녹색쌀 생산을 위한 벼 품종들의 특성 비교

원준연,조진웅 한국작물학회 2015 한국작물학회지 Vol.60 No.4

This research analyzed the characteristics of varieties of rice such as a harvest time and yield, and to select a proper variety to product green rice according to a conventional planting culture and a late planting culture. The most proper harvest time of rice, in general, was 15 to 25 days after heading to product the green rice. Sinsunchal among glutinous rice varieties and Chilbo among nonglutinous rice varieties showed the most amount harvest at 25 days after heading, which was a limit harvest time for the whole green rice production in overall rice varieties. The amount of green rice according to transplanting times, the May 30 th transplanting was more than the June 20 th . The yield of green rice harvested at 15~25 days after heading was varied according to varieties. Proper glutinous varieties for green rice production were Dongjinchal, Sangdongchal, Boseokchal, and Sinsunchal, in order of listed, which were transplanted at the May 30 th . Meanwhile, Boseokchal, Backokchal, and Sinsunchal, in order of listed, were proper varieties for green rice production, which were transplanted at the June 20 th . In nonglutinous rice, Samkwang, Nunbora, and Chilbo, which were transplanted at the May 30 th , were proper varieties for green rice production. Hwanggeomnodeul, Hopum, and Chilbo, which were transplanted at the June 20 th , were proper varieties for green rice production. 녹색쌀 생산을 위한 벼 품종들의 적합 품종선발과 수확시기 및 수량 등을 알기 위하여 적기 및 만식재배에 의한 특성을 살펴본 결과 녹색쌀을 생산하기 위한 벼 품종들의 적정수확시기는 일반적으로 출수 후 15~25일 경이 가장 적당하였으며 벼 품종별 녹색통쌀의 한계 수확시기인 출수 후 25 일경 수량은 찰벼 품종으로는 신선찰벼가 가장 많았으며 메벼 품종은 칠보벼가 가장 많았다. 이앙시기별 녹색쌀 수량은 일반적으로 5월30일 이앙이 6월 20일 이앙보다 많았으며 수확시기인 출수 후 15~25일 수량은 품종에 따라 다양하였다. 녹색쌀에 적합한 벼 품종은 5월30일 이앙재배는 찰벼로는 동진찰벼, 생동찰벼, 보석찰벼, 신선찰벼 순으로 적합하였고 6월 20일 이앙재배는 보석찰벼, 백옥찰벼, 신선찰벼 순으로 적합하였다. 메벼는 5월 30일 이앙재배는 삼광벼, 눈보라, 칠보벼가 적합하고 6월 20일 이앙재배일 경우 황금노들, 호품벼, 칠보벼가 적합하였다.

인삼 종자의 발아에 관한 연구 2 : 온도 및 종자처리가 배생장 및 발아에 미치는 영향

元俊淵,曺在星,金顯浩 韓國作物學會 1988 한국작물학회지 Vol.33 No.1

인삼종자의 배생장에 미치는 온도 및 내과피의 영향을 구명하는 한편 미숙배의 생장적온과 후숙배의 저온처리 및 발아적온을 밝히기 위하여 본 실험을 수행하였던 바 그 결과를 요약하면 다음과 같다. 1) 10℃ 이하에서는 종자 내과피의 유무에 관계없이 배의 생장은 정지되고 휴면상태로 되어 있다. 2) 15℃ 및 20℃ 에서는 내과피제거+종자소독 종자의 배생장이 현저히 촉진되었으며 다음이 무처리대조구종자였고 내과피를 소독한 종자의 배생장은 무처리대조구종자에 비해 지연된 결과를 나타내었다. 3) 각 처리종자 모두 20℃ 보다는 15℃ 에서 배의 생장속도가 가장 빨랐던 바 고려인삼종자 배의 생장 최적온도는 15℃ 근처로 인정된다. 4) 배 후숙종자의 저온처리는 5℃ 에서 100일간의 처리가 종자발아에 가장 효과적이었다. 5) 저온처리를 필한 배 후숙종자의 발아 적온은 15℃ 근처였다. Freshly harvested and depulped Korean ginseng seeds were subjected to the seed treatment of removing endocarp plus surface sterilization with sodium hypocloride, surface sterilization only, and nontreated control. These seeds were stratified at temperatures of 5~circ , 10~circ , 15~circ and 20~circC for 20, 40, 60, 80 and 100 days. Embryo growth of the ginseng seeds of which endocarp was removed was most rapid in each stratification temperature and that of sterilized seeds was slower than unsterilized seeds after 80 days stratification at 15~circ and 20~circC . About 15~circC was an optimal stratification temperature for embry growth in ginseng seeds. Chilling treatment at 5~circC for 100 days was needed for better germination of dehisced ginseng seeds. An optimal germination temperature for the ginseng seed following chilling treatment was about 15~circC .

