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Wyświetlanie 1-15 z 15
Tytuł:
A re-analysis of Chibanian Pleistocene tracks from Vértesszőlős, Hungary, employing photogrammetry and 3D analysis
Autorzy:
Tanaka, Ikuko
Markó, András
Hyodo, Masayuki
Strickson, Catherine E.
Falkingham, Peter L.
Powiązania:
https://bibliotekanauki.pl/articles/1835997.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Pleistocene
Palaeolithic site
calcareous mudstone
mammal track
comparative ichnology
Opis:
The Vértesszőlős quarry, the Palaeolithic site where the “Samu” hominin fossil remains (Homo heidelbergensis) were found, is located in North West Hungary. The site is dated between the Early and Middle Pleistocene (ca. 310 ka). A short distance from where the Samu remains were found is an exposed surface of calcareous mudstone, preserving numerous fossil tracks made by a range of mammals and birds. Of particular interest are three elongate impressions - two potentially successive and one isolated. These tracks have previously been referred to either hominin or ursine trackmakers. Since bear pes tracks can superficially resemble human tracks, we attempted to discern the 3D morphology of the traces using digital photogrammetry. Our analysis suggests the isolated impression is likely the product of two superimposed tracks of a cloven hoofed ungulate. However, the two potentially successive tracks are more problematic. The highly weathered surface (first exposed in the 1960’s) has made interpretation difficult. Both impressions seem to possess a narrow, rounded end similar to the posterior heel margin of a human track. At the anterior end the impressions are broader, and bounded by smaller impressions that could be interpreted as toe marks. However, these two tracks differ considerably in their length/width ratios and are too widely spaced to be part of a single bipedal trackway. It is conceivable that one or both of these impressions may be highly weathered hominin tracks. However, given the highly weathered nature of the exposed surface, and the lack of morphological detail in the tracks, we cannot at this time confidently attribute the tracks to any specific trackmaker, despite our digital models of the tracks which provide a relatively objective means of analysis independent of prior assumptions.
Źródło:
Annales Societatis Geologorum Poloniae; 2021, 91, 1; 75-83
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dielectric Properties of Triglycine Sulphate Crystals Admixtured With D- and DL-Phenylalanine
Autorzy:
Stankowska, J.
Peter, E.
Trybula, M.
Powiązania:
https://bibliotekanauki.pl/articles/2014028.pdf
Data publikacji:
2000-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
77.22.-d
Opis:
The paper reports studies on the effect of D-phenylalanine and DL-phenylalanine admixtures on dielectric properties and domain structure of triglycine sulphate crystals. Permittivity ε and loss tangent tgδ were measured in a wide range of temperatures (10-340 K) as a function of measuring field varied from 1 to 10000 kHz, for samples cut out from two growth pyramids (001) and (110) from triglycine sulphate crystals containing different concentrations of admixtures. A comparison of the effects of D-phenylalanine and DL-phenylalanine admixtures on dielectric properties of triglycine sulphate crystals was made. With increasing concentrations of admixtures in the crystals, the values of ε$\text{}_{max}$ decreased while E$\text{}_{c}$ and E$\text{}_{b}$ (bias field) increased, and P$\text{}_{s}$ and T$\text{}_{c}$ showed insignificant changes. Observations of the domain structure of the admixtured crystals by the liquid crystal method proved its refinement and irregularity. Changes in the domain structure of the crystals occurring in the process of spontaneous ageing were analysed.
Źródło:
Acta Physica Polonica A; 2000, 97, 6; 1061-1072
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Jak miliarderzy tłumaczą swoje postawy filantropijne. Analiza pisemnych przyrzeczeń darowizn w ramach inicjatywy The Giving Pledge z wykorzystaniem metod mieszanych
How Billionaires Explain Their Philanthropy: A Mixed-Method Analysis of the Giving Pledge Letters
Autorzy:
Schmitz, Hans Peter
Mitchell, George E.
McCollim, Elena M.
