Wyniki wyszukiwania - Biblioteka Nauki

1

Ukrainian-Polish geophysical observatory PIP-IVAN in Czarnohora MTS progress report

100%

Adamienko O. , Kyyak B. , Śledziński J. , Tretyak K. , Zablotskyj F.

|

tom z. 1/64

213-217

EN

International concept of renovation of the old tumbledown astronomic observatory at the Mt. Pip-Ivan in Charnohora (Eastern Carpathians) and establishment in it the Ukrainian-Polish scientific station emerged seven years ago as a result of a bilateral initiative of the scientists-geodesists from the University "Lviv Polytechnic" and tbe Warsaw University of Technology. After that, during a whole series of Ukrainian-Polish discussions which incIuded representatives of different scientific institutions, the project of creation of the Ukrainian-Polish geophysical observatory with the permanently working satellite, gravimetric tidal, seismic, magnetic, meteorological and ecological laboratories as wen as with the recreation and tourist centre was developed. It is also envisaged to release in the Cuture this rebuild observatory to the organisation of Central European Initiative (CEl) as the international training and educational centre. In January 2002 the Ukrainian-Polish Coordination Scientific Council was establisbed under the chairmanship of a representative of the Ivano-Frankivsk administration district. The deputy chairmen of this Council are: from the side of Ukraine - Dr Kornelij Tretyak, and from Polish side - Prof. Dr Janusz Sledzinski. In summer 2002 the scientists from Cracow Mining Academy and Lviv Polytechnic carried out successfully the GPS campaign that incorporated few the highest picks in Charnohora including th e Mt. Pip-Ivan. The creation ofthe Ukrainian-Polish geophysical observatory on the top of the highest part of the Eastern Carpathians is commonly recognised as a very nice example of the fruitful and effective cross-border cooperation between Ukraine and Poland. Lately this concept met with approval of the highest government authorities of both countries.

2

Research conducted from the astro-geodetical observatory of Warsaw University of Technology at Józefosław - historical outline and present state

88%

Rogowski J.

|

2001

|

tom z. 1/56

83-111

EN

Astrogeodetic Observatory of the Institute of Geodesy and Geodetic Astronomy of the Warsaw University of Technology in Jozefoslaw was incorporated in 1957. In 1991 it was joined to the International GPS Service for Geodynamics (IGS) and started to operate as a permanent one in 1993. Since then the following permanent services have been maintained:GPS observations using Trimble and Turbo Rogue receivers, tidal gravimetric observations with La Coste & Romberg model gravimeter and meteorological observations. Since 1995 WUT Local Analysis Centre, one of the 11local analysis centres acting in Europe, has started the systematic day-to-day processing of the selected number of European sites in the frame of the EUREF network, processes national and international GPS campaigns (CEGRN, EXTENDED SAGET etc.) models ionosphere and troposphere parameters, compute tidal components and changes of the vertical according to astrometrical and gravimetric measurements. For last four years the Centre has processed and analysed many of scientific researches carried out in within the confines of the Central European Initiative (CEI). This paper presents current state of the art of the Observatory`s activities. It deals with the acting of it and participating of the WUT Local Analysis Centre to the international scientific projects.

3

The modernization of the DGPS reference station in Dziwnów

88%

Dołgopołow A. , Kaczmarek M. , Kozłowski Z. , Wolski A.

|

tom z. 1/64

281-286

EN

The area of Pomeranian Bay and the eastern region of Southern Baltic are covered by the DGPS reference station in Dziwnów. The station started transmitting corrections for the GPS system in 1995. The transmission range was too small for continued reception of correction signals aIong the Polish coast, aIso covered by the other station in Rozewie. Consequently, in 2001 a new transmission station was built to increase the signal transmission range. The paper presents the scope of work done during the modernization of aeriaI field in order to extend the Dziwnów station range and the results of signal strength measurements made in summer 2002 in the discussed area are shown.

