• Title/Summary/Keyword: Commercial

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Ultimate Strength Analysis of Ring-stiffened Cylinders Using Commercial Softwares (상용소프트웨어를 이용한 원환보강 원통의 최종강도 해석(I))

  • 박치모;이승훈
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2000.10a
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    • pp.271-274
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    • 2000
  • Despite the increasing necessity of accurate estimation of ring-stiffened cylinders' ultimate strength, the complex structural behavior of cylinders has made their design mainly depend on empirical formulas mostly based on insufficient test data rather than theoretical background. This paper has developed the imperfection method which enables the ultimate strength analysis of buckling sensitive structures by combining two general functions of common commercial finite element softwares, linear elastic buckling analysis and nonlinear stress analysis. Developed method was applied to two of the world most renowned commercial softwares, MSC/NASTRAN and ABAQUS, for the analysis of ring-stiffened cylinders and unexpectedly big difference in their analysis results was found. This tells that many widely used commercial softwares has their different strong points and week points and the choice of commercial software should be cautiously made after thorough inspection. This paper ends with some useful information about which of the aforementioned two softwares is more appropriate respectively for linear elastic buckling analysis and ultimate strength analysis of ring-stiffened cylinders.

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A Study on Domestic Legislation Plan by Analysis of American Commercial Space Transport Laws (미국상업우주운송법 분석을 통한 국내상업우주운송법 제안)

  • Ahn, Hyo-Jung;Park, Jong-Hyuk
    • Journal of Aerospace System Engineering
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    • v.5 no.1
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    • pp.24-29
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    • 2011
  • The industry related to commercial space transport is growing rapidly as a futurity industry all over the world and America is leading them. If this trend continues, domestic individuals or private enterprises may plan for the commercial space transport business by adopting the advanced technology. Therefore it is necessary to make a law to control the business in our country for the industrial development and the growth related to commercial space transport. This paper provides outline for domestic commercial space transport law by the study and analysis of U.S. commercial space transport laws.

Manipulating Geometry Instances in an STEP-based OODB from Commercial CAD Systems (상업용 CAD에서 STEP 기반 객체지향 데이터베이스 내부의 형상 인스턴스 검색 및 수정)

  • Kim, Junhwan;Han, Soonhung
    • Journal of Korean Institute of Industrial Engineers
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    • v.28 no.4
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    • pp.435-442
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    • 2002
  • It is difficult to access and share design data among heterogeneous CAD systems. Usually, different CAD systems exchange the design data using a neutral format such as IGES or STEP. A prototype CAD system which uses a geometric kernel and a commercial database management system has been implemented. The prototype system used the Open Cascade geometric kernel and the commercial object-oriented database ObjectStore. STEP provides the database schema. The database can be accessed from commercial CAD systems such as SolidWorks or Unigraphics. The data access module from a commercial CAD system is developed with the CAD system's native API, ObjectStore API functions, and ActiveX.

Analysis of Multiple Network Accessibilities and Commercial Space Use in Metro Station Areas: An Empirical Case Study of Shanghai, China

  • Zhang, Lingzhu;Zhuang, Yu
    • International Journal of High-Rise Buildings
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    • v.8 no.1
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    • pp.49-56
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    • 2019
  • Against the background of the rapid development of the Shanghai Metro network, this paper attempts to establish an analytical approach to evaluate the impact of multiple transport network accessibilities on commercial space use in metro station areas. Ten well-developed metro station areas in central Shanghai are selected as samples. Commercial space floor area and visitors in these areas are collected. Using ArcGIS and Spatial Design Network Analysis, the Shanghai Metro network and road network are modeled to compute diversified transport accessibilities. Evidence from land use and commercial space floor area within a 0-to-500-meter buffer zone of stations is consistent with location and land-use theory: commercial land use is concentrated closer to stations. Correlation analysis suggests that hourly visitors to the shopping mall are mainly influenced by metro network accessibility, while retail stores and restaurants are affected by both metro and pedestrian accessibility.

