• 제목/요약/키워드: Processing characteristics

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석재가공시 발생하는 소음의 특성에 관한 연구 (A Study on the Characteristics of Noise occurred when processing Stone Material)

  • 주덕훈;국정훈;김재수
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2007년도 추계학술대회논문집
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    • pp.231-235
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    • 2007
  • Stone Industry in our country is classified mainly in view of supply of raw materials ingredients, as follows: Stone-Quarrying Industry who develops the natural resources, Stone Processing Industry who processes the quarried raw ore into construction materials and stone-products, Stony Mountain-Aggregate Industry who supplies the elementary raw materials ingredients to construction section, respectively. Among them, while Stone Processing Industry sells its turnover around billion-Won level per annum per a company, most of other job sites are paltry, adopting less than 10 employees, and it is real state that their working environments are also very coarse. The Noise originated from processing-instrument which generates at such Stone Processing Industry is as so repeatedly reiterating Loud Noise that most of the spot workers are forcedly imposing such dangers as the severe unpleasant feeling and hearing impairments. On this viewpoint, this Research is now analyzing on the frequency characteristics with regard to the Noise that generated from various processing-instruments, and then based on this, in order to grasp the influence of the Loud Noise generating when process the stone materials, this study has ever evaluated it with PSIL and NR. It is considered that such data could be used as the valuable material for establishment of a comfortable working environment hereafter.

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의류상품에 대한 소비자 지식수준과 관여도에 따른 정보처리유형에 관한 연구 (A Study on the Level of Consumer Knowledge and Involvement of Apparel Products on Information Processing Type)

  • 이지연;박재옥
    • 한국의류학회지
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    • 제29권8호
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    • pp.1125-1135
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    • 2005
  • The purpose of this study were to clarify differences in information processing type in relation to the consumer knowledge and involvement of apparel and to clarify differences in demographic characteristics in relation to the information processing type of consumer. The subjects of this study were female adults who lived in Seoul, Kyunggi or Incheon areas and Quota sampling using age and residential areas was employed. Major statistical methods were Chi square test and discriminant analysis. The results were as follows: 1. Consumer knowledge was found to be significantly related to the classification of information processing type. Low knowledge group tended to process infarmation rationally but high knowledge group utilized both rational and experiential process. 2. Consumer involvement was found to be significantly related to the classification of information processing type. Low involvement group tended to process information passively. High involvement group utilized both rational and experiential process 3. Information processing type was related to consumer's demographic characteristics such as age, education level, marriage, and purchase expense of apparel

일반 여성의 감각처리 특성에 따른 섭식 태도의 차이 (Differences in Eating Attitudes According to the Sensory Processing Characteristics of the Average Woman)

  • 문규란;이춘엽;주아영;곽나임;정혜림
    • 대한감각통합치료학회지
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    • 제18권1호
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    • pp.13-22
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    • 2020
  • 목적 : 일반 여성의 감각처리 특성에 따른 섭식 태도의 차이를 확인하였다. 연구방법 : 241명의 일반 여성을 대상으로 청소년/성인 감각프로파일(Adolescent/Adult Sensory Profile; AASP)과 섭식 태도 검사(Eating Attitude Test; EAT-26)를 이용하여 설문조사를 실시하였다. 감각처리 특성에 따른 섭식 태도는 독립표본 t-검정과 일원배치분산분석(one-way ANOVA)을 사용하여 분석하였고, 사후분석은 Scheffe Test를 실시하였다. 결과 : 감각처리 특성 중 등록저하와 섭식 통제, 감각회피와 폭식 및 음식몰두를 제외하면, 감각처리 특성에 따라 섭식 태도는 모두 유의한 차이가 나타났다(p<.05). 등록저하가 대부분의 사람보다 (매우) 많은 경우 거식과 폭식 및 음식몰두의 태도가 부정적인 것으로 나타났고, 감각추구가 대부분의 사람과 유사하거나 (매우) 많은 경우 모든 섭식 태도가 부정적인 것으로 나타났다. 감각민감성이 대부분의 사람보다 (매우) 많은 경우 폭식 및 음식몰두의 태도가 부정적인 것으로 나타났으며, 감각회피가 대부분의 사람보다 (매우) 많은 경우 거식의 태도가 부정적인 것으로 나타났다. 결론 : 감각처리 특성에 따라 섭식 태도에 차이가 있었으며, 이를 토대로 일반 여성들의 섭식 태도를 조절하기 위한 하나의 방안으로 감각통합 중재를 제안할 수 있다.

