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Relationship between the Concentration of Impurity and Albedo in Snow Surface

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Atmospheric and Climate Sciences 2015年第4期5卷 426-432页

作者： yuki Komuro Toshitaka Suzuki Graduate School of Science and Engineering Yamagata University Yamagata Japan

Recent decline of cryosphere typified by retreat of glaciers is often explained by temperature rise due to global warming. However, the existence of glaciers shrinking since before 1950s warming accelerated suggested that decline of cryosphere may be due to not only temperature rise, but also another possibility. As a possible cause of snow and ice melting, it has been pointed out that the surface albedo reduction due to increase of snow impurity, aeolian dust and anthropogenic pollutant, for example. To clarify the quantitative relationship between albedo and impurity in snow surface, we investigated the correlativity of turbidity and metal concentration in snow to the snow surface albedo from the simultaneous observations on the snow-covered area in Yamagata, Japan. The observed albedo shows a tendency of decrease with the turbidity increase in snow surface, we could find strong correlation between the albedo and the turbidity in 76% of contribution factor using logarithmic regression analysis. The relationship of albedo to total concentration of Fe and Al in snow surface shows the similar tendency to turbidity, we could model the relationship using logarithmic equation with high value of contribution ratio, 74% and 66%, respectively. The concentration ratio of Fe/Al is nearly constant with about 0.75, which is close to mean crustal ratio of both elements, therefore, it can be said there is a strong correlation between the albedo and the concentration of mineral particle in snow surface. We cannot find a significant correlation between the albedo and total concentration of Na in snow surface. It can be considered that Na existed as dissolved ion has not significant effect to the albedo in snow surface. These results indicate that the snow albedo correlates strongly with the particulate matter in snow surface, which is typified by mineral particle.

关键词： Snow Albedo Snow Impurity Mineral Particle Metal Analysis Acid Digestion

A New Type of Bridge, Mobilebridge^(■);to Super-Quickly Recover a Bridge

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World Journal of Engineering and Technology 2015年第3期3卷 170-176页

作者： Ichiro Ario yuki Chikahiro Department of Civil & Environmental Engineering Hiroshima University Higashi-Hiroshima Japan

Many natural disasters cause not only critical situations for facilities and resident’s residents’ life, but also significant damage to economy. It is obvious that quick rescue action must be undertaken and that there are many problems due to the occurrence of secondary disasters at rescue worksite. Basing Based on the previous study of deployable structures and the concept of the multi-folding micro-structures, we propose a new type of foldable bridge in form of scissor structure called the Mobile-bridge?. In this paper, we discuss the vehicle passing test performed on the real-scale Mobile-bridge in order to evaluate its mechanical characteristics and application limits. Moreover, we verified the compatibility between the result of calculations and experiments by means of theoretical modelling. The results show that it is sufficient to treat the load as equivalent nodal forces applied at the joints without including the stiffness of the deck.

关键词： Mobilebridge^(TM) Scissors Type of Emergency Bridge Deplyable Bridge Vehicle Loadings

Culturally Sensitive Medical Care and Nursing Support: A Study of the Concerns of Foreign Visitors to Japan

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Open Journal of Nursing 2019年第3期9卷 329-346页

作者： yuki Murase Miwa Yamamoto Graduate school of Medical Sciences Tottori University Yonago Japan Department of Adult and Elderly Nursing School of Health Science Tottori University Faculty of Medicine Yonago Japan

Background: Considering the development of international transportation in modern societies, nursing care needs to be sensitive to the cultures and customs of patients from other countries. The purpose of this study is to determine, from the perspective of culturally sensitive nursing support, the cultural practices that foreigners consider important when they visit a Japanese hospital for check-ups or hospitalization. Methods: A survey was completed by 110 foreign participants at a shrine in Kyoto City. The purpose of the survey was to evaluate the concerns of foreign visitors regarding Japanese medical providers, caused by cultural differences such as customs of daily life. The statistical analyses were performed using descriptive statistics as well as cross-tabulation, chi-square, and Fisher’s exact tests. Results: After grouping participants by continent, the top concerns observed in all groups about visiting a Japanese hospital were accessibility to and cost of medical care. First, as for medical facilities, participants from North and South America (North and South American) and Europe (Europeans) were significantly more concerned than those in Asia (Asians) (P P P P P Conclusion: Nurses need opportunities to learn and understand differences in cultures. If nurses have opportunities to learn cultural differences as well as to experience caring for foreign patients, their competencies in culturally sensitive nursing support will improve over time. It can be said that this is an issue not only in Japan but also in all other countries.

