Wyniki wyszukiwania - Biblioteka Nauki

1

Microscopic structure of swine fetus aorta in relation to their biomechanical properties in prenatal period

100%

Dudek A. , Kuropka P. , Pospieszny N. , Szotek S. , Kobielarz M. , Bedzinski R.

Acta Biologica Cracoviensia. Series Botanica. Supplement

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2008

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tom 50

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nr 1

2

Microscopic structure of the thyroid gland in the European bison

100%

Sawicki B. , Siuda S. , Kasacka I.

Acta Theriologica

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1992

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tom 37

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nr 1-2

EN

The thyroids of 85 European bison, Bison bonasus (Linnaeus, 1758) collected from the selectively shot animals (43 males and 42 females) in the years 1982 - 1984 in the Białowieża and Borecka Forests, were examined. The animals were shot in winter at low temperatures: (Dec., and Jan. - March) as well as summer (June - Sept.). Their age ranged from 1 month to 25 years. The thyroid of calves shoved small differentiation in histological structure. Size of the follicles as well variability of their shape increases significantly in older animals, and large follicles are present in relatively great number in the very old bison. Characteristic histological signs of higher activity of the thyroid can be noticed in warm summer months as compared with low temperature winter months.

3

The effect of mammary gland-specific transgene expression on rabbit reproductive gland structure

84%

Tvrda E. , Massanyi P. , Lukac N. , Danko J. , Schlarmannova J. , Chrenek P.

Folia Biologica

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2014

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tom 62

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nr 2

4

Changes in microscopic structure and susceptibility to enzymatic hydrolysis of miscanthus and sorghum biomass after acid and alkali pretreatment

84%

Lysakowski P. , Brona N. , Grajek W.

Electronic Journal of Polish Agricultural Universities. Series: Biotechnology

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2019

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tom 22

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nr 2

5

The aortic valve and other heart structures of selected species of sea birds in a morphological and imaging scope

84%

Bartyzel B. J.

Electronic Journal of Polish Agricultural Universities. Series Veterinary Medicine

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2009

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tom 12

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nr 4

6

Macroscopic structure of bone callus after using external fixator Maczek in sheep

67%

Jalynski M. , Chyczewski M. , Brzeski W. , Nowicki M. , Lew M. , Powalska D. , Sobiech P.

Electronic Journal of Polish Agricultural Universities. Series Veterinary Medicine

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2005

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tom 08

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nr 3

7

Application of high hydrostatic pressures for non-thermal reduction of Salmonella and Escherichia coli and their effect on microscopic structure of poultry meat

67%

Malicki A. , Sysak Z. , Suder E. , Bruzewicz S.

Polish Journal of Environmental Studies

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2004

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tom 13

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nr Suppl.2, Part 1

EN

High hydrostatic pressures (HHP) gain recently increasing interest as potential non-thermal alternative of food preservation. The purpose of the experiment was the evaluation of HHP efficiency against Salmonella enteritidis and Escherichia coli, contaminating the raw poultry meat. The studies were performed on poultry meat samples inoculated superficially with 107 CFU x g-1 of the test bacteria. Subsequently the samples were pressurized for 15 minutes (200, 300 or 400 MPa). Pressurization reflected in significant bacterial reduction. Histological analysis of treated meat samples revealed structural alterations of intramuscular connective tissue and loss of muscular stratification, proportional to the amount of pressure applied. Concluding, HHP seem to reduce efficiently the level of microbiological meat contamination and, probably, also increase the dietary availability of sarcoplasmic proteins.

8

Wykorzystanie analizy wektorów do stworzenia algorytmów inteligentnego oprogramowania wspomagającego mikroskopowe badania jakościowe spoin

59%

Padula G. , Jastrzębski A. , Padula H. , Kaczor M. , Latała Z. , Nowacki J. , Cenin M.

Dozór Techniczny

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2020

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tom z. 6

24--36

PL

W artykule omówiono metody komputerowej analizy obrazów znane z celowników lotniczych (ukrywanej przez wojskowych naukowców ubiegłego wieku w psychologii i badaniach językowego opisu obrazu), analizy obrazu z kamery robota spawalniczego, komputerowego wspomagania badań mikroskopowych. Do stworzenia algorytmów rozpoznawania struktur mikroskopowych stali wykorzystano znaną z językoznawstwa metodę zamiany metaforycznych wypowiedzi na wektory czyli na zapis matematyczny. W analizie wektorów uwzględniono odziedziczone i wyuczone typy zdolności. Wynik analizy, który jest identyczny dla algorytmów odpowiadających 3 typom zdolności daje pewność jednoznaczności. W innych przypadkach potrzebna jest dodatkowa wiedza dotycząca technologii powstawania badanych struktur mikroskopowych.

9

Budowa jajnika Eisenia foetida (SAV.) w badaniach mikroskopowo-elektronowych

51%

Jasik K.

Acta Biologica Silesiana

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1988

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tom 08

10

Struktura drewna konstrukcyjnego

42%

Wdowiak A.