차광처리에 의한 맥문동의 광합성 및 물질 생산 특성

원준연,이충열 韓國藥用作物學會 2002 한국약용작물학회지 Vol.10 No.2

차광 및 광 강도별 맥문동의 광합성속도, 기공전도도 및 증산작용과 그 관련형질간의 상호연관성을 구명하였던 바는 다음과 같다. 맥문동의 광합성속도는 광 강도가 증가함에 따라 증가하였고 PAR 700-1000μmol/m2/s에서 최고치를 나타내었으며 차광에 의해 증가되는 경향이었다. 기공전도도는 광 강도가 증가함에 따라 증가되었고, 광합성속도, 증산작용 및 기공전도도의 일변화는 비슷한 경향의 양상을 띄었다. 광합성속도와 기공전도도와의 관계는 1차직선회귀관계로 고도의 정(正)의 상관이 인정되었으나 대조구와 차광구가 각각 다른 1차회귀직선을 보여 동일한 기공전도도에서 차광구의 광합성속도가 대조구보다 높은 경향으로 나타났다. 증산작용과 기공전도도 및 광합성속도와 증산작용의 관계는 양자간에 모두 1차회귀식의 정(正)의 상관관계가 인정되었다. This study was conducted to investigate the influence of shading treatment on the photosynthetic rate, transpiration rate, stomatal conductance and its any correlations in Liriope platyphylla WANG et TANG. Followings were achieved as a conclusion. The net photosynthetic rate was increased as the PAR was increased and reached maximum at the 700-1000μmol/m2/s of PAR in all of leaves, also this treatment caused a higher net photosynthetic rate in comparison with control. It shows the tendency of increasing stomatal conductance caused by the increment of PAR. The diurnal changes of photosynthesis, transpiration rate and stomatal conductance were increased as the PAR was increased in the morning, but they indicated a decreased tendency in broad day. The relationship between net photosynthetic rate and stomatal conductance is well fit by the first regression linear equation. However, the values obtained from the linear equation have the different, respectively, and have highly significance. From the above results, net photosynthetic rate of shading treatment is higher than control in the same stomatal conductance. Different first regression linear equation were obtained between the transpiration rate and stomatal conductance, photosynthesis and stomatal conductance in during the control and shading treatment, too.

정상 고막으로 보이는 전음성 난청에서의 시험적 고실 개방술

원준연,윤태현,정종우,이광선 대한이비인후과학회 2001 대한이비인후과학회지 두경부외과학 Vol.44 No.2

녹색쌀 생산을 위한 벼 품종들의 특성 비교

원준연,조진웅 한국작물학회 2015 Korean journal of crop science Vol.60 No.4

This research analyzed the characteristics of varieties of rice such as a harvest time and yield, and to select a proper variety to product green rice according to a conventional planting culture and a late planting culture. The most proper harvest time of rice, in general, was 15 to 25 days after heading to product the green rice. Sinsunchal among glutinous rice varieties and Chilbo among nonglutinous rice varieties showed the most amount harvest at 25 days after heading, which was a limit harvest time for the whole green rice production in overall rice varieties. The amount of green rice according to transplanting times, the May 30 th transplanting was more than the June 20 th . The yield of green rice harvested at 15~25 days after heading was varied according to varieties. Proper glutinous varieties for green rice production were Dongjinchal, Sangdongchal, Boseokchal, and Sinsunchal, in order of listed, which were transplanted at the May 30 th . Meanwhile, Boseokchal, Backokchal, and Sinsunchal, in order of listed, were proper varieties for green rice production, which were transplanted at the June 20 th . In nonglutinous rice, Samkwang, Nunbora, and Chilbo, which were transplanted at the May 30 th , were proper varieties for green rice production. Hwanggeomnodeul, Hopum, and Chilbo, which were transplanted at the June 20 th , were proper varieties for green rice production.

Process 學習을 通한 推理力 伸張에 關한 硏究

元俊淵 연세대학교 교육대학원 1977 연세교육과학 Vol.11 No.-

Olfactory and Taste Dysfunction in Patients with Asymptomatic and Mildly Symptomatic COVID-19 in Korea

