Survey of Cultivation and Status of Gerbera Smart Farms

Oh Keun Kwon,Jae Ah Jung,Myung Suk Ahn,Hyun Young Song,Manjulatha Mekapogu,Dan Hye Kim,Doo Jong Ha 한국화훼학회 2021 화훼연구 Vol.29 No.4

본 연구는 거베라 주산지인 경북과 경남 지역의 농가 재배 및 스마트팜 현황을 조사하고 분석하고자 수행하였다. 조사방법은 2020년 81 농가를 대상으로 대면 설문조사를 실시하였다. 거베라 경영주 연령은 50∼60대가 71.6%로 가장 많았고, 30∼ 40대가 16%, 70세 이상이 9.9%, 30세 이하는 2.5% 순이었다. 거베라 재배 경력은 5년 이하가 37%였으며, 6∼10년 25.9%, 11∼20년 29.6%, 21년 이상 농가가 7.4%였다. 재배 면적은 0.3 ∼0.6ha가 61.7%로 가장 많았고, 0.3ha 미만이 30.9%, 0.6ha 이상이 7.4%였으며, 전체 평균재배 면적은 0.37ha였다. 거베라 재배 농가당 평균 인력은 자가 노동력 2.1명, 고용 노동력 0.8명 이었다. 재배 방식에서 토경 88.9%, 양액재배 농가는 11.1%였다. 국산품종을 전체 또는 일부라도 재배하고 있는 농가는 61.7%였고 외국산 거베라 품종만 재배하고 있는 농가는 38.3% 였다. 거베라 병해충 발생조사에서 병 발생이 많았다고 응답한 농가는 91.4%였으며, 충 발생이 많았다고 응답한 농가는 98.8% 였다. 스마트팜 시스템을 설치한 농가는 12.3%였으며, 설치하지 않은 농가에서 향후 설치할 의향이 있다고 응답한 농가는 76.9% 였다. 향후 경영계획을 묻는 질문에서 현상유지 80.2%, 축소 8.6%, 경영확대 11.1%였으며, 경영 확대를 대답한 농가는 경북 지역이 8농가로 경남지역 1농가 보다 많았다. This study was conducted to investigate and analyze gerbera cultivation and the status of smart farms in Korea. The survey was conducted in person for 81 farms, in 2020. About 71.6% managers of the gerbera farms were in their 50s and 60s, 16% in their 30s and 40s, 9.9% were over 70, and 2.5% under 30. About 37% of the farmers have cultivation experience of less than five years; 25.9%, 6–10 years; 29.6%, 11–20 years; and 7.4%, over 21 years. Around 61.7% of the area under gerbera cultivation was 0.3–0.6 ha, 30.9% was less than 0.3 ha, and 7.4% was over 0.6 ha; and the average area under cultivation was 0.37 ha. The average family labor of the gerbera farms was 2.1 people and the employed labor was 0.8 people. The cultivation methods included about 88.9% soil and 11.1% nutrient cultivation farms. However, 61.7% of the farmers cultivated all or part of the domestic gerbera varieties, whereas 38.3% only cultivated foreign varieties. In the pest survey, around 91.4% of the farm managers responded to have observed different diseases, and around 98.8% farms exhibited various pests. The smart farm system has been installed by 12.3% of the farming households. However, 76.9% of farming households with no prior smart farms are planning to install them in the future. Future plans include the status quo of 80.2%, reduction in total area by 8.6% and expansion in total area by 11.1%, and around eight farms in Gyeongbuk and one farm in Gyeongnam area are planning to expand their management.

The HBV DNA Amounts in Serum Have No relationship with ALT level and Hetergeneous Population Coexits in Chronic Hepatitis B Virus Infection

Chun, Yoon-Keun,Ha, Joo-hun,Hong-Jung-Woo,Oh, Soo-Myung,Kim, Sung-Soo 경희대학교 동서의학연구소 1999 INTERNATIONAL SYMPOSIUM ON EAST-WEST MEDICINE Vol.1999 No.1

