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Prof. Georges Zissis
Université Toulouse 3 - Paul Sabatier

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Short Biography

Prof. G. ZISSIS is today full professor at Toulouse 3 University (France). His primary area of work is in the field of light sources science and technology. He is especially interested in the physics of electrical discharges used as light sources; system and metrology issues for solid-state lighting systems; normalization and quality issues for light sources; impact of lighting on energy, environment, quality of life, health, and security; interaction between light sources and associated power supplies; and illumination and lighting. He is the president of the Electrical Engineering, Electronics and Optoelectronics section of the French National Council of Universities. He is the director of the “Light & Matter” research group at LAPLACE, which enrolls 20 researchers. In December 2006, he won the 1st Award of the International Electrotechnical Committee (IEC) Centenary Challenge for his work on normalization for urban lighting systems (in conjunction with IEEE, IET, and the Observer). In 2009, he won the Energy Globe Award for France and he obtained the Fresnel Medal from the French Illuminating Engineering Society. In 2011, he was named Professor Honoris Causa at Saint Petersburg State University (Russian Federation), and he was president-elect for the IEEE Industrial Application Society for the period 2017–18. He coordinated several large EU projects such as Erasmus Mundus NESSIE Project and INTERREG SUDOE [email protected]

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Research article
Published: 08 July 2021 in OCL
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Biomass and photosynthetic pigments production of cyanobacteria, in particular Spirulina (Arthrospira platensis), depend on light intensity. Production cost of Spirulina cultivation in photobioreactor illuminated with LED is strongly related to light cost. This work is aimed to evaluate the effects of light intensity and photoperiod on the energy efficiency of biomass and pigment production of Spirulina platensis UTEX 1926. Cultures illuminated with white light-emitting diodes (LED) were carried out in batch mode cultivation. Three lighting scenarios with different light intensities were tested: two with a constant light intensity at 80 and 160 μmol · m−2 · s−1 and one with modulated light intensity. Concerning photoperiod, three cycles of light:dark (h:h) (24:00, 20:04 and 16:08) were studied under light intensity at 160 μmol · m−2 · s−1. Concerning Spirulina biomass and pigment production (phycocyanin, chlorophyll and carotenoids), it is found that the lower intensity tested allows a substantial increase of the process energy efficiency. Concerning the influence of the photoperiod, it has been found that the longer the off time is (up to 08 h 00 a day), the higher is the energy efficiency for Spirulina biomass as well as for pigmentary production.

ACS Style

N’Goran Urbain Florent Niangoran; David Buso; Georges Zissis; Thomas Prudhomme. Influence of light intensity and photoperiod on energy efficiency of biomass and pigment production of Spirulina (Arthrospira platensis). OCL 2021, 28, 37 .

AMA Style

N’Goran Urbain Florent Niangoran, David Buso, Georges Zissis, Thomas Prudhomme. Influence of light intensity and photoperiod on energy efficiency of biomass and pigment production of Spirulina (Arthrospira platensis). OCL. 2021; 28 ():37.

Chicago/Turabian Style

N’Goran Urbain Florent Niangoran; David Buso; Georges Zissis; Thomas Prudhomme. 2021. "Influence of light intensity and photoperiod on energy efficiency of biomass and pigment production of Spirulina (Arthrospira platensis)." OCL 28, no. : 37.

Journal article
Published: 13 April 2021 in Sustainability
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We report a methodological approach for simulating luminary output radiation, which is achieved by mixing light-emitting diodes (LEDs) in order to match any plant absorption spectrum. Various recorded narrow-band LED spectra of different colors were first characterized and then fitted with a multi-Gaussian model. An optimizing procedure computed the optimal weighting of the relevant parameters so as to minimize the discrepancy between the combined spectrum and the reference target curve. The particle swarm optimization (PSO) method was applied because it is the most suitable technique for mono-objective situations. Within the useful spectral interval, the worst relative standard deviation between the optimized curve and recorded LED spectral power distribution (SPD) was 3.4%. When combining different LED types, the simulated light output showed that we could limit ourselves to selecting only five colored sources. This work will help us to design an optimized 200 W laboratory luminaire with a pulse-width switched-mode power supply.