Czasopismo Inżynierii Lądowej, Środowiska i Architektury / Journal of Civil Engineering, Environment and Architecture

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2017

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tom z. 64, nr 4/I

363--378

PL

Drewno to priorytetowy surowiec dla przemysłu celulozowego i energetycznego. Źródłem surowcowym są lasy. Powierzchnia lasów w Polsce, z roku na rok, nieustannie wzrasta. Wzrost lesistości od roku 1945 wynosi 8,4%. Przyrost ten jest wynikiem zalesiania gruntów użytkowanych przez rolnictwo i nieużytków [1]. W monografii przedstawiono budowę mikroskopową i makroskopową drewna sosny zwyczajnej Pinus sylvestris L., pochodzącej z czterech wybranych krain przyrodniczoleśnych Polski: Kraina A - Mazowiecko – Podlaska Kraina Przyrodniczo – Leśna (Nadleśnictwo Garwolin), Kraina B - Małopolska Kraina Przyrodniczo – Leśna (Nadleśnictwo Przedbórz), Kraina C - Śląska Kraina Przyrodniczo – Leśna (Nadleśnictwo Kędzierzyn Koźle), Kraina D - Karpacka Kraina Przyrodniczo – Leśna (Nadleśnictwo Piwniczna). Ukazano strukturę mikroskopową jodły pospolitej Abies alba Mill, modrzewia europejskiego Larix decidua Mill. pochodzącego z zabytkowego obiektu wybudowanego w 1860 r., sosny zwyczajnej Pinus sylvestris L. poddanej 5 - letnim wpływom atmosferycznym oraz degradacji biologicznej. Określono przyrosty roczne, biel i twardziel, pęcherze i wycieki żywiczne oraz promienie łykodrzewne. Zaprezentowano właściwości rozpoznawcze wybranych rodzajów drewna iglastego, w szczególności zabarwienie twardzieli, szerokość przyrostów rocznych, udział bielu i twardzieli, obecność przewodów żywicznych, przejście z drewna wczesnego do późnego czy strukturę sęka. Dodatkowo scharakteryzowano takie gatunki drzew, jak sosna zwyczajna Pinus sylvestris L., świerk pospolity Picea abies Karst., modrzew europejski Larix decidua Mill., jodła pospolita Abies alba Mill., daglezja zielona Pseudotsuga menziesii Franco [1-2].

EN

Wood is a basic raw material for paper and pulp industry, and also in power generation. Wood supplies are provided by forests. In Poland, the area of forests continues to increase annually. Since 1945, forest cover has grown by 8.4%. The increment results from afforestation of the land with former agricultural use, and of uncultivated land [1]. In the monograph, the micro- and macroscopic structure of wood from pine Pinus sylvestris L. was presented. The wood originated from four selected nature-forest areas of Poland, namely Area A - Mazowiecko – Podlaska Nature-Forest Area (Garwolin Forest Inspectorate), Area B - Małopolska Nature-Forest Area (Przedbórz Forest Inspectorate), Area C - Śląska Nature-Forest Area (Kędzierzyn Koźle Forest Inspectorate), Area D - Karpacka Nature-Forest Area (Piwniczna Forest Inspectorate). Wood microscopic structure analysis was performed for the following conifer species: silver fir Abies alba Mill, European larch Larix decidua Mill., the wood of which was obtained from a historical structure built in 1860, and pine Pinus sylvestris L., the wood of which was exposed to atmospheric conditions and biological degradation for a 5 – year period. The following features were specified: annual rings, sapwood and heartwood, resin pockets and leaks, and also medullary rays. The distinctive properties of selected coniferous wood species were presented, including heartwood colour, the width of annual rings, sapwood and heartwood content, the occurrence of resin ducts, transition from earlywood to latewood, and also knot structure. Additionally, the characteristics of the wood of the following species were provided: pine Pinus sylvestris L., spruce Picea abies Karst., European larch Larix decidua Mill., silver fir Abies alba Mill., Douglas fir Pseudotsuga menziesii Franco [1-2].

11

Badania porownawcze wplywu zanieczyszczen przemyslowych na podstawie wlasciwosci drewna sosny zwyczajnej [Pinus sylvestris L.]

42%

Niedzielska B.

Acta Agraria et Silvestria. Series Silvestris

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1996

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tom 34

105-120

PL

W pracy przedstawiono charakter i kolejność występowania zmian zachodzących w wybranych cechach makroskopowej i mikroskopowej struktury oraz gęstości drewna sosny rosnącej w strefach o zróżnicowanym poziomie zanieczyszczeń przemysłowych

EN

The paper concerns the comparative analysis of changes occurring in macroscopic, as well as in microscopic structure and density of wood of scotch pine, growing in three zones, differing according to industrial effluent hazard. The studies were carried out on 8 surfaces, founded in homogenous pine stand, of the age from 80 to 100 years. The surfaces were located in three zones of different industrial effluent hazard (0, II and III), determined on the base of tree-crown damages. On every surface 15 trees were analysed. It was documented that in pine stands, growing in the range of industrial effluent, the life of the trees and their growth dynamics were lowered, also changes in wood structure and its properties occurred. The changes were correlated with the degree of pollution hazard (tree-crowns damages). It was possible to determine the character of these changes and their succession in every zone. In zone II of hazard (of average damages) the decreasing of annual ring growths, below determined indexes of critical values, correlated with decreasing of about 4% of late wood and also correlated with decreasing of about 10% of wood density. In this wood, the gum ducts were much numerous than normally of about 25% (Table 2 and 3). In zone III оf hazard (of serious damages) the decreasing of annual ring growths progressed, whether the decreasing of wood density was similar to that of the zone II: on the level of 10%. In zone III essential changes in dimensions of vascular tracheids were observed. The most visible differences were observed in narrow growths, up to 0.5 mm. The lengths of vascular tracheids decreased in this zone of about 35%, whether the surface of their cross-sections of about 15%. In tree populations, growing in zone III of hazard, much higher variability in wood features was observed, than in tree stands growing in zone free of pollution. Such individual differentiations of trees reactions on industrial effluents should be taken into consideration when selecting the trees for industrial areas.