Yoon-Keun Chun¹,Joohun Ha□Hong-Jung Woo□, Soo Myung Oh□,Sung Soo Kim□ ¹Department of Molecular Biology, College of Medicine,²Department of Surgery, college of Medicine,³Department of Internal Medicine, College of Oriental Medicine,and ⁴East-Weat Medical Reserch Institute,Kyung Hee University, Seoul, Korea. The HBV DNA Amounts in Serum Have No relationship with ALT level and Hetergeneous Population Coexits in Chronic Hepatitis B Virus Infection. Proceedings of International Symposium on East-West Medicine, Seoul. 212-230, 1999. -Hepatitis B is caused by hepadnavirus. Hepatitis B virus replicates through 3.5kb pregenomic RNA intermediate which is regulated by core promoter. Pathogenesis of hepatitis B virus has been bilieved the result of host immune response. But recently many studies have reported that high level of viral replication caused by mutation in core promoter might result in severs hepatitis. But these studies were performed in vitro, not in vivo. So there is yet debate about which factor, viral of host factor, is more important in pathogenesis of hepatitis B virus. So we measured real viral replication level in 204 chronic hepatitis B patients by quantifying HBV DNA from sera by our novel PCR-based more sensitive method, and compared these results with ALT level measured from same sera, which indicates liver cell damage. Surprisingly there are no significant correlation between HBV DNA quantity and ALT level. Then we cloned core promoter region. In SSCP, we found that many viral mutants coexist in one patient. Base on SSCP result, we chose main viral core promoter type in each patients, which is thought to determine overall viral replication level in this patient. Main type of core promoter region of each 41 patients were directly sequenced. And with these we measured promoter activity by luciferase assay system and compared promoter activity with on another. We found tha there were some differences in promoter activity according to core promoter sequences. And we constructed replication-competent viral constructs with core promoter from 41 patients and Transfected these into HepG2 cell and measured HBV DNA by southern blot. There were also differences in HBV DNA quantity according to core promoter sequences. On these all results we investigated correlation between the effect of HBV core promoter on viral replication in vitro and HBN DNA quantity, ALT level from sera of each patients. We found there is no significant correlation among them. As a result, we concluded that in determining severity chronic hepatitis B patients, host factors of each patient is more important rather than replicative activity of virus itself.

바닷물 살포가 토양 화학성과 마늘 무기성분 함량에 미치는 영향

김명숙(Myung-Sook Kim),이상범(Sang-Bum Lee),김유학(Yoo-Hak Kim),강성수(Seong-Soo Kang),현병근(Byung-Keun Hyun),공효영(Hyo-Young Gong),하상건(Sang-Keon Ha) 한국토양비료학회 2011 한국토양비료학회지 Vol.44 No.6

친환경농업에 많이 사용되고 있는 바닷물을 살포하여 토양의 화학성과 마늘의 무기성분 흡수량의 변화를 조사하였다. 바닷물 원액을 토양에 살포한 직후에는 전기전도도, 치환성 나트륨, 염소이온, 나트륨 흡착비 등이 높아졌다. 그리고, 바닷물의 살포횟수가 증가할수록 토양의 전기전도도, 치환성 나트륨, 염소이온 그리고 나트륨 흡착비가 증가하였다. 바닷물로 투입된 성분들은 표토에 대부분 분포하였으며 수확기에는 심토로의 용탈이 일어나 작물이 생육하는 근권에서는 감소하였다. 그리고 바닷물 원액을 작물체에 살포했을 때 마늘 중의 무기성분인 질소, 칼슘, 마그네슘, 나트륨, 미량원소인 철, 망간, 아연 등의 함량은 줄어들었고 염소이온 함량은 처리횟수가 3회일 경우 유의성 있게 증가되었다 (p<0.05). This study was conducted at the organic farming fields which garlics were planted. The treatments were as follows; water of 3,850 L ha<SUP>-1</SUP> (Control), plots applied 1 time, 2 times and 3 times with sea water of 3,850 L ha<SUP>-1</SUP>. In 3 times sea water treatment plot, the level of EC, Exch. Na and Cl- were 1.1, 2.1, and 3.3 times higher than control plot, respectively. Due to seawater application, the contents of inorganic elements such as T-N, Ca, Mg, Na, Fe, Mn, and Zn in garlic were generally lower than Control, but not significant.

폐결핵으로 오인된 SIADH를 동반한 편평상피 세포폐암 1예

김순제,류하근,김선두,이길도,박봉안,류주성,유재등,김인숙,신현준,문언수 대한노인병학회 1999 Annals of geriatric medicine and research Vol.3 No.4

알탈리환원수(ARW)가 Sprague-Dawley rats에서 Glutathione S-transferase(GST) 활성에 미치는 영향

김진원,김근하,박동국,이규재 최신의학사 2003 最新醫學 Vol.46 No.9-10

소나무(Pinus densiflora) 목질을 이용한 수용액 중의 Cu(II)흡착

김하나,박세근,양경민,김영관 강원대학교 산업기술연구소 2007 産業技術硏究 Vol.27 No.A

Milled Korean pine (Pinus densiflora) wood was used to evaluate its adsorption capacity of Cu(Ⅱ) ions from aqueous solution by running a series of batch experiments. Prior to the tests, the milled woods were pretreated with 1N NaOH, 1N HNO_(3), and distilled water, respectively, to examine the effect of pretreatment. Within the tested pH range between 3 and 6, copper adsorption efficiency of NaOH-treated wood(96~99%) was superior to the HNO_(3)-treated wood(19~31%) and distilled water-treated wood(18~35%). The efficiency of copper removal by wood enhanced with increasing solution pH and reached a maximum copper ion uptake at pH 5~6. Adsorption behavior of copper onto both raw and HNO_(3)-treated woods was mainly attributed to interaction with carboxylic acid group. For NaOH-treated wood, carboxylate ion produced by hydrolysis or saponification was a major functional group responsible for Cu sorption. NaOH treatment of wood changed the ester and carboxylic acid groups into carboxylate group, whereas HNO_(3) treatment did not affect the production of functional groups which could bind copper. A pseudo second-order kinetic model fitted well for the sorption of copper ion onto NaOH-treated wood. A batch isotherm test using NaOH-treated wood showed that equilibrium sorption data were better represented by the Langmuir model than the Freundlich model.