ACS Style

Latifa Bachouch; Neermalsing Sewraj; Pascal Dupuis; Laurent Canale; Georges Zissis; Lotfi Bouslimi; Lilia El Amraoui. An Approach for Designing Mixed Light-Emitting Diodes to Match Greenhouse Plant Absorption Spectra. Sustainability 2021, 13, 4329 .

AMA Style

Latifa Bachouch, Neermalsing Sewraj, Pascal Dupuis, Laurent Canale, Georges Zissis, Lotfi Bouslimi, Lilia El Amraoui. An Approach for Designing Mixed Light-Emitting Diodes to Match Greenhouse Plant Absorption Spectra. Sustainability. 2021; 13 (8):4329.

Chicago/Turabian Style

Latifa Bachouch; Neermalsing Sewraj; Pascal Dupuis; Laurent Canale; Georges Zissis; Lotfi Bouslimi; Lilia El Amraoui. 2021. "An Approach for Designing Mixed Light-Emitting Diodes to Match Greenhouse Plant Absorption Spectra." Sustainability 13, no. 8: 4329.

Journal article
Published: 03 March 2021 in Sustainability
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Nepal houses many traditional and cultural sites rich in historical cultural diversity. These sites are also economically important to the nation. These monuments show the culture and the living beliefs of the communities; hence, people from all over the world are attracted to such place to observe the beauty and to feel the spirit and the conservational perspectives behind these articulated edifices. In today’s context, artificial light is a basic necessity for human activities and has been used in various applications: one such application being night-time illumination of historical sites and monuments. Most of the historic monuments in Nepal were constructed during the 15th to 18th century and are designed to incorporate oil-based wick lamp as the light source. Recently with the availability of modern luminaires and lack of technical expertise and scientific approach, most of the historic sites are being filled up with uneven, exaggerated, and inappropriate illumination. This inappropriate illumination practice may lead to negative consequences that may create disturbance to human and the surrounding environment. Scope of this paper is to identify the special needs for illuminating cultural and heritage sites with Pagoda-style architecture and introduce a methodology for a case study in Nepal. As a first step, this paper analyzes lighting malpractices in the temples of Nepal at different geographical locations and cultural values. As a next step, a prototype LED luminaire that enhances the unique type of architecture of Nepalese heritage sites was built, installed, and demonstrated in one of the temples. The work presents the design process of the lighting system and the results of a new lighting installation. The study also discusses possible problems that may arise while designing lighting for cultural and heritage site and provides recommendations on considerations to be taken during the design.

ACS Style

Diwakar Bista; Aayush Bista; Ashish Shrestha; Lambros Doulos; Pramod Bhusal; Georges Zissis; Frangiskos Topalis; Bhupendra Chhetri. Lighting for Cultural and Heritage Site: An Innovative Approach for Lighting in the Distinct Pagoda-Style Architecture of Nepal. Sustainability 2021, 13, 2720 .

AMA Style

Diwakar Bista, Aayush Bista, Ashish Shrestha, Lambros Doulos, Pramod Bhusal, Georges Zissis, Frangiskos Topalis, Bhupendra Chhetri. Lighting for Cultural and Heritage Site: An Innovative Approach for Lighting in the Distinct Pagoda-Style Architecture of Nepal. Sustainability. 2021; 13 (5):2720.

Chicago/Turabian Style

Diwakar Bista; Aayush Bista; Ashish Shrestha; Lambros Doulos; Pramod Bhusal; Georges Zissis; Frangiskos Topalis; Bhupendra Chhetri. 2021. "Lighting for Cultural and Heritage Site: An Innovative Approach for Lighting in the Distinct Pagoda-Style Architecture of Nepal." Sustainability 13, no. 5: 2720.

Journal article
Published: 12 October 2020 in IEEE Industry Applications Magazine
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ACS Style

Georges Zissis. Electrical Motors: An Electrical Engineering Foundation [President's Message]. IEEE Industry Applications Magazine 2020, 26, 5 -6.

