• Journal of Korean Physical Therapy Science
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• v.5 no.1
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• pp.549-556
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• 1998

To survey the recognition of Community Based Rehabilitation(CBR) by Public Health Center(PHC) Physical Therapists in Seoul Province. This study analysed general characteristic of Physical Therapists and cognition, participation, education, problems and requirements for CBR. The subjects of this study were 31 therapists who work at PHC in Seoul Province and Seoul City Childerns Municipal Hospital. Data was collected for 18 days from April 13 to 31, 1998 and results computed from 25 responses. First, Female therapists outnumber males. The age category 30 to 35 old represented 44.0% of the total number studied. 48.0% of therapists had worked more than 7 years and therapists usually 84.0% worked from 3 to 4 years at the PHC. Junior colleage graduates were 72.0%, and respondents with family responsibility were 52.0%. Second, Recently pain control and therapeutic exercises has become the major requirement of patients at PHC(56.0%). If the offered expanded services, a rehabilitation programe at PHC(36.0%) was highly. When asked about a working guide book, nobody had one. Third, 64.0% of therapists were aware of the present level of CBR, 28.0% of them had gotten an information from newspaper and mass media. Fourth, For CBR, 72.0% had positive ideas in which they could participate. 56.0% wished to compose a team of various rehabilitation specialists. 52.0% wished for the meeting day to be flexible and 64.0% desired to meet once or twice a week. Fifth, Almost all(92.0%) desired more educational opportunity about CBR. Example, once or twice a year(48.0%) and training period of 4 to 7 day(44.0%). They wanted to learn theory and parctice together(88.0%) and 48.0% wanted national mutirehabilitation center as a educational managing organization. Sixth, The most important requirement for accomplishing CBR by Physical Therapists was job security and adequate number of therapists(48.0%). Required number of physical therapists in the PHC was 3(52.0%). The cooperative agency should be the distict govement(32.0%) and community welfare center of the disabled persons(32.0%). Factors inhibiting the execution of CBR were lack of physical therapists(56.0%), and equipments for pain control and for therapeutic exercises(68.0%).

• Korean Journal of Ichthyology
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• v.24 no.3
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• pp.167-176
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• 2012

In comparison of the body color of Zacco platypys from Korea, it was found that there were significant differences among geographical populations in the color of upper eye, snout tip and anterior margin of pectoral fin. In individuals with red upper eye the snout tip was red but in those with black upper eye red color did not appeared on the snout tip. There was no difference between male and female in this characteristic and it was expressed uniformly within the same population. So we divided Z. platypus into two types by the color of upper eye; R type with red upper eye and B type with black upper eye. Red band on anterior margin of pectoral fins appeared in all males of both R and B type populations but in females it appeared only in B type individuals. The two types shown different distribution pattern in Korean Peninsula. R type distributed in almost whole area but B type distributed only in southeastern part of the peninsula: Nakdong, Hyeongsan, Taehwa, Suyeong and Jinjeon River. In analysis of external morphology among two types of Z. platypus from Korea and Z. platypus from Japan, there were no significant differences. But they were relatively well separated in discriminant function analysis.

• Journal of the Korean Wood Science and Technology
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• v.36 no.6
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• pp.69-76
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• 2008

To estimate removal ability of harmful gas by charcoal, we carbonized Red oak (Quercus mongolica Fischer) wood and Larch (Larix leptoepis) bark at $300^{\circ}C$, $600^{\circ}C$ and $900^{\circ}C$ for 1 hour. Gas removal ratios was increased with carbonization temperature but there is no difference between wood and bark charcoal. In the case of bad smell and VOC gas, woody charcoal including bark charcoal carbonized at $300^{\circ}C$ showed low removal ratio, less than 50%, whereas woody charcoals which was carbonized at more than $600^{\circ}C$ reached almost 100% removal ratio to bad smell gas such as trimethylamine, methymercaptan, hydrogen sulfide, and to VOC such as benzene, toluene, xylene in $5{\ell}$ tedler bag with each gas of 100 ppm. It was thought that because charcoals carbonized at high temperature, for example, $600^{\circ}C$ or $900^{\circ}C$ have enough specific surface area to adsorb gas of 100 ppm. Moreover these charcoals rapidly removed almost gas in 10 minutes. However, acetylene, $SO_2$ and $NO_2$, charcoals which was carbonized more than $600^{\circ}C$ and which showed high removal ratio had low gas removal ratio of 40% at even 4 hours adsorption. It was concluded that adsorptive ability of woody charcoal was mainly influenced with carbonizing temperature, so that different charcoals carbonized at different temperature brings different gas removal ratio because these charcoals have not only different physical factor such as specific surface area but different chemical characteristic such as functional group, expected.

