A Novel Manufacturing Chain for Low Cost 3D Textile Reinforced Polymer Composites

2014 ◽  
Vol 980 ◽  
pp. 230-234
Author(s):  
Ana Almansa ◽  
Monireh Fazeli ◽  
Benoit Laurent ◽  
Pere Padros ◽  
Marianne Hörlesberger
Keyword(s):  
Flexible Manufacturing ◽  
Large Scale ◽  
Low Cost ◽  
Composite Part ◽  
Hybrid Yarn ◽  
Reinforced Polymer ◽  
Novel Approach ◽  
End Products ◽  
The Individual ◽  
Manufacturing Chain

The project 3D-LightTrans aims to create a highly flexible manufacturing chain for the low cost production of integral large scale 3D textile reinforced polymer composite parts. In a novel approach, multi-material semi-finished fabrics made of hybrid yarn are formed to deep draped pre-fixed multi-layered and multifunctional 3D-textile pre-forms. These are then efficiently processed into the final composite part by thermoforming. This paper presents the results achieved by the project consortium during the last three years, including the development and optimization of the individual processes for prototype production, with a focus on two selected automotive end products, and the adaption of equipment for industrial scale manufacturing.

scholarly journals Low-Cost IoT Remote Sensor Mesh for Large-Scale Orchard Monitorization

2020 ◽  
Vol 9 (3) ◽  
pp. 44
Author(s):  
Leonor Varandas ◽  
João Faria ◽  
Pedro Gaspar ◽  
Martim Aguiar
Keyword(s):  
Real Time ◽  
Large Scale ◽  
Low Cost ◽  
Experimental Tests ◽  
Remote Measurement ◽  
Land Protection ◽  
Remote Monitoring System ◽  
Solar Powered ◽  
The Individual ◽  
System Nodes

Population growth and climate change lead agricultural cultures to face environmental degradation and rising of resistant diseases and pests. These conditions result in reduced product quality and increasing risk of harmful toxicity to human health. Thus, the prediction of the occurrence of diseases and pests and the consequent avoidance of the erroneous use of phytosanitary products will contribute to improving food quality and safety and environmental land protection. This study presents the design and construction of a low-cost IoT sensor mesh that enables the remote measurement of parameters of large-scale orchards. The developed remote monitoring system transmits all monitored data to a central node via LoRaWAN technology. To make the system nodes fully autonomous, the individual nodes were designed to be solar-powered and to require low energy consumption. To improve the user experience, a web interface and a mobile application were developed, which allow the monitored information to be viewed in real-time. Several experimental tests were performed in an olive orchard under different environmental conditions. The results indicate an adequate precision and reliability of the system and show that the system is fully adequate to be placed in remote orchards located at a considerable distance from networks, being able to provide real-time parameters monitoring of both tree and the surrounding environment.

scholarly journals Integrated bioprocess for conversion of gaseous substrates to liquids

2016 ◽  
Vol 113 (14) ◽  
pp. 3773-3778 ◽  
Author(s):  
Peng Hu ◽  
Sagar Chakraborty ◽  
Amit Kumar ◽  
Benjamin Woolston ◽  
Hongjuan Liu ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Synthesis Gas ◽  
Large Scale ◽  
Low Cost ◽  
Cost Effective ◽  
Integrated System ◽  
Biodiesel Production ◽  
Liquid Fuels ◽  
Acid Product ◽  
The Individual

In the quest for inexpensive feedstocks for the cost-effective production of liquid fuels, we have examined gaseous substrates that could be made available at low cost and sufficiently large scale for industrial fuel production. Here we introduce a new bioconversion scheme that effectively converts syngas, generated from gasification of coal, natural gas, or biomass, into lipids that can be used for biodiesel production. We present an integrated conversion method comprising a two-stage system. In the first stage, an anaerobic bioreactor converts mixtures of gases of CO2 and CO or H2 to acetic acid, using the anaerobic acetogen Moorella thermoacetica. The acetic acid product is fed as a substrate to a second bioreactor, where it is converted aerobically into lipids by an engineered oleaginous yeast, Yarrowia lipolytica. We first describe the process carried out in each reactor and then present an integrated system that produces microbial oil, using synthesis gas as input. The integrated continuous bench-scale reactor system produced 18 g/L of C16-C18 triacylglycerides directly from synthesis gas, with an overall productivity of 0.19 g⋅L−1⋅h−1 and a lipid content of 36%. Although suboptimal relative to the performance of the individual reactor components, the presented integrated system demonstrates the feasibility of substantial net fixation of carbon dioxide and conversion of gaseous feedstocks to lipids for biodiesel production. The system can be further optimized to approach the performance of its individual units so that it can be used for the economical conversion of waste gases from steel mills to valuable liquid fuels for transportation.

