PL
 |
EN
Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 13

Liczba wyników na stronie
first rewind previous Strona / 1 next fast forward last
Wyniki wyszukiwania
Wyszukiwano:
w słowach kluczowych:  GDI
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 1 next fast forward last
1
Content available Nanoparticle emissions from gasoline vehicles DI & MPI
Czerwinski J., Comte P., Güdel M., Bonsack P.
Combustion Engines
|
2017
|
R. 56, nr 3
179--187
EN
The nanoparticles (NP) count concentrations are limited in EU for all Diesel passenger cars since 2013 and for gasoline cars with direct injection (GDI) since 2014. For the particle number (PN) of MPI gasoline cars there are still no legal limitations. In the present paper some results of investigations of nanoparticles from five DI and four MPI gasoline cars are represented. The measurements were performed at vehicle tailpipe and in CVS-tunnel. Moreover, five variants of “vehicle – GPF” were investigated. The PN-emission level of the investigated GDI cars in WLTC without GPF is in the same range of magnitude very near to the actual limit value of 6.0 × 1012 1/km. With the GPF’s with better filtration quality, it is possible to lower the emissions below the future limit value of 6.0 × 1011 1/km. The modern MPI vehicles also emit a considerable amount of PN, which in some cases can attain the level of Diesel exhaust gas without DPF and can pass over the actual limit value for GDI (6.0 × 1012 1/km). The GPF-technology offers in this respect further potentials to reduce the PN-emissions of traffic.
2
Content available remote The use of diatoms to assess the water quality in the Wisłoka River in the town of Dębica and the surrounding area
Noga T., Stanek-Tarkowska J., Peszek Ł., Pajączek A., Kochman-Kędziora N., Ligęzka R.
Oceanological and Hydrobiological Studies
|
2016
|
Vol. 45, No. 2
191--201
EN
The objective of this work was to examine the water quality using three diatom indices SPI, GDI and TDI. The material for the study was collected during four seasons from autumn 2010 to summer 2011, from four sampling sites located on the Wisłoka River, in the town of Dębica and the surrounding area. The Wisłoka at all selected sites was characterized by alkaline or close to neutral pH (pH 6.5-7.7). Electrolytic conductivity ranged from 364 to 480μS cm-1. The Wisłoka at the selected sites in the urban area and in the surrounding areas was characterized by high diatom species richness. The total of 238 taxa from 53 genera were recorded, of which the most numerous were: Nitzschia (44), Navicula (33) and Gomphonema (12). Achnanthidium minutissimum var. minutissimum, Amphora pediculus, Navicula gregaria, N. lanceolata, and Nitzschia dissipata ssp. dissipata were usually the dominant species. Chemical parameters indicated very good quality of water. However, the diatom indices used to assess the water quality, classified the studied water into a group corresponding to quality class III or IV.
3
Content available Diversity of Diatoms in the Natural, Mid-Forest Terebowiec Stream – Bieszczady National Park
Noga T., Stanek-Tarkowska J., Rybak M., Kochman-Kędziora N., Peszek Ł., Pajączek A.
Journal of Ecological Engineering
|
2016
|
Vol. 17, nr 4
232--247
EN
The Terebowiec stream is an 8 km long watercourse which flows through the strictly protected Bieszczady National Park. The studies on bentic diatoms were conducted between 2013–2015 at three sampling sites along the Terebowiec stream and its unnamed tributary. 260 diatom taxa were identified in the streams, of which 13 taxa were considered as frequent. Chemical analysis showed good and high status of the water. In the studied samples, 27 taxa from the Polish Red List of Algae were determined.
4
Content available The effect of anthropogenic change in the structure of diatoms and water quality of the Żołynianka and Jagielnia streams
Peszek Ł., Noga T., Stanek-Tarkowska J., Pajączek A., Kochman-Kędziora N., Pieniążek M.
Journal of Ecological Engineering
|
2015
|
Vol. 16, nr 2
33--51
EN
The studies on bentic diatoms were conducted in 2009–2011 at eight samplings sites over the Żołynianka stream and its tributary, the Jagielnia. 427 diatom taxa were recorded in total. Achnanthidium minutissimum var. minutissimum, Aulacoseira ambigua, Fragilaria capucina var. capucina, Gomphonema parvlum, Navicula gregaria, Nitzschia palea and Planothidium lanceolatum were dominant taxa in both watercourses. Chemical analysis of water showed high chemical status of water at most of sampling sites. The results of diatomaceous analysis conducted with OMNIDIA software revealed moderate and poor condition of water. The best water quality was recorded in the Jagielnia stream (good or moderate status). The values of the analyzed indices showed the worst water quality on the Żołynianka at site four, showing bad ecological status. TDI index deviated the most from the other two indices (IPS and GDI), always indicating poorer water quality.
