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Wyświetlanie 1-15 z 42
Tytuł:
Инновационное развитие аграрного сектора экономики Украины
Innovative Economic Development of Ukraine in The Agricultural Sector
Innowacyjny rozój sektora agrarnego gospodarki Ukrainy
Autorzy:
Анна, Клименко
Powiązania:
https://bibliotekanauki.pl/articles/507009.pdf
Data publikacji:
2014-09-01
Wydawca:
Państwowa Uczelnia Stanisława Staszica w Pile
Tematy:
агроинновация
агрострахование
агрохолдинг
волатильность
диспаритет
мобилизация
трансфер
экосеть
agroinnovatsiya
agricultural insurance
agricultural holding
volatility
disparity
mobilization
transfer
еconet
ubezpieczenia rolne
gospodarstwo rolne
zmienność
różnice
mobilizacja
przekazywanie
Opis:
На современном этапе экономика Украины, включая её агропромышленный комплекс, находится в состоянии кризиса. Негативное влияние имеют структурные, межотраслевые диспропорции, накопившиеся в народном хозяйстве на протяжении десятилетий, которые и привели к острому дефициту товаров производственного и непроизводственного назначения. Кризис усиливается разбалансированностью финансово-кредитной системы, несоответствием сложившихся управленческих структур потребностям экономического развития.
At the present stage of Ukraine's economy, including its agriculture, is in crisis. The negative impact of structural intersectoral imbalances have accumulated in the national economy for decades, which has led to on acute shortage of capital and non-industrial goods. The crisis has intensified the imbalance of the financial and credit system, and mismatched the existing administrative structures to the needs of economic development.
Obecnie gospodarka Ukrainy, w tym rolnictwo, znajduje się w głębokim kryzysie. Negatywny wpływ mają strukturalne, międzysektorowe dysproporcje, które nagromadziły się w gospodarce narodowej przez dziesięciolecia, co doprowadziło do ostrego deficytu towarów. Kryzys nasila się poprzez system finansowo-kredytowy i niedopasowanie istniejących struktur zarządzania do potrzeb rozwoju gospodarki.
Źródło:
Progress in Economic Sciences; 2014, 1; 29-43
2300-4088
Pojawia się w:
Progress in Economic Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wage disparities in Poland: Econometric analysis
Autorzy:
Witkowska, Dorota
Powiązania:
https://bibliotekanauki.pl/articles/452766.pdf
Data publikacji:
2012
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
labor market
wage disparity
ordered multinomial logit model
exponential regression
Opis:
The aim of our research is to identify determinants influencing wages in Poland in the years 2005 and 2009, and to find out if wages obtained by men and women depend on the same factors. Investigation is provided on the basis of data from the Polish Labor Force Survey, employing ordered multinomial logit models and exponential regression.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2012, 13, 2; 115-124
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nierównomierna modernizacja a przeobrażenia struktury społecznej w Chińskiej Republice Ludowej.
Uneven Modernization and Transformation of the Social Structure in the People’s Republic of China.
Autorzy:
Wardęga, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/506049.pdf
Data publikacji:
2015
Wydawca:
Krakowska Akademia im. Andrzeja Frycza Modrzewskiego
Tematy:
China
modernization
transformation
social disparity
Opis:
China’s economic transformation process, which started in 1978 under the banner of the Four Modernizations, is the deepest transformation in the long history of this country. The Communist Party of China carries out modernization in some areas, while limiting changes in others. Economic development has been undoubtedly impressive, but also unbalanced. It created problems such as inequality and social contrasts between urban and rural areas, as well as between coast and interior provinces, the division of the society into different categories of citizens, and corruption. There is also the question about the relationship between economic development and democratization. The article is an introduction to explain these phenomena.
