Aiming at the non-stationary and stall flutter problems of wind turbine blade caused by transient load fluctuations, the dynamic properties of wind turbine were studied, the blade was simplify to a cantilever beam in case of the action of shear deformation and cross section rotating effect were considered in this analysis, equations of the blade were established based on D'Alemberts' principle ...

An investigation into the total blockage effects on aerodynamic drag in closed-wall wind tunnel testing has been carried out by computational fluid dynamics (CFD). The simulation of flow past two different realistic, full-scale, heavy-duty truck models was conducted. The models were placed at different yawing angles in the virtual wind tunnels with blockage ratio of about 10%; which is exactly ...

To provide differential effectiveness on length of stay at a shelter and receipt versus non-receipt of a protection order (PO), and outcomes of violence, functioning, and resiliency, in 300 abused women (150 first-time users of a shelter and 150 first-time applicants for a PO) who participate in a 7-year study with outcomes measured every 4 months. Four months after a shelter stay or applicatio...

Plasmacortisol levels were examined to assess the stress of dogs in a county animal shelter. Groups of dogs confined in the shelter for their 1st, 2nd, or 3rd day had higher cortisol levels than did a group maintained in the shelter for more than 9 days. Dogs in the shelter for an intermediate period (Day 4-9) had intermediate levels of cortisol. The cortisol concentrations of dogs during their...

Doubly-fed induction generator (DFIG) based wind turbines with traditional maximum power point tracking (MPPT) control provide no inertia response under system frequency events. Recently, the DFIG wind turbines have been equipped with virtual inertia controller (VIC) for supporting power system frequency stability. However, the conventional VICs with fixed gain have negative effects on inter-ar...

Growth and water relations of Kentucky coffee tree [Gymnocladus dioica (L.) K. Koch] whips in translucent tubelike shelters were investigated. In a container study, 1.2m-high shelters were placed over whips following transplanting, then diurnal microclimate, water relations, and water use were measured. Shelter air temperature and vapor pressure were substantially higher, and solar radiation wa...

Domestic dogs and cats are commonly infected with a variety of protozoan enteric parasites, including Blastocystis spp. In addition, there is growing interest in Blastocystis as a potential enteric pathogen, and the possible role of domestic and in-contact animals as reservoirs for human infection. Domestic animals in shelter environments are commonly recognized to be at higher risk for carriag...

OBJECTIVE The study examined changes in the use of shelters in New York City by mentally ill persons with a history of homelessness who received housing placements through the New York-New York (NY/NY) housing initiative between 1990 and 1999 and the impact of the initiative on the overall demand for shelter beds in the city. METHODS Computerized service records on housing, shelter use, and h...

In this study, we first analyze the specific dynamics of the shelter site location problem for an application in Turkey and develop a mixed integer linear programming based methodology which incorporates with their requirements of the Turkish Red Cresent and improve their current system. The mathematical model maximizes the minimum weight of open shelter areas while deciding on the location of ...

INTRODUCTION Intimate partner violence is a significant public health problem, with shelters offering the predominant community-based solution. Shelters in Canada are mandated to provide a safe place, protection planning, advocacy and counseling among other services. Recently it has been noted the role of the shelter was shifting from an inpatient to outpatient model with a focus on increased i...