• Bulletin of the Korean Mathematical Society
• /
• v.55 no.1
• /
• pp.311-317
• /
• 2018

Let (R, m) be a commutative Noetherian local ring and I be an ideal of R. In this paper it is shown that if cd(I, R) = t > 0 and the R-module $Hom_R(R/I,H^t_I(R))$ is finitely generated, then $$t={\sup}\{{\dim}{\widehat{\hat{R}_p}}/Q:p{\in}V(I{\hat{R}}),\;Q{\in}mAss{_{\widehat{\hat{R}_p}}}{\widehat{\hat{R}_p}}\;and\;p{\widehat{\hat{R}_p}}=Rad(I{\wideha{\hat{R}_p}}=Q)\}$$. Moreover, some other results concerning the cohomological dimension of ideals with respect to the rings extension $R{\subset}R[X]$ will be included.

• Journal of Mechanical Science and Technology
• /
• v.16 no.1
• /
• pp.32-38
• /
• 2002

The purpose of this study is to analyze the collapse characteristics of widely used spot welded section members (hat and double hat section, nembers of vehicles) which possess the greatest energy absorbing capacity In an axial impact collapse. This study also suggests how the collapse load and deformation mode are obtained under impact. In the program system presented in this study, an explicit finite element code, LS-DY7A3D, is adopted for simulating complicated collapse behavior of the hat and double hat shaped section members with respect to section dimensions and spot weld pitches. Comparing the results with experiments, the simulation has been verified under a velocity of 7.19 m/sec (impact energy of 1034J)

• Communications for Statistical Applications and Methods
• /
• v.2 no.2
• /
• pp.74-84
• /
• 1995

혼합이항모형은 생물학, 혹은 심리학분야에서 많이 다루는 모형이다. 이 혼합모형에서 진단자간의 일치도를 나타내는 k 는 이항모형에 혼합되어지는 사전분포 $\xi$(p)에 따라 다른 형태를 갖는다. 그래서 $\xi$(p)에 의존적이지 않은 모수를 정의 하고, 이에 대한 실증적 추정값 $\hat k$을 일반혼합이항모형에서 k에 대한 추정값으로 사용하였다. 매개모수의 영향을 줄이기 위하여 모수를 직교화하였다. 베타이항모형으로 부터 표본을 추출하여 구한 최우추정값 $\hat k_m$과 이 표본을 이용하여 구한 $\hat k$을 비교하여 본 결과 k와 $\lambda$가 직교하는 영역에서 $\hat k$이 $\hat k_m$보다 편기가 작아지는 경우가 있을 만큼 $\hat k$이 효과적이었다.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
• /
• v.28 no.1
• /
• pp.38-43
• /
• 2017

This study analyzes the role of the Sorting Hat in structuring the identity of the characters in the Harry Potter series written by J. K. Rowling. In the different stages of adolescence, one explores and re-establishes one's identity. One's sense of identity is determined by the commitments made regarding personal and social traits. However, it is difficult to establish a concrete identity formation process theory that is communicable to adolescents. In Harry Potter, the characters' identities are reflected upon the Sorting Hat and are continuously molded throughout the book. The Sorting Hat provides nurturing experiences based on temperament. Based primarily on their temperament, it sorts the students into four houses, each with their own distinct characteristics. Once sorted, the houses become the living and learning communities in which the students share the same dormitory and classes until their graduation. Within the community, the students seek connections, supportive relationships, and understanding within the group. The taking on of the group identity is an explanatory variable in the formation of individual identity. The Sorting Hat provides the students with stability and a safe boundary. After being sorted based on their temperament, the inexperienced and immature adolescents can explore different options under the guidance of the Hat before making a definite commitment. By presenting them with an appropriate environment (such as a mentor, friend, or family member), the Hat further shapes their identity and integrates the identity elements ascribed in the beginning. By providing experiences and interactions based on their unique temperament and environment, the Sorting Hat plays a crucial role in establishing the students' identities. The Sorting Hat can be an ideal model for finding one's identity during adolescence.

• Transactions of the Korean Society of Machine Tool Engineers
• /
• v.15 no.6
• /
• pp.114-120
• /
• 2006

Front-end side members of vehicles are structures with the greatest energy absorbing capability in a front-end collision of vehicles. This paper was undertaken to analyze the energy absorption characteristics of spot welded hat and double hat-shaped section members under the axial collapse. The experiments were performed with respect to the various collapse velocities. It was expected that para-closed sections would show collapse characteristics which be quite different from those of perfectly closed sections. The collapse velocities were selected as follows: the velocities in the hat-shaped section members were 0.00017m/sec, 0.017m/sec, 4.7m/sec, 6.5m/sec, 6.8m/sec, 7.2m/sec, and 7.3m/sec those in the double hat-shaped section members were 0.00017m/sec, 0.017m/sec, 6.5m/sec, 6.8m/sec, 7.2m/sec 7.3m/sec, and 7.9m/sec. In the program system presented in this study, an explicit finite element code, LS-DYNA3D, is adopted for simulating complicated collapse behavior of the hat and double hat-shaped section members under the same condition of the collapse test. The validity of simulation was confirmed by the comparison between the simulation result and the collapse experiment.