scholarly journals Designing a New Shuttle Service to Meet Large-Scale Instantaneous Peak Demands for Passenger Transportation in a Metropolitan Context: A Green, Low-Cost Mass Transport Option

2019 ◽  
Vol 11 (18) ◽  
pp. 5025 ◽  
Author(s):  
Zheng ◽  
Chen ◽  
Zhang ◽  
Yang
Keyword(s):  
Traffic Congestion ◽  
Large Scale ◽  
Clustering Algorithm ◽  
Low Cost ◽  
Routing Algorithm ◽  
Passenger Transportation ◽  
Rejection Mechanism ◽  
New Type ◽  
Hard Clustering ◽  
The Individual

Currently, the green, sustainable development of metropolises is hindered by problems caused by Large-scale Instantaneous Peak-demands for Passenger-transportation (LIPP), such as traffic congestion and air pollution. To mitigate these problems, we propose a new type of demand-responsive service as an alternative to inefficient “door-to-door” service. The proposed service is based on service units designed to aggregate passengers for shuttle service. To guarantee service quality and efficiency, a maximum passenger walking time constraint, a request rejection mechanism and a scheme for ensuring solution feasibility are considered. Through numerical experiments, we prove the following: (i) the proposed transport option exhibits better performance (by 40.37% for passengers and by 35.79% for operators) than the door-to-door transport option for solving real cases. (ii) By testing different datasets, we prove that the proposed service is more suitable for the request distributions that are spatiotemporally concentrated. (iii) Regarding the individual components of the proposed clustering-first, routing-second solution framework, the proposed soft clustering algorithm exhibits better performance than the classical hard clustering method (by 8%), and the proposed routing algorithm is 1.5 times more efficient than the commercial solution software GAMS.

Appropriate technologies for the future

1980 ◽  
Vol 209 (1174) ◽  
pp. 183-186 ◽  
Keyword(s):  
Food Production ◽  
Large Scale ◽  
Low Cost ◽  
Health Needs ◽  
Small Scale ◽  
Cost Of Energy ◽  
Prophylactic Measures ◽  
The Future ◽  
The Individual ◽  
The Third World

Crystal ball gazing is a hazardous occupation: the sharper the picture, the greater the possibility of error. In the future, appropriate technologies that will raise standards of health and diminish the prevalence of disease in the Third World must take cognizance of such factors as burgeoning population growth, impossibly high cost of energy sources, a widening gap between food requirements and food production, increasing urbanization, and inherent difficulties of control of disease vectors and water-borne diseases. The technologies that must be made available will be both large-scale and small-scale, low-cost and simple, improving life for the individual and the community, mediated by appropriately trained and adequately supervised polycompetent auxiliaries. The present reappraisal of health needs in the context of food (seeds, soils, irrigation, protection against loss of the harvested products) and of prevention of disease by appropriate prophylactic measures and its treatment, will necessitate hard thinking and greater cooperation between all concerned.

scholarly journals Facile Synthesis of Copper Oxide Nanoparticles via Electrospinning

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Abdullah Khalil ◽  
Mustapha Jouiad ◽  
Marwan Khraisheh ◽  
Raed Hashaikeh
Keyword(s):  
Copper Oxide ◽  
Large Scale ◽  
Low Cost ◽  
Copper Acetate ◽  
Electrospun Nanofibers ◽  
Copper Oxide Nanoparticles ◽  
One Dimensional ◽  
Cuo Nps ◽  
Novel Approach ◽  
Transmission Electron

A novel approach for synthesizing copper oxide (CuO) nanoparticles (NPs) through electrospinning is reported. The approach is based on producing rough and discontinuous electrospun nanofibers from a precursor based on copper acetate salt and polyvinyl alcohol (PVA) polymer. Selectively removing the polymeric phase from the fibers produced highly rough CuO nanofibers, which were composed of NPs that are weakly held together in a one-dimensional (1D) manner. Sonication in a suitable liquid under controlled conditions completely disintegrated the nanofibers into NPs, resulting in the formation of uniform CuO NPs suspension. Aberration corrected high resolution transmission electron microscope (HRTEM) showed that the obtained NPs are highly crystalline and nearly sphere-like with a diameter of 30 to 70 nm. Thus, electrospinning, which is a low cost and industrially scalable technique, can also be employed for economic and large scale synthesis of NPs.