5
Content available Wykorzystanie okrzemek (bacillariophyta) do oceny jakości wód rzeki Białej Tarnowskiej
Noga T., Stanek-Tarkowska J., Pajączek A., Peszek Ł., Kochman-Kędziora N., Irlik E.
Inżynieria Ekologiczna
|
2015
|
Nr 42
17--27
PL
Rzeka Biała Tarnowska jest prawobrzeżnym dopływem Dunajca. Wypływa z Beskidu Niskiego, płynie na granicy Pogórza Rożnowskiego i Ciężkowickiego, następnie uchodzi do Dunajca na terenie Niziny Nadwiślańskiej. Celem niniejszej pracy było zbadanie różnorodności okrzemek na poszczególnych stanowiskach oraz próba oceny zanieczyszczenia rzeki z wykorzystaniem okrzemek jako wskaźników jakości wód. Wody rzeki Biała Tarnowska charakteryzowały się odczynem zasadowym lub zbliżonym do obojętnego. Wartości stężeń azotanów wskazywały na II klasę jakości, jedynie na ostatnim stanowisku (5) mieściły się w normach odpowiadających I klasie. Na stanowiskach wyznaczonych wzdłuż biegu rzeki zidentyfikowano łącznie 205 taksonów okrzemek. Najbogatszymi w gatunki rodzajami były: Nitzschia (29), Navicula (21) oraz Gomphonema (15). Najczęściej występującym dominantem było Achnanthidium pyrenaicum (Hust.) Kobayasi. Bardzo liczne populacje tworzyła także Navicula lanceolata (Agardh) Kütz., w dolnym biegu rzeki, na dwóch ostatnich stanowiskach. Celem określenia statusu ekologicznego rzeki Białej Tarnowskiej wykonano analizę struktury zbiorowisk okrzemek. Wyniki analiz przedstawiono za pomocą wybranych indeksów okrzemkowych. Według indeksu IPS Biała Tarnowska posiada dobry status ekologiczny (II klasa) na większości badanych stanowisk. Wartości wskaźnika TDI przedstawiały się najgorzej w klasyfikacji i wskazywały najczęściej na wody słabej i złej jakości (IV i V klasa) zwłaszcza w środkowym i dolnym biegu.
EN
The Biała Tarnowska River is a right-bank tributary of Dunajec. It flows from the Low Beskid Mountains, flowing on the border of Ciężkowickie and Rożnowskie foothills and then flows into the Dunajec on the territory of Vistula Lowland (Nizina Nadwiślańska). The aim of this work was to investigate the diatoms diversity at the individual sites and attempt to evaluate pollution of the river with the use diatoms as water quality indicators. The waters of Biała Tarnowska River were characterized by alkaline or circumneutral pH. Values of nitrates concentration indicated II water quality class, only at the last site (5) corresponded to the standards for the I class. At the studied sites located along river course 205 diatom taxa were identified. The riches in species were genera: Nitzschia (29), Navicula (21) and Gomphonema (15). The most popular dominant was Achnanthidium pyrenaicum (Hust.) Kobayasi. Very numerous communities were created by Navicula lanceolata (Agardh) Kütz, at the lower current of river, on two last sites. In order to determine the ecological status of Biała Tarnowska River the analysis of the diatom assemblages structure was performed. The results of the analysis were shown by the selected diatomaceous indices. According to IPS index Biała Tarnowska has a good ecological status (II class) at the most of study sites. Values of TDI index were the worst and indicated poor and bad water quality (IV and V class) especially in middle and lower current.
6
Content available remote Diatom indices in the biological assessment of the water quality based on the example of a small lowland river
Szczepocka E., Szulc B., Szulc K., Rakowska B., Żelazna-Wieczorek J.
