• Journal of the Optical Society of Korea
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• 제10권4호
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• pp.145-156
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• 2006

In the field of ophthalmology, many diagnostic instruments based on optical technology have been developed, such as refractometer, keratometer, corneal mapper, tonometer, fundus camera, slit lamp, laser scan ophthalmoscope and optical coherence tomography. Among them, the refractometer that is used for measuring the refractive power of the human eye has the long research history and various types have been developed. However the efforts to realize more accurate and precise measurement are still in progress. The wavefront analyzer commercialized in recent years is an excellent outcome of such efforts. In this paper, a brief account of the developmental history of various refractometers including the wavefront analyzer is summarized, and the underlying measurement principle is introduced in the view of optics. Finally, the technical issues that should be solved for getting better performance are discussed.

• 식품과학과 산업
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• 제45권4호
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• pp.16-20
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• 2012

Although the technology of breadmaking simply goes through the process of mixing, fermentation, and baking, it is very hard to make a same product every day. The reason is that baking science begins with the very first process of breadmaking which is mixing, and every steps and working environments are so closely connected. The baking science has developed in short time since the theory of fermentation has released. If you check the development of baking technology synthetically, it is consisted of the discovery of nutritional and functional ingredients, the optimization process of new machines, and the maintenance of the quality as fulfilling social demands. Because the baking business is making and selling the product, baking itself is a business, and it has the form that manufacturing and service business coexist. In today's current domestic bakery market, the supply exceeds the demand. Moreover, the concept of bakery itself has been changing from the fixed image of bakery which is selling the bread to the differentiated bakery with others. As we look at the general bakery's trends, it is focused on going back to the basic or traditions, going to the functional, and working with automations. To conclude, the baking has a long history, but it actually has the short history in the technological development. Baking business can be viewed as the simple business, but many factors are related to the business. It has a few basic kinds of products in baking, but it has diverse kinds of products with the base of infinite creativity. Even though it is physically a hard working business, it is also a business that can face with fun. For managing a bakery, finally, the differentiated strategy with other bakery that maximizes the customers' value is needed.

• 식품과학과 산업
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• 제50권2호
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• pp.74-85
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• 2017

This paper aims to compare the language of food related to rice and wheat in Korean, Chinese and Japanese. These three countries in East Asia are very close in terms of geography, history, and culture. As of language, Korean and Japanese are classified as a same language family, while Chinese, to another. However, since three countries have been sharing Chinese character and words composed of it, there are many alike things in their languages. It is natural that food and the language of food are shared in neighboring areas. Among many food, I will explain the names of rice and wheat and the details of the names of various food made of them. In particular, rather than a simple comparison, the language of food is analyzed in the viewpoint of migration. And I will look into the names of food not only in relation to language, but also in culture, society and history.

• 한국식생활문화학회지
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• 제24권1호
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• pp.33-38
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• 2009

Alcoholic beverages can be viewed as repositories of historical information reflecting agricultural environment, economic and scientific level, religion, literature and art of their country. Korean Alcoholic beverages are based largely on rice, which have been developed in the following order: Takju, Cheongju and distilled spirits, Soju. They are closely related with the development of agriculture and historical levels of science and technology, and thus can be seen as symbolizing economic and political changes as well as rises and declines throughout the culture's history. The present review assessed the past and present flows of Korean alcoholic beverage culture, which has had a significant influence on the mental world of Korean people, based on literature concerning the history of food in Korea. Another focus of the study was a discussion on the future transmission and refining of Korean alcoholic beverage culture, which is undeniably informed by the Korean people's unique imagination and cultural sense.

• Journal of information and communication convergence engineering
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• 제19권3호
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• pp.142-147
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• 2021

In this paper, we propose an intelligent research fund management system that applies artificial intelligence technology to an integrated research fund management system. By defining research fund management rules as work rules, a detection model learned using deep learning is designed, through which the disapproval status is presented for each research fund usage history. The disapproval detection system of the RCMS implemented in this study predicts whether the newly registered usage details are recognized or disapproved using an artificial intelligence model designed based on the use of an 8.87 million research fund registered in the RCMS. In addition, the item-detail recommendation system described herein presents the usage details according to the usage history item newly registered by the artificial intelligence model through a correlation between the research cost usage details and the item itself. The accuracy of the recommendation was shown to be 97.21%.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 2000년도 춘계공동학술대회 논문집
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• pp.664-667
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• 2000

Although managing knowledge about business processes has been recognized as an important aspect of Knowledge Management System (KMS), it has not been satisfactorily addressed academically or commercially. This paper proposes a KMS architecture to effectively manage business process as knowledge. It expands commonly recognized KMS functions with the process packaging module that defines business processes, monitors and evaluates process instances, keeps process instance history, and provides link between processes and other knowledge items such as documents and experts. The users can not only find the best practice of a business process but also learn from mistakes. A prototype system is implemented to show the feasibility of the proposed architecture. The results of this paper can contribute to expand current KMSs to help use knowledge to enhance the users' performance in their business processes.

