• Title/Summary/Keyword: TIM

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Effect of Thermal Grease on Thermal Conductivity for Mild Steel and Stainless Steel by ASTM D5470 (ASTM D5470 방법으로 연강과 스테인리스강의 열전도도 측정시 열그리스의 영향)

  • Cho, Young-Wook;Hahn, Byung-Dong;Lee, Ju Ho;Park, Sung Hyuk;Baeg, Ju-Hwan;Cho, Young-Rae
    • Korean Journal of Materials Research
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    • v.29 no.7
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    • pp.443-450
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    • 2019
  • Thermal management is a critical issue for the development of high-performance electronic devices. In this paper, thermal conductivity values of mild steel and stainless steel(STS) are measured by light flash analysis(LFA) and dynamic thermal interface material(DynTIM) Tester. The shapes of samples for thermal property measurement are disc type with a diameter of 12.6 mm. For samples with different thickness, the thermal diffusivity and thermal conductivity are measured by LFA. For identical samples, the thermal resistance($R_{th}$) and thermal conductivity are measured using a DynTIM Tester. The thermal conductivity of samples with different thicknesses, measured by LFA, show similar values in a range of 5 %. However, the thermal conductivity of samples measured by DynTIM Tester show widely scattered values according to the application of thermal grease. When we use the thermal grease to remove air gaps, the thermal conductivity of samples measured by DynTIM Tester is larger than that measured by LFA. But, when we did not use thermal grease, the thermal conductivity of samples measured by DynTIM Tester is smaller than that measured by LFA. For the DynTIM Tester results, we also find that the slope of the graph of thermal resistance vs. thickness is affected by the usage of thermal grease. From this, we are able to conclude that the wide scattering of thermal conductivity for samples measured with the DynTIM Tester is caused by the change of slope in the graph of thermal resistance-thickness.

Development of TIM Module for Construction PDM (PDM 구축을 위한 TIM 모듈개발)

  • 이승우;송준엽
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2001.04a
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    • pp.307-310
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    • 2001
  • In this paper, development of TIM Module for constructing PDM will be introduced. Technical information relevant product data influences cost, quality, precision and productivity. One of the very important feature of product data is organizing not by oneself but very closed to many technical information such as document, file, image and analysis sheet. To manage various technical information, several kinds of management system are used in multi level of production system. PDM and TIM systems are being developed for suitable purpose and are in need of Network technology, Information Technology, Database, sharing and distributing information. Developed TIM system is based on Web environment. By using this system, we can manage systematic technical information and reduce cost for constructing PDM system. And also we will put to practical use another technical information management system for mold plant.

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T-Cell Immunoglobulin Mucin 3 Expression on Tumor Infiltrating Lymphocytes as a Positive Prognosticator in Triple-Negative Breast Cancer

  • Byun, Kyung Do;Hwang, Hyo Jun;Park, Ki Jae;Kim, Min Chan;Cho, Se Heon;Ju, Mi Ha;Lee, Jin Hwa;Jeong, Jin Sook
    • Journal of Breast Cancer
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    • v.21 no.4
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    • pp.406-414
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    • 2018
  • Purpose: T-cell immunoglobulin and mucin domain-containing molecule 3 (TIM-3) is an emerging immune response molecule related to T-cell anergy. There has been tremendous interest in breast cancer targeting immune checkpoint molecules, especially in the triple-negative breast cancer (TNBC). This study was designed to investigate TIM-3 expression on tumor infiltrating lymphocytes (TILs), its relationships with clinicopathological parameters and expression of programmed death receptor 1 (PD-1)/programmed death receptor ligand 1 (PD-L1), and its prognostic role. Methods: Immunohistochemistry on tissue microarray blocks produced from 109 samples of invasive ductal carcinoma type TNBC was performed with antibodies toward TIM-3, PD-1, PD-L1 and breast cancer-related molecular markers. Associations between their expression and clinicopathological parameters as well as survival analyses were performed. Results: TIM-3 was expressed in TILs from all 109 TNBCs, consisting of 17 cases (<5%), 31 cases (6%-25%), 48 cases (26%-50%), and 13 cases (>51%). High TIM-3 was significantly correlated with younger patients (p=0.0101), high TILs (p=0.0029), high tumor stage (p=0.0018), high PD-1 (p=0.0001) and high PD-L1 (p=0.0019), and tended to be associated with higher histologic grade, absence of extensive in situ components and microcalcification. High TIM-3 expression was significantly associated with a combinational immunophenotype group of high PD-L1 and high PD-1 (p<0.0001). High TIM-3 demonstrated a significantly better disease-free survival (DFS) (p<0.0001) and longer overall survival (OS) (p=0.0001), together with high TILs and high PD-1. In univariate survival analysis, high TIM-3 showed reduced relapse risk (p<0.0001) and longer OS (p=0.0003), together with high PD-1 expression. In multivariate analysis, high TIM-3 was statistically significant in predicting prognosis, showing better DFS (hazard ratio [HR], 0.0994; 95% confidence interval [CI], 0.0296-0.3337; p=0.0002) and longer OS (HR, 0.1109; 95% CI, 0.0314-0.3912; p=0.0006). Conclusion: In this study, we demonstrate that TIM-3 expression is an independent positive prognostic factor in TNBC, despite its association with poor clinical and pathologic features.

