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Abstrakt

The debate around the relations between Christians and Jews has recently become one of the discussed issues in the cultural Israeli world. This article examines the references to Christianity and to Jesus in the contemporary Israeli fiction. Through the analysis of some literary works produced by the best-know Israeli writers, we will try to describe the way the authors deal with Christian elements and explore their personal considerations. In particular a great attention will be devoted to Amos Oz’s last novel Judas, published in 2014. The story is based on the life of a young student who is writing a doctoral dissertation on “How Jews see Jesus” but it ends up focusing on the figure of Judas. In revealing the intent of his research the protagonist presents a detailed investigation of the Jewish attitude towards Christians quoting sources from the ancient times until today. Through Oz’s book it is possible to explore the complex relationship between Christians and Jews and offers new starting points for the future debates.
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Autorzy i Afiliacje

Maddalena Schiavo

Abstrakt

The problem of determining displacements of objects is an important and current issue, in particular in terms of operational safety. This is a requirement that covers geodetic, periodic control measurements in order to determine horizontal and vertical displacements. The paper is focused on the analysis of vertical displacements. Geodetic measurements and their interpretation allow to reduce the risk of possible structural catastrophes. The major research topic of the majority of available papers is displacement determination of individual controlled points, in a situation where there are identified as fixed reference points. There are cases making identification of such points difficult or impossible to use in displacement analysis. This paper addresses a rare case of determining vertical displacements in unstable reference systems. Due to the fact that most of the existing and known literature methods do not always bring satisfactory results, the paper propose a new method of vertical displacement determination in the absence of reference points in the local coordinate system. Practical considerations on simulated data show that the presented method performs the task correctly.

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Autorzy i Afiliacje

D. Filipiak-Kowszyk
W. Kamiński

Abstrakt

The article presents the reviewed and summarised research activities of Polish research groups on reference frames and reference networks in a period of 2019–2022. It contains the results on the implementation of latest resolutions on reference systems of the International Union of Geodesy and Geophysics and the International Astronomical Union focusing on changes in the consecutive issues of the Astronomical Almanac of the Institute of Geodesy and Cartography, Warsaw. It further presents the status of the implementation of the European Terrestrial Reference System 1989 (ETRS89) in Poland, monitoring the terrestrial reference frame, including research on global terrestrial reference frames, GNSS data analysis within the EUREF Permanent Network, research on GNSS receiver antenna phase centres, research on impact of non-tidal loading effects on position solutions, and on station velocities. Then the activities concerning the realization of ITRS and ETRS89 in Poland are discussed, including operational work of GNSS IGS/EPN stations as well as operational work of the laser ranging station of the International Laser Ranging Service, with special emphasis on the Polish active GNSS network for the realization of ETRS89 and maintenance of the vertical control network. Extensive research activities are observed in the field of implementation of the International Terrestrial Gravity Reference Frame in Poland, maintenance and modernization of gravity control network in Poland but also in Sweden, establishment of gravity control network in Ireland based on absolute gravity survey as well as maintenance of the national magnetic control network in Poland which is traditionally performed on a regular basis.
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Autorzy i Afiliacje

Jan Kryński
1
ORCID: ORCID
Tomasz Liwosz
2
ORCID: ORCID

  1. Institute of Geodesy and Cartography, Warsaw, Poland
  2. Warsaw University of Technology, Warsaw, Poland

Abstrakt

The aim of this study was to establish reference values for 2D and M-mode measurements in Dachshunds. Basic echocardiographic data, including M-mode, 2D and spectral Doppler measurements, was collected, analyzed and compared between 41 healthy Dachshunds and 50 other healthy dogs of similar weight. Echocardiographic reference intervals were prepared for Dachshunds. Dachshunds had a smaller left ventricular diameter in diastole and systole and a thicker septum than other dog breeds. Male Dachshunds had larger diastolic and systolic left ventricular diameter than females. Reference intervals for 2D and M-mode measurements in healthy Dachshunds differ from other dogs of similar weight and should be used for this breed to assess chamber enlargement.

