• Journal of Bio-Environment Control
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• v.18 no.3
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• pp.258-265
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• 2009

This research was conducted to compare drymatter production and yield pattern between commercial glasshouse (G) and plastic greenhouse (PG) in Korea. In both greenhouses sawing and plating of sweet pepper was 28 August and 27 September, 2007. Destructive measurement and yield of sweet pepper, cv. 'Derby', was obtained from January to May, 2008. Averaged light transmissivity over 20 times observed 65% in G and 51 % in PG. The averaged daily radiation sum of greenhouses during whole growing period was $9.03MJ/m^2/day$ for G and $7.37MJ/m^2/day$ for PG Leaf area index (LAI) in G crop was 36% higher than the crop in PG at the end of experiment (247days after planting: DAP), whereas there was no significantly difference for 212 DAP in both greenhouses. Total dry matter production was $1759.9g{\cdot}m^{-2}$ for G and $1308.5g{\cdot}m^{-2}$ for PG Fruit production observed $14.1kg{\cdot}m^{-2}$ in G and $7.8kg{\cdot}m^{-2}$ in PG. There was slightly difference measurement of dry matter distribution of generative or vegetative parts to total dry matter between G and PG.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1998.10a
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• pp.142-145
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• 1998

근권용량을 2, 4, 6, 8 및 10$\ell$로 제한하여 펄라이트를 채워 오이를 재배한 결과 근권용적이 증가할수록 초장, 경경, 엽수 및 엽면적이 증가하였고, 과실수와 과실중량에서는 근권용적이 큰 8$\ell$와 10$\ell$의 처리구에서 가장 양호하였으며 기형과 발생률도 낮은 경향이었다. 근권용적 6$\ell$를 기준으로 미만의 처리구에 비해 이상의 처리구에서 경으로의 건물분배가 줄어들고 엽으로의 건물분배가 많은 것을 볼 수 있었다.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.30 no.1
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• pp.63-68
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• 1985

This study was conducted to investigate the dry matter production and distribution ratio of dry matter produced for each of 5 botanical types (Virginia-Small Seed, Virginia-Large Seed, Spanish, Valencia, Shinpung) of Peanut (Arachis hypogaea L.) in Peanut culture limiting region. The total dry weight increased in order of Virginia-Large seed, Virginia- Small Seed, Shinpung, Spanish, Valencia type. The maximum Crop growth rates (Cmax) were Virginia-Small seed 18.22-23.41 g/㎡/day, Virginia-Large seed 19.61-20.03 g/㎡/day, Shinpung 16.33-19.77 g/㎡/day, Spanish 13.86-16.28 g/㎡/day, Valencia 13.97-16.25g/㎡/day, respectively. LAI showed the high value at vinyl-mulching than non-mulching. In the early filling stage, distribution ratio of dry matter produced showed the highest at the shinpung type than the other types.

• Horticultural Science & Technology
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• v.31 no.5
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• pp.565-572
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• 2013

The objective of this study was to describe and analyze the effect of high pressure sodium lamp lighting (HPS) on dynamics of growth and dry matter partitioning, and light use efficiency of sweet pepper crop grown over winter season. Young sweet pepper seedlings were planted at 3.75 plants per $m^2$ on September 29, 2010 and treated with HPS for 16 hours from December 14, 2010 until March 18, 2011. The number of leaves per plant were significantly increased with HPS, whereas the number of internodes and leaf area were less affected. HPS reduced the plant height with higher number of fruits per stem compared to those of without HPS lighting (CON). There were large differences in total dry mass production, stem and fruit dry mass between HPS and CON and those with HPS increased by 67.8%, 28.5%, and 97.1% compared to CON, respectively. Each organs of dry mass partitioning was calculated by leaf, stem or fruit growth rate divided by total plant growth rate. Dynamics of dry mass partitioning to leaf and stem between HPC and CON was measured in range of 45-47% at beginning of growth phase and drastically decreased after starting fruit growth in both treatments. Dry matter partitioning to vegetative organs was 4% higher compared to the plant grown under HPS lighting. Averaged dry matter partitioning to fruit with HPS, however, was largely increased by 14.2% compared to CON. Dynamics of the plant growth were well described by expolinear growth equation with three parameters of maximum relative growth rate, absolute growth rate and lost time to reach linear phase. The maximum growth rate of leaf, stem and fruit with HPS was increased by 18.6%, 74.7%, and 143.5% compared to CON. There was a linear relationship between intercepted light integral and vegetative organs (leaf and stem), fruit or total dry mass production. Light use efficiency (LUE, $g{\cdot}MJ^{-1}$) of total dry mass was $4.90g{\cdot}MJ^{-1}$ for HPS and $3.84g{\cdot}MJ^{-1}$ for CON, LUE of vegetative organs was $1.56g{\cdot}MJ^{-1}$ for HPS and $1.61g{\cdot}MJ^{-1}$ for CON and LUE of fruit dry mass was $3.34g{\cdot}MJ^{-1}$ for HPS and $2.23g{\cdot}MJ^{-1}$ for CON. The difference in LUE of total dry mass between treatments, therefore, occurred mainly from the different in LUE of fruit dry mass.

