• Proceedings of the Korea Air Pollution Research Association Conference
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• 1999.04a
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• pp.162-163
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• 1999

• Journal of Microbiology and Biotechnology
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• v.4 no.1
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• pp.63-67
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• 1994

A microorganism showing degradative activity towards benzene, toluene and ${\rho}-xylene$ (BTX) was isolated from an activated sewage sludge and was tentatively identified as Pseudomonas fluorescence BE103. This strain was found to utilize benzene and toluene as growth substrates, but to degrade ${\rho}-xylene$ in the obligate presence of a growth substrate. The metabolic product resulted from the cometabolism of ${\rho}-xylene$ was identified as 3, 6-dimethylpyrocatechol by LC/MS analysis, and the metabolic pathway was analyzed to be similar to the tod pathway. From the kinetic studies done regarding BTX biodegradation using Pseudomonas fluorescence BE103, it was revealed that the cometabolism of ${\rho}-xylene$ is significantly affected by the ratio of growth substrate concentration to biomass concentration, and that the cometabolism of ${\rho}-xylene$ initiates only when this ratio was about 0.03.

• Journal of Veterinary Clinics
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• v.35 no.2
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• pp.50-52
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• 2018

A 6-month-old castrated male poodle presented with a cough, dysphagia, and regurgitation. Cricopharyngeal achalasia (CPA) was diagnosed by clinical history and a fluoroscopic examination. The animal received a botulinum toxin (BTX) injection but symptoms had not resolved by three days after injection. Thus, a cricopharyngeal and thyropharyngeal muscle myotomy was performed and immediately the clinical signs resolved. This report describes successful correction of CPA with myotomy after failure of BTX injection in a dog.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.41
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• pp.45.1-45.9
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• 2019

Botulinum toxin (BTX) has various therapeutic indications: bruxism, square jaw, facial wrinkle, oral ulcer and maxillofacial pain, etc. In this paper, we will discuss the effectiveness of using BTX in dental implant surgery and orthognathic and orthodontic treatment. We summarized the clinical application of botulinum toxin in the maxillofacial field at the finale.

• The Journal of the Korean dental association
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• v.48 no.12
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• pp.889-892
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• 2010

Botulinum toxin type A (BTX-A), a potent neurotoxin that reversibly blocks presynaptic acetylcholine release, has been applied successfully to treat facial spastic conditions such as blepharospasm, strabismus and cervical dystonia. Since the first reported application in dentistry in 1994, BTX-A has been used with great success to used in the orofacial region to help treat masticatory and facial muscle spasm, severe bruxism, facial tics, and hypertrophy of the masticatory muscles. The clinician may be aware of the many courses becoming available and aimed at dentists to start using it in the cosmetic context. This article intends to provide a basic understanding of the many functional uses of the drug in the orofacial region that may be relevant to everyday practice, especially in orthodontic field.

• Journal of Environmental Science International
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• v.11 no.12
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• pp.1327-1331
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• 2002

The cork have been preferred over the conventional materials, zeolite, ceramics, and lignite as a biofilter medium. During the 6 months of operation, the performance of the cork biofilter was considered good with 150ppm of mixture BTX vapor efficiencies greater than 90% at 60 second of EBCT. It was observed 56 % of removal efficiency under transition conditions at first stage, and then the removal efficiency was increased to above 90 %, and the sustainability of removal efficiency was maintained. At second stage, the performance of cork biofilter was not decreased 90 % efficiency with 150 ppm BTX at 30 sec. EBCT. The production of $CO_2$ due to microbial respiration was increased to the 40 % on the operation of cork biofilter.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 1999.10a
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• pp.443-444
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• 1999

악취는 냄새를 유발하는 기체상 물질이 사람의 후각을 자극하여 불쾌감이나 혐오감을 주는 상태를 말한다. 악취물질은 정유공장, 화학공장, 하수처리장, 분뇨 및 축산 폐수처리장, 매립장 등의 다양한 발생원이 있으며, 여러가지 복합된 화합물이 원인이 되어 악취를 유발한다. 단위 물질로서 황화수소(H$_2$S)는 계란 썩는 냄새, 메르캅탄(mercaptan)류는 야채 썩는 냄새, 아민류는 생선냄새 등의 특이한 냄새를 유발하며, 최저 감지값은 물질별로 상당한 차이를 나타내고 있다(이광묵, 1993).(중략)

• Korean Journal of Hazardous Materials
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• v.3 no.1
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• pp.52-58
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• 2015

Since the HF release in 2012 in Korea, it became one of the most significant to evaluate consequence to the vicinity of industry facilities handling hazardous materials. BTX plant is selected to assess off-site risk to check whether the facility satisfies the Chemical Control Law by Korea Government. Accident scenarios were listed using process safety information. The scenarios having effect to the off-site were selected and assessed further according to guideline provided by Korea government. Worst case and alternative scenarios including other interested scenarios were evaluated using ALOHA. Each evaluated scenario was assessed further considering countermeasures. The results showed that the facility handling chloric acid is safe enough and needed no further protections at the moment.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.05a
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• pp.574-575
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• 2023

뇌종양은 인체에 발생하는 여러 종양 중 세 번째로 많이 나타난다. 뇌종양 환자 수는 지속해서 증가하고 있으며, 별도의 예방법이 존재하지 않아 빠른 진단 및 종양 종류에 따른 치료가 매우 중요하다. 현재 뇌종양 진료는 전문의가 전용 소프트웨어로 뇌 Magnetic Resonance Imaging(MRI) 이미지를 확대, 축소하여 자세히 살펴보면서 종양의 크기, 위치, 양성/악성 여부 등을 판단한다. 이 방식은 의사의 숙련도에 따라 진료 시간과 판독의 차이가 크고 오진 가능성이 있다. 본 논문은 뇌종양 종류별 MRI 이미지가 학습된 CNN 모델을 사용한 의사의 뇌종양 진단 시간 단축, 진단 정확도 향상을 통해 환자 치료의 효율성을 높이는 방안으로 Brain Tumor X를 제안한다.

• Proceedings of the Zoological Society Korea Conference
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• 1998.10b
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• pp.169.1-169
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• 1998

No Abstract, See Full Text