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Autorzy i Afiliacje

M. Garncarz
M. Parzeniecka-Jaworska
M. Czopowicz
M. Hulanicka
M. Jank
O. Szaluś-Jordanow

Abstrakt

The European rabbit (Oryctolagus cuniculus) is a good model in biomedicine used in research on several human diseases. The reference values of B and T cells and their subpopu- lations are very important to understand how the adaptive immune system is responding to infectious agents. The aim of this study was to determine values of B and T cells and their subpopulations in Polish mixed-breed rabbits, considering seasons of the year and sex. The study was performed on 200 Polish mixed-breed rabbits and the percentage of B and T lymphocytes was measured cytometrically using mouse anti-rabbit antibodies. The study revealed that the season of the year and sex of the animals affected the percentage of B- and T-cells and their subpopulations in peripheral blood. Statistically significant values of CD19+ B-cells in spring and autumn, of T CD5+ cells in spring and winter, of T CD4+ in spring, summer, autumn and winter, of T CD8+ in winter and of T CD25+ in spring were noted. Generally the highest values were found mainly in warm part of the year, while the lowest in colder months. A statistical significance was also observed between males and females – changes were found in T CD4+ and T CD25+ lymphocytes in spring, T CD8+ cells in winter and higher percentage was generally obtained in females than in males. The only exception was the T CD5+ subpopulation in which no differences were observed between the sexes and throughout the year. This is the first paper on adaptive immune system cell values in the European rabbit of domestic breeds.

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Autorzy i Afiliacje

P. Niedźwiedzka-Rystwej
B. Tokarz-Deptuła
J. Abrantes
P.J. Esteves
W. Deptuła

Abstrakt

Reference intervals (RIs) are one of the essential elements in the procedure of disease diagnosis. This is especially true for feline species in which RI is less available than in canine species. RIs are affected by biological, geographical and instrumental factors, yet published RIs with incomplete background are popularly used. Inappropriate interpretations of RIs may affect classification of disease and subsequent treatment. In this study, we demonstrated the step-by-step establishment of feline RIs following the American Society for Veterinary Clinical Pathology (ASVCP) reference interval guideline. A total of 51 parameters were examined, including 20 hematology and 31 biochemistry parameters, and the results were compared to one local RI and two foreign RIs. Overall, about 29% (10/35) of tested parameters were different form local RIs and 60% (30/50) were different from the two foreign RIs, highlighting geographical variations. A higher upper reference limit (URL) in red blood cell count (RBC), hematocrit (Hct), Hemoglobin (Hgb), albumin, creatinine and lower URL in potassium and white blood cell count (WBC) were identified, which may impact the interpretation. In addition, statistical analysis of age and gender were factored separately and indicated that 10 parameters were significantly higher in the adult group. For the impact of gender, percentage of basophil and total iron-binding capacity (TIBC) were lower in female and male cats, respectively. In conclusion, we have demonstrated that it is desirable to establish in-house RIs or RIs of local sources. An age specific RI for the geriatric feline population is advisable for better diagnosis and monitoring the disease.

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Autorzy i Afiliacje

T.L. Lin
S.H. Chung
C.H. Sung
S.Y. Yeh
T.L. Cheng
C.C. Chou

Abstrakt

The paper presents an off-line application that determines the maximum accuracy of the reference points for the given dynamics parameters of a CNC machine. These parameters are maximum speed, acceleration, and JERK. The JERK parameter determines the rate of change of acceleration. These parameters are defined for each working axis of the machine. The main achievement of the algorithm proposed in the article is the determination of the smallest error specified for each reference point resulting from the implemented G-code for the considered dynamic parameters of the CNC machine. The solutions to this problem in industry consider the improvement in the accuracy of hitting the reference points, but they do not provide information on whether the obtained solution is optimal for such parameters of the machine dynamics. The algorithm makes the accuracy dependent on the adopted dynamic parameters of the machine and the parameters of the PLC controller used in the CNC machine.
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Autorzy i Afiliacje

Bogdan Kwiatkowski
1
ORCID: ORCID
Tadeusz Kwater
2
ORCID: ORCID
Damian Mazur
1
ORCID: ORCID
Jacek Bartman
3
ORCID: ORCID

  1. Department of Electrical and Computer Engineering Fundamentals, Rzeszow University of Technology, ul. W. Pola 2, 35-959 Rzeszow, Poland
  2. Institute of Technical Engineering, State University of Technology and Economics in Jaroslaw, ul. Czarnieckiego 16, 37-500 Jaroslaw, Poland
  3. University of Rzeszow, ul. Rejtana 16C, Rzeszow, Poland

