• Journal of the Korean Society of Industry Convergence
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• v.14 no.2
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• pp.59-65
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• 2011

$CO_2$ Welding which uses $CO_2$ instead of inert gas is most widely used in industrial sites. Welding rod for $CO_2$ Welding is roughly divided into solid wire and flux cored wire. $CO_2$ Welding has higher efficiency than any other welding methods, and also economic and speedy to handle, that's why is used frequently for welding general structures. As most of studies about $CO_2$ Welding are focused on metallurgical changes of successful joints, they developed theories about the change of configuration on weld parts. This study is especially focused on not only the change of configuration on weld parts, but also the change of the penetrating depth through changing the position of welding torch. For inspection, applied AWS A5.20 E70-1 among welding wires and fixed moving angles of torch, but controled the values of voltage and the position of welding. Also Automatic Feed Mechanism is used for exact movement of material, specimen is a piece of steel for general structures. By measuring and analyzing the configuration of sliced section and the values of welding leg length and welding throat after welding, the outcome about the changes turned out.

• The Journal of Korean Medicine
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• v.21 no.4
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• pp.16-25
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• 2000

Objective : Acupuncture and Radix Astragali aqua-acupuncture stimuli have long been used to cure human diseases. However, the exact physiological and biochemical mechanisms involved remain undiscovered. Thus, many attempts have been made to show the scientific mechanisms involved. The effects of acupuncture and Radix Astragali aqua-acupuncture, which was known to date, as follow; effective circulation of body blood system and proliferation of leucocytes. Methods : In this study, we have applied acupuncture and Radix Astragali aqua-acupuncture stimuli to mouse on Sinsuhyul, a stimulative point of oriental medicine, to see effects on the expression of cytokine $IL-1{\beta}$. Mice were treated with lipopolysaccharide(LPS) for inflammation induction and then reverse transcriptase-polymerase chain reaction (RT-PCR) using each primer set were performed to trace the amounts of mRNA. Results : 1. $IL-1{\beta}$ was not expressed in LPS-nontreated mice at 15 to 60 min after acupuncture-stimuli. However, expression occurred after 3hrs. 2. $IL-1{\beta}$ was specifically expressed in LPS-treated mice at 30 min after acupuncture-stimuli. 3. $IL-1{\beta}$ was expressed in LPS-nontreated mice at 30 min after Radix Astragali aqua-acupuncture stimuli, however, not expressed at 60, 180 min. 4. $IL-1{\beta}$ was gradually expressed in LPS-treated mice at 15 to 180 min after Radix Astragali aqua-acupuncture stimuli. Conclusions : $IL-1{\beta}$ in LPS-treated mice was more effective than that of LPS-nontreated mice. We are now in the process of elucidating the immunological action mechanism of acupuncture and Radix Astragali aqua-acupuncture stimuli. And cytokine $IL-1{\beta}$ can be used not only as a basis of the effects of acupuncture and Radix Astragali aqua-acupuncture but also as a diagnosis guide through the immunological actions of those.

• Asian Oncology Nursing
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• v.12 no.4
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• pp.305-313
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• 2012

Purpose: This study was done to clarify the effects of foot reflexology on peripheral neuropathy, symptom distress, anxiety and depression in cancer patients treated with oxaliplatin. Methods: A quasi-experimental design was employed. Changes in the variables were evaluated to test the effects of foot reflexology. Participants were cancer patients treated with oxaliplatin (experimental group 14 and control group 17). Peripheral neuropathy, symptom distress, anxiety and depression were measured before and after reflexology. Data were collected from October, 2010 to April, 2011. ${\chi}^2$-test, Fisher's exact test, t-test, Wilcoxon signed rank test and the Mann-Whitney U test were used to analyze the data. Results: The experimental group who received foot reflexology experienced less peripheral neuropathy and symptom distress than the control group. There was no difference in anxiety and depression between the experimental and control group. Conclusion: The foot reflexology program adopted in this study was found to be an effective method to reduce peripheral neuropathy and symptom distress. We recommend foot reflexology for patients with chemotherapy induced peripheral neuropathy.

