• 한국표면공학회지
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• 제57권3호
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• pp.201-207
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• 2024

This study compared the chemical resistance properties according to various sealing treatment methods for the anode film formed during the anodization process of Al6061 alloy. Al6061 aluminum was used in four different sealing treatment methods: boiling water sealing, lithium sealing, nickel sealing, and pressurized sealing, and each sample was evaluated for corrosion resistance through a 5% HCl bubble test and the microstructure was observed through a scanning electron microscope(SEM). According to the results, corrosion resistance increased as time and temperature increased in all sealing treatment methods. Relatively, corrosion resistance was high in the order of boiling water sealing, lithium sealing, nickel sealing, and pressure sealing, and the best corrosion resistance was found in pressure sealing. These research results can be helpful in selecting a process necessary to improve the efficiency and performance of anodizing process in the industrial field using aluminum alloys.

• 동의생리병리학회지
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• 제26권5호
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• pp.784-787
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• 2012

Wei symptom(痿證) is symptom that reveals muscle relaxation without contraction an muscle relaxation occurs in the lower or upper limbs, in severe case, leads to death. The symptoms of Wei symptom are weakness, atropy of muscle, gait disturbance, etc. We studied to evaluate the oriental medical treatment on a patient with Wei symptom. We applied various methods of oriental medical treatment including herb medicine, acupunture, moxibustion, herb acupunture. The clinical symptoms that were both lower limbs weakness, gait disturbance, etc. were improved after the methods of oriental medical treatment. The results suggest that oriental medicare is an effective treatment for Wei symptom, but more extensive research is needed.

• 대한한의학회지
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• 제18권2호
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• pp.137-147
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• 1997

The writers have treated in hospital a two-year and 4 month boy child with Guillain-Barre syndrome whose chief complaints are flaccid tetraparalysis and hypesthesia for about three months from December 2, 1996. In the early stage, the principles and methods of treatment such as wind expelling and removal of dampness(?風濕) and obstruction in meridians and collaterals(通經活絡) were used and in the late stage the principles and methods of treatment to invigorate the spleen, replenish Ki(健脾益氣), and nourish the liver and kidneys(滋補肝腎) were applied, together with acupuncture, indirect moxibustion and massotheraphy. Since then, the symptom has gradually improved. Six months after onset, the boy child was recovered to a nearly normal condition. Therefore, this case of treatment is reported, together with consideration of literature.

• 한국물환경학회지
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• 제30권1호
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• pp.95-101
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• 2014

Overall studies for the N-nitrosodimethylamine (NDMA) formation and treatment methods were conducted. In this study, occurrence in several countries and emerging treatment technologies of NDMA were generally reviewed. The NDMA formation was dependent on pH, contact time, and molar ratio (monochloramine/dimethylamine). The formation was rapidly increased when the molar ratio was greater than 1. It was likely that monochloramine could be related to stimulate NDMA formation. NDMA concentrations in water supply and wastewater plants after disinfection were approximately 10 ng/L and 100 ng/L, respectively. UV oxidation and adsorption processes are regarded as effective technologies for the NDMA removal. It is suggested that the UV oxidation with proper lamps is applied in water supply system.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제46권5호
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• pp.358-360
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• 2020

The management of odontogenic keratocysts (OKC) remains a hotly debated topic in oral and maxillofacial surgery. Despite numerous studies and systematic reviews on treatment options, there is a lack of consensus and no accepted protocol on the management of OKC. Hence, the aim of this study was to briefly summarize all large systematic reviews in the literature on the management of OKC and formulate an evidence-based management protocol. Data from five large systematic reviews were combined to calculate the mean recurrence rate for each technique. Decompression followed by enucleation along with adjuvant methods such as application of Carnoy's solution and peripheral ostectomy can result in very low recurrence and is an acceptable first line treatment. The surgical approach should be determined by lesion size, patient age, proximity to vital structures, accessibility, soft tissue/cortical perforation, and if the lesion is recurrent.

