본 연구는 해수담수화 플랜트의 에너지 사용량을 이론적으로 분석하고 최적화하기 위한 기법을 개발하기 위하여 수행되었다. 먼저 해수담수화 공정모사 모델을 개발하였으며 이를 이용하여 에너지 흐름을 분석하고 각 단계별 유효에너지와 에너지 손실을 계산하였다.

This study evaluated the quality characteristics of semi-dried noodles prepared with different water contents (wet noodles; 32, 24, 22, 20%, dry noodles; 12%). The drying process was carried out in a drying chamber at 13~18oC temperature and 75~95% humidity. The proximate composition of Korean wheat flour was as follows: water 22.1±3.64%, protein 8.6±0.13%, fat 1.3±0.10%, ash 0.7±0.02%, carbohydrates 67.3±0.10%. As water contents decreased, both L and b values significantly decreased before cooking of noodles, whereas L, a, and b values were not significantly different after cooking of noodles. Weight, water absorption, and volume of cooked noodles significantly increased as water content decreased, whereas turbidity of soup was not significantly different. Cutting hardness before cooking of noodles significantly increased as water content decreased. Sections of noodles after cooking by SEM (scanning electron microscopy) showed roughness and fewer round starch particles as water content decreased. For overall preferences according to the sensory evaluation, noodles prepared with different water contents were not significantly different. According to the results, semidried noodles have development potential to complement the disadvantages of both wet noodles and dry noodles.

SSG(self-healing smart grouting) method, has the characteristics such as an improvement of durability and waterproofing, prevention of leaching and pollution. In this study, several tests were performed such as gel-time measurement, uniaxial compression test, permeability test, chemical resistance test to compare the engineering properties of SSG with the other chemical grouting method(LW, SGR). As results of tests, the SSG method has low possibility of groundwater and ground pollution caused by leaching, furthermore, it has advantages like long/short term waterproofing, strength and durability. Therefore the SSG method can be applicable in the fields as an alternative method where is the problems of existing chemical grouting method.

본 연구는 2000년대 이후 사춘기 이전의 아동(일반적으로 13세 이하)을 상대로 성적 행위를 실행한 10명의 성범죄자 판결자료를 바탕으로, Groth의 소아기호증 ‘분류’유형과 Finkelhor and Araji가 제시한 소아기호증 ‘원인’ 유형을 적용하여, “Groth 분류유형에 의한 소아기호증 원인에 관한 연구”를 진행하였다. 즉, Groth의 분류유형을 적용한 결과, ‘정신성적장애’를 가진 소아기호증자는 DSM-5에서 정의한 소아기호증의 세 가지 진단기준 여부와 기존 임상적 연구에 의해 ‘성적압력 소아기호증자’와 ‘성적폭력 소아기호증자’의 유형으로 분류되었으며, 또한 Finkelhor an d Araji가 제시한 소아기호증의 네 가지 심리적 원인유형(‘정서적 일치’, ‘성적흥분’, ‘차단’, ‘탈 억제’)에 의해, Groth의 소아기호증자 심리적 분류유형이 달라지는 차이점이 나타났다. 따라서 본 연구는 Groth의 소아기호증 분류유형인 ‘성적압력 소아기호증자’, ‘성적폭 력-착취적 소아기호증자’, ‘성적폭력-가학적 소아기호증자’의 세 가지 ‘심리적 분류’를 기준으로 김해선 외 9인의 각 사례를 비교･분석한 뒤, Finkelhor and Araji가 제시한 ‘정서적 일치’, ‘성적흥분’, ‘차단’, ‘탈 억제’의 네 가지 소아기호증 원인유형을 적용하여, Gr oth의 분류유형에 각각 해당하는 소아기호증자의 ‘ 심리적 원인’을 분석하였다. 본 연구결과, Groth의 DSM-5에서 정의한 소아기호증의 세 가지 진단기준에 ‘일부’ 포함되어 아동에게 ‘물리적 강제력’을 수반하는 ‘단순한’ 유형인 ‘성적폭력-가학적 소아기호증자’ 유형(빈도5)이 가장 많은 것으로 분석되었으며, 그리고 이 유형은 Finkelhor and Araji가 제시한 소아기호증의 심리적 원인 중 ‘차단’ 유형(빈도4)과 연관성이 가장 높은 것으로 조사되었다. 또한, 성적폭력-가학적-차단유형의 소아기호증자인 ‘김해선’, ‘이명철’, ‘김수철’, ‘고종석’은 ‘성인 여성과의 정상적인 성적･정서적 차단’의 영향으로 인하여 일시적인 정서불안정, 충동성, 공격성 등의 ‘물리적’ 성향이 나타났으며, 그리고 Pridmore(2005:856-8 65)의 FMRI연구자료 조사결과 측두엽의 용적저하, 물질대사 및 혈류량이 감소하는 뇌손상 장애를 보였다. 따라서 이 장애를 가진 김해선 외 3인에게는 ‘물리적 성적욕구’을 낮춰주는 LHRH(Luteinizing Hormone Releasing Hormone: 황체 형성 호르몬 방출 호르몬) 작용제 약물의 정기적인 사용과 동시에 심리치료가 필요할 것으로 사료된다(Brik en, et. al., 2001: 45-55).

