• 한국산업보건학회지
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• 제10권2호
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• pp.40-52
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• 2000

The aim of this study was to evaluate the prevailing ergonomic conditions regarding low back injury in an assembly factory, In this study, analytic biomechanical model and NIOSH guidelines were applied to evaluate risk levels of low back injury for automobile assembly jobs. Total of 246 workers were analysed. There were 10 jobs with greater back compressive forces than 350kg at L5/S1. Also there were 44 jobs over Action Limit in terms of 1981 NIOSH guidelines. This could in part be explained by the ergonomic conditions of the companys analysed as not hazardous, with a relatively low duration of 'combined' extreme work posture. However, more ergonomic intervention could be done based on those results.

• 대한한방내과학회지
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• 제22권2호
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• pp.263-269
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• 2001

Monoplegia is the paralysis of either the upper or lower limb. Monoplegia is commonly caused by an injury to the cerebral cortex; it is rarely caused by an injury to the internal capsule, brain stem, or spinal cord. Most cerebral cortex is derived from the occlusion of a brain cortex blood vessel due to thrombus or embolus. According to motor homunculus, lower limb monoplegia occurs from limited damage to the most upper part of the primary motor area(Brodmann's area 4, located in precentral gyrus). Clinically, lower limb monoplegia due to brain cortical infarction is commonly misunderstood as monoplegia due to spinal injury because the lesion is situated at the most upper part of precentral gyrus. We had many difficulties in finding lesion on brain CT, but we diagnosed two patients correctly by using an MRI, who have lower limb monoplegia due to brain cortical infarction oriental treatment.

• Safety and Health at Work
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• 제7권2호
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• pp.138-142
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• 2016

Background: Household waste collectors (HWCs) are exposed to hazardous conditions. This study investigates the patterns of workplace injuries and work-related illnesses of HWCs. Methods: This study uses cases of workplace injuries and work-related illnesses of HWCs that occurred between 2010 and 2011. We analyzed 325 cases of injuries and 36 cases of illnesses according to the workers' age, length of employment, size of workplace, injured part of body, day and month of injury, type of accident, agency of accident, and collection process. Results: There were significant differences in the effect of workers' length of employment, injured part of body, type of accident, agency of accident, and collection process. Results show that most injuries occur in workers in their 50s and older. This study also shows that 51.4% of injuries occur at businesses with 49 employees or fewer. Injuries to waste collectors happen most often when workers are electrocuted after slipping on the ground. The second most prevalent form of injury is falling, which usually happens when workers hang from the rear of the truck during transportation or otherwise slip and fall from the truck. Work-related illnesses amongst waste collectors are mostly musculoskeletal conditions due to damaging postures. Conclusion: These findings will be instructive in devising policies and guidelines for preventing workplace injuries and work-related illnesses of HWCs.

• 생물환경조절학회지
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• 제10권1호
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• pp.36-41
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• 2001

저온기 플라스틱 하우스내의 기상에 따른 수박의 저온장애 방지를 목적으로 하우스내의 위치별 온도분포와 냉해 발생률을 측정하였으며, 저온장해시 수박의 가시적인 증상을 조사하였다. 남북동 2중 하우스(남쪽 창)에서 온도분포 (12월 중순)는 중앙을 기준으로 동편(93.8%)이 서편(85.3%)보다 높고, 북쪽이 남쪽보다 1일 평균온도가 약 1~2$^{\circ}C$ 높게 나타났다. 또한 부엽토(황토+퇴비: 2.5ton/200$m^2$)가 사토나 황토 또는 점토에 비하여 남.북의 양방향에서 높게 발생되었다. 잎에서 냉해의 형태적 증상으로는 잎이 수침상으로 되었다가 잎이 점점 위로 말기며, 황화되는 경향을 보였으며, 냉해가 심할수록 줄기의 도관이 점점 막히는 경향을 보였다. 뿌리의 신장은 줄기나 잎의 생육보다 저온에 대하여 더욱 민감하게 작용하였다. 3$0^{\circ}C$에서 주근과 측근의 생장이 왕성하였으나 22$^{\circ}C$에서는 측근의 발생이 억제되는 경향을 보였으며, 14$^{\circ}C$와 6$^{\circ}C$에서는 뿌리의 신장이 거의 정지되는 현상을 보였다. 이상의 결과에서 저온기에서는 온도가 높은 중앙부위에 수박을 정식하여 양쪽 가장자리로 줄기를 유인하여 재배양식이 온도관리 측면에서 휠씬 효율적인 것으로 나타났으며, 하우스내의 온도는 최저 22$^{\circ}C$이상으로 하는 것이 뿌리 생장에 유리할 것으로 사료된다.