AMA Style

Georges Zissis. Electrical Motors: An Electrical Engineering Foundation [President's Message]. IEEE Industry Applications Magazine. 2020; 26 (6):5-6.

Chicago/Turabian Style

Georges Zissis. 2020. "Electrical Motors: An Electrical Engineering Foundation [President's Message]." IEEE Industry Applications Magazine 26, no. 6: 5-6.

Conference paper
Published: 24 September 2020 in 2020 Fifth Junior Conference on Lighting (Lighting)
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The system under calibration has been previously characterized in photopic conditions. Due to increased interests in mesopic conditions, it was adapted to be usable in such an environment. Preliminary tests raised concerns about the stability of the generated stimulus. This paper retraces the steps which were consequently applied to fully capture, analyze and comprehend the source of observed stimulus instabilities. Through statistical analysis of the numerical results, some hypotheses were dismissed. The purpose of this paper is to expose a rigorous methodology in order to establish a well-controlled experimental environment.

ACS Style

Pascal Dupuis; Leos Kukacka; Laurent Canale; Michal Vik; Ales Richter; Georges Zissis. Calibration of a Brightness Matching Experiment setup in Mesopic and Scotopic Conditions. 2020 Fifth Junior Conference on Lighting (Lighting) 2020, 1 -6.

AMA Style

Pascal Dupuis, Leos Kukacka, Laurent Canale, Michal Vik, Ales Richter, Georges Zissis. Calibration of a Brightness Matching Experiment setup in Mesopic and Scotopic Conditions. 2020 Fifth Junior Conference on Lighting (Lighting). 2020; ():1-6.

Chicago/Turabian Style

Pascal Dupuis; Leos Kukacka; Laurent Canale; Michal Vik; Ales Richter; Georges Zissis. 2020. "Calibration of a Brightness Matching Experiment setup in Mesopic and Scotopic Conditions." 2020 Fifth Junior Conference on Lighting (Lighting) , no. : 1-6.

Conference paper
Published: 24 September 2020 in 2020 Fifth Junior Conference on Lighting (Lighting)
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The luminance degradation studies of OLEDs light sources under thermal and electrical stress conditions are normally achieved in order to estimate the OLEDs lifetime. In this study, the colorimetric parameters have been measured and calculated at different durations to understand the behaviour of OLED’s spectral distribution power over time. The spectral quantities of the studied OLEDs were measured using a MINOLTA-CS-1000 spectroradiometer, these measurement were treated afterwards in the “ANSI-IES TM-30-18 Basic Calculation Excel Tool”. Results shows that not all the OLED colorimetric parameters know a deterioration in terms of visual comfort when submitted to stress conditions.

ACS Style

Oussama Ben Abdellah; Andrea Al Haddad; Mustapha El Halaoui; Pascal Dupuis; Laurent Canale; Adel Asselman; Georges Zissis. Colorimetric Characterizations of Large Area White OLEDs Under Thermal And Electrical Stress Using TM-30-18 Method. 2020 Fifth Junior Conference on Lighting (Lighting) 2020, 1 -6.

AMA Style

Oussama Ben Abdellah, Andrea Al Haddad, Mustapha El Halaoui, Pascal Dupuis, Laurent Canale, Adel Asselman, Georges Zissis. Colorimetric Characterizations of Large Area White OLEDs Under Thermal And Electrical Stress Using TM-30-18 Method. 2020 Fifth Junior Conference on Lighting (Lighting). 2020; ():1-6.

Chicago/Turabian Style

Oussama Ben Abdellah; Andrea Al Haddad; Mustapha El Halaoui; Pascal Dupuis; Laurent Canale; Adel Asselman; Georges Zissis. 2020. "Colorimetric Characterizations of Large Area White OLEDs Under Thermal And Electrical Stress Using TM-30-18 Method." 2020 Fifth Junior Conference on Lighting (Lighting) , no. : 1-6.