scholarly journals Hydrothermally grown 1D ZnO nanostructures for rapid detection of NO2 gas

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
P. R. Godse ◽  
A. T. Mane ◽  
Y. H. Navale ◽  
S. T. Navale ◽  
R. N. Mulik ◽  
...  
Keyword(s):  
Response Time ◽  
Recovery Time ◽  
Large Scale ◽  
Gas Sensing ◽  
Low Cost ◽  
Zno Nanostructures ◽  
Novel Approach ◽  
Exposure Limit ◽  
Controlled Morphology ◽  
Template Free

AbstractThe present paper reports novel approach of surfactant and template free aqueous hydrothermal growth of 1D ZnO nanostructures, which facilitates the generation of large scale, low cost, and moderate working temperature films with controlled morphology for NO2 gas sensor application. Gas sensing properties of 1D ZnO nanostructures were studied at various temperatures for different reducing and oxidizing gases. As-fabricated by 1D ZnO nanostructures showed the highest sensor response of 11,791% with rapid response time of 9 s and recovery time of 220 s towards 100 ppm NO2. Moreover, for 5 ppm NO2 concentration, sensor showed a significant response of 70% with an response time of 16 s and recovery time of 200 s. The sensor shows good continuous performance in terms of response, response time, and recovery time, indicating that the sensor is highly reproducible and stable as well. This study successfully employed 1D ZnO nanostructures based NO2 sensing within the higher (100 ppm) and lower exposure limit (5 ppm) of NO2 gas.

Reducing Complexity and Achieving Higher Energy Efficiency in Wireless Sensor Network Communications by Using High Altitude Platforms

2012 ◽  
pp. 329-338
Author(s):  
Zhe Yang ◽  
Abbas Mohammed
Keyword(s):  
Energy Efficiency ◽  
High Altitude ◽  
Large Scale ◽  
Low Cost ◽  
High Energy ◽  
Wireless Sensor ◽  
Novel Approach ◽  
High Altitude Platforms ◽  
Line Of Sight Propagation ◽  
Communication Links

In this chapter, a novel approach is explored to employ high-altitude platforms (HAPs) to remove the relaying burden and/or de-centralize coordination from wireless sensor networks (WSNs). The approach can reduce the complexity and achieve energy efficiency in communications of WSNs, whereby applications require a large-scale deployment of low-power and low-cost sustainable sensors. The authors review and discuss the main constraints and problems of energy consumptions and coordination in WSNs. The use of HAPs in WSNs provides favorable communication links via predominantly line of sight propagation due to their unique position and achieves benefits of reduced complexity and high energy efficiency, which are crucial for WSN operations.

A Novel Approach to Large Scale Applications of Superconductivity: The Concept of an All Superconducting Mini Power Plant

2003 ◽  
Vol 17 (18n20) ◽  
pp. 3717-3721
Author(s):  
Istvan Vajda
Keyword(s):  
Energy Efficient ◽  
Power Plants ◽  
Large Scale ◽  
Renewable Energy Sources ◽  
Local Power ◽  
Power Devices ◽  
Power Stations ◽  
Environmental Friendly ◽  
Novel Approach ◽  
The Individual

The widespread use of energy-efficient, environmental-friendly and secure local power stations, or mini power plants (MPPs) has become a world-wide trend. Disperse power generation has been developed against centralized generation in central power stations/plants with a particular view on the utilization of renewable energy sources. Exceeding the stage of the development of individual superconducting power devices (SPDs), more and more concern is being focused around all superconducting (AS) integrated systems (ASIS) consisting of a set of individual SPDs being integrated into one system with a common cryogenic environment. Such a system possesses with substantial additional benefits compared to and exceeding those of the individual SPDs. The concept of AS MPP model of the order of 10 kW developed by the author's team is presented in this paper.

A novel synthesis of carbon nanotubes directly from an indecomposable solid carbon source for electrochemical applications

2016 ◽  
Vol 4 (6) ◽  
pp. 2137-2146 ◽  
Author(s):  
Zhi Zhang ◽  
Shichun Mu ◽  
Bowei Zhang ◽  
Lu Tao ◽  
Shifei Huang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Large Scale ◽  
Low Cost ◽  
Chemical Vapor ◽  
Scale Production ◽  
Solid Carbon ◽  
Novel Approach ◽  
Large Scale Production ◽  
Solid Carbon Source ◽  
Synthesis Of Carbon Nanotubes

Carbon nanotubes (CNTs) are firstly synthesized through a novel low cost self-vaporized chemical vapor deposition (SCVD) technique, which represents a novel approach toward large scale production of CNTs.

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