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Study on Atmospheric Corrosion for Two Different Marine Environments in India

  • Saha, Jayanta Kumar
    • Corrosion Science and Technology
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    • v.6 no.3
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    • pp.120-127
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    • 2007
  • In any developing nation major investment goes for infrastructure and it is not exception in India. Good numbers of buildings, bridges, shopping malls, car parks etc. are coming up with steel for sustainable development. Thus protecting the structures from corrosion are the challenges faced by professionals for all types of steel structures. About 3% of GDP is accounted for loss due to corrosion. To combat this up to date corrosion map is called for as the country has wide variation of climatic zones with vastcoastline. Logically organic paint system can be prescribed based on the corrosion rate on bare steel with respect to environment. Present paper will emphasis on the study conducted on two types of structural steel coated with organic paint located in twomarine environment having been exposed for three years, Test coupons made from steels both bare and coated are deployed at two field stations having marine (Digha) and industrial marine (Channai) environments. Various tests like AC impedance DC corrosion, polarisation, salt spray test, $SO_2$ chamber and Raman spectroscopy were carried out both in laboratory on fresh as well as coupons collected from exposure sites. Rust formed on the bare and scribed coated coupons are investigated. It is found that normal marine environment at Digha exhibits higher corrosion rate than polluted marine environment in Channai. Rust analysis indicates formation of ${\propto}$-FeoOH protects or reduces corrosion rate at Channai and formation of non-protective ${\gamma}$-FeoOH increases corrosion rate at Digha. The slower corrosion rate in Channai than at Digha is attributed due to availability of $SO_2$, in the environment, which converts non‐protective rust ${\gamma}$-FeoOH to protective rust ${\propto}$-FeoOH. While comparing the damage on the coated panels it is found that low alloy structural steel provides less damage than plain carbon steel. From the experimentations a suitable paint system specification is drawn for identical environments for low medium and high durability.

Web Accessibility Evaluation of Internet Shopping Malls and Development of Alternative Text Rate Improvement Tool (인터넷 쇼핑몰 웹접근성 평가 및 대체 텍스트율 향상 방안 구현)

  • Lim, Kyeng Gyu;Lee, Goo Yeon;Kim, Hwa Jong
    • Journal of Digital Contents Society
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    • v.19 no.3
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    • pp.537-546
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    • 2018
  • In this paper, we study improvement of web accessibility of Korean Internet shopping mall websites. First, we analyze the criteria of Korean web accessibility, and then evaluate the web accessibility level of major Internet shopping mall websites in Korea. Based on the evaluation of web accessibility level, we propose and implement an alternative text enhancement method using Excel VBA to increase the rate of alternative text for improving web accessibility. Using the proposed method, even non-specialists of web programming can check and modify the alternative text of the image included in web pages, which can help improve the web accessibility compliance rate.

Comparison of Knitwear Preference and Buying Behavior in Their 20's Male and Female - Focused on Gender and the Times - (20대 남녀 소비자의 니트웨어 구매 행동과 선호도 비교 - 성별과 년도를 중심으로 -)

  • Lee, Young-Ju
    • Journal of the Korea Fashion and Costume Design Association
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    • v.15 no.4
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    • pp.29-45
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    • 2013
  • The purpose of this study is to provide base line data required to establish a viable knitwear marketing strategy targeting young people by comparing and analyzing preference and buying behavior of customers in their twenties. A survey was conducted in 2009 and 2013 on people in their 20's male and female living in Busan. The total of 362 people participated in the survey and the results are as follows: Firstly, the seeking factors for knitwear were utilization factor, functionality factor, care for clothing factor, economics factor and vogue factor. Secondly, a differentiated marketing strategy targeting 20-something customers needs to be established as there was a steep rise in the number of customers purchasing clothes on online shopping malls using smart phone devices according to the survey.'Low-price, broad-line strategy'is also required as those surveyed preferred stores offering a wide choice of designs with reasonable price. Considering the survey results that a growing number of people tended to buy a variety of knitwear items regardless of the seasons, knitwear production needs to be diversified in terms of designs and materials. Thirdly, the survey revealed that pastel-colored knitwear was preferred for spring/summer season whereas knitwear with achromatic colors was voted the most-preferred one during the autumn and winter season. In terms of knitwear shapes, the gap between genders continues to narrow and tendency sensitive to fashion trend became more apparent reflecting the change of the times.

