• 패션비즈니스
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• 제12권2호
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• pp.87-99
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• 2008

This study aims to classify lower trunk body types of Chinese men in their middle age (30s and 40s) and suggest the standard for them to design slacks pattern. Mollison's relation deviations were used to analyze the direct measurement items in this research compared to those of Size Korea 2004. Though Korean middle-aged men were higher in most items than Chinese counterparts, all items except mid-thigh circumference and side hip length were merely within the range of ${\pm}1\sigma$. According to the results of size classification by absolute values, factor analysis extracted to 2 factors(horizontal size of lower body and vertical size of lower body), and cluster analysis brought about 3 types(type1: tall and thin trunk (36.9%), type 2 : normal height and thick trunk(45.5%), and type 3 : short and normal trunk(17.6%) with some significant differences among them. Also, the results of shape classification by index values, they were extracted 4 factors (waist-hip flatness, waist-hip cross section, vertical waist-groin and hip-surface length) by factor analysis and revealed 3 types(type 1: different waist-hip width, thick, long waist, long upper hip, and short hip-surface length(27.8%), type 2 : different waist-hip width, flat, short upper hip, high hip and groin, and average hip-surface length(29.4%), and type 3: small waist-hip width, thick, average upper hip, and short hip-surface length (42.8%)) with significant differences among them by cluster analysis. The results of standard body types by shape-size combination, 19subjects(10.16%) under these values are regarded as standard body types. Significance was not seen in all items in the t-test results between the total group and the standard group. The latter had lower variation coefficients and smaller individual differences than the former. However, in-depth research is required for generalization since this research is limited to a small number of subjects in Ningbo of Zhejiang.

• 한국수산과학회지
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• 제56권5호
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• pp.708-715
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• 2023

Hybridization is a major production method used to combine beneficial traits from two different species to obtain a potentially dominant trait. In China, Takifugu obscurus and T. rubripes were artificially crossed, and the resulting hybrids had an average body weight 38.06-8.93% higher than that of the parental species, which enabled the hybrids to be grown in freshwater. This study aimed to provide the basic data necessary for the classification of T. obscurus♀×T. rubripes♂ hybrids in terms of economic value and market potential. Morphological comparing the morphology of hybrids and parental species, we discovered that the hybrids had intermediate traits of the parental species. In morphometrics, the hybrid index (HI) value of head length against standard length was close to the trait of T. rubripes, and the HI values of preanal length and predorsal length were close to those of T. obscurus; however, the HI values of nasal length, snout length, length of anal fin, length of pectoral fin, caudal peduncle depth and caudal peduncle length were found to be unique characteristics of the hybrids. Regarding molecular analysis, a 99.8% nucleotide sequence similarity was found between the hybrid and T. obscurus.

• 대한가정학회지
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• 제38권1호
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• pp.1-8
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• 2000

In this study 61private brand skirts and 67 brand name skirts were compared to see if the skirts from the different markets were suitable for both comfort and movement. The researcher chose size 66 skirts with a waist circumference of 68~70cm and hip circumference of 92cm. The resets are as follows. (1) In the waist measurement, the minor brand skirts were made at the maximum measurement (70cm) and the department store brand skirts were at the minimum (68cm). (2) Compared with the standard back split length of 9cm for a 48cm-long skirt, the minor brand skirts had a split of only 4.5cm, while the department store brand skirts were 3cm less (split length-6cm). From this result, we see that both of them are less practical than they are supposed to be (3) For the department store skirts, the hip circumference and waist circumference show a significant correlation to skirt length (p<0.05) and back split length (p<0.001). Larger waist & hip measurements equal longer split length. For the minor brand skirts, the length of the split shows a significant correlation to the depth of the hem-line Shorter split equals smaller hem depth. From these results, it can be concluded that the two groups of skirts do not differ except for back split length and waist circumference, but regarding the split length, both of them should be modified for else of movement and comfort.

• 대한조선학회논문집
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• 제28권1호
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• pp.182-188
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• 1991

구조물의 비선형 거동을 추적 조사하는 비선형 유한요소 해석에서 하중증분을 사용하는 Newton-Raphson방법은 임계점 근처에서는 수렴이 안되는 단점을 갖고 있으므로 구조물의 거동이 심한 비선형 경로(nonlinear path)를 포함하고 있는 구조물의 거동을 조사하기 위해서는 Newton-Raphson 방법의 부가적인 수정이 필요하다. Newton-Raphson 방법의 수정보완 방법으로 Riks에 의해 제안된 구속조건식을 사용하여 반복계산하는 arc-length method로써 접선강성벡터에서 수직인 방향으로 접근하는 방법(normal arc-length method)과 접선강성벡터가 원호를 그리며 비선형 경로에 접근해 가는 방법(cylindrical arc-length method)을 사용하였으며 또한 각 단계에서 비선형의 정도에 따라 arc-length를 조절하는 자동하중 증분법을 사용하였다. 비선형 수치해석의 예로 경사진 외팔보, 단순 아치구조, 쉘 구조 및 편심 보강평판의 비선형 거동을 추적 조사하였다.

