• Journal of Oral Medicine and Pain
• /
• v.31 no.1
• /
• pp.101-111
• /
• 2006

Temporomandibular disorders (TMD) is a collective term embrassing a number of clinical problems that involve the masticatory musculature, the Temporomandibular joint and associated structures, or both. The prevalence of signs and symptoms associated with TMD can be best appreciated by examining epidemiologic studies. But domestic epidemiologic studies about sex, history, chief complaint, diagnosis were not sufficient comparing with foreign countries. The results obtained as follow. 1. The number of visiting patients were 6500 and mean age was 34.06 year (Male's mean age was 33.15, Female's 34.62). In the age of patients, there was no significant difference between sex. 2. There are most patients who were referred by dentist (80.07%). Most diagnostic group was arthrogenous TMD group and followed by myogenous TMD, soft tissue disease. 3. There was strong interaction between diagnostic groups and chief complaint. 4. There was little pain difference between right and left sides. Male mainly had pain onset under 6 month, but female had pain onset more than 6 month. 5. The number of patients who had joint sound history were 3445 (53.15%). There was no significant difference of pain onset between sex. Clicking sound was most among joint sounds which happened to patients. 6. In analyzing the parafunctional habit, male mainly had bruxism, but female had clenching habit.

• Journal of the military operations research society of Korea
• /
• v.35 no.2
• /
• pp.1-14
• /
• 2009

During wartime, the Air Force have to plan where, and how much, and what need to be distributed to surrounding local area from a chosen central bases. Each base, which has surplus more than needed amount of a certain material collected from near area of the base, is expected to distribute such surplus to other bases in shortage of it. By sending such surplus to other bases in shortage of the material, every base may get sufficient amount of all kinds of materials needed for each base during wartime. Because number of items of materials needed in each military bases during wartime are usually quite large and the frequencies of delivery from a place to other place are also pretty large if each item is delivered from a surplus place to other places in shortage, the Head Quarter of Air Force or the Logistics Command will face to difficulty to decide a reasonable delivery plan between bases for efficient and fast allocation of all materials needed to all bases during wartime. Therefore, this study suggests a solving algorithm with an established TC (transfer center: collecting and distributing center for all materials) to solve such a distribution and transportation problem.

• The Journal of the Convergence on Culture Technology
• /
• v.10 no.4
• /
• pp.451-456
• /
• 2024

This study aims to diagnose the military manpower shortage problem caused by the rapid decline in fertility and aging population in South Korea and explore countermeasures. To this end, it analyzes the trends of demographic changes and military manpower supply and demand forecasts in Korea, and evaluates major alternatives such as expanding female soldiers, introducing a voluntary recruitment system, and adopting advanced weapons. It also seeks to derive implications through case studies of military manpower policies in major countries such as the United States, Japan, and Germany. The results show that in order to secure sustainable manpower for the Korean military, it is necessary to increase the proportion of female soldiers, review the voluntary recruitment system from a long-term perspective, minimize the power gap due to troop reduction, strengthen incentives for skilled manpower, and draw social consensus on improving the military service system and defense reform. This study is expected to contribute to the establishment of future military manpower policies in Korea.

• Journal of Advanced Navigation Technology
• /
• v.15 no.4
• /
• pp.646-654
• /
• 2011

Recently, the task in which the number of people of the emergency medical technician whom it boards the ambulance is unreasonably insufficient and in which the fire fighter one person gets in the ambulance and which transfers the patient comes into question often. When the emergency patient is generated, it has to transfer to the special hospital in which above anything else, the measure which is quick and exact is needed and where there is the medical device which is suitable for particularly, the patient. This paper implementations the emergency medical system by the smart phone. The implemented system monitors the heart beat of the patient the monitoring among the patient transport with the real-time type. It can grasp the medical history information of the patient, and etc. in the past. And the system provides the emergency hospital which the patient requires and the pre-hospital phase provides the environment in which the disposition which is quick and efficient is possible to the emergency patient.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.16 no.5
• /
• pp.889-898
• /
• 2021

Currently, due to the demographic cliff phenomenon in Republic of Korea, A serious defense vacuum could occur due to the lack of South Korean military's personal strength. As a result, The South Korean military has a possibility to implement the polices the prepare for military provocations and preemptive strikes by the North Korean military while resolving the South Korean defense vacuum caused by the shrinking population. It seems like that the only way for the South Korean military to solve the shortage of personal strength due to the population decline is to reduce the number of Mechanized Units(MU) other than, infantry and automate, and autonomous driving the weapons system of the Mechanized Units(MU). In this paper, we propose the use of the virtual autonomous driving of the self propelled artillery K-9's in self selection of the position and occupation of position and self positioning in the position. At the same time in this paper, the self propelled artillery K-9 model robot is used to simulate and the explain about the operation method, necessity and feasibility in the self propelled artillery K-9. In addition, this paper predicted the problems that would arise if the South Korean military deployed autonomous driving self propelled K-9, in real combat.

