• Journal of Elementary Mathematics Education in Korea
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• v.17 no.1
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• pp.105-128
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• 2013

One of the biggest changes in 2007 Curriculum Revision is introduction of letter, equation, direct proportion and inverse proportion in fifth and sixth grade of mathematics. The purpose of this study is to provide some implications about teaching-learning method for introduction of letters, teaching and learning activities of equation between the 6th Curriculum and 2007 Curriculum Revision. The below conclusions were drawn from findings obtained in this study. First, the letter and expression were learned in fifth and sixth grade until 6th Curriculum and were learned in seventh grade in middle school of 7th Curriculum. But letter, equation are introduced in 2007 Curriculum Revision again. The overall contents of letter and expression were learned on the 'Relationship' domain in the 6th Curriculum, it were learned on the 'Letter and expression' domain in the 7th Curriculum and is learned on the 'Regularity and problem-solving' domain in the 2007 Curriculum Revision. Second, teaching method of these contents was to promise some definitions at first and then to solve exercises in the 6th Curriculum. But leaning was forced to improve student's problem-solving in the 7th Curriculum. To reduce student's pressure offers at a minimum mathematics terms and to provide problem situations to students who contact daily, it is emphasized on learner's communication in the 2007 Curriculum Revision. We want to be easily connected elementary mathematics and higher mathematics through this study about letter, equation. We recognized how we teach the letter and expression to reduce misconceptions and draw a transition from arithmetic thinking to algebraic thinking and want to be continue of another studies.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.11 no.6
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• pp.155-163
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• 2012

At present the letter sizes of traffic sign are variously designated as 22 cm through 60 cm, however the basis for determination has not been found so far. Driver's visual acuity for getting a driver licence is required higher than 0.5. In order to interpret the information of traffic signs effectively, the minimum requirement of driver's visual acuity must be applied to determine the letter size of traffic sign. Therefore we reviewed that a driver with visual acuity of 0.5 could read the current letter sizes of traffic sign. In addition, a methodology was developed to determine the letter size of traffic sign satisfied with the driver's visual acuity of 0.5. This study established scenarios that were composed of visual acuity, reaction time, the number of lane and the letter sizes of traffic sign for each scenario were proposed. Current letter size of traffic sign would not be difficult for drivers with minimum visual acuity of 0.5 to recognize the contents or information of traffic signs. The method developed in this research has an advantage that can consider a human factor like driver's visual acuity for the design of traffic signs. There is also a meaning of making a basis for the letter size of traffic sign.

• International Commerce and Information Review
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• v.2 no.1
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• pp.67-95
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• 2000

Owing to the Boero Service, Global Trading will be materialized as international Business to Business E-Commerce. There are three principles in the letter of credit transaction, that is to say, independence and abstraction, document dealing, strict compliance. In the electronic letter of credit, these principles are called as independence and abstraction, electronic document dealing, strict compliance. As a joint venture between SWIFT and TT Club, bolero.net is changing the way the world trades by providing a web-based, paperless mode of commerce that is designed to become a global standard. As bolero.net supplies the service of the title registry resolves the problem of Electronic Bill of Lading, the electronic letter of credit will be easily introduced. Thus, this study deals with the Nature of the Electronic Letter of Credit Transaction and the Presentation of the Documents, in particular, the Bolero Bill of Lading.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.20
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• pp.8809-8814
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• 2014

The objective of this paper is to present the implementation and process evaluation of the first computer tailored program for smoking cessation among Romanian smokers. The program targeted adult smokers who declared the intention to quit smoking in the next six months. The intervention consisted of a letter tailored to several respondent characteristics: gender, cognitive variables (attitude, social influence, and self-efficacy), intention to quit smoking, goal and relapse prevention strategies (action and coping plans), and smoking behaviour. The first 80 participants entered into the program filled in a process evaluation questionnaire one month after the intervention. The results of our study confirmed that the participants had read and remembered the letter. Moreover, new for Romania, this approach was positively appreciated by the participant and the score received for the tailored letter was high. The opinions of the participants confirmed that the tailored letter provided information that was useful, trustworthy and relevant for the individual. At the same time, the participants appreciated the polite, easy to understand content of the letter. These data underlined the premises for continuing the program and for using the information and communication technologies for healthy lifestyle promotion among Romanian population.

