• 공업화학
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• 제32권1호
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• pp.20-27
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• 2021

DTO (dimethyl ether to olefins) 반응에서 촉매의 수명 향상을 목적으로 SAPO-34 촉매의 식각 처리 효과를 연구했다. NH3 수용액은 HCl과 같은 강산 또는 NaOH와 같은 강알칼리 수용액과 비교하여 식각의 진행 정도를 제어할 수 있는 적절한 처리제였다. 따라서 NH3 수용액의 처리 농도와 시간을 변수로 하여 SAPO-34 촉매의 특성과 수명에 미치는 영향을 관찰하였다. NH3 수용액의 처리 농도 또는 시간이 증가함에 따라 SAPO-34 촉매 결정 면의 중심에서부터 침식이 진행되었으며, 점차적으로 산 점 농도와 산 세기가 감소하는 것으로 나타났다. 한편, 적절한 처리 조건에서 SAPO-34 촉매의 외부 표면적과 메조 세공 부피는 증가하는 것으로 나타났다. 처리 농도와 시간이 각각 0.05 M와 3 h일 때, 처리된 SAPO-34 촉매의 수명이 가장 우수했으며 처리 전 촉매와 비교하여 약 36% (DME 전환율 > 90% 기준)까지 크게 향상되었다. NH3 수용액을 이용한 온화한 처리과정에서 SAPO-34 촉매의 식각 진행에 대한 모형을 제안하였다.

• Journal of Acupuncture Research
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• 제33권4호
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• pp.39-47
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• 2016

Objectives : This study was conducted to examine the clinical effects of thread embedding acupuncture on lumbar herniated intervertebral disc patients. Methods : This is a retrospective study based on clinical charts. Despite the treatments of acupuncture, pharmacopuncture, herbal medicine, and physical therapy during admission period, 10 lumbar herniated intervertebral disc patients who had shown few improvements in their symptoms were selected as subjects. Thread embedding acupuncture was conducted to reduce patient pain. Patient progress was categorized into three periods based on when the embedding procedure performed. Verbal numeric rating scale (VNRS), Oswestry disability index (ODI), and a 5 step evaluation scale for satisfaction were used to analyze the outcome. Results : Regarding comparison of VNRS improvement rate, both 3 and 6 days after embedding progress showed significant difference compared to before embedding progress. ODI improvement rate showed significant difference only 6 days after embedding progress. Patients' satisfaction with treatment had increased by several degrees. Conclusion : Thread embedding acupuncture for lumbar herniated intervertebral disc patients may be effective in reducing pain and improving their quality of life.

• 대한족부족관절학회지
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• 제19권3호
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• pp.81-85
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• 2015

Acute sprain of the ankle requires comprehensive history taking and physical examination in diagnosing the type of severity and deciding on the plan of treatment. Literature supports functional treatment as the treatment of choice for grade I and II injuries. During the acute phase, the goal of treatment focuses on controlling pain and swelling. PRICE (protection, rest, ice, compression, and elevation) is a well-established protocol at this phase. There is some evidence that application of ice and use of nonsteroidal anti-inflammatory drugs improves healing and speeds recovery. Then the functional treatment (motion restoration and strengthening exercises) is administered to progress the rehabilitation appropriately in order to facilitate healing and restore the mechanical strength and proprioception. Early mobilization has been shown to result in more rapid return to work and daily activities than immobilization. Grade III injuries still generate controversy in terms of the best management available, and more studies on early mobilization, cast immobilization, or surgery are needed. Even the Cochrane reviews published to date are not conclusive.

• 한국의학물리학회지:의학물리
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• 제29권2호
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• pp.73-80
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• 2018

Accelerated partial breast irradiation (APBI) is a new treatment delivery technique that decreases overall treatment time by using higher fractional doses than conventional fractionation. Here, a quantitative analysis study of CyberKnife-based APBI was performed on 10 patients with left-sided breast cancer who had already finished conventional treatment at the Inha University Hospital. Dosimetric parameters for four kinds of treatment plans (3D-CRT, IMRT, VMAT, and CyberKnife) were analyzed and compared with constraints in the NSABP B39/RTOG 0413 protocol and a published CyberKnife-based APBI study. For the 10 patients recruited in this study, all the dosimetric parameters, including target coverage and doses to normal structures, met the NSABP B39/RTOG 0413 protocol. Compared with other treatment plans, a more conformal dose to the target and better dose sparing of critical structures were observed in CyberKnife plans. Accelerated partial breast irradiation via CyberKnife is a suitable treatment delivery technique for partial breast irradiation and offers improvements over external beam APBI techniques.

• Progress in Superconductivity
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• 제4권1호
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• pp.90-93
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• 2002

The sintering process of BSCCO 2223 tapes is a complex process that is very sensitive to parameters, such as temperature, oxygen partial pressure, heating and cooling rate and holding time. During the first heat treatment, 2212 phase of precursor powder is partially transformed into 2223 phase and some residual secondary phases, such as $(Bi,Pb)_2$$Sr_2$CuO／sub y／(2201), $(Ca,Sr)_2$CuO／sub y／(2/1AEC), (Ca,Sr)／sub 14／Cu／sub 24／O／sub 41／(14／24 AEC) etc. The secondary phases are difficult to be removed from the BSCCO 2223 matrix on the heat treatment. These secondary phases degrade the critical current density. In order to minimize the amount and size of alkaline earth cuprate(AEC) particles step heat treatment is applied during the first heat treatment under the varying atmosphere. Experimental results showed that by adapting the step heat treatment process, the amount and particle size of the secondary phases in the final tapes are decreased. Consequently, the BSCCO 2223grain texture and Jc properties are improved.