Źródło:
Krakowskie Studia Międzynarodowe; 2015, 3; 55-70
1733-2680
2451-0610
Pojawia się w:
Krakowskie Studia Międzynarodowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza wpływu zmiany ordynacji wyborczej na życie polityczne społeczności lokalnych: dysproporcje wyborcze w pięciu miastach pomorskich (2006 – 2014)
Analysis of change of the electoral systems’ impact on political life of local communities: vote disparity in five Pomeranian towns (2006 – 2014)
Autorzy:
Wałdoch, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/901942.pdf
Data publikacji:
2016
Wydawca:
Gdańska Wyższa Szkoła Humanistyczna
Tematy:
demokracja lokalna
gmina
jednomandatowe okręgi wyborcze (JOW)
metoda większościowa
ordynacja wyborcza
district
electoral system
local democracy
majoritarian methods
single-member district
Opis:
New electoral law has been in force in Poland since 2011. Analysis of the change of electoral law and electoral system is a key issue in this study and it includes earlier elec-tions. In a chronological perspective this study cover years 2006 – 2014. An author has highlighted several variables that have severe impact on political life of local communi-ties. Thus study is focused on: political interest of Civic Platform (PO) in changing electoral system; frequency of elections; representative level of citizens in community board – town councils; concentration of power by wining committees, rise of ineffective votes. As a result of conducted analysis and synthesis earlier unknown phenomenon was indicated – a correlation of high importance was traced between the average number of citizen per one candidate and the level of power concentration by wining committee.
Źródło:
Studia Gdańskie. Wizje i rzeczywistość; 2016, 13; 255-272
1731-8440
Pojawia się w:
Studia Gdańskie. Wizje i rzeczywistość
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Political Preferences of QCA Methods Institutes? A Comment on the Availability and Gender Gap Disparity Problems
Autorzy:
Tatarczyk, Dawid
Powiązania:
https://bibliotekanauki.pl/articles/1375457.pdf
Data publikacji:
2021-07-03
Wydawca:
Uniwersytet Śląski. Wydział Nauk Społecznych
Tematy:
QCA
methods institutes
gender gap
Opis:
In this research note, I examine a set of two interrelated questions about the Qualitative Comparative Analysis (QCA) methods institutes. First, I assembled and analyzed a novel dataset that tracks every QCA related training worldwide from 2002 to 2018. My examination finds that although QCA trainings are becoming more popular in Europe, the US is still the single most frequent host country for such events. Secondly, I examine the extent to which gender gap exists among QCA instructors. My findings show that female QCA instructors are severely under-represented, which likely limits their academic and professional opportunities. Thus, the QCA research community appears to be marked by the same structural challenges to diversity and gender equality as other areas of political science. Overall, this paper should of interest to scholars interested in the impact of academic infrastructures on future research trajectories as well as those concerned about gender equality in academia.
Źródło:
Political Preferences; 2021, 28; 23-31
2449-9064
Pojawia się w:
Political Preferences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Disparity compute methods in three - dimensional scene reconstruction for overhead travelling crane work space visualization
Autorzy:
Szpytko, J.
Hyla, P.
Powiązania:
https://bibliotekanauki.pl/articles/246837.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
material handling devices
stereovision
disparity map
work space modelling
Opis:
The problem of ensuring the safe and efficient cranes operations in automated manufacturing processes involves the needs of the operating workspace identification, especially in the automation mode. However, this paper describes the problem of overhead travelling crane's workspace identification with the stereovision. Main authors’ attention was focused on the stereo pictures matching problem through optimization exist disparity computation methods with algorithms optimization by completion with implement correlation matching algorithms. The stereo system is based on the single camera localized under the crane trolley that allows obtaining the sequences of stereo snapshots of crane workspace during the crane or trolley movement. Typically, disparity was produce by calculating the displacement of each pixel of the stereo image along an epipolar line. The disparity software optimization was based on matching algorithms architecture. In this article, the disparity optimization procedure achieved by produce disparity on the ROI (Region of Interest) method is described. Disparity was obtained with the help of sets homologous pixels collections. These sets were determinate with variety kind of similarity measures, which was implemented to disparity search algorithm. Each disparity map (based on the separate similarity measure) was tested under outward appearance and computing time criteria.