Research review
Published: 28 August 2020 in Color Research & Application
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The use of color and lighting as factors for adapting the housing of the elderly is tending to develop, in response to demographic data on the aging of the population and its impact on lifestyles. Adapting the environment for those over 60 years has become a national issue for public policy. So this article takes stock of the studies carried out on this issue. We have to review all the literature devoted to this subject, focusing on research products dealing with the color and light interaction in the indoor environment of seniors.

ACS Style

Estelle Guerry; Céline Caumon; Elodie Bécheras; Georges Zissis. Influence of chromatic and lighting on the visual environment of the elderly: A critical literature review. Color Research & Application 2020, 46, 117 -124.

AMA Style

Estelle Guerry, Céline Caumon, Elodie Bécheras, Georges Zissis. Influence of chromatic and lighting on the visual environment of the elderly: A critical literature review. Color Research & Application. 2020; 46 (1):117-124.

Chicago/Turabian Style

Estelle Guerry; Céline Caumon; Elodie Bécheras; Georges Zissis. 2020. "Influence of chromatic and lighting on the visual environment of the elderly: A critical literature review." Color Research & Application 46, no. 1: 117-124.

Research article
Published: 10 August 2020 in Lighting Research & Technology
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ACS Style

Kevin Bertin; Georges Zissis; Marc Mequignon. Opinion: Lessons learned from life cycle assessments. Lighting Research & Technology 2020, 52, 582 -582.

AMA Style

Kevin Bertin, Georges Zissis, Marc Mequignon. Opinion: Lessons learned from life cycle assessments. Lighting Research & Technology. 2020; 52 (5):582-582.

Chicago/Turabian Style

Kevin Bertin; Georges Zissis; Marc Mequignon. 2020. "Opinion: Lessons learned from life cycle assessments." Lighting Research & Technology 52, no. 5: 582-582.

Journal article
Published: 10 June 2020 in IEEE Industry Applications Magazine
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ACS Style

Georges Zissis. Power Distribution Systems: An Old Business With Modern Challenges [President's Message]. IEEE Industry Applications Magazine 2020, 26, 5 -6.

AMA Style

Georges Zissis. Power Distribution Systems: An Old Business With Modern Challenges [President's Message]. IEEE Industry Applications Magazine. 2020; 26 (4):5-6.

Chicago/Turabian Style

Georges Zissis. 2020. "Power Distribution Systems: An Old Business With Modern Challenges [President's Message]." IEEE Industry Applications Magazine 26, no. 4: 5-6.

Editorial
Published: 03 June 2020 in Sustainability
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Human beings’ poor night vision and primitive fear of the dark are reflected in an imperative need to use artificial light to illuminate their environment. Outdoor illumination undoubtedly contributes to the enhancement of practical opportunities for social and economic developments. Considered as a necessity, a means of security, and an attraction or valorization, city lighting growth has been literally exponential in the last half century. Beyond the financial and energy resources that it absorbs, the artificial lighting of urban spaces overflows its objective by polluting our nights to the point that, in our modern megacities, the stars disappear. Apart from the fact that stars are no longer visible, the scientific community is increasingly interested in the direct and indirect impacts of artificial lighting on biodiversity. In parallel, some studies have shown recently that stray light may have direct or indirect effects on human health and mood. The scope of this Special Issue, dedicated to the memory of Prof. Abraham Haim and Dr. Thomas Posch, is to put together a series of high-level papers treating light pollution in a holistic manner that goes from technological advances to policies, passing through impacts on biotopes and human health. Beyond its evident scientific interest, this Special Issue is also contributing to awareness raising, aimed at decision- and policy-makers.

ACS Style

Georges Zissis. Sustainable Lighting and Light Pollution: A Critical Issue for the Present Generation, a Challenge to the Future. Sustainability 2020, 12, 4552 .

AMA Style

Georges Zissis. Sustainable Lighting and Light Pollution: A Critical Issue for the Present Generation, a Challenge to the Future. Sustainability. 2020; 12 (11):4552.

