Today, Opto-mechatronics parts have become highly functionalised and downsized. As such, the polishing method, which is employed in the last stage of machining process, has grown its significance. The present investigation dealt with mica, being newly used as abrasive. The abrasive was used as mica slurry and a granulated mica polishing disc. By polishing the silicon wafer of 4-inches in diameter with this slurry, the following was found : (1) When using the mica slurry (LC10 and NCA10), the surface roughness of the silicon wafer became a mirror surface of less than 5 nmRa in 30-minutes polishing time. (2) The surface roughness, when using the mica polishing disc, became 5, nmRa, which was the same degree as the slurry of the commercial item did.

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There are many applications where it is necessary to estimate accurately the amplitude and phase of signals when the information regarding the frequencies is obtained in advance. Recently, a new method to estimate Fourier coefficients has been proposed. In the method, Fourier coefficients are adaptive parameters. It used not gradient signals but averaged gradient signals and has almost the same acquisition time as the conventional LMS algorithm with more accurate estimation. In this article, more accurate performance analysis of the method than the previous one and convergence condition on a step size parameter are presented.

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Protein secondary structure prediction of soybean glycinin, coded by soybean gene consisting of G1, G2, G3, G4 and G5 was performed by using of Chou-Fasman method. The respective location of predicted secondary structure regions was similar among intermediary subunits coded by G1, G2 and G3, and between G4 and B5, respectively. Secondary structure along primary structure at each disulphide residue between acidic and basic subunits indicated characteristics that its residue in acidic subunit located on β-turn region following β-structure regions constituted of 15 amino acids, and the counterpart in basic subunit did on β-structure regions constituted of 5 amino acids. Homology analysis of each subunit indicated that the amino acid sequence was conserved in N-terminal region of acidic subunit, and basic subunit.

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Laser Raman spectra of soybean glycinin and β-conglycinin in neutral solution are presented. In the native spectra of the both native proteins, the amide III band of glycinin appears a peak at 1,245cm^<-1> and a shoulder peak at 1,235cm^<-1>, and that of β-conglycinin does two peaks at 1,240 and 1,250cm^<-1>. These bands are assigned to the presence of β-sheet structure. From these intensity, using a procedure described by Pezolet et al, we evaluate the β-structure content of glycinin and β-conglycinin to 28% and 24%, respectively. Also, from the backbone amide vibrations at 1,240 cm^<-1> in H_2O (amide III), and 1,632 and 1,660 cm^<-1> in ^2H_2O (amide I'), and methylene band at 1,448cm^<-1> of standards, using the method of Lippert et al the fraction of residues in the helix, β-structure and randam coil conformations is evaluated for glycinin and β-conglycinin.

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Experiments on draining of a cylindrical tank with a discharge pipe were conducted. Starch and CMC solutions were prepared as a Newtonian fluid and a pseudoplastic fluid, respectively. In the experiments, draining time for the fluids was measured. Initially, a sample solution was poured into the tank. Subsequently, the attached valve was opened, and the fluid drained out by gravity. When the container was filled with the Newtonian fluid, the draining time became longer depending on the fluid viscosity. On the other hand, in case of the pseudoplastic fluid, it turned out that the draining time depends on the value of flow behavior index n of the power-law model. As a result, experimental results were well correlated using equations for Newtonian and pseudoplastic fluids which were deduced from the macroscopic mechanical energy balance eauations.

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In order to develop on utility of sheep waste bloods, author et al, studied inclusion of the 11 kinds of amino acids into the white ghosts from sheep blood by the absorption spectroscopy. There was a problem that the including degree of an amino acid was not evaluated in order that membrane proteins removed from the erythrocyte. Because the absorption band of the amino acid overlapped of the membrane protein's band at around 200nm. Therefore, we removed membrane proteins by the repeatable washing with phosphorus acid buffer solution, and found a better condition of supersonic processing. When including amino acids by the improved procedures on preparation and inclusion, the 11 kinds of amino acids could be confirmed to be included. Furthermore, the degrees of the inclusion were varied by the kinds of an amino acid, so probability of selective separations of the amino acid could be expected.

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It is difficult to measure the salt-water intrusion in the field though the environment of the Lake Ogawara consists on a delicate balance of the salt-water intrusion and the salinity circulation. In this study, the amount of the salinity outflow-inflow is estimate respectively by a multiple linear regression analysis and fuzzy reasoning by using only the water level of the river mouth and the Lake Ogawara. The tendency of the amount of the salinity outflow-inflow in winter was able to estimate by the multi-layered neural network.

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Some laboratory tests are performed by changing proportion of sand, grain, glass beads, crushed stone in parallel. It is possible to control the permeability of soil and we want to propose a new criterion of clloging of filter matrials.

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The triaxial compression tests were carried out to study the strength and creep property of grouted and ungrouted sand. Then by using those experimental results, elast-plastic finite element methods were performed and predicted the deformations around the tunnel and ground surface, in each tunneling construction stages, with changing the influence of grouted area around the tunnel. In those analysis, Mohr-Coulomb model was used, and, by limiting excavation stage, time dependent Creep model was also used and compared with these models.

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In this article we introduce some interesting examples that are available in mathematics lectures at national colleges of technology. They are bungy jumps and some kinds of origami folding. First we analyze bungy jumps by solving some differential equations. Next, by folding origami, we draw several families of lines that are tangent to quadratic curves such as ellipses, hyperbolae and parabolas.

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In recent years, as a result of remarkable improvement and development of golf gears, the environment which surrounds golf has changed a lot. One of the desires which a golfer is always anxious to fill is to fly a ball farther and more correctly. And the engineering progress about the materials of golf club shafts has filled this desire by leaps and bounds. The point of swinging a golf club is how to give a big speed to the club head at the time of impact, and the speed is determined by the physical strength and skills of a golfer and the dynamic characteristics of the club used. This report is a record of the observations carried out, with a focus on the difference in the structures of carbon shafts, on the characteristics of unbending that are essential to the shafts. The experiments on the movements of frequency and the half-life period of attenuation by using a strain gauge showed that a shaft made of carbon fiber sheet. It can be said that development and progress of the function of a shaft continue to be a big concern in connection with golf playing.

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It is well known that the subject with which human beings have to tackle immediately at the start of the 21st century is an environmental improvement. When the golf course located in the city suburbs is seen from the standpoint of natural environment, its social evaluation has been changing with the times. A golf course has once been said to be the ringleader of natural destruction. However, now that development of the city suburbs and the place-between-mountains ground progressed quickly, the significance of its existence has rather increased, because it provides many living things with a habitation place as a precious green tract of land and people of the area can share a green blessing further. This report is a survey about how a suburbs golf course is reflected in the eyes of local residents from the field of environment and scenery. The author also thinks that observing about a golf course has a big meaning from the height of the concern about environment in recent years.

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