Design A Low-cost PV Performance Ratio Data Monitoring

2021 ◽  
Author(s):  
Yuli Astriani ◽  
Dionysius A. Renata ◽  
Khotimatul Fauziah ◽  
Asih Kurniasari ◽  
Hafsah Halidah ◽  
...  
Keyword(s):  
Low Cost ◽  
Performance Ratio ◽  
Data Monitoring ◽  
Ratio Data

Constructing a Bioinformatics Platform with Web and Mobile Services Based on NVIDIA Jetson TK1

2015 ◽  
Vol 7 (4) ◽  
pp. 57-73 ◽  
Author(s):  
Chun-Yuan Lin ◽  
Jin Ye ◽  
Che-Lun Hung ◽  
Chung-Hung Wang ◽  
Min Su ◽  
...  
Keyword(s):  
Power Consumption ◽  
High Performance Computing ◽  
Graphics Processing Units ◽  
High Performance ◽  
Low Cost ◽  
Research Direction ◽  
Mobile Services ◽  
Performance Ratio ◽  
The Cost ◽  
Performance Computing

Current high-end graphics processing units (abbreviate to GPUs), such as NVIDIA Tesla, Fermi, Kepler series cards which contain up to thousand cores per-chip, are widely used in the high performance computing fields. These GPU cards (called desktop GPUs) should be installed in personal computers/servers with desktop CPUs; moreover, the cost and power consumption of constructing a high performance computing platform with these desktop CPUs and GPUs are high. NVIDIA releases Tegra K1, called Jetson TK1, which contains 4 ARM Cortex-A15 CPUs and 192 CUDA cores (Kepler GPU) and is an embedded board with low cost, low power consumption and high applicability advantages for embedded applications. NVIDIA Jetson TK1 becomes a new research direction. Hence, in this paper, a bioinformatics platform was constructed based on NVIDIA Jetson TK1. ClustalWtk and MCCtk tools for sequence alignment and compound comparison were designed on this platform, respectively. Moreover, the web and mobile services for these two tools with user friendly interfaces also were provided. The experimental results showed that the cost-performance ratio by NVIDIA Jetson TK1 is higher than that by Intel XEON E5-2650 CPU and NVIDIA Tesla K20m GPU card.

scholarly journals P1.1 - Low-Cost Vital Data Monitoring with Integrated Inertial Based Person Tracking

2011 ◽  
Author(s):  
E. Günes ◽  
M. Haid ◽  
M. Nickel ◽  
Th. Chobtrong
Keyword(s):  
Low Cost ◽  
Data Monitoring ◽  
Person Tracking

scholarly journals Design of a low-cost measuring and plotting device for photovoltaic modules

2019 ◽  
Vol 52 (9-10) ◽  
pp. 1308-1318
Author(s):  
Sudipta Basu Pal ◽  
Abhijit Das ◽  
Konika Das (Bhattacharya) ◽  
Dipankar Mukherjee
Keyword(s):  
Heat Dissipation ◽  
Low Cost ◽  
Climatic Conditions ◽  
Performance Ratio ◽  
Photovoltaic Module ◽  
Eastern Region ◽  
Testing Apparatus ◽  
Photovoltaic Modules ◽  
Test Kit ◽  
Capacitive Loading

The photovoltaic module testing apparatus being used presently for photovoltaic measurements acts principally on the method of photovoltaic module loading with resistive, capacitive, and electronic elements. In this work, a new method is described using a supercapacitor as the load to the photovoltaic module. This technique of characterization has proved to generate reliable V–I characteristics as validated by statistical and mathematical analyses in this article. Heat dissipation affecting the functioning of the photovoltaic modules is a common occurrence with resistive and capacitive loading techniques. It is reduced significantly in this method using supercapacitors, and curve tracing time is extremely modest and easily controllable. In effect, a low-cost, portable, and reliable I–V plotter is developed, which is operational from an embedded systems platform integrated with smart sensors. This I–V tracer has been used for the performance assessment of solar modules ranging from 10 to 100 Wp under varying climatic conditions in the eastern region of India. This test kit so developed in the photovoltaic engineering laboratory at Indian Institute of Engineering Science and Technology, Shibpur, is estimated to be useful for practicing engineers and photovoltaic scientists and in particular for photovoltaic module manufacturers. The performance parameters such as fill factor and performance ratio of photovoltaic modules measured by the device have been found to have almost identical values as the measurements from a reference commercial testing apparatus. The data pertaining to peak wattage as measured by the designed plotter have been found to be closely converging with an industry-friendly YOKOGAWA Power Meter (WT 330). Such peak values of power as measured and claimed by the datasheets will help reduce the uncertainties in measurement, leading to increased confidence of photovoltaic module manufacturers and investors. With this backdrop, the necessary work for scaling up of the low-cost I–V plotter has been taken up for assessing the performance of higher wattage photovoltaic modules.