关键词： Cultural Care Cultural Differences Foreign Visitors Nursing Support Understand Different Cultures

Simulation of Human Phonation with Vocal Nodules

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American Journal of Computational Mathematics 2011年第3期1卷 189-201页

作者： Shinji Deguchi yuki Kawahara 不详

The geometric and biomechanical properties of the larynx strongly influence voice quality and efficiency. A physical understanding of phonation natures in pathological conditions is important for predictions of how voice disorders can be treated using therapy and rehabilitation. Here, we present a continuum-based numerical model of phonation that considers complex fluid-structure interactions occurring in the airway. This model considers a three-dimensional geometry of vocal folds, muscle contractions, and viscoelastic properties to provide a realistic framework of phonation. The vocal fold motion is coupled to an unsteady compressible respiratory flow, allowing numerical simulations of normal and diseased phonations to derive clear relationships between actual laryngeal structures and model parameters such as muscle activity. As a pilot analysis of diseased phonation, we model vocal nodules, the mass lesions that can appear bilaterally on both sides of the vocal folds. Comparison of simulations with and without the nodules demonstrates how the lesions affect vocal fold motion, consequently restricting voice quality. Furthermore, we found that the minimum lung pressure required for voice production increases as nodules move closer to the center of the vocal fold. Thus, simulations using the developed model may provide essential insight into complex phonation phenomena and further elucidate the etiologic mechanisms of voice disorders.

关键词： Aerodynamics Flow–Structure Interaction Self-Excited Oscillation Phonation Vocal Fold Larynx Vocal Tract Speech Production Voice Production Vocal Nodules Vocal Cord Polyp Voice Disorder

Optimization in Allocating Goods to Shop Shelves Utilizing Genetic Algorithm for Yogurt Sales Data

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Chinese Business Review 2013年第7期12卷 497-508页

作者： Kazuhiro Takeyasu yuki Higuchi Tokoha University Shizuoka Japan Setsunan University Osaka Japan

How to allocate goods to shop shelves makes great influence to sales amount. Searching the best fit allocation of goods to the shelves is a kind of combinatorial problem. This becomes a problem of integer programming and utilizing genetic algorithm （GA） being an effective method. Reviewing past researches, there are few researches made on this. Formerly, the paper concerning optimization in allocating goods to shop shelves utilizing the GA was presented by us. In those papers, the problem that goods were allowed to allocate in multiple shelves was pursued. In this paper, the problem that does not allow goods to be allocated in multiple shelves is examined and the concept of sales profits and sales probabilities is introduced. Optimization in allocating goods to shop shelves is investigated. An application to the shop shelves for yogurt is executed. Utilizing GA, the optimum solution is pursued and verified by a numerical example. Various patterns of problems must be examined hereafter.

关键词： display genetic algorithm (GA) optimization shelf profit retail store

Performance of Thermal Energy Storage Unit Using Solid Ammoniated Salt (CaCl<sub>2</sub>-NH<sub>3</sub>System)

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Natural Resources 2014年第8期5卷 337-342页

作者： yuki Sakamoto Hideki Yamamoto Faculty of Environmental and Urban Engineering Kansai University Suita Japan Faculty of Informatics Naragakuen University Nara Japan

The exothermic chemical reaction of CaCl2 (calcium chloride) with NH3 (ammonia) can be utilized as an energy storage system. Since this reaction is a typical gas-solid reaction, the reaction rate is controlled by the heat transfer rate. In order to improve the low heat transfer rate of the ammoniation and the deammoniation of CaCl2, the influence of a heat transfer media (Ti: titanium) on the heat transfer rate of the solid ammoniated salt (CaCl2.mNH3) was studied and tested experimentally. The performance tests were carried out under the conditions of various weight ratios of Ti. No decrease of the activation of chemical reaction and no corrosion of experimental apparatus were observed on the repeated runs (≥30 times each). The heat transfer rate of ammoniated salt was greatly improved by adding Ti under the constant pressure (0.5 MPa). The reaction time required for the ammoniation of CaCl2 mixed with Ti was approximately 16% - 54% shorter than that of CaCl2 alone, and the reaction time required for the deammoniation was also approximately 19% - 59% shorter than that of CaCl2 alone.

