F or longevity, few issues in the forest products industry rival the formaldehyde (HCHO) debate. The issue came to the fore in the mid-1970s as increased use of HCHO-emitting board products in more tightly constructed homes led to numerous complaints. As a result. U.S. Housing and Urban Development Agency (HUD) ruled in 1985 that the HCHO level of air in mobile homes would be limited to 0.4 par...

Broiler transport coops soiled with Campylobacter-positive feces have been shown to facilitate cross-contamination of broilers. Washing and sanitizing coop surfaces do not always effectively eliminate bacteria. The objective of this study was to examine drying as a means of lowering bacterial numbers on transport coop flooring. Small squares (5 x 5 cm) of fiberglass flooring from transport coop...

BACKGROUND Formaldehyde (FA) and other volatile organic compounds (VOCs) are considered among the main causes of atopic aggravation. Their main sources include wallpapers, paints, adhesives, and flooring materials. OBJECTIVE To assess the effects of environmentally friendly wallpaper and flooring material on indoor air quality and atopic dermatitis severity. METHODS Thirty patients with ato...

Freestall dairy farms commonly present issues with cattle slips and falls caused by smooth flooring and manure slurry. This study examined the effect of 4 new methyl methacrylate (MMA) resin aggregate flooring types (1-4) compared with rubber (positive) and concrete (negative control) on dairy cow (n=18) ease of movement when walking on straight and right-angled corridors. Our hypothesis was th...

Broiler housing and management have become important for both manufacturers researchers, with the increasing commercial demand over years. The most factor that creates conditions is floor system selection. reason systems are they allow broilers to reduce contact excreta help excess moisture be absorbed controlling ammonia level. Poor litter trigger painful pododermatitis will affect animal welf...

Raising beef cattle on concrete floors can negatively impact their welfare by increasing joint swelling and body lesions, as well as abnormalities in resting behavior and postural changes. We hypothesized that the addition of rubber mats to concrete pens would improve beef cattle welfare by improving performance, health, hygiene, and resting behavior. Forty-eight crossbred Angus steers were hou...

With the rapid development of China's solid wood composite flooring industry, market geothermal is gradually huge. The adhesives used in traditional are mainly urea formaldehyde resin and phenolic resin. Its bonded wood-based panel has problems emission poor waterproof. enhancement people's awareness safety environmental protection, problem attracted more attention. Looking for various free tha...

The vibration serviceability of flooring structures has been of concern for decades. To date, design criteria classifying the dynamic behaviour of different types of timber flooring structures to an acceptable degree have not been well established. Parameters commonly used to investigate and assess vibrational performances of timber floors include natural frequencies, damping ratios, dynamic di...