• School Mathematics
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• v.1 no.2
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• pp.637-660
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• 1999

Although ‘to understand mathematics’ is an important educational purpose, most student do not have a relational understanding of the basic concept of mathematics but have a instrumental understanding. This paper will investigate the possibility of using computers for enhancing relational understanding. In the ‘Qualitative case study’, three students who are in the first grade at E-High school took part in 7 activities during four weeks, and were later interviewed and engaged in informal discussion and were observed. This is the result of this study. 1. The three students were passive participants in mathematics problem solving situation at school. Therefore, student B just applied formulas which she had memorized, and student C would forgot the formulas occasionally. These common students needed to participate actively in doing mathematics. 2. The activities utilized two software healing with connection between graphs and function, giving the students the opportunity to plan, practice, and test by themselves. As a result, they understood the mathematical formulas and rules more deeply through their own trial and error, and then they gained thinking abilities necessary for doing mathematics. In addition, the activities boosted their confidence. 3. The understanding type of students was slightly different. Student A who received a high score, understood the most relationally, but student B who received a very high score, understood instrumentally and so couldn't app1y her knowledge to solving problems related to function concept. Student C who received a middle score lacked knowledge of mathematics but thought more creatively. The result is that students need an opportunity to think rotationally regardless of score. Therefore, this study concludes that using computer software will provide a positive effect for relational understanding in loaming function concept.

• The Korean Journal of Rehabilitation Nursing
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• v.3 no.1
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• pp.5-14
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• 2000

Stroke patients have increased with the overall aging of our population, 60 years and older. Recently the number of stroke patients has been on the increase even among younger people in their thirties. The family support is frequently mentioned as a major variable which plays an important role in helping the patients adapt themselves to their hemiplegic situations. The purpose of the study was to examine between family support and activities of daily living(ADLs)abilities for the hemiplegic patients, and to provide the basic data to help the patients carry out their ADLs on their own. The sample for the study included 106 hemiplegic patients and their family members. The data were collected using a focused, structured interviews. The major findings of the study were as follows: 1. The hemiplegic patients perceived that their family supports were very high(Mean, 49.00). 2. The degree of family support was significantly higher in female. high economic status, and non-use of brace patients than in male, poor economic status, use of brace patients. 3. The ADL abilities of the hemiplegic patients were significantly higher in ambulatory, younger, and longer-period-of-illness patients and patients who used a cane as a assistive device. 4. The family support for the hemiplegic patients showed a statistically significant Cor relationship with their performance of ADL(r=.30809. p=0.0013). 5. The performance of ADL for the ambulatory patients were mainly affected by the degree of family support, the period of the hemiplegic illness, the use of brace, informal care giving, and the age. These variables explained 50% of variance. 6. The length of illness was a statistically significant affecting variable for ADL performance in OPD and assistive device in IPD. In conclusion, the higher the hemiplegic patients perceived the degree of family support, the better they performed ADL. We should develop nursing methods which enhance the family support for the hemiplegic patients in order to increase their performance of ADL.

• Journal of the Korean Institute of Telematics and Electronics
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• v.22 no.5
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• pp.29-38
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• 1985

In this paper we have designed and implemented in real time a simple, efficient and flexible AOPCM cosec using a high speed digital processor, NEC 7720. For ADPCM system, we have used an instantaneous adaptive quantizer and a first-order fixed predictor. The software for NEC 7720 has been developed and it was found that the NEC 7720 was capable of performing the entire ADPCAt algorithm for 4 channels in real time as optimizing the program. Computer simulation has born made to investigate a computational accuracr of NEC 7720 and to de-termine necessary parameters for a ADPCM codec. Real telephone speech, RC-shaped Gaussian noise and 1004 Hz tone signal were used for simulation. In simulation, the parameters werc optimized from the computed SNR and the informal listening test. The developed software was tested in real time operation using a hardware emulator for NEC 7720. It took a maximum 23.25$\mu$s to encode one sample and 113.5$\mu$s, including all the necessary 1/0 operations, to encode 4 channels. In the case of decoding process, it took 24.75$\mu$s to decode one sample and 119.5$\mu$s to decode 4 channels.