• 대한한의진단학회지
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• 제16권1호
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• pp.35-44
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• 2012

Objectives The purpose of this study is to report the effect of oriental demonstration treatment for episodic vertigo of Meniere's disease. Meniere's Disease characterized by recurrent prostrating episodic vertigo, nausea, vomiting, sensory hearing loss, tinnitus, and a feeling of fullness in the ear associated with generalized dilation of the membranous labyrinth (endolymphatic hydrops). The cause of Meniere's disease is unknown, and the pathophysiology is poorly understood. Methods We experienced one case of Meniere's disease treated with Asian medical treatment, acupuncture and herbal medication. 64-year-old female patient was diagnosed with Meniere's disease by western medical doctor. Methods: Saam acupuncture Sojangjungkyuk applied to the patient. Results After treatment her episodic vertigo, nausea, vomiting and endolymphatic hydrops were decreased but the level of tinnitus it was not improved as much as other symptoms. Conclusions Saam Acupuncture of Asian medical treatment could be safe and effective.

• Journal of Chest Surgery
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• 제53권4호
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• pp.191-199
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• 2020

Surgeons recommend dissecting lymph nodes in the thorax, abdomen, and neck during surgery for esophageal cancer because of the possibility of metastasis to the lymph nodes in those areas through the lymphatic plexus of the esophageal submucosal layer. Extensive lymph node dissection is essential for accurate staging and is thought to improve survival. However, it can result in several complications, including chyle leakage, which refers to continuous lymphatic fluid leakage and can occur in the thorax, abdomen, and neck. Malnutrition, fluid imbalance, and immune compromise may result from chyle leakage, which can be potentially life-threatening if it persists. Therefore, various treatment methods, including conservative treatment, pharmacological treatment such as octreotide infusion, and interventions such as thoracic duct embolization and surgical thoracic duct ligation, have been applied. In this article, the risk factors, diagnosis, and treatment methods of chyle leakage after esophagectomy are reviewed.

• 상하수도학회지
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• 제19권2호
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• pp.214-220
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• 2005

Errors may occur due to analysis methods and water quality during the application of the on-line particle counter In water treatment process. Errors caused by analysis methods include particle destruction by shear force due to inflow speed and tube friction, as well as interruption by screening, bubbles and contaminants. Since errors happen frequently because of these factors, it is necessary to examine and evaluate such errors during the application of a particle counter. Errors can be large due to screening and bubbles. Measurement values are effective for water analysis after filtration process. However, because of screening, only measurement values for particles above $7{\mu}m$ are valid for water with a turbidity between 3-10NTU. As particle numbers around $10{\mu}m$ increase a lot after ozone treatment, sufficient pretreatment process is necessary. Physical conditions should keep stable for inflow to decrease errors caused by shear force.

• Environmental Engineering Research
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• 제24권2호
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• pp.191-201
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• 2019

Petroleum industry produces one of the popular hazardous waste known as Petroleum Sludge. The treatment and disposal of petroleum sludge has created a major challenge in recent years. This review provides insights into various approaches involved in the treatment, and disposal of petroleum sludge. Various methods used in the treatment and disposal of petroleum sludge such as incineration, stabilization/solidification, oxidation, and bio-degradation are explained fully and other techniques utilized in oil recovery from petroleum sludge such as solvent extraction, centrifugation, surfactant EOR, freeze/thaw, pyrolysis, microwave irradiation, electro-kinetic method, ultrasonic irradiation and froth flotation were discussed. The pros and cons of these methods were critically considered and a recommendation for economically useful alternatives to disposal of this unfriendly material was presented.

• 한국산업융합학회 논문집
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• 제25권6_2호
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• pp.1083-1090
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• 2022

Since renal cell carcinoma(RCC) has various examination and treatment methods according to clinical stage and histopathological characteristics, it is required to determine accurate and efficient treatment methods in the clinical field. However, the process of collecting and processing RCC medical data is difficult and complex, so there is currently no AI-based clinical decision support system for RCC treatments worldwide. In this study, we propose a clinical decision support system that helps clinicians decide on a precision treatment to each patient. RCC standard big database is built by collecting structured and unstructured data from the standard common data model and electronic medical information system. Based on this, various machine learning classification algorithms are applied to support a better clinical decision making.