Oceanological and Hydrobiological Studies
|
2014
|
Vol. 43, No. 3
265--273
EN
The aim of the study was to compare the biological analyzes of the Linda River (Central Poland), which were based on three diatom indices: IO, GDI and IPS in order to select the best diatom index for the biological assessment of the lotic water quality. Additionally, the summary of the selected results of the biological and chemical analyzes was presented to show how precise the biological analyzes are as a basic tool in the assessment of the ecological status of the lotic waters. The results showed that each of the indices assessed the water in the Linda River to a specific but different quality class. The IO index showed class II of the water quality, while the IPS and GDI - class III. Statistical analysis conducted with the nonparametric Kruskal-Wallis test for independent samples (Kruskal, Wallis 1952) showed that differences in the values of individual indices at different sites were not statistically significant. It should be noticed that the IPS and GDI indices gave values that classify the water in the Linda River at least one class below. The obtained results confirmed that the biological methods are most reliable in the assessment of the water quality. These methods are less sensitive to a single impact of the environmental factors, therefore they permit accurate determination of the ecological status of the water ecosystems.
7
Content available Ecological assessment of the San River water quality on the area of the San Valley Landscape Park
Noga T., Stanek-Tarkowska J, Pajączek A, Kochman N, Peszek Ł.
Journal of Ecological Engineering
|
2014
|
Vol. 15, nr 4
12--22
EN
Water of the San River was characterized by good and high ecological status and high diatom richness. During four studied seasons at two sites 353 diatom taxa were identified in total, from which the most numerous were Achnathidium pyrenaicum (Hust.) Kobayasi and Achnanthidium minutissimum (Kütz.) Czarnecki var. minutis-simum. Water of the San River, was characterized by high and good water quality (II and I class) in all seasons and at both studied sites.
8
Content available Ocena chodu dzieci z mózgowym porażeniem na podstawie wskaźnika GDI
Nowakowska K., Jochymczyk-Woźniak K.
Aktualne Problemy Biomechaniki
|
2014
|
z. 8
127--132
PL
Celem pracy było opracowanie aplikacji w środowisku MatLab umożliwiającej wyznaczenie wskaźnika chodu Gait Deviation Index dla dzieci z mózgowym porażeniem. Badaną grupę stanowiły 44 dzieci z różnymi postaciami MPD, a grupę kontrolną 57 osób o chodzie prawidłowym. Badania chodu przeprowadzono wykorzystując optoelektroniczny system BTS. Analizę wyników przeprowadzono uwzględniając postać mózgowego porażenia dziecięcego i rodzaj leczenia pacjentów.
EN
The aim of this study was to develop an application in MatLab, allowing the designation of Gait Deviation Index for children with cerebral palsy. The research group consisted of 44 children with various forms of MPD, and a control group of 57 people with normal gait. The gait study was carried out using optoelectronic BTS system. Analysis the results of the research group was performed taking into account the type of cerebral palsy and type of treatment.
9
Content available Use of diatoms to asses water quality of anthropogenically modified Matysówka stream
Noga T., Stanek-Tarkowska J., Peszek Ł., Pajączek A, Kowalska S.
Journal of Ecological Engineering
|
2013
|
Vol. 14, nr 2
1--11
EN
Matysówka stream is small, under 6 km long watercourse, which is a right-bank tributary of Strug River. In 2009–2011studies on the subject of diversity of diatom communities using diatom indices IPS, GDI and TDI for water quality assessment were conducted. On the stream 271 diatom taxa were identified, among which: Achnanthidium minutissimum var. minutissimum, Navicula cryptotenella, N. gregaria, N. lanceolata, N. tripunctata, Nitzschia linearis, N. pusilla, N. recta, Planothidium frequentissimum, Rhoicosphenia abbreviata were the most frequent. Middle and lower section of Matysówka stream was characterized by increased concentrations of phosphates, nitrites, ammonium, total phosphorus and nitrogen, BOD5. On the basis of diatom indices IPS and GDI waters were characterized as III–IV quality classes, while the TDI index revealed the worst water quality classes (IV–V).
10
Content available Ecological characterization of diatom communities in the Wisłok River with application of their indicatory role to the evaluation of water quality
Noga T., Stanek-Tarkowska J., Pajączek A, Peszek Ł., Kochman N
Journal of Ecological Engineering
|
2013
|
Vol. 14, nr 4
18--27
EN
Research conducted in 2007–2008 on eight sites designated along the Wisłok River showed great diatoms diversity – indicated a total of 401 diatom taxa. Achnathidium pyrenaicum, A. minutissimum var. minutissimum, Navicula gregaria, N. lanceolata, Amphora pediculus, Cyclotella meneghiniana, Gomphonema olivaceum var. olivaceum, Nitzschia dissipata ssp. dissipata were most frequent. Based on diatomaceous indices IPS, GDI and TDI has been shown that the upper part of Wisłok had a high and good ecological status. However, the middle and lower section of river was characterized by moderate and poor ecological status, on the base of the IPS and GDI indices (III and IV class). TDI value indicated bad water quality (V class) in the middle and lower section.
