The paper addresses the issue of control of world technological development under prescribed constraints on the emission of greenhouse gases. We use a stylized mathematical model of the world GDP whose growth leads to the increase of industrial emission provided investment in “cleaning” technology is insufficient. The proportion between investment in industrial technology and investment in “cle...

As the evidence mounts that some HOV lanes will not produce expected reductions in congestion and emission, alternatives are being sought. High occupancy toll (HOT) lanes and truck only lanes are attractive alternatives. In this study, a region-wide system of new HOV lanes, HOT lanes, and truck only lanes in the Sacramento region are compared. The travel effects are simulated with the Sacrament...

Near-Infrared (NIR) observations are presented for five Type IIn supernovae (SN 1995N, SN 1997ab, SN 1998S, SN 1999Z, and SN 1999el) that exhibit strong infrared excesses at late times (t & 100 d). H and K -band emission from these objects is dominated by a continuum that rises toward longer wavelengths. The data are interpreted as thermal emission from dust, probably situated in a pre-existing...

Here we report the discovery of very high energy (> 100GeV) γ-ray emission from the radio emitting X-ray binary LS I +61 303 with the Major Atmospheric Gamma Imaging Cherenkov (MAGIC) telescope. This high energy emission has been found to be variable, detected 4 days after the periastron passage and lasting for several days. The data have been taken along different orbital cycles, and the fact ...

We developed a new emission inventory for Asia (Regional Emission inventory in ASia (REAS) Version 1.1) for the period 1980–2020. REAS is the first inventory to integrate historical, present, and future emissions in Asia on the basis of a consistent methodology. We present here emissions in 2000, historical emissions for 1980–2003, 5 and projected emissions for 2010 and 2020 of SO 2 , NOx, CO, ...

Energy conservation and greenhouse gas (GHG) abatement have been included in the national development strategy of China, however, the rigidity in command-and-control, absence of market-mechanism and arbitrariness in assignment of abatement burden across regions have caused unnecessary losses in both economic efficiency and social equity. In this paper, we established an Inter-Regional CGE model...

A preliminary study of Acoustic Emission during orthopaedic screw fixation was performed using polyurethane foam as the bone-simulating material. Three sets of screws, a Dynamic Hip Screw, a small fragment screw and a large fragment screw were investigated, monitoring acoustic emission activity during the screw tightening. Some specimens were overtightened on purpose to investigate the possibil...