scholarly journals Optical laboratory facilities at the Finnish Meteorological Institute – Arctic Research Centre

2016 ◽  
Author(s):  
K. Lakkala ◽  
H. Suokanerva ◽  
J. M. Karhu ◽  
A. Aarva ◽  
A. Poikonen ◽  
...  
Keyword(s):  
Test System ◽  
Research Centre ◽  
Multidisciplinary Research ◽  
Finnish Meteorological Institute ◽  
Laboratory Facilities ◽  
Biological Studies ◽  
Optical Table ◽  
Set Up ◽  
Dark Room ◽  
Meteorological Institute

Abstract. This paper describes the laboratory facilities at the Finnish Meteorological Institute – Arctic Research Centre (FMI-ARC). They comprise an optical laboratory, a facility for biological studies and an office. A dark room has been built, in which an optical table and a fixed lamp test system are set up, and the electronics allow high precision adjustment of the current. The Brewer spectroradiometer, NILU-UV multifilter radiometer and ASD spectroradiometer of the FMI-ARC are regularly calibrated or checked for stability in the laboratory. The facilities are ideal for responding to the needs of international multidisciplinary research, giving the possibility to calibrate and characterize the research instruments as well as handle and store samples.

scholarly journals Optical laboratory facilities at the Finnish Meteorological Institute – Arctic Research Centre

2016 ◽  
Vol 5 (2) ◽  
pp. 315-320 ◽  
Author(s):  
Kaisa Lakkala ◽  
Hanne Suokanerva ◽  
Juha Matti Karhu ◽  
Antti Aarva ◽  
Antti Poikonen ◽  
...  
Keyword(s):  
Test System ◽  
Research Centre ◽  
Multidisciplinary Research ◽  
Finnish Meteorological Institute ◽  
Laboratory Facilities ◽  
Biological Studies ◽  
Optical Table ◽  
Set Up ◽  
Dark Room ◽  
Meteorological Institute

Abstract. This paper describes the laboratory facilities at the Finnish Meteorological Institute – Arctic Research Centre (FMI-ARC, http://fmiarc.fmi.fi). They comprise an optical laboratory, a facility for biological studies, and an office. A dark room has been built, in which an optical table and a fixed lamp test system are set up, and the electronics allow high-precision adjustment of the current. The Brewer spectroradiometer, NILU-UV multifilter radiometer, and Analytical Spectral Devices (ASD) spectroradiometer of the FMI-ARC are regularly calibrated or checked for stability in the laboratory. The facilities are ideal for responding to the needs of international multidisciplinary research, giving the possibility to calibrate and characterize the research instruments as well as handle and store samples.

scholarly journals Nordic Snow Radar Experiment

2016 ◽  
Vol 5 (2) ◽  
pp. 403-415 ◽  
Author(s):  
Juha Lemmetyinen ◽  
Anna Kontu ◽  
Jouni Pulliainen ◽  
Juho Vehviläinen ◽  
Kimmo Rautiainen ◽  
...  
Keyword(s):  
European Space Agency ◽  
Winter Season ◽  
Test Site ◽  
Microwave Emission ◽  
The Arctic ◽  
Research Centre ◽  
Easy Access ◽  
Finnish Meteorological Institute ◽  
Meteorological Institute

Abstract. The objective of the Nordic Snow Radar Experiment (NoSREx) campaign was to provide a continuous time series of active and passive microwave observations of snow cover at a representative location of the Arctic boreal forest area, covering a whole winter season. The activity was a part of Phase A studies for the ESA Earth Explorer 7 candidate mission CoReH2O (Cold Regions Hydrology High-resolution Observatory). The NoSREx campaign, conducted at the Finnish Meteorological Institute Arctic Research Centre (FMI-ARC) in Sodankylä, Finland, hosted a frequency scanning scatterometer operating at frequencies from X- to Ku-band. The radar observations were complemented by a microwave dual-polarization radiometer system operating from X- to W-bands. In situ measurements consisted of manual snow pit measurements at the main test site as well as extensive automated measurements on snow, ground and meteorological parameters. This study provides a summary of the obtained data, detailing measurement protocols for each microwave instrument and in situ reference data. A first analysis of the microwave signatures against snow parameters is given, also comparing observed radar backscattering and microwave emission to predictions of an active/passive forward model. All data, including the raw data observations, are available for research purposes through the European Space Agency and the Finnish Meteorological Institute. A consolidated dataset of observations, comprising the key microwave and in situ observations, is provided through the ESA campaign data portal to enable easy access to the data.

scholarly journals MIAWARA-C, a new ground based water vapor radiometer for measurement campaigns

2010 ◽  
Vol 3 (5) ◽  
pp. 1271-1285 ◽  
Author(s):  
C. Straub ◽  
A. Murk ◽  
N. Kämpfer
Keyword(s):  
Water Vapor ◽  
Middle Atmosphere ◽  
Horn Antenna ◽  
Research Centre ◽  
Profile Measurement ◽  
Finnish Meteorological Institute ◽  
Correlation Receiver ◽  
Set Up ◽  
Compact Design ◽  
Measurement Campaigns