Abstrakt

Wykorzystanie sieci stacji referencyjnych zamiast pojedynczej stacji referencyjnej w pozycjonowaniu DGPS umożliwia modelowanie poprawek różnicowych dla dowolnej pozycji. W u·adycyjnej metodzie DGPS wykorzystuje się tylko jedną stację referencyjną, co powoduje degradację dokładności pozycji przy zwiększaniu odległości od tej stacji. W przypadku obserwacji nadliczbowych z dodatkowych stacji referencyjnych można wygenerować korekcje do pseudoodleglości dla wirtualnej stacji referencyjnej, zlokalizowanej w pobliżu wyznaczanego punktu. W pracy przedstawiono zastosowanie liniowej interpolacji do generowania korekcji do pseudoodleglości dla wirtualnej stacji referencyjnej i jej wpływ na dokładność wyznaczanych pozycji. Dodatkowo zastosowano procedury wygładzania korekcji. Testy numeryczne przedstawiono z wykorzystaniem permanentnych stacji referencyjnych sieci ASG-PL, przy wykorzystaniu odbiorników Ashtech μZ-CGRS. W przypadku wykorzystania tylko jednej stacji referencyjnej odchyłki wyznaczonych pozycji DGPS od wielkości rzeczywistych były w granicach l-2 m, natomiast w przypadku zastosowania trzech stacji referencyjnych oraz przedstawionej metodyki obliczeń dla sesji statycznej otrzymano pozycje z dokładnością rzędu 0.1-0.2 m.
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Autorzy i Afiliacje

Mieczysław Bakuła

Abstrakt

The author discusses the problem of reference of (nominal, verbal, adjectival groups, and adverbial) sentence components realized within coordinate relationships. Initially, the author refers to the theory of compactness as an explanation of the processes of generating coordinate constructions in the structure of simple sentences. There are evidences in favor of the thesis that the compactness theory does not explain coordination in semantic aspect. This applies not only to the structure with the main predicate with plural distribution (valence), but also to the entire range of coordination. The author distinguishes two types of references of coordinated phrases (in structure of a simple sentence): a distributional and a collective one. The constructional and semantic peculiarities of the expressions of both types have been described in relation to the contemporary Polish and Russian language.

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Autorzy i Afiliacje

Aleksander Kiklewicz

Abstrakt

Reference blocks are required for ultrasonic calibration and non-destructive testing (NDT). There are already in existence sets of reference blocks constructed according to American Society for Testing and Materials standards, but as the industry evolves, we need more reference blocks with varied designs. In this study, two reference blocks of steel and aluminum are constructed. These blocks have several sets of flat bottom holes (FBH) with different diameters (0.5, 1, 1.5, 2 and 2.5 mm), angles (45° and 90°) and placements. The novel constructed reference blocks are evaluated using the ultrasonic and a displacement measuring interferometer (DMI). They allow for detailed FBH characterization in terms of defining their location, diameter, depth and so on. The two techniques show consistency in the majority of the outcomes. The expanded uncertainty of readings is found to be ± 1.4 µm, according to DMI data. The findings show that the newly constructed blocks could be ideal for evaluating a variety of calibration factors including transducer sensitivity, dead zone, defect size, and depth. Furthermore, they can be used in NDT in various industries such as petroleum pipe production, steel manufacturing and so on.
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Autorzy i Afiliacje

Mirham A.Y. Barakat
1
Mohamed Abdelwahab
2
Alshaimaa Waheed Abdallah
2

  1. Ultrasonic Metrology Laboratory, National Institute of Standards PO Box: 136, Giza code 12211, Tersa Street, Haram, Giza, Egypt
  2. Line & End Secondary Standards Laboratory, National Institute of Standards PO Box: 136, Giza code 12211, Tersa Street, Haram, Giza, Egypt

Abstrakt

In this work, we present a failure detection system in sensors of any robot. It is based on the k-fold cross-validation approach and built from N neural networks, where N is the number of signals read from sensors. Our tests were carried out using an unmanned aerial vehicle (UAV, quadrocopter), where signals were read from three sensors: accelerometer, magnetometer and gyroscope. Artificial neural network was used to determine Euler angles, based on signals from these sensors. The presented system is an extension of the system that we proposed in one of our previous papers. The improvement shown in this work took place on two levels. The first one was related to improvement of a neural network՚s reproduction quality – we have replaced a recurrent neural network with a convolutional one. The second level was associated with the improvement of the validation process, i.e. with adding some new criteria to check the values of Euler՚s angles determined by the convolutional neural network in subsequent time steps. To highlight the proposed system improvement we present a number of indicators such as RMSE, NRMSE and NDR (Normalized Detection Ratio).