• 한국작물학회지
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• 제34권s02호
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• pp.96-114
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• 1989

There are several meterorolgical stresses in the winter cereal crops. Among these stresses, cold injury is one of the most important stresses for wheat and barley production in Korea. The reduction in grain yield of the wheat and barley due to cold injury has occurred almost every year in Korea. The objective of the study was to get the basic information in relation to the cold injury and to detect the method minimizing the damage of cold injury. When the air temperature was the ranges of -13$^{\circ}C$ to -15$^{\circ}C$, the soil temperature at the crown part of the plant was very stable, whereas in the ranges of -2$^{\circ}C$ to -3$^{\circ}C$ the soil surface temperature was more unstable and cold than air and subterranean temperatures. The different parts of the plant in wheat and barley possess the different levels of cold hardiness. In comparison to the cold hardiness of plant parts, the leaf and crown are the less sensitive to cold injury than root and vascular transitional zone. The type and extent of stress is determined by the redistribution pattern of water during freezing. These types from freezing processes were three types: a) Equilibrium freezing pattern b) Non -equilibrium freezing pattern, c) Non-equilibrium freezing pattern typical of tender tissues. Cold hardiness in wheat plants were more harder than barley plants at vegitative stage, but inverted at the reproductive stage. Injuries by low temperature during the seasons of barley cultivation in Korea were occured mainly in four stage; in the first and third stage, frost injury occurs, the second stage, freezing injury, and the fourth stage, chilling injury.

• 한국자동차공학회논문집
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• 제7권5호
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• pp.130-140
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• 1999

During crash of a vehicle, most of the kinetic energy of the driver is absorbed by the steering system. The deformation characteristics of the steering system has significant effects on the injury of the driver. A part of the energy is absorbed by the steering wheel and another part by the collapsable steering column. It is believed that strength distribution between the wheel and the column has an important effect on the injury of the driver. A design criterion is suggested for steering wheels for maximum protection of drivers. Tagushi method is used to analyse the effects of design parameters.

• Journal of Trauma and Injury
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• 제23권1호
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• pp.49-52
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• 2010

A hemothorax usually occur, due to injuries to the intercostal and great vessels, pulmonary damage, and sometimes fractured ribs. We report a case in which the hemothorax that occurred, neither intrathoracic injury nor injury to internal thoracic vessels and organs, via lacerated diaphragmatic and liver laceration due to a right upper part of anterior chest stab injury caused by a sharp object. The patient's general conditions gradually worsened, so chest and abdominal computed tomogram were taken. The abdominal computed tomogram revealed diaphragmatic injuries and bleeding from the lacerated liver. We performed an exploratory laparotomy to control the bleeding from the lacerated liver with simple primary sutures. In addition exploration was performed in the right pleural space through the lacerated diaphragm with a thoracoscopic instrument. There were no bleeding foci in the right pleural space, the vessels, or the lung on the thoracoscopic video. Closure of the lacerated diaphragm was achieved with simple, primary sutures. The postoperative course of the patient was uneventful, and the patient was discharged.

• Journal of Trauma and Injury
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• 제35권4호
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• pp.282-286
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• 2022

Complete cricotracheal separation, which is the most severe type of laryngeal trauma, is an uncommonly seen injury that clinicians have limited experience in managing. However, it is potentially fatal. Due to limited exposure to this condition, mismanagement can occur, which may further aggravate the patient's condition. The most crucial part of managing this injury is to establish a secure airway. Tracheostomy under local anesthesia is the preferred method of airway stabilization, in order to avoid further injuries to the airway caused by endotracheal intubation. Here, we discuss the management of complete cricotracheal separation based on a case experienced in the east coast region of Malaysia, where this type of injury is rarely encountered.

• Journal of Trauma and Injury
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• 제26권3호
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• pp.175-182
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• 2013

Purpose: Crushing injuries by car tires result from a combination of friction, shearing, and compression forces and the severity of injury is influenced by the acceleration. Because car-tire injuries of the lower leg in children are common these days but they have received little attention; thus, our purpose was to look closely into this problem. Methods: A retrospective analysis was conducted of data from children under 15 years old age who visited an emergency department because of a car-tire-related crushing injury to the lower leg in pedestrian traffic accident from January 2008 to September 2012. The patient's age, sex, site of injury, degree of injury, associated injuries, type of surgery, and complications were reviewed. Results: There were 39 children, the mean age was 8.0 years, and 71.8% were boys. The dorsal part of the leg was involved most frequently. According to the severity classification, 15 children were grade I, 6 were grade II, and 18 were grade III. Among 24 patients, 13 were treated with skin graft and 3 were treated using a sural flap. Twelve patients developed complications, such as hypertrophic scarring, contractures, and deformities with significant bone loss. Conclusion: Various degrees of skin or soft tissue defects were caused in children by car tires. In this study, patients were often also had tendon or bone damage. Proper and timely initial treatments are needed to reduce the incidence of infection, the number of operative procedures, and the hospital stay.

• The Journal of Korean Physical Therapy
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• 제25권3호
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• pp.132-135
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• 2013

We presented with a patient who showed injury of the cingulum and fornix by penetration of a foreign body into the brain on diffusion tensor tractography (DTT). A 63-year-old man suffered a brain injury by a part of a power saw blade that was suddenly detached from a power saw during work. A part of the power saw blade penetrated his right frontal skull and advanced to the right posterior horn of the lateral ventricle. This penetration caused traumatic intracerebral hemorrhage in the right frontal lobe and intraventricular hemorrhage in the lateral ventricle. He underwent craniotomy and removal of intracranial foreign bodies (bony pieces and saw blade). The patient's Memory Assessment Scale scores were 74 (4%ile) for global memory, 78 (7%ile) for verbal memory, and 80 (9%ile) for visual memory. DTTs showed disruptions in the anterior portion of the fornical body, right fornical crus, the anterior portion of the right cingulum, and the middle portion of the left cingulum, compared to the control. It seems that the sustained memory impairment of this patient might be related to injury of the cingulum and fornix.