Abstract. In this paper a new 22 GHz water vapor spectro-radiometer which has been specifically designed for profile measurement campaigns of the middle atmosphere is presented. The instrument is of a compact design and has a simple set up procedure. It can be operated as a standalone instrument as it maintains its own weather station and a calibration scheme that does not rely on other instruments or the use of liquid nitrogen. The optical system of MIAWARA-C combines a choked gaussian horn antenna with a parabolic mirror which reduces the size of the instrument in comparison with currently existing radiometers. For the data acquisition a correlation receiver is used together with a digital cross correlating spectrometer. The complete backend section, including the computer, is located in the same housing as the instrument. The receiver section is temperature stabilized to minimize gain fluctuations. Calibration of the instrument is achieved through a balancing scheme with the sky used as the cold load and the tropospheric properties are determined by performing regular tipping curves. Since MIAWARA-C is used in measurement campaigns it is important to be able to determine the elevation pointing in a simple manner as this is a crucial parameter in the calibration process. Here we present two different methods; scanning the sky and the Sun. Finally, we report on the first spectra and retrieved water vapor profiles acquired during the Lapbiat campaign at the Finnish Meteorological Institute Arctic Research Centre in Sodankylä, Finland. The performance of MIAWARA-C is validated here by comparison of the presented profiles against the equivalent profiles from the Microwave Limb Sounder on the EOS/Aura satellite.

scholarly journals Numerical calculation and experimental study on response characteristics of pneumatic solenoid valves

2019 ◽  
Vol 52 (9-10) ◽  
pp. 1382-1393 ◽  
Author(s):  
Xiang Zhang ◽  
Yonghua Lu ◽  
Yang Li ◽  
Chi Zhang ◽  
Rui Wang
Keyword(s):  
Switching Time ◽  
Response Characteristic ◽  
Test System ◽  
Solenoid Valve ◽  
Circuit Model ◽  
Inlet Pressure ◽  
Driving Voltage ◽  
Response Characteristics ◽  
Aerodynamic Model ◽  
Set Up

In order to analyze the response characteristics of the solenoid valve in depth, the flow field of the solenoid valve is analyzed by means of the computational fluid dynamics, and the aerodynamic parameters that are difficult to be obtained by the traditional methods are obtained with software FLUENT. We also set up the mathematical model of the solenoid valve, including the aerodynamic model, the circuit model, the magnetic circuit model and the mechanical motion model. The calculation is completed in the Simulink, and the results of the calculation are analyzed. A set of the solenoid valve response characteristic test system is built, and the response characteristic parameters such as response time and maximum action frequency of the solenoid valve are tested. The experimental results are verified by comparing them with the simulation results. The final result shows that the response characteristics are basically irrelevant to the action frequency at a suitable working frequency. The open switching time of the solenoid valve decreases with the increase in the inlet pressure and the driving voltage and increases with the increase in the number of coil turns. The close switching time increases with the increase in the inlet pressure, the driving voltage and the number of coil turns.

scholarly journals Sodankylä manual snow survey program

2016 ◽  
Vol 5 (1) ◽  
pp. 163-179 ◽  
Author(s):  
Leena Leppänen ◽  
Anna Kontu ◽  
Henna-Reetta Hannula ◽  
Heidi Sjöblom ◽  
Jouni Pulliainen
Keyword(s):  
Snow Water Equivalent ◽  
Measurement Techniques ◽  
Liquid Water Content ◽  
The Arctic ◽  
Research Centre ◽  
Future Research ◽  
Forest Zone ◽  
Finnish Meteorological Institute ◽  
Snow Properties ◽  
Snow Water

Abstract. The manual snow survey program of the Arctic Research Centre of the Finnish Meteorological Institute (FMI-ARC) consists of numerous observations of natural seasonal taiga snowpack in Sodankylä, northern Finland. The easily accessible measurement areas represent the typical forest and soil types in the boreal forest zone. Systematic snow measurements began in 1909 with snow depth (HS) and snow water equivalent (SWE). In 2006 the manual snow survey program expanded to cover snow macro- and microstructure from regular snow pits at several sites using both traditional and novel measurement techniques. Present-day snow pit measurements include observations of HS, SWE, temperature, density, stratigraphy, grain size, specific surface area (SSA) and liquid water content (LWC). Regular snow pit measurements are performed weekly during the snow season. Extensive time series of manual snow measurements are important for the monitoring of temporal and spatial changes in seasonal snowpack. This snow survey program is an excellent base for the future research of snow properties.

scholarly journals Local seismic cultures: a European research program for the protection of traditional housing stock

1995 ◽  
Vol 38 (5-6) ◽  
Author(s):  
B. Helly
Keyword(s):  
Research Program ◽  
Seismic Risk ◽  
Local Community ◽  
Housing Stock ◽  
Multidisciplinary Research ◽  
Research Activity ◽  
Know How ◽  
Risk Areas ◽  
Set Up ◽  
Source Of Information

The research activity of the Ravello European Center for Cultural Heritage in seismic risk areas is part of the Council of Europe's Major Risks EUR-OPA agreement. The program aims to identify traditional antiseismic building techniques. with a view to subsequent revitalization, tapping know-how within the local community. This requires analysis of the techniques and methods that have developed over the years in local communities. The multidisciplinary research program set up for this purpose has adopted the archeological approach. thereby recognizing that physical and inaterial assets provide a key source of information.

scholarly journals Commentary: how person-centred is pharmaceutical care?