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Autorzy i Afiliacje

A. Świetlicka
K. Kolanowski
Pobierz PDF Pobierz RIS Pobierz Bibtex

Abstrakt

In this paper, the author proposed a new method for determination of vertical displacements with the use of hydrostatic levelling systems. The traditional method of hydrostatic levelling uses a rule in which a position of reference sensor is stable. This assumption was not adapted in the proposed method. Regarding the issue mentioned above, the reference sensor is treated in the same way as the others sensors that measure the liquid level. As a consequence of this approach there is a possibility of vertical displacement determination of both the reference sensor as well as the remaining controlled sensors. A theoretical considerations were supplemented with the practical examples. The possibility of calculating the vertical displacement of reference sensor is an undoubted advantage of the submitted proposal. This information enables more detailed interpretation of the vertical displacements results obtained from hydrostatic levelling systems. Thus, wider knowledge about maintenance of the entire examined object treated as the rigid body is obtained. The tests that were carried out confirm the theoretical assumptions and encourage to perform further, more precise empirical analyses.
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Bibliografia

[1] P. Bestmann, C. Barreto, C. Charrondiere, “Hydrostatic Levelling System Going Mobile”, in Proceedings 14 the International Workshop on Accelerator Alignment, 3–7 Oct 2016, Grenoble, France. 2016, pp. 1–6. [Online]. Available: https://inspirehep.net/literature/1722424. [Accessed: 2.02.2021].
[2] O. Burdet, “Experience in the Long-Term Monitoring of Bridges”, in 3rd fib International Congress (No.EPFLCONF163103). Washington DC, USA, 2010, pp. 108–113. [Online]. Available: https://infoscience.epfl.ch/record/163103. [Accessed: 2.02.2021].
[3] D. Filipiak–Kowszyk, W. Kaminski, “Determination of vertical displacements in relative monitoring networks”, Archives of Civil Engineering, 2020, vol. 66, no. 1, pp. 309–326, DOI: 10.24425/ace.2020.131790.
[4] H. Friedsam, J. Penicka, J. Error, “Deformation measurements at the vehicle tunnel overpass using a hydrostatic level system”, International Nuclear Information System, Report Number LS-255(ANL), University of North Texas Libraries, UNT Digital Library, 1996, pp. 1–14, DOI: 10.2172/399677.
[5] W. Habel, H.Kohlhoff, J. Knapp, R. Helmerich, “Monitoring System for Long-termevaluation of prestressed railway bridges in the new Lehrter Bahnhof in Berlin”, in Third World Conference on Strucutral Control, 7-12.4.2002, Como, Italy, 2002, pp. 1–6.
[6] W. Kaminski, “The Idea of Monitoring Surface Deformations on Unstable Ground with the Use of GPS Technology”, Bolletino di Geodesia e Scienze Affini, 2008, vol. 1, pp. 33–45.
[7] W. Kaminski, “The Conception of Monitoring the Superficial Deformation Located on theUnstable Foundation with the Usage of GPS Technology”, presented at 13th FIG International Symposium on Deformation Measurements and Analysis, 4th Symposium on Geodesy for Geotechnical and Structural Engineering, Lisbon, May 12–15, 2008.
[8] W. Kaminski, “Properties and analysis of the accuracy of estimation results obtained by the DiSTFA method in monitoring displacements and strains”, Geodesy and Cartography, 2009, vol. 58, no. 2, pp. 37–50.
[9] W. Kaminski, K. Makowska, “The Concept of Geodetic Analyses of the Measurement Results Obtained by Hydrostatic Leveling”, Geosciences, 2019, vol. 9, no. 10, pp. 1–12, DOI: 10.3390/geosciences9100406.
[10] D. Martin, “Deformation movements observed at the European Synchrotron Radiation Facility”, in Proceedings of The 22nd Advanced ICFA Beam Dynamics Workshop on Ground Motion in Future Accelerators, SLAC, Stanford University USA, 2000, pp. 341–357. [Online]. Available: https://www-project. slac.stanford.edu/lc/wkshp/gm2000/proceedings/article25.pdf. [Accessed: 2.02.2021].
[11] E. Meier, A. Geiger, H. Ingensand, H. Licht, P. Limpach, A. Steiger, R. Zwyssig, “Hydrostatic levelling systems: Measuring at the system limits”, Journal of Applied Geodesy, 2010, vol, 4, no. 2, pp. 91–102, DOI: 10.1515/jag.2010.009.
[12] L. Schueremans, K. Van Balen, P. Smars, V. Peeters, D. Van Gemert, “Hydrostatic Levelling System – monitoring of historical structures”, in Structural Analysis of Historical Constructions, P.B. Lourenço, et al., Ed., New Delhi, 2006, pp. 529–536.
[13] L. Schueremans, K. Van Balen, K. Brosens, D. Van Gemert, P. Smars, “Church of Saint-James at Leuven – structural assessment and consolidation measures”, International Journal of Architectural Heritage, 2007, vol. 1, pp. 82–107, DOI: 10.1080/15583050601126137.
[14] B. Szabo, J. Brzeski, J.M. González, “Use of linked monitoring systems for asset protection at finsbury circus during scl tunnelling for crossrail station”, Crossrail Learning Legacy, 2015. [Online]. Available: https://learninglegacy.crossrail.co.uk/documents/use-linked-monitoring-systems-asset-protection-finsbury-circus-scl-tunnelling-crossrail-station-2/. [Accessed: 2.02.2021].
[15] K. Wilde, M. Meronk, M. Groth, M. Miskiewicz, “Structure monitoring by means of hydrostatic levelling” (in Polish), in 27th Scientific Technical Conference on Building failures, 2015, pp. 278–284.
[16] Z.Wisniewski, “The idea of determination of parameters of location and shape of fundamental plates on the basis of free leveling”, in Materials from VI Scientific-Technical Session Current Scientific and Technical Problems of Geodetic Works, Gdansk –Sobieszewo, 6–7 October 1989 (in Polish). Gdansk, 1989.
[17] V.V. Yepin, R.V. Tsvetkov, I.N. Shardakov, A.P. Shestakov, “Estimation of hydrostatic level parameters for measuring vertical displacement fields of structures on a test stand”, AIP Conference Proceedings, 2018, vol. 2053, pp. 1–6, DOI: 10.1063/1.5084542.
[18] X. Zhang, Y. Zhang, L. Zhang, G. Qiu, D. Wei, “Power Transmission Tower Monitoring with Hydrostatic Leveling System: Measurement Refinement and Performance Evaluation”, Hindawi. Journal of Sensors, 2018, article ID 4176314, pp. 1–12, DOI: 10.1155/2018/4176314.
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Autorzy i Afiliacje