4

Long-period Earth gravity changes at main tectonic units of Poland`s territory

75%

Ząbek Z. , Kiełek W. , Knap T.

|

2002

|

tom z. 1/61

161-170

EN

In the period 1996-2001, 41 absolute earth gravity determinations at Jozefoslaw station 6 such determinations at Lamkowko and 6 at Borowiec stations were performed. The analysis of results indicates at the station Jozefoslaw periodic changes of acceleration having one year period and 13.4+-3.0 (lambda)Gal amplitude. At the station Lamkowko and Borowiec such changes were not observed. The analysis of water relations and the results of measurements and calculations using other technologies allow us to formulate hypothesis that observed changes of gravity in Jozefoslaw are an indirect effect of atmospheric variations, namely of the magma displacements in anomalous T-T zone under the influence of atmospheric loading changes of the Earth`s crust.

5

Polish maritime DGPS reference stations coverage after the implementation of new frequency net - preliminary results

75%

Specht C.

|

2002

|

tom z. 1/61

208-216

EN

According to IALA recommendations and ITU-R approval, a new frequency plan for DGPS reference stations in The European Maritime Area was initiated on 19th of September 2001. Radio broadcasting systems of two Polish DGPS reference stations: Rozewie and Dziwnow has been returned to new assigned frequencies. In result it caused a necessity to modify their signal coverages based on former measuring campaigns followed after the transmitting antennas were modernized (Rozewie in 1998 and Dziwnow in 2001). The article presents some results of DGPS signal strength simulation and actual measurements, as well as resulted, common DGPS RS coverage of both stations. Presented calculations were done on a base of the specialization software. For signal attenuation determination, a South Baltic Sea vector chart of the conductivity data was used. In result, the new values for Effective Radiated Power and nominal ranges were established.

6

O wyzwaniach stojących przed ewaluacją w kontekście funduszy unijnych do 2020 r. - wybrane aspekty

75%

Porębska-Maciołek B.

Uniwersyteckie Czasopismo Socjologiczne

|

2016

|

nr 15

61-65

PL

Nowa perspektywa finansowa na lata 2014-2020 postawiła przed ewaluacją w Polsce wiele nowych wyzwań. Jednym z nich jest wykorzystanie w badaniach ewaluacyjnych metod kontrfaktycznych, na co Komisja Europejska kładzie obecnie ogromny nacisk. W związku z tym wyzwaniem już dzisiaj możemy zdiagnozować kilka problemów, które mogą mieć duży wpływ na sprawną realizację badań. Należą do nich: brak doświadczenia w zlecaniu badań ewaluacyjnych wykorzystujących metody kontrfaktyczne, niewielka praktyka firm badawczych w realizacji tego typu badań, brak niezbędnych danych lub problemy w ich pozyskaniu, w szczególności w kontekście budowania grup kontrolnych, otrzymywanie wyników post factum itd. Istnieje jednak kilka środków zaradczych mogących pomóc zniwelować trudności. O tym właśnie oraz o innych wyzwaniach ewaluacyjnych traktuje niniejszy artykuł.

7

DGPS with the use of two reference stations

75%

Bakuła M.

|

tom z. 1/64

257-263

EN

The paper presents Differential Global Positioning System (DGPS) post processing positioning with the use of two reference stations at the same time. The traditional DGPS is based on one reference/base station. The paper shows that when we use, simultaneously, two reference stations we can analyze distribution of pseudorange corrections over time and model them. Two reference stations used in DGPS positioning give redundant observations thanks to which we can estimate more realistic accuracy of positioning. The paper shows that the use of two reference stations improves DGPS accuracy.

8

Gedynamics of Slovenian Karst and Istria

75%

Vodopivec F. , Kogoj D. , Placer L.

|

tom z. 1/64

219-223

EN

The tectonic map of Slovenian Karst in Istria with the latest displacements determined is presented. On the base of this tectonic map and recent displacements determination in the framework of the CERGOP II, the project operating with GPS measurements on the line between permanent stations Pula - Vilach is presented. At faults with a narrow breaking zone there are foreseen also the classic measurements with the precise distancemeter Kern Mekometer ME 5000 and with a precise theodollite.