Chicago/Turabian Style

Georges Zissis. 2020. "Sustainable Lighting and Light Pollution: A Critical Issue for the Present Generation, a Challenge to the Future." Sustainability 12, no. 11: 4552.

Journal article
Published: 02 June 2020 in IEEE Transactions on Plasma Science
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Inductively coupled plasma of Mercury-Argon composition was investigated using a numerical simulation based on finite elements method at low pressure (6 m torr of Hg and 300 m torr of Ar). A self-consistent model working at a frequency of 250 kHz was developed using the plasma module in Comsol Multiphysics for studying the discharge phenomena. The 3-D plasma model gives a description of the influence of some parameters that characterize the discharge such as the electron density and electron temperature for various inputs' current and frequency. The purpose of this article is to obtain the optimal operating conditions of the discharge and to show the veracity of the 3-D model taking into account some assumption used to simplify the model. The performance of the electrodeless fluorescent lamps can be depicted, which will contribute to a further optimization of the RF inductions' lamps to reduce the energy consumption.

ACS Style

Ahlem Ben Halima; Hichem Helali; Kamel Charrada; Georges Zissis. Influence of the Variation of Current and Frequency on the Discharge’s Parameters. IEEE Transactions on Plasma Science 2020, 48, 2042 -2049.

AMA Style

Ahlem Ben Halima, Hichem Helali, Kamel Charrada, Georges Zissis. Influence of the Variation of Current and Frequency on the Discharge’s Parameters. IEEE Transactions on Plasma Science. 2020; 48 (6):2042-2049.

Chicago/Turabian Style

Ahlem Ben Halima; Hichem Helali; Kamel Charrada; Georges Zissis. 2020. "Influence of the Variation of Current and Frequency on the Discharge’s Parameters." IEEE Transactions on Plasma Science 48, no. 6: 2042-2049.

Conference paper
Published: 01 June 2020 in 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)
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In this paper a tunable Light Emitting Diodes' (LEDs) spectrum is proposed to match the plant's spectrum based on the relative quantum efficiency (RQE), proposed by McCree as a reference curve. Various LED spectra with different peak wavelengths are combined into a single one, in order to match the reference target spectrum. Based on optical and electrical experiments, nearly monochromatic LED spectra are measured. A multi-Gaussian function is adopted in order to model the best fitting of the different LED's spectrum. Three different kinds of LED combinations are proposed in order to achieve the optimal spectrum for plants. MATLAB simulation is used to show the matching of LEDs using the proposed LED combinations.

ACS Style

Latifa Bachouch; Pascal Dupuis; Neermalsing Sewraj; Laurent Canale; Georges Zissis; Lotfi Bouslimi; Lilia El Amraoui. Tunable multiple-LEDs combination spectrum for plants based on McCree PAR spectrum. 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) 2020, 1 -6.

AMA Style

Latifa Bachouch, Pascal Dupuis, Neermalsing Sewraj, Laurent Canale, Georges Zissis, Lotfi Bouslimi, Lilia El Amraoui. Tunable multiple-LEDs combination spectrum for plants based on McCree PAR spectrum. 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe). 2020; ():1-6.

Chicago/Turabian Style

Latifa Bachouch; Pascal Dupuis; Neermalsing Sewraj; Laurent Canale; Georges Zissis; Lotfi Bouslimi; Lilia El Amraoui. 2020. "Tunable multiple-LEDs combination spectrum for plants based on McCree PAR spectrum." 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) , no. : 1-6.

