- Color perception and design
- Textile materials and evaluations
- Ergonomics and Musculoskeletal Disorders
- Consumer Perception and Purchasing Behavior
- Thermoregulation and physiological responses
- Tactile and Sensory Interactions
- Olfactory and Sensory Function Studies
- Effects of Vibration on Health
- Color Science and Applications
- Interactive and Immersive Displays
- Muscle activation and electromyography studies
- EEG and Brain-Computer Interfaces
- Visual perception and processing mechanisms
- Impact of Light on Environment and Health
- Industrial Vision Systems and Defect Detection
- Infrared Thermography in Medicine
- Infant Health and Development
- Balance, Gait, and Falls Prevention
- Surface Roughness and Optical Measurements
- Heart Rate Variability and Autonomic Control
- Hand Gesture Recognition Systems
- Sleep and Work-Related Fatigue
- Computer Graphics and Visualization Techniques
- Indoor Air Quality and Microbial Exposure
- Diabetic Foot Ulcer Assessment and Management
Ōtani University
2014-2025
Shinshu University
2014-2024
Senshu University
2015
Yokohama Rubber (Japan)
2006
Nitto (Japan)
2003
Mukogawa Women's University
2003
Gifu Women's University
2002
The University of Tokyo
1995-2002
Nagano Prefectural Suzaka Hospital
2001
Suwa Red Cross Hospital
1995-1996
A neural network is constructed for classifying fingerprint images. The two-step learning method proposed as a process, together with the four-layered which has one subnetwork each category. classification results 500 unknown samples are 86.0% rate first candidate and 99.0% including second candidate. principle component analysis carried out respect to unit values of hidden layer, state represented by internal studied. It confirmed that patterns roughly classified into category in layer.<...
This paper argues for the immediate use of Kansei engineering to help deal with chaotic situation poorly implemented and disconnected technologies. A theoretical criticism current industrial capitalism, together promotion a new post‐industrial form lays foundation an explanation how this transition can be achieved through proper understanding . detailed interactive production system apparel demonstrates benefits both manufacturers consumers. The concludes that application is just one many...
This research was conducted with the goal of clarifying required conditions water-saving showerheads. In order to this, analyzes mutual relationship between water usage flow, level satisfaction and physical properties spray The were measured using test apparatus standard or scheme for showerheads issued in several countries, evaluation data acquired through bathing experiments. evaluated separated into three groups according flow satisfaction. relationships compared. results identified that...
We intend to develop earphone-type wearable devices measure occlusal force by measuring ear canal movement using an sensor that we developed. The proposed device can during eating. In this work, simultaneously measured the (ear value), surface electromyography (EMG) of masseter muscle and six times from five subjects as a basic study toward meter development. Using results, investigated correlation coefficient between value force, partial values. Additionally, average absolute for each...
The clothing comfort sensation is a combination of complex components, including psychological and physiological responses. General linear analysis not always sufficient for the evaluation sensation. current study sought to predict wearing an undershirt using artificial neural network (ANN). We constructed ANN models with data response as inputs, electrocardiogram thermo-physiological indicators, output. For input layer model, three conditions were used: only, both data. number hidden layers...
Sleep is an essential physiological activity for human beings and many studies have so far investigated sleeping comfort of mattresses. The appropriate measurement stress distribution within the body would provide valuable information to us. For estimate body, numerical analysis considered one most desirable techniques, Finite Element Method (FEM), which widely accepted as a useful technique, was utilized in this study. Since dimensions individual differences, however, it presumed that way...
The purpose of this study was to construct a scheme that makes it possible compare the relationship between water usage, satisfaction, and physical properties in three countries. shower were measured using testing apparatus water-saving standard or for showerheads issued several countries data users satisfaction evaluation acquired through bathing experiments. In paper, we analyzed result from Taiwanese Vietnamese individuals them Japanese subjects previous study. We compared showers...
When people evaluate cloth by handling it, they use a special finger motion depending on the purpose of their evaluation. Such sensory evaluation includes resilience, roughness, flexibility and softness. We observed compared motions both sensitive non-sensitive users. used glove-type measurement system with pressure sensors to investigate characteristics while evaluating hand cloth. The sensor provided data applied force used, as well patterns. This allowed us identify analyze differences...
This paper describes facial muscular activities in drowsy expression. We measured images and electromyograms (F-EMGs) a tracking task conducted with 17 participants. investigated the mechanism of expression through analysis F-EMGs. Contraction frontalis muscle relaxation zygomaticus major were found to be two common features The former activity appeared medium condition, but not arousal or dozing states. result indicates driver's resistance against drowsiness before reaching state, that...