Beneficial Effects of Traditional Seasonings on Quality Characteristics of Fermented Sausages

  • Seong, Pil-Nam;Seo, Hyun-Woo;Kang, Sun-Moon;Kim, Yoon-Seok;Cho, Soo-Hyun;Kim, Jin-Hyoung;Hoa, Van-Ba
    • Asian-Australasian Journal of Animal Sciences
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    • 제29권8호
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    • pp.1173-1180
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    • 2016
  • Though traditional seasonings are widely used in many dishes, however, no attention has been paid to the investigation of their effects on quality characteristics of food products. The present investigation was undertaken to study the effects of incorporating several traditional seasonings including doenjang (fermented soybean paste), gochu-jang (red pepper paste), fresh medium-hot, and hot peppers, and fresh garlic on the lipid oxidation, cholesterol content and sensory characteristics of fermented sausages. Six fermented sausage treatments (5 with 1% (w/w) each test seasoning and 1 without added test seasoning (control) were prepared. The addition of seasonings generally had beneficial effects on the improvement of fermented sausage's quality however the effects differed depending on the each type of seasonings added. Significant lower pH values were found in all fermented sausages made with the seasonings while, lower levels of lipid oxidation were found in the treatments with hot peppers and garlic as compared with the control (p<0.05). The treatment with seasonings did not cause color or texture defects in the products whereas the sausages made with gochu-jang had significantly higher Commission International de $l^{\prime}Eclairagea^{\ast}$ (redness) value in comparison with the control. Noticeably, incorporating doenjang, medium-hot peppers, hot peppers and garlic resulted in reduction of 26.50, 32.54, 47.04, and 48.54 mg cholesterol/100 g samples, respectively (p<0.05). Higher scores for the sensory traits such as aroma, taste, color and acceptability were also given for the sausages made with seasonings. The current work demonstrates that the test seasonings represent potentially natural ingredients to be used for producing healthier fermented sausages.

Determination of homogeneity index of cementitious composites produced with eps beads by image processing techniques

  • Comak, Bekir;Aykanat, Batuhan;Bideci, Ozlem Salli;Bideci, Alper
    • Computers and Concrete
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    • 제29권2호
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    • pp.107-115
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    • 2022
  • With the improvements in computer technologies, utilization of image processing techniques has increased in many areas (such as medicine, defence industry, other industries etc.) Many different image processing techniques are used for surface analysis, detection of manufacturing defects, and determination of physical and mechanical characteristics of composite materials. In this study, cementitious composites were obtained by addition of Grounded Granulated Blast-Furnace Slag (GGBFS), Styrene Butadiene polymer (SBR), and Grounded Granulated Blast-Furnace Slag and Styrene Butadiene polymer together (GGBFS+SBR). Expanded Polystyrene (EPS) beads were added to these cementitious composites in different ratios (20%, 40% and 60%). The mechanical and physical characteristics of the composites were determined, and homogeneity indexes of the composites were determined by image processing techniques to determine EPS distribution forms in them. Physical and mechanical characteristics of the produced samples were obtained by applying consistency, density, water absorption, compressive strength (7 and 28 days), flexural strength (7 and 28 days) and tensile splitting strength (7 and 28 days) tests on them. Also, visual examination by using digital microscope, and image analysis by using image processing techniques with open source coded ImageJ program were performed. As a result of the study, it is determined that GGBFS and SBR addition strengthens the adhesion sites formed as it increases the adhesion power of the mixture and helps to get rid of the segregation problem caused by EPS. As a result of the image processing analysis it is demonstrated that GGBFS and SBR addition has positive contribution on homogeneity index.

진공함침에 따른 견인전동기 고정자 코일의 부분방전 분포 해석 및 분류 (Analysis and Classification of PD Distribution for VPI Stator coil of Traction motor)

  • 박성희;강성화;임기조;장동욱;박현준
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2004년도 하계학술대회 논문집 C
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    • pp.1982-1984
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    • 2004
  • Stator coil of rotating machinery has shown different characteristics according to impregnated with coil or not. And this is major determinant of equipment's life. In this paper, PD characteristics is studied as a classification scheme between two specimens. Processing of the coil impregnation is very important thing because that influences on thermal and electrical characteristics of the coil. And then PD is occurring at the coil and causing insulation degradation. For processing statistical processing, PD data acquired from PD detector using PDASDA(partial discharge acquisition, storage and display system). And also these statistical distribution and parameter are applied to classify PD sources by neural networks. As a result of, Neural Networks have a good discrimination rate for classification PD sources.