• The Journal of Korean Academy of Prosthodontics
• /
• v.61 no.1
• /
• pp.33-43
• /
• 2023

Pathological wear across the entire dentition causes problems such as collapsed occlusal plane, reduced vertical dimension, anterior premature contact, inadequate anterior guidance, and tooth migration, thereby induce symptoms such as temporomandibular joint disorder, reduced masticatory efficiency, and tooth hypersensitivity. For the treatment of patients with excessive wear, evaluation of vertical dimension should be preceded along with analysis of the cause. The patient in this case was a 45-year-old female with a history of orthognathic surgery. Through clinical examination, radiographic examination, and model analysis, overall tooth wear, interdental spacing in the anterior maxillary region, retruded condylar position, and insufficient interocclusal space for prosthetic restoration were confirmed. Full mouth rehabilitation with increased vertical dimension was planned, the patient's adaptation to the new vertical dimension was evaluated with a removable occlusal splint and temporary prosthesis, and cross-mounting was performed based on the temporary restoration to fabricate the definitive zirconia prosthesis, maintaining the adjusted vertical dimension. It showed satisfactory functional and esthetic results through stable restoration of the occlusal relationship.

• Pediatric Infection and Vaccine
• /
• v.17 no.2
• /
• pp.91-100
• /
• 2010

Purpose : Recurrent otitis media (ROM) is usually defined as ${\geq}$3 distinct and well-documented episodes within 6 months or ${\geq}$4 episodes within 12 months. ROM is sufficiently important to warrant consideration of chemoprophylaxis, tympanostomy tube placement. There also is evidence that children with ROM are at risk for both hearing loss and speech delay. However, studies of ROM have been notably insufficient. In addition, even though environmental, racial, and sociocultural differences can affect risk factors, few studies have been conducted with regard to recurrent otitis media in Korea. Methods : This study was conducted from July 2009 to January 2010 with infants and children who were younger than 60 months old, who visited the out-patient clinics at Han-Il General Hospital and Kyunghee University Hospital. Data were collected by interview using a pre-formed sheet. Among a total of 892 infants and children, 457 were excluded, and the remaining 435 were allocated to 104 with ROM and 331 as a control group. Results : Attendance at daycare centers (P<0.001, OR=2.85), allergic rhinitis (P=0.026, OR=2.32), past history of bronchiolitis (P=0.003, OR=2.33), and low socioeconomic status (P=0.005, OR=2.00) were found to have a close significant correlation with ROM. Risk factors such as sex, having a sibling, breast-feeding, use of pacifiers, atopy, pneumococcal vaccination, influenza vaccination, smoking of parents, and indoor smoking are not relevant. Conclusion : Attendance at daycare centers, allergic rhinitis, past history of bronchiolitis, and low socioeconomic status have been identified as risk factors for ROM.

• Korean Journal of Psychosomatic Medicine
• /
• v.12 no.2
• /
• pp.103-121
• /
• 2004

Conversion disorder and factitious disorder should be ruled out before making diagnosis of malingering. For this work, inspection of patient's behavior along with complete neurological examinations, psychological tests, and meticulous psychiatric interview are necessary. Facial expression test, thermography, dynamometry were failed differentiating conversion disorders to the malingered pain and motor symptoms, however, controlled diagnostic block showed positive result partly in patients with regional or cervical pain syndrome. Chronic pain patients who are related to the process of litigation encounter stressful life situations which lead them into various neurobehavioral and psychosocial complications. Most of suspected malingered patients would not revealed pure form rather mixed with factitious and/or conversion features. At the time of increasing number of chronic patients associated with traffic accidents or industrial injuries who are involved in litigation, psychiatrist are needed sharp eyes and tenacity for evaluating malingering or medically unexplained symptoms.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.43 no.2
• /
• pp.213-220
• /
• 2016

In recent decades, dental erosion has received a considerable amount of attention with a steady increase of the prevalence. However, the awareness of this matter in our society, including dentistry is still lacking. Dental erosion is an irreversible loss of dental hard tissue leading to a complex condition. To prevent detrimental effects, it is important to detect conditions as early as possible and inhibit progression. In children and adolescents, early intervention is more important than in adults. As dental erosion is a multifactorial condition, dentists need to fully understand the phenomena and do systematic oral examination with thorough history taking for early diagnosis. When the main etiological factor is detected, it is necessary to make an effort to eliminate it and stop progression of the lesions with preventive measures. Restorative treatment should not be started unless substance loss reaches a certain level. Once the decision is made for treatment, care must be taken to choose the least invasive method.

• Convergence Security Journal
• /
• v.13 no.2
• /
• pp.165-173
• /
• 2013

This thesis is the study of the analysis about Direction of Promote and Acquisition Program of Human Strength. Now we have question 'How we should develop the human resources program to gain human strength in the strategic environment of the future?' We know that if we don't estimate our project precisely, then we can't get good human resources. The purpose of this study is to find the way that how to gain excellent human resources now and in the future. The Ministry of National Defense to study US military Acquisition system. Korean military strategy in the situation of the confrontation between South and North Korea and in the situation of the international relationship and the way of constructing the military strength for the future. To improve Acquisition Program of Human Strength, we must develope and assess the future strategic environment of the Korean Peninsula especially Acquisition Program of Human Strength.