Powiązania:
https://bibliotekanauki.pl/articles/22180840.pdf
Data publikacji:
2023-11
Wydawca:
Fundacja Akademia Organizacji Obywatelskich
Tematy:
filantropia miliarderów
The Giving Pledge
jakościowa analiza dokumentów
analiza klas ukrytych
Billionaire philanthropy
Giving Pledge
Qualitative document analysis
Latent class analysis
Opis:
W prezentowanym badaniu analizie poddano dyskurs na temat filantropii miliarderów, utrwalony w pisemnych przyrzeczeniach przekazania darowizn złożonych przez 187 z 209 sygnatariuszy The Giving Pledge. Działalność filantropijna osób zamożnych przyciąga coraz większą uwagę opinii publicznej i spotyka się z rosnącą krytyką, co wskazuje na potrzebę dodatkowych badań sposobu uzasadniania swojej hojności przez najbogatszych. Wyniki analizy prowadzonej metodami mieszanymi wskazują, że nacisk kładziony jest na wspieranie celów dotyczących edukacji i ochrony zdrowia, pozwalają także wyraźnie zidentyfikować dwie główne przesłanki hojności. Większość złożonych w formie listu przyrzeczeń darowizny zawiera uzasadnienia wypływające z przesłanek społeczno-normatywnych i obejmuje najczęściej chęć wyrażenia wdzięczności i „oddania” tego, co się otrzymało oraz wpływ wychowania odebranego w rodzinie na postawy społeczne. Mniejsza część przyrzeczeń odnosiła się do powodów natury osobisto-konsekwencjalistycznej, spośród których dają się wyróżnić trzy główne uzasadnienia: przeciwdziałanie szkodliwemu wpływowi dużego spadku na potomków, działalność filantropijna jako źródło gratyfikacji osobistej oraz posiadanie nadmiarowego majątku, dla którego nie ma lepszego zastosowania. Chęć wywarcia wpływu i zmiany świata na lepsze pojawiała się w obu kategoriach przesłanek dobroczynności. Przewaga uzasadnień opartych na przesłankach społeczno-normatywnych skłania do podkreślenia znaczenia dobroczynnych postaw wśród miliarderów, jak i do uznania, że najbogatsi stanowią wyjątkowo produktywną i odczuwającą wdzięczność podgrupę społeczną. Podczas gdy poprzednie badania koncentrowały się na osobistych motywacjach psychologicznych, niniejsze badanie pokazuje, jak przyrzeczenia złożone w ramach The Giving Pledge odzwierciedlają dyskurs miliarderów filantropów sięgający Ewangelii bogactwa Andrew Carnegiego.
This study investigates a discourse about billionaire philanthropy established in letters submitted by 187 of 209 signatories of the Giving Pledge. The philanthropy of the wealthy is gaining increasing public attention and is subject to growing criticism, which demands additional study of how the wealthy collectively explain their generosity. The mixed-method analysis finds a strong emphasis on education and health causes and identifies two distinct and coherent rationales for being generous. The majority of letters express a social–normative rationale, consisting of two prevailing explanations: an expressed gratitude and desire to ‘‘give back’’ (1) and references to family upbringing as a socializing force (2). A minority of letters articulate a personal–consequentialist rationale, highlighting three separate explanations: a large inheritance may harm offspring (1), giving as personal gratification (2), and an acknowledgment of excess wealth with no better use (3). An expressed desire to have impact and make a difference appears in both rationales. The overall dominance of a social–normative rationale projects a discourse emphasizing benevolence as well as a narrative in which billionaires are an exceptionally productive and grateful subset of society. While previous studies have primarily focused on identifying individual psychological motives, this study shows how the Giving Pledge letters reflect a philanthropic discourse among the wealthy going back to Andrew Carnegie’s Gospel of Wealth.
Źródło:
Kwartalnik Trzeci Sektor; 2023, 61-62 (1-2/2023); 84-110
1733-2265
Pojawia się w:
Kwartalnik Trzeci Sektor
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Potential influence of urban sprawl and changing land surface temperature on outdoor thermal comfort in Lagos State, Nigeria
Autorzy:
Obiefuna, Jerry N.
Okolie, Chukwuma J.
Nwilo, Peter C.
Daramola, Olagoke E.
Isiofia, Lawrence C.
Powiązania:
https://bibliotekanauki.pl/articles/1050781.pdf
Data publikacji:
2021-03-31
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
Landsat imageries
land cover changes
heat stress
outdoor thermal comfort
universal thermal climate index
Opis:
The continuous monitoring of the relationship between land surface temperature (LST) and land cover change is imperative for an inquiry into the potential impact of LST on human well-being, including urban outdoor thermal comfort in Lagos State, Nigeria. Using Landsat imagery, this study assessed land cover and LST changes from 1984 to 2019. Land cover was extracted, LST was determined from Landsat imageries and the land cover changes were linked to LST using the contribution index (CI). Afterwards, the universal thermal climate index (UTCI) was calculated to determine the heat stress levels. Findings confirm the presence of urban sprawl and new growth areas in previously rural Local Government Areas (LGAs) eastward, northward and westward of Lagos metropolis and in regions which lie on the fringe of the state’s border with Ogun State. Also, a very strong link between high LST intensities and increasing concentration of urban areas in rapidly growing LGAs has been observed. This link further confirms the increased warming of the state, with an increase in mean LST of 2.16°C during 1984–2019. The UTCI which was used to gauge the influence of LST on outdoor thermal comfort ranged from moderate to strong heat stress levels. This study helps to strengthen the case for definite policies and actions which should be aimed at achieving moderate urban development through increased urban tree canopy/green infrastructure provision and carbon sequestration activities in urban design/landscape design, in Lagos State.
