A historically unprecedented mountain pine beetle (MPB) outbreak affected western Montana during the past decade. We examined radial growth rates (AD 1860-2007/8) of co-occurring mature healthy and MPB-infected ponderosa pine trees collected at two sites (Cabin Gulch and Kitchen Gulch) in western Montana and: (1) compared basal area increment (BAI) values within populations and between sites; (...

Abstract This paper presents the development of a cabin noise testing equipment that will be used to evaluate interior regional aircraft as well aid reduction techniques. The innovative generation system consists three loudspeaker arrays positioned around fuselage circumference synthesize pressure field is similar seen by during flight. acoustic generated loudspeakers measured number microphone...

Cabin air quality and thermal conditions have a direct impact on passenger flight crew’s health comfort. In this study, in-cabin environment particulate matter (PM) exposures were investigated in four China domestic flights. The mean standard deviation of the carbon dioxide (CO2) concentrations two tested flights are 1440 ± 111 ppm. measured maximum monoxide (CO) concentration is 1.2 ppm, which...

An efficient finite volume approach has been used to develop a three dimensional Helmholtz acoustic solver for complex geometries. This acoustic solver was utilized to obtain characteristic mode shapes and frequencies of a baffled combustion chamber. An experimental setup, including stationary and moving sensors, has also been used to measure these quantities for the same model combustion chamb...

In order to reduce the temperature in marine engine cabin, improve working environment of staff and meet economy emission requirements, cooling system was experimentally investigated present study. this regard, water air-cooling schemes were studied main indicators including torque, smoke-emission, exhaust analyzed. The obtained results indicate that highest torque can be from turbine case pipe...

BACKGROUND Commercial air travel is cheap and accessible. Many patients living ever better lives despite chronic lung disease wish to, and do, fly. Statistics tell us that misadventure is rare and that flight must be safe for the majority of people. OBJECTIVE To assist the general practitioner in assessing and advising patients with lung disease on issues relating to the risks associated with...

In this paper, we describe a new framework to combine experts’ judgments for the prevention of driving risks in a cabin truck. In addition, the methodology shows how to choose among the experts the one whose predictions fit best the environmental conditions. The methodology is applied over data sets obtained from a high immersive cabin truck simulator in natural driving conditions. A nonp...

This paper presents a conceptual approach for decision support applied in a collaborative complex system design project. The approach takes advantage of the use of Similarity-based Formal Concept Analysis (SFCA) to classify, visualize, and explore simulation data in order to help system designers to identify relevant design choices. The approach is illustrated on an aircraft cabin design case s...