关键词： Energy Storage Unit Calcium Chloride (CaCl2) Ammonia (NH3) Ammoniated Salt Ammoniation Heat Transfer Media

A HISTRICAL REVIEW ON EFFECTS OF MAGNETIC FIELD ON HUMAN BEINGS AND URBAN SYSTEMS

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机械技术史

机械技术史 2008年 365-370页

作者： yuki NASU KENKICHI SATO Graduate School of Engineering Chiba University 1-33 Yayoi-cho Inage-ku Chiba-shi 263-8522 Japan

In our recent society based on science & technology,magnetic devices are working in many kinds of electric and mechanical systems,and their magnetic field level becomes higher and ***, therefore,are exposed sometime to higher magnetic *** materials used in the above mentioned systems,are employed in magnetic fields and we used them in our daily ***, the effects of magnetic fields on materials and human beings have not been *** authors have studied the effect of magnetic fields on fretting wear,and the result is complicated,i.e.,in some cases the effect is to accelerate the wear volume and in other cases is *** the present paper the authors describe the outline of magnetic effects on human beings and metallic materials.

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Exfoliative Cytology of Oral Mucosa Epithelium: Cytochemical Study and Morphologic Analysis of Patients with Type 2 Diabetes

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Open Journal of Stomatology 2019年第12期9卷 281-294页

作者： yuki Ogura Akira Fukatsu Laboratory Medicine for Dentistry Graduate School of Dentistry at Matsudo Nihon University Matsudo Japan Department of Oral Health Science Division of Laboratory Medicine for Dentistry Nihon University Matsudo Japan

Background: Diabetes mellitus is a metabolic disease characterized by chronic hyperglycemia. An association between diabetes mellitus and periodontal disease has been reported. However, few comprehensive reports have examined the impact of chronic hyperglycemia on oral mucosal epithelial cells. This study clarified the effect of diabetes on oral mucosal epithelium cells. Methods: Cells from 44 patients with type 2 diabetes and 10 healthy controls were collected from the buccal mucosa, gingiva, and lateral margin of the tongue by exfoliation. Samples were subjected to Papanicolaou staining;immunochemical staining using anti-AGE antibody, anti-Ki-67 antibody, and anti-p53 antibody;and lectin chemical staining. Furthermore, the nuclear area and cytoplasmic area were measured, and the nuclear/cytoplasm ratio was calculated. Results: A chromatin condensation-like substance was found in samples from some diabetic patients. In AGE staining, positive cells were found in both groups, although the rate of positive cells tended to be higher in diabetic patients. No positive findings were found for Ki-67 and p53 antibodies. PNA and RCA120 showed differences in staining between diabetic patients and controls. The nuclear area was significantly expanded in diabetic patients (P < 0.05). There was no significant difference between groups in the cytoplasmic area. The nuclear/cytoplasm ratio was significantly increased in diabetic patients (P Conclusion: These findings suggest that in patients with persistent hyperglycemia, changes in the sugar chain terminal of the cell surface may influence mucosal epithelial cell differentiation. The appearance of chromatin-like substances may be an indicator of the need for better management of type 2 diabetes.

关键词： Diabetes Mellitus Oral Exfoliative Cytology Cytochemistry Lectins

Atomic force microscopy analysis of orientation and bending of oligodeoxynucleotides in polypod-like structured DNA

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Nano Research 2015年第12期8卷 3764-3771页

作者： Tomoki Shiomi Mengmeng Tan Natsuki Takahashi Masayuki Endo Tomoko Emura Kumi Hidaka Hiroshi Sugiyama yuki Takahashi Yoshinobu Takakura Makiya Nishikawa Department of Biopharmaceutics and Drug Metabolism Graduate School of Pharmaceutical Sciences Kyoto University Sakyo-ku Kyoto 606-8501 Japan Institute for Integrated Cell-Material Sciences (WPI-iCeMS) Kyoto University Sakyo-ku Kyoto 606-8501 Japan Department of Chemistry Graduate School of Science Kyoto University Sakyo-ku Kyoto 606-8502 Japan

We previously demonstrated that polypod-like structured DNA, or polypodna, constructed with three or more oligodeoxynucleotides （ODNs）, is efficiently taken up by immune cells such as dendritic cells and macrophages, depending on its structural complexity. The ODNs comprising the polypodna should bend to form the polypod-like structure, and may do so by adopting either a bend- type conformation or a cross-type conformation. Here, we tried to elucidate the orientation and bending of ODNs in polypodnas using atomic force microscopy （AFM）. We designed two types of pentapodnas （i.e., a polypodna with five pods） using 60- to 88-base ODNs, which were then immobilized on DNA origami frames. AFM imaging showed that the ODNs in the pentapodna adopted bend-type conformations. Tetrapodna and hexapodna also adopted bend-type conformations when they were immobilized on frames under unconstrained conditions. These findings provide useful information toward the coherent design of, and the structure-activity relationships for, a variety of DNA nanostructures.

关键词： DNA nanostructure atomic force microscopy self-asse nanotechology structure-activity relationship