• Asian Oncology Nursing
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• v.9 no.2
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• pp.155-162
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• 2009

Purpose: The purpose of this study was to investigate the of laughter therapy on depression, anxiety, and stress among patients underwent radiotherapy. Methods: Participants in the study were comprised of 60 breast cancer outpatients who received radiotherapy. Thirty-one of the patients were assigned in the experimental group and the other 29 patients made up the control group. Laughter therapy was consisted of the delivery of information and active motion resulting in laughter. We provided laughter therapy 4 times for 2 weeks. Each session lasted 60 min. The experimental group received laughter therapy intervention as a group. An average attendance frequency per person was 2.7. To evaluate the effect of laughter therapy, the degrees of depression and anxiety were measured by Hospital Anxiety and Depression (HAD) and stress was measured by the Brief Encounter Psychosocial Instrument (BEPSI). Data analysis included a 2-test, t-test, and Fisher's exact test using SPSS 12.0 and SAS 8.0. Results: There was significant decrease in the degrees of depression, anxiety, and stress in the experimental group compared to those in the control group (p<.01, p=.04, and p<.01, respectively). Conclusion: This study provides evidence that laughter therapy is an effective intervention in improving depression, anxiety, and stress in breast cancer patients.

• Journal of Korean Traditional Oncology
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• v.23 no.1
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• pp.33-43
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• 2018

Objectives: To observe the mitigating effects of a Traditional Korean Medicine(TKM) treatment program especially including pharmacopuncture, with Cyclophosphamide and doxorubicin chemotherapy on a both sides breast cancer patient. Methods: AA 74 year-old female patient diagnosed with both sides breast cancer (Right) pT1bpN0M0, (Left) pT1cpN1Mx was admitted to hospital of Dong-eui university in May of 2017. She received Cyclophosphamide and Doxorubicin from May $31^{st}$ to August $2^{nd}$, 2017 followed by TKM treatment consisting of herbal medicine, acupuncture, moxibustion and pharmacopuncture (Trionycis Carapax, Non-toxic Bee Venom, and Cultivated Wild Ginseng Extract) for a period of almost 4 months, from May $13^{th}$ to August $19^{th}$, 2017. Symptoms were evaluated by the grade of chief complaints refer to Common Terminology Criteria for Adverse Events (CTCAE) and Eastern Cooperative Oncology Group (ECOG). Results: TKM including pharmacopuncture alleviated chemotherapy-induced nausea, fatigue, joint pain, diarrhea, insomnia. Conclusions: This case study potentiates TKM with pharmacopuncture's significant efficacy in aiding breast cancer patients suffering from Cyclophosphamide plus Doxorubicin induced adverse effects. Further research should take place for clear understanding of the exact amount of dosage and safety. Moreover it must be accompanied by long-term follow up researches.

• Clinical and Experimental Pediatrics
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• v.61 no.4
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• pp.108-113
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• 2018

Purpose: This study aimed to investigate the clinical and socioenvironmental characteristics of sudden cardiorespiratory arrest after venipuncture in children. Methods: We conducted a retrospective email-based survey of all members of the Korean Pediatric Society. The questionnaire included items on patient demographics, socioenvironmental circumstances of the venipuncture, type of cardiorespiratory arrest, symptoms and signs, treatment, prognosis, and presumed cause of the arrest. Results: Fourteen patients were identified. Of these, 13 were young children (<2 years old), and 1 was 14 years old. All patients had been previously healthy and had no specific risk factors for sudden cardiorespiratory arrest. Most cases (n=11, 79%) were defined as cardiac or cardiorespiratory arrest, while the remaining cases (n=3, 21%) were defined as respiratory arrest. Aspiration (n=3), acute myocarditis (n=2), and laryngeal chemoreflex (n=1) were presumed as the causes; however, the exact causes were unclear. The overall prognosis was poor (death, n=7; morbidity, n=5; full recovery, n=2). The medical institutions faced severe backlash because of these incidents (out-of-court settlement, n=5; medical lawsuit, n=5; continuous harassment, n=3). Conclusion: Cardiorespiratory arrest after venipuncture is unpredictable and the probable cause of most cases is a vasovagal reaction. Medical personnel must be aware of the risk of unexpected cardiorespiratory arrest during routine intravenous procedures.

• Journal of Korean Tunnelling and Underground Space Association
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• v.15 no.6
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• pp.637-652
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• 2013

After studying the characteristics of three different evaluation methods of rock load; namely theoretical method, empirical method and numerical method, there were too many limitations for them to be applied on tunnels. Therefore, in this research paper, the method based on numerical analysis is selected to use as this method is the most reasonable one since it considers all parameters that are necessary for rock load estimations, and it also considers the interaction between ground and tunnel support. The critical shear strain concept formulated by Sakurai (1981) was used in order to measure exact rock load values based on numerical analysis. Evaluation on a Level 1 rock load height, which is depicted by the stable region in the graph shows that rock load is not affecting between ground grade 1~3, and it was evaluated that the fourth and fifth grades show less values of rock load height which led to the conclusion of a more economical design of concrete lining.