• 한국진공학회지
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• 제8권1호
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• pp.31-35
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• 1999

본 연구에서는 반도체 소자에서 일렉트로마이그레이션에 기인하는 Al-1%Si 박막배선의 길이 변화에 따른 수명시간 의존도를 조사하였다. 사용된 Al-1%Si 박막배선은 표준 사진식각 공정(standard photolithography process)을 사용하여 제작된 직선형 패턴이다. 직선형 패턴은 100에서 1600 $mu extrm{m}$ 범위의 길이 변화를 갖도록 제작하였다. Ti underlayer가 없는 시편보다 Ti underlayer가 있는 시편에서 Al-1%Si 박막배선의 수명시간이 더 길게 나타났다. Ti underlayer를 갖는 시편에서 electromigration에 대한 저항성을 향상시키는 것으로 사료되어진다. Al-1%Si 박막배선의 길이에 의존하는 수명시간은 800$\mu\textrm{m}$ 이하에서 포화되는 경향을 나타내었다.

• 한국안전학회지
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• 제20권1호
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• pp.62-67
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• 2005

An eccentrically-loaded single edge crack tension specimen (ESET) is similar to a compact tension(CT) specimen loaded in tension-tension. The standard ESET specimen exhibits advantages over other types of cracked specimen, such as n, single-edge crack, and middle-crack tension specimen. The details of ESET specimen configuration, test procedure, and calculations are described in ASTM E647 standard. However, a difficulty in attaching COD gage to the knife-edge on the front foe of the specimen can be found when the size of ESET specimen is small for rapid cooling and heating in thermal fatigue testing. The finite element analysis is performed for the ESET specimen with projected knife-edge on the front foe and a crack-length-compliance equation is suggested for the new specimen configuration. Calibration test are conducted with 347 stainless steel to compare the measured crack length with the calculated crack length from the suggested compliance expression. The test results showed good agreements with those of analysis.

• 대한가정학회지
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• 제24권3호
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• pp.43-50
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• 1986

This study is toidentify what makes people uncomfortable when people wear new shoes and to gain fundamental data for establishing shoe sizes. Data materal from the 16 measurement investigation conducted on 796 college girl students shows the following. 1) More than 96% of the subjects have experienced footache when they wore new shoes. It is significant that 45.76% of the subjects answered shoe width, especially pump-lining part cause them to feel more pain in their feet than any other measurement elements. 2) According to multiple correlation analysis to know which parts of feet determine shoe size, both multiple correlation coefficient of feet length to other parts of foot and joint girth to other parts of foot show the highest of R=0.93. 3) According to the ANOVA-tested result of estimated function when both foot-length-joint girth and foot length-joint girth-foot width are independent variables in each case, the level of α〈0.001 is very significant. 4) The comparision between KS G3116 adult women's shoe size establishment table and my table in this study reveals that the cases of more increased joint girth measurements than standard joint girth measurements in KS G 3116 table are easy to find.

• 한국철도학회논문집
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• 제9권1호
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• pp.102-109
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• 2006

The PSC girders which currently used at highway bridge have the standard cross sections about 25m, 30m and 35m span. Thus, in case of highway bridge design, the bridge designer can choose the adequate standard cross section according to constructional condition. However, in railway bridge design, there are limitations on reasonable bridge design considering circumstances of a construction site and conditions of location etc, because the PSC girders used at railway bridge have the cross section about only 25m span length. In this study, the optimum design for the PSC girder railway bridge with 30m span length has been performed. Also, in order to investigate the dynamic stability of railway bridge using the optimum section of PSC girder, dynamic analysis has been carried out. From the results of analysis, it is suggested to denote the optimum section which satisfied the structural safety, dynamic stability and economical efficiency all together.

• 한국통신학회논문지
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• 제33권2C호
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• pp.173-177
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• 2008

본 논문에서, 우리는 다수의 짧은 주기들을 추가함으서 LDPC 부호의 성능을 향상시킨다. 짧은 주기, 특히 길이가 4인 주기는 만약 표준 BP 복호가 쓰인다면 LDPC 부호의 성능을 저하시킨다. 그래서 현재의 연구들은 성능 높은 LDPC 부호를 설계하기 위하여 길이가 4인 주기들을 없애는데 초점을 맞추고 있다. 우리는 만약 수정된 BP 복호를 사용하면 다수의 길이가 4인 주기들은 LDPC 부호의 성능을 향상 시키는 것을 발견했다. 본 논문에서는 다수의 짧은 주기들을 가진 LDPC 부호를 위한 수정된 BP 복호 알고리즘이 소개되고 또한 다수의 짧은 주기들을 가지는 LDPC 부호의 수정된 BP 복호성능이 짧은 주기를 가지지 않는 LDPC 부호의 표준 BP 복호 성능보다 우수함을 보였다.

• Korean Journal of Acupuncture
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• 제25권4호
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• pp.49-58
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• 2008

Objectives and Methods : The present study was to investigate the change of acupuncture point location of gallbladder meridian in head by way of reviewing classical literatures. Result and Conclusions : 1. The locations of acupuncture points closed-by anatomical marks such as GB1, GB2, GB3, GB11, GB12, GB19, GB20 are clear and accurate. 2. The expression of acupuncture points' locations of GB4, GB5, GB6, GB8 and GB10 are obscure in classical literature, but their locations became clear and objective in recent literatures. 3. The locations of GB9 and GB13 are open to dispute but WHO standard acupuncture point seems to be resonable. 4. In classical literature, the length from the midpoint of the anterior hairline to the midpoint of the posterior hairline is 12 B-cun, and the length from the midpoint of the anterior hairline to the GB19 is 5 cun, 5.5 cun or 6.5 cun. We presume that the length from GB15 to GB19 might have been measured by F-cun.