• Horticultural Science & Technology
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• v.19 no.3
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• pp.358-361
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• 2001

Factors affecting fruit conformation of 'Fuji' apples (Malus domestica Borkh.) were investigated through correlation study of fruit weight, seed numbers, and seed weight in relation to fruit conformation indices. Apples were harvested from two orchards in 'Andong' and 'Youngyang' areas at commercial maturity and grouped by fruit weight. Average number of seeds and seed weight were 8.9 and 0.64 g in 'Andong' orchard, while 6.3 and 0.47 g in 'Youngyang' orchard, respectively. When pooled data from the both orchards were analyzed, correlation of fruit weight with seed weight was significantly positive, whereas that with seed number was not significant. Fruit shape index determined by length/diameter ratio was positively correlated with fruit weight, while relationship of the shape index with seed number or with seed weight was not significant. Asymmetry index tended to be low in apples from the 'Andong' orchard in which higher seed numbers and seed weight were observed. The asymmetry index showed highly negative correlations with seed numbers and with seed weight.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.9
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• pp.4142-4148
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• 2013

Because of effective fruit growing and management in the slope land, the use of orchard vehicle with lifting utilities has been increased. For this reason the study on the stability of that vehicle for worker's safety is needed. This study is investigated on the stability estimation of orchard vehicle with four wheels and dual rectangular-type lifting utilities which can be moved on the dirt sloping load. Through the multi-body dynamics analysis on the vehicle mechanism, overturning angles of 19.2 and $34.6^{\circ}$ in the right-left and front-rear direction can be calculated. It is determined tractive resistances and required powers of the wheels. And through the finite element analysis on the frame of lifting utility its maximum von-Mises stress is 146 MPa and it is structural stable. Therefore it is known that the orchard vehicle with wheels and lifting utilities has static and dynamic stability.

• The Bimonthly Magazine for Agrochemicals and Plant Protection
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• v.4 no.10
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• pp.75-83
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• 1983

• The Bimonthly Magazine for Agrochemicals and Plant Protection
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• v.10 no.6 s.93
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• pp.96-103
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• 1989

• Agrochemical news magazine
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• v.16 no.3 s.126
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• pp.22-26
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• 1995

• The Bimonthly Magazine for Agrochemicals and Plant Protection
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• v.8 no.6
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• pp.104-110
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• 1987

• The Bimonthly Magazine for Agrochemicals and Plant Protection
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• v.6 no.1
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• pp.88-94
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• 1985

매년 겪는 일이지만 언제나 과일을 수확하고 나면 후회와 반성으로 내년에는 좀더 수지맞는 농사를 지어보겠다고 결심을 한다. 그러나 막상 농사철에 접어들고 보면 여러 가지 여건이 맞지를 않아 생각대로 이루어지지 못하는 경우가 많다. ''84년의 과수 작황은 평년작이라고 하지만 5$\~$6 유과기(幼果期)의 가뭄으로 과실이 작았고 지역적으로는 개화기의 이상기온으로 착과가 좋지않아 ''83년 보다는 10$\%$ 정도 감수를 나타냈다.

• The Bimonthly Magazine for Agrochemicals and Plant Protection
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• v.1 no.6
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• pp.54-60
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• 1980

7월과 8월의 이상기온으로 복숭아심식나방(桃姬心　忠)이 예년보다 한달이나 늦게 발생 전국 과수원에 피해를 주고 있는 것으로 나타났다. 예년같으면 8월 중에 나타나던 2 화기가 올해는 9월에 만연될 것으로 보여 과수농가에서는 예방과 방제에 각별히 유의해야 될 것 같다.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.10 no.3
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• pp.225-231
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• 2017

This study was carried out for the production of aerial work machinery in high place in the orchard. In the case of orchards, there are many unpaved roads and sloping grounds to solve the problem of overturning or safety problems when working in a orchard. For more stable operation, an automatic leveling system was designed. During the structural analysis, the horizontal sensor was installed in addition to the standard that we wanted. Based on the INVENTOR, the structural analysis through 3D modeling showed that the maximum tilt of the worker was 116.49Mpa on the left and 118.26Mpa on the right.

• The Journal of the Convergence on Culture Technology
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• v.4 no.4
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• pp.393-399
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• 2018

The development of unmanned AI continues, and the development of AI unmanned is aimed at more efficiently, accurately, and speedily the work that has been resolved by manpower such as industry, welfare, and manpower. AI unmanned technology is evolving in various places, and it is time to switch to unmanned systems from many industries and factories. We take this into consideration, and use the Deep Learning technology, which is one of the core technologies of artificial intelligence (AI), not the manpower but the fruits that pour the rails at once in a large orchard. We want to study the unmanned fruit sorting machine that can be operated under manager's supervision without dividing the fruit by type and grade and dividing by country of origin and grade. This unmanned automated classification system aims to reduce the labor cost by minimizing the manpower and to improve the