scholarly journals A New Generation Solar Photovoltaic Integrated System for Elevator Door Operation

2020 ◽  
Vol 13 (1) ◽  
pp. 1-12
Author(s):  
Bidrohi Bhattacharjee ◽  
Pradip Kumar Sadhu ◽  
Ankur Ganguly ◽  
Ashok Kumar Naskar
Keyword(s):  
Integrated System ◽  
Solar Photovoltaic ◽  
Elevator Door ◽  
New Generation

scholarly journals INTEGRATION OF KINECT AND LOW-COST GNSS FOR OUTDOOR NAVIGATION

2016 ◽  
Vol XLI-B5 ◽  
pp. 565-572 ◽  
Author(s):  
D. Pagliaria ◽  
L. Pinto ◽  
M. Reguzzoni ◽  
L. Rossi
Keyword(s):  
Low Cost ◽  
Integrated System ◽  
Outdoor Environment ◽  
Microsoft Kinect ◽  
Kinect Sensor ◽  
Gnss Receiver ◽  
Lighting Conditions ◽  
Satellite Visibility ◽  
New Generation ◽  
Microsoft Kinect Sensor

Since its launch on the market, Microsoft Kinect sensor has represented a great revolution in the field of low cost navigation, especially for indoor robotic applications. In fact, this system is endowed with a depth camera, as well as a visual RGB camera, at a cost of about 200$. The characteristics and the potentiality of the Kinect sensor have been widely studied for indoor applications. The second generation of this sensor has been announced to be capable of acquiring data even outdoors, under direct sunlight. The task of navigating passing from an indoor to an outdoor environment (and vice versa) is very demanding because the sensors that work properly in one environment are typically unsuitable in the other one. In this sense the Kinect could represent an interesting device allowing bridging the navigation solution between outdoor and indoor. In this work the accuracy and the field of application of the new generation of Kinect sensor have been tested outdoor, considering different lighting conditions and the reflective properties of the emitted ray on different materials. Moreover, an integrated system with a low cost GNSS receiver has been studied, with the aim of taking advantage of the GNSS positioning when the satellite visibility conditions are good enough. A kinematic test has been performed outdoor by using a Kinect sensor and a GNSS receiver and it is here presented.

scholarly journals Socio-economic Study to Improve the Electrical Sustainability of the North Tower of Instituto Superior Técnico

2020 ◽  
Vol 12 (5) ◽  
pp. 1923 ◽  
Author(s):  
Beatriz Durão ◽  
João Paulo N. Torres ◽  
Carlos A. F. Fernandes ◽  
Ricardo A. Marques Lameirinhas
Keyword(s):  
Transmission Lines ◽  
Crystalline Silicon ◽  
Storage System ◽  
Energy Storage System ◽  
Integrated System ◽  
Social Needs ◽  
Photovoltaic System ◽  
Solar Photovoltaic ◽  
Solar Panels ◽  
The North

In this paper, an autonomous photovoltaic system is going to be designed for the North Tower of Instituto Superior Técnico through the application of solar panels on its windows, using them as producers of electricity based on solar energy. The main objectives of this paper are: (1) to make the building energetically autonomous, using an integrated system of solar photovoltaic technology; (2) check the system behaviour and comment on possible system impacts on the user’s lifestyle. Two solutions are going to be proposed to cover/substitute the windows of the Tower, one using amorphous silicon panels and the other using crystalline silicon panels. Taking into account this type of solution, it is possible to recognize that there are positive impacts, such as the reduction of transmission lines/grids or the decentralisation of energy supplies. However, there are also disadvantages such as the need to have an energy storage system to guarantee the continuous supply. This study, for this building in particular, shows that organic photovoltaic cells have enormous advantages in the future in terms of our environment and social needs, but they do not yet produce the energy needed to meet today’s needs. Both solutions present a return estimative time of seven years, with an initial investment of approximately two million euros, but the produced energy will not be enough to create an off-grid system.

scholarly journals A Study on the Characteristics of the Concentrated Solar Photovoltaic/thermal Integrated System