• Horticultural Science & Technology
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• v.31 no.5
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• pp.552-557
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• 2013

This study was carried out to investigate the different DIF (day/night temperature differential) treatments on early growth of sweet pepper plants (Capsicum annuum L.) after planting. The DIF treatments were thus as follows. DIF levels are DIF-6 ($20-26^{\circ}C$) and DIF 0 ($23^{\circ}C$), DIF 3 ($24.5-21.5^{\circ}C$) and DIF 6 ($26-20^{\circ}C$). The DIF 3 and DIF 6 treatments significantly increased plant height of the sweet pepper plants during ten weeks after planting compared to DIF-6 and DIF 0. Leaf area per plant of DIF 3 treatment constantly increased and the level was greatest leaf area at ten weeks after planting. Fresh weight per plant treated with DIF-6 was lower and was reduced 74-77% range compared to other treatments. DIF 0 and DIF 3 treatments significantly affected dry weight and percentage of dry matter compared to DIF-6 and DIF 6. Especially DIF 6 treatment significantly decreased from eight weeks after planting. Percentage of dry matter of the leaf treated with DIF 0 and DIF 3 consistently increased from six weeks after planting, however, DIF-6 and DIF 6 treatments dramatically decreased from eight weeks after planting. High levels of DIF management cause growth retardant on early growth of sweet pepper plants, especially when night temperature is higher than day temperature, plants are indicated to be greater growth retardant.

• Journal of the Earthquake Engineering Society of Korea
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• v.8 no.1
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• pp.39-58
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• 2004

It is very important that predict the inelastic seismic behavior exactly for seismic performance evaluation of a building in the performance based seismic design. Evaluation method of seismic performance based on the pushover analysis reflected in PBSE was developed by some researchers. For the evaluation of inelastic global and local seismic responses by pushover analysis exactly. lateral load distribution should be adjusted and reflected the dynamic characteristics of structural system and various seismic ground motions. And performance point should be determined based on the evaluation of reasonable deformation capacity of a building more exactly. An effective method based on the improved the adaptive lateral load distribution and the equivalent responses of a multistory building is proposed in this study to efficiently estimate the accurate inelastic seismic responses. The proposed method can be used to evaluate the seismic performance for the global inelastic behavior of a building and to accurately estimate its local inelastic seismic responses. In order to demonstrate the accuracy and validity of this method, inelastic seismic responses estimated by the proposed method are compared with those obtained from other analytical methods.

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.07a
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• pp.301-302
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• 2013

본 논문에서 제안하는 시스템은 특정 지역 내에 공청방송시스템과 인터넷 망이 설치되어 있다는 가정 하에서 콘텐츠 송출 시스템과 콘텐츠 분배기 및 TV 제어기로 구성된다. 이 시스템의 목적은 재난경보방송을 위한 긴급방송 콘텐츠를 송출하여 이를 TV를 통해 건물 내에 있는 사람들이 강제적으로 시청하게 함으로써 재난정보를 알리는 것이다. 그 지역 내의 일반적인 인프라와 경제적인 측면을 고려하여 콘텐츠 송출시스템과 콘텐츠 분배기는 LAN에 연결되며 콘텐츠 분배기와 TV 제어기는 RF로 연결되도록 구성하였으며, TV 제어기는 IR로 TV를 제어한다. 제안하는 시스템은 재난경보방송 외에도 안내정보 등을 공유하려는 목적으로도 다양하게 활용될 수 있다.

• Journal of Bio-Environment Control
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• v.8 no.4
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• pp.265-274
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• 1999

This experiment was carried out to investigate the effect of container size and substrate volume on the growth and fruit yield of hydroponically grown cucumber(Cucumis sativus L.) plants. Seeds were sown in plug tray filled with coir dust on Feb. 13, 1998. Seedlings with 5 to 6 true leaves were transplanted in $2{\ell},\;4{\ell},\;6{\ell},\;8{\ell}\;and\;10{\ell}$ plastic pots filled with perlite. Cucumber fruits were harvested with 1 to 2 days interval, and fresh weight, number of normal and malformed fruit were recorded. Plant height, stem diameter, number of leaves and leaf area were highly depended on the container size. Total fresh weight and the number of fruit were increased with increasing container size. NAR(net assimilation rate) and CGR(crop growth rate) increased also with increasing the container size. Optimum container size for hydroponically grown cucumber plant using perlite was recommended as $8{\ell}$ per plant.

• Proceedings of the Korean Society of Crop Science Conference
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• 2000.11a
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• pp.137-138
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• 2000

• Environmental and Resource Economics Review
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• v.31 no.4
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• pp.733-753
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• 2022

Korean government established the Nationally Determined Contribution (NDC) in 2015. After revising in 2019, the government updated an enhanced target at the end of last year. When the NDC is addressed, the emission targets of each sector, such as power generation, industry, and buildings, are also set. This paper analyzes the emission target of each sector by applying a claims problem or bankruptcy problem developed from cooperative game theory. The five allocation rules from a claims problem are introduced and the properties of each rule are considered axiomatically. This study applies the five rules on allocating carbon emission by sector under the NDC target and compares the results with the announced government target. For the power generation sector, the government target is set lower than the emissions allocated by the five rules. On the other hand, the government target for the industry sector is higher than the results of the five rules. In other sectors, the government's targets are similar to the results of the rule that allocates emissions in proportion to each claim.