• Journal of Korean Academy of Nursing
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• v.1 no.1
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• pp.111-132
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• 1970

An analysis of nursing activities in a in-patient ward and its management was observed in order to assess necessary number of nursing hands and find out reasonable work management with them. The study was performed with two wards of St. Mary′s Hospital, Catholic Medical Center, for the period from July to December 1970. The results and conclusions were as the following 1. The role of the nurses are determined by doctor′s order in 57.7% in kind, 80.0% in amount. and by nurses decision 20.0% in amount. 2. Works related to patient care are found to be 20.6% in the internal medicine ward and 20.4% in the surgical ward while works related to treatment are 4.7% in the former and 27.2% in the letter. Medication occupies 40.0% in the internal medical ward while 26.6% in the surgery ward, and observation occupies 34.7% in the former while 25.8% in the letter. These can be said to reflect characteristic differences bet ween the two wards. 3. When nursing functions were evaluated by importance "A" level in the amount of works to be done occupied 67.6% in the surgical ward and 62.8% in the internal medical ward. In the kind of the important works, "B"level is found to be most frequent with 50% while "A"level 43%. When evaluated by difficulty, "B"level was found to be most frequent in amount in both internal medicine and surgical wards (52.6%, 38.2%). 4. Works needing professional knowledge and skills occupied 92% in the both wards while unprofessional works 2.8% and 4.2% respectively. There are indications, however, that unprofessional works have an increasing tendency. 5. When evaluated by the amount of works, the surgical ward has 11 nurses less and the internal medicine ward 3 nurses less then the necessary number of nursing staffs. There are shortage of 12 and 6 nurses respectively when evaluated by the number of patients and 18 nurses in the both wards when evaluated by the medical regulations of the Government. 6. The ratio of the nursing staff to patient was found to be 1:11.5, 1:23.0 and 1:34.5 in the morning, evening and night turn in the surgical ward. In the medical word the ratio was 1:9.4, 1:22.0 and 1:33.0. 7. The deficiency of necessary equipment and tension accompanying management of those equipment were found to lower the effective functioning of the head nurse who is a junior manager of the ward. They also consume much of the time and energy of the nurses at work who are over burdened in most of the cases. 8. The high rate of the number of nurses who leave the job impairs the functioning of team work which is considered to be most important in the effective performance of nursing activities and thus contributes to lower the efficiency of nursing functions.

• The Journal of Korean Physical Therapy
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• v.10 no.1
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• pp.75-80
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• 1998

To survey the recognition of Community Based Rehabilitation (CBR) by Public Health Center(PHC) Physical Therapists in Kyoungki Province. This study analysed general characteristic of Physical Therapists and congnition, participation, education, problems and requireanents for CBR. The objects of this study were 37 therapists who work at 27 of 39 PHC in Kyoungki province and data was collected for 20days from Jan. 12 to 31. 1998 and the results computed from 32 responses. First, Female therapists outnumber males. The age category 30 to 35 old represneted $56.2\%$ of the total number studied. $59.4\%$ of therapists had worked more than 7 years and therapists usually$(46.9\%)$ worked from 6 month to 2 years at the PHC. Junior college graduates were $84.4\%$, and respondents with family responsibilirt were $65.6\%$. Second, Recently pain control has become the major requirment of patiants at PH$(53.1\%)$. If they offered expaneded services - a rehabilitation program $(53.1\%)$, home vistation $(31.3\%)$. when asked about a working guide book, nobody had one. Third, $68.7\%$ of therapists were aware of the present level of CBR, $40.9\%$ of them had gotten an information from educated colleagues, and $68.7\%$ of therapists were aware of the present level of CBR, $86.4\%$ of therapists felt responsible to provide rehabilitation Fourth, For CBR, $93.7\%$ had positive ideas in which they could participate. $73.3\%$ wished to composed a team of various rehabilitational specialists. $73.3\%$ wished for the meeting day to be flexible and $86.6\%$ desired to meet once or twice a week. Fifth, Almost all$(96.9\%)$ desired more educational opportunity about CBR. Example, once or twice a year$(56.2\%)$ and training period of 4-7 days $(43.7\%)$. They wanted to learn theory and practice together$(74.2\%)$ and $74.2\%$ wanted the mational multi-rehabilitation center as a educational managing organization. Sixth, The most important requirment for accomplishing CBR by physical therapists was job security and an adequate number of therapists$(84.4\%)$ Required number of physical therapists in the PHC was 3 $(43.7\%)$. The cooperative agency should be the district goverment organization $(56.2\%)$. Factors inhibiting the execution of CBR were lack of administrative support, physical therapists, and equipments for pain control and for therapeutic exercise.