• 디자인학연구
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• 제11권1호
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• pp.99-108
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• 1998

본 연구는 대학생을 대상으로 학습전략훈련이 도형 적 창의력에 어떠한 영향을 미치는지를 연구하는데 목적이 있다. 연구의 목적을 효과적으로 달성하기 위하여 다음과 같은 가설을 설정하였다. <가설I>학습전략 훈련을 받은 학습자들은 창의력을 요하는 수업에서도 학습전략이 습득될 것이다. <가설II>창의력 향상 프로그램 훈련을 받은 학습자들은 훈련을 받은 후 도형 적 창의성 향상의 정도가 높을 것이다. 연구에 사용된 도구로는 자기조절 학습전략을 기초로 한 훈련프로그램과 도형 적 창의력 검사 지를 사용하였다. 연구의 결과는 첫째, 학습전략훈련을 받은 대학생들도 창의력을 요하는 수업에서 학습전략이 가능한 것으로 확인되었다. 둘째, 학습전략 훈련을 받은 대학생들이 도형 적 창의력이 향상되었다.

• 생물정신의학
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• 제21권4호
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• pp.115-117
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• 2014

Variety of biomarkers that are related to the Alzheimer's disease and its diagnosis and progress have been found. However, research lacks in predicting the reaction of the treatment. In addition, there is no definite treatment reaction to the disease but rather it is varied. The purpose of this review article is to study the research of the biomarkers that are able to predict the treatment reaction. There was a research that illustrated a relationship between plasma amyloid ${\beta}$ peptide, cerebrospinal fluid tau, neuroanatomical biomarkers and acetylcholinesterase inhibitors. Polymorphisms in genes of the cholinergic markers AChE, BuChE, ChAT and PON-1 were found to be associated with better clinical response to acetylcholinesterase inhibitors. Many pharmacogenetic studies have been conducted to evaluate the impact of the lipoprotein apolipoprotein E (APOE) genotype on treatment response to acetylcholinesterase inhibitor. However, there is no significant influence of the APOE genotypes on treatment response. Further research is needed to find other predictors of treatment with acetylcholinesterase inhibitors in patients with Alzheimer's disease.

• Membrane and Water Treatment
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• 제3권1호
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• pp.1-23
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• 2012

The coupling of anaerobic biological process and membrane separation could provide excellent suspended solids removal and better biomass retention for wastewater treatment. This coupling improves the biological treatment process while allowing for the recovery of energy through biogas. This review gives a basic description of the anaerobic wastewater treatment process, summarizes the state of the art of anaerobic membrane bioreactors (AnMBRs), and describes the current research trends and needs for the development of AnMBRs. The research interest on AnMBR has grown over the conventional anaerobic processes such as upflow anaerobic sludge blanket (UASB). Studies on AnMBRs have developed different reactor configurations to enhance performances. The AnMBR performances have achieved comparable status to other high rate anaerobic reactors. AnMBR is highly suitable for application with thermophilic anaerobic process to enhance performances. Studies indicate that the applications of AnMBR are not only limited to the high strength industrial wastewater treatment, but also for the municipal wastewater treatment. In recent years, there is a significant progress in the membrane fouling studies, which is a major concern in AnMBR application.

• 대한한방체열의학회지
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• 제8권1호
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• pp.26-32
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• 2010

Purpose : To quantitative analyse the hot flush and abdominal cold hypersensitivity relief efficacy of Cheonglijagamtang in climacteric women by DITI. Methods : The patients was a 59-year-old climacteric woman who was suffered by hot flush and abdominal cold hypersensitivity. The patient was treated by herb medicine, acupuncture treatment, moxa treatment and physical treatment. The progress of symptoms was evaluated by checking the change of VAS, and inspecting the DITI. Results : Visual analog scale of hot flush and abdominal cold hypersensitivity in this climacteric women have decreased after treatment. The temperature of two abdominal site(RN12.RN4) after treatment get higher than those before treatment. Difference of acupoint-Indang and other abdominal site(RN12.RN4)'s temperature have decreased after treatment. Conclusion : The result suggest that DITI can be used for the diagnosis of hot flush and coldness relief efficacy in climacteric women.

• 대한한방내과학회지
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• 제13권2호
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• pp.77-83
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• 1992

Clinical studies were done on 43 cases of Tan-San(呑酸) patient which were treated by outpatient, took medicine with Ge-Wool-Hwa-Dam-Jeon (開鬱火痰煎) in Dept. of 2nd clinic, Christian Oriental Hospital from June in 1991 to end of May in 1992. The results were as follows. 1. The ratio of sex and age was 37.2% males (16 cases) and 62.7% females (27 cases) somewhat higher than males, In the age distribution, the highiest decade was thirtieth decade 48.83% (21 cases). 2. In the vocational distribution, housewives 51.16% (22 cases), commerces 23.25% (10 cases), company employee, teachers, students were in order of frequency and in the regional distribution was city 93.02% (40 cases), from village 6.97% (3 cases). 3. In the type distribution, the highiest frequency was Gan-Gi-Beom-Wi(肝氣犯胃) type 53.48% (23 cases), and Sik-Jeok (食積) 18.8% (8 cases), Bi-Gi-Heo(脾氣虛) 16.27% (7 cases) were in order of frequency. 4. In the western name of a disease distribution, the highiest frequency was chronic gastritis 37.20% (16 cases). 5. In the period of history, the highiest freguency was between six months and one year 23.25% (10 cases), furthermore between 5 years and 10 years 2.32% (40 cases). 6. In the treatment period, the highiest frequency was between 3 weeks and 4 weeks 38.46% (10 cases), and between one month and 2 months 30.76% (8 cases) was in order of frequency. 7. Treatment progress found out progressed 74.2% (26 cases) among the 35 cases which was known treatment progress.