Waldemar Kamiński
1
ORCID: ORCID

  1. Faculty of Civil and Environmental Engineering, Gdansk University of Technology, ul. Gabriela Narutowicza 11/12, 80-233 Gdansk, Poland

Abstrakt

Evapotranspiration is the key and predominant component of the water balance in wetlands. Direct evapotranspiration measurements are challenging in wetlands due to their remoteness and high surface water level. This article describes the actual (ETa and reference evapotranspiration (ET0) from a cultivated wet meadow located in the Biebrza National Park – the largest national park in north-east Poland, Central Europe. The data were sourced from a micrometeorological station equipped with an eddy covariance system to measure heat and vapour fluxes and such meteorological elements as radiation balance components, air temperature and humidity. The values of directly measured ETa were presented daily in the context of available energy and ET0. Daily sums of ETa ranged from below 0.2 mm in winter to 6.5 mm in summer. The share of daily sums of ETa in the ET0 usually ranged from 50 to 60%, with extreme values from 10 to 170%.
Aside from giving more insight into Biebrza wetlands’ functioning, the actual data produced in this study may be used instead of indirect methods, which were used the most in modelling wetlands areas.

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Autorzy i Afiliacje

Małgorzata Kleniewska
1
ORCID: ORCID
Tomasz Berezowski
2
ORCID: ORCID
Dorota Mitrowska
1
ORCID: ORCID
Sylwia Szporak-Wasilewska
1
ORCID: ORCID
Wojciech Ciężkowski
1
ORCID: ORCID

  1. Warsaw University of Life Sciences, Faculty of Civil and Environmental Engineering, Institute of Environmental Engineering, Nowoursynowska St, 166, 02-787 Warsaw, Poland
  2. Gdansk University of Technology, Faculty of Electronics, Telecommunication and Informatics, Department of Geoinformatics, Gabriela Narutowicza St, 11/12, 80-233 Gdańsk, Poland

Abstrakt

Day-boundary discontinuity (DBD) is an effect present in precise GNSS satellite orbit and clock products originating from the method used for orbit and clock determination. The non-Gaussian measurement noise and data processing in 24 h batches are responsible for DBDs. In the case of the clock product, DBD is a time jump in the boundary epochs of two adjacent batches of processed data and its magnitude might reach a couple of ns. This article presents the four GNSS (Global Navigation Satellite System) systems DBD analysis in terms of change over an 8 year period. For each of 118 satellites available in this period, the yearly value of DBD was subject to analysis including standard deviation and frequency of outliers. Results show that the smallest DBDs appear in the GPS system, the biggest – for the BeiDou space segment. Moreover, the phenomenon of changes in DBDs over time is clearly seen at the beginning of the analysed period when the magnitude and number of the DBDs were larger than for current, newest clock products
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Autorzy i Afiliacje

Kamil Maciuk
1
ORCID: ORCID
Inese Varna
2
Jacek Kudrys
1

  1. Department of Integrated Geodesy and Cartography, AGH University, Mickiewicza Av. 30, 30-059 Krakow, Poland
  2. Institute of Geodesy and Geoinformatics, University of Latvia, Jelgavas St. 3, LV-1004, Riga, Latvia

