• Journal of the Korean Home Economics Association
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• v.11 no.3
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• pp.314-328
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• 1973

Highly developed and Complicated modern society demands earlier development of a human intelligence. Thus the trend of ecucations nowadays has been rapid increase of efford in the field of child education. As a result experiments to find out the ways of developing child intelligence have been repeatedly carried out and various theories concerning them have been expressed. The aim of this study is to review such theories and researches. Generally, the ways how to develop child intelligence are divided into tow parts. One is by means of operating mental abilities of a child and the other is providing abundant environment to a child for the facilitation of such mental operation. A. Mental Operation The intelligence of a child is more likely to be developed by thorough and precise training of following four mental abilities. 1. Ability of classification 2. Ability of analogy 3. Ability of variation 4. Ability of inference B. Environment Child intelligence is also more likely to be developed by providing him next four environments. 1. When the parents maintaina moderate expectation and have know-ledge of the child's mental development. 2. When the parents follow the standard linguistic form and provide the child with ample opportunities for the verval expression. 3. When the parents provide tools and materials and opportunities for the cultural experiences. 4. When the parents furnish immediate rewards to the child's intellectual achievements and help him form a positive self-concept with regard to the intellectual abilities.

• Journal of Chest Surgery
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• v.3 no.1
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• pp.3-12
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• 1970

During the last 10 years of period, one hundred patients with various pulmonary diseases were pneumonectomized upon at the Department of Chest Surgery of Pusan University Hospital. This paper is concerned with the clnical results of these patients along with the serious postoperative complications such as postoperative intrapleural infection and hemorrhage. The results were obtained as follows. 1.Left pneumonectomy was done in sixty-six of 100 patients [66 %] and the right one was done in the rest thirty-four[34 %]. The ratio between left and right was nearly 2:1. 2.Of all oostoperative complications, the intrapleural infection was most common, and these were 53 % in empyema thoracis and 12.7 % in pulmonary tuberculosis respectively. 3.More postoperative complications could be seen after right pneumonectomy than the left one. 4.It was thought that the postoperative intrapleural infection was closely correlated with the methods of pleural dissection at pneumonectomy,postoperatlve tube drainage, time of operation, massive hemorrhage during operation, prolongation of bleeding time, and dysfunction of the liver. 5.The repeated thoracenteses with infusion of neomycin into the infected thoracic cavity and intravenous administrations of the high units of penicillin were effective in treatment of the postoperative intrapleural infection, however, the refractory cases have to be cured by thoracoplasty with open window. 6.Immediate secondary open thoracotomy appears to be the method of choice in life saving who developed massive intrathoracic hemorrhage after pneumonectomy. 7.The mortality rate was 10 % in our cases and the main causes of death were postoperative respiratory insufficiency, pulmonary edema, hemorrhage and sudden cardiac arrest.

• Journal of Chest Surgery
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• v.9 no.2
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• pp.328-335
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• 1976

This case report included 4 cases of traumatic diaphragmatic hernias, 3 cases of non-traumatic diaphragmatic hernias, and 3 cases of eventration of the diaphragm. Among the traumatic hernias, one case was in immediate phase of traumatic diaphragmatic rupture by traffic accident, 2 cases were in intermediate phase with chronic respiratory or vague gastrointestinal symptoms after traffic accident, and the other was developed after an operation, decortication for a chronic empyema with severe pleural calcifications, damaging the diaphragm. Three cases of nontraumatic diaphragmatic hernia were presented, including 2 cases of probable Bochadlek's hernia (Parents refused operation) and a case of Morgagni's hernia with severe gastrointestinal symptoms. And three cases of eventration of the diaphragm with symptoms were also reported. Results of all treated cases were excellent.

• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2005.11a
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• pp.301-304
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• 2005

Most of the small and medium industries rather focus on immediate problems and how to properly maintain organizational matters and existing system than the strategic and operational use of Information Technology when they deal with applications and operation of Information System. This study found out that there were few studies on IT outsourcing for small and medium companies in Korea compared to large enterprises' IT outsourcing. Most preceding studies researched the problems of partnership and technical, managerial, and economical success factors for big companies. Small and medium companies have the problems of financial difficulty, organizational scale (40.3%), shortage of manpower for system operation (24.1%), and lack of practical use of managers (8.9%). SMB firms have required support of government for their Informationalization but, we found out amount of companies (41%) not be informed or don't account on government's supporting IT of SMB programs. In addition, Range and Contents of outsourcing, Reputation of Outsourcing vendor, Reliability of maintaining were selected as CSFs of SMB IT outsourcing. While large corporation staff more considered CEO's willing and inner facts of their companies.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.28 no.2
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• pp.327-338
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• 2018

On-line/off-line signature is a technique for performing heavy computations required for signature generation in the off-line stage and completing the final signature by a simple operation in the online stage. This is suitable for application environments that require immediate signing responses to multiple users. In this paper, we propose two new on-line/off-line signature schemes based on RSA problem. The first technique can generate a signature with a fixed base exponentiation when signing online, and the second technique can complete an online signature with a very simple calculation such as a hash operation. The security of both signatures is based on the RSA problem, which is proven to be tightly secure without security loss in the random oracle model.