Boron-doped diamond (BDD) electrode has an extremely wide potential window in aqueous and non-aqueous electrolytes, very low and stable background current and high resistance to surface fouling due to weak adsorption. These features endow the BDD electrode with potentially wide electrochemical applications, in such areas as wastewater treatment, electrosynthesis and electrochemical sensors. In this study, the characteristics of the BDD electrode were examined by scanning electron microscopy (SEM) and evaluated by accelerated life test. The effects of manufacturing conditions on the BDD electrode were determined and remedies for negative effects were noted in order to improve the electrode lifetime in wastewater treatment. The lifetime of the BDD electrode was influenced by manufacturing conditions, such as surface roughness, seeding method and rate of introduction of gases into the reaction chamber. The results of this study showed that BDD electrodes manufactured using sanding media of different sizes resulted in the most effective electrode lifetime when the particle size of alumina used was from 75~106 μm (#150). Ultrasonic treatment was found to be more effective than polishing treatment in the test of seeding processes. In addition to this, BDD electrodes manufactured by introducing gases at different rates resulted in the most effective electrode lifetime when the introduced gas had a composition of hydrogen gas 94.5 vol.% carbon source gas 1.6 vol.% and boron source gas 3.9 vol.%.

The purpose of this study was to investigate ash and mineral contents of agricultural products that are widely and specifically grown in Korea, including 23 fruits, 11 cereals and specialty crops, and 11 leaves and vegetables. Pre-treatment of mineral was performed by microwave method. Mineral contents were analyzed by Inductively Coupled Plasma-Optical Emission Spectrometer (ICP-OES) and Inductively Coupled Plasma Spectrophotometry Mass (ICP-MS). Ash contents ranged from 0.20 to 0.69 g/100 g in fruits, 1.62 to 3.80 g/100 g in cereals, and 0.28 to 2.93 g/100 g in leaves and vegetables. Among the 45 samples, the highest contents of ash were found in quinoa (average 3.80 g/100 g), the highest contents of calcium (Ca) were found in Hansan ramie leaves (average 894.79 mg/100 g), the highest contents of phosphorus (P) were found in yellow amaranth(average 661.88 mg/100 g), the highest contents of potassium (K) were found in quinoa (average 1,455.38 mg/100 g), the highest contents of magnesium (Mg) were found in red amaranth (average 434.02 mg/100 g), the highest contents of molybdenum (Mo) were found in moringa (average 482.50 μg/100 g), and the highest contents of selenium (Se) were found in apple mango(average 23.67 μg/100 g).

Pressure retarded osmosis (PRO) processes can be implemented on a number of water types, using different technologies and achieving various power outcomes. In this study, Sewage facility effluent was used for feed solution of PRO and synthetic NaCl water for draw solution. This study was conducted to investigate effect of water quality of pretreatment on power density and flux decline in PRO process. The results show that organic and particulate foulants have to be removed for more stable operation. Flourescence technique with EEM enables to investigate the chemical properties of aquatic organic matter by extracting spectral information. Humic/fulvic matters and soluble microbial by-products were analyzed as the most affecting factors on the PRO performance. As a result of analyzing the whole system based on the energy consumption of the unit process, specific energy consumption(SEC) of the applicable technology for PRO pre-treatment should be about 0.2 kWh/m3 or less.