Abstrakt

Face sketch synthesis (FSS) is considered an image-to-image translation problem, where a face sketch is generated from an input face photo. FSS plays a vital role in video/image surveillance-based law enforcement. In this paper, motivated by the recent success of generative adversarial networks (GAN), we consider conditional GAN (cGAN) to approach the problem of face sketch synthesis. However, despite the powerful cGAN model ability to generate fine textures, low-quality inputs characterized by the facial sketches drawn by artists cannot offer realistic and faithful details and have unknown degradation due to the drawing process, while high-quality references are inaccessible or even nonexistent. In this context, we propose an approach based on generative reference prior (GRP) to improve the synthesized face sketch perception. Our proposed model, which we call cGAN-GRP, leverages diverse and rich priors encapsulated in a pre-trained face GAN for generating highquality facial sketch synthesis. Extensive experiments on publicly available face databases using facial sketch recognition rate and image quality assessment metrics as criteria demonstrate the effectiveness of our proposed model compared to several state-of-the-art methods.
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Autorzy i Afiliacje

Sami Mahfoud
2 3
ORCID: ORCID
Messaoud Bengherabi
3
ORCID: ORCID
Abdelhamid Daamouche
4
ORCID: ORCID
Elhocine Boutellaa
4
ORCID: ORCID
Abdenour Hadid
1
ORCID: ORCID

  1. Sorbonne University Abu Dhabi, Sorbonne Center for Artificial Intelligence, Abu Dhabi, UAE
  2. University of Algiers 3, Faculty of Economic, Commercial and Management Sciences, Laboratory of Governance and Modernizationof Public Management, 02 Ahmed Ouaked Street Dely Ibrahim 16302, Algiers, Algeria
  3. Center for Development of Advanced Technologies, Telecom Division, P.O. Box 17 Baba-Hassen 16303, Algiers, Algeria
  4. SUniversity M’Hamed Bougara of Boumerdes, Institute of Electrical and Electronic Engineering, Laboratory of Signals and Systems,Boumerdes, 35000, Algeria

Abstrakt

W niniejszej pracy przedstawiono wyniki badań metody DiSTFA (Displacements and Strains with usage Transformation and Free Adjustnent) wyznaczania przemieszczeń i odkształceń powierzchni wyznaczanych w niestabilnych układach odniesienia. Wyprowadzono także macierze kowariancji umożliwiające ocenę dokładności wyników estymacji. Rozważania teoretyczne uzupełniono przykładem zastosowania na symulowanej, trójwymiarowej sieci geodezyjnej. Uzyskane wyniki zachęcają do przeprowadzenia dalszych, bardziej szczegółowych analiz na rzeczywistych sieciach geodezyjnych.
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Autorzy i Afiliacje

Waldemar Kamiński
ORCID: ORCID

Abstrakt

W pracy przedstawione zostały wyniki analizy niezawodności wewnętrznej modułu sieci trygonometrycznej niepełnej służącego do wyznaczenia składowych przemieszczenia stanowiska. Przeanalizowano wpływ na niezawodność takich czynników jak: liczba punktów kontrolnych, długość celowych oraz rozmieszczenie punktów kontrolnych w horyzoncie stanowiska. Dokonano analizy wpływu zróżnicowania wskaźników niezawodności liczonych dla poszczególnych obserwacji na skuteczność wykrywania nie przemieszczonych punktów kontrolnych. Zamieszczony przykład numeryczny ilustruje możliwość błędnej oceny stałości punktu kontrolnego na skutek dużego zróżnicowania wskaźników niezawodności. W podsumowaniu podano zalecenia do optymalnego, z punktu widzenia niezawodności, projektowania modułów pomiarowych stosowanych w sieciach trygonometrycznych niepełnych.
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Autorzy i Afiliacje

Mieczysław Kwaśniak

Abstrakt

Głównym celem artykułu jest przedstawienie i porównanie niektórych aspektów referencyjnej teorii znaczenia Hilarego Putnama i inferencyjnej teorii znaczenia Roberta B. Brandoma. Ma to służyć pokazaniu podobieństw i różnic tych teorii, a dzięki temu ich głębszemu zrozumieniu i trafniejszej ocenie jak te teorie opisują i wyjaśniają proces nabywania znaczenia przez wyrażenia językowe. W swej teorii znaczenia Putnam akcentuje referencję pojętą jako relacja łącząca wyrażenia językowe z rzeczywistością pozajęzykową (empiryczną). Natomiast Brandom podkreśla doniosłość inferencji, dzięki której dookreślane jest znaczenie wyrażeń użytych w przesłankach i wniosku wnioskowania. Jednak wobec jego teorii znaczenia stawiany jest zarzut, że minimalizuje ona rolę elementu empirycznego (wyrażeń wskazujących itp.). Próbuje on bronić swojego stanowiska w anaforycznej teorii referencji. Putnam podobnie jak i Brandom twierdzili, że – jako podmioty poznające rzeczywistość pozajęzykową – nie jesteśmy w sytuacji, w której rzeczywistość dociera do nas w sposób bezpośredni. W poznaniu rzeczywistości odgrywa rolę sama rzeczywistość, ale i to jaka jest nasza aparatura poznawcza.

