• Journal of Welding and Joining
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• v.14 no.5
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• pp.49-58
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• 1996

In Korea Gas Corporation, as one of the pipeline repairing methods, damaged pipelines are sometimes treated with a temporally employment of split sleeve. On conducting the repair process, circumferential fillet and longitudinal groove welding usually must be included. For the case of groove welding, a considerable amount of R&D have been carried out related to property changes, while few study on the property change in fillet welding has been conducted. In this paper, so as to confirm the specification of fillet welding in terms of safety and reliability, properties changed by fillet welding were investigated for two welding processes. Qualifying tests such as reviewing macrostructure and nick-break tests were performed according to API 1104 and ASME section IX. In addition, tensile properties and hardness were evaluated according to KS B0841 and BS 4515. The fillet weld prepared by the qualified procedure showed melting depth of 0.8∼1.3mm and heat affected zone of 2.8∼3.4mm length. No crack and lack of penetration were observed. And the results of hardness and nick-break tests satisfied code requirements. The area crossed by fillet and groove welding line was found to have minimal tensile strength.

• Journal of Veterinary Clinics
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• v.10 no.2
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• pp.193-198
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• 1993

Ultrasonography observations were made of the kidneys of 21 dogs. Ultrasonography images obtained in transverse and longitudinal planes. A 3.5-MHz linear transducer was used. All examinations were peformed on dogs in dorsal recumbency under anesthesia. The right kidney was 3.2~3.8cm long, 1.7~3.5 cm wide and 1.0～1.9cm deep in 0～5 of body weight group, 3.6~4.6cm long, 2.4～3.6cm wide and 1.4～2.1cm deep in 5～10 of body weight group, and 4.6～6.4cm long, 3.3～4.2cm wide and 2.0~2.0cm deep in 10～15kg of body weight group(p< 0.01). Diameter of the parenchyma of the right kidney ranged between 0.4～0.9cm in 0～5kg group, 0.6～1.0cm in 5～l0kg group and 0.9-1.1cm in 10~15kg group(p<0.01). Diameter of the renal sinus of the right kidney ranged between 0.3～0.5cm in 0～5kg group, 0.4～0.7cm in 5～10kg group and 0.5～0.9cm in 10~ 15kg group(p< 0.01). Similar ultrasonic measurements were obtained for the left kidney. It was concluded that the ultrasonographic findings described in this study can be used as references for diagnosis of morphologic changes in e canine kidney.

• Korean Journal of Biological Psychiatry
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• v.8 no.1
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• pp.37-46
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• 2001

Whenever a clinician manages the patients with depression, he may meet various problems that make it difficult to treat them. Even though he has good skills and knowledge about depression, some barriers will be appear during his practice. In general, the difficulties in treating depression are treatment-resistance, adverse effects of antidepressants, pregnancy in female patients, comorbid medical conditions, poor compliance, drug-drug interactions, and so on, which are related with pharmacological treatments. Here, only the two of them, the treatment-resistant depression and difficult problems concerned with pregnancy, were discussed. Some level of treatment resistance is the norm rather than the exception. As the treatment failure stems from inadequate treatment, it is important that the clinician should prescribe medications with sufficient doseage and adequate duration. And to overcome the treatment resistant depression the polypharmacy is necessary, in that case, the side effects and toxicities should be explored and managed immediately. So the clinician have to learn more about the pharmacokinetic and pharmacodynamic mechanisms of each drugs used in treatment of depression. When the risk of the fetus by the exposure is higher than the risk of untreated maternal psychiatric disorder, psychotropic medications should be used during pregnancy. Women who are maintained on psychotropics and become pregnant, as well as women with the new onset of psychiatric symptoms during pregnancy, should be carefully reassessed. However, data concerning the potential risk of long-term behavioral changes following prenatal exposure to psychotropics is rare, so further longitudinal follow-up studies are needed.

• Journal of the Korean Society of Physical Medicine
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• v.11 no.3
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• pp.59-63
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• 2016

PURPOSE: The purpose of the present study is to examine the effects of sole Pilates based breathing on the thicknesses of the abdominal muscles. METHODS: Twenty adults aged in their 20-30s were randomly selected. The selection criteria were those who had no medical history of pain due to musculoskeletal system, neurologic, or orthopedic diseases within six months before the selection. The thicknesses of the abdominal muscles (the transversus abdominis muscle, internal oblique abdominal muscle, and external oblique abdominal muscle) of the subjects were measured using ultrasonography before and after Pilates breathing. The study was approved by the research ethics committee of the Catholic University of Pusan. RESULTS: After Pilates based breathing, the thicknesses of the transversus abdominis muscle, the internal oblique abdominal muscle, and the external oblique abdominal muscle increased significantly. In particular, the thickness increase rate of the transversus abdominis muscle was shown to be the highest. CONCLUSION: Sole Pilates based breathing is expected to be effective for the improvement of trunk stability through strengthening of abdominal muscles, because it induces the coordinated contraction of the transversus abdominis muscle and other abdominal muscle. It will be need the Longitudinal study for identify to long term effects of Pilates based breathing.

