54 research outputs found
Operation of the photovoltaic system in Prague and data evaluation
Received: January 6th, 2021 ; Accepted: April 7th 2021 ; Published: April 12th 2021 ; Correspondence: [email protected] on-grid photovoltaic system was installed at the Faculty of Engineering in 2015.
The monitoring system developed in our laboratory monitors data and can also detect failure and
type of failure. The evaluation of the data shows that the amount of electricity produced slightly
exceeds the expected values predicted by the internationally used internet application PVGIS.
The effect of the aging of PV panels has so far had a minimal effect on the electricity produced.
Immediate output power is affected by multiple parameters. Higher temperatures reduce the
efficiency of energy conversion, so in summer the instantaneous power may be lower even at
higher radiation intensity and smaller angle of incidence
Design and data comparison of the photovoltaic power plants in the southern and northern hemispheres
We have recently developed a unique monitoring system for photovoltaic power plants
and have gradually improved it in recent years. The system is installed at about 80 power plants
in several European countries and at one power plant in Chile. We collect and evaluate all data
in our laboratory. In this paper we describe the unique design of a photovoltaic power plant in the
southern hemisphere in Chile with photovoltaic panels installed on tracking stands. We present
the evaluated data and we discuss their comparison with photovoltaic power plants installed in
Europe. We also discuss different solar conditions of these locations
Liquid biopsies come of age: towards implementation of circulating tumour DNA
Improvements in genomic and molecular methods are expanding the range of potential applications for circulating tumour DNA (ctDNA), both in a research setting and as a ‘liquid biopsy’ for cancer management. Proof-of-principle studies have demonstrated the translational potential of ctDNA for prognostication, molecular profiling and monitoring. The field is now in an exciting transitional period in which ctDNA analysis is beginning to be applied clinically, although there is still much to learn about the biology of cell-free DNA. This is an opportune time to appraise potential approaches to ctDNA analysis, and to consider their applications in personalized oncology and in cancer research.We would like to acknowledge the support of The University of Cambridge, Cancer Research UK (grant numbers A11906, A20240, A15601) (to N.R., J.D.B.), the European Research Council under the European Union's Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement n. 337905 (to N.R.), the Cambridge Experimental Cancer Medicine Centre, and Hutchison Whampoa Limited (to N.R.), AstraZeneca (to R.B., S.P.), the Cambridge Experimental Cancer Medicine Centre (ECMC) (to R.B., S.P.), and NIHR Biomedical Research Centre (BRC) (to R.B., S.P.). J.G.C. acknowledges clinical fellowship support from SEOM
Modelling enterprise applications using business artifacts
©2017 by SCITEPRESS - Science and Technology Publications, Lda. All rights reserved. Most of the existing modeling languages such as UML, BPML, etc. that attempt to capture the semantics of real-world objects produce complex technical models that are not suitable for business professionals. Another important limitation of traditional modeling approaches is the lack of a mechanism for modeling the lifecycle of business objects. These limitations have motivated recent interest in alternative approaches such as business artefact modelling that provide a unified representation of data and processes in the form of business artifacts. In this paper we describe the Unicorn Universe Process method that uses business artifacts as a fundamental building block of information systems. We illustrate the application of this method using a University Assignment Submission case study scenario
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