• Proceedings of the Korean Society of Marine Engineers Conference
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• 2005.11a
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• pp.160-161
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• 2005

It is important to manage artificial fish reefs with installation for restoration. The instruments of survey for artificial reefs condition(location, amount etc.) is Side Scan Sonar and Multi-beam sonar. The efficient and economic survey of the artificial reefs facility is the complete survey of the SSS(Side Scan Sonar) in all area first and then the survey of the artificial reefs by MBES(Multi Beam Echo Sounder) in the finding area.

• Bulletin of the Korean Space Science Society
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• 2007.10a
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• pp.56.1-56.1
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• 2007

• Journal of the korean Society of Automotive Engineers
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• v.9 no.1
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• pp.57-68
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• 1987

The driving pattern was studied in Seoul along nineteen representative routes using a test car equipped with all the instruments required for recording traffic flow and measuring fuel consumption. Speed histories, gear shift points, instantaneous fuel consumption rates, etc. were recorded and the data were anlyzed to determine the traffic characteristics for Seoul. The Seoul-14 Mode has been developed to simulated actual driving conditions in Seoul with respect to fuel consumption. The average speed of the Seoul-14 Mode is 30.1 Km/h and the Mode length is 11.94 Km.

• The Journal of the Acoustical Society of Korea
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• v.28 no.3
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• pp.229-238
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• 2009

This paper describes a sound engine of Korean traditional instruments, which are the Gayageum and Taepyeongso, by using a TMS320F2812. The Gayageum and Taepyeongso models based on commuted waveguide synthesis (CWS) are required to synthesize each sound. There is an instrument selection button to choose one of instruments in the proposed sound engine, and thus a corresponding sound is produced by the relative model at every certain time. Every synthesized sound sample is transmitted to a DAC (TLV5638) using SPI communication, and it is played through a speaker via an audio interface. The length of the delay line determines a fundamental frequency of a desired sound. In order to determine the length of the delay line, it is needed that the time for synthesizing a sound sample should be checked by using a GPIO. It takes $28.6{\mu}s$ for the Gayageum and $21{\mu}s$ for the Taepyeongso, respectively. It happens that each sound sample is synthesized and transferred to the DAC in an interrupt service routine (ISR) of the proposed sound engine. A timer of the TMS320F2812 has four events for generating interrupts. In this paper, the interrupt is happened by using the period matching event of it, and the ISR is called whenever the interrupt happens, $60{\mu}s$. Compared to original sounds with their spectra, the results are good enough to represent timbres of instruments except 'Mu, Hwang, Tae, Joong' of the Taepyeongso. Moreover, only one sound is produced when playing the Taepyeongso and it takes $21{\mu}s$ for the real-time playing. In the case of the Gayageum, players usually use their two fingers (thumb and middle finger or thumb and index finger), so it takes $57.2{\mu}s$ for the real-time playing.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2006.11a
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• pp.11-16
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• 2006

It appraises that use an indoor noise standard, a NC value which is a noise appraisal, a dB(A) value, a N value in foreign country because it doesn't yet ready an appraisal standard in domestic. Also, It appraises that the supply and drainage noise which could change water supply pressure, $4kg/cm^2,\;3kg/cm^2,\;2kg/cm^2,\;1.5kg/cm^2,\;1kg/cm^2$, bring about a noise and inquires how does noise level indicates according to each instruments. In case of a water supply pressure standard, $3kg/cm^2$, a C-605is $3{\sim}5dB(A)$ lower than another instruments in directly overhead stories. It appears that all of them is similar to level in directly under level except c-407(2)Analyzed the NC value, c-605is the lowest level, NC-50, of a water supply pressure, $4.0kg/cm^2$, c-407 is the highest level, NC-55.(3) In case of N value, which is one of water supply methods in Japan, it is the lowest level, N-55, of a water supply pressure, $4.0kg/cm^2$ same as NC value and C-407is the highest level, N-60.(4) In case of water supply that is likely to noise level, It appears 6dB(A) level gap each instruments, and C-605 is the lowest level, 63.9dB(A).

