• Title/Summary/Keyword: plastic features

Search Result 393, Processing Time 0.024 seconds

Overexpression of KAI1 Protein in Diabetic Skin Tissues

  • Cho, Moon Kyun;Kwon, Sun Bum;Kim, Chul Han;Lee, Yoon-Jin;Nam, Hae-Seon;Lee, Sang-Han
    • Archives of Plastic Surgery
    • /
    • v.41 no.3
    • /
    • pp.248-252
    • /
    • 2014
  • Background Patients with diabetes mellitus often have a difficult life, suffering from foot ulceration or amputation. Diabetes is characterized by chronic inflammation, and one of the features of inflammation is hypoxia. Recently, it has been reported that KAI1 is a hypoxia target gene. There is no published research on hypoxia-related KAI1 protein levels in human diabetic skin. Therefore, we have investigated the expression of KAI1 protein in diabetic skin tissue in vivo. Methods The expression of KAI1 protein was evaluated by western blotting in 6 diabetic skin tissue samples and 6 normal skin samples. Immunohistochemical staining was carried out to identify KAI1 expression. Results The western blotting revealed significantly increased expression of the KAI1 protein in diabetic skin tissues as compared to normal skin tissues. Immunohistochemical examination demonstrated that KAI1 was expressed in all diabetic skin tissues with moderate-to-strong positivity and weakly expressed in normal skin tissues. Conclusions Our data suggest that a high expression of the KAI1 protein can be observed in diabetic skin tissue. To the best of our knowledge, this is the first report suggesting that KAI1 protein expression in diabetic skin tissues may be associated with chronic inflammatory states and hypoxia.

Development of Long-Term Storage Technology for Chinese Cabbage - Physiological Characteristics of Postharvest Freshness in a Cooler with a Monitoring and Control Interface

  • Lim, Ki Taek;Kim, Jangho;Chung, Jong Hoon
    • Journal of Biosystems Engineering
    • /
    • v.39 no.3
    • /
    • pp.194-204
    • /
    • 2014
  • Purpose: The aim of this study was to develop long-term storage technology for Chinese cabbage in order to extend the period of availability of freshly harvested products. The scope of the paper deals with the use of a cooler with a remote monitoring and control interface in conjunction with use of packaging film. Methods: A cooler with a real time monitoring system was designed as a low-temperature storage facility to control temperature and relative humidity (RH). The effects of storage in high-density polyethylene (HDPE) plastic boxes, 3% chitosan dipping solution, polypropylene film (PEF) with perforations, and mesh packaging bags on physiological responses were investigated. The optimal storage temperature and humidity for 120 days were below $0.5^{\circ}C$ and 90%, respectively. Physiological and biochemical features of cabbage quality were also analyzed: weight loss, texture, and sugar salinity, chlorophyll, reducing sugar, and vitamin C contents. Results: The cooler with a remote monitoring and control interface could be operated by an HMI program. A $0.5^{\circ}C$ temperature and 90% humidity could be remotely controlled within the cooler for 120 days. Postharvest freshness of Chinese cabbages could be maintained up to 120 days depending on the packaging method and operation of the remote monitoring system. In particular, wrapping the cabbages in PEF with perforations resulted in a less than a 5% deterioration in quality. This study provides evidence for efficient performance of plastic films in minimizing post-harvest deterioration and maintaining overall quality of cabbages stored under precise low-temperature conditions with remote monitoring and a control interface. Conclusions: Packaging with a modified plastic film and storage in a precisely controlled cooler with a remote monitoring and control interface could slow down the physiological factors that cause adverse quality changes and thereby increase the shelf life of Chinese cabbage.

A study on the development of cultural industries craft (공예문화산업의 발전방안 연구)

  • Kim, Sung-Min
    • Journal of Digital Convergence
    • /
    • v.11 no.10
    • /
    • pp.689-694
    • /
    • 2013
  • Craft culture industry 'crafts and culture made up of industry meaning of' rather than 'as a craft industry'. Culture it is desirable to see Roy. Craft culture industry features, technology, techniques, or by indigenous raw materials to the foundation, which is produced as a plastic product manufacturing process, characteristics of the main part of the craft industry with a means to manufacture products. Historically, over the years, which has been formed by tradition, culture, crafts related to specific industries. Only by looking at the craft cultural industries have unique features and understand the value and no longer making craft activity does not remain only in the dimensions of the production, distribution and development of craft industries and national and ethnic culture has inherited expression traditionality a representative craft, culture as a development plan for the industry through the development of market research is to propose ways.