11
Content available Application of diatoms to assess the quality of the waters of the Baryczka stream, left-side tributary of the River San
Noga T., Stanek-Tarkowska J., Kochman N, Peszek Ł., Pajączek A, Woźniak K.
Journal of Ecological Engineering
|
2013
|
Vol. 14, nr 3
8--23
EN
The Baryczka stream is a small (about 20 km long), left bank tributary of the River San (Podkarpackie Voivodeship). Studies on diversity of diatom communities using OMNIDIA software were conducted in 2010 and 2011. Diatomaceous indices IPS, GDI and TDI and Van Dam et al. classification system were used for water quality assessment. Planothidium lanceolatum, Cocconeis placentula var. lineata, Achnanthidium minutissimum var. minutissimum, Nitzschia linearis, Rhoicosphenia abbreviata, Navicula lanceolata and Naicula gregaria were the most numerous. Values of the IPS index indicate good water quality (II–III class). Based on the GDI index, waters of the Baryczka stream were classified to III class water quality. The TDI index indicated poor and bad ecological state on the most sampling sites. On all sampling sites alaliphilous (pH>7) diatoms taxa predominated. The most common were eutraphentic and hypereutraphentic diatoms. With respect to trophy, it was shown that α- and β-mesosaprobous diatoms were the most common (III and II class water quality).
12
Innovative solutions of system direct injection of petrol fsi (fuel stratified injection)
Olszowski S., Olszowski T.
Logistyka
|
2008
|
nr 2
EN
In the article innovative solutions of direct injection of petrol system have been introduced. The innovative ideas of the fuel or air feed system are shown as well. Advantages which appear to be the results of such technical solutions are described too.
PL
W artykule zaprezentowano nowe rozwiązania zastosowane w systemie bezpośredniego wtrysku benzyny. Przedstawiono innowacyjne koncepcje układu zasilania powietrzem oraz paliwem. Przybliżono zalety i korzyści wynikające z możliwości zastosowania tego typu rozwiązań technicznych.
13
Metoda identyfikacji dryfów żyroskopów (GDI) w procesie orientacji wstępnej
Szymanowski J., Grzelak J.
Prace Przemysłowego Instytutu Telekomunikacji
|
2004
|
Vol. 54, z. 133
9-16
PL
W pracy zaproponowano nową metodę identyfikacji dryfów żyroskopów w Systemach Nawigacji Lądowej (SNL), działającą w czasie procesu Orientacji Wstępnej (OW). Zakładamy, że znamy błąd azymutu początkowego, który jest wyznaczany algorytmem DISUPT (Dynamic Initial Settings UPdaTe) [12], w czasie początkowego odcinka jazdy. W pierwszej części pracy określimy kryterium, według którego będziemy dokonywać identyfikacji dryfów oraz zbadamy jego właściwości. Następnie dokonamy prezentacji metody o nazwie GDI (Gyroscope Drifts Identification) oraz przedstawimy wyniki optymalizacji i symulacji sprawdzając poprawność funkcjonowania metody. Wykorzystano do tego celu zbiory danych, zarejestrowane w czasie jazd kontrolnych. Na zakończenie, sformułujemy wnioski oraz perspektywy dalszych prac.
EN
The paper presents a new method for identifying gyroscope drifts during, the Alignment Process (AP) in inertial navigation systems UNZ-50. We assume that initial azimuth error is known as result of applying the DISUPT technique [12] when the vehicle is in the navigation mode. The first part of the work describes the quality criteria on the base which the gyroscope drifts are identified. Nex, their properties are examined, including computation algorithms, examples of characteristics and the simulation results. Further the GDI method and the optimization results have been presented. In order to check proper functioning the GDI method, a series of simulations in MATLAB 6.0 environment have been carried out on the data collected during terrain tests of UNZ-50 system prototype mounted on a cross - country light vehicle. Finally, conclusions have been formulated.
first rewind previous Strona / 1 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.