• The Research Journal of the Costume Culture
• /
• v.9 no.2
• /
• pp.250-258
• /
• 2001

The objective of this study was to trace and to identify the meaning of jeobli接籬. This word is found as one of the early costume terminologies of China. later the jeobli was introduced to Koguryo. The jeobli of China and Koguryo were included in this study. Sources of information for this research were collected from the written records including visual information from ancient paintings and tumb paintings as well as figurins. The results of important findings and conclusions of this study can be summerized as follows: It was found that the jeobli 接籬 was synonymous with the cheobli 睫離. Also it appeared that it was called baikrosa. It revealed that the word jeobli had different meanings. first, ti was the name of a white hat which was worn by the people of Chin dynasty. It was a white felt hat made of white great plumes and feathers. Second, it was a dialect for maqna, a kind of a veil which was worn by the women of the Northern dynasty. That, it meant the chaikkun, a kind of knot coverings. The jeobli, a kind of a white felt hat, was also used by the people of Koguryo. The jeobli of Koguryo was made of the pig hair from Malgal. It is considered that he shape of this white hat seems to be a kind of conical hat. Also, it was fond that the jeobli as the meaning of chaik kun was worn by the people of Kogure. it was a small white square hat. It was worn by the nobles.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.28 no.3_4
• /
• pp.460-471
• /
• 2004

The purpose of this study is to investigate the effect of hair-style (straight and wave), hair-length(short, medium, and long), and type of hat design (no-hat, beret, cloche, bowler, and capeline) on impression formation. The experimental materials developed for this study were a set of stimulus and response scales. The 7-point semantic differential response scales were designed. Thirty stimuli color pictures of various combination of hair length, hair style, and type of hat design were manipulated by computer drawing. The subjects were 360 undergraduates living in Seoul, Kyunggi and Kyungnam. The experimental design was composed of 3 factorial designs. The result of the study can be summarized as follows; Impression factor of the stimulus consisted of the 5 different dimensions (attractiveness, gracefulness, activity, concentration of attention, cuteness). Hair style greatly affected gracefulness. On the other hand, hair length made remarkable effects on attractiveness, concentration of attention, and cuteness. In addition, it has been found that the type of hat design significantly influenced on all the factors except attractiveness as independent variables. In regarding the effect of interaction between each variable, the combination of hair style and hair length had significant effects on gracefulness. In the impression formation of cuteness, the combination of hair length and type of hat design were more significant.

• Journal of Fashion Business
• /
• v.8 no.2
• /
• pp.116-125
• /
• 2004

In the history of western costume, women's hairstyle and headdress have been fluently studied but men's headgear has not. To study and manufacture headgear designs and details, which indicate varieties in forms and ornaments, can be utilized for the fashion currently in vogue. Purpose: the purpose of the study is to investigate one of the headgear, the hat in terms of shift in design and manufacturing method, and to study through manufacturing in order to do a literature review by era and to provide information as the source in new design. Study method and scope: Like previously manufactured and presented bonnet of women's headdress or headgear, the hat in the study was manufactured on the basis of literature review and portrait analysis. Target era is from the late 16th century to the early 17th century when the hat was used. The hat to be manufactured was selected by investigating the details such as hair style and hat features using literature. The pattern of the selected hat was analyzed, and velvet, silk, and wool were used as the materials as in the literature. Ornaments used similar things as in the photos.

• The Research Journal of the Costume Culture
• /
• v.17 no.6
• /
• pp.1068-1082
• /
• 2009

The purpose of this study was to investigate empirically the consumer behavior regarding the purchase of millinery items in relation to their evaluation criterion and demographic characteristics. The survey was carried out to 395 individuals in their 20s and over who were quota sampled according to age and gender. The collected data were statistically treated with the SPSS 12.0 program in terms of descriptive statistics, cross tabulation, t-test, one-way ANOVA, factor analysis, Cronbach's $\alpha$ coefficient and Duncan-test. The 20s and 50s over were more interested in hat products than other ages. Female consumers obtained the most information about hat products from store visits, TV and magazines. On the other hand, male consumers had it from the acquaintances and internet. Younger consumers more often utilized internet to have it. Their main purchase location was department stores. The younger purchased it more in traditional market, the older purchased it more in mega wholesale market or discount store. The consumers of hat products considered the intrinsic classification most when buying hats. The evaluation criteria employed by them were aesthetics, quality, and external attributes. Hat consumers were more concerned about aesthetics attributes than the other two criteria. Female consumers and consumers who are more interested in the hat and have a higher level of education and income considered aesthetics attributes most important.

• The Research Journal of the Costume Culture
• /
• v.14 no.1
• /
• pp.64-78
• /
• 2006

The purpose of this study is to set a characteristic design by analyzing formative properties for the hat and fashion image shown in fashion collections from the S/S season of 1998 to the F/W season of 2004 in recent seven years. For the study, the 96 stimuli which found frequently in fashion collection were selected. The examines for the image evaluation were women college students majoring fashion design related fields and living in Seoul, Gyeonggi-do, and Gyeongsangnam-do. Data collection was performed in August 2004. As statistical methods for data analysis, internal consistency method, Factor Analysis, MANOVA were used. Based on the analysis of 31 pairs of adjectives for elucidating the total 96 stimuli which were devised by altering the types of garment, the relation between a garment and a color of hat, the types of hat, the length of hair, and the material and design of garment, five factors or attractiveness, gracefulness, concentration, cuteness, and hardness and softness were deduced. And it showed much difference in the types of garment, the relations between a garment and a color of hat, the types of hat, the length of hair, and the material and design of a garment.