Vol. 87, No. 2 (Published on 1st, April. 2025)

CONTENTS

ESSAY

　Y. NAGASAKI…69

SPECIAL EDITION

Hokkaido Block Thematic Session 2024 (Machine Safety in Agricultural Machinery)　　　Editor：H. TAKENAKA

　T. SAITO : General Principles of Risk Assessment and Risk Reduction for Machinery
　　─Points that Designers Need to Know Based on Machinery Safety Standards─…72

　Y. KIKUCHI : Tips for Safe and User-friendly Machine Design from the Operator's Point of View…78

TECHNO-TOPICS

K. SATO, N. HAYASE, S. FUJITA, M. MIYA : Introduction and Prospects for Quasi-Zenith Satellites and Centimeter Level Positioning Augmentation Service (CLAS)…82

PAPERS (Articles)

RESEARCH PAPERS

M. SHIBASAKI, T. SUZUKI, Y. SAITO, N. LI, M. FUKUSHIMA, T. OHMAE, N. NISHIKI, N. KONDO : Evaluation of Blood Cell Effects and Estimation of Retinol Concentration in Whole Blood of Fattening Cattle in the Excitation Emission Matrix…103 　abstracts

M. HORIE, R. KOUCHI, Y. ISHIMINE, T. SHIRAKAWA, M. TANAKA, T. SHIKANAI, E. TAIRA : Development of Sucrose Calibration for Sugarcane Juice Using FT-IR…110 　abstracts

TECHNICAL PAPERS

M. SHIMAZU, E. KURIHARA, N. UMEDA, K. NONAMI, Y. AGAWA : Threshing Performance of a Combine Harvester Equipped with Comb-Shaped Threshing Teeth…118 　abstracts

J. AOKI, K. HAYASHI, T. KOKURYU, E. KIJIMA, S. SANO, Y. WATANABE, K. EGAWA : Development of Remote-Controlled High-Efficiency Mower for Steep Slopes…127 　abstracts

M. HANAGATA, T. TAMASHIRO, K. FURUHASHI, Y. KAIZU, T. HONJO, K. IMOU : Evaluation of Annual Cultivation Schedules via Energy Management Indices in Solar-light Plant Factories…135 　abstracts

SHORT REPORT

I. HARADA, M. TOMITA, M. MATSUMOTO, S. TSUKAMOTO : Study on the Influence of Different Loading Conditions on the Results of Strength Test Simulation for 2-Post Type ROPS Mounted on Small Riding Type Agricultural Tractors…152 　abstracts