The histologic features of the uterus and adnexa extirpated from gender identity disorder patients with depot androgen injection (남성호르몬 투여 받은 성 주체성 장애 환자에서 적출된 자궁 및 부속기의 조직학적 특징에 관한 고찰)

  • Byun, Jae Chun;Kwak, Bong Gyu;Shin, Ji Hyun;Cha, Moon Seok;Han, Myoung Seok;Rha, Seo Hee;Kim, Seok Kwun
    • Clinical and Experimental Reproductive Medicine
    • /
    • v.32 no.4
    • /
    • pp.325-330
    • /
    • 2005
  • Objective: To investigate the histologic features of the uterus and adnexae extirpated from gender identity disorder (GID) patients that received depot androgen injection. Methods: We reviewed the histologic findings of the uterus and adnexae removed from sixteen GID patients, who had taken depot androgen injection for 5~168 months. Results: Fourteen patients (87.5%) showed the atrophied epithelium of exocervix and all of 16 patients (100%) showed the atrophy of endometrium. Seven patients (43.7%) showed multiple cystic follicles in the ovarian cortex and 6 patients (37.5%), 3 patients (18.7%) showed corpus albicans and corpus luteum, respectively. Conclusions: Exogenous androgen induced atrophy of cervix and endometrium. This effect was more prominent in the endometrium. In addition, PCO-like histologic features were observed in the ovary.

Origin of Carbonate Flat Pebble Conglomerate of the Upper Cambrian Hwajǒl Formation, Chosǒn Supergroup, Korea (조선루층군(朝鮮累層群) 상부 캠브리아계(系) 화절층(花折層)에 협재(挾在)된 Carbonate Flat Pebble Conglomerate의 성인(成因))

  • Park, Byong-Kwon;Han, Sang-Joon
    • Economic and Environmental Geology
    • /
    • v.18 no.2
    • /
    • pp.177-184
    • /
    • 1985
  • The carbonate flat pebble conglomerates (CFPC) are interbedded as lenticular bed in the greenish rhythmite of the upper part of $Hwaj{\check{o}}l$ Formation, $Jos{\check{o}}n$ Supergroup. Pebbles are composed mainly of lime-mudstone with small amounts of bioclasts and silt-sized subangular quartz grains. The matrix among pebbles is composed mainly of sparry calcite with relatively much amounts of bioclasts, silt-sized subangular quartz grains and authigenic pyrite crystals or grains. The sparry calcite of the matrix seems to be the results of neomorphism of skeletal sands and bioclasts. The pebbles are well rounded and no plastic deformations are found. Some pebbles show the outer rim of glauconite. CFPC are not associated with any other intertidal features such as stromatolites, flaser bedding and channel structures. Also any features indicative of subaerial exposure such as dessication cracks, fenestrae and so on are not found in the bed. The sedimentological features of CFPC suggest that the following conditions appear to have been necessary for the formation of CFPC : 1) episodic deposition of thin, permeable calcareous beds separated argillaceous beds; 2) preservation of these beds near the sediment-water interface where they could become rapidly cemented; 3) erosion and redeposition of the partially lithified beds by storms or other exceptional erosional events. Eventually storm erosion and redeposition together represent only one of several critical conditions in the genesis of CFPC. The CFPC are very common in Cambrian and lower Ordovician formations, and become very rare in the younger carbonate formations. The expansion of infauna after Ordovician Period eliminated the widespread potential for rapid submarine cementation which is one of the critical factors to form CFPC.

  • PDF

Development of Key Technologies for Large Area Forming of Micro Pattern (대면적 미세 성형공정 원천기술 개발)