Źródło:
Journal of KONES; 2012, 19, 3; 421-428
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Risk behaviours associated with hepatitis C infection: application of a syndemic effects framework in NHANES
Autorzy:
Stefanac, Sinisa
Haider, Sandra
Dorner, Thomas
McDermott, Daragh
Ilie, Petre
Powiązania:
https://bibliotekanauki.pl/articles/1491142.pdf
Data publikacji:
2021-04-05
Wydawca:
Atena Research Association
Tematy:
Hepatitis C Virus
Syndemic
Intravenous Drug Use
Risk
Disparity
Opis:
Objectives: To apply syndemic theory to investigate the risk of hepatitis C virus (HCV) infection in the US population. Methods: National representative data were from the National Health and Nutrition Examination Survey. We extracted and aggregated data on HCV antibody test, sociodemographic characteristics, alcohol and drug use, depression, sexual behaviour and sexually transmitted illnesses from 2005-2006 to 2011-2012. The study sample was restricted to men and women aged 20-59 years given the upper age limit of the risk factors used for the analysis. Results: Overall, 11,593 people were included in the analysis (52.2% female). Higher prevalence of HCV, excessive alcohol consumption and drug use were found in men. Men also had higher odds of HCV in comparison to women among younger (20-39 years old) OR 1.37 (95%CI 1.36-1.37) and middle-aged adults (40-59 years old) OR 2.04 (95%CI 2.03-2.04). Among younger adults, non-Hispanic black and Hispanic people were found to have a lower likelihood of testing positive, OR 0.35 (95%CI 0.35-0.35) and OR 0.30 (95%CI 0.30-0.30), respectively. However, in the middle-aged adults non-Hispanic black people were found to have a higher likelihood of testing positive OR 1.45 (95%CI 1.45-1.46). Analysis showed that for each additional risk factor associated with HCV infection there is an additional increase in the risk OR 1.55 (95%CI 1.55-1.55). Conclusions: For every additional risk factor for HCV a person is exposed to, the overall risk of HCV increases.
Źródło:
Atena Journal of Public Health; 2021, 3; 5-5
2695-5911
Pojawia się w:
Atena Journal of Public Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prototypowy system stereowizyjny typu Machine Vision –działanie i dokładność
Prototype sterovision system of machine vision type – operation and accuracy
Autorzy:
Rzeszotarski, D.
Sawicki, P.
Ostrowski, B.
Powiązania:
https://bibliotekanauki.pl/articles/130480.pdf
Data publikacji:
2007
Wydawca:
Stowarzyszenie Geodetów Polskich
Tematy:
kamera cyfrowa
system stereowizyjny
dysparycja
dokładność
procesor sygnałowy
digital camera
stereovision system
disparity
accuracy
signal processor
Opis:
W pracy przedstawiono istotę działania i wstępna ocenę dokładności prototypowego cyfrowego systemu stereowizyjnego, który stanowi podstawę konstrukcji urządzenia wspomagającego osobę niewidoma w percepcji otoczenia (projekt badawczy realizowany w Instytucie Elektroniki Politechniki Łódzkiej). W prototypowej wersji systemu zastosowano 2 kolorowe kamery cyfrowe Flea® firmy Point Grey (rozdzielczość 1024×768, interfejs IEEE 1394), wyposażone w obiektywy Ernitec f = 3.5 mm. Kalibracja kamer została przeprowadzona za pomocą programu wspomaganego biblioteką OpenCV (Intel® Open Source Computer Vision Library). Proces automatycznego wyznaczenia gęstej mapy dysparycji (mapy paralaks podłu_nych) został wsparty algorytmem dopasowującym obszary (winx×winy - okno korelacji). Zastosowana miara podobieństwa jest suma wartości bezwzględnych różnic SAD (Sum of Absolute Differences), obliczana technika „przesuwanych okien” (sliding window). Poszukiwanie wiarygodnych minimów miary SAD jest wykonywane w czterech krokach przez znalezienie minimum globalnego SADmin oraz trzech najmniejszych wartości SAD1 < SAD2 < SAD3. Za pomocą mapy dysparycji i parametrów orientacji zewnętrznej modelu (macierze przekształcenia MR , ML) wyznaczane są współrzędne 3D sceny. Algorytm segmentacji sceny 3D realizuje w trybie iteracyjnym detekcje płaszczyzn oraz obiektów „przeszkód”. Procedura akwizycji obrazów cyfrowych, generowanie mapy dysparycji i segmentacji zostały zaimplementowane na platformie procesora sygnałowego DSP (Digital Signal Processor). Ocenę dokładności systemu wykonano na podstawie stereopar zdjęć cyfrowych (baza zdjęć B = 80.75 mm) dwóch przestrzennych pól testowych. Współrzędne 3D punktów zostały wyznaczone na podstawie wygenerowanej gęstej mapy dysparycji (okno korelacji wyniosło 25×25pikseli). Algorytm dysparycji wykrył średnio ca 72 % sygnalizowanych punktów kontrolnych. Średnia odchyłka kwadratowa dla współrzędnych 3D w układzie współrzędnych systemu stereowizyjnego wyniosła _XYZ = ±39.6 mm (test 1) oraz _XYZ = ±124.1 mm (test 2). Średnia odchyłka kwadratowa dla współrzędnych X, Y, Z po transformacji 3D do układu obiektu wyniosła _XYZ = ±72 mm (test 1) oraz _XYZ = ±74 mm (test 2).
The prototype of digital stereovision system is presented along with its procedures, main parts and its accuracy evaluation. The presented system is a prototype for vision module in electronic travel aid device for the blind, being designed and developed in Institute of Electronics in Technical University of Lodz. The system consists of two Flea type Point Grey digital cameras (resolution of 1024×768, IEEE 1394 interface) and Ernitec f = 3.5 mm objective). The cameras calibration was performed by means of the software using OpenCV library (Intel® Open Source Computer Vision Library). The process of automatic computation of dense disparity maps was performed by the stereo matching local algorithm (with correlation window of a given size). The measure of similarity is defined as a sum of absolute differences (SAD) between pixels form windows surrounding the compared pixels. The SAD values are calculated with the use of sliding window method in order to obtain real time speed of dense disparity maps computation. The procedure of finding rob ust minimum SAD values consists of four steps: searching for global minimum value SADmin and three other smallest values SAD1 < SAD2 < SAD3. The 3D scene coordinates are calculated by means of disparity map values and model exterior orientation parameters (transformation matrices MR , ML). 3D scene segmentation algorithm detects planes and surrounding objects, obstacles. The digital images acquisition, disparity and segmentation map generation are implemented on the DSP (Digital Signal Processor) platform. The accuracy of the system is evaluated by analysing stereo pairs of digital pictures of two different 3D test fields. The base line of stereoscopic set of cameras used in the system was B = 80.75 mm. 3D coordinates were computed by means of dense disparity map values (search window of the matching algorithm was of the size 25×25 pixels) The average effectiveness of signalised check points detection by disparity algorithm was 72 %. RMSE for 3D object coordinates in the stereovision system was _XYZ = ±39.6 mm (test 1) and _ XYZ = ±124.1 mm (test 2). RMSE for X,Y,Z coordinates after 3D transformation into the object coordinates system was _XYZ = ±72 mm (test 1) and _XYZ = ±74 mm (test 2).