• Journal of the East Asian Society of Dietary Life
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• v.19 no.1
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• pp.105-115
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• 2009

This study was conducted to investigate food purchasing management and the perception of school dietitians regarding food quality standards in the Chonbuk area of Korea. Self-administered questionnaires were collected from a total 205 dietitians and then evaluated using SPSS v. 11.5. The results are summarized as follows. Among the 205 school foodservice systems evaluated, 63.4% used a conventional system, while 36.6% were operated in a commissary manner. In addition, 64.9% of the schools had a menu cycle of 1 week (p<0.05) and 72.2% of the dietitians were responsible for the entire purchasing process (p<0.05). Moreover, a dietitian, school staff, foodservice staff, and parents participated in receiving and inspection of the food at 95.6% of the schools. Additionally, wholesalers and informal purchasing were preferred for purchasing food supplies. Moreover, 33.3% of dietitians in the commissary systems responded that they made Kimchi themselves instead of purchasing it (p<0.01). When the dietician's perception of food quality was evaluated, the average score was 3.33 based on a 5-point scale, although the scores differed significantly between dieticians working in conventional systems and those working in commissary systems (p<0.05). The scores for the quality standards related to the GMO agricultural and pesticide residues were the lowest. These findings indicate that it is necessary to develop standardized food quality and purchasing criteria and to provide education regarding these criteria to school dietitians to enable them to improve their knowledge regarding food quality standards and to implement effective purchasing programs.

• The Journal of the Acoustical Society of Korea
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• v.21 no.5
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• pp.462-470
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• 2002

Wideband speech, characterized by a bandwidth of 50∼7000 ㎐, sounds more natural and intelligible, and is less tiring to listen to when compared to narrowband speech characterized by a bandwidth of 300∼3400 ㎐. Wideband speech coders, however, have not been as successful as the narrowband speech coders because of their higher bit rate. In this paper, we propose a new wideband speech coder which combines the European standard of a narrowband speech coder, i.e., GSM-EFR, and a transform coder using the discrete wavelet transform. The proposed wideband speech coder operates as follows input speech is first split into two subbands with equal bandwidth and the two subband signals are coded and decoded by each subband coder. A GSM-EFR is adopted as a lower subband coder and a subband coder with wavelet transformed speech is designed for a upper subband coder. The total bit rate of the proposed coder is 18.9kbps (12.2 kbps for lower band coder and 6.7 kbps for upper band coder), and informal listening test results have shown that the proposed coder has comparable speech quality to that of G.722 with 56 kbps.

• The Research Journal of the Costume Culture
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• v.18 no.2
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• pp.290-303
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• 2010

In this research, I compared and analyzed the 'factors of style' that expresses and visualizes the 'characteristics of characters' and the characters from three movies each that was filmed with Kang Ho Song and Keong Ku Seol who acted in many movies both. As the result, for the factors for actors' makeup design, since they have limited choices of textures, colors, and the range of changes, changing the tone of skin to light to dark implied the images of characteristics. Somewhat dark skin tone that was like tanned skin expressed the life style of the character who works for an active profession not for an intellectual position. For the factors of hair style, medium sized wavy hair that goes straight down forehead expressed the character's familiar and informal personality while short cut sized all back style hair expressed confidence, sociality, and logical personality of the character. The actors' costume was important to express the characteristics of characters such as changes of their mind, especially the costumes delivered symbolic meanings of the role of their social class, profession, and their financial state. In addition, there were common factors to create and design a character in terms of the changes of the actors' body shape; when the actor acted the character who has conflicts inside and sarcastic personality, they lost weight on purpose while they gained weight and made a barrel shaped body to act the character who is positive in every occasion and does not realize the real world or who is greed.

