THE LIGHT-DOSIMETER – A NEW DEVICE TO HELP ADVANCE RESEARCH ON THE NON-VISUAL RESPONSES TO LIGHT

2021 ◽  
Author(s):  
J.R. Stampfli ◽  
R. Lazar ◽  
M. Spitschan ◽  
B. Schrader ◽  
C. di Battista ◽  
...  

Research on the non-visual responses to light under real-world conditions has been hindered by the lack of suitable measuring devices. Here, we present a novel, portable and miniaturised light-dosimeter attached to a spectacle frame, taking measurements in the near-corneal plane. The recorded data is processed with the help of the custom-made software package Lido Studio. In addition to commonly used metrics such as illuminance and correlated colour temperature (CCT), it also provides metrics standardised in CIE S 026:2018. Data can be analysed directly in Lido Studio or exported as a PDF report or a comma-separated values (CSV) file for further in-depth time-series analyses. The Federal Institute of Metrology (METAS) optics laboratory (Bern-Wabern, Switzerland) assessed the light-dosimeter’s spectral and geometric properties. Subsequentially, the team at the Centre for Chronobiology (Basel, Switzerland) confirmed that measurements performed with a light-dosimeter were comparable to those from a commercial spectroradiometer.

2020 ◽  
Author(s):  
Sopanant Datta ◽  
Taweetham Limpanuparb

<p>This article presents theoretical data on geometric and energetic features of halobenzenes and xylenes. Data were obtained from <i>ab initio</i> geometry optimization and frequency calculations at HF, B3LYP, MP2 and CCSD levels of theory on 6-311++G(d,p) basis set. In total, 1504 structures of halobenzenes, three structures of xylenes and one structure of benzene were generated and processed by custom-made codes in Mathematica. The quantum chemical calculation was completed in Q-Chem software package. Geometric and energetic data of the compounds are presented in this paper as supplementary tables. Raw output files as well as codes and scripts associated with production and extraction of data are also provided.</p>


Author(s):  
Ashvini Uke

The internet of things plays an important role of connecting numerous physical devices and automating them to create human’s life easier. By exploitation sensors, actuators and numerous software package therefore we are able to connect objects and transfer information. Today government has created priority to create cities good across the country. To create a town good, we've to try and do numerous things that may be developed exploitation net of things and good parking is one in all them. With the event of road infrastructure, there's a big increase in variety of personal vehicles which ends in hold up, directly effecting the flow of traffic, and lifetime of voters. Parking becomes a big downside within the urban areas. The analysis paper proposes a wise parking system to unravel the present parking downside at reasonable value. The projected smart Parking system consists of associate on-the-scene preparation of associate IOT module that’s custom-made monitor and signalizes the state of convenience of each single automobile car parking zone. A mobile page is to boot providing permits associate user to see the availability of automobile car parking zone and book a parking slot consequently. Towards the tip, the complete projected system shows the operative of the system in kind of a use case that proves the correctness of the projected model.


2021 ◽  
Author(s):  
Simone Brunamonti ◽  
Manuel Graf ◽  
Lukas Emmenegger ◽  
Béla Tuzson