Źródło:
Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2007, 17b; 717-727
2083-2214
2391-9477
Pojawia się w:
Archiwum Fotogrametrii, Kartografii i Teledetekcji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Delineating regional differentiation on the development of the railway infrastructure in northeast India through an efficient synthetic indicator
Autorzy:
Roy, Stabak
Hore, Samrat
Mitra, Saptarshi
Chaberek, Grażyna
Powiązania:
https://bibliotekanauki.pl/articles/2203903.pdf
Data publikacji:
2022
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
railway geography
causality of railway development
spatial railway differentiation
regional studies
regional disparity
Composite Dimension Index
geografia kolejowa
przyczynowość rozwoju kolei
przestrzenne zróżnicowanie kolei
badania regionalne
rozbieżności regionalne
Opis:
The north-eastern region of India presents intra-regional disparity, which is reflected in every aspect of development. The transport sector, especially railway transportation, is one of the important aspects, and the development of railway infrastructure seems to be very different in every region. The research question addressed in this study was “Which factors, geo-physical or socio-economic, influenced the variation in the level of railway development in Northeast India?” The aim of the study was to delineate regional differentiation on railway development in Northeast India and to analyse the reasons for different development patterns of railway lines among the north-eastern states. The research was based on secondary data collected from multiple sources, and the existing synthetic indicator was applied for the classification of eight states based on their railway infrastructural status. An alternative approach called the alternative synthetic indicator has been proposed and found to be more efficient than the existing synthetic indicator. The degree of inequality among the northeastern states by considering railway infrastructural variables was measured by plotting a Lorenz curve; the corresponding Gini coefficient specifies the unequal distribution of railway infrastructure among all the northeastern states. The causality of such unequal development has been analysed through a correlation test by defining the composite dimension index. The analysis revealed that all the externalities of regional inequality significantly influence the development of railway lines in northeastern states. Environmental determinism plays a crucial role in railway development in Northeast India, but political willingness is also crucial for creating an actual state of differentiation and will play a special role in the future.
Źródło:
Transport Problems; 2022, 17, 3; 149--162
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the effect of city growth on the development of hinterland region in Cianjur Regency
Autorzy:
Rizal, Achmad
Nurruhwati, Isni
Powiązania:
https://bibliotekanauki.pl/articles/1076570.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Cianjur Regency
disparity
growth center area
hinterland region
Opis:
This study aims to determine the effect of the growth center through the magnitude of economic growth in the growth center region and its influence on the economic growth of the hinterland region in 2013 to 2017 by using correlation analysis and to find out the income gaps that occur in the growth center and the hinterland region in 2013 until with 2017 using Williamson's index analysis. This study uses an explanatory method with secondary data cited from the Office of the Central Statistics Agency of Cianjur District and literature studies. Correlation results show that the center of the development sub-region is able to influence the development and growth of the back area (hinterland) and vice versa. Williamson index analysis results show that the city area of Cianjur Regency as a center of growth has a role in the development of the region in Sub-district of Cianjur Regency, this is indicated by the low value of the Williamson index that occurs as a whole between the growth center and the hinterland area of 0.54958 with the lowest average value 0.42988 and the highest average value of 0.74544.
Źródło:
World Scientific News; 2019, 115; 260-268
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zróżnicowanie warunków hydrodynamicznych i granulometrycznych podczas tworzenia się łachy środkowo-korytowej w potoku górskim o dnie żwirowym
Disparity of hydrodynamic and granulometric conditions during creation the sandbank of conical-channel shape in mountain stream with gravelly bottom
Autorzy:
Radecki-Pawlik, A.
Bencal, J.
Kowalski, M.
Radecki-Pawlik, B.