This study aims to suggest improvements in the functionality and comfort of hygiene masks. Our preliminary surveyed users' actual experiences wearing masks from individual sensory, cognitive, holistic perspectives. We 1519 Japanese university students, obtaining information on whether they wore masks, purpose mask, if there were any problems with studied reported versus intended use by calculating co-occurrence relationship. The aggregated results showed that women more frequently than men,...
Purpose – In Japan, one of the countermeasures used to avoid symptoms hay fever (HF) is a hygiene mask; however, mask can cause discomfort. The authors believe that co-occurrence analysis, which has been widely in sciences, will be valuable this issue. purpose paper identify problems associated with use masks and recommend improvements their function comfort. goal study was obtain information for development effective HF sufferers therefore, improve quality life. Design/methodology/approach...
Tactile sensation of clothes is the important element that gives influence to a comfortable feeling by wearing clothes. Sensory test or physical characteristics has been used for evaluation tactile in But it difficult these methods evaluate objectively. We propose an method using physiological response purpose evaluating To clothes, we measured event related potential (ERP), detected P300 ERP. well known as ERP which reflected human recognition and stimulation. studied relation between...
Artificial leather used in this study was prepared by wet coagulation method with polyurethane resin a laboratory instrument. Various needle-punching nonwoven fabrics were as substrate material, which are widely the shoe industry of insole or artificial leather. To estimate comfort properties finishing for leather, we measured air, water vapor, and thermal transport properties; then evaluated changes each property finished dipped coated resin. The due to dipping coating processes may give...
Eyeglasses are commonly used to correct poor vision and also need be comfortable enough wear. It is necessary have a fitting at the time of purchase determine appropriate glasses position. Unfortunately, these fittings usually performed based on engineer's experience quantitative evaluation process has not been well examined. In this study we investigate wearing comfort by measuring clamping force various frames pain around ears when those glasses. From results measurements, found relatively...
We have inspected that correlation dimension analysis of electroencephalograms(EEG) was useful as a method for evaluating thermesthesia objectively.EEGs were recorded with ten Ag-AgCl electrodes affixed to the subject's scalp and without clothes in chilly environment.The EEG significantly smaller than .This result agreed sensory test .There no significant among electrode placements.From these results, we conclude would appear be criterion describe .
The purpose of this study is to evaluate thermal wearing comfort underwear made by blended yarn with polypropylene(PP). As a result experiment, factors PP were extracted as and water transport property skin contact feeling. By combining modified cross-section polyester, sweat could be transferred outside clothing its insulation prevented cooling body. useful materials adding the structural approach PP.
The condition of brain activity resulting from pressure exerted on the abdomen by waist belts was evaluated Electroencephalogram (EEG) measurement. We investigated possibility estimating psychological and physiological stress arising in clothing based EEG measurements. Waist are daily attire for both men women a requisite when with separate legs worn. There many studies to effect that is not desirable; however there hardly any research relation between activity. Moreover describing mutual...
Various approaches have been utilized in the overall study of facial expressions. And while results such research reported, little is known about actual mechanism how expressions are formed. Ishida et al. studied expression drowsiness. In their study, they discovered that contraction frontal muscle raises eyebrows when a person sleepy. However, correspondence between activity and rising not very clear. This investigated relationship them by using non-contact measurement systems EMG. As...
For the noninvasive measurement of swallowing muscle activity, surface electromyograms and sounds are used. The electromyogram electrodes can be placed appropriately only by experts with specialized knowledge about location group. Therefore, these sensors have not been used for measurements in food development, which there were no experts. In order to develop a simple method we proposed sensor sheet consisting multiple observed that different activities could measured depending on type food....
The purpose of this study is to clarify key factors for evaluating comfort sensation when wearing a cosmetic face mask. As result sensory tests masks, the most important factor related was facial skin contact feeling. material property tests, we extracted coefficients dynamic friction and elasticity as factors.
The purpose of this study is to evaluate the material properties knitted fabric with polypropylene (PP) blended yarn. were measured by Kawabata Evaluation System (KES), Japan Industrial Standards (JIS) and BOKEN standards. functionally effect blending appeared as specific gravity water & heat transport property. radius yarn became smaller number fiber greater because weight PP was light. Resilience against mechanical deformation blending. Moisture property could be added unless spoiling...