Conference paper
Published: 01 June 2020 in 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)
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Blue light effect on the human circadian cycle is not considered in a wide available lighting systems product on the market. The blue part of the white light received by a human act as a switch for the production of the melatonin by the pineal gland and can disrupt the sleeping period. The photopigment so called Melanopsin is responsible of transmitting the information “day or night” to the SCN (Suprachiasmatic Nucleus) and is sensitive to light at a bandwidth wavelength around 420 nm to 560 nm with a maximum sensitivity at 480 nm, meaning that a light source containing a significant proportion of blue light will stimulate this photopigment and then will suppress melatonin production. The link between the appearance of white light (warm, neutral or cold) and how it affects sleep in humans is generally misinterpreted. This is because at sunset, the spectral distribution of the sunlight contains a low amount of “melanopic light” (light spectrum for melatonin suppression for humans with a peak around 490 nm) and therefore does not cause a high melatonin suppression. Thus, it is commonly assumed that orange light does not affect the regulation of the biological clock. This applies only to sunlight, as well as, to blackbody emitters and not for all artificial lighting systems and in particular for LED (Light Emitting Diode) sources. Contrary to general accepted ideas, our results suggest that it is possible to create a combination of RGB LED components simulating warm white with high Melanopic Efficiency Factor (MEF), which involves the activation of melanopsin and, thus suppress the melatonin production.

ACS Style

Oussama B. Abdellah; Laurent Canale; Kevin Bertin; Adel Asselman; Georges Zissis. Optimization of RGB LEDs to Better Control the Melatonin Suppression for Humans. 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) 2020, 1 -5.

AMA Style

Oussama B. Abdellah, Laurent Canale, Kevin Bertin, Adel Asselman, Georges Zissis. Optimization of RGB LEDs to Better Control the Melatonin Suppression for Humans. 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe). 2020; ():1-5.

Chicago/Turabian Style

Oussama B. Abdellah; Laurent Canale; Kevin Bertin; Adel Asselman; Georges Zissis. 2020. "Optimization of RGB LEDs to Better Control the Melatonin Suppression for Humans." 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) , no. : 1-5.

Conference paper
Published: 01 June 2020 in 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)
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In this paper, a new concept of an optically transparent antenna integrated in OLED (Organic Light Emitting Diodes) is proposed for the 5G mobile applications. This proposed antenna is designed for future millimeter-wave (mm-Wave) 5G applications. The proposed optically transparent antenna is a network of micrometric hexagonal cells deposited on a glass substrate. By using this hexagonal geometry, we obtained a theoretical optical transparency of about 920%. This antenna can cover the 28 GHz band from 27.43 GHz to 28.88 GHz with a width of 1.45 GHz. The suggested design has a gain and directivity about 5.07 dB and 6.27 dBi at 28.27 GHz, respectively.

ACS Style

Mustapha El Halaoui; Laurent Canale; Adel Asselman; Georges Zissis. An Optically Transparent Antenna Integrated in OLED Light Source for 5G Applications. 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) 2020, 1 -5.

AMA Style

Mustapha El Halaoui, Laurent Canale, Adel Asselman, Georges Zissis. An Optically Transparent Antenna Integrated in OLED Light Source for 5G Applications. 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe). 2020; ():1-5.

Chicago/Turabian Style

Mustapha El Halaoui; Laurent Canale; Adel Asselman; Georges Zissis. 2020. "An Optically Transparent Antenna Integrated in OLED Light Source for 5G Applications." 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) , no. : 1-5.

Conference paper
Published: 01 June 2020 in 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)
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Diffuse reflectance spectroscopy (DRS) is a technique that illuminates the surface of the tissue and analyzes the spectrum of backscattered light, in which the signature of various biochemical species can be identified. This promising technique is established in this article for the non-invasive and in vivo characterization of the optical properties of tissues for diagnostic applications. We have introduced a new compact and inexpensive architecture for DRS based on the use of a multispectral image sensor and LEDs to obtain a diffuse reflectance signal in contact with the skin. For the proof of concept, a prototype device, involving a spectrometer coupled to an optical fiber, a microcontroller, a set of 8 LEDs and a computer, was developed, manufactured and set up. Diffuse reflectance profiles were acquired at 438.2 nm, 544.5 nm and 613.7 nm. Indeed, the spectrum of Mycobacterium ulcerans was established by this method at 256 nm and 365.2 nm. The results obtained confirm the potential of our approach for the quantitative characterization of the optical properties of tissues.

