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Glowworm Swarm Optimization Algorithm (GSO) is one of new swarm intelligence optimization algorithms in recent years. Its main idea comes from the cooperative behavior source among individuals during the process of courtship and foraging. In this paper, in order to improve convergence speed in the late iteration, avoid the algorithm falling into local optimum, and reduce isolated nodes, the Adaptive...
The effect of ambient light source and display type on visual fatigue was investigated. The tested ambient illumination included 120Hz full modulated LED light source, normal fluorescent light source and dark environment. And the tested display type included 2D and 3D based on shutter glasses. Visual fatigue was measured with subjective ratings (12 symptoms, considering general discomfort and eye...
A WFMS is a system for managing activities involving the coordinate execution of multiple tasks performed by different processing entities. Most WFMS design techniques are manual, but automation is increasingly becoming an important aspect of WFMS designs.
Nowadays, since visual display terminals have been widely used in office for all day work, the research on the effect of long time work is still insufficient. In addition, the impact of LED light source for all day work is not clear. In this paper, the visual fatigue caused by long-term VDT work under LED luminaires with 300lux illuminance level was investigated through subjective questionnaire and...
The difference of perceived glare between two different working modes (i.e., computer work and reading/writing) caused by LEDs in office was investigated. Discomfort glare are evaluated in two aspects, the general glare and overhead glare. For general glare study, all the LED luminaires installed in the ceiling of the experimental room were switched on to realize a uniform lighting distribution like...
The impact of ambient illumination on visual fatigue while watching TV was investigated. The tested ambient illumination included 120Hz full modulated LED light source, normal fluorescent light source and dark environment. Visual fatigue was measured with subjective ratings (12 symptoms, considering general discomfort and eye fatigue) and ophthalmological parameters (CFF, NRA, PRA, NPA, NPC) both...
In this paper, a class of decentralized bi-level programming model with multi-objectives in the upper level is introduced, in which discrete fuzzy random parameters are considered. To make the model calculable, we apply a transformation method to transform the discrete fuzzy random variables into fuzzy numbers which are then dealt with using an expected value method. As it is very difficult to solve...
Using luminaires with high luminance efficiency may reduce the required number of luminaire installations in the ceiling, and as such effectively decrease the cost and save energy. However, it may also result in a negative effect on visual comfort. In this paper, we describe a subjective experiment to investigate the effect of spacing between luminaires on visual comfort. Results show that it's possible...
The aim of this paper is to consider the supplier selection problem under a hierarchical decision system. With consideration of the inherent uncertainty, An decentralized bilevel optimization model under fuzzy random environment is developed for tracking a supplier selection problem with multiple items. For solving the bi-level programming model, an interactive fuzzy programming technique and an improved...
In this paper, we consider a class of linear bi-level programming with random fuzzy coefficients, which has no mathematical meaning because of the uncertain factors. In order to make it solvable, we introduced the linear bi-level model with expected objectives and chance constraints, and propose some theorems to obtain the equivalent models. Then we employ the interactive programming technique to...
Gas detector has been playing an indispensible role in the development of the nuclear physics. New gas detectors have been stringing up to satisfy the growing demand from detecting. In the work, a novel flat panel detector, based on the structure of shadow mask plasma display panel (SM-PDP) 1, is proposed and its characteristics are investigated.
An atmospheric neon plasma jet modulated by pulse waveform generator is presented in this paper. We found that Ne(585nm) emission is more concentrated to the center area of the plasma channel compared to Ne(640nm) emission. The experimental results showed that the relative intensity of different types of emissions change with the applied voltages and the positions. The duty ratio and the frequency...
Recently, an atmospheric pressure plasma jet (APPJ) has been attracting significant attentions, due to its non-thermal mechanisms and corresponding effects, especially its wide applications in biomedicine[1]. An atmospheric neon plasma jet modulated by pulse wave generator is presented in this paper.
Temporal modulations of light from AC-LED sources can produce a number of visible artifacts, such as flicker, stroboscopic effect, etc. Flicker is common in low frequency situations, while the stroboscopic effect exists even at high frequencies. This paper studies the influence of the frequency of modulated light on the visibility of the stroboscopic effect, as well as the difference between Chinese...
A type of ultra-thin shadow-mask plasma microdischarge device is being developed for the high-quality display and UVB phototherapy. Thanks to the 150 μm shadow-mask and the 70 μm borosilicate glass with a dielectric constant of 6.7, a sealed panel can be fabricated as thin as 300 μm while the thickness of the device with electrode bandings can be made less than 1 mm1. The shadow-mask is a special...
Different protective layer materials used in plasma display panels (PDPs) have been explored. A high secondary electron emission yield is due to a low value of the combination of band gap and electron affinity. The materials such as MgO-Cs2O and MgO-CsI will be good candidates for protective layers.
The rapid growth of economy and improvement in living level of households in China require more input of energy, while more energy consumption causes severe environment pollution, which in turn affects environmental quality and economic development. Using grey relevancy analysis and these data about consumption of industrial energy and environmental quality from Henan province, we studied the impact...
Enterprises have become increasingly dependent on online social network to carry out beneficial e-business model and achieve better performance. This paper aims to explain and demonstrate how an online social network environment where enterprise cooperative behaviors and interaction structures coevolve influence enterprise business model. By constructing components model of enterprise business model...
Colorimetric characterization is the basic work of color reproduction. To find an optimized method to evaluate different types of displays is of great importance. The object of this study is to compare several universal algorithms which can be used for different types of displays. Different color space and whether gamma correction is applied are considered. The results illustrate both methods generated...
In the process of software quality evaluation, there are two main problems. One is how to solve the uncertainty of attributes. The other is how to solve the operation between qualitative and quantitative. So, the paper uses cloud model, and proposes a fuzzy multi-attribute cloud evaluation method. And then it is used to evaluate the quality of software, and get active result. The result shows it can...
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