Powiązania:
https://bibliotekanauki.pl/articles/61461.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
potoki gorskie
warunki hydrauliczne
dno zwirowe
sklad granulometryczny
formy denne
lachy srodkowo-korytowe
Opis:
Praca ma na celu poznanie zróżnicowania granulometrycznego i warunków hydraulicznych charakteryzowanych przez parametry przepływu w rejonie występowania łachy korytowej o budowie roztokowej. Badania skoncentrowano na poznaniu budowy wierzchniej warstwy łachy roztokowej (jej opancerzenia), wyznaczeniu parametrów sedymentologicznych, przeprowadzeniu pomiarów prędkości wody, a na ich podstawie wyznaczeniu podstawowych parametrów hydraulicznych przepływu w charakterystycznych punktach badanego odcinka. Próbki materiału tworzącego łachy pobrano w dziesięciu przekrojów pomiarowych założonych w obrębie wyznaczonej do badań łachy korytowej. Na podstawie uzyskanych w ten sposób danych granulometrycznych sporządzono histogramy uziarnienia i krzywe przesiewu oraz obliczono następujące parametry granulometryczne: wskaźnik wysortowania według Traska, stopień wysortowania według Hazena, wskaźnik różnoziarnistości według Knoroza, wskaźnik jednostajności (cecha dominacji) według Kollisa, współczynnik skośności według Traska i średnie odchylenie standardowe według Folka. Pomiary prędkości wody umożliwiły wyznaczenie wielkości takich jak: prędkość przepływu, prędkość średnią, parametry hydrauliczne (liczba Freuda, Reynoldsa, prędkość ścinania, naprężenia styczne, współczynnik oporu f) przepływu. W pracy zwrócono szczególną uwagę na sposób przepływu strug wody ponad formą korytową oraz w jej bezpośrednim sąsiedztwie, jak też jego wpływ na ewolucję łachy roztokowej. Badania zrealizowano w zlewni rzeki Skawy, w rejonie przekroju Zembrzyce w Karpatach Polskich.
The main aim of the work is to presents the results of examination of some basic granulometric and hydraulic parameters of the discharge within the region of the braided river bar formation. The research was concentrated on the investigation of the armoring layer of the braided bar in terms of the basic sedimentological parameters, and this way on understanding the forming process of this structure. At the same time hydrological measurements were carried out in the region of the bar and on the basis of these hydraulics calculations of hydrodynamics parameters were performed. For granulometric investigations the samples of the gravel forming the braided bar were collected in ten cross sections of the bar. On the basis of sieve analysis the grain size curves were prepared, so the main granulometric characteristics were described, as follows: Trask sorting coefficient, Hazen sorting coefficient, Knoroz grain parameter, Kollis domination parameter, Trask skewness coefficient and Folk mean deviation. The measurements of water velocities just over the river bed allowed calculating main hydraulics parameters, such as: shear velocity, shear stresses, Froude number, Reynolds number, flow resistance coefficient within the region of the braided middle gravel bar formation in the mountainous river. Hydrodynamics survey was done just immediately after the spring flood in 2003 when the braided bar developed within the river channel. The number of observations connected with the hydrodynamics influence on stream braided bar formation was done which describe the braided process of the middle braided bar development. The study was undertaken in the Skawa River at the Polish part of the Carpathian Mountains.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2005, 4
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
One China or Many Chinas? Between Integration and Disintegration-Some Sociological Reflections
Autorzy:
Pyffel, Radosław
Powiązania:
https://bibliotekanauki.pl/articles/1929565.pdf
Data publikacji:
2009-09-29
Wydawca:
Polskie Towarzystwo Socjologiczne
Tematy:
globalization in China
integration
disintegration
unequal development
income disparity
Opis:
The author who for the first time found himself in China 10 years ago as a fresh graduate of sociology, describes the dynamic changes which, during that time took place in that country. This sociological account, is drawn on personal experiences and also on the famous sentences regarding the history of China “the empire, long divided, must unite, long united, must divide.” The basic question is, will China-whose economic and civilization disparities were clearly exposed in the last decade, and cultural differences between provinces, traditional and ever existing in that country, have overlapped-find a way of preventing its disintegration in several regions? The article shows that advantages of China’s globalization and opening to the world have been disposed irregularly, dividing the country into the rich East, the Interior supplying cheap manpower, and the West integrated with the rest of the country but largely inhabited by ethnic minorities. Also the East of the country, a beneficiary more of globalization than transformation, is divided into four zones of development concentrated around North-East China, Beijing, Shanghai and Guangzhou, each of the four with a different adaptive strategy in the face of globalization and quite often competing for investments, markets and young talents. Nevertheless the author believes that China’s disintegration would be “irrational,” as its integrity is supported by the logic of globalization, in which a merger of a few organisms helps solve global problems and brings profits-even if they are spread irregularly-to all Chinese provinces and, what is most important, it gives China an international status of superpower, which realizes the interests of its thirty-one provinces at the international arena more effectively than any of those provinces could do on its own, without the support of the others.
