The quantity Y X , the product of the X-ray temperature T X and gas mass M g , has recently been proposed as a robust low-scatter mass indicator for galaxy clusters. Using precise measurements from XMM-Newton data of a sample of 10 relaxed nearby clusters, spanning a Y X range of 10 13 –10 15 M ⊙ keV, we investigate the M 500 –Y X relation. The M 500 – Y X data exhibit a power law relation with...

High power, high brightness diode lasers are beginning to compete with solid state lasers, i.e. disk and fiber lasers. The core technologies for brightness scaling of diode lasers are optical stacking and dense spectral combining (DSC), as well as improvements of the diode material. Diode lasers have the lowest cost of ownership, highest efficiency and most compact design among all lasers. Mult...

0924-2716/$ see front matter 2012 International http://dx.doi.org/10.1016/j.isprsjprs.2012.07.003 ⇑ Corresponding author. Address: 3100 Monitor A Oklahoma, Norman, OK 73072, USA. Tel.: +1 405 325 E-mail address: [email protected] (S. Sheldon) In this study, we evaluate a methodology that uses dual-polarization L-band SAR 500-m mosaic PALSAR imagery to identify and map forests in the Brazilian...

Mohammed Mushthaq Ahmed, Quddusa Sultana, A Supraja Reddy & M A Malik Department of Electronics and Communication Engineering, Deccan College of Engineering and Technology, Hyderabad 500 001, AP, India Research and Training Unit for Navigational Electronics (NERTU), Osmania University, Hyderabad 500 007, AP, India Deccan Group of Institutions, Hyderabad 500 001, AP, India E-mail: mushthaq.md@gm...

Yong-Bin Kim* Tom Chen** *Microelectronics Division Samsung Electronics Co. San Jose, CA, USA **Department of Electrical Engineering Colorado State Univ. Fort Collins, CO 80523, USA Abstract This paper describes a CMOS variable delay line Delay Locked Loop(DLL) circuit speci cally designed for reducing clock skew on DRAM/Logic merged integrated circuit using 0.6 m CMOS process. A phase detector...

Global tree cover percentage is an important parameter used to understand the global environment. However, the available global percent tree cover products are few, and efforts to validate these maps have been limited. Therefore, producing a new broad-scale percent tree cover dataset is valuable. Our study was undertaken to map tree cover percentage, on a global scale, with better accuracy than...