This study was carried out to obtain useful information on the cost-effective and labor-saving methods in the on-farm pigmented rice cultivation trials that were performed in Gangjn, Jindo and Gimje provinces. Two different pigmented rice cultivars were tested at each site from 2014 to 2015. From the common rice transplant technologies, Wet Hill Direct Seeding Technology (WHDST) was applied and was compared to Transplanting Machine (TM) Technology, which was mainly used for rice transplanting. The results of the study showed that during the trial period, the average C3G contents of pigmented rice ‘Heugkwang’ in Gangjin was 145.5 mg/100g using the WHDST. This was 23.5 mg/100g higher than using TM in Gangjin area. On the other hand, the C3G contents of functional pigmented rice variety ‘Seonhyangheukmi’ was 163 mg/100g under the WHDST while 189.3 mg/100g under the TM. Therefore, it was observed that the C3G contents of functional pigmented rice changed depending on the variety and according to the annual environmental variation. In Jindo area, two years average C3G contents of functional pigmented rice variety ‘Josaengheugchal’ was resulted to 268.1 mg/100g using TM. This C3G contents was 97.8 mg/100g more than the amount obtained using WHDST. For functional pigmented rice variety ‘Shinnongheugchal’, the C3G contents was 247.3 mg/100g in the WHDS, while 249.1 mg/100g in the TM. This indicated that C3G contents tended to be similar based on cultivation method. The C3G contents of the rice variety ‘Heugkwang’ in Gimje area were 34.7 mg/100 g and 20.2 mg/100g using WHDST and TM, respectively. Meanwhile, the C3G contents of functional pigmented rice variety ‘Heugsujeong’ was 85.6 mg/100g in the WHDST and 43.62 mg/100g in the TM. In conclusion, the study showed that the C3G contents of the pigmented rice are affected by the yearly environmental variation, the regions, and the cultivated variety.

목적 : 본 연구는 뇌졸중 환자에게 적용한 삼킴기능평가도구를 분석한 논문으로, 임상에서 대상자의 상태와 상황에 따라 적절한 평가도구를 선택하여 사용할 수 있도록 돕고자 하는 것이 목적이다. 연구방법 : PRISMA 체크리스트와 흐름도를 통해 체계적 고찰을 시행하였고, 데이터베이스는 PubMed, Medline(ProQuest), EBSCO host(CINAHL Plus with full text), 국회도서관(national assembly library of Korea)을 이용하였다. 연구에 선택된 문헌의 질 평가를 위해 PEDro scale(Physiotherapy Evidence Database scale)을 사용하였다. 연구에 사용된 문헌의 수는 총 32편이었다. 문헌에서 사용된 평가도구들은 장비사용의 유무에 따라, 삼킴단계에 따라 분류하였다. 결과 : 최종분석에 포함된 논문에서 삼킴기능을 측정하기위한 평가방법의 수는 총 45가지였다. 이 중 장비를 사용하여 평가할 수 있는 것은 20개, 사용하지 않아도 되는 것은 25개였다. 장비를 사용한 평가도구 중 13개가 비디오투시 삼킴검사(VideoFluoroscopic Swallowing Study; VFSS) 기반 평가도구로 가장 많이 사용되는 것으로 나타났다. 장비를 사용하지 않는 평가도구의 경우 대부분이 구강준비단계 및 구강단계를 관찰하기위한 도구였으나, GUSS (Gugging Swallowing Screen), EAT-10 (Eating Assessment Tool), SSQ (Sydney Swallow Questionnaire), clinical assessment 등은 인두단계 및 식도단계를 관찰하는데 사용되었다. 삼킴단계 를 구분하지 않는 측정도구로 ASHA (American Speech-language Hearing Association), DD (Degree of Dysphagia), DOSS (Dysphagia Outcome and Severity Scale), DSR scale (Dysphagia Severity Rating), FOIS (Functional Oral Intake Scale) 등이 있었으며 이러한 도구들은 영양상태, 식이상태, 삼킴기능정도를 평가하는데 용이하였다. 결론 : 본 연구는 환자의 삼킴단계별 상태나 임상환경에 맞춘 적절한 평가도구를 선택하는데 도움을 줄 수 있을 것이며, 이러한 평가를 기반으로 적절한 치료가 제공된다면 삼킴장애 환자의 회복에도 영향을 줄 수 있을 것이

