• Journal of the Korean Society for Heat Treatment
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• v.36 no.6
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• pp.412-421
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• 2023

As the demand for mechatronic systems and high performance increases in the machinery industry, the importance of improving friction characteristics is emphasized. During relative movement of objects, friction and wear occur on two surfaces in contact, and various methods are being designed to increase the lifespan and energy efficiency of machines. The energy increase effect using lubricants is a well-known method. In this study, a micro-sized rectangular grid pattern was produced by applying a precise micro-pattern photo lithography process. Rectangular grid patterns of the same shape and friction behavior according to the size of the pattern were produced in convex and concave shapes, and the tribological characteristics of each were analyzed.

• Journal of the Korean Data and Information Science Society
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• v.20 no.2
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• pp.377-385
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• 2009

Twenty five female students in Seoul participated and were divided into two group in the experiment of weight loss effect of two treatments. Fourteen students(Treatment A group), randomly chosen from the students, had fed on diet foods and exercised over 8 weeks, and the remaining students(Treatment B group) had fed on diet foods only for the same periods. Weights of 25 students had been measured repeatedly four times at an interval of two weeks during 8 weeks, It resulted from mixed model analysis of repeated measurements data that separate Toeplitz pattern for each treatment group was selected as the optimal covariance pattern. Based upon the optimal covariance pattern model, the baseline effect and time effect were found to be highly significant, but the treatment-time interaction effect was found to be insignificant. Finally, the students with diet foods and exercises were more effective in losing weight than the students with only diet foods were.

• Journal of Physiology & Pathology in Korean Medicine
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• v.23 no.3
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• pp.534-539
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• 2009

Deficiency and excess pattern differentiation is unique characteristic of traditional oriental medicine on diagnosis and treatment. This differentiation is accomplished through pulse, tongue diagnosis and question examination, but most of these processes need to be objectified for efficacious treatment and traditional medicine development. In this study, we developed the deficiency and excess pattern questionnaire for objectification of question examination. The deficiency and excess pattern questionnaire was made out through The Traditional Oriental Medical Literature with Delphi Technique. Patients who visited oriental medical hospital filled out the questionnaire by themselves. Diagnosis of deficiency and excess pattern are conducted separately by oriental medical doctors with more than 5 years' clinical experience. Various physical condition factors were derived for the deficiency and excess pattern questionnaire. (Ordinary health degree, pain pattern, fatigue, weight change, sweating, uncomfortable awareness on chest and abdomen) Deficiency symptoms group acquired internal consistency, but excess symptoms group did not. (Cronbach's ${\alpha}$ > 0.6) There were significant associations between doctor's diagnosis and deficiency and excess symptoms in 'ordinary heath degree', 'voice weakening', and 'chest distress' (p-value < 0.1) There were significant differences between deficiency and excess syndrome patients groups in deficiency questionnaire score but there were no significant differences between deficiency and excess syndrome patients groups in excess questionnaire score. We acquired the internal consistency and significant result of deficiency pattern questionnaire, but we can find out some difficulties in development of the excess pattern questionnaire. These difficulties are associated with insufficiency description of traditional literature and small number of patients diagnosed as excess pattern.

• 대한치과교정학회:학술대회논문집
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• 1998.10a
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• pp.28-30
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• 1998

• Journal of the korean academy of Pediatric Dentistry
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• v.45 no.2
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• pp.215-224
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• 2018

The practice pattern of pediatric dentistry has been changing for the last several decades. This change might be influenced by several factors such as development in dental materials and socioeconomic changes. The purpose of this study was to analyze the changing trends of patient distribution and treatment pattern of pediatric dentistry. Patient distribution and practice trends from 2006 to 2015 at the department of pediatric dentistry of Seoul National University Dental Hospital were reviewed. From 2006 to 2015, the proportion of new patient increased from 12.49% to 20.56%. The average age of new patients decreased. In 2006, restorative treatment had highest percentage, followed by preventive treatment, orthodontic treatment, surgical treatment, and pulp treatment. In 2015, preventive treatment had highest percentage, followed by restorative treatment, orthodontic treatment, surgical treatment and pulp treatment Frequency of general anesthesia increased more than 5 times for last 10 years. The proportion of insurance treatment decreased until 2009, and after 2010 it increased steadily.

• Journal of Acupuncture Research
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• v.25 no.5
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• pp.17-25
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• 2008

Objectives : The authors performed this study to further understand Saam acupuncture treatment in an aspect of the use of two patterns i.e. fixed- and transformed-pattern. Methods : The authors did documentary survey based on Do Hae Kyo Kam Sa Am Do In Chim Beop. 1. We investigated the frequency of the use of fixed- and transformed-pattern as well as the examples of use. 2. We surveyed related literatures and classified transformed-pattern. We did study on the principles of prescriptions of fixed- and transformed-pattern and researched the utilization. Results and Conclusions : 1. Fixed-pattern occupys 35.3% and transformed-pattern takes much more part. 2. Fixed-pattern is based on Nangyoung 69nan, and has the prescription of two enhancement and two inhibition by adaptation of Sangsaengsanggeuk(相生相剋) into self meridian and other meridian, and suggests the importance of the order of needling. 3. There are main points and assistant points in tonifying and suppressing of Fixed-pattern, accordingly, it has a system like Gunshinjwasa(君臣佐使). 4. Transformed-pattern is classified into following 3 types: first, the use of Nangyoung 75nan; second, the substitution of Junghuyl(井穴) with Hyunghyul(滎穴) or Haphyul(合穴) according to Nangyoung 73nan; third, the substitution of the same Osuhyul(五輸穴) in other meridians.

