Details of a Researcher - HIYOSHI Kenji

Papers - HIYOSHI Kenji

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Basic Study on Rice Transplanter in the Mulching Cultivation System for Early Season Culture Rice (Part 1) : Development of Knife Type Mulch Slit Cutting Mechanism

NAGATA Masateru, HIYOSHI Kenji, UMEZAKI Teruhisa, WANG Hongyong, OKADA Yoshiichi

Journal of JSAM 60 ( 1 ) 19 - 26 1998.1

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japanese Society of Agricultural Machinery and Food Engineers

This paper reports the study to speed up the growth of seedlings and to shorten heading and maturity duration of early season culture rice by introducing mulching cultivation using polyethylene film, and the study on the mechanism enabling the rice transplanter to do film laying and transplanting simultaneously for this cultivation. The knife type mulch slit cutting mechanism, linked with the rotary type transplanting mechanism, was developed to make slits on the film. The motion of the reciprocating and oscillating knife was analyzed using video images. The knife cuts a slit on the film just before transplanting the seedlings through the slit. The analysis confirmed that this cutting mechanism, which could be made a part of rice transplanter, can work well with film laying and transplanting.

DOI： 10.11357/jsam1937.60.19

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Root system developing of early season culture rice by mulching cultivation using polyethylene film

HIY0SHI Kenji, UMEZAKI Teruhisa, NAGATA Masateru, Bemardo D.TADE0, SHIM0DA Takeshi

Report of the Kyushu Branch of the Crop Science Society of Japan ( 63 ) 25 - 27 1997.5

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Crop Science Society of Japan

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早期水稲のポリエチレンフィルムマルチ栽培による根系の発達経過 Reviewed

日吉健二，梅崎輝尚，永田雅輝，タデオベルナルド D.，下田　傑

日本作物学会九州支部会報 ( 63 ) 25 - 27 1997.5

Language：Japanese Publishing type：Research paper (scientific journal)

Mulching Cultivation System by Using Polyethylene Film for Early-Season Culture Rice (Part 2) : Thermal Image Analisys of Paddy Field by Thermographic System

Nagata Masateru, Hiyoshi Kenji, Okada Yoshiichi, Umezaki Teruhisa, Tadeo Bernardo D., Shimoda Takeshi

Bulletin of the Faculty of Agriculture, Miyazaki University 43 ( 2 ) 129 - 136 1997.2

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Miyazaki University

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早期水稲のポリエチレンフィルムマルチ栽培システムに関する研究早期水稲のポリエチレンフィルムマルチ栽培システムに関する研究（第2報）サーモグラフィ装置による水田の熱画像解析 Reviewed

永田雅輝，日吉健二，岡田芳一，梅崎輝尚，タデオベルナルド D.，下田　傑

宮崎大学農学部研究報告 43 ( 2 ) 129 - 136 1997.2

Language：Japanese Publishing type：Research paper (bulletin of university, research institution)

イチゴの自動選別システムに関する研究（第3報）画像処理による自動選別システムの開発 Reviewed

永田雅輝，木下　統，浅野克典，曹　其新，日吉健二

農業機械学会誌 59 ( 1 ) 43 - 48 1997.1

Language：Japanese Publishing type：Research paper (scientific journal)

Studies on Automatic Sorting System for Strawberry (Part 3) : Development of Sorting System Using Image Processing

NAGATA Masateru, KINOSHITA Osamu, ASANO Katsunori, CAO Qixin, HIYOSHI Kenji

Journal of JSAM 59 ( 1 ) 43 - 48 1997.1

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japanese Society of Agricultural Machinery and Food Engineers

The possibility of classifying strawberry by shape was confirmed by previous experiments. This particular study tested the automatic sorting system where strawberries were manually placed on a turntable which conveys strawberries towards the distinction unit to classify according to their shapes and sizes. The judging time and distinction accuracy were found to be acceptable and effective. However, the carrying time was longer than by manual sorting, and further study to speed up the carrying time is necessary.