&lt;p&gt;Water vapor (H&lt;sub&gt;2&lt;/sub&gt;O) is the strongest greenhouse gas in our atmosphere, and it plays a key role in multiple processes that affect weather and climate. Particularly, H&lt;sub&gt;2&lt;/sub&gt;O in the upper troposphere - lower stratosphere (UTLS) is of great importance to the Earth's radiative balance, and has a significant impact on the rate of global warming. Hence, accurate measurements of UTLS H&lt;sub&gt;2&lt;/sub&gt;O are crucial for understanding and projecting climate. Currently, the reference method used for in-situ measurements of UTLS H&lt;sub&gt;2&lt;/sub&gt;O aboard meteorological balloons is cryogenic frostpoint hygrometry (CFH) [1]. However, the cooling agent required for this technique (trifluoromethane) is phasing out as of 2020, due to its strong global warming potential. This represents a major challenge for the continuity of global, long-term stratospheric H&lt;sub&gt;2&lt;/sub&gt;O monitoring networks, such as the GCOS Reference Upper Air Network (GRUAN).&lt;/p&gt;&lt;p&gt;As an alternative to CFH, we developed a compact instrument based on mid-IR quantum-cascade laser absorption spectroscopy (QCLAS) [2]. The spectrometer, with a total weight of 3.9 kg, relies on a segmented circular multipass cell [3] that was specifically developed to meet the stringent requirements, in mass, size and temperature resilience, posed by the harsh environmental conditions of the UTLS. Quick response and minimal interference by H&lt;sub&gt;2&lt;/sub&gt;O outgassing from surfaces are achieved by an open-path approach. An elaborate thermal management system ensures excellent internal temperature stability, despite of outside temperature variations of up to 80 K.&lt;/p&gt;&lt;p&gt;In collaboration with the German Weather Service (DWD), two successful test flights were performed in December 2019 in Lindenberg, Germany. We will report on the results of these test flights, highlighting the instrument outstanding capabilities under UTLS and stratospheric conditions (up to 28 km altitude), and identifying some limitations. Further development activities triggered by the test flights, involving both hardware adaptations and spectral analysis modifications, will be also discussed.&amp;#160; The final validation will be addressed, in cooperation with the Swiss Federal Institute of Metrology (METAS), by laboratory experiments in a custom-made climate chamber, using dynamically generated, SI-traceable reference mixtures with H&lt;sub&gt;2&lt;/sub&gt;O amount fractions below 20 ppmv and uncertainty &lt; 1%. The ultimate goal is to demonstrate the potential of QCLAS as a highly valuable technique for quantitative balloon-borne measurements of UTLS and stratospheric H&lt;sub&gt;2&lt;/sub&gt;O.&lt;/p&gt;&lt;p&gt;[1] Brunamonti et al. (2019), J. Geophys. Res. Atmos., doi.org/10.1029/2018JD030000.&lt;/p&gt;&lt;p&gt;[2] Graf et al. (2020), Atmos. Meas. Tech. Discuss., doi.org/10.5194/amt-2020-243 (Accepted 4 January 2021).&lt;/p&gt;&lt;p&gt;[3] Graf, Emmenegger and Tuzson (2018), Opt. Lett., doi.org/10.1364/OL.43.002434.&lt;/p&gt;


Author(s):  
A. Najafi-Jilani ◽  
A. Nik-Khah

ABSTRACTMonitoring of water surfaces through permanent measurement of hydrodynamic and meteorological data is one of the main requirements in safe and sustainable water management. The Caspian Sea, the major surface water body in Iran, significantly affects more than 600 km of urban and industrial coastline. In the present work, an integrated marine monitoring network for the entire southern coastline of the Caspian Sea was developed. The main design concerns centered on the network measuring components and data recording, checking, filtering, gap recognition, and transferring systems. Four coastal monitoring stations were assigned, along with two regional collecting stations and one central data station for gathering, checking and delivering recorded data at different access levels. Applicable guidelines on selection of measuring devices for both shallow and deep water zones are presented herein.


2020 ◽  
Author(s):  
Sopanant Datta ◽  
Taweetham Limpanuparb

<div>This article presents theoretical data on geometric and energetic features of halobenzenes and xylenes. Data were obtained from ab initio geometry optimization and frequency calculations at HF, B3LYP, MP2 and CCSD levels of theory on 6-311++G(d,p) basis set. In total, 1504 structures of halobenzenes, three structures of xylenes and one structure of benzene were generated and processed by custom-made codes in Mathematica. The quantum chemical calculation was completed in Q-Chem software package. Geometric and energetic data of the compounds are presented in this paper as supplementary tables. Raw output files as well as codes and scripts associated with production and extraction of data are also provided.</div>


2020 ◽  
Vol 41 (6supl2) ◽  
pp. 3121-3132
Author(s):  
Fábio Henrique Vicente ◽  
◽  
Marcos Aurélio Lopes ◽  
Francisco Helton Sá de Lima ◽  
Fabio Raphael Pascoti Brunh ◽  
...  

This study examines the cost of applying ixodicides by using three methods (subcutaneous injection, pour-on and spraying), in different animal categories, to generate information that can help in the choice of the method. The research was carried out between May and September 2017, in the dairy cattle section of the Federal Institute of Education, Science and Technology of the South of Minas Gerais - IFSULDEMINAS - Muzambinho campus, state of Minas Gerais, Brazil. All operational expenses related to the application of the ixodicides were recorded. Data were collected by three people: two to time the application of the product and one to record the measured data. Twenty-seven Holstein cattle infested with Rhipicephalus microplus were used, consisting of 12 calves, six heifers and nine adult cows. A simulation was carried out with 50 and 100 animals to check the effect of the production scale on the cost of applying the ixodicides. Application times (animal transport, product dosing and application itself) for the calves, heifers and cow categories were shorter in the injection and pour-on methods, which did not differ from each other in any of the three studied categories. The time spent per animal on the washing of personal protective equipment and washing of sprayer reduced as the number of animals increased, because these procedures are performed only once regardless of the number of animals. The pour-on method was the least expensive. Production scale was found to be an important factor for diluting fixed costs and optimizing labor.