Lightweight, low-cost and flexible flight data monitoring

2014 ◽  
Author(s):  
Brad Zarikoff ◽  
David Martin ◽  
Mark Insley
Keyword(s):  
Low Cost ◽  
Data Monitoring ◽  
Flight Data

Packaging Environmental Sensors for Monitoring Urban-Microclimates

2020 ◽  
Vol 1 (3) ◽  
Author(s):  
Shuv Dey ◽  
J. Michael Brown ◽  
Yogendra Joshi
Keyword(s):  
Low Cost ◽  
Environmental Data ◽  
Data Monitoring ◽  
Cfd Modeling ◽  
Heat Island ◽  
Environmental Sensors ◽  
Cfd Model ◽  
Advanced Packaging ◽  
Urban Heat ◽  
Urban Microclimates

Abstract An internet-of-things (IoT)-based low-cost sensor network can be used to collect the data necessary to study both Urban Heat Island (UHI) and air pollution. There are several key challenges associated with an IoT-based solution to environmental data monitoring, including packaging and deployment. This study explores these challenges by looking at effects the packaging has on the deployed environmental sensors. Several packaging designs are numerically studied using a computation fluid dynamics (CFD) model. Two sensor designs are chosen using results obtained from CFD modeling and then experimentally deployed. The findings conclude that the IoT sensors chosen for this study are not significantly affected by flow velocities or require advanced packaging designs when paired with street-side outdoor digital displays.

Integrated Design and Testing of an Anemometer for Autonomous Sail Drones

2017 ◽  
Vol 140 (5) ◽  
Author(s):  
Pugi Luca ◽  
Allotta Benedetto ◽  
Boni Enrico ◽  
Guidi Francesco ◽  
Montagni Marco ◽  
...  
Keyword(s):  
Large Scale ◽  
Fluid Dynamic ◽  
Low Cost ◽  
Integrated Design ◽  
Weather Conditions ◽  
Performance Ratio ◽  
Correct Estimation ◽  
University Of Florence ◽  
Variable Weather ◽  
Design And Testing

A correct estimation of both direction and intensity of wind velocity is fundamental for controlling an autonomous sail-boat. This kind of estimation has to be performed in a harsh environment considering the direct exposition of the sensor to salt, fog, and to any variable weather conditions. An important feature is represented by the sensor size, which has to be small compared to the drone size. Costs have to be optimized with respect to the overall small budget involved in the construction of the drone. Finally, extensive use on drones or in large sensor networks should be greatly advantaged by an easy substitutability in the case of accidental damage or system loss, an eventuality which is difficult to be completely avoided for large scale, prolonged monitoring activities. In this work authors propose a low cost ultrasonic planar anemometer with a very interesting price to performance ratio which is obtained by introducing a simple, original and innovative Arduino based architecture. Preliminary design and the results of calibration will be described, followed by testing activities performed on a low-speed large section wind tunnel, available at University of Florence supported by simple but effective computational fluid dynamic (CFD) simulations.

scholarly journals Recent Progress in Dye-Sensitized Solar Cells for Improving Efficiency: TiO2Nanotube Arrays in Active Layer

2015 ◽  
Vol 2015 ◽  
pp. 1-17 ◽  
Author(s):  
Won-Yeop Rho ◽  
Hojin Jeon ◽  
Ho-Sub Kim ◽  
Woo-Jae Chung ◽  
Jung Sang Suh ◽  
...  
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Recent Progress ◽  
Low Cost ◽  
Incident Light ◽  
Dye Sensitized Solar Cells ◽  
Performance Ratio ◽  
Future Research ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Dye-sensitized solar cells (DSSCs) have been widely studied due to several advantages, such as low cost-to-performance ratio, low cost of fabrication, functionality at wide angles and low intensities of incident light, mechanical robustness, and low weight. This paper summarizes the recent progress in DSSC technology for improving efficiency, focusing on the active layer in the photoanode, with a part of the DSSC consisting of dyes and a TiO2film layer. In particular, this review highlights a huge pool of studies that report improvements in the efficiency of DSSCs using TiO2nanotubes, which exhibit better electron transport. Finally, this paper suggests opportunities for future research.

scholarly journals ANCILLARY REVENUE PRICING

2015 ◽  
Vol 6 (2) ◽  
pp. 43-62 ◽  
Author(s):  
Andreas Wittmer ◽  
Nicole Oberlin
Keyword(s):  
Airline Industry ◽  
Low Cost ◽  
Performance Ratio ◽  
Major Influence ◽  
Service Network ◽  
Price Performance ◽  
Low Cost Carriers ◽  
The Individual ◽  
Buying Behaviour ◽  
Network Carrier

The airline industry has evolved from a system of long-established state owned carriers operating in a regular market to a dynamic, deregulated industry. This development – especially the emerging competition of low-cost carriers – has had a major influence on the price setting behaviour of airlines. Profitability of airlines is limited and pricing systems are reconsidered. To stay competitive, traditional full service carriers consider the implementation of ancillary revenue systems, which are similar to low-cost carriers. This paper investigates challenges of an ancillary revenue pricing approach for full service network carriers. A qualitative means-end approach is used to find attributes, which are important for air passengers, and influence their ticket buying behaviour. In addition, the study provides insight into the perception of an ancillary revenue system in the full service network carrier market. The findings present 18 ticket purchase attributes and 15 behavioural terminal values in hierarchical value maps. Based on these values, it is evident that most passengers appreciate if some services are included in the price and not offered as ancillaries. Benefits of ancillary revenue systems include the individual ticket creation, customisation, improved price-performance ratio, flexibility gains and progressive ideas. The main drawbacks of the system include a complicated and complex booking process, feelings of uncertainty, branding problems, a distortion of competitive behaviours, a system similar to that of low-cost carriers, feelings of paying extra for every service and a perceived decline in service and quality.

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