Źródło:
Polish Sociological Review; 2009, 167, 3; 461-476
1231-1413
2657-4276
Pojawia się w:
Polish Sociological Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Automatic calibration of stereoscopic cameras in an electronic travel aid for the blind
Autorzy:
Pełczyński, P.
Ostrowski, B.
Powiązania:
https://bibliotekanauki.pl/articles/220839.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
stereovision
canonical setup
extrinsic parameters
image rectification
disparity
Opis:
The article describes a technique developed for identification of extrinsic parameters of a stereovision camera system for the purpose of image rectification without the use of reference calibration objects. The goal of the presented algorithm is the determination of the mutual position of cameras, under the assumption that they can be modeled by pinhole cameras, are separated by a fixed distance and are moving through a stationary scene. The developed method was verified experimentally on image sequences of a scene with a known structure.
Źródło:
Metrology and Measurement Systems; 2013, 20, 2; 229-238
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Motion vector estimation of a stereovision camera with inertial sensors
Autorzy:
Pełczyński, P.
Ostrowski, B.
Rzeszotarski, D.
Powiązania:
https://bibliotekanauki.pl/articles/221704.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
passive navigation
motion vector
disparity
feature points
Opis:
The aim of the presented work was the development of a tracking algorithm for a stereoscopic camera setup equipped with an additional inertial sensor. The input of the algorithm consists of the image sequence, angular velocity and linear acceleration vectors measured by the inertial sensor. The main assumption of the project was fusion of data streams from both sources to obtain more accurate ego-motion estimation. An electronic module for recording the inertial sensor data was built. Inertial measurements allowed a coarse estimation of the image motion field that has reduced its search range by standard image-based methods. Continuous tracking of the camera motion has been achieved (including moments of image information loss). Results of the presented study are being implemented in a currently developed obstacle avoidance system for visually impaired pedestrians.
Źródło:
Metrology and Measurement Systems; 2012, 19, 1; 141-150
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Path planning optimization and object placement through visual servoing technique for robotics application
Autorzy:
Patel, Sumitkumar
Israni, Dippal
Shah, Parth
Powiązania:
https://bibliotekanauki.pl/articles/950976.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
visual servoing
features
coordinates
kinematics
disparity
optimization
motion estimation
Opis:
Visual servoing define a new methodology for vision based control in robotics. Vision based action involve number of actions that move a robot in response of results of camera analysis. This process is important to operate and help robot to achieve a specific goal. The main purpose of visual servoing consists of considering a vision system by specific sensor dedicated to involve control servo loop and task. In this article, three visual control scheme: Image Based Visual Servoing (IBVS), Position Based Visual Servoing (PBVS) and Hybrid Based Visual Servoing (HBVS) are illustrated. The different terminologies are represented through effective workflow of robot vision. IBVS method concentrate on the image features that are immediately available in the image. This experiment is performed by estimating distance between camera and object. PBVS consist of moving object 3-D parameters to estimate measurement. This paper showcases PBVS using kuka robot model. HBVS uses the 2D and 3D servoing by combining visual sensors also it overcomes challenges of previous two methods. This paper represents HBVS method using IPR communication robot model.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2020, 14, 1; 39-47
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
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