9

Fixing the observable ship position with the usage of Danish damping function

75%

Czaplewski K. , Wiśniewski Z.

|

tom z. 1/64

287-294

EN

Fixing the sea object position is the essential task of maritime navigation. It is one of the elements of safe ship leading from one harbour to the other. The methods and the ways of fixing the sea ship position have been developed together with the technical development . New ways of fixing allow for quick and very precise fixing the sea object position. However, it may happen that some of the measurements contain some fatal errors. Such results are called trajectory observations. So far in the navigation practice the observed positions are left out in the process of navigation, according to the IMP ( International Maritime Organizations ) requirements. Nevertheless there are methods of equalling which allow for partial or full elimination of the influence of the trajectory observations on the final co-ordinates of the position of an observed sea object. Such methods are known in geodesy and are called resistant methods. The following article presents the possibility of using one of the methods of resistant equalling to fixing a single sea object position. Experimental damping function, known as Danish function is presented in the suggested method. The adjustment of the Danish method for the maritime navigation needs will be tested on a hypothetical navigational situation.

10

Determination of stable points in the deformation analysis

75%

Vodopivec F. , Savsek-Safic S.

|

tom z. 1/64

225-232

EN

The article aims at presenting the implementation of different deformation analysis approaches for determining - on the basis of geodetic observations and with the use of statistical methods-the three-dimensional displacements of a given object. On the test example of a simulated network the analysis of the Hannover, Asanin an Mihailovic approaches has been carried out. Additionally, a comparison regarding the efficiency of stable point identyfication according to the deformation analysis approaches has been made.

11

Kinematic positioning using EGNOS system test bed (ESTB) in Central European Countries in 2002

75%

Ciecko A. , Oszczak S. , Popielarczyk D. , Bakuła M. , Cefalo R. , Manzoni G. , Balint J.

|

tom z. 1/64

245-255

EN

The paper describes three experiments performed in Poland, Slovakia and Italy. The experiments concern navigation and positioning of a moving vehicle with the use of GPS satellite system and the corrections from EGNOS satellites. Tests were performed in cooperation of University of Warmia and Mazury in Olsztyn, Poland; University of Trieste, Italy and Air Force Academy in Kosice, Slovakia. Experiments were carried out in the August and September 2002. Different receivers were taking part in the experiments including Ashtech, NovAtel and Magellan receivers. The results of ESTB satellite positioning are compared with performance oC precise RTK - OTF method. Estimation of accuracy of ESTB satellite positioning is done. The results are presented and discussed.

12

New tidal gravimetric laboratory in Jozefoslaw

63%

Bogusz J.

|

2002

|

tom z. 1/61

153-159

EN

Since the middle of 2001 the Astro-Geodetic Obserwatory in Jozefoslaw has been equipped with new ET-26 LaCosteand Romberg gravimeter. This instrument is strictly dedicated to the Earth tides measurements. It has double lever system, double oven heating system and electrostating nulling which provide greater reliability and accuracy. This paper is aimed at describing the actions that had to be done before the recording started in the tidal laboratory in new building of the Jozefoslaw Observatory. These activities for instance were: electronic levels adjustment, instrumental phase lag determination as well as correctness of the voltmeter constant evaluation checking. The presentation contains the preliminary results of measurements at the tidal parameters (amplitude factors and phase shifts) derived from adjustment of first 5-months data. The concept of the synchronized tidal measurements made by two LC&R gravimeters (ET-26 and D-196) working in almost identical conditions in the same laboratory in Jozefoslaw is also presented.

13

Historia Obserwatorium Hohenpeissenberg

63%

Kępa S.

Przegląd Geofizyczny

|

2009

|

tom Z. 1-2

103-109

PL

Artykuł zawiera historię najstarszego górskiego obserwatorium meteorologicznego na świecie. Jest nim, położone w południowej Bawarii w Niemczech, obserwatorium Hohenpeissenberg. Z punktu widzenia meteorologii ma ono dużą wartość, gdyż ma m.in. najdłuższą na świecie, jednorodną serię obserwacyjną temperatury powietrza w górach. W pracy ta przedstawiono okoliczności powstania tej instytucji, jej późniejsze zmagania o przetrwanie oraz XX-wieczny rozwój i wzrost znaczenia.

EN

This paper contains history of the oldest mountain meteorological observatory in the world. It is Hohenpeissenberg observatory which is lying in the southern Bavaria in Germany. With a point of view of meteorology it has great value, because it have i.a. the longest, homogeneous observational series of air temperature in the mountains. This article presents circumstances of observatory’s establishment, fight for survival and observed in XX century development and growth of significance.