2021 ◽  
Vol 2076 (1) ◽  
pp. 012021
Author(s):  
Dengxin Ai ◽  
Guilin Wang ◽  
Ye Li ◽  
Zhiyong Gan
Keyword(s):  
Experimental Data ◽  
Polycrystalline Silicon ◽  
Integrated System ◽  
Energy Utilization ◽  
Solar Photovoltaic ◽  
Fixed Temperature ◽  
Electric System ◽  
Heat Efficiency ◽  
Solar Energy Utilization ◽  
Outdoor Experiments

Abstract This paper mainly introduces a comprehensive solar energy utilization system with low-CPC and polycrystalline silicon solar photovoltaic components. Outdoor experiments have been made to test the electrical efficiency, heat efficiency and their changes of the system with fixed temperature of outlet water and different sunshine conditions. Besides, this paper also compares the effects of outlet water at various temperatures on the efficiency of the whole system as well as the temperatures and flow rate responses with different PID parameters. Through analysis of these experimental data, the most desirable temperature of outlet water and PID parameters have been obtained in CPC-PV/T Hybrid Thermal-electric System, thus providing references for relevant experimental research.

scholarly journals Design of Biologically Active Surfaces Based on Functionalized Polysulfones by Electrospinning

Proceedings ◽  
2019 ◽  
Vol 41 (1) ◽  
pp. 35 ◽  
Author(s):  
Anca Filimon ◽  
Niculae Olaru ◽  
Florica Doroftei ◽  
Cristian Logigan ◽  
Simona Dunca
Keyword(s):  
Biomedical Applications ◽  
Polymeric Materials ◽  
Integrated System ◽  
Biologically Active ◽  
Gram Negative ◽  
Cellular Behavior ◽  
Homogeneous Solutions ◽  
Gram Positive Bacteria ◽  
Polymeric Scaffolds ◽  
New Generation

The development of a new generation of electrospun polymeric materials designed to accomplish multi-performance in a bioinspired integrated system represents the main goal of the present research. Polysulfones promise to become such nanosized fibrous structures with attractive properties associated with biomedical applications by the development of a new “construct”. Therefore, the homogeneous solutions of the functionalized polysulfones with quaternary ammonium groups (PSFQ) dissolved in various solvents were processed by electrospinning to create polymeric scaffolds that can modulate cellular behavior. Additionally, the antibacterial activity of PSFQ fibers against Gram-negative and Gram-positive bacteria has indicated the potential of these scaffolds for biomedical use.

Modeling and Analysis of Solar PV Power System for Greenhouse Application With Electrolyser Fuel Cell Back Up

2009 ◽  
Author(s):  
A. Ganguly ◽  
S. Ghosh ◽  
D. Misra
Keyword(s):  
Fuel Cell ◽  
Solar Energy ◽  
Power System ◽  
Indian Subcontinent ◽  
Integrated System ◽  
Photovoltaic System ◽  
Photovoltaic Module ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Viable Option

The application of greenhouse technology for cultivation of flowers, vegetables and horticultural plants is rapidly expanding worldwide. But at present the requirement of grid connectivity imposes a restriction on the emanation of this technology to areas which are remote. In a developing country like India, where a significant number of villages are yet to be connected to any national or regional grid, this restriction assumes considerable significance. Due to abundant availability of solar energy in the plains of Indian subcontinent, its use in powering a greenhouse provides for a viable option. But due to the intermittent availability of solar energy, the provision of some form of back up arrangement to power the greenhouse becomes necessary. In the present paper a model for the power system of a greenhouse powered by solar photovoltaic system is presented and the back up arrangement is provided through a combination of electrolyser fuel cell system. The presented model shows that this integrated system comprising of greenhouse-solar photovoltaic module-electrolyser & fuel cell will provide a viable option for the design of stand alone greenhouses.

scholarly journals INTEGRATION OF KINECT AND LOW-COST GNSS FOR OUTDOOR NAVIGATION

