Seismic Analysis Using Synthetic Wave Based on the Dislocation Model to Simulate Ground Motions in the Hyogoken-Nanbu Earthquake 1995

The Green function based on the kinematics dislocation model has been newly developed in association with the convolution scheme in time for source function and in space along rupture direction. Synthetic waves derived from this model are corresponding to the bedrock motion. The ground model is formed with 3D multi-thin layers and the soils are linear material. Inhomogeneous rupture mechanism in faults is considered in terms of multiple asperities gained from the inversion information. In the shallow soils, non-linearity governs the dynamic behavior of the ground. Waves propagate with amplifications and absorption through the soft soil according to the frequency contents. Finite element analysis based on the plastic theory can include the dynamic properties of soils, the surface layer effects and the topographic conditions

Single hook model of fiber figures in card webs

In card webs, many fibers are not straight and generally have hooks or bends. In this study, a one-dimensional fiber figure model is discussed. Using correlation coefficients, a simple classification method for fiber figures is proposed. This method enables us to classify fiber figures into five categories: straight, leading- and trailing-hooked, and leading- and trailing-bent figures. This method is then applied to experimental data. The results indicate that the absolute values of the correlation coefficients of the vector quantities between the measured fiber figures and one of our models are greater than 0.8 in many cases. Thus, our proposed method is viable for the classification of fiber figures in card webs.ArticleTEXTILE RESEARCH JOURNAL. 86(11):1121-1127 (2016)journal articl

Classification of Haptic Tasks based on Electroencephalogram Frequency Analysis

AbstractIn recent years, it is difficult to inherit high level sensory skill, because the number of experts is not so much or the experts are too busy to teach their skill to the beginners. Therefore, many learners do the experiential learning through visual and haptic digital teaching materials. In such a system, however, it is difficult to evaluate whether the learner could recognize the sensation and obtain the sensory skill. In the paper, we investigate whether the biological signal such as EEG can be used for the evaluation of the haptic task skill level

Application of a truncated distribution for tsumugi yarn width

Hand-spun, silk yarn made from floss silk is referred to as tsumugi yarn. It gives a unique appearance on the products, also called tsumugi, which are considered to be an important type of fabric for their aesthetics. The essential factor of this visual effect is originated by the thickness variation of tsumugi yarn; however, the detail of the variation is unknown. In this paper, as a fundamental study of tsumugi yarn, its width distribution is discussed. To model the width distribution, the Polya-Eggenberger distribution is introduced. Moreover some modifications are applied for the distribution to describe the yarn's situation. That is to say, it is impossible to be thinner than a level of thickness for the yarn to maintain a shape of a thread; on the other hand, tsumugi yarn is not limited to only containing thicker parts. Additionally, it is unavoidable to involve errors and fluctuations in the actual data. Hence, the distribution is truncated and convoluted. By using an image scanner, the width of tsumugi yarn is measured. With the measured data, the parameters of the width distribution are estimated using the maximum likelihood method. The results show that the width distribution of tsumugi yarn is asymmetric and well summarized by the distribution.ArticleTEXTILE RESEARCH JOURNAL. 85(9):929-935 (2015)journal articl

Protein Expression of Fibroblast Growth Factor Receptor–1 in Keratinocytes During Wound Healing in Rat Skin

Fibroblast growth factors have been shown to play important roles in wound healing. To define their sites of action, we examined the expression of fibroblast growth factor receptor–1 (FGFR-1) during burn wound healing in rat skin by immunohistochemistry and western blot analysis. In cryostat sections of intact skin, little or no staining was observed. After a burn, however, staining for FGFR-1 was found in newly forming epidermis. The suprabasal layer of such epidermis, composed mostly of regenerating keratinocytes, was stained intensely, whereas keratinocytes in newly forming hair follicles were devoid of staining. Staining gradually decreased week by week after wound closure and was hardly visible 10 weeks after the burn, when the thickness of the epidermis had returned to the normal level. Staining was also found in small blood vessels and capillaries of granulation tissues of the dermis. Western blot analysis using the same antiserum was performed in the newly forming epidermis 10 d after the burn. A single band was detected with an apparent molecular weight of 120 kDa, corresponding to the short membrane-bound form of rat FGFR-1. Our study indicates that FGFR-1 is expressed during wound healing, mainly in regenerating epidermis and to some extent in blood vessels of the dermis. Fibroblast growth factors may affect the proliferation and differentiation of epidermal keratinocytes as well as angiogenesis in the dermis via the FGFR-1 expressed during wound healing