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Enzymatic Production of Amylopectin Cluster Using Cyclodextrin Glucanotransferase (Cyclodextrin Glucanotransferase를 이용한 아밀로펙틴 클러스터의 생산)

  • Lee, Hye-Won;Jeon, Hye-Yeon;Choi, Hyejeong;Shim, Jae-Hoon
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.43 no.9
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    • pp.1388-1393
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    • 2014
  • To enzymatically prepare amylopectin cluster (APC), cyclodextrin glucanotransferase (CGTase I-5) and its mutant enzyme from alkalophilic Bacillus sp. I-5 were employed, after which the hydrolysis patterns of CGTase wild-type and its mutant enzyme toward amylopectin were investigated using multi-angle laser light scattering. CGTase wild-type dramatically reduced the molecular weight of waxy rice starch at the initial reaction, whereas the mutant enzyme degraded waxy rice starch relatively slowly. Based on the results, the molecular weight of one cluster of amylopectin could be about $10^4{\sim}10^5g/mol$. To determine production of cyclic glucans from amylopectin, matrix-assisted laser desorption ionization time-of-flight mass spectrometry was performed. CGTase I-5 produced various types of cyclic maltooligosaccharides from amylopectin, whereas the mutant enzyme hardly produced any.

u-Disaster Prevention System based Real-Time Fire Monitoring in a Building Facility (u-방재시스템 기반의 시설물 실시간 화재 모니터링)

  • Moon, Sung-Woo;Seong, Hyun-Jin
    • Korean Journal of Construction Engineering and Management
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    • v.12 no.1
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    • pp.107-114
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    • 2011
  • The building infrastructures such as high-rise buildings, shopping malls, exhibition centers, etc. are becoming larger in magnitude and more complex in complexity. Considering a large number of tenants and visitors are staying in these facilities, it is upper most important to keep those in safe from fire outbreak. In this paper, a u-Disaster Prevention System has been presented to provide effective fire evacuation when fire breaks out in building infrastructures. The ubiquitous sensor network (USN) technology was applied to detect heat and smoke from fire outbreak. The information then is transmitted wirelessly to a host computer. The tenants and visitors residing in the facility can evacuate following the instruction that is displayed in LED sign boards of the u-Disaster Prevention System. A case study shows that the ubiquitous environment can help people evacuate faster in time, shorter in distance with the assistance of the u-Disaster Prevention System.

Female College Students' Jean Pants Style -With a Focus on Skinny Jean- (여대생의 진 팬츠 스타일에 대한 연구 -스키니 진을 중심으로-)

  • Yoon, Jin-Ah
    • Journal of the Korea Fashion and Costume Design Association
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    • v.9 no.1
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    • pp.189-201
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    • 2007
  • Contemporary young people reveal their own personal values through the fashion that creates visual looks. Since 2000s began, young generations who are self-centered, value their own personality and constantly seek for changes form the main axis of fashion. In particular, the lower half of the body that has begun to be exposed outward has become the region that they want to expose as more ideal region than the upper half of the body. Further, young generations always have interest in fashion, and female college students in their early 20s are regarded as the group that values the aspects of pleasure that involve clothes and tends to seek sensibility when purchasing clothes. With this background, this study aims to examine how the styles that apply to modern fashion and recent vogues are evaluated with a focus on skinny jean from jean pants styles preferred by female college students. Materials regarding theoretical background and photos were collected from fashion related magazines at home and abroad and from the Internet websites. Questionnaires were surveyed for 160 female college students aged 20 or 25 who live in Seoul, and the results show as follows: Many female college students enjoy skinny jean and follow the fashion. However there are consumers who cling to their own styles even in the fashion of skinny jen. Ironically, some consumers wear it although they consider it as an item that does not fit Koreans: they tend to consider perspectives from others rather than their own preferences. For example, they wear it in order to show it to their boy friends or because they want themselves to look slim. In addition consumers seem to use Dongdaemun Shopping Mall or Internet shopping malls that provide various and low-priced items rather than to use high-priced famous products. It is considered that this result is shown as above because the scope of the study was restricted to female college students in their 20s. Accordingly, it is suggested that further studies should extend their subjects to wider range of ages.

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The Study of Design Characteristics of Peplums Blouses and Their Constituents - Based on the Survey in Domestic Online Shopping Malls - (페플럼 블라우스의 조형적 특성과 구성요소에 관한 연구 - 온라인 쇼핑몰을 중심으로 -)

  • Kwan, Jung-Suk;Koo, Mi-Ran
    • Journal of the Korea Fashion and Costume Design Association
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    • v.16 no.3
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    • pp.179-189
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    • 2014
  • Peplums have a great advantage in easy styling for wearers to acquire desired physical and reminiscent images depending on the type and where it is placed on the waist line. However, the study of peplum blouses has not yet recognized. This study suggests a baseline data for visual appraisals as a determined key factor is changes. The result of this study as follows: First, peplums published between 2012 through 2014 collections are used for decorative effects on tops or bottoms as the finest decoration details of fashioning women's physical attractiveness. Its application has been extended to various fashion themes such as belts and overskirt that are made of peplum itself. Second, peplums published between 2012 through 2014 collections have close correlation of how the position, shape, and length of peplums are attached on bottoms. Peplum effects are categorized as extension of tops, expansion of bottoms, connections of tops and bottoms, and separation of tops and bottoms. Third, total of seventy nine peplum blouses that are found in the domestic online shopping mall are analyzed. The total length of peplum blouses are generally produced to 56 to 61cm, which is little shorter than or approximately equal to the hip line of women aged in between twenty to twenty four. In addition, the most popular peplum design is made of flare and cutting lines on the waist line and is 45.56% of samples. The most common location of peplums is identified as 3 to 6 cm above the natural waist line or the natural waist line and is 78.47% of samples. Fourth, the key factor of peplum blouse that can significantly influence the visual image is the total length of blouse, position of peplum, and peplum shape.