ACS Style

Didier K. Yable; Laurent Canale; Pascal Dupuis; Theodore Cisse Haba; Jeremie T. Zoueu; Georges Zissis. Characterization and Optical Early Diagnosis by Diffuse Reflectance Spectroscopy. 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) 2020, 1 -5.

AMA Style

Didier K. Yable, Laurent Canale, Pascal Dupuis, Theodore Cisse Haba, Jeremie T. Zoueu, Georges Zissis. Characterization and Optical Early Diagnosis by Diffuse Reflectance Spectroscopy. 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe). 2020; ():1-5.

Chicago/Turabian Style

Didier K. Yable; Laurent Canale; Pascal Dupuis; Theodore Cisse Haba; Jeremie T. Zoueu; Georges Zissis. 2020. "Characterization and Optical Early Diagnosis by Diffuse Reflectance Spectroscopy." 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) , no. : 1-5.

Conference paper
Published: 01 June 2020 in 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)
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From the Middle Age to the XIX century, different types of inks exist in Europe with a shade from black to brown. Black inks are usually linked to iron gall inks made from metal salt and vegetable tannins. Knowledge the exact composition of the ink without deterioration of the document is essential to provide information on geographical and temporal origins. Different non-destructive methods are studied to authenticate documents, to analyse inks and to establish their identity. In this paper, we propose to combine different methods to characterization various ink properties: Fourier Transform InfraRed and Raman spectroscopy for chemical composition, with Atomic Force Microscopy and numerical microscopy for surface morphology. These non-destructive analyses were applied on ink samples made with ancient recipes with and without Alum and on Ancient document.

ACS Style

Benoit Prochet; Manuel Lopes; Georges Zissis; Christina Villeneuve-Faure; Patricia Roger-Puyo; Marie-Elizabeth Boutroue. Non-destructive Characterisation of Inks by Spectroscopy and Surface Analyses. 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) 2020, 1 -5.

AMA Style

Benoit Prochet, Manuel Lopes, Georges Zissis, Christina Villeneuve-Faure, Patricia Roger-Puyo, Marie-Elizabeth Boutroue. Non-destructive Characterisation of Inks by Spectroscopy and Surface Analyses. 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe). 2020; ():1-5.

Chicago/Turabian Style

Benoit Prochet; Manuel Lopes; Georges Zissis; Christina Villeneuve-Faure; Patricia Roger-Puyo; Marie-Elizabeth Boutroue. 2020. "Non-destructive Characterisation of Inks by Spectroscopy and Surface Analyses." 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) , no. : 1-5.

Journal article
Published: 24 April 2020 in Diversity
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Artificial light at night is considered a major threat to biodiversity, especially for nocturnal species, as it reduces habitat availability, quality, and functionality. Since the recent evolution in light technologies in improving luminous efficacy, developed countries are experiencing a renewal of their lighting equipment that reaches its end-of-life, from conventional lighting technologies to light emitting diodes (LEDs). Despite potential cascading impacts of such a shift on nocturnal fauna, few studies have so far dealt with the impact of the renewal of street lighting by new technologies. Specifically, only one study, by Rowse et al.2016, examined the effects of switching from widely used low pressure sodium (LPS) lamps to LEDs, using bats as biological models. This study was based on a before-after-control-impact paired design (BACIP) at 12 pairs in the UK, each including one control and one experimental streetlight. If Rowse et al. 2016 showed no effect of switching to LEDs streetlights on bat activity, the effects of respective changes in light intensity and spectrum were not disentangled when testing switch effects. Here, we conduct a retrospective analysis of their data to include these covariates in statistical models with the aim of disentangling the relative effects of these light characteristics. Our re-analysis clearly indicates that the switches in spectrum and in intensity with replacement of LPS with LED lamps have significant additive and interactive effects, on bat activity. We also show that bat activity and buzz ratio decrease with increasing LED intensity while an opposite effect is observed with LPS lamps. Hence, the loss or the gain in bat activity when lamp types, i.e., spectrum, are switched strongly depends on the initial and new lamp intensities. Our results stress the need to consider simultaneously the effects of changes in the different lights characteristics when street lighting changes. Because switches from LPS to LED lamps can lead to an increase in light intensity, such technological changes may involve a reduction of bat activity in numerous cases, especially at high LED intensities. Since we are currently at an important crossroad in lighting management, we recommend to limit LED intensity and improve its spectral composition toward warmer colors to limit potential deleterious impacts on bat activity.