• Journal of Sasang Constitutional Medicine
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• v.27 no.3
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• pp.346-355
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• 2015

Objectives The aim of this study was to report significant improvement of paresthesia and weakness in the limbs of unknown cause after treatment with Mangeummoonmu-tang and Cheongeummoonmu-tang in a Taeeumin patient. Methods The patient was diagnosed as Taeeumin Dry-Heat (Joyeol) pattern and treated with Mangeummoonmu-tang, Cheongeummoonmu-tang and acupuncture. The patient's subjective symptoms of paresthesia and weakness were observed using Global Assessment Scale (GAS) during the treatment period. Results and Conclusion The symptoms of paresthesia and weakness decreased from GAS 100 to GAS 0 for two weeks. Furthermore, the patient's symptoms of fatigue and xeroderma were reported to be improved after treatment. In conclusion, this study shows that Sasang constitutional medicine can be effective treatment for Taeeumin patient with paresthesia and weakness in the limbs of unknown cause.

• Journal of Sasang Constitutional Medicine
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• v.26 no.3
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• pp.328-337
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• 2014

Objectives The aim of this study was to report significant improvement of vertigo, tinnitus and aural fullness after treatment with Cheongsimyeonja-tang in a Taeeumin patient with Meniere's disease. Methods The patient was diagnosed with Taeeumin Dry-heat symptomatic pattern and treated with Cheongsimyeonja-tang and acupuncture. The patient's subjective symptoms of vertigo, tinnitus and aural fullness were observed using Global Assessment Scale (GAS) during the treatment period. Results & Conclusions The symptoms of vertigo, tinnitus and aural fullness decreased from GAS 100 to GAS 0 for seven weeks. Furthermore, the patient's symptoms of insomnia, urinary frequency, chest discomfort and fatigue were reported to be improved after treatment. In conclusion, this study shows that Sasang Constitutional Medicine can be effective treatment for Taeeumin patient with Meniere's disease diagnosed as Dry-heat symptomatic pattern.

• PNF and Movement
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• v.19 no.1
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• pp.97-104
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• 2021

Purpose: The human body can experience a variety of injuries. As a result, it may be difficult to directly treat the damaged area. In such a case, indirect treatment is required. Indirect treatment is typically PNF treatment. Morphological changes in muscle have been confirmed through several previous studies; however, few studies have analyzed neurological changes. Therefore, the purpose of this study was to determine how irradiation during resistance exercise using a diagonal pattern effects neurological excitability. Methods: Electromyography was performed on 13 healthy adults. A compound muscle action potential (CMAP) was obtained through a median motor nerve conduction velocity test, which was conducted before and after performing the irradiation exercise and general exercise. Results: Compared to baseline measurements, there was no significant difference in the latency of the irradiation exercise and general exercise. The amplitude of the CMAP measured after the irradiation exercise was significantly higher than after general exercise. Conclusion: Neurological excitability was high in irradiation during resistance exercise using a diagonal pattern. When clinically direct treatment is difficult, it is thought that irradiation can be used indirectly as a technique to induce nerve excitability.

• Journal of Oral Medicine and Pain
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• v.24 no.4
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• pp.439-453
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• 1999

This study was performed to investigate the masicatory efficiency in patients with temporomandibular disorders (TMDs), especially internal derangement of temporomandibular (TM) joint. For this study, 26 patients after treatment and 33 dental students who had no signs and symptoms of TMDs were selected as the patients group and as the normal group, respectively. Mean treatment duration of the patients was. 5.1 months. Verbal rating scale(VRS) and Visual analogue scale(VAS) were used for recording of subjective symptoms. Treatment index (VAS Ti) derived from VAS was calculated for evaluation of treatment progress and clinical examination was also performed for objective symptoms. BioEGN(Bioresearch Inc., Milwaukee, USA) was used for observation chewing movement pattern on peanut, caramel candy, and gum chewing. Chewing time in second and symptoms after chewing were recorded, and pattern of chewing stroke between in affected side and in contralateral side or between in right in left side were compared, and especially, gum chewing pattern between before and after treatment were also compared in the patients group. The data obtained were analysed by SPSS windows program and the results of this study were as follows : 1. Subjective symptoms evaluated by VAS showed no difference between the two groups, but those by VRS showed slight difference for TM joint pain, head not neck symptoms, and chewing ability. 2. There were no difference at the level of subjective symptoms between the subgroups divided by treatment duration of five months in the patients group. However, value of VAS Ti of pain was higher in subgroup of long treatment duration than that of subgroup of short treatment duration. 3. There were no difference in chewing time for peanut or caramel candy between the two groups, but on caramel candy chewing, the patients group complained slight discomfort after swallowing. Chewing velocity and range of motion on gum chewing after treatment in the patients group showed significant difference and greatly improved compared to those to before treatment, and which were not differ from those of normal subjects. In conclusion, treatment of temporomandibular disorders about for five months would greatly improve chewing ability and movement pattern in most of the patients with TMDs.