2020 ◽  
Author(s):  
Sopanant Datta ◽  
Taweetham Limpanuparb

<p>This article presents theoretical data on geometric and energetic features of halobenzenes and xylenes. Data were obtained from <i>ab initio</i> geometry optimization and frequency calculations at HF, B3LYP, MP2 and CCSD levels of theory on 6-311++G(d,p) basis set. In total, 1504 structures of halobenzenes, three structures of xylenes and one structure of benzene were generated and processed by custom-made codes in Mathematica. The quantum chemical calculation was completed in Q-Chem software package. Geometric and energetic data of the compounds are presented in this paper as supplementary tables. Raw output files as well as codes and scripts associated with production and extraction of data are also provided.</p>


2020 ◽  
Vol 245 ◽  
pp. 02006
Author(s):  
Yuri Smirnov ◽  
Dhiman Chakraborty ◽  
Alexander Solodkov ◽  
Siarhei Harkusha

An overview of the Conditions Database (DB) structure for the hadronic Tile Calorimeter (TileCal), one of the sub-systems of the ATLAS detector at LHC, is presented. ATLAS Conditions DB stores the data on the ORACLE backend, and the design and implementation have been developed using the COOL (Conditions Objects for LCG) software package as a common persistency solution for the storage and management of the conditions data. TileCal conditions and calibration data are stored in 4 separate Databases, each with its own schema: TileCal Online and Offline DBs for data, DB for Monte Carlo simulation and Detector Control System (DCS) DB. In order to ensure smooth operation of the TileCal during data taking, experts perform the necessary calibrations, add the changes of detector status and other conditions data, prepare new conditions for data reprocessing and Monte Carlo production campaigns, and upload the new up-to-date information into DB using custom-made software tools. The procedure of TileCal conditions’ preparation, validation, uploading to DBs is described, and some DB-related statistics collected in Run 2 is presented.


2019 ◽  
Vol 201 ◽  
pp. 06002
Author(s):  
Joanna Kuźma ◽  
Krzysztof Tomczuk ◽  
Aleksander Kopczyński

This paper presents construction, operating principle and initial study of new device for measurement and recording of arterial blood pressure, created at Wroclaw University of Science and Technology. This device is equipped with a pneumatic pressure sensor based on the pneumatic nozzle flapper amplifier principle. During the measurement sensor is applied to the patient’s body, where the pulse is easily palpable. After that, sensor is gradually pressed against to the artery, in order to record peak amplitude. Maximum value of this amplitude corresponds to the real blood pressure waveform. This device was validated according to „International Protocol revision 2010 for the validation of blood pressure measuring devices in adults”.


2002 ◽  
Vol 23 (7) ◽  
pp. 655-660 ◽  
Author(s):  
Justin Greisberg ◽  
John Drake ◽  
Joseph Crisco ◽  
Christopher DiGiovanni

Gastrocnemius contracture may be a significant cause of many foot disorders. Gastrocnemius tension can be estimated clinically by measuring maximum ankle dorsiflexion during full knee extension. Such measurements, when made with currently available goniometric devices, are subject to high levels of intra- and inter-observer variability. We have designed a device to more consistently measure ankle dorsiflexion, using three dimensional tracking sensors on the leg and foot. The applied dorsiflexion torque is kept constant by a computer, and the computer also monitors hindfoot position to maintain a neutrally aligned foot during testing. Repeated measurements on 26 feet were taken to determine the consistency of the device. The correlation coefficient for the measurements was 0.96, indicating very low intra- observer variability. The standard deviation of the repeated measures was 2°. Based on the 95% confidence interval, the device can be considered accurate to within 4°. Given this accuracy, this instrument could be used to assess gastrocnemius tension, its role in foot pathology, and the effectiveness of surgical lengthening. Compared to other currently available measuring devices, this instrument is the most reliable in estimating ankle dorsiflexion, since it is capable of controlling hindfoot position and applied dorsiflexion torque, and it can be easily constructed by other laboratories.


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