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Identifying the Main Price Ranges of Online Product Category (온라인 상품 카테고리 내 주요 가격대 식별)

  • Kim, Jun Woo;Im, Kwang Hyuk
    • The Journal of the Korea Contents Association
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    • v.12 no.12
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    • pp.733-741
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    • 2012
  • In recent, many consumers visit the online shopping malls or price comparison sites to collect the information on the product category that they are interested in. However, the volumes of the data provided by such web sites are often too enormous, and significant number of consumers have trouble in making purchase decision based on the plethora of products and sellers. In this context, modern online shopping agents need to process the retrieved information in more intelligent way before providing them to the users. This paper proposes a novel approach for identifying the main price ranges hidden in a single product category. To this end, the price of an item in the category is represented as a row vector and k-means clustering analysis is applied to the price vectors to produce the clusters that consists of the product items with similar price vectors. Then, the main price ranges of the product category can be identified from the result of clustering analysis. In general, the price is one of the most important factors in the consumers' purchase decision, and the identified main price ranges will be helpful for the online shoppers to find appropriate items effectively.

A Study on the factors affecting Purchasing Intentions of Internet Shopping Mall (인터넷 쇼핑몰의 구매 의도에 미치는 영향요인)

  • Gam, Hua-Jun;Kim, Dae-Ho
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.7 no.3
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    • pp.105-113
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    • 2012
  • There are many studies about the relationship between customer satisfaction and SCM, web site quality or online Word of Mouth (WOM). When a customer wants to purchase any product online, he has to watch the detail of a online shopping web by computer. So the web sits' quality can be very important for the customer to get enough information. Recently, internet shopping malls are very much prospered. To understand why these kinds of internet transactions become very popular, this study investigates a possible effect of such crucial factors as web site quality, supply chain management(or deliver service), and online Word of Mouth(WOM) of an internet shopping mall to its customer satisfaction and trust, eventually leading to purchasing product and services. This study develops a experimental research model and tests it based on 170 survey response using regression analysis.. The finding of this research implies that system quality, information quality, quick and correct, accurate delivery service, and online WOM are influential factors to the performance of online shopping mall, while design quality, cost of delivery do not affect relationship significantly.

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The Effect of Trust and Distrust on the Purchase Intention at Internet Shopping Malls - Focusing on the Chinese Users - (인터넷 쇼핑몰에서 신뢰와 불신이 구매의도에 미치는 영향 - 중국 인터넷 쇼핑몰 사용자를 중심으로 -)

  • Park, Hye-Ryung
    • Fashion & Textile Research Journal
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    • v.11 no.5
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    • pp.741-752
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    • 2009
  • As a major obstacle to active online purchase at the level of consumer in China, distrust is raised in this study. Most of previous studies showed that trust is a major variable to cause a relational unity between company and consumer, on the other hand, this study attempts to show that according to the two dimensional point of view regarding trust each dimension of both trust and distrust distinctly contributes to marketing achievement. Interaction, perceived popularity, information usefulness, perceived security risk and perceived dealing risk were created as preceding variable, trust and distrust were constituted as parameter and relation absorption and purchase intention as consequential variable. These variables were analyzed with structural equation modeling (SEM) in LISREL 8.3 program. The results for this study are as follows. First, relation between exchange actors in marketing is divided into two concepts of trust and distrust differently from the previous studies. On the assumption that trust and distrust might exist simultaneously and they would distinctly have an influence on marketing consequency such as relation absorption and repurchase intention, it is identified that trust and distrust are a different dimension in online context. Second, the formative factor of online trust-distrust is identified and it is shown what relationship between internet shopping mall and relation absorption and foregoing purchase intention resulting from online trust-distrust exists. Third, it is shown that in online context the formative factor of online trust-distrust is distinctly contributed to relation absorption and repurchase intention. It is suggested that trust needs to be managed two-dimensionally separating from trust and distrust. Fourth, it is shown that both trust and distrust factor in terms of relation absorption and repurchase intention of consumer in internet shopping mall are significant variables. Trust is linked with repurchase intention through relation absorption, however, distrust is not directly linked with repurchase intention through relation absorption. Thus, the ripple effect of distrust appears to be much higher than that of trust.