2021 ◽  
Author(s):  
Hanna Gyllensten ◽  
Joanne M. Fuller ◽  
Malin Johansson Östbring
Keyword(s):  
Pharmaceutical Care ◽  
Health Systems ◽  
Clinical Pharmacy ◽  
Clinical Work ◽  
Research Centre ◽  
Multidisciplinary Research ◽  
Work Tasks

AbstractHealth systems in many countries are currently undergoing an evolution towards more person-centred care. However, an overview of the literature shows that there is little or no guidance available on how to apply person-centred care to pharmaceutical care and clinical pharmacy practices. In this paper we apply a model for person-centred care created by a national multidisciplinary research centre in Gothenburg, Sweden, to the clinical work tasks of outpatient and inpatient pharmacists and describe how pharmaceutical care can become more person-centred.

The Vehicles ESP Test System Based on Active Braking Control

2012 ◽  
Vol 588-589 ◽  
pp. 1552-1559
Author(s):  
Lu Zhang ◽  
Guo Ye Wang ◽  
Guo Yan Chen ◽  
Zhong Fu Zhang
Keyword(s):  
Control System ◽  
Test System ◽  
Stability Control ◽  
Control Test ◽  
Control Performance ◽  
Vehicle System ◽  
Braking Control ◽  
Set Up ◽  
The Stability ◽  
Driving Stability

This paper proposes an active braking control dynamical system in order to establish a safe and efficient vehicle driving stability control test system. Aiming at Chery A3 sedan, set up the active braking control dynamic simulation system base on MATLAB/Simulink. Adopting the brake driving integration ESP control strategy, analyze and verify the stability control performance of independent vehicle system and vehicle ESP test system based on active braking control respectively in under steering and excessive steering two test conditions. The analyzing results indicate that the test system based on active braking control can effectively assist vehicle travelling in the absence of ESP control or ESP control system failure; when vehicle has ESP control system, the driving stability control performance of this system and independent vehicle system has remarkable consistency. The active braking control system provides a basis for research of vehicle driving stability control test.

The Application Study of Accumulator Used in Hydraulic System of 20MN Fast Forging Machine

2011 ◽  
Vol 80-81 ◽  
pp. 870-874 ◽  
Author(s):  
Min Qiang Dai ◽  
Sheng Dun Zhao ◽  
Xiao Mei Yuan
Keyword(s):  
Energy Conservation ◽  
Hydraulic System ◽  
Pressure Pulsation ◽  
Test System ◽  
Hydraulic Shock ◽  
Application Study ◽  
Calculation Results ◽  
Set Up ◽  
Forging Press ◽  
Made In

Based on the description of 20MN fast forging press hydraulic system, the paper analyzed the possibility of energy conservation which the accumulator made in the fast forging machine system. When accumulator was used in fast forging machine, then analyzed the calculation results, and the energy conservation program of fast forging machine energy accumulator was evaluated briefly. The test system was set up on 20MN fast forging machine, and the paper researched the application of accumulator in fast forging press hydraulic system on absorbing hydraulic shock and eliminating pressure pulsation.

The First Women’s Studies Research Centre: A History of Women’s Studies and Its Progenitors

2018 ◽  
Vol 25 (2) ◽  
pp. 212-233
Author(s):  
Maithreyi Krishnaraj
Keyword(s):  
Women's Studies ◽  
Academic Disciplines ◽  
Research Centre ◽  
Women's Issues ◽  
Women’S Studies ◽  
Master's Thesis ◽  
History Of ◽  
The Government ◽  
Set Up ◽  
The University

The beginning of Women’s Studies has a special history in India. It owes its origin not only to some stalwarts but also to the historical times in which its birth took place. Its location in the SNDT Women’s University in Mumbai was at the initiative of Dr Neera Desai, a Professor of Sociology at that university. Her own work on women’s issues in her Master’s thesis and her involvement in the women’s movement gave her the background for envisaging that a women’s university should engage with analysis of women’s condition and not just teach women other academic disciplines. It was with this motive, that the Research Centre for Women’s Studies was set up in 1974, a year before the publication of the report Towards Equality of the Government of India. The university - originally begun at the initiative of the educationist Shri Dhondo Kheshav Karve received a handsome grant from the industrialist Shri Damodar Thackersey and got named after his mother Shrimathi Nathibai Damodar Thackersey hereafter SNDT Women’s University. The Centre with the involvement of able and farsighted administrators at this university spearheaded the development of this Centre, which became the torch bearer for raising women’s issues.

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