When C/SiC composites subjected to high-power laser irradiation under hypersonic airflow environment, “avalanche” phenomenon was found, i.e., the ablation rate significantly higher than that static air environment. To reveal this phenomenon, parallel experiments of air, short-time and long-time environments were carried out. Ablation models including oxidation, sublimation erosion considering c...

The purpose of this study was to determine the effects of vowel height and vocal intensity on the magnitude of anticipatory nasal airflow in normal speakers when producing vowel-nasal-vowel (VNV) sequences. Measurements of nasal and oral airflow were obtained from 15 men and 12 women with normal speech during production of the VNV sequences /ini/ and /ana/ at low, medium, and high intensity lev...

Tide-induced hydraulic head fluctuation results in significant airflow above the water table if the aquifer is air-confined, for example, if the aquifer is capped by low permeability materials. Hypothetical studies on the interaction between tidal fluctuation and airflow in coastal aquifers are carried out using an air–water two-phase numerical model. The results show that both the amplitude of...

This paper describes the development of a system for measuring airflow moving past the head of a humanoid robot. In recent years there has been growing interest in the development of humanoid robots. To function in a safe and efficient manner a humanoid robot must be 'aware' of its surroundings. For both a human and a humanoid robot airflow can provide useful information. Airflow sensors measur...

BACKGROUND Both airflow limitation and smoking are established cardiovascular risk factors. However, their interaction as risk factors for the development of atherosclerosis in coronary artery disease patients remains unclear. OBJECTIVES To evaluate the effect of the interaction between airflow limitation and smoking status on the severity of carotid atherosclerosis. METHODS We categorized ...

Let’s start with some good news: Getting paid for services that have traditionally required complex or expensive equipment or are most often provided by subspecialists should be easier with the introduction of new and revised codes for reporting these services. However, the good news comes with a caution: These codes reflect a significant change in health care delivery and, as such, payment for...

The efficacy of partial arytenoidectomy was assessed in 6 Standardbred horses, with surgically induced laryngeal hemiplegia, at rest (Period A) and during exercise at speeds corresponding to maximum heart rate (Period C) and 75% of maximum heart rate (Period B). Peak expiratory and inspiratory airflow rate (PEF and PIF), and expiratory and inspiratory transupper airway pressure (PUE and PUI) we...

Rehabilitation after laryngectomy includes more and more the use of airflow-regulating devices such as shunt valves (SVs), tracheostoma valves (TSVs), and heat and moisture exchange (HME) filters. In determining the quality of those devices, airflow resistance is a very important factor. It is currently defined as pressure drop divided by airflow. However, for most applications, this definition...

PURPOSE There are still evidence gaps on the prevalence of airflow limitation in Japan. The purpose of this survey was to estimate the prevalence of airflow limitation among healthy subjects in Japan and to show what proportion of subjects with airflow limitation had been diagnosed with chronic obstructive pulmonary disease (COPD). SUBJECTS AND METHODS This was an observational, cross-section...