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Autorzy i Afiliacje

Robert Kublikowski

Abstrakt

The development of cities and peri-urban areas is exerting an increasingly strong impact on the natural environment and, at the same time, on the living conditions and health of people. Problems and challenges that need to be addressed include increasing air pollution in these areas, formation of a surface urban heat island (SUHI), water management disruptions (water scarcity or excess), and the destruction of natural habitats. One of the solutions that contributes to climate change mitigation is the introduction of blue-green infrastructure into the city space and urbanised areas. The research objective was to identify spatial features (geodata) that determine the optimum location of selected blue-green infrastructure (BGI) components, acquire them, and then use the Geographical Information System (GIS) to determine their optimum locations. As the first step, cartographic models were developed which indicated areas that enable the development of selected blue-green infrastructure components in the Olsztyn city area, Warmińsko-Mazurskie Province, Poland. The models were juxtaposed with other two models developed by the authors, i.e. a surface urban heat island model and a demographic model that showed the age structure of the city’s population. Consequently, maps with potential locations for the blue-green infrastructure were developed, while taking into account reference data from the National Land Surveying and Cartographic Resource and Landsat 8 images.
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Autorzy i Afiliacje

Szymon Czyża
1
ORCID: ORCID
Anna M. Kowalczyk
2
ORCID: ORCID

  1. University of Warmia and Mazury in Olsztyn, Faculty of Geoengineering, Institute of Geodesy and Civil Engineering, Department of Geoinformation and Cartography, Olsztyn, Poland
  2. University of Warmia and Mazury in Olsztyn, Faculty of Geoengineering, Institute of Geodesy and Civil Engineering, Department of Geodesy, St. Heweliusza 12, Olsztyn, Poland

Abstrakt

W artykule przedstawiam koncepcję plików mentalnych (mental files), zarówno w jej embrionalnej postaci, stworzonej przez P.F. Strawsona, jak i we współczesnej, rozwijanej przez F. Recanatiego, rekonstruując główne idee motywujące jej wprowadzenie. Chodzi tu w szczególności o problem informatywności zdań identycznościowych (dla Strawsona) i problem rozwikłania kontrowersji między syngularyzmem i deskryptywizmem (dla Recanatiego). Przedstawiam również propozycję dalszego wzbogacenia tej koncepcji w oparciu o inne wątki Strawsonowskiej filozofii języka. Główne idee tej propozycji to: uwzględnienie w strukturze plików bloku metadanych, zawierających informacje o samych plikach jako mentalnych partykulariach, i przyjęcie Strawsonowskiego referring use jako mechanizmu tworzącego lub aktywującego pliki mentalne.

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Autorzy i Afiliacje

Mieszko Tałasiewicz

Abstrakt

In his 1903 monograph Principles of Mathematics Bertrand Russell formulated a theory which interpreted a proposition expressed by a sentence as a unitary bond of referents (meanings) of its parts. In the paper I argue that the problem he faced in his attempt to define the unity of proposition is a special case of a wider philosophical problem of the relation between language and the world. Mentioned for the first time by Plato in Parmenides and then repeated by Aristotle in Metaphysics, infinite regress formulated as ʻthe third man argument’ presented a problem for Francis Bradley, Bertrand Russell and Gottlob Frege. It was reformulated in syntactic terms by Hans Reichenbach and used by Donald Davidson as an argument against referential semantics. The conclusion of the paper is as follows: ʻthe third man argument’ is a result of projecting syntactic structures of language on metaphysically conceived referential semantics. It does not undermine ontology conceived as an investigation of possible beings.
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Autorzy i Afiliacje

