Urban land area in the United States is projected to increase to 8.1% of total land area by the year 2050. These human-dominated environments create conditions that degrade both terrestrial and aquatic ecosystems. If cities are to reduce their environmental impact, innovative practices must be developed that replace ecosystem services lost during the urbanization process. This study evaluated t...

Roof rats (Rattus rattus) damage an estimated 5 to 10% of the developing nut crop in Hawaiian macadamia (Macadamia integrifolia) orchards. Relevant aspects of roof rat biology in macadamia orchards have and continue to be studied with the ultimate goal of developing an ecologically sound and cost-effective integrated pest management plan. The field component of a two-year study of roof rat popu...

The objective of this study was to evaluate temperature/humidity conditions in freestall barns with different types of gravity ventilation and to determine the risk of heat stress in cows based on the temperature-humidity index. The study was carried out during summer months (June/July) in two free-stall barns located in north-eastern Poland. The buildings for the study were selected based on t...

BACKGROUND Reduction of the tibia relative to the femur with the knee in maximum extension is required to correctly position the tibial tunnel in the sagittal plane when using a guide that targets the intercondylar roof. The authors found no studies that determined (1) whether gravity reduces the tibia and (2) whether roof impingement is prevented without a roofplasty and without positioning th...

Experiments involving transplantation of the roof of the blastocoel in Rana pipiens embryos reveal that the inner surface of the roof of the blastocoel must be coated with a fibrous extracellular matrix (F-ECM) to serve as a substratum for mesodermal cell migration. When the roof of the blastocoel is inverted the original outer surface, now projecting toward the blastocoel, does not become coat...

For centuries, dome roofs were used in traditional houses in hot regions such as the Middle East and Mediterranean basin due to its thermal advantages, structural benefits and availability of construction materials. This article presents the computational modelling of the windand buoyancy-induced ventilation in a geodesic dome building in a hot climate. The airflow and temperature distributions...

There is high demand for roadway support in coal mines for the swelling soft rocks. As high strength steel sets can be taken as an effective alternative to control large deformation in this type of rocks, based on an original set, three new sets, including a floor beam set, a roof and floor beams set, and a roof and floor beams and braces set, are proposed in this research. In order to examine ...

An approach to generate 3-D models of buildings from lidar data collected from an urban setting is presented. The present research focuses on extracting roof structures from a point cloud of a building using a combination of datamining techniques. To extract the roof structure, an assumption of planarity has been made, i.e. it is assumed that the roof can be modeled by a set of planar segments....

The outside convective heat transfer coefficient (CHTC) of building roof is an important parameter for accurately calculating heat transfer through roof and simulating airflow around buildings. However, the correlations concerning CHTC in various studies seem to be discrepant. The experiment using naphthalene method to measuring CHTC was carried out on a nine-story building roof during 15 Augus...