• Journal of Korean Neurosurgical Society
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• v.42 no.5
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• pp.388-391
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• 2007

Objective : The focus of aneurysm surgery is eliminating unnecessary operative manipulations and preparing the surgeon for any crises that might arise. With this concept in mind, we have tried resection of the gyrus rectus without routine sylvian fissure dissection in selected patients with anterior communicating artery (ACom) aneurysms, and compared these results with those from the conventional transsylvian approach. Methods : This retrospective study included 231 surgically treated patients with ACom aneurysms from March, 1997 to May, 2005. The patients were divided into two groups : Group A (96 with sylvian fissure dissection, March, 1997-December, 2000) and Group B (135 without sylvian fissure dissection, January, 2001-May, 2005). Overall surgical outcomes were compared, and operative times have been prospectively recorded since January, 04 to evaluate how this maneuver affected the length of surgical procedures. Results : All aneurysms were satisfactorily clipped, and there was no evidence of increased number of procedure-related retraction injuries in group B. Overall outcome was good in 186 (80.5%); 76 (79.2%) in group A, and 110 (815%) in group B ($x^2$ test, p=0.79). In good clinical grade of group A, good outcome was observed in 60 patients (89.6%) and in group B, 97 patients (94.2%) (Fisher's exact test, p=0.38) (Fig. 2). Conclusion : In this study, eliminating the step of sylvian fissure dissection by gentle lateral basal-frontal retraction to the side of the sylvian fissure did not increase morbidity and mortality. However, we do not intend to modify the standard approach to the ACom aneurysm that is familiar to and has been mastered by many others. Rather, we report our experience on the basis of our anatomic understanding of the technique and its results.

• Journal of Korean Neurosurgical Society
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• v.42 no.6
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• pp.455-461
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• 2007

Objective : It was hypothesized that dopamine agonist administration and subthalamic nucleus (STN) lesion in the rat might have a synergistic effect on the neuronal activities of substantia nigra pars reticulata (SNpr) as observed in patients with Parkinson's disease. The effects of SKF38393 (a $D_1$ receptor agonist) and Quinpirole (a $D_2$ receptor agonist) were compared in parkinsonian rat models with 6- hydroxydopamine (6-OHDA) after STN lesion. Methods : SKF38393 and Quinpirole were consecutively injected intrastriatally. SNpr was microrecorded to ascertain the activity of the basal ganglia output structure. The effect of SKF38393 or Quinpirole injection on the firing rate and firing patterns of SNpr was investigated in medial forebrain bundle (MFB) lesioned rats and in MFB+STN lesioned rats. Results : The administration of SKF38393 decreased SNpr neuronal firing rates and the percentage of burst neurons in the MFB lesioned rats, but did not alter them in MFB+STN lesioned rats. The administration of Quinpirole significantly decreased the spontaneous firing rate in the MFB lesioned rats. However, after an additional STN lesion, it increased the percentage of burst neurons. Conclusion : This study demonstrated that dopamine agonists and STN lesion decreased the hyperactive firing rate and the percentage of burst neurons of SNpr neurons in 6-OHDA lesioned rats, respectively. Quinpirole with STN lesion increased a percentage of burst neurons. To clear the exact interactive mechanism of $D_1$ and $D_2$ agonist and the corresponding location, it should be followed a study using a nonselective dopamine agonist and $D_1$, $D_2$ selective antagonist.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.12
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• pp.7005-7011
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• 2014

In this study, due to aging, we propose the possible solutions for a variety of skin problems, skin problems of middle-aged women appear. The object of the present invention is to provide the basic data required for use in cosmetic skin care methods and then to find the direction in accordance with the use situation of the subjective skin cosmetics. For this, total 235 the age of 50's women living in Gyeonggi. Found that the correlation between the method by the subjective skin and cosmetics(***p<.001). Found that the correlation between the method of administration and the skin cosmetic and subjective(***p<.001). These results suggest that training and development can be made for a great skin care program to find the exact status of individuals based on a variety of skin problems from the facial skin of middle-aged women.