Janusz Maciaszek
1
ORCID: ORCID

  1. Uniwersytet Łódzki, Instytut Filozofii, ul. Lindleya 3/5, 90-131 Łódź

Abstrakt

Ultrasonic Non-Destructive Testing (NDT) is a powerful tool used for testing, verification, and inspection of material, especially for quality control and assurance. The key applications are the identification of flaws, cracks, irregularities, defects, and estimation of material thickness. The standard documents available for ultrasonic NDT are used as a guideline for the specifications and certification of the calibration reference standard block (RSB). The method for metrological characterization of the testing blocks is not specifically addressed in standard documents and is left to the wisdom of metrologists working in the ultrasonic calibration laboratories to adopt the suitable one. The ultrasonic flaw detector (UFD) is used most widely in ultrasonic NDT. The International Institute of Welding (IIW) V1 RSB standard is used as a reference to ascertain the functionalities of UFDs. In this article, we have proposed a new methodology for calibration of RSB and evaluation of associated measurement uncertainty along with influencing parameters. The proposed method conforms to the international standard ISO 2400:2012 and Indian standard IS 4904:2006 for validation purposes. According to these standards, the clauses for RSB e.g., dimension and quality of material have been examined. The expanded measurement uncertainty in thickness, ultrasonic longitudinal velocity, ultrasonic attenuation, parallelism and perpendicularity is ±0.068 mm, ±6.70 m/s, ±0.22 dB, and ±0.066 mm, respectively. The measurement uncertainty of these parameters is well within as per clauses stipulated in the standard documents except the ultrasonic longitudinal velocity for the IS standards.
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Autorzy i Afiliacje

Kalpana Yadav
1 2
Sanjay Yadav
1 2
P.K. Dubey
1 2

  1. Pressure, Vacuum and Ultrasonic Metrology, Division of Physico-Mechanical Metrology, CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
  2. Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India

Abstrakt

Increasingly complex design systems require an individual approach when determining the necessary design parameters. As soils are characterized by strong strain-dependent nonlinearity, test methods used to characterize the subsoil should be carefully selected, in terms of their "sensitivity" as well as suitability for the analyzed type of problem. When direct measurements are not available, while design calculation models require specific parameters, indirect parameter estimation may be used. This approach requires calibration and validation of empirical correlations, based on well documented database of tests and case studies. One of the parameters often used, when analyzing soil-structure interaction problems, is the shear stiffness of the soil and its strain-dependent degradation. The aim of the article is to present the procedure for description and evaluation of soil stiffness based on field tests (CPTU, DMT and SDMT) and a large number of reference curves obtained from laboratory tests (TRX) for selected soil types. On the basis of the given algorithm, it is possible to obtain a stiffness module G0 value at any level of deformation, based on in-situ tests.

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Autorzy i Afiliacje

T. Godlewski
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Abstrakt

DC motors have wide acceptance in industries due to their high efficiency, low costs, and flexibility. The paper presents the unique design concept of a multi-objective optimized proportional-integral-derivative (PID) controller and Model Reference Adaptive Control (MRAC) based controllers for effective speed control of the DC motor system. The study aims to optimize PID parameters for speed control of a DC motor, emphasizing minimizing both settling time (Ts ) and % overshoot (% OS) of the closed-loop response. The PID controller is designed using the Ziegler Nichols (ZN) method primarily subjected to Taguchi-grey relational analysis to handle multiple quality characteristics. Here, the Taguchi L9 orthogonal array is defined to find the process parameters that affect Ts and %OS. The analysis of variance shows that the most significant factor affecting Ts and %OS is the derivative gain term. The result also demonstrates that the proposed Taguchi-GRA optimized controller reduces Ts and %OS drastically compared to the ZN-tuned PID controller. This study also uses MRAC schemes using the MIT rule, Lyapunov rule, and a modified MIT rule. The DC motor speed tracking performance is analyzed by varying the adaptation gain and reference signal amplitude. The results also revealed that the proposed MRAC schemes provide desired closed-loop performance in real-time in the presence of disturbance and varying plant parameters. The study provides additional insights into using a modified MIT rule and the Lyapunov rule in protecting the response from signal amplitude dependence and the assurance of a stable adaptive controller, respectively.
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Bibliografia

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[2] Li Z., Xia C., Speed control of brushless DC motor based on CMAC and PID controller, Proceedings of the 6th IEEEWorld Congress on Intelligent Control and Automation, Dalian, China, pp. 6318–6322 (2016).
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[4] Templos-Santos J.L., Aguilar-Mejia O., Peralta-Sanchez E., Sosa-Cortez R., Parameter tuning of PI control for speed regulation of a PMSM using bio-inspired algorithms, Algorithms, vol. 12, no. 3, pp. 54–75 (2019), DOI: 10.3390/a12030054.
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Autorzy i Afiliacje

Mary Ann George
1
ORCID: ORCID
Dattaguru V. Kamat
1
ORCID: ORCID

  1. Department of Electronics and Communication Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education (MAHE), Manipal – 576104, Udupi District, Karnataka State, India

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