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전열제어를 위한 충돌제트의 거리비에 따른 열전달특성에 관한 연구 (A Study on Heat Transfer Characteristics of Impinging Jet about Distance Ratio leer Thermal Control)

  • 김동균;김정환;배석태;김시범;이영호
    • Journal of Advanced Marine Engineering and Technology
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    • 제25권6호
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    • pp.1237-1243
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    • 2001
  • This paper presents an information about the heat transfer characteristics of impinging jet in eletronic equipment with infrared image processing unit. There have been many experimental investigations and theoretical studies on impinging jet because of application in a wide variety of industrial process including electronic equipment. In this study, we used infrared image processing unit to visualize heat transfer characteristics of impinging jet in eletronic equipment. Infrared image processing unit is one of non-contact temperature measuring methods and it is possible to minimize flow resistance and this measurement is comparatively accurate. The main parameters are distance between nozz1e and heat source. Reynolds number is 6000.

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표면경화에 의한 고강도 알루미늄 합금의 마모 특성에 관한 연구 (A Study on Wear Characteristics of High strength aluminum alloys by Surface Hardening)

  • 이남수;허선철;이광영;박원조
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2007년도 춘계학술대회A
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    • pp.1601-1606
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    • 2007
  • In order for high strength aluminum alloys to be used in transportation systems and the aerospace industry, excellent mechanical and physical properties are required. In particular, excellent anti-abrasion property is indispensable for parts that require driving force. In general, surface treatment technologies such as high frequency heat treatment, gas solid carburizing, surface rolling, shot peening are used as ways of improving anti-abrasion property. Among various surface treatment technologies, this research chose shot peening processing for Al7075-T6, which is well known as representative high-strength alloy steel. Wear characteristics were compared and analyzed after shot peening processing with shot ball velocities of 40m/s and 70m/s in order to investigate the effects of shot peening processing on wear characteristics.

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발효소시지의 생산과 미생물적 특성 (Production and Microbiological Characteristics of Fermented Sausages)

  • ;이주연
    • 한국축산식품학회지
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    • 제23권4호
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    • pp.361-375
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    • 2003
  • In this study, significant factors influencing on the quality and stability of fermented sausage, such as materials, processing conditions, and microbiological characteristics as well as topography during ripening, were documented. Since most fermented sausages are not heated during manufacture or before consumption, a strict control of the growth of pathogens and the selection of favourable conditions that encourage the specific growth and development of desirable microflora are particularly important. With respect to microbiological safety, hurdles, i.e., preservations(nitrite), redox potential, competitive flora, acidity(pH), and water activity($a_{w}$) are matters of importance to prevent proliferation of bacterial pathogens. Today, for ensuring the safety and quality of the final product, the application of starter cultures in combination with the proper processing is subsequently used in practice. For improving the efficiency of microbiological utility in the production of fermented sausages, the understanding of their topography is essential. The documented different points must be taken into account when HACCP systems set up for the manufacture of fermented sausages. There are continuous researches concerning desirable improvements to sausage fermentation with health enhancing properties.

Sol-Gel법으로 제작된 광메모리영역 PLZT박막의 전기적 특성 (A Study on the Electrical Characteristics of Optical Memory PLZT Thin Films)

  • 최형욱;장낙원;백동수;박정흠;박창엽
    • 한국전기전자재료학회논문지
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    • 제11권1호
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    • pp.57-61
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    • 1998
  • In this study, PLZT stock solutions were prepared by Sol-Gel processing after the compositions were selected in the memory region of PLZT bulk phase diagram. PLZT solutions were deposited on the ITO glass substrate by spin-coating method. The thin films were annealed by rapid thermal processing. The electric characteristics, hysteresis loop, C-V characteristics of thin films in the memory region were measured in order to investigate the electrical characteristics of PLZT thin films. In selected compositions the decrease in Zr/Ti ratio led to an increase in dielectric constant and the decrease in remanent polarization and coercieve field which brought about slim hysteresis loop.

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