• Journal of Chest Surgery
• /
• v.23 no.6
• /
• pp.1280-1287
• /
• 1990

A seven month old female infant with isolated ventricular inversion and anatomically corrected malposition of the great arteries in situs solitus, associated with ventricular septal defect, patent ductus arteriosus, right-sided juxtaposition of left atrial appendage, is reported. The patient showed usual atrial arrangement with somewhat superoinferior relation, a discordant atrioventricular connection, and a concordant ventriculoarterial connection with aorta in the right-sided position. A normal sized left atrium was connected to the left superiorly positioned morphologic right ventricle through a tricuspid valve, which crossed the left ventricular outflow tract anteriorly. Well developed bilateral[subaortic and sub-pulmonary]conus was documented at operative field. successful surgical repair was done by performing the Senning procedure and by closing the ventricular sepal defect with a patch through the right ventriculotomy. The infant’s postoperative course was uneventful with normal sinus rhythm. Postoperative cardiac catheterization revealed no hemodynamic obstruction or residual shunt.

• Journal of applied mathematics & informatics
• /
• v.20 no.1_2
• /
• pp.455-464
• /
• 2006

In this paper, we introduce the concept of an interval-valued fuzzy left (right, two-sided, interior, bi-) ideal generated by an interval-valued fuzzy subset in semigroups. Some characterizations of such generated interval-valued fuzzy ideals are also discussed.

• IE interfaces
• /
• v.10 no.2
• /
• pp.29-40
• /
• 1997

This paper considers two-sided (left and right side) assembly lines which are often used, especially in assembling large-sized products such as trucks and buses. A large number of exact algorithms and heuristics have been proposed to balance one-sided lines. However, little attention has been paid to balancing two-sided assembly lines. This paper presents an efficient assignment rule for balancing two-sided assembly lines. The rule involves maximizing relatedness and slackness between works. We first investigate the characteristics of two-sided line balancing and devise new measures for the balancing. We in this rule assign workstations a set of tasks rather than an unit task at a time. a priority rule of assigning the sets is proposed. Extensive computational experiments are carried out to make the performance comparison between the proposed rule and existing ones. The computational results show that our rule is promising in solution quality.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.22 no.1
• /
• pp.95-101
• /
• 2022

The two-sided assembly line balancing problem is a kind of NP-hard problem. This problem primarily can be solved metaheuristic method. This paper suggests parallel clustering algorithm that each left and right-sided workstation assigned by operations with T_i = c^* ± α < c, c^* = ${\lceil}$W/m^*${\rceil}$ such that M^* = ${\lceil}$W/c${\rceil}$ for precedence diagram of two-sided assembly line with total complete time W and cycle time c. This clustering performs forward direction from left to right or reverse direction from right to left. For the 4 experimental data with 17 cycle times, the proposed algorithm can be obtain the minimum number of workstations m^* and can be reduce the cycle time to T_max < c then metaheuristic methods. Also, proposed clustering algorithm maximizes the line efficiency and minimizes the variance between workers operation times.

• The Korean Nurse
• /
• v.4 no.5 s.19
• /
• pp.72-85
• /
• 1965

• Journal of Chest Surgery
• /
• v.23 no.1
• /
• pp.201-204
• /
• 1990

The double aortic arch is the commonest anomaly among the vascular rings are relatively rare congenital vascular anomalies. This anomaly is malformation of the aortic arch system may, by compression of the trachea and esophagus, cause respiratory distress and dysphagia. We experienced one case of double aortic arch with right sided descending aorta with predominant right anterior arch treated surgically at Kyung Hee University Medical Center. 1-year-old male patient with acute airway obstruction due to combination of double aortic arch and right descending aorta. The diagnosis was made by simple X-ray & confirmed by barium esophagogram & aortogram. The operative approach was through left thoracotomy & underwent division of the left aortic arch & division of ligamentum arteriosum & suspension of divided proximal end of anterior arch to anterior thoracic wall. The postoperative courses was uneventful and doing well on the 3 years.

• Journal of Korean Physical Therapy Science
• /
• v.1 no.1
• /
• pp.129-134
• /
• 1994

The purpose of this study is to conduct a retrospective chart audit of initial physical therapy evaluation to determine the incidence of sitting imbalance and its relationship to the side of weakness in hemiparetic patients. A review of the records of 36 patients revealed that the left side was predominantly affected in 17 patients and the right side in 19 patients. Ages, time since onset, and proportion of men and women did not difer between the left and right hemiparetic patients. About half patients(52.8%) could sit independently, but 64.7% of those with left-sided weak-ness and 31.6% of those with right-sided weakness could not. A chi-sequare analysis revealed a significant relationship between the side of weakness and independent sitting balance(p<0.1). Patients with left hemiplegia are more likely to have difficulty with independent sitting balance(p<0.1). Patient with left hemiplegia are more likely to have difficulty with independent sitting than patients with right hemiplegia, which may affect their progress in rehabilitation.

• Journal of Korean Neurosurgical Society
• /
• v.58 no.6
• /
• pp.563-565
• /
• 2015

Juxtafacet cysts are implicated in neural compression. Thus far, it is known that surgical removal is the definitive treatment for symptomatic juxtafacet cyst because spontaneous regression is rare, and the failure rate of conservative treatment is high. We have reported a rare case of right-sided juxtafacet cyst development after the spontaneous resolution of contralateral left-sided facet cyst. The left-sided facet cyst resolved spontaneously without surgical treatment, but a juxtacyst developed on the contralateral facet on the right side, as illustrated on 4-year follow-up magnetic resonance images. To the best of our knowledge, this is the first report of newly developed contralateral juxtafacet cyst after spontaneous regression. Herein, we have discussed the natural history and the management of this rare case.

• Journal of Chest Surgery
• /
• v.40 no.2 s.271
• /
• pp.155-158
• /
• 2007

A congenital diaphragmatic hernia, which mainly occurs in the left thorax, requires an emergency operative procedure during the neonatal periods. A right-sided congenital diaphragmatic hernia is rare, and often detected after the neonatal period due to the mild symptoms. Traditionally, the treatment repairs the diaphragmatic defect via a thoracotomy. However, good results of thoracoscopic repairs have been reported. Herein, the case of a 5-month-old girl, who received a thoracoscopic repair of a right-sided congenital diaphragmatic hernia, is reported.

• Journal of the Korea Safety Management & Science
• /
• v.14 no.4
• /
• pp.281-289
• /
• 2012

Recently, creative innovation has become a major topic in management innovation and due to this, various researches on its need and methodologies are being performed. According to previous studies on ambidexterity, explorative innovation is closer to divergent and right-sided brain, while exploitative innovation is closer to convergent and left-sided brain. Five attributes of the questionnaires were developed based on right-sided and left-sided brain theory. Also, 25 problem solving tools were selected according to previous studies. QC 7 Tools and new QC 7 Tools were frequently used in Six Sigma projects. Other 11 problem solving tools were selected with consideration on its usage frequency. Survey questionnaires were distributed to 25 Six Sigma consultants and 22 were retrieved for this study's use. As a result, 14 tools were identified to hold exploitative attribute while 11 tools were identified to hold explorative attributes.