[in Japanese]

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[in Japanese]

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[in Japanese]

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The purpose of this paper is to find out what the eyes focus on when determining which way is north. Projects that required identifying north were assigned, then the subjects' eye movements were followed with an eye movement tracker, and their tracks and the amount of time they paused at each interval were determined. Results showed that the reaction time became faster as the number of directions the arrow pointed toward decreased for the four types of compass roses. Furthermore, for each compass rose, the subjects' reaction time shortened where the directional point the letter "N" (for north) was present. As for eye movement, the eyes tended to move toward the edges of the compass, on letters and at intersecting points. The subjects' eyes focused on "N" the longest. With regards to instructions by letter, those with just an "N" on the compass rose elicited a narrower range of movement in the eyes than for those indicating the four cardinal directions, north, east, south and west. Without a letter designation, the eye movement range tended to be more scattered.

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The supermarket industry is constantly examining how to reduce waste and improve net profit in difficult circumstances. To date, many prediction methods have been developed for reviewing the allocation of employees and part-timers by predicting the number of store visitors. However, the number of store visitors generally also includes accompanying visitors, and does not only consist of people making payments at cash registers. The present study proposes a system that, based on live POS data provided by an actual supermarket chain and examining rental cash registers, predicts the optimal number of cash registers in operation for each time band several weeks after introducing register operation rates and numbers of visitors leaving per unit time. The present paper proposed a method to obtain data including the optimal number of cash registers in operation from the POS data. It also investigated the factors in fluctuating customer numbers in concrete terms. Moreover, it evidenced that the optimal number of cash registers in operation hardly changes after 1-2 weeks. This allows for the appropriate planning of cash register staff numbers per time unit. Furthermore, it enables stores to obtain the optimal number of cash registers. The store whose POS data were used had 7 cash registers, but it was ascertained that when the optimal operation rates were 80 %, 70 %, and 60 %, sufficient cash register numbers were 4, 5, and 6, respectively. Opening hours for this store were between the 7 am and 10 am time bands. Virtually no customers visited the store in the 7 am, 8 am, and 10 pm time bands regardless of the day of the week, and it was concluded that the opening hours should be changed to the 9 am - 9 pm time bands.

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Golf clubs mainly consist of three parts, namely head, shaft, and grip. It was in the shaft that composite materials are used most. The shaft plays a role of storing up energy during the swing, by way of deforming itself due to bending and twisting moment, and releasing the stored energy at the impact of hitting balls. Shafts can be characteristic in weight, flexural--rigidity, torsional-rigidity, frequency and intensity. Therefore, shafts are considered one of the most suitable sports equipment to apply the excellent characteristics of composite materials to. "Sheet Winding method", using uni-directional (UD) prepreg, is the most widely used process in golf shaft manufacturing. "Braiding method", on the other hand, produces the shafts with three-dimensional braiding structure, using the prepreg with more resin than UD prepreg. This method can only use the limited kinds of carbon fiber. So there is less flexibility in design. However, braided composites are unique and attractive in product line-up, together with their mechanical characters, in comparison with sheet wrapping composites. Braided fabrics are composed of Braided Yarns (BY) oriented diagonally and Middle End Yarns (MEY) inserted into the fabric in longitudinal direction. Therefore it's different in design technique because it's different in the internal structure. Braided composites are unique and attractive with their mechanical character, in comparison with sheet wrapping composites. In this study, the influence on intensity caused by grinding was examined. At first, the influence of amount of grinding in 4point bending test was considered. Next, cantilever bending strength test of golf shaft was performed. And the influence of amount of grinding was clarified about these bending tests.

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In this paper, cells with added HCl in the electrolytes were prepared respectively. The result of HCl added sample shows a higher open circuit voltage (OCV) than a commercial one and even higher than that of a theoretical one. Its current density also shows 0.02 A/cm2 higher than that of commercial one. It will be an advantage in redox reaction through removal of reaction product and decreasing of pH by HCl. From the XRD result of anode Zn plate, ZnCl24Zn(OH)2H2O was mainly found on the plate. On the other hand, the HCl added sample shows only one species of ZnO and Zn(OH)2. This result can explain that ZnCl24Zn(OH)2H2O is easily disrobed in HCl solution. These results suggest that another reaction occurred at the same time with the normal redox reaction by HCl addition. In addition, standard electrode potential will change with pH of electrolyte. It is easy to realize from Nernst equation and a decrease of pH will raise OCV and current density. In this paper, the possibility of high performance manganese dry battery is shown.