DOI： 10.11357/jsam1937.59.43

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早期水稲におけるポリエチレンマルチ栽培システムの研究:ナイフ式フィルム開孔機構による植付穴の形成

永田雅輝, 日吉健二, 岡田芳一, タデオベルナルドD., 王紅永

農業機械学会誌 59 ( 0 ) 87 - 88 1997

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japanese Society of Agricultural Machinery and Food Engineers

DOI： 10.11357/jsam1937.59.Supplement_87

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イチゴの自動選別システムに関する研究（第2報）画像処理による選別のための果形判別法 Reviewed

永田雅輝，木下　統，浅野克典，曹　其新，日吉健二

農業機械学会誌 58 ( 6 ) 61 - 67 1996.11

Language：Japanese Publishing type：Research paper (scientific journal)

Studies on Automatic Sorting System for Strawberry (Part 2) : Distinction Method for Strawberry Sorting Reviewed

NAGATA Masateru, KINOSHITA Osamu, ASANO Katsunori, CAO Qixin, HIYOSHI Kenji

Journal of JSAM 58 ( 6 ) 61 - 67 1996.11

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japanese Society of Agricultural Machinery and Food Engineers

After proposing a geometric features for strawberry shape distinction and their effects verified, four judging methods were tested. As a result, three methods which use the center of gravity of projected area distinguished the shape more accurately, but required longer time for judging. Another method, which is considered useful and acceptable for its short judging time, has a distinction accuracy inferior to the other three and must be improved further.

DOI： 10.11357/jsam1937.58.6_61

CiNii Research

Mechanism of Mulch Film Cutter on Transplanting System for Mulching Cultivation of Early Season Culture Rice in Japan

Hiyoshi, K., Nagata, M., Wang, H., Umezaki, T.

1996 International Conference on Agricultural Machinery Engineering Proceedings 3 1996.11

Language：English Publishing type：Research paper (international conference proceedings)

早期水稲のマルチ栽培システムにおける植付穴の形成について Reviewed

永田雅輝，日吉健二，王　紅永，タデオD.ベルナルド，岡田芳一，田中俊一郎

農業機械学会九州支部誌 ( 45 ) 17 - 21 1996.10

Language：Japanese Publishing type：Research paper (scientific journal)

イチゴの自動選別システムに関する研究（第1報）画像処理装置による果形の幾何学的特徴の抽出 Reviewed

永田雅輝，木下　統，浅野克典，曹　其新，日吉健二

農業機械学会誌 58 ( 5 ) 57 - 63 1996.9

Language：Japanese Publishing type：Research paper (scientific journal)

Studies on Automatic Sorting System for Strawberry (Part 1) : Extraction of Geometric Feature Using Image Processing

NAGATA Masateru, KINOSHITA Osamu, ASANO Katsunori, CAO Qixin, HIYOSHI Kenji

Journal of JSAM 58 ( 5 ) 57 - 63 1996.9

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japanese Society of Agricultural Machinery and Food Engineers

In strawberry production, sorting spends much time and labor, the development of an automatic system for sorting is envisioned. It is the objective of this study to develop an automatic sorting system for strawberry to optimize output and minimize labor costs. In this system, strawberry shape is distinguished by image processing through a computer. Seven geometric features which can express a strawberry shape were extracted and tried and their effects for effective shape distinction verified. The result showed that strawberry shape distinction was possible.

DOI： 10.11357/jsam1937.58.5_57

CiNii Research

Effects to the growth of root system of early-season culture rice by mulching cultivation polyethylene film

HIY0SHI Kenji, UMEZAKI Teruhisa, NAGATA Masateru

Report of the Kyushu Branch of the Crop Science Society of Japan ( 62 ) 39 - 40 1996.5

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Crop Science Society of Japan

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早期水稲におけるポリエチレンフィルムマルチが根系の発達に及ぼす影響 Reviewed

日吉健二，梅崎輝尚，永田雅輝

日本作物学会九州支部会報 ( 62 ) 39 - 40 1996.5

Language：Japanese Publishing type：Research paper (scientific journal)

把持されたイチゴの形状判定について