• The Korean Journal of Rehabilitation Nursing
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• v.17 no.1
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• pp.18-26
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• 2014

Purpose: To improve the family functioning, fear of death and depression among the terminally ill cancer patients, the effects of letter as an independent nursing intervention were identified. Methods: Non-equivalent control group pre and post test design was used. Subjects were 60 patients and their family members who were hospitalized at hospice units of an university-affiliated hospital. Patients and their family members were encouraged to write a letter to each other at least 4 times for 2 weeks. Results: Family functioning, fear of death and depression in the experimental group were significantly more improved after intervention than those of control group, even depression of experimental group before intervention was worse than that of control group. Conclusion: Writing a letter to family members is worth to use as an independent nursing intervention for terminally ill patients. It is recommended that further study to identify the potential of letters as an independent nursing intervention is implemented for various patients.

• Journal of the Ergonomics Society of Korea
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• v.16 no.2
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• pp.29-38
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• 1997

The research on the factors which effect on legibility is mainly utilized as the basic data of selecting the standard guideline of VDT screen. But the research on Korean is scarcer than that of English. Furthermore, it is unreasonable to apply the results of the foreign language to Korean, beause of the difference between the typography of English and that of Korean. Therefore, more systematic and ergonomic research of the Korean typography on VDT screen is needed. In this paper, an experimental study on search speed and error rate is designed and performed according to different Korean letter size and font on search task with VDT. The experimental screen based on popular Ming and Gothic style is made up of total 12 artificial screens, each 6 different font size. As the criteria of the performance, searching speed(s.s.) and error rate (e) are selected, and CFF value is measured to evaluate user's visual fatigue. The results of experiment in font show that the Korean Gothic style is superior to the Korean Ming style in user's visual performance. The letter size that gives user the optimal performance ranges from the visual angle 39.8' to 55.5' in Ming style, from the visual angle 39.8' to 52.6' in Gothic systle. In visual fatigue experiment, the better performance of letter size is, the less tired user feels. And the smaller letter size is, the more tired user feels. There is no relationship between font and user's visual fatigue.

• Proceedings of the IEEK Conference
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• 2003.11a
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• pp.27-30
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• 2003

In this paper a new approach of digitalized ‘Takbon’ is introduced. By image signal processing, the letters which were written on stones can be deciphered. Epigraphic letter is detected by digital image device, digital camera. The two dimensional digital image is preprocessed because of sensor noise and detective turbulence. Color image is transformed into grey level. The letter image is analyzed in time/frequency domain. By the resultant analysis data decisive functions are calculated. Signal Processing techniques, such as scaling, clipping, digital negative, high/low filter, morphology and so on, provide algorithms that can extract letter from stones.

• Proceedings of the Korea Contents Association Conference
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• 2019.05a
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• pp.227-228
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• 2019

This study examines the features of Korean EFL students' letter writing at a university in Korea. The data comprised interviews and examples of letter writing. The findings revealed that students engaged in unique ways in which they oriented their meaning-making to broad views concerning rhetorics and components. Students' approaches involved a particular context and the recontextualized English formal letter, which reflects their textual interactions in writing. This paper concludes that specific discourse communities, life-world, and learning purposes impact on students' English writing.

• Proceedings of the KSPS conference
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• 2002.11a
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• pp.97-100
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• 2002

The purpose of this paper is to investigate the unit of neighbor of Korean words. In English, a word's orthographic neighborhood is defined as the set of words that can be created by changing one letter of the word while preserving letter positions. For example, the words like pike, pole, and tile are all orthographic neighbors of the word 'pile'. In this study, 2 experiments were performed. In these experiments, 4 conditions of prime were included: primes sharing first letter of first syllable(1), first syllable(2), first syllable and the first letter of second syllable with target(3) and with no formal similarity with target(4). In Exp.1, RT was shortest in condition 3. In Exp.2, condition 2 had the shortest RT. We came to the conclusion that in Korean, a word's neighbor is words that share at least one syllable with the word.

• Journal of Arbitration Studies
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• v.9 no.1
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• pp.233-263
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• 1999

The issuing bank performs an important role than any other parties concerned in letter of credit transaction. Nonperformance of obligation by the issuing bank frustrates whole letter of credit transaction and makes serious effect on both beneficiary and applicant. The purpose of this paper is to analyze the nonperformance of obligation by the issuing bank and to present some problems and countermeasures. For this purpose, the author examines five kinds of cases on nonperformance of obligation by the issuing bank ; improper honor relating to examination of documents, improper honor not relating to examination of documents, improper dishonor relating to examination of documents, improper dishonor relating to handling procedure of documents, and improper dishonor not relevant to letter of credit transaction.