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Volume 67 (2005)
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Volume 67, Issue 4
Displaying 1-22 of 22 articles from this issue
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N. NOGUCHI2005 Volume 67 Issue 4 Pages 1-2
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
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[in Japanese]2005 Volume 67 Issue 4 Pages 4-8
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
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[in Japanese]2005 Volume 67 Issue 4 Pages 9-15
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
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[in Japanese]2005 Volume 67 Issue 4 Pages 16-18
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
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[in Japanese]2005 Volume 67 Issue 4 Pages 19-22
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
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[in Japanese]2005 Volume 67 Issue 4 Pages 23-27
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
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[in Japanese]2005 Volume 67 Issue 4 Pages 28-32
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
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[in Japanese]2005 Volume 67 Issue 4 Pages 33-38
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
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[in Japanese]2005 Volume 67 Issue 4 Pages 39-41
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
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Image Analysis for Detection of Fruits EdgeSomchai LIMSIRORATANA, Yoshio IKEDA2005 Volume 67 Issue 4 Pages 73-80
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSDetection of fruits in a natural background is difficult when the colors of the fruits and back grounds, such as the leaves and stems, are similarly greenish. In this research, we tried to analyze the shape information as an alternative and used the papaya fruits (Carica papaya L.) in the orchard as the sample image to be investigated. The shape information could be evaluated from the boundary of the fruits. However, the straightforward application of the boundary detection technique can be sensitive to the edges of every object in the input image. Therefore, filtering method has to be performed to remove the extraneous edges. By using the edge and color information and the Maximum and Minimum filters simultaneously, the papaya boundaries could be detected.View full abstractDownload PDF (6210K) -
Hu JIANG, Akira SASAO, Sakae SHIBUSAWA, Shigeru YAGI, Tsuyoshi OKAYAMA ...2005 Volume 67 Issue 4 Pages 81-89
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSThis paper describes a chain of processing garbage waste in a city area, which is composed of an in-situ preprocessing site, a composting site and a farm site, which are apart from each other. A primary garbage processing device was introduced at an NEC factory with canteens. The preprocessed material moves to the facility of composting on the campus of Tokyo University of Agriculture and Technology. Organic farmers in Fuchu City utilize the composts for cultivation. The investigation focused on the pre-processing site in terms of properties of products after primary processing. As a result, we found that the operator for the primary garbage processing device could eliminate impurities almost perfectly, and the primary process could suppress the stench and decomposition of the kitchen-garbage. Moreover, the primary device could make the kitchen garbage uniform by mixing and fragmenting, and therefore the products were suitable for composting.View full abstractDownload PDF (4014K) -
Measurement of Potassium Content in Sugarcane Juice Using Near Infrared SpectroscopyEizo TAIRA, Masami UENO, Yoshinobu KAWAMITSU, Akiko UCHIMA2005 Volume 67 Issue 4 Pages 90-96
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSPotential of near infrared (NIR) spectroscopy to measure the potassium content in sugarcane juice was investigated in order to produce high quality sugarcane using precisely controlled fertilizer applications. Although there was no absorption due to minerals in the range of near infrared, sucrose content and 14 minerals in juice samples were measured to specify the wavelength used for the potassium calibration equation. Applying MLR (Multiple Linear Regression) to absorbance at each wavelength, a highly correlated wavelength at 1820nm to the potassium content was obtained, which had no correlation to the sucrose content. Calibration equation by PLSR showed higher correlation than that by MLR. The standard error of prediction (SEP) was 161.8 ppm and Bias was -41.7 ppm as validation results. It could be concluded that NIR spectroscopy was useful to determine the potassium content in sugarcane juice.View full abstractDownload PDF (1026K) -
Studies on Practical Use of Measurement System for Potassium Content in Sugarcane JuiceEizo TAIRA, Masami UENO, Yoshinobu KAWAMITSU2005 Volume 67 Issue 4 Pages 97-104