  • Choi, Doo-Sun;Yoo, Yeong-Eun;Yoon, Jae-Sung;Je, Tae-Jin;Park, Si-Hwan;Lee, Woo-Il;Kim, Bong-Gi;Jeong, Eun-Jeong;Kim, Jin-Sang
    • Journal of the Korean Society for Precision Engineering
    • /
    • v.28 no.7
    • /
    • pp.777-782
    • /
    • 2011
  • Micro features on the surface are well-known to have significant effects on optical or mechanical properties such as the optical interference, reflectance at the surface, contact angle, interfacial friction, etc. These surface micro features are increasingly employed to enhance the functionality of the applications in various application areas such as optical components for LCD or solar panel. Diverse surface features have been proposed and some of them are showing excellent efficiency or functionality, especially in optical applications. Most applications employing the micro features need manufacturing process for mass production and the injection molding and roll-to-roll forming, which are typical processes for mass production adopting polymeric materials, may be also preferred for micro patterned plastic product. Since the functionality or efficiency of the surface structures generally depends on the shape and the size of the structure itself or the array of the structures on the surface, it would be very important to replicate the features very precisely as being designed during the molding the micro pattern applications. In this paper, a series of research activities is introduced for roll-to-roll forming of micro patterned film including filling of patterns with UV curable resin, demolding of surface structures from the roll tool, control of surface energy and cure shrinkage of resin and dispose time and intensity of the UV light for curing of UV curable resin.

A numerical model for masonry implemented in the framework of a discrete formulation

  • Nappi, A.;Tin-Loi, F.
    • Structural Engineering and Mechanics
    • /
    • v.11 no.2
    • /
    • pp.171-184
    • /
    • 2001
  • A direct discrete formulation suitable for the nonlinear analysis of masonry structures is presented. The numerical approach requires a pair of dual meshes, one for describing displacement fields, one for imposing equilibrium. Forces and displacements are directly used (instead of having to resort to a model derived from a set of differential equations). Associated and nonassociated flow laws are dealt with within a complementarity framework. The main features of the method and of the relevant computer code are discussed. Numerical examples are presented, showing that the numerical approach is able to describe plastic strains, damage effects and crack patterns in masonry structures.

EVALUATION OF NONLINEAR FINITE ELEMENT COMPUTER PROGRAM SMAP-S2 (비선형 유한요소 컴퓨터 프로그램 SMAP-S2의 평가)

  • 김광진
    • Proceedings of the Korean Geotechical Society Conference
    • /
    • 1991.10a
    • /
    • pp.271-288
    • /
    • 1991
  • SMAP-S2 is an advanced too-dimensional , static finite element computer program developed for the geometric and material nonlinear structure-medium interaction analysis. The program has specific applications for modeling geomechanical problems associated with multi-staged excavation or embankment. Theoretical formulations and computational algorithms are presented along with the description of elasto-plastic material models. Nonlinear features of the code are verified by comparing with known solutions or experimental test results. Capabilities of per- and post-processing programs are discussed.

  • PDF

A Simplification Method for Feature-based Solid Models (특징형상기반 솔리드 모델의 간략화 방법에 관한 연구)

  • Son, Tae-Geun;Sheen, Dong-Pyoung;Myung, Dae-Kwang;Ryu, Cheol-Ho;Lee, Sang-Hun;Lee, Kun-Woo
    • Korean Journal of Computational Design and Engineering
    • /
    • v.15 no.3
    • /
    • pp.243-252
    • /
    • 2010
  • This paper describes a new practical simplification method for feature-based solid models. In this approach, a solid model created using feature modeling operations is first simplified by the suppression of detailed features, and then, if necessary, the model is converted to a surface model to facilitate its modification. Finally, the simplified surface model is delivered to analysis packages. The algorithm was implemented based on CATIA V.5 and applied to mid-surface generation of plastic parts for structural analysis to prove the validity and usefulness.

Flexible Active-Matrix Electrophoretic Display With Integrated Scan-And Data-Drivers

  • Miyazaki, Atsushi;Kawai, Hideyuki;Miyasaka, Mitsutoshi;Inoue, Satoshi;Shimoda, Tatsuya
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2004.08a
    • /
    • pp.153-156
    • /
    • 2004
  • A newly developed flexible active-matrix (AM-) electrophoretic display (EPD) is reported. The AM-EPD features: (1) low-temperature polycrystalline silicon (LTPS) thin film transistor (TFT) technology, (2) fully integrated scan- and data-drivers, (3) flexibility and light-weight realized by transferring the whole circuits onto a plastic substrate using $SUFTLA^{TM}$ (Surface Free Technology by Laser Annealing/Ablation) process. A large storage capacitor is formed in each pixel so that driving electric field can be kept sufficiently strong during a writing period Two-phase driving scheme, a reset-phase which erases a previous image and a writing-phase for writing a new image, was chosen to cope with EPD's high driving voltage. The flexible AM-EPD has been successfully operated with a driving voltage of 8.5 V.

  • PDF