this paper investigates a procedure for identifying all efficient hyperplanes of production possibility set (pps). this procedure is based on a method which recommended by pekka j. korhonen[8]. he offered using of lexicographic parametric programming method for recognizing all efficient units in data envelopment analysis (dea). in this paper we can find efficient hyperplanes, via using the para...

The solar photovoltaic (PV) energy is one of the most promising sources of energy, which has attracted many interests. Itis potentially the largest source of energy in the world and is capable to mitigategreenhouse gas (GHG) emissions significantly in comparison with fossil fuels.Location optimization of solar plants can play a vital role to rise the efficiency and performance of the solar PV s...

data envelopment analysis (dea) is an efficient method to perform evaluation of units. in dea we try to evaluate units with undesirable factors in input & outputs by satisfaction function, testing some models. on the other hand benefiting this concept, we can identify non-efficient units. also we can recognize why these units are inefficient and calculate the reason of their inefficiency and ho...

We formally prove the correctness of the time super-e cient result checker for priority queues, which is implemented in LEDA [17]. A priority queue is a data structure that supports insertion, deletion and retrieval of the minimal element, relative to some order. A result checker for priority queues is a data structure that monitors the input and output of the priority queue. Whenever the user ...

According to the theory of efficient coding, sensory systems are adapted to represent natural scenes with high fidelity and at minimal metabolic cost. Testing this hypothesis for sensory structures performing non-linear computations on high dimensional stimuli is still an open challenge. Here we develop a method to characterize the sensitivity of the retinal network to perturbations of a stimul...

We present a new approach to the distributed visualization of geometric algorithms that emphasizes the position of the end user. Concepts are introduced that enable a more ex-ible usage of visualized geometric algorithms, while keeping the task of adapting existing algorithms to the new scheme as simple as possible. A main proposition is that interactivity should not be built into the visualize...

Wireless broadcasting system is of major two types namely push-based and pull-based. Extensible Markup Language (XML) is used to represent any information due to its inherent potential features such as scalable, self-describing, etc. Hence XML is chosen as standard for information dissemination in wireless broadcasting systems. Push based system periodically broadcasts XML data over the wireles...

To recognize objects, the human visual system processes information through a network of hierarchically organized brain regions. Many neurocomputational models have modeled this hierarchical structure, but they have often used hand-crafted features to model early visual areas. According to the linear efficient coding hypothesis, the goal of the early visual pathway is to capture the statistical...

Virtual memory (VM) is a notoriously complicated abstraction to implement, and is hard to change, specialize , or replace. Although a certain degree of exi-bility is achieved by user-level pagers, the control they provide is limited: they leave much of the VM system xed in the kernel, unreachable by the application. As applications become more diverse and the opportunity cost of bad memory poli...

We present the results from the CAKE (Cosmic Abundance below Knee Energy) balloon experiment which uses nuclear track detectors. The final experiment goal is the determination of the charge spectrum of CR nuclei with Z > 30 in the primary cosmic radiation. The detector, which has a geometric acceptance of ∼ 1.7 msr, was exposed in a trans-mediterranean stratospheric balloon flight. Calibrations...