• Journal of Fisheries and Marine Sciences Education
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• v.22 no.3
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• pp.316-329
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• 2010

The purpose of this study was to examine how middle school students perceived the operation of on-line and off-line math-gifted education. The research questions were as follows: 1. How do students recognize the current situation concerning the operation of on-line and off-line gifted education? 2. How do students recognize the effect and satisfaction level of on-line and off-line gifted education? 3. How do students recognize the improvement of on-line and off-line gifted education? The subjects in this study were 591 students who included 208 in on-line classes and 383 in off-line classes. The results were as follows: First, the students who were enrolled in the on-line and off-line classes regarded gifted people as ones who had a superb ability in a particular field and as ones who think creatively. Second, all the students in on-line and off-line classes found gifted education to be of use to developing their potentials, and they had the biggest preference for experiential field study as the most effective teaching method. Third, concerning their needs for the management of gifted classes, they asked for immediate Q&A services over the Internet.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.41 no.2
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• pp.74-83
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• 2018

It is very crucial activities that Korean army have to detect and recognize enemy's locations and types of weapon of their artillery firstly for effective operation of friendly force's artillery weapons during wartime. For these activities, one of the most critical artillery weapon systems is the anti-artillery radar (hereafter; radars) for immediate counter-fire operations against the target. So, in early wartime these radar's roles are very important for minimizing friendly force's damage because arbiters have to recognize a several enemy's artillery positions quickly and then to take an action right away. Up to date, Republic of Korea Army for tactical artillery operations only depends on individual commander's intuition and capability. Therefore, we propose these radars allocation model based on integer programming that combines ArcGIS (Geographic Information System) analysis data and each radar's performances which include allowable specific ranges of altitude, azimuth (FOV; field of view) and distances for target detection, and weapons types i.e., rocket, mortars and cannon ammo etc. And we demonstrate the effectiveness of their allocation's solution of available various types of radar asset through several experimental scenarios. The proposed model can be ensured the optimal detection coverage, the enhancement of artillery radar's operations and assisting a quick decision for commander finally.

• Journal of Korean Foot and Ankle Society
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• v.19 no.1
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• pp.23-26
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• 2015

Arteriovenous malformations (AVMs) are characterized by the presence of abnormal connections between feeding arteries and draining veins. It is generally assumed that symptomatic lesions can preferably be treated. Due to high arterial blood flow, there is a risk of bleeding with surgical excision alone, which can be massive and life threatening during the operation. According to recent advances in interventional technique, a hybrid approach using embolization of the feeding artery with subsequent immediate excision of the AVM for successful management of vascular lesions could be applied to AVMs. Herein, we describe a case of successful excision of AVM in the left soleus muscle using a hybrid approach.

• Advances in pediatric surgery
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• v.10 no.1
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• pp.17-21
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• 2004

Improvement in prenatal ultrasonography is leading to diagnose choledochal cyst before birth and before onset of classical symptom more frequently. But, there is a controversy about optimal timing for Cyst excision of prenatally diagnosed asymptomatic choledochal cyst. To identify the most appropriate timing for surgery in prenatally diagnosed choledochal Cysts, we analyzed 6 patients who had operation for choledochal cysts within 30days after birth at the division of Pediatric Surgery, Samsung Medical Center and Inha University School of Medicine, from June 1995 to June 2002. Males were four and females 2, the mean age at operation was 11.2 days, and the median age 8.0 days. The range of gestational ages of the antenatal diagnosis of bile duct dilatation was 24 weeks to 32 weeks, mean was 38.3 weeks, and mean birth weight was 3,298.3 g. After birth, abdominal ultrasonography, hepatobiliary scintigraphy, and magnetic resonance cholangiopancratography (MRCP) were performed. Mean age at operation was 11.2 days. All patients had the cyst excision and Rouxen-Y hepaticojejunostomy. Immediate postoperative complication was not found. During the median follow-up period of 41 months, one patient was admitted due to cholangitis, and the other due to variceal bleeding. Early operative treatment of asymptomatic newborn is safe and effective to prevent developing complications later in life.

• Journal of Satellite, Information and Communications
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• v.11 no.3
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• pp.51-57
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• 2016

Many kinds of telemetry should be monitored to check the state of spacecraft and it leads the time consumption. However, it is very important to define the status of satellite in short time because the contact number and time of low earth orbit satellite is limited. Also, on-board fault management should be prepared for non-contact operation because of the sever space environment. In this paper, on-board and ground autonomous operation method for the safety enhancement is described. Immediate fault detection and response is possible in ground by explicit anomaly detection through satellite event and error information. Also, satellite operation assistant system is proposed for ground autonomy that collect event sequence in accordance with related telemetry and recommend or execute an appropriate action for abnormal state. Critical parameter monitoring method with checking rate, mode and threshold is developed for on-board autonomous fault management. If the value exceeds the limit, pre-defined command sequence is executed.