منابع مشابه
An Improved Multi-Level Raytracing Algorithm
Previous work has used entry point search (EP search) to accelerate raytracing by avoiding redundant traversal of nodes in a KD tree. EP search works by identifying a node which may be used as a starting point for tracing a particular group of coherent rays, thus bypassing all nodes above it. This is most effective when all rays can be shown to be occluded, since a leaf or low inner node can of...
متن کاملWATER-LEVEL FLUCTUATIONS Ecological effects of water-level fluctuations in lakes: an urgent issue
Water-level fluctuations (WLF) affect the ecological processes and patterns of lakes in several ways. Aquatic habitats and feeding or breeding grounds are gained or lost, as light, climate and wave impacts change to mention only a few phenomena. While the phenomenon of WLF has been studied in many rivers (better known as flood pulse, Junk & Wantzen, 2004) and environmental flows (Bunn et al., 2...
متن کاملAn Improved WAGNER-WHITIN Algorithm
We present an improved implementation of the Wagner-Whitin algorithm for economic lot-sizing problems based on the planning-horizon theorem and the Economic- Part-Period concept. The proposed method of this paper reduces the burden of the computations significantly in two different cases. We first assume there is no backlogging and inventory holding and set-up costs are fixed. The second model ...
متن کاملAn improved time marching algorithm for GWC shallow water models
Finite element solutions of the shallow water wave equations have found increasing use by researchers and practitioners in the modeling of oceans and coastal areas. Wave equation models successfully eliminate spurious oscillation modes without resorting to artificial or numerical damping. Typically, wave equation models integrate the continuity equation with a three-time-level scheme centered a...
متن کاملAn improved method of water electrolysis – effect of complexing agent
The present work investigates the efficiency of an alkaline water electrolysis process in the presence of a complexing agent like citric acid (CA) when added directly into the electrolyte during the electrolytic process. High surface area nickel electrodes prepared by electrodeposition technique were used as the electrode to evaluate the efficiency of the oxygen evolution reaction (OER) by the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Franklin Institute
سال: 1848
ISSN: 0016-0032
DOI: 10.1016/0016-0032(48)90472-4