Cluj-Napoca, Romania
Cluj-Napoca, Romania

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Florin T.,UT Cluj Napoca | Arsinte R.,INCDTIM Cluj Napoca | Mastorakis N.E.,Agiou Ioannou Theologou 17 23
International Conference on Visualization, Imaging and Simulation - Proceedings | Year: 2010

The goal of this paper is to analyze the daylight perception by the human eye and their adaptation to illumination. In order to do that we compute the spectral power distributions of the daylight, in function of these the color changes across the daylight. We simulate the perception of the daylight: in the sunset sky, the noon sunlight, the daylight etc. When the level of illumination is too high the iris makes prompt, momentary adjustments to changes in light intensity within the same light environment. Also, as measure of protection, the eye can be masked by windows or sun glasses.

Trusca M.R.C.,INCDTIM Cluj Napoca | Albert S.,INCDTIM Cluj Napoca | Soran M.L.,INCDTIM Cluj Napoca | Abrudean M.,Technical University of Cluj Napoca
Proceedings of 2014 IEEE International Conference on Automation, Quality and Testing, Robotics, AQTR 2014 | Year: 2014

It is necessary to maintain the constant temperature around 20 Celsius degree with a maximum deviation of 4 Celsius degree in Datacenter to work in the best condition. In this aim, two software were developed in INCDTIM for control and monitoring the important environmental parameters. These applications directly communicate with an equipment hardware that consists from an electronic board called 'AVR-NET-IO' with its own firmware using a microcontroller ATmega32 type. Using these control system it is possible to monitor the temperature variation in Datacenter, the active power on a long period and it will be possible to reduce the energy consumption. © 2014 IEEE.

Muresan L.M.,Babes - Bolyai University | Blejan D.,Babes - Bolyai University | Indrea E.,INCDTIM Cluj Napoca
Studia Universitatis Babes-Bolyai Chemia | Year: 2010

The Zn-Ni alloys have been electrodeposited from an alkaline bath containing triethanolamine as complexing agent for Ni2+ ions. Polyethyleneglicol (PEG), in combination with either coumarin, piperonal or vanillin have been tested as brightening agents. Their effect on the codeposition process and on the corrosion resistance of the resulted coatings was investigated. Under the examined conditions, the electrodeposition was of anomalous type. The effect of plating bath conditions on the corrosion resistance was studied by Tafel polarization measurements. It was found that the tested compounds had a beneficial effect both on deposits quality and on their corrosion resistance.

Trusca M.R.C.,INCDTIM Cluj Napoca | Albert S.,INCDTIM Cluj Napoca | Soran M.L.,INCDTIM Cluj Napoca
Proceedings - 2015 8th Romania Tier 2 Federation Grid, Cloud and High Performance Computing in Science, ROLCG 2015 | Year: 2015

The temperature is an important parameter for the equipment functioning. Computer systems are designed to work best when the ambient temperature is in the range 20-23°C. This requirement is ensured by automated systems that maintain the temperature around the computer systems, regardless of varying the amount of heat dissipated in operating by them or the environmental temperature variation. In the present work the temperature has been monitored using integrated air conditioning systems, as well as measuring external systems. Air conditioning systems consume a high quantity of electricity and it is necessary to know and supervise this value, too. It has been considered the power consumption variation depending on the ambient temperature variation and a monitored premises. We tried to minimize energy consumption by modifying the temperature of the monitored system, depending on environmental parameters. In this paper we used a device to alert the user if there are changes in system operating parameters especially temperature variations, changes that could result in damage to the computers if is not taken immediate remedial measures obtaining the great benefits in computers using. © 2015 Nat'l Inst. for Research and Development for Isotopic and Molecular Technology.

Florin T.,INCDTIM Cluj Napoca | Mastorakis N.E.,Agiou Ioannou Theologou 17 23
WSEAS Transactions on Circuits and Systems | Year: 2010

The goal of this paper is to study how different TV technologies work, and to compare them. We analyze three different situations: a CRT monitor, a LCD monitor and a LEDs monitor. Using the different monitors' spectral power distributions, we propose a six steps spectral image processing algorithm which converts the spectral image in to XYZ standard and then in to the RGB standard. Finally we colour balance the RGB image in order to eliminate the monitors unwanted render colours hues. On the monitors displays we expect to see the same colours text image. Also we present the monitor's colours properties like: colours saturation, brightness, contrast and sharp.

Florin T.,INCDTIM Cluj Napoca | Mastorakis N.E.,Agiou Ioannou Theologou 17 23
WSEAS Transactions on Circuits and Systems | Year: 2010

The goal of this paper is to generate a laser pulse and to capture it by an image acquisition system. We use a confocal resonator to generate a laser pulse; then the generate light is focused in to an optical fiber using a lens; the light propagates through the fiber and at the fiber output light is projected on a CMOS sensor. We compute the PSF (point spread function) and MTF (modulation transfer function) in order to characterize the functionality of the lens and the optical part of a CMOS sensor. We analyze the CMOS electrical part considering the photon shot noise and the FPN (fixed pattern noise). Finally, we use a Lapacian filter, an amplitude filter and a bilateral filter in order to reconstruct the noisy blurred image. We consider the image capture system to be linear shift invariant, axial and the light is orthogonal to the system.

Pinzaru S.C.,Babes - Bolyai University | Falamas A.,Babes - Bolyai University | Dehelean C.,Victor Babes University of Medicine and Pharmacy Timisoara | Morari C.,INCDTIM Cluj Napoca | Venter M.,Babes - Bolyai University
Croatica Chemica Acta | Year: 2013

Surface enhanced Raman scattering (SERS) effect is currently exploited as the basis of a new type of optical labels for in vivo investigation of the tissues, especially for early medical diagnostic. Silver colloidal nanoparticles decorated with chemisorbed cresyl violet molecular species could act as hybrid SERS labels. Their Raman scattering properties have been characterized here using different SERS techniques, and probing different excitation wavelengths, even in the near infrared. Obtaining FT-SERS signal of cresyl violet is of particular importance for applying FT-Raman spectroscopy to the tissues or cells, in providing sensitive information in the close vicinity of the SERS label incubated into the biological sample. Furthermore, upon chemisorption on the silver nanoparticles, cresyl violet molecular orientation provided both amino functional groups free of interaction with the silver, resulting double aminofunctionalized Ag nanoparticles suitable for DNA tagging. SERS tests of melanoma induced in mouse using CV-Ag SERS label suggested the possibility to setup the tissue labeling procedure for skin cancer monitoring.

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