• School Mathematics
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• v.15 no.2
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• pp.263-288
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• 2013

This study was conducted to provide practical ways to apply interview assessments in classrooms. Interview assessments have been asserted to serve as one of the alternatives to the traditional paper-and-pencil tests. In order to propose ways for teachers to actively use interview assessments for mathematics assessments, relevant instruments were developed by analyzing a number of related theories. These instruments were developed in two forms: interview assessments focused on identifying student characteristics and those focused on identifying thought processes. The interview assessments were applied in classroom settings and the results of this application were analyzed. The findings from this study are expected to suggest beneficial implications for teachers who are interested in practicing interview assessments in classrooms.

• The Journal of the Korea Contents Association
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• v.12 no.3
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• pp.487-497
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• 2012

The purpose of this study is to increase the level of learning achievement and satisfaction by developing of on-line learning instruments. This study was to investigate the relationship among learning instrumments(lecture, homeworks, on-line interaction and off-line interaction), learning achievement and learning satisfaction. This survey was conducted 226 responses of e-learning social welfare education learners. Research method used Amos 18. Result indicated that homeworks and off-line interactive instruments had a positive effect on learning achievement and satisfaction. And lecture had a positive effect on learning satisfaction, but on-line mode interaction instruments had no effect. In order to improve the effectiveness of learning, structural development of activity learning instrument is necessary. And to foster learning satisfaction, it will be necessary to increase the learning achievement.

• The Journal of the Korea Contents Association
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• v.13 no.3
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• pp.456-467
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• 2013

The purpose of this study is to increase the level of learning achievement by on-line learning instruments and self-regulated learning. The study were to investigate the 3 learning instrument-lecture, homework, participation-self related learning strategy, learning achievement. This Survey was conducted 226 responses of e-learning social welfare education learners. For this research, Amos 18 is used. The research findings can be summarized as the following. Lecture, homework and participation is indicated significantly affecting self-regulated learning and self-regulated learning is indicated significantly affecting learning achievement. And learning instruments has not statically significant direct effect on the learning achievement but learning instruments has statically significant indirect effect on the learning achievemen and the self-regulated.

• Korean Journal of Adult Nursing
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• v.21 no.6
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• pp.691-704
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• 2009

Purpose: The purpose of this study was to identify the research trends and instruments for assessment of sleep quality in Korea. Methods: 66 quantitative research reports published from 2000 to March 2009 in Korea were selected from 5 databases: RISS4U, KISS, KISTI, DBpia, and the National Assembly Library and were analyzed according to criteria such as publication years, type of journal, participants, study fields, research design, participants, key words and instruments for assessment. Results: Research in sleep quality has been rapidly increasing in recent years. More than half of the research analyzed was conducted in nursing. The majority of research methods were survey and correlational research. Patients with chronic illness and the elderly were the major subjects in those researches. Most research was performed based on hospitals and communities. The types of variables tested for their relation and influence on sleep quality were quite limited. With respect to the instrument used for assessing sleep quality, most studies did not consider whether or not the validity of their instrument had been established. Conclusion: It is recommended to conduct clinically applicable interventional research with an experimental design and to develop a reliability and validity established sleep quality instrument for Koreans.

• Asian Oncology Nursing
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• v.10 no.1
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• pp.10-18
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• 2010

Purpose: This study was intended to identify the patterns of fatigue and its related factors in patients with stomach cancer during chemotherapy. Methods: Thirty participants (24 males and 6 females) were recruited for this study which utilized a longitudinal and descriptive approach. The research instruments included the Revised Piper Fatigue Scale, Symptom Distress Scale, and Linear Analogue Self Assessment Scale. The participants received 5-FU and Adriamycin at the first week and 5-FU only at the second and third week. The instruments were measured six times in total. The data were analyzed using SPSS 17.0. Results: It was found that fatigue scores in patients with stomach cancer, receiving 5-FU and Adriamycin (FA) regimen, reached the highest level on the third day (F=9.37, p=.024) after the initial infusion, and decreased gradually afterward. The symptom and psychological distress scores illustrated very similar pattern. The concept of multidimensionality of fatigue in patients with stomach cancer was supported in this study, showing that all four dimensions of the scale were positively correlated. Conclusion: The results of this study provided useful information of patients with stomach cancer on fatigue and other related symptoms which they experienced during weekly scheduled chemotherapy with FA regimen.