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[in Japanese]

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The present study aimed to examine the psychological structure of a critical attitude against governmental bureaucracy in Japan on the basis of Ortega's concept of the "masses" and Weber's concept of the "bureaucracy". A questionnaire survey (n = 400) was conducted using several measurements such as the vulgarity scale, which was constituted of the two subscales, i.e. arrogance and autistic, to measure the psychological personality of the masses, the tendency of overweighting formality in ambiguous situation to measure a bureaucratic attitude, and measurements regarding political and social bureaucratization. The result showed that the vulgarity scale and tendency of overweighting formality in ambiguous situation had a positive association, which implied that the higher the vulgarity of an individual is, the more the individual tends to adopt an attitude like a petty official. It was also shown that the arrogance factor was positively related with an attitude supporting a petty bureaucrat, while the autistic factor was negatively related with an attitude supporting a political bureaucrat. Furthermore, the arrogance factor was shown generally to have positive relationships with attitudes towards social bureaucratization. Finally, given the present results, measures to reduce the negative impacts of bureaucratization by the masses were discussed.

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Acid-treated collagen has the isoelectric point (pI) of approximately 7-9. On the other hand, the pI of the alkali-treated collagen (AC) is shifted to approximately 5 due to the conversion of the glutamine and asparagine residues to glutamic acid and aspartic acid residues, respectively. In our previous study, we showed that AC hydrogel was promising as a sustained-release carrier of basic fibroblast growth factor (bFGF). However, glutaraldehyde, a toxic chemical cross-linker, was used for cross-linking of AC molecules. In this study, we focused on oxidative coupling reaction of feruloyl groups of sugar beet pectin (SBP) catalyzed by horseradish peroxidase. We found that AC and SBP composite hydrogel formed by the enzyme reaction. Optimization of HRP and hydrogen peroxide concentrations resulted in rapid formation of the AC/SBP hydrogel. We confirmed that cytochrome-c, a model for bFGF, electrostatically adsorbed to the composite hydrogel. These results indicate that the AC/SBP hydrogel is promising as injectable gel for sustained-release of bFGF.

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[in Japanese]

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A pH glass electrode are made of lithium-rich special glass, and the durability is often inferior in comparison with general hard glass. The glass electrode is often used under strong alkalinity or acidic conditions, and wherein the electrode has an extremely short life. In recent years, oxynitrideglasses have been reported in which a part of oxygen in the glass structure was replaced with nitrogen, for superior durability in strong acid and a strong alkaline solution. In this study, Li2O-SiO2-Si3N4 glass was prepared, and the possibility of the application as the pH responsive glass was checked. As a result, the new glass electrodes showed good response time for pH standard as short as ten seconds. Furthermore, its sensitivity between pH 4 and pH 9 was more than 97 % against theoretical value. The glass showed approximately 1/2 of silicon and lithium elution in alkaline solution for the chemical durability, compared with traditional pH responsive glass.

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The education in Japan is sorted by humanities and science. Many doubts have been shown so far for this division. This report will show a doubt that the law which is the representative field of the humanities and the mathematics which is the representative field of the science are the same things for this division. This report will state mathematicians and lawyers were the same existence history, and what the differences between the thought of science and that of humanities is, and it will show that the humanities and the science are same.

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It is necessary to provide health management and abnormality countermeasure systems for elderly persons with the advancement of an aging society. The application of health management for aging people using a pedometer was examined in this study. It is considered that the number of steps correlates strongly with the amount of physical exertion. Circadian fluctuation and the long term change of steps for the elderly subjects were analysed. As the result, the physical activity can be estimated by the number of steps and it is able to apply to health management. It could be also recognized whether the subject lives their life as usual using the steps characteristic or not. The steps of an elderly subject (woman, over 85 years old) is extremely low compared with one for a middle-age subject. The middle-age subject had a week痴 period in the steps characteristic. In the period, the subject had a nearly constant number of steps on Monday to Friday and a high steps number on Saturday and Sunday because of playing tennis. This study was carried out with restricted subjects. It is necessary to examine the characteristics of more subjects. However, it is thought that a trend is shown.

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[in Japanese]

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From the moment cellphones first appeared in Japan 30 years ago, their sales have been growing at a dramatic pace. However, Japan's cellphone market is now saturated. It is monopolized by three major cellphone carriers: NTT DoCoMo, KDDI, and SoftBank Mobile. These three companies are competing fiercely for market share, offering a wide range of products and services, including phone models with an ever greater number of features and a wide variety of price plans. From the consumer's standpoint, this has led to increased purchasing costs. In response to this situation, this paper focuses on the creation of a system designed to enable consumers to choose a cellphone carrier relatively easily, using a classifier. The system is intended to help reduce purchasing costs by offering a relatively effective and convenient selection method to consumers faced with having to choose among the three cellphone carriers.

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[in Japanese]

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