To determine sugars content of agricultural products and foods, simultaneous quantitative analysis was carried out on fructose, glucose, sucrose, maltose, and lactose by HPLC-RI. Analysis conditions were set as column ZORBAX carbohydrate (4.6 mm ID×250 mm, 5 μm), the mobile phase of 75% ACN, the column temperature of 35oC, sample injection amount of 10 μL and the flow rate of 1 mL/min. Five standard solutions were isolated without interfering peak within 30 minutes and the calibration curves of standard were confirmed excellent linearity from 0.10% to 1.00% with R2≥0.999. Based on the chromatogram of the standard solution, the limit of quantification (LOQ) and the limit of detection (LOD) values were calculated. The accuracy of the analytical values were highest at 100% water extraction method to the fructose 95.7%, sucrose 98.7%, lactose 102.7% respectively, compared with reference value of a certified reference material (BCR644), by applying the four solvent extraction methods. Using an in-house quality control material (infant formula), repeatability and reproducibility values of this experiment were verified on the basis of AOAC guideline and reference values were set up at 1.17 g/100g of glucose, 0.85 g/100g of maltose, and 45.54 g/100g of lactose. Quality control charts were drawn up and used for sugars analysis of agricultural products.

본 연구에서는 한외여과 막을 사용하여 대장균 단독, 대장균 및 Bacillus subtil is 균을 혼합액을 대상으로 제거 효과를 고찰하였으며, 아울러 kaolin, CaCO3 및 urea와 같은 탁도 유발 성분들과 대장균 단독, 대장균 및 Bacillus subtilis 균과의 혼합액에서의 상호작용을 검토하고자 pH 변화, 탁도 제거 효율, urea, kaolin, Ca CO3 제거 효율, 대장균 군 및 Bacillus subtilis 균의 제거 효과를 고찰하였다.

본 연구에서는 환경 친화적 재료를 제조할 목적으로 자연계에 풍부한 bacteri al cellulose를 지지체로 하여 이온교환 특성이 있는 acrylic acid 단량체를 자외선 그라프트 중합법으로 고정시켰다. 이 중합체를 중금속 흡착제로서 막분리 hy brid시스템에 적용하기 위해 모델 용질로 Pb에 대한 흡착거동을 조사하였고 이에 대한 흡착 등온식 및 Benaissa model과 Kurniawan model 속도식을 적용하여 해석하였다.

최근 막여과 정수처리에 대한 관심이 높아지고 있으나, 공정설계를 위한 소프트웨어가 널리 보급되어 있지 않아서 현장적용의 어려움이 발생하고 있다. 본 연구에서는 막여과 정수처리 공정설계를 지원할 수 있는 프로그램과 설계기법을 개발하고자 하였다.

Shale gas has become increasingly important as a viable alternative to conventional gas resources. However, one of the critical issues in the development of shale gas is the generation of produced water, which contains high concentration of ionic compounds (> TDS of 100,000 mg/L). Accordingly, membrane distillation (MD) was considered to treat such produced water. Experiments were carried out using a laboratory-scale direct contact MD (DCMD). Synthetic produced water was prepared to examine its fouling propensity in MD process. Antiscalants and in-line filtration were applied to control fouling by scale formation. Fouling rates (-dJ/dt) were calculated for in-depth analysis of fouling behaviors. Results showed that severe fouling occurred during the treatment of high range produced water (TDS of 308 g/L). Application of antiscalant was not effective to retard scale formation. On the other hand, in-line filtration increased the induction time and reduced fouling.