2016 ◽  
Vol XLI-B5 ◽  
pp. 565-572 ◽  
Author(s):  
D. Pagliari ◽  
L. Pinto ◽  
M. Reguzzoni ◽  
L. Rossi
Keyword(s):  
Low Cost ◽  
Integrated System ◽  
Outdoor Environment ◽  
Microsoft Kinect ◽  
Kinect Sensor ◽  
Gnss Receiver ◽  
Lighting Conditions ◽  
Satellite Visibility ◽  
New Generation ◽  
Microsoft Kinect Sensor

Since its launch on the market, Microsoft Kinect sensor has represented a great revolution in the field of low cost navigation, especially for indoor robotic applications. In fact, this system is endowed with a depth camera, as well as a visual RGB camera, at a cost of about 200$. The characteristics and the potentiality of the Kinect sensor have been widely studied for indoor applications. The second generation of this sensor has been announced to be capable of acquiring data even outdoors, under direct sunlight. The task of navigating passing from an indoor to an outdoor environment (and vice versa) is very demanding because the sensors that work properly in one environment are typically unsuitable in the other one. In this sense the Kinect could represent an interesting device allowing bridging the navigation solution between outdoor and indoor. In this work the accuracy and the field of application of the new generation of Kinect sensor have been tested outdoor, considering different lighting conditions and the reflective properties of the emitted ray on different materials. Moreover, an integrated system with a low cost GNSS receiver has been studied, with the aim of taking advantage of the GNSS positioning when the satellite visibility conditions are good enough. A kinematic test has been performed outdoor by using a Kinect sensor and a GNSS receiver and it is here presented.

Finding the Right Problems: Some HREM Applications to Interfaces

1984 ◽  
Vol 42 ◽  
pp. 376-379
Author(s):  
D. Cherns
Keyword(s):  
Grain Boundaries ◽  
High Resolution Electron Microscopy ◽  
Boundary Structure ◽  
Atomic Structures ◽  
Grain Boundary Structure ◽  
Resolution Electron ◽  
Point To Point ◽  
The Right ◽  
New Generation ◽  
Better Than

The use of high resolution electron microscopy (HREM) to determine the atomic structure of grain boundaries and interfaces is a topic of great current interest. Grain boundary structure has been considered for many years as central to an understanding of the mechanical and transport properties of materials. Some more recent attention has focussed on the atomic structures of metalsemiconductor interfaces which are believed to control electrical properties of contacts. The atomic structures of interfaces in semiconductor or metal multilayers is an area of growing interest for understanding the unusual electrical or mechanical properties which these new materials possess. However, although the point-to-point resolutions of currently available HREMs, ∼2-3Å, appear sufficient to solve many of these problems, few atomic models of grain boundaries and interfaces have been derived. Moreover, with a new generation of 300-400kV instruments promising resolutions in the 1.6-2.0 Å range, and resolutions better than 1.5Å expected from specialist instruments, it is an appropriate time to consider the usefulness of HREM for interface studies.

Total etch dentin bonding systems: scanning electron microscopy of the resin-dentin hybrid layer

1992 ◽  
Vol 50 (2) ◽  
pp. 1092-1093
Author(s):  
Jorge Perdigao
Keyword(s):  
Composite Resin ◽  
Mechanical Interlocking ◽  
Hybrid Layer ◽  
Agent Based ◽  
Dentin Bonding ◽  
Acid Agent ◽  
Bond Strengths ◽  
Main Component ◽  
Bonding Systems ◽  
New Generation

In 1955, Buonocore introduced the etching of enamel with phosphoric acid. Bonding to enamel was created by mechanical interlocking of resin tags with enamel prisms. Enamel is an inert tissue whose main component is hydroxyapatite (98% by weight). Conversely, dentin is a wet living tissue crossed by tubules containing cellular extensions of the dental pulp. Dentin consists of 18% of organic material, primarily collagen. Several generations of dentin bonding systems (DBS) have been studied in the last 20 years. The dentin bond strengths associated with these DBS have been constantly lower than the enamel bond strengths. Recently, a new generation of DBS has been described. They are applied in three steps: an acid agent on enamel and dentin (total etch technique), two mixed primers and a bonding agent based on a methacrylate resin. They are supposed to bond composite resin to wet dentin through dentin organic component, forming a peculiar blended structure that is part tooth and part resin: the hybrid layer.

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