구의 의의 및 제한점과 후속 연구 방향을 제시하였다.

• Asian-Australasian Journal of Animal Sciences
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• 제20권1호
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• pp.7-11
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• 2007

The study was conducted on 162 adult male Haemonchus contortus of sheep collected from Avikanagar, Jaipur and Bikaner regions to diagnose the benzimidazole (BZ) resistance in H. contortus. The BZ resistance is primarily linked with the mutation in ${\beta}$-tubulin isotype 1 gene which substitute phenylalanine (Phe) into tyrosine (Tyr) at the 200 codon of the gene. An allele specific polymerase chain reaction (AS-PCR) technique was used for diagnosis of BZ resistance in H. contortus. In AS-PCR, one reverse primer (TGG 312) was used in two separate reactions with each of 2 forward primers (resistant TGG 331 and susceptible CAW 106 primer) that differed only at 3' nucleotide position. Therefore, the amplified products from resistant and susceptible parasites were produced 267 and 266 bp, respectively. A total of 162 parasites were genotyped, of which 130 parasites found homozygous resistant 'rr', 22 heterozygous 'rS' and 10 homozygous susceptible 'SS' type. The prevalence of 'rr' individuals was higher in Jaipur (98%) followed by Avikanagar (93%) and Bikaner (50%) regions. Overall, the prevalence of BZ resistant allele (r) was higher (87%) as compared to 13% of BZ susceptible allele (S).

• 한국가스학회:학술대회논문집
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• 한국가스학회 2002년도 춘계학술발표회 논문집
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• pp.111-121
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• 2002

천연가스 수송배관은 매설환경시의 방식 및 외부충격 등에 대비하여 배관을 보호할 목적으로 폴리에틸렌(polyethylene)으로 피복(coating)되어 있다. 가스배관이 전국으로 확장됨과 더불어 배관피복 기술도 초기 사용하던 1층(one-layer), 2층피복으로 발전되어 현재는 3층피복시스템을 적용한 배관들이 전국에 매설되고 없다. 그러나 강관에 적용된 폴리에틸렌 피복이 경우에 따라 장기간 사용에 따른 자연균열등이 발생하여 피복의 안정성에 문제를 일으키기도 하므로, 그동안 전국에 매설되어있는 배관 피복재들의 물성변화 여부를 확인하여 천연가스수송용 배관의 내성 데이터베이스를 구축, 향후 배간운영의 신뢰성 평가에 참고하고자 하였다. 이를 위하여 선진외국에서 폴리에틸렌 배관의 내구성과 장기사용 안정성 평가를 위해 오래전부터 활용되고 있는 저속균열저항성(slow crack growth resistance : SCGR) 측정과 배관 피복층의 산화유도시간(OIT : oxidation induction time)을 측정하여 국내 배관 피복재들의 내구성을 평가하고 이를 근거로 하여 국내사용판정에 적합하고 수출도 고려한 폴리에틸렌 물성치의 목표값을 제안하였다.