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Volume 16 (1985 - 198･･･
- Issue 3 Pages 5-
- Issue 2 Pages 5-
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Volume 16, Issue 3
Displaying 1-6 of 6 articles from this issue
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On the Generation by Moisture Contents of Rough RiceTomoyuki SENO1986 Volume 16 Issue 3 Pages 5-10
Published: March 30, 1986
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSTo clarify in detail for the results obtained in previous report, the investigation were performed on the properties of grain dust generation by the condition of moisture contents of rough rice and husk.
By use of the measuring device built as a trial for generation and separation of the grain dust, good results were obtained.
The quantity of generated grain dust which early step of separate operation, was gained 50-80% of final step of operation.
It was become clear that the higher moisture contents of rough rice, the more quantity of dust was generated, and the quantity of dust generation of high moisture contents rough rice about 25% was 2-3 times as much as the dried rough rice under 5% moisture contents.
The relation of moisture contents and properties of dust generation were proved between brown rice, husk, and trichome (grain dust).
With consideration of properties of particle-size of grain dust, it was discussed on the mechanism of generation of dust, and it was explained on the difference and contradiction from generally recognized on the characteristics of grain dust generation.View full abstractDownload PDF (775K) -
Radiant-interchange Configuration Factors for Swine to Inside Roof Surfaces of Gable Roofed Open-type Livestock BarnsMasayoshi MINOWA, Tomoharu YAMAGUCHI, Yoshiyasu AIHARA1986 Volume 16 Issue 3 Pages 11-30
Published: March 30, 1986
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSIn order to evaluate the effects of different dimensional factors on radiant heat coming downward on to an infinitesimal horizontal surface concerning the radiant heat load of a real swine, the authors determined dimensions of cylinders which gave the same values as radiant-interchange configuration factors for swine to inside roof surfaces of gable roofed barns, and compared configuration factors for cylinders with ones for infinitesimal horizontal surfaces.
Radiant-interchange configuration factors for infinitesimal horizontal surfaces to inside roof surfaces were about 2.8-3.0 times as large as those for cylinders. And configuration factors for infinitesimal horizontal surfaces to the sky were about 0.6-0.8 times as large as those for cylinders.View full abstractDownload PDF (2301K) -
Shigeki KATSURA1986 Volume 16 Issue 3 Pages 31-40
Published: March 30, 1986
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSPerpendicular frictional forces between silage and steel silo were measured using silages and a model of a steel silo. Silages used in the experiments were made of true grasses and dent corn. The percentages of water content of the silages were adjusted to 70, 55 and 40%.
Characteristics of the frictional forces of each silages became clear. The magnitude of the frictional forces of grass silages were apparently different from those of the dent corn silages. Total frictional force acting on the actual silo was estimated based on the experimantal results and compared with the value obtained from the current design standard. It has been clarified that when dent corn silage is prepared in the silo, the frictional force estimated from the design standard is rather over-estimated compared with the experimental result.View full abstractDownload PDF (1149K) -
Shinji HOSHIBA, Ryoji SAMESHIMA, Takamitsu SATO, Akio SONE, Masahiro O ...1986 Volume 16 Issue 3 Pages 41-47
Published: March 30, 1986
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSMeasurements of concentration of bacterial aerosols using a filtration method were made in calf hutches as well as in a dairy barn, a heifer barn, and a barn housing cattle of all ages. The concentration of bacterial aerosols inside calf hutches was 59 BCFP/10l in summer and 22 BCFP/10l in winter, which was markedly lower than that in the other barns. The differences in the concentration between calf hutches and the other barns were more obvious in winter than in summer. The concentration of bacterial aerosols around and between hutches was very low and nearly equal to that of the outside environment. These results indicate that calf hutches provide a higher degree of air purity than do the other barns tested and that calves in calf hutches can be raised in nearly isolated conditions with respect to air-borne infection.View full abstractDownload PDF (2278K) -
On the Properties of Pressure Drop and Efficiency of Dust CollectionTomoyuki SENO, Atusi OHGA1986 Volume 16 Issue 3 Pages 48-59
Published: March 30, 1986
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSThe dust collection equipment has a significant meaning to improve for the dust environment in and out of the facility area.
A new system of dust collection was developed, which collects the dust by bubble and foam (BDC).
It was obtained that the collection efficiency of BDC to the rough rice dust was over 99.9%.
To evaluate the performance of the dust collection device, a new parameter was taken, i. e. the ratio of the mean diameter of emitted dust (E) from the device to the mean diameter of original dust (O), which represented the ratio of E/O.
It was proved that the mechanism of BDC was major effect by the collision of inertia of the dust particles to the liquid surface.View full abstractDownload PDF (1413K) -
Kohki SHIO, Takemi MACHIDA1986 Volume 16 Issue 3 Pages 60-69
Published: March 30, 1986
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSIn this paper, the authors developed the agricualtural system programs by the simplified language, as one of the methods for promoting and simplifing the developement of the agricultural programs, and also explained the outline of the system and the method for composing the programs as well as the some examples.
The constitution of this system is shown in Fig. 1, and it contains six system programs and three files. One can make the programs by the use of the simplified language wich is called ADAM language as the manner of a table, and can draw up easily the high leveled and complicated programs including the data management.View full abstractDownload PDF (891K)
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