ACS Style

Christian Kerbiriou; Kévin Barré; Léa Mariton; Julie Pauwels; Georges Zissis; Alexandre Robert; Isabelle Le Viol. Switching LPS to LED Streetlight May Dramatically Reduce Activity and Foraging of Bats. Diversity 2020, 12, 165 .

AMA Style

Christian Kerbiriou, Kévin Barré, Léa Mariton, Julie Pauwels, Georges Zissis, Alexandre Robert, Isabelle Le Viol. Switching LPS to LED Streetlight May Dramatically Reduce Activity and Foraging of Bats. Diversity. 2020; 12 (4):165.

Chicago/Turabian Style

Christian Kerbiriou; Kévin Barré; Léa Mariton; Julie Pauwels; Georges Zissis; Alexandre Robert; Isabelle Le Viol. 2020. "Switching LPS to LED Streetlight May Dramatically Reduce Activity and Foraging of Bats." Diversity 12, no. 4: 165.

Journal article
Published: 08 April 2020 in IEEE Industry Applications Magazine
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ACS Style

Georges Zissis. Electrical Safety: A Challenge for All! [President's Message]. IEEE Industry Applications Magazine 2020, 26, 5 -6.

AMA Style

Georges Zissis. Electrical Safety: A Challenge for All! [President's Message]. IEEE Industry Applications Magazine. 2020; 26 (3):5-6.

Chicago/Turabian Style

Georges Zissis. 2020. "Electrical Safety: A Challenge for All! [President's Message]." IEEE Industry Applications Magazine 26, no. 3: 5-6.

Journal article
Published: 01 March 2020 in IEEE Industry Applications Magazine
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ACS Style

Georges Zissis. Industrial Automation: A Cornerstone Shaping Industry 4.0 [President's Message]. IEEE Industry Applications Magazine 2020, 26, 4 -66.

AMA Style

Georges Zissis. Industrial Automation: A Cornerstone Shaping Industry 4.0 [President's Message]. IEEE Industry Applications Magazine. 2020; 26 (2):4-66.

Chicago/Turabian Style

Georges Zissis. 2020. "Industrial Automation: A Cornerstone Shaping Industry 4.0 [President's Message]." IEEE Industry Applications Magazine 26, no. 2: 4-66.

Journal article
Published: 01 February 2020 in Issue 03-2021
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In the context of an aging population, it is important today to take into account the needs of our seniors, to help them better live their aging. The design of colour and lighting ambiance contributes in the practice of their daily activities in their living environment. This study postulates a protocol of good practices in terms of colour and lighting to design a visual environment adapted to the needs of these users. The protocol is based on a combination of chromatic and lighting expertise. Chromatic colour matching based on Natural Colour System tools is combined with a photometric survey to characterize the visual environment. These data make it possible to establish a protocol used to design new chromatic ranges applied to new environments or to evaluate the applicability of the existing ranges.

ACS Style

Estelle Guerry; Georges Zissis; Céline Caumon; Laurent Canale; Elodie Bécheras. Design and Survey of Lighting and Colour Ambience for a Suitable Elderly Environment. Issue 03-2021 2020, 79 -89.

AMA Style

Estelle Guerry, Georges Zissis, Céline Caumon, Laurent Canale, Elodie Bécheras. Design and Survey of Lighting and Colour Ambience for a Suitable Elderly Environment. Issue 03-2021. 2020; (01-2020):79-89.

Chicago/Turabian Style

Estelle Guerry; Georges Zissis; Céline Caumon; Laurent Canale; Elodie Bécheras. 2020. "Design and Survey of Lighting and Colour Ambience for a Suitable Elderly Environment." Issue 03-2021 , no. 01-2020: 79-89.