Characteristics of Novel Triplet Spun Yarns Made from Fibers of Differing Fineness

In order to reduce the hairiness of ring spun yarns and to develop novel multilayered spun yarns, we investigated the properties of triplet spun yams made from the same size of three rovings with different fiber fineness using an experimental ring spinning frame. The results were: (1) different fiber fineness triplet spun yarn, a new yarn made by combination staple fibers of three different fineness into one twisting process; (2) although triplet spun yarn had a side-by-side structure in the cross-section, the central angle made by the assembly of finer fibers was smaller than that of coarser fibers; and (3) in comparison with single yam, triplet spun yarn had less hairiness and greater strength because of the lower spinning tension of each strand and the twist propagation in each strand.ArticleTEXTILE RESEARCH JOURNAL. 79(10):947-952 (2009)journal articl

Exploratory Work on the Spinning Condition of the Structure of Staple-core Twin-spun Yarns

In order to design and develop novel-spun yarns with good functionality, we investigated how to construct a core-sheath structure adapted from a multilayered structure of triplet-spun yarn and/or made from a twin-spun yarn with core-staple fibers using an experimental ring-spinning frame. The results were follows: (1) staple-core twin-spun yarn, a new yarn, could be made by applying the production method of triplet-spun yarn and/or combining the production methods of core-spun yarn and twin-spun yarn into one twisting process; (2) by adopting three rovings made from fibers of differing length and fineness, the resulting triplet-spun yarn had the core-sheath structure within an adequate spinning condition; (3) for the construction of core-sheath structure, it is important that there be a difference between spinning tensions at the center and the two sides of the drafted fiber strands or drafted strand lengths from the front roller nip to the point of yarn formation by controlling the distance of the supply rovings and the yarn's twist factor.ArticleTEXTILE RESEARCH JOURNAL. 80(11):1056-1064 (2010)journal articl

The Ideal Way to Classes of Heian Era

The present study purposed that develop of new teaching materials to Heian Era, clear the ideal way to evaluation for unity of practice and evaluation.To accomplish this purpose, I practiced the classes. The result of this study that new teaching materials developed to Heian Era . But there is a task. And the result shows that there is task for evaluation

The Association Between Documentation of Koplik Spots and Laboratory Diagnosis of Measles and Other Rash Diseases in a National Measles Surveillance Program in Japan

Koplik spots are considered a disease-specific sign for measles, although comprehensive virological studies have not been conducted to date. In Japan, a national survey of 3023 measles and measles-suspected cases was conducted between 2009 and 2014 using polymerase chain reaction (PCR) or reverse transcription PCR (RT-PCR) to detect various rash/fever-associated viruses. Koplik spots were observed in 717 of 3023 cases (23.7%). Among these, the measles virus was detected in 202 cases (28.2%), while the rubella virus was detected in 125 cases (17.4%). Other viruses were detected in 51 cases having the spots (7.1%). In some of the cases with spots, two or three viruses, such as the rubella virus, parvovirus, and human herpesvirus type 6 were also detected. The sensitivity and specificity of Koplik spots as a diagnostic marker for measles were 48 and 80%, respectively. The results suggested that Koplik spots might appear not only in measles but also in other viral infections, such as rubella, as a clinical sign

Microscopic photometry and its parameterization for objective evaluation of aesthetics of woven fabrics

One of the most important end-use performance parameters for fabrics and other textile products are the fabric hands and fabric aesthetics. Our previous research attempted to elucidate the factors that affect the fabric aesthetics using factor analysis and identified two principal factors tentatively labelled as 'lustre and depth sensation' and 'surface roughness sensation'. The focus of the second step in the study of fabric aesthetics is on the investigation of the objective trends in the performance evaluation of textiles. In this study, we developed our own experimental equipment based on microscopic goniophotometric principles and its parameterization method. Subsequently, we attempted to define an index based on the distribution of the reflection intensity of woven fabrics and its characterization in order to evaluate the principal factors governing fabric aesthetics. On the basis of the results, we infer that microscopic goniophotometry and its parameterization is a more viable approach than conventional macroscopic goniophotometry for the quantitative evaluation of the principal factors governing fabric aesthetics.ArticleTEXTILE RESEARCH JOURNAL. 82(19):1982-1995 (2012)journal articl