• Journal of Korea Technology Innovation Society
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• v.13 no.2
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• pp.332-364
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• 2010

External linkages affect the performance of small and medium enterprises in diverse ways. This study delves into the impact of inter-organizational collaboration by looking at different facets of performance, such as innovation, sales growth, profit growth, and firm survival. In addition, it explores the influence of informal knowledge spillover from collaborative partners as well as from formal collaborations. The impact is carefully investigated by dividing firm samples into three different sectoral innovation categories: supplier-dominant, production-intensive, and science-based sector suggested by Pavitt (1984). The result highlights the different influence pattern of collaborative relations by partner types according to sectoral categories. The positive results of collaborating with universities and public institutions are identified, and the sales growth by customer linkage is witnessed. The impact is apparent in science-based sectors. The result implies that the risk associated with collaborating with competitors may be moderated by linking performance enhancing collaborative linkages with universities and government institutes.

• Journal of Arbitration Studies
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• v.12 no.2
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• pp.337-372
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• 2003

Given the difficulties investors would encounter in pleading and proving their claims in court, they may well be better off in a system where less attention is paid to the law and more to the equities of the actual dispute before the arbitration panel. While this is not a system where accountability and predictability of results can be achieved, investors may fare better than they might expect. It follows then that if equitable considerations enhance rather than subtract from investors' chances of recovery, then investors need not worry about the consequences of the arbitrators' failure to apply the law. This article tracked the evolution of the arbitration process, through amendments to the pertinent securities arbitration codes of procedure, from an informal proceeding into a quasi-judicial one. Subsequently, I examined the practical difficulties arbitrators encounter in their efforts to apply the law. The Court in McMahon assumed arbitrators would apply the law and that the “manifest disregard” standard would provide sufficient judicial oversight to ensure that they did. But there is no meaningful review of arbitration awards to assure arbitrators are applying the law. Arbitration awards have no value as precedent for future arbitrations. Accordingly, there appears to be little reason to write such an award, particularly if the end result is an award immune from challenge no matter how the panel ruled. In these days, securities arbitration as a disputes resolution system is becoming a more popular practice. The trend of the courts in America has been to enforce arbitration agreements. Moreover arbitration helps alleviate some of the burden of a heavy caseload from the judiciary and is a viable method to resolve disputes in a relatively quick and efficient manner. Therefore I think it would be necessary to introduce securities arbitration system to our disputes resolution system Compared to American practices, there could be, of course, many differences in recognition on arbitration and legal structure in our country. Thus it will be an assignment to consider seriously and carefully what kind of securities arbitration system will be proper for us.

• Journal of The Korean Association For Science Education
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• v.33 no.2
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• pp.359-372
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• 2013

This study aims to investigate the current status of science museum in terms of evaluating its organization, management, and education program. The analytical framework developed for examination are as follows: First, the lack of professional staff in most target museums is the biggest impediment for domestic science museums to function properly. Second, funding has been very poor. Third, most museums failed to properly sustain exhibits, equipment, and facilities. Fourth, various advertising and marketing efforts for attracting more visitors are hardly done. And lastly, the domestic museums made little effort in pursuing research focusing on improving exhibitions and education program. Based on these findings, the future directions for domestic science museums to step-up opportunities have been discussed in this study.

• Journal of the Korean Dietetic Association
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• v.17 no.1
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• pp.58-71
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• 2011

The purpose of this study was to investigate the perceptions of an unbalanced diet by elementary school students using a qualitative approach to nutrition counseling. To achieve the purpose of this study, client-centered counseling was performed over one semester with four volunteer children in the fifth grade who admitted eating an unbalanced diet. Their perceptions of an unbalanced diet were examined while focusing on cause. The contents of the counseling sessions were recorded and their eating habits observed. The proposed perceptions of the clients of an unbalanced diet were as follows: regarding the causes of an unbalanced diet, there may have been a certain negative event or memory related to food as well as an individual disease or history of disease; regarding the meaning of an unbalanced diet, the clients had two kinds of time concepts (formal one and informal one) and defined the meaning of an unbalanced diet as a matter of being able to eat proper amounts of food within an inter-meal time; and regarding the results of an unbalanced diet, they based their results on the approval of their parents and teachers. Feeding at school was used as the background of this study, which examined the meanings and results of an unbalanced diet, and there existed a correlation between the meanings and the results.