본 연구는 농업과 복지연계를 통해 건강회복･유지･증진으로 사회적비용을 절감함과 동 시에, 농촌의 새로운 활로 및 소득원 창출을 통한 농업･농촌의 지속 가능한 성장을 견인 하기 위해 치유농업 정책 및 사업이 추진 되고, 2020년 ‘치유농업 연구개발 및 육성에 관한 법률’(이하 ‘치유농업법’)이 제정되어 치유농업이 법제화된 5년 차 즈음에 그동안의 한국 치유농업의 추진 현황을 분석하고 현업에 종사하는 치유농장의 입장에서 한국 치유 농업의 한계와 문제점을 분석하여 이를 반영한 한국 치유농업의 발전 방향을 제시하고자 한다. 연구목적을 달성하기 위해 문헌조사를 실시하고 총설연구를 수행하기 위해 발행된 논문, 기사, 보고서 및 농촌진흥청에서 발간한 치유농업사 교재 및 자료와 제1차 치유농 업 연구개발 및 육성종합계획(’22∼’26) 를 참조하였다. 주요 검색어는 ‘치유농장’, ‘원예’, ‘동물을 활용한 치유농장’, ‘치유농업의 현황’, ‘치유농업의 한계’, ‘치유농업의 문제점’, ‘치유농업의 발전방향’, 농사백과, 현장정보, 농촌문화 데이터를 검색 할 수 있는 ‘농사로’ 에서 하였다. 논문 검색 범위는 2000년부터 2024년까지 발행된 논문 8개와 기사 8개 학술지 3개를 대상으로 문헌조사를 수행하였다. 데이터검색 방법으로는 국가과학기술성 보 센터(NDSL), 한국학술연구정보서비스(KERIS), 한국학술정보서비스(KISS), 농사로, 농촌진흥청, 학술연구정보서비스(RISS) 등 6곳과 인터넷 언론매체에서 치유농업과 관련 된 자료만을 선택하여 검색 하였다. 한국 치유농업의 발전을 위한 제언으로 1. 치유농업 중앙 컨트롤타워의 필요하다. 2. 치유농업 정책의 통합이 필요하다. 3. 치유농장의 수익성 확보방안 마련이 필요하다. 4. 사회적농업과 연계가 필요하다. 5. 치유농업 시설에 관한 특별법 제정이 필요하다. 6. 치 유농업사 활용방안 마련이 필요하다. 7. 치유농업 효과성 입증 방안 마련이 필요하다.

In this work, the ablation behavior of monolith ZrB2-30 vol%SiC (Z30S) composites were studied under various oxy-acetylene flame angles. Typical oxidized microstructures (SiO2/SiC-depleted/ZrB2-SiC) were observed when the flame to Z30S was arranged vertically. However, formation of the outmost glassy SiO2 layer was hindered when the Z30S was tilted. The SiC-depleted region was fully exposed to air with reduced thickness when highly tilted. Traces of the ablated and island type SiO2 were observed at intermediate flame angles, which clearly verified the effect of flame angle on the ablation of the SiO2 layer. Furthermore, the observed maximum surface temperature of the Z30S gradually increased up to 2,200 °C proving that surface amorphous silica was continuously removed while monoclinic ZrO2 phase began to be exposed. A proposed ablation mechanism with respect to flame angles is discussed. This observation is expected to contribute to the design of complex-shaped UHTC applications for hypersonic vehicles and re-entry projectiles.

Nitrogen trifluoride (NF3) and Sulfur hexafluoride (SF6) are usually used as novel etching and cleaning gases in semiconductor industry and electrical equipments. Recently, the many studies about PFCs decomposition have been performed due to high global warming potential (GWP). This study is to identify the effects of the hydrogen on the destruction and removal efficiency (DRE) of NF3 and SF6 when using the electron-beam. The experiment was conducted at a flow rate of 10 LPM with NF3 and SF6 of 1,000 ppm. Absorbed dose (electric current) was 1,028 kGy (5 mA). The DREs of NF3 and SF6 gases increased about 54% and 68% respectively with hydrogen injection. By-products formed by NF3 and SF6 destruction were mainly HF and F2 gases. In addition, the particles were generated during the NF3 and SF6 destruction due to corrosion of reactor and SF6 decomposion, respectively.

The decomposition of NF3 using only an electron beam, and an electron beam in the presence of hydrogen are assessedin terms of the destruction and removal efficiency (DRE, %). Experiments were conducted at a flow rate of 500LPM.The inlet concentration of NF3 in nitrogen gas was about 1,000ppm, and the concentration of hydrogen ranged from 1,500to 8,000ppm, respectively. Absorbed dose (kGy) and electric current ranged from 33.87 (5mA) to 203.21kGy (30mA).The results in this study indicate that the DRE increased about 35% with hydrogen addition at electric current 30mA.Additionally hydrogen gas played a significant role in the constituents of byproducts.

Sulfur hexafluoride has an extremely high global warming potential (GWP) because of strong absorption of infraredradiation and long atmospheric lifetime which cause the global warming effect. This study is to identify the effects ofdestruction and removal efficiency of SF6 by the addition of conditioning agent (oxygen, water vapor and hydrogen) whenusing the high ionization energy. The irradiation intensity of ionization energy was 2mA, 5mA, 10mA and 15mA. TheSF6 was completely removed with H2O and H2 gas injection at 2mA. Main by-products were HF and F2 gases. HF andF2 gas formation was increased with irradiation intensity increasing. Most of the by-products of particle were sulfur andmetal sulfate.

Research results for the pressure drop variance depending on operation conditions such as change of inlet concentration, pulse interval, and face velocity, etc., in a pulse air jet-type bag filter show that while at 3kg/cm2 whose pulse pressure is low, it is good to make an pulse interval longer in order to form the first layer, it may not be applicable to industry because of a rapid increase in pressure. In addition, the change of inlet concentration contributes more to the increase of pressure drop than the pulse interval does. In order to reduce operation costs by minimizing filter drag of a filter bag at pulse pressure 5kg/cm2, the dust concentration should be minimized, and when the inlet dust loading is a lower concentration, the pulse interval in the operation should be less than 70 sec, but when inlet dust loading is a higher concentration, the pulse interval should be below 30 sec. In particular, in the case that inlet dust loading is a higher concentration, a high-pressure distribution is observed regardless of pulse pressure. This is because dust is accumulated continuously in the filter bag and makes it thicker as filtration time increases, and thus the pulse interval should be set to below 30 sec. If the equipment is operated at 1m/min of face velocity, while pressure drop is low, the bag filter becomes larger and thus, its economics are very low due to a large initial investment. Therefore, a face velocity of around 1.5 m/min is considered to be the optimal operation condition. At 1.5 m/min considered to be the most economical face velocity, if the pulse interval increases, since the amount of variation in filter drag is large, depending on the amount of inlet dust loading, the operation may be possible at a lower concentration when the pulse interval is 70 sec. However, for a higher concentration, either face velocity or pulse interval should be reduced.