The Goth Style Expressed on Costumes of Tim Burton's Films (팀 버튼 영화 의상에 나타난 고스(Goth) 스타일)

  • Jung, Eunyoung;Lee, Younhee
    • Journal of the Korean Society of Costume
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    • v.64 no.8
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    • pp.20-36
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    • 2014
  • This research aims to identify and analyze the expression elements and features of Goth style observed in clothing of unique characters in movies directed by Tim Burton, and to build the database on diverse features movie costumes, so that such data can be used to develop new fashion design. The research-classified features of Goth style into romanticism overturns Satanism, grief, and sensuality. The results are as follow; First, Goth expressed romanticism by reminding the gloom and fear of medieval times through the image of clowns, medieval knights, werewolves and vampires. Second, The costumes in Tim Burton's movies overthrew the rules in reality using flexible changes, ambiguity of gender, distorted human beings, half-man-half-beasts, and ghost images. Furthermore, the positive expression on characters in gloomy and fearful costumes showed the overturn of common idea and value system in a society. Third, Tim Burton created fear using the image of a live dead body, shape of a devil, shape of death. Also, accessories suddenly changed into arms in his movies. He expressed Satanism by positively describing satanic shapes and shapes meaning death. Next, characters in Tim Burton's movies are mainly losers, aliens or outsiders. Sorrow, alienation and darkness inside them expressed the sadness through embodiment of mean animals in darkness, masks, veils and extreme black costumes. Finally, Sensuality was rarely shown in Tim Burton's movies, but expressed in various ways including pursuit of new beauty in excessive exposure, skintight silhouette, suggestion on sexualized violence and frightfulness.

Improved Thermal Resistance of an LED Package Interfaced with an Epoxy Composite of Diamond Powder Suspended in H2O2 (과산화수소 적용 TIM의 LED 패키지 열특성 개선효과)

  • Choi, Bong-Man;Hong, Seong-Hun;Jeong, Yong-Beom;Kim, Ki-Bo;Lee, Seung-Gol;Park, Se-Geun;O, Beom-Hoan
    • Korean Journal of Optics and Photonics
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    • v.25 no.4
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    • pp.221-224
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    • 2014
  • We present a method for manufacturing a TIM used for packaging a high-power LED. In this method a mixture of diamond powder and hydrogen peroxide is used as a filler epoxy. The thermal resistance of the TIM with hydrogen peroxide was improved by about 30% over the thermal resistance of the TIM without hydrogen peroxide. We demonstrate that as a result the heat generated from the chip is easily dissipated through the TIM.

Post-modern Characteristics Expressed on Characters' Make-up Coordination of Fantasy Movies - Focused on the works of Tim Burton - (판타지 영화의 캐릭터 분장 코디네이션에 나타난 포스트모던 특성 - Tim Burton 감독의 작품을 중심으로 -)

  • Chang, Mee-Sook
    • Fashion & Textile Research Journal
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    • v.11 no.2
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    • pp.219-230
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    • 2009
  • The purpose of this paper is to study characters' make-up coordination that changes the narrative of the fantasy movies to a visual fantasy, especially it focuses on the post-modern features from the works of Tim Burton, a post-modernist. The contents of the study are, firstly, studying post-modernism that influenced the works of Tim Burton, secondly, researching (1988), (1989), (1990), (1992), (2003) and (2005) and their main characters' make-up design. Thirdly, analyzing the otherness and plural-code that are the post-modern characteristics expressed on characters' make-up coordination of fantasy movies. The otherness means the division of the middle and the surroundings and the rise of the outsiders. Fantasy characters that scares off human such as ghosts, aliens, apes, kidults, mutations, man-made men are in the middle. The plural-code takes the symbolic and pluralistic dimension in to the movie, mixes the sign system, and which natural and supernatural system cross over. In the movies, Beetle Juice who was both ghost and devil expresses life and death, Bat man, Cat woman, Penguin man expresses human and animal, and Edward means human and inhuman. Willy Wonka's makeup makes him look younger, but his grown-up-like clothes show doubleness. For that matter, make-up coordination is the mirror of reflection of period and human being's inner life.