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSIn part 1, a NIR calibration equation for measuring the potassium content in sugarcane juice was developed using an independent wavelength for the sucrose content as a primary one, which showed enough accuracy. In this paper, the calibration equation was checked to determine whether it was effective for the practical use and to development of an information system to assist the production of high quality sugarcane. The investigation had been carried out in Minami-Daito Island from 2000/01 to 02/03 harvest seasons using a similar NIR instrument in the payment system. NIR spectra were measured from all juice samples used for the payment system from all sugarcane fields on the island, and then the potassium contents were calculated by the calibration equation. It was confirmed that the potassium and the sugar content could be measured simultaneously and could be incorporated into the payment system. It would be a powerful tool to assist the precise application for potassium fertilizer to each field in order to produce high quality sugarcane.View full abstractDownload PDF (1115K) -
Tuan Quoc NGUYEN, Tung Hoang LY, Kiyokazu GOTO2005 Volume 67 Issue 4 Pages 105-112
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSRough rice (cv. Hatsushimo) was stored at four moisture contents (MCs) of 11.1, 12.8, 14.7, 17.6% and three temperatures of 4, 20 and 35°C for up to 17 months. During storage, the overall pasting properties of the rice flour changed depending on storage conditions. For the rice stored at 4°C, the peak viscosity was almost constant during the first storage period after which it increased slightly, but setback viscosity and final viscosity remained constant. Increases in the peak viscosity, setback viscosity and final viscosity were observed in the rice stored at 20°C. The rapid changes in these parameters were observed particularly in the rice stored at 35°C. The MC also affected the rate of change. The pasting temperature did not change in the rice stored at 4 and 20°C for all MC levels, but started to increase rapidly after 3 to 9 months at 35°C. A statistical analysis showed a complicated influence of storage period, temperature, MC and their interaction to the pasting properties of long-term stored rice.View full abstractDownload PDF (1057K) -
Quality Characteristics and Storage Properties of Conventional Milled Rice and Rinse-Free Rice Processed by Different MethodsMio YOKOE, Shuso KAWAMURA, Jun-ichi HIMOTO, Kazuhiko ITOH2005 Volume 67 Issue 4 Pages 113-120
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSWe investigated the quality characteristics and storage properties of two kinds of rinse-free rice processed by two different methods and those of conventional milled rice. Rinse-free rice was found to be statistically different from conventional milled rice in various quality assessments. The eating quality of cooked rinse-free rice without rinsing was the same as that of cooked conventional milled rice with rinsing. Free fat acidity of each rice sample increased during the 4-month storage period. However, the magnitude of increase in free fat acidity levels of rinse-free rice was only half that of conventional milled rice. The results indicate that storage properties of rinse-free rice are better than those of conventional milled rice. Sensory tests performed after 4 months of storage at 25°C showed that the eating quality of rinse-free rice with rinsing was better than that of rinse-free rice without rinsing.View full abstractDownload PDF (4702K) -
Quality Characteristics and Storage Properties of Rinse-Free Rice with High Milling YieldMio YOKOE, Shuso KAWAMURA, Jun-ichi HIMOTO, Kazuhiko ITOH2005 Volume 67 Issue 4 Pages 121-125
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSWe processed conventional milled rice, rinse-free rice and rinse-free rice with the same milling yield as that of conventional milled rice (i.e., rinse-free rice with high milling yield) in a large-scale milling factory, and we investigated their quality characteristics. Quality characteristics of rinse-free rice were partly due to decreasing milling yield, and mainly due to cleaning the surfaces of conventional milled rice grains and removing remaining bran. And some of the quality characteristics of rinse-free rice were due to both of decreasing milling yield, and cleaning the surfaces of milled rice grains and removing remaining bran. Rinse-free rice with high milling yield had quality characteristics similar to those of rinse-free rice, such as high degree of whiteness and low turbidity of rinsed water. However, rinse-free treatment did not remove embryos, and this resulted in poor appearance of cooked rinse-free rice with high milling yield and poor eating quality.View full abstractDownload PDF (806K) -
Distinction between Sugar Beet and Weeds Using Video ImageMasaki TERAWAKI, Takashi KATAOKA, Hiroshi OKAMOTO, Shun-ichi HATA2005 Volume 67 Issue 4 Pages 126-131