지방이식의 다양한 임상적 이용

이근철,정영하,김정태,김석권 대한미용성형외과학회 1997 Archives of Aesthetic Plastic Surgery Vol.3 No.1

Generally alloplastic matrials such as collagen compound and liquid silicone injection. or autologous fat injection have been used for correction of surface irregularity. But, except for autologous fat injection, the other methods have been proved to be not effective or even dangerous. Then with the explosion in the popularity of liposuction, the autologous fat injection has been applied to variable clinical uses for contouring of the soft tissue irregularities. The author performed main operations with fat injection as ancillary procedure in 16 patients from 1993 to 1996, and long term follow-ups were reported. The lesions treated most frequently were cheeks, and others were thighs, legs, nasolabial folds and upper eyelids in order of frequency. The donor sites were lower abdomen, thigh, buttock and cheek. Our method of fat injection was used as an ancillary procedure for improving post-operative results in variable cases (craniofacial microsomia, fibrous dysplasia, asymmetry of leg, etc). And the important technical points in our method for reducing the absorption of fat after injection were atraumatic liposuction, multilayered dispersed injection, and 20% overcorrection. We obtained satisfactory aethetic results without major complications.

하지방사통을 동반한 성인 협부결손성 요추전방전위증의 후방요추간유합술 및 추경나사고정술후 추적결과

최철,김근수,최하영,김철진,김형일,이정청 대한신경외과학회 1999 Journal of Korean neurosurgical society Vol.28 No.4

앵커볼트 인발거동의 파괴역학적 해석

조영혁,김인순,변근주,송하원 연세대학교 산업기술연구소 1996 논문집 Vol.28 No.2

Anchor bolts embedded in concrete, used to transfer local loads into structures, are important structural details. The accurate predictions of the ultimate tensile capacity of the anchor bolts governed by the concrete cone failure are very important. The objectives of this study are to predict the fracture behavior of the concrete and to obtain the tensile capacity numerically for the pull-out of anchor bolts embedded in concrete. For this purpose, the methods to evaluate the ultimate tensile capacity of the anchor bolts embedded in concrete are summarized and the fracture behavior and cracking model of concrete are studied. From the concrete fracture analysis based on finite element modeling of the pull-out test, the fracture behavior of concrete including the ultimate tensile capacity of the anchor bolt is obtained. From the comparison between the numerical results and the experimental data, it is shown that the smeared modeling for the numerical predictions of the progressive fracture of concrete due to the pull-out of anchor bolts can be improved by using the line of interface elements along the crack path.

Landsat 영상을 활용한 지리학습교재 구성 방안 : 고등학교 한국지리 북한 관련 단원을 사례로

이민부,최한성,김남신,신근하 한국지리환경교육학회 2003 한국지리환경교육학회지 Vol.11 No.2

본 연구는 북한 지역지리 학습 구성방안을 제시한 것으로, 북한의 지역 특성상 직접적인 자료를 획득하기 어려우므로 Landsat TM 및 ETM 영상을 이용하여 고등학교 한국지리의 북한 관련 단원의 교재를 제작하고, 수업안을 제시해 보았다. 이들 영상은 기하보정, 방사보정, 좌표수정 등의 전처리 과정을 거쳤다. 교재 제작을 위한 분석으로는 토지피복 비교를 위한 Band 조합과 식생 변화 파악을 위한 NDVI 방법을 이용하였다. 교과 내용과 관련한 내용 설계에서는 북한의 식량 현실 및 산지의 농경지 개발에 따른 삼림파괴 내용을 활용하였으며, 학습교재 구성방안에서는 학생들이 직접 사용할 수 있는 북한의 토지이용, 삼림파괴, 식생지수, 북한의 식량부족 등에 관한 학습지안을 제시하고 있다. Landsat 위성영상 분석에는 영상처리 기술 습득, 장비 및 영상 구입에 따른 경제적인 문제가 따르므로 교육당국, 대학, 교재 개발자, 교사 개인의 노력이 따라야 할 것이다. This study aims to suggest a teaching material and program of regional geography of North Korea using Landsat TM and ETM images. These images are preprocessed for geometric, radiometric correction, and geographic grid correction. Analytic techniques of teaching material using images are band combination for land cover analysis and NDVI for vegetation change. Planning of text contents includes food situation, cropland development in mountain slope, and deforestation of North Korea. The student’s worksheet are suggested with contents such as land use, deforestation, vegetation index and food shortage. Education administration, college, teaching material developer, and teacher altogether try to make their efforts to solve economic problems due to image process techniques and image supplying.