نتایج جستجو برای: photo activity

تعداد نتایج: 1160458  

Journal: :Science and Technology Development Journal - Natural Sciences 2021

2000
Chih-hsiang Cheng

Data collected with the BABAR detector at the PEP-II asymmetric B Factory at SLAC are used to measure the lifetimes of the B0 and B+ mesons. The data sample consists of 8.3 fb collected near the Υ (4S) resonance. B0 and B+ mesons are fully reconstructed in several exclusive hadronic decay modes to charm and charmonium final states. The B lifetimes are determined from the flight length differenc...

1996
Thomas G. Rizzo

We summarize the results of the New Gauge Boson Subgroup on the physics of extended gauge sectors at future colliders as presented at the 1996 Snowmass workshop. We discuss the direct and indirect search reaches for new gauge bosons at both hadron and lepton colliders as well as the ability of such machines to extract detailed information on the couplings of these particles to the fermions and ...

2011
Jian Zhang Graziano Chesi Yeung Sam Hung

This paper addresses the problem of estimating the 3D model of an object from a sequence of images where the object is visible from different point of views. In particular, the paper considers the case of turntable image sequences, i.e. images captured under circular motion. A new method is hence proposed for this problem, which consists of determining the image point correspondences of each 3D...

1991
Martin Ellis

The Micro Gallery, recently installed at the National Gallery in London, Is a public-access information system. It provides a comprehensive and richly interconnected illustrated encyclopedia of the cdlectlon. The paper summarizes the choice of technology, the system architecture and design issues. The purpose of the system Is to provide a resource to enhance visitors' appreciation of the painti...

2003
Ruigang Yang Marc Pollefeys Greg Welch

We present two extensions to the Space Carving framework. The first is a progressive scheme to better reconstruct surfaces lacking sufficient textures. The second is a novel photo-consistency measure that is valid for both specular and diffuse surfaces, under unknown lighting conditions.

Journal: :Chinese Journal of Catalysis 2021

Photo-thermal CO2 reduction with methane (CRM) is beneficial for solar energy harvesting and storage. The search efficient photo-thermal catalysts of great significance. Here, we reveal that group VIII metal supported by optical material WO3 are more effective CRM, giving catalytic activities visible light assistance 1.4–2.4 times higher than achieved under thermal conditions. activity enhancem...

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