• The Journal of Korean Obstetrics and Gynecology
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• v.21 no.1
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• pp.168-178
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• 2008

Purpose: To verify the relationship of SA2000E results and acupuncture treatment efficacy on postmenopausal women. Methods: Longitudinal analyze relationship of the SA2000E results and hot flush VAS score changes of a clinical trial participants in 2006. Results: Someone who has high Vaso-aging degree by SA2000E represented better hot flash VAS decreasing efficacy. And the diminution rate of hot flash VAS, after 1week from the 1st treatment day was 0.311(p=0.0001), and finally 0.672(p = 0.0396). There are no statistical differences between study group and control group. Conclusion: Clinical trial participant who has better Vaso-physiological function present more hot flash reduce efficacy by acupuncture therapy. Vaso-aging degree by SA2000E could be use as a predictor of acupuncture hot flash treatment result.

• Journal of Nutrition and Health
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• v.28 no.8
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• pp.782-790
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• 1995

The longitudinal changes in protein secretion from 27 lactating women(primiparae = 10, multiparae=17) and protein intake of infants have been studied from 0.5 to 6 months postpartum in Chungju and Anseong area. The protein contents o breast milk in primiparae appeared significantly higher than in multipaae at 0.5 and 1 month postpartum. The protein secretion of primiparae and multiparae was not significantly different. In breast-feeding period, there was a tendency that protein secretion from 0.5 to 2 months postpartum was higher than thereafter. Average protein intake of boys from milk from 0.5 to 6 months postpartum was significantly higher than that of girls(p<0.05), because volume of milk intake of boys was much more than that of girls. In the amount of protein intake per infant weight, there was no significant difference between boys and girls. Protein intakes per infant weight decreased during lactation. Mean energy consumption of lactating women was 2,327㎉/day, which was 93.1% of recommended energy allowance for Koreans. Mean dietary protein consumption of lactating women was 81g/day, which was 101.3% of recemmended protein allowance for Koreans. Energy ratio of carbohydrate : protein : lipid was appeared to 68.8 : 13.9 : 17.3.

• Journal of Korean Neurosurgical Society
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• v.49 no.4
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• pp.237-240
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• 2011

Ganglion cysts usually arise from the tendon sheaths and tissues around the joints. It is usually associated with degenerative arthritic changes in older people. Ganglion cyst in the spine is rare and there is no previous report on case that located in the intervertebral foramen and compressed dorsal root ganglion associated severe radiculopathy. A 29-year-old woman presented with severe left thigh pain and dysesthesia for a month. Magnetic resonance imaging revealed a dumbbell like mass in the intervertebral foramen between second and third lumbar vertebrae on the left side. The lesion was removed after exposure of the L2-L3 intervertebral foramen. The histological examination showed fragmented cystic wall-like structure composed of fibromyxoid tissue but there was no lining epithelium. A ganglion cyst may compromise lumbar dorsal root ganglion when it located in the intervertebral foramen. Although it is very rare location, ganglion cyst should be included in the differential diagnosis for intervertebral foraminal mass lesions.

• Journal of Labour Economics
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• v.31 no.2
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• pp.35-72
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• 2008

This paper examines whether me effects of product demand shocks on employment are different between unionized and non-unionized firms, using new firm-level longitudinal data in Korea over the period 1997~2004. The estimation result shows that the effects of both negative and positive demand shocks on employment are smaller in unionized firms than in non-unionized firms. The result implies that unions appear to provide their members with job stability in response to negative demand shocks, while playing a very limited role in employment determination in response to positive demand shocks leading to employment expansion.

• 한국정보통신설비학회:학술대회논문집
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• 2007.08a
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• pp.227-230
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• 2007

In this paper, we have analyzed the change characteristics of induced noise due to the impedance change of the ground in both ends of telecommunication line. As what affects the induced noise, there are power influence or longitudinal transverse voltages and its weighted filtered voltage. In the result of measurement, we can see the noise level change due to the change of the ground impedance, that is, as the ground impedance at either end of the telecommunication line become grower, the noise level is increased, and as the ground impedance at either end of the telecommunication line become smaller, the noise level is decreased. However, we can't define the relation between ground impedance size and PIF in these measurement results, so we will have to carry out the measurement more deeply and more practically with various conditions in environmental viewpoint and/or experimental viewpoint to establish the definition between ground impedance size and PIF.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.22 no.2
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• pp.7-15
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• 1986

In order to investigate the performance for the mackerel purse seine of one boat purse seiner using in the sea area of Cheju Island, a model net is made of the scale of 1/400 of its full scale, and model test on the shape of net and the tension of purse line is carried out in the stagnant water channel of the circulating water tank. Designing and testing for the model net are based on the Tauti's law. The obtained results are as follows; 1. The sinking rate of net is maximized the value of 6.40 m/min from 5 to 10 minutes after shooting net, and the mean value is 6.13 m/min. 2. The enclosed area formed with the float line after pursing operation is 76-84% of the area which is formed immediately after the shooting operation. At that time, purse seine is pulled inward the circle of surrounding net about 26.5% of the diameter. 3. In operating, when longitudinal section area of the central part of the net is maximized, the split area of both the wing-ends is 31-32% of the former. 4. When the time for the completing of pursing is 20 minutes, the maximum tension of the purse line is about 10.2 tons.