Consciousness and Sensory Characteristics on Commercial Kimchi (시판김치에 대한 의식과 관능적 특성)

  • Park Young-Hee;Jung Lan-Hee
    • Korean Journal of Human Ecology
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    • v.9 no.2
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    • pp.85-92
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    • 2006
  • He purpose of this study was to provide basic data for improvement commercial kimchi quality. To examine the consciousness of commercial kimchi, college students residing in the Jeonnam area were selected and asked to questionnaires. Commercial kimchi samples used included a total of 7 kinds which were fermented for 2 week at $4^{\circ}C$. A sensory characteristics included 10 items with a 5-score scale: color, savory taste, carbonated taste, sour taste, hot taste, salty taste, bitter taste, off-flavor, texture, and overall preference. 76% of the whole student liked kimchi, especially well-fermented kimchi(43.2%) and kimchi with fermented fish(48.6%). Participants liked savory(21.6%), hot(17.1%), and crispy(14.4%) taste. Their most favorite kimchi was the whole cabbage kimchi(26.1%), wild lettuce kimchi(0.9%) and watery kimchi made of sliced radishes(1.8%) were low in preference. 56.8% of participants had no experience in making kimchi. They mainly bought commercial kimchi in grocery stores(37.8%) or shopping malls(29.7%). They pointed out the addition of artificial sweeter(35.1%), insanitation, and discredit of kimchi materials(21.6%) as problems of commercial kimchi. The sensory characteristics of commercial fresh kimchi was significantly different in color($2.6{\sim}4.1$), and hot($2.3{\sim}3.8$), and salty($2.6{\sim}3.5$) with p<0.001. The sensory characteristics of $4^{\circ}C$-fermented commercial kimchi for 2 week was significantly different in color($2.7{\sim}3.9$), and salty($2.1{\sim}4.0$) with p<0.001. It was found that color, and hot, and salty taste had the greatest effect on the overall preference in non-fermented kimchi, and color and salty taste, in 2 week fermented kimchi

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3-MCPD Concentrations in Commercial Korean Soy Sauces Produced by Alkali Treatment Following Acidic Hydrolysis

  • Cho, Woo-Jin;Kim, Hun;Jeong, Eun-Jeong;Lee, Young-Mi;Park, Sung-Young;Kim, Hyounjin;Lee, Jung-Suck;Nam, Gi-Jin;Cha, Yong-Jun
    • Preventive Nutrition and Food Science
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    • v.7 no.4
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    • pp.451-453
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    • 2002
  • Alkali treatment following acidic hydrolysis (ATAH) of defatted soybean is currently used to reduce the level of 3-chloropropane-1,2-diol (3-MCPD), a known carcinogen, in commercial Korean soy sauce. 3-MCPD concentrations in commercial soy sauces made by ATAH were compared with those made only by acidic hydrolysis, and products that combine soy sauce made by acid hydrolysis (followed by alkalinization) and enzymatic methods. The four soy sauces made by ATAH had lower 3-MCPD concentrations (below 0.078 ppm) than 4 commercial products (0.147∼0.481 ppm) made only by acidic hydrolysis. On the other hand, 3-MCPD concentrations in 4 commercial products made by combining soy sauces made enzymatically with that made from acid (with alkali treatment)-hydrolyzed soybean protein in varying ratios were in a range of 0.016∼0.053 ppm. The 3-MCPD concentrations in commercial Korean soy sauces, with the exception of 2 of the soy sauces made only by acidic hydrolysis, were lower than allowable limit of 0.3 ppm in Korea. These results demonstrated that currently produced commercial soy sauces on the Korean market hate toxicologically save 3-MCPD concentrations. It is also provides evidence that ATAH is an effective process for reducing 3-MCPD concentrations in commercial soy sauce.

An Overview of the Vietnam Commercial Arbitration Law in 2011 (2011년 베트남 상사중재법에 관한 소고)

  • Kim, Sun-Jeong
    • Journal of Arbitration Studies
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    • v.23 no.4
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    • pp.97-122
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    • 2013
  • Vietnam has become an attractive destination for foreign investors, but confidence in the country's legal system to resolve commercial disputes remains low. Reasons include the lack of an independent judiciary, the lack of published court decisions, and a tendency to criminalize civil disputes, among others. As such, arbitration has become a preferred alternative to litigation. On June 17, 2010, the National Assembly of Vietnam passed a new act on commercial arbitration replacing the July 1, 2003 ordinance on commercial arbitration. The new act will take effect on January 1, 2011, and it is widely expected by the Vietnamese legal profession and lawmakers will create a favorable legal framework for the expansion of the arbitration service market in Vietnam. The new act is inspired by the UNCITRAL Model Arbitration Law of 1985 as are most new arbitration laws throughout the world. As opposed to the 2003 ordinance, the 2010 Act allows parties to request interim relief from the arbitrators. Also the new act eliminates the mandate that arbitrators be Vietnamese. The law has addressed the ordinance's shortcomings and reflects international standards. Commercial arbitration law is an important milestone in the improvement process of the laws on commercial arbitration in Vietnam. However, it is still too soon to affirm anything definitely because there remain many obstacles to the activation of arbitration. Rule of law and business cultural factors are important. The leading arbitral institution, VIAC, which is attached to the Vietnam Chamber of Commerce and Industry, is expected to play an important role for boosting the competitiveness of Vietnamese arbitration as an avenue to dispute settlement.