원준연,허윤,김태석,김충효,이우현 대한비과학회 2021 Journal of rhinology Vol.28 No.1

Background and Objectives: The association between chemosensory dysfunction (CSD) and coronavirus disease 2019 (COVID-19) remains unclear. The aim of the present study was to determine the incidence of olfactory and taste dysfunction in asymptomatic and mildly symptomatic patients with COVID-19 and to evaluate the symptoms associated with CSD in patients with COVID-19. Materials and Method: On March 9, 2020, 309 patients with asymptomatic or mildly symptomatic COVID-19 confirmed by real-time polymerase chain reaction (RT-PCR) were admitted to the No. 7 Community Treatment Center in Korea. An internetbased survey about symptomatology was administered to these patients, with responses obtained from 244 (79.0%). Subjects who completed the survey were enrolled in this study and were categorized into either a CSD group or a normal chemosensory group based on the presence or absence of CSD, respectively. Results: General symptoms, including fever, myalgia, and chills, were most common (29.1%), followed by upper respiratory tract infection (URI) symptoms (20.9%), CSD (20.5%), and nasal symptoms (13.5%). In patients with CSD (n=50), 10 (4.1%) reported no other symptoms. After adjustment for age, sex, past medical history, and other symptoms, general symptoms [odds ratio (OR), 3.63; confidence interval (CI), 1.70-7.76] and nasal symptoms (OR, 7.00; CI, 2.61-18.80) were significantly associated with CSD. Conclusion: The incidence of CSD was relatively high (20.5%) in asymptomatic and mildly symptomatic patients with COVID-19. General symptoms were independent risk factors of CSD, suggesting a sensorineural mechanism for the observed olfactory and taste dysfunction. Background and Objectives: The association between chemosensory dysfunction (CSD) and coronavirus disease 2019 (COVID-19) remains unclear. The aim of the present study was to determine the incidence of olfactory and taste dysfunction in asymptomatic and mildly symptomatic patients with COVID-19 and to evaluate the symptoms associated with CSD in patients with COVID-19.Materials and Method: On March 9, 2020, 309 patients with asymptomatic or mildly symptomatic COVID-19 confirmed by real-time polymerase chain reaction (RT-PCR) were admitted to the No. 7 Community Treatment Center in Korea. An internet-based survey about symptomatology was administered to these patients, with responses obtained from 244 (79.0%). Subjects who completed the survey were enrolled in this study and were categorized into either a CSD group or a normal chemosensory group based on the presence or absence of CSD, respectively.Results: General symptoms, including fever, myalgia, and chills, were most common (29.1%), followed by upper respiratory tract infection (URI) symptoms (20.9%), CSD (20.5%), and nasal symptoms (13.5%). In patients with CSD (n=50), 10 (4.1%) reported no other symptoms. After adjustment for age, sex, past medical history, and other symptoms, general symptoms [odds ratio (OR), 3.63; confidence interval (CI), 1.70-7.76] and nasal symptoms (OR, 7.00; CI, 2.61-18.80) were significantly associated with CSD.Conclusion: The incidence of CSD was relatively high (20.5%) in asymptomatic and mildly symptomatic patients with COVID-19. General symptoms were independent risk factors of CSD, suggesting a sensorineural mechanism for the observed olfactory and taste dysfunction.

Age Differences in Pet Sensitization by Pet Ownership

원준연,권재우,홍승노,이우현 대한이비인후과학회 2021 Clinical and Experimental Otorhinolaryngology Vol.14 No.2

Objectives. The association between pet sensitization and pet ownership remains unclear. Therefore, we aimed to elucidate the association between pet sensitization and pet ownership by age. Methods. We retrospectively reviewed 2,883 patients who visited our allergy clinic for nasal symptoms from January 2003 to December 2014, of whom 1,957 patients with data on skin-prick tests and questionnaire responses were included and divided into adults (age >19 years) and children (age ≤19 years). The association between pet sensitization and pet ownership was evaluated in both groups. Results. Among children, dog and cat sensitization showed no associations with dog and cat ownership, respectively. However, among adults, dog sensitization was significantly associated with dog ownership (odds ratio [OR], 3.283; P<0.001), and cat sensitization with cat ownership (OR, 13.732; P<0.001). After adjustment for age, sex, familial history of allergy, sinusitis, diabetes mellitus, other pet ownership, and non-pet sensitization, significant associations remained between dog sensitization and dog ownership (adjusted OR [aOR], 3.881; P<0.001), and between cat sensitization and cat ownership (aOR, 10.804; P<0.001) among adults. Dog ownership did not show any association with allergic rhinitis, asthma, or atopic dermatitis, whereas atopic dermatitis had a significant association with cat ownership in adults (aOR, 4.840; P<0.001). Conclusion. Pet ownership in adulthood increased the risk of pet sensitization. However, pet ownership was not associated with the prevalence of atopic disorders, regardless of age, except for atopic dermatitis and cat ownership in adults.

중심 경로의 제어점을 이용한 가상 대장 내시경에서의 펼친 영상 재구성

원준연(Jun Yeon Won),신병석(Byeong-Seok Shin) 한국컴퓨터그래픽스학회 2004 컴퓨터그래픽스학회논문지 Vol.10 No.1

중소기업 정책자금의 지원방식 만족도에 관한 연구

원준연 한국무역학회 2015 한국무역학회 학술대회 Vol.2015 No.5