• Earthquakes and Structures
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• 제20권3호
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• pp.295-307
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• 2021

The gap provided between adjacent structures in the metropolitan cities is mostly narrow due to architectural and financial issues. Consequently, structural pounding occurs between adjacent structures during earthquakes. It causes damages, ranging from minor local to more severe ones, especially in the case of seismically isolated buildings, due to their higher displacements. However, due to the increased flexibility of isolated buildings, the problem could become more detrimental to such structures. The effect of the seismic pounding of moat walls on the response of buildings isolated by Triple Friction Pendulum Bearing (TFPB) is investigated in this paper. To this propose, two symmetric three-dimensional models, including single-story and five-story buildings, are modeled in Opensees. Nonlinear Time History Analyses (NTHA) are performed for seismic evaluation. Also, five different sizes with four different sets of friction coefficients are considered for base isolators to cover a whole range of base isolation systems with various geometry configurations and fundamental period. The results are investigated in terms of base shear, buildings' drift, and roof acceleration. Results indicated a profound effect of poundings against moat walls. In situations of potential pounding, in some cases, the influence of impact on seismic responses of multistory buildings was more remarkable.

• 식품과학과 산업
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• 제53권2호
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• pp.225-234
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• 2020

During the Japanese colonial period, Japanese brewing companies established 2 breweries in Korea, and brought in malting barley seeds, began trial cultivation in near Daejeon area and Jeju Island, and cultivated hops in Hyesan, Hamgyeong-do. In 1933, Chosun Brewery Co. Ltd. and Showa-Kirin Brewery Co. were established in Yeongdeungpo by Japan and these 2 breweries became the birthplace of today's Hite Brewery and Oriental Brewery. Oriental Brewery tried to cultivate hops and malting barley in Korea, and once self-sufficient but now hops depend on imports, and production of domestic malting barley is about 5% of demand. Beer was only about 5% of domestic alcohol consumption in the early 1970s, but now occupies more than 50% and became the most popular alcoholic drink in Korea. Recently various beers are imported from the world, and many craft breweries serving variety of beers to consumers, thus Korean enjoy heyday of the beer culture.

• 대한임상검사과학회지
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• 제50권4호
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• pp.382-390
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• 2018

임신진단검사는 고대 이집트에서 밀과 보리를 이용한 발아시험으로 시작하였다. 이후 Hippocrates와 Galen을 거쳐 uroscopy를 활용하던 중세를 넘어 1800년대 초반까지도 비과학적 방법들이 사용되었다. 그러나 1800년대 중반 이후 과학적 실험방법과 근거들이 나타나기 시작하면서 임신의 생리학적 특성에 대한 과학적 연구들이 시작되었다. 이와 같은 과학적 연구결과를 활용하려는 최초 시도는1927년 Aschheim와 Zondek의 rat와 mouse를 이용한 bioassay로 시작되었고, 이후 토끼와 개구리를 이용하는 실험으로 발전하였다. 1960년대부터 시작된 면역검사방법은 bioassay의 문제점을 개선하면서 임신진단검사를 일반화하는데 크게 기여하였다. 1976년에는 가정에서 사용할 수 있는 임신진단키트가 출시되어 임신진단을 대중화하는데 기여하였다. 1980년대 이후 진단검사의 기술적 진보는 임신진단검사에도 활용되어 임신진단의 검사신뢰도는 더욱 향상되었으며, 2000년대에는 가정용 임신진단키트의 정확도와 사용편리성이 혁신적으로 향상되었다. 본 조사에서는 임신진단검사의 역사와 과학적 발전과정을 고찰하였다.

• Journal of Mechanical Science and Technology
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• 제19권2호
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• pp.549-557
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• 2005

The requirements of multi-resolution models of feature-based solids, which represent an object at many levels of feature detail, are increasing for engineering purposes, such as analysis, network-based collaborative design, virtual prototyping and manufacturing. To provide multi-resolution models for various applications, it is essential to generate adequate solid models at varying levels of detail (LOD) after feature rearrangement, based on the LOD criteria. However, the non-commutative property of the union and subtraction Boolean operations is a severe obstacle to arbitrary feature rearrangement. To solve this problem we propose history-based Boolean operations that satisfy the commutative law between union and subtraction operations by considering the history of the Boolean operations. Because these operations guarantee the same resulting shape as the original and reasonable shapes at the intermediate LODs for an arbitrary rearrangement of its features, various LOD criteria can be applied for multi-resolution modeling in different applications.