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A Study on the application of landscape material in commercial space design (상업공간디자인에 있어 자연경관 요소의 적용에 관한 연구)

  • Woo, Ji-Yeon
    • Korean Institute of Interior Design Journal
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    • v.17 no.3
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    • pp.43-50
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    • 2008
  • Commercial space, the types of which have been increasingly various and changing rapidly, has been generating new marketing concepts for space. Especially as the environmentally friendly lifestyle spreads around, the component of natural landscape such as plant, stone, or water has been used as an important part in space design, freshly imprinting the brand image beyond the idea of simple interior property. By combining commercial space design with 'the component of the natural landscape', we can improve the brand image, create the newness in the space, lead customers to stay longer in the space, and reinforce the decorative effect. The parts of the commercial space to which we can apply the element of natural landscape are facades, walls, floors, and show windows. Various examples of real application are found according to the areas of business and goods displayed. This thesis attempts to maximize the effect of commercial space by examining and analyzing various instances of space and provide the ways of applying the space that contains an aesthetic value. For the research, 60 articles, theses, reports that have the keyword related to interior landscape and marketing strategy in commercial space were used as references. From the references, 70 cases were selected and analyzed to find landscape application patterns. Also, 4 store cases that landscape application have been the key to their success were selected for the survey. In doing this, I presented the readers with the packaging technique which improves brand image, the effect of stage direction which helps sensitive communication with users, the application as interior structure and the effect of an object that is useful to aesthetic effect in the commercial space. Finally, I endeavored to provide possible problems to be produced when applying the natural element in the commercial space and matters to be attended to in the management.

An Empirical Analysis of Influencer's Posting Strategies in Social Media (소셜미디어에서의 인플루언서 포스팅 컨텐츠 전략)

  • Kim, Sulim;Lee, Heeseok;Yang, Heedong
    • Knowledge Management Research
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    • v.21 no.4
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    • pp.41-57
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    • 2020
  • This study investigates the posting strategies of influencers for sales: what kind of contents should the influencers provide and how? Influencers used to have seven days of advertising period before the event date (sales begins) and provide both (or either) commercial and (or) non-commercial contents. Some influencers have large number of followers, while others have very small followers. We empirically investigated whether the sequence of posting the commercial and non-commercial contents influence sales, and whether such effects are susceptible to the size of followers. Through the analysis of 1,153 events of 298 influencers on Instagram, we found that commercial contents are more important than non-commercial contents for both small and large influencers. In more detail, the quantity of commercial contents is very important for the large influencers, while the quality of commercial contents is important for small influencers.

A Linked Analysis Method between Commercial district Information and Survey Information (상권정보와 설문정보의 연계 분석 방법)

  • Lee, Won-Cheol;Kang, Man-Su;Kim, Jinho
    • The Journal of Bigdata
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    • v.5 no.2
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    • pp.29-42
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    • 2020
  • In Korea, micro-enterprises are in charge of an important part of the common people's economy, but face difficulties such as excessive competition, deteriorating profitability, and concentration of life-oriented industries. In order to solve this problem, the government is providing commercial district analysis services for micro-enterprises. However, the data provided by various organizations is not standardized, and there is a limit to the composition of the service with limited data. In this paper, we propose a method of solving the data consistency problem and linking and analyzing between questionnaire information and commercial district information to expand the data analysis service. The proposed linking methods are three methods: linking the commercial area information and questionnaire information in the same area based on the type of business and area, linking the survey information centered on individual micro-enterprise, and linking a small area of questionnaire information with a large area of commercial district information. The linked commercial district information and questionnaire information can be used in various ways or expanded analysis services. This proposed a method to overcome the limitations of existing commercial district analysis services with questionnaire information and lay the foundation for expanding the commercial district analysis services necessary for micro-enterprises.