Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Peter W. Barber"'
Autor:
Claudio Mazzoleni, John G. Watson, Hampden Kuhns, Hans Moosmüller, Nicholas J. Nussbaum, Djordje Nikolic, Robert E. Keislar, Peter W. Barber
Publikováno v:
Transportation Research Part D: Transport and Environment. 9:477-496
Carbon monoxide (CO), hydrocarbon (HC), and nitrogen oxide (NO) emission factors (EFs) are measured with a commercial vehicle emissions remote sensing system (VERSS) during a large-scale vehicle exhaust emissions study in Las Vegas. Particulate matte
Autor:
Claudio Mazzoleni, Peter W. Barber, Robert E. Keislar, Hampden Kuhns, John G. Watson, Hans Moosmüller
Publikováno v:
Measurement Science and Technology. 15:2295-2302
An on-road vehicle emissions remote sensing system (VERSS) utilizing an ultraviolet laser (operating at a wavelength of 266 nm) has been developed to quantify the particulate mass in vehicle exhaust. The system simultaneously measures the backscatter
Autor:
Peter W. Barber, Claudio Mazzoleni, Norman F. Robinson, Robert E. Keislar, Djordje Nikolic, Hans Moosmüller, Hampden Kuhns, John G. Watson
Publikováno v:
Journal of the Air & Waste Management Association. 54:711-726
During the spring and summer of 2000, 2001, and 2002, gaseous and particulate matter (PM) fuel-based emission factors for approximately 150,000 low-tailpipe, individual vehicles in the Las Vegas, NV, area were measured via on-road remote sensing. For
Autor:
Claudio Mazzoleni, Zheng Li, John G. Watson, Peter W. Barber, Vicken Etyemezian, Robert E. Keislar, Hampden Kuhns, Djordje Nikolic, Hans Moosmüller
Publikováno v:
Science of The Total Environment. 322:123-137
A novel light detection and ranging-based remote sensing system was assembled and used to measure mass particulate matter (PM) emissions per unit of fuel burned from in-use on-road vehicles. A commercially available remote sensing system was concurre
Autor:
John G. Watson, Hampden Kuhns, Claudio Mazzoleni, Hans Moosmüller, Robert E. Keislar, Peter W. Barber
Publikováno v:
Environmental Science & Technology. 37:4971-4978
A novel vehicle emissions remote sensing system (VERSS) for the on-road measurement of fuel-based particulate matter (PM) emission factors is described. This system utilizes two complementary PM channels using an ultraviolet Lidar and transmissometer
Publikováno v:
IEEE Transactions on Antennas and Propagation. 41:295-303
A method of calculating the internal and scattered electric fields of a spherical dielectric object illuminated with a Gaussian beam is presented. The vector nature of the beam is considered. The fields satisfy Maxwell's equations, and the beam can b
Publikováno v:
Applied optics. 33(3)
The electric energy in a lossless or lossy spherical particle that is illuminated with a plane wave or a Gaussian beam is investigated. The analysis uses a combination of the plane-wave spectrum technique and the T-matrix method. Expressions for the
Autor:
Tak-Goa Tsuei, Peter W. Barber
Publikováno v:
Applied optics. 27(16)
The solution of the multiple-scattering problem for two parallel infinite dielectric cylinders is considered for plane wave illumination perpendicular to the cylinder axes. Numerical results show the coupling effect with respect to cylinder size, sep
Publikováno v:
Applied optics. 26(7)
Spatial distributions of the near-field and internal electromagnetic intensities have been calculated and experimentally observed for dielectric cylinders and spheres which are large relative to the incident wavelength. Two prominent features of the
Publikováno v:
Applied optics. 21(24)
By expanding the incident focused beam field in terms of its plane wave spectrum and by using the technique we developed earlier to treat the problem of the scattering of plane waves by arbitrarily shaped dielectric obstacles, we have been successful