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSThe sugar beets and weeds were detected and distinguished using the video images taken by a CCD video camera mounted on a tractor. The aim was automatically thinning and weeding out directly sowed sugar beets. An accurate distinction based only on the analysis of the shape characteristics was difficult. The reason for this was the difference in the growing size of the sugar beets which was caused by the beets being cultivated by direct sowing. Therefore, the color information, Q of the YIQ color system, was added to the analysis of the shape characteristics. As the result, correct distinction rates for the sugar beets and weeds were 89.7% and 91.0%, respectively. The processing time using the low spec CPU (Celeron, 400MHz) was 3Hz. This performance was sufficient for the real-time works in the field.View full abstractDownload PDF (5804K) -
Detecting Method and Automatic ControlShinori TSUCHIYA, Tatsuya KONISHI, Jun KUBOTA2005 Volume 67 Issue 4 Pages 132-139
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSThe objective of this research is to control the quantity of rice-transplanter seedlings. We developed a hill space detector, a seedling detector, and a rice transplanter with an automatic control system to adjust the quantity of seedlings. Field tests have confirmed that it can control the quantity of seedlings to the number of seedlings for transplanting.View full abstractDownload PDF (2793K) -
Making First and Second Prototypes and Simulation Tests of MilkingAkira HIRATA, Hiroshi GOTOH, Yoshitaka IBARAKI, Akio WAKUI, Toshiyuki ...2005 Volume 67 Issue 4 Pages 140-148
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSThe first prototype was made in accordance with the design policy of this system described in the second report. This prototype was tested while performing automatic carrying more than 3, 000 times, and experienced a broken front axel, burned electric motor and a malfunction of the branch-point diverters. These problems were resolved in the second prototype and the pair milk tap coupler was changed to the one-motion type. Check functions were added for milk tap coupling and the automatic removal of the milking unit. Also, milking simulation tests were conducted at practical work routine intervals in this system. The vacuum drop in the 2-inch milking line didn't exceed 2kPa under conditions recommended in ISO5707.View full abstractDownload PDF (4011K) -
Evaluation of the Prototype System in Private FarmsAkira HIRATA, Hiroshi GOTOH, Yoshitaka IBARAKI, Akio WAKUI, Toshiyuki ...2005 Volume 67 Issue 4 Pages 149-156
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSA second prototype of an automatic system for carring milking units was installed in a face-out stall barn on a dairy farm with fifty cows. Milking performance and problems of a real milking routine were studied. As a result, we found the standard performance to be one man with eight milking units milking fifty cows per man-hour, as we predicted in the first report of this system. The third prototype was modified from the second prototype, and installed on four dairy farms. In these farms, cows and workers were allowed ten days to four weeks for familiarization with this system. Working time and working load were reduced, so workers evaluated this system highly.View full abstractDownload PDF (6713K) -
Distribution of The Palatability Evaluation Values and Physicochemical Properties from 1994 to 1999Eiji MAKINO, Takao SUGIYAMA, Tomohiko ICHIKAWA, Ei SEKI2005 Volume 67 Issue 4 Pages 157-165
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSWe studied the palatability of rice in Japan in order to develop new machines and instruments for high-quality rice products. The sensory evaluation of cooked rice and the measurement of its physicochemical properties were conducted on 657 samples of rice collected from 1994 to 1999. In this report, we clarified the quality of rice by using these data. The palatability evaluation values of each sample were similar to those of Nipponbare. Even within the same variety, the palatability evaluation values and physicochemical properties were very widely distributed.View full abstractDownload PDF (1312K) -
Rice Quality Related to Palatability of Cooked RiceEiji MAKINO, Takao SUGIYAMA, Tomohiko ICHIKAWA, Ei SEKI2005 Volume 67 Issue 4 Pages 166-172
Published: July 01, 2005
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSWe studied the palatability of rice in Japan in order to develop new machines and instruments for high-quality rice products. In this report, we analyzed the correlation of palatability evaluation values and physicochemical properties of 657 rice samples collected from 1994 to 1999. The relation among palatability evaluation values with protein content, amylose content and external quality is also presented, and various factors for producing high-quality rice are clarified.View full abstractDownload PDF (794K)
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