نتایج جستجو برای: power density

تعداد نتایج: 865915  

2017
Jun-Sheng Zheng Lei Zhang Annadanesh Shellikeri Wanjun Cao Qiang Wu Jim P. Zheng

Li ion battery (LIB) and electrochemical capacitor (EC) are considered as the most widely used energy storage systems (ESSs) because they can produce a high energy density or a high power density, but it is a huge challenge to achieve both the demands of a high energy density as well as a high power density on their own. A new hybrid Li ion capacitor (HyLIC), which combines the advantages of LI...

Journal: :Brazilian oral research 2015
Rafael Silva Beolchi Cacio Moura-Netto Renato Miotto Palo Carlos Rocha Gomes Torres Bruno Pelissier

The present study aimed to assess the influence of curing distance on the loss of irradiance and power density of four curing light devices. The behavior in terms of power density of four different dental curing devices was analyzed (Valo, Elipar 2, Radii-Cal, and Optilux-401) using three different distances of photopolymerization (0 mm, 4 mm, and 8 mm). All devices had their power density meas...

2005
Joel E. Cohen Adam E. Cohen Owen L. Petchey Andrew Gonzalez

Given a stationary time series X and another stationary time series Y (with a different power spectral density), we describe an algorithm for constructing a stationary time series Z that contains exactly the same values as X permuted in an order such that the power spectral density of Z closely resembles that of Y. We call this method spectral mimicry. We prove (under certain restrictions) that...

Journal: :International Journal of Modern Physics: Conference Series 2012

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