• Journal of the Korean Recycled Construction Resources Institute
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• v.7 no.4
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• pp.88-94
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• 2012

This study is conducted to utilize waste concrete powder made as a by-product manufacturing high quality recycled aggregate. The blaine fineness of the used waste concrete powder was 928 and $1,360cm^2/g$. As the main characteristic of waste concrete powder, it showed an angular type similar to cement, but hydrated products were attached on the surface of particles. In addition, the size of the particles of waste concrete powder was larger than OPC and in terms of chemical components it had higher $SiO_2$ contents. The viscosity of the paste that mixed waste concrete power decreased by 62% at the most, compared to the paste that only used OPC, and the final set time was delayed about two hours. As composition rates of waste concrete powder increased, the flow value decreased by 30% at the most according to the comparison with mortar that only used OPC, and sorptivity coefficients increased by 70%. The compressive strength of mortar decreased by 73% at the most as composition rates of waste concrete powder increased. According to the test results, it is desirable to use waste concrete powder by combining OPC appropriately(below 15%).

• Archives of design research
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• v.19 no.5 s.67
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• pp.5-16
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• 2006

The purpose of this research is to bring to the center of focus, the ad creativity, which in turn can generate the highest advertising effects. The study excludes external factors such as personal relationships, academic network and lobbying powers which were prevalent in the Korean situation. A transformational leader can influence charisma, inspiration, intellectual stimulation, individual consideration and performance goal. As the result of this study shows, the core competence that a C.D. may always want to possess at present as well as in the future is to "motivate inspiration". Charisma may be an ability currently in need but this may not necessarily be so in the future. It may be predicted that a softer quality, which is knowledge-based, that provides intellectual stimulation may be a more valued characteristic. It has been suggested that in the increasingly diversifying society of the future, charisma may be a barrier to enhancing creativity. In times of uncertainty and ambiguity, innovative ideas bring economic rewards (Cockayne, 2004). There may be conflicts of views and opinions between individuals and organizations. Turning these into positive outcome to produce innovative ideas, may be an area of further study. However, there must have been studies where informal networking has produced innovative ideas. Therefore, a transformational leader of an organization needs to investigate the dynamics of informal networking within his team.

• Journal of Food Hygiene and Safety
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• v.23 no.3
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• pp.191-197
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• 2008

This work was intended for the identification of markers that are found only in the spoiled red pepper powder. When analyzed by GC/MASS, the spoiled red pepper powder contains characteristic naphthalene derivatives, 1, 2, 3, 5, 6, 7, 8, $8\alpha$-octahydro-1, $8\alpha$-dimethyl-7-(1-methylethenyl)-naphthalene and 2-isopropenyl-$4\alpha$, 8-dimethyl-1, 2, 3, 4, $4\alpha$, 5, 6, $8\alpha$-octahydronaphthalene, which have not found in the normal red pepper powder. In addition, microscopic observation and microbial enumeration of the red pepper powder had been performed. Images by scanning electron microscopy showed that the surfaces of spoiled pepper powder were rough with many kinds of microbes, compared with those of normal red pepper powder. A good correlation between the bacterial and fungal counts in the same sample was observed and could be clearly classified into two groups, the normal and the spoiled group, by difference in the microbial counts. These results suggest that the spoiled red pepper powder can be identified by a combination of GC/MASS, microbial counts, and scanning electron microscopy.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.10
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• pp.330-338
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• 2018

The proportional-integral-derivative(PID) controller has been widely used in the industry because of its robust performance and simple structure in a wide range of operating conditions. However, the AVR(Automatic Voltage Regulator) as a control system is not robust to variations of the power system parameters. Therefore, it is necessary to use PID controller to increase the stability and performance of the AVR system. In this paper, a novel design method for determining the optimal PID controller parameters of an AVR system using the particle swarm optimization(PSO) algorithm is presented. The proposed approach has superior features, including easy implementation, stable convergence characteristic and good computational efficiency. In order to assist estimating the performance of the proposed PSO-PID controller, a new performance criterion function is also defined. This evaluation function is intended to reflect when the maximum percentage overshoot, the settling time are given as design specifications. The ITAE evaluation function should impose a penalty if the design specifications are violated, so that the PSO algorithm satisfies the specifications when searching for the PID controller parameter. Finally, through the computer simulations, the proposed PSO-PID controller not only satisfies the given design specifications for the terminal voltage step response, but also shows better control performance than other similar recent studies.

• The Journal of the Korea Contents Association
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• v.8 no.6
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• pp.1-7
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• 2008

The paper is to solve the problem of existing sound system, which has difficulties of system organization and the increase of additional install cost and unfriendly interior. To solve the existing system, we drew the new sound system based on PLC and studied it. A transmitter and a receiver were designed using the PLC chip INT5500CS. Sound system was configured with a CD player that sound signals are sent from the transmitter and a speaker connected to the receiver. For analysis of characteristics of this system, a USBPre external sound card and Smaart Live 5 which is a PC-based sound measuring program were added. As a result of our experiment, the measured signal level is $2{\sim}3$[dB] lower than reference signal, latency is 16.69[ms] and the specific character of coherency is bad in high frequency band. Otherwise, this system transmits and receives signals over 90[%] in good condition as a result of measuring pink noise, frequency(1kHz), and phase, magnitude. In view of the result so far achieved, the system designed our team has excellent performance, it resolves defect of existing audio signal transmition system.