Study on Improvement of Heat Dissipation Characteristics of TIM Material Using Radiant Energy (복사에너지를 이용한 TIM소재의 방열 특성 향상을 위한 연구)

  • Hwang, Myungwon;Kim, Dohyung;Jung, Uoo-Chang;Chung, Wonsub
    • Journal of the Korean institute of surface engineering
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    • v.52 no.2
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    • pp.58-61
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    • 2019
  • The aim of this study is to quantitatively demonstrate the possibility of heat transfer by thermal radiation by comparing heat transfer by conventional heat transfer and radiation by radiation. 1) The heat transfer was measured by using filler of TIM material with low thermal conductivity (CuS). As a result, heat transfer was easier than ceramic with high thermal conductivity ($Al_2O_3$ and $Si_3N_4$). 2) The reason for this is thought to be that the infrared wave due to radiation of the air diaphragm has moved easily. 3) From the above results, the heat dissipation of the TIM material indicates the possibility of heat transfer by thermal radiation.

A Study of Tim Burton's Lighting Style and Visual Storytelling (팀 버튼의 조명 스타일과 비주얼 스토리텔링 연구 - '크리스마스의 악몽'을 중심으로 -)

  • Lee, Jee-Eun
    • Cartoon and Animation Studies
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    • s.11
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    • pp.137-151
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    • 2007
  • This study is based on Tim burton's 'The nightmare before christmas' and analyzation was made to see how he used lights and to understand his unique color visual story telling style. The analyzation revealed that Tim burton used second class hollywood movies of $1930{\sim}60's$ and classical lighting style. He used this lighting style in 'The nightmare before christmas' as a really strong visual structure which substantially attributed to maintains it's fantastic mood consistently.

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A study on the Oversampling A/D Converter with TIM Structure designed by the bilinear transform (쌍선형 변환을 이용한 TIM 구조를 갖는 과표본화율의 A/D변환기에 관한 연구)

  • Park, Chong-Yeon;Sin, Jong-Wook
    • Proceedings of the KIEE Conference
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    • 1998.07g
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    • pp.2411-2413
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    • 1998
  • In this paper, using tile concept of block digital filtering, and the design procedure of time-interleaved oversampling converter are presented. it is shown that arbitrary sigma-delta A/D converter can be converted into corresponding time-interleaved structure. The TIM structure of this paper is designed by the bilinear transform. To verify the simulation results, a second-order TIM structure A/D converter has been implemented and the design process as well as experimented results are presented.

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Prediction of 305 Days Milk Production from Early Records in Dairy Cattle Using an Empirical Bayes Method

  • Pereira, J.A.C.;Suzuki, M.;Hagiya, K.
    • Asian-Australasian Journal of Animal Sciences
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    • v.14 no.11
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    • pp.1511-1515
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    • 2001
  • A prediction of 305 d milk production from early records using an empirical Bayes method (EBM) was performed. The EBM was compared with the best predicted estimation (BPE), test interval method (TIM), and the linearized Wood's model (LWM). Daily milk yields were obtained from 606 first lactation Japanese Holstein cows in three herds. From each file of 305 daily records, 10 random test day records with an interval of approximately one month were taken. The accuracies of these methods were compared using the absolute difference (AD) and the standard deviation (SD) of the differences between the actual and the estimated 305 d milk production. The results showed that in the early stage of the lactation, EBM was superior in obtaining the prediction with high accuracy. When all the herds were analyzed jointly, the AD during the first 5 test day records were on average 373, 590, 917 and 1,042 kg for EBM, BPE, TIM, and LWM, respectively. Corresponding SD for EBM, BPE, TIM, and LWM were on average 488, 733, 747 and 1,605 kg. When the herds were analyzed separately, the EBM predictions retained high accuracy. When more information on the actual lactation was added to the prediction, TIM and LWM gradually achieved better accuracies. Finally, in the last period of the lactation, the accuracy of both of the methods exceeded EBM and BPM. The AD for the last 2 samples analyzing all the herds jointly were on average 141, 142, 164, and 214 kg for LWM, TIM, EBM, and BPE, respectively. In the current practices of collecting monthly records, early prediction of future milk production may be more accurate using EBM. Alternatively, if enough information of the actual lactation is accumulated, TIM may obtain better accuracy in the latter stage of lactation.