253 research outputs found
Evaluation or perfusion and thermal parameters of skiin tissue using cold provocation and thermographic measurements
Measurement of the perfusion coefficient and thermal parameters of skin tissue using dynamic thermography is presented in this paper. A novel approach based on cold provocation and thermal modelling of skin tissue is presented. The measurement was performed on a personâs forearm using a special cooling device equipped with the Peltier module. The proposed method first cools the skin, and then measures the changes of its temperature matching the measurement results with a heat transfer model to estimate the skin perfusion and other thermal parameters. In order to assess correctness of the proposed approach, the uncertainty analysis was performed
Eremophila goodwinii F. Muell.
https://thekeep.eiu.edu/herbarium_specimens_byname/21547/thumbnail.jp
Persoonia mollis R.Br. subsp. Mollis
https://thekeep.eiu.edu/herbarium_specimens_byname/20802/thumbnail.jp
Novel software for medical and technical Thermal Object Identification (TOI) using dynamic temperature measurements by fast IR cameras
This paper presents a thermal analysis and methodology of thermal parameters identification of thermal multilayer structures using thermographic measurements after dynamic heating (or cooling) the investigated objects. During the thermal transient process, thermal images are recorded, with the highest possible frame rate of the camera. Then, temperature and power signals are transformed into the frequency domain, to get finally the thermal time constants distribution corresponding to the thermal parameters of the structure. A brief description of TOI program developed in MATLAB environment as well as the exemplary identifications of 2 different thermal objects are shown
Compact thermal model of a D2Pak case with convection
Abstract The paper presents a compact thermal model of an electronic component enclosed in a D2Pak case. The model includes convection cooling and is compared to a linear model with isothermal boundary condition. The model presented is a static model
A prospective cohort study in patients with type 2 diabetes mellitus for validation of biomarkers (PROVALID) âstudy design and baseline characteristics
Background/Aims: The prevalence of diabetes mellitus type 2 and kidney disease in these
patients varies widely between European countries. Methods: In addition to store biosamples
the âProspective cohort study in patients with type 2 diabetes mellitus for validation
of biomarkersâ collects information on history, physical status, laboratory measurements
and medication in 4000 patients with diabetes mellitus type 2, being taken care of at the
primary level of healthcare in 5 European countries (Austria, Hungary, Netherlands, Poland
and Scotland). Next to comparing the rate of loss of eGFR between the countries, a further
objective of the PROVALID study is to determine the 5-year cumulative incidence of renal and
cardiovascular outcomes. Results: The mean age of the population recruited is 62.9±10 years,
54.6% are male and the mean BMI is 30.9±5.4 kg/m2
. Metabolic control (median HBA1c 6.8
% (6.2;7.5)) is achieved via administration of metformin in 67.4% of the patients and insulin in 30.3%. Median systolic and diastolic blood pressure at recruitment is 135 (125;146) and 80
(72;85) mmHg, 65.4% of subjects received RAAS blocking agents. Mean eGFR is 80.7±29.2
ml/min/1.73m2
and median baseline albumin/creatinine ratio 8.3 mg (IQR: 3.8 and 25.1).
Conclusion: PROVALID will provide information on incidence and progression of renal and
cardiovascular disease and therapy in patients with type 2 diabetes mellitus in different
European countries. Thus, in contrast to many other cohort studies we will be able to associate
national clinical practise pattern with outcome in this highly vulnerable patient population
Cross-correlation based movement correction method for biomedical dynamic infrared imaging
Abstract During dynamic infrared imaging there is a need of temperature measurement along time at a point or area. The paper shows the recent studies using dynamic infrared imaging in medicine and problems of proper data extraction which is the result of an object movement. The method of movement correction based on cross correlation calculated for dynamic thermal imaging is presented. The influence of movement correction on extracted data and point tracking precision is shown. The proposed method has been successfully applied for cold stress diagnosis during breast cancer screening
The future of European Nephrology 'Guidelines' - a declaration of intent by European Renal Best Practice (ERBP)
The disparities of medical practice, together with a growing number of possible interventions, have increased the demand for well-conceived guidance for practitioners [1]. However, this development is hampered by the number and quality of scientific studies that test medical hypotheses, which are often unsatisfactory. This is especially true in nephrology, where well-conducted controlled trials are rare [2]. Because patients with renal failure are generally excluded from controlled studies in the general population [3], the development of sufficiently well-founded guidance in nephrology has always been difficult.
With the development of European Best Practice Guidelines (EBPG), the European Renal AssociationâEuropean Dialysis and Transplantation Association (ERAâEDTA) has created its own guidance-generating process. Similar initiatives have also arisen in the USA (Kidney Disease Outcome InitiativeâK/DOQI), Australia (Caring for Australasians with Renal ImpairmentâCARI), Canada (Canadian Society of NephrologyâCSN), the UK (United Kingdom Renal AssociationâUKRA), as well as at several other locations around the world. These institutions have generated a plethora of often parallel recommendations on similar topics but sometimes with different messages [4].
The question can be asked: âIs there still a place for an institution generating European nephrology guidance?â If there is, how should such an initiative be managed to conform with current demands? To answer these questions, the Council of ERAâEDTA set up a commission that convened three times in the course of 2008â09.
The present text is a distillation of the discussions, reflections and final conclusions of this commission. It is an ad hoc document, reflecting the current status. In the future, concepts and attitudes might change, as medical thinking is influenced by changes in practice, needs, general philosophy, ethics and political/financial conditions
The SST-1M camera for the Cherenkov Telescope Array
The prototype camera of the single-mirror Small Size Telescopes (SST-1M)
proposed for the Cherenkov Telescope Array (CTA) project has been designed to
be very compact and to deliver high performance over thirty years of operation.
The camera is composed of an hexagonal photo-detection plane made of custom
designed large area hexagonal silicon photomultipliers and a high throughput,
highly configurable, fully digital readout and trigger system (DigiCam). The
camera will be installed on the telescope structure at the H.
Niewodnicza{\'n}ski institute of Nuclear Physics in Krakow in fall 2015. In
this contribution, we review the steps that led to the development of the
innovative photo-detection plane and readout electronics, and we describe the
test and calibration strategy adopted.Comment: In Proceedings of the 34th International Cosmic Ray Conference
(ICRC2015), The Hague, The Netherlands. All CTA contributions at
arXiv:1508.05894; Full consortium author list at http://cta-observatory.or
- âŠ