Źródło:
Quaestiones Geographicae; 2021, 40, 1; 5-23
0137-477X
2081-6383
Pojawia się w:
Quaestiones Geographicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soil erosion susceptibility mapping of Imo River Basin using modified geomorphometric prioritisation method
Autorzy:
Nwilo, Peter C.
Ogbeta, Caleb O.
Daramola, Olagoke E.
Okolie, Chukwuma J.
OrJi, Michael J.
Powiązania:
https://bibliotekanauki.pl/articles/2054950.pdf
Data publikacji:
2021-09-01
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
morphometry
weighted sum analysis
soil erosion susceptibility
SRTM
remote sensing
GIS
Imo River Basin
Opis:
Gullies and other forms of erosion have been the greatest environmental problem and catastrophe in most high- and low-income countries. The challenge posed by soil erosion has compromised agricultural productivity, en-vironmental biodiversity and food safety for the world’s population. It is important to identify vulnerable areas to soil erosion in each region to initiate remedial measures. This study demonstrates the use of watershed morphometry coupled with weighted sum analysis (WSA) to estimate the soil erosion susceptibility of the Imo River Basin sub-wa-tersheds (SWs) in South-Eastern Nigeria using satellite remote-sensing data and geographic information system (GIS) analysis. To this end, Shuttle Radar Topography Mission (SRTM), a Digital Elevation Model (DEM) with 30 m spatial resolution was used to extract and analyse 18 morphometric parameters including basic, linear, shape and relief. The method of receiver operating characteristics (ROC) curves was used to validate the model’s prediction accuracy. This morphometry-based analysis resulted in the SWs being classified into zones of low, medium, high and very high erosion susceptibility. With regard to erosion susceptibility, 41.51% of the basin (2494.68 km2) is in the very high pri-ority zone; while 10.50%, 44.33% and 3.66% of the basin are in the high, medium and low priority zones respectively. Validation of the final erosion susceptibility map showed a prediction accuracy of 81%. The use of satellite imagery and morphometric analysis in this study was cost- and time-effective for identifying areas susceptible to soil erosion.
Źródło:
Quaestiones Geographicae; 2021, 40, 3; 143-162
0137-477X
2081-6383
Pojawia się w:
Quaestiones Geographicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radon events in the U-mine environment and related radiation exposure
Autorzy:
Križman, M. J.
Rojc, J.
Peter, J. E.
Powiązania:
https://bibliotekanauki.pl/articles/148916.pdf
Data publikacji:
2010
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
radon
uranium mine
environment
radon event
effective dose
Opis:
The term �gradon event�h indicates here a sudden appearance of enhanced radon concentrations, observed like well expressed peaks in time series of radon concentrations. The peaks are superimposed on normal diurnal periodical curves. The characteristics of radon events are high peak values, a rather short duration and a low radon equilibrium factor. Since radon events appear only in the environment near significant radon emission sources, they were investigated in more detail in the case of the former .irovski Vrh uranium mine (Slovenia), using the existing network of continuous radon progeny measuring devices. Eight different types of radon events were identified in the vicinity of the U-mine disposal sites, lasting for some hours and with the range of their peak levels of equilibrium equivalent concentrations (EEC) of radon from a few Bq�Em.3 to over 200 Bq�Em.3. Exposures to radon events in units of Bq�Eh�Em.3 were estimated for adult individuals of the reference group. They resulted in relatively high effective doses of the range 1.5 �ĘSv per a single event, thus exceeding, e.g. the total effective dose for the public due to radioactive discharges from most nuclear facilities during the whole year.
Źródło:
Nukleonika; 2010, 55, 4; 529-533
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microbiological characterization of stable resuspended dust
Autorzy:
Kováts, Nora
Horváth, Eszter
Jancsek-Turóczi, Beatrix
Hoffer, András
Gelencsér, András
Urbán, Péter
Kiss, Írisz E.
Bihari, Zoltán
Fekete, Csaba
Powiązania:
https://bibliotekanauki.pl/articles/2177051.pdf
Data publikacji:
2015-11-23
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
stable
air quality
dust
microbial community
next generation sequencing
pathogens
Opis:
Objectives Air quality in the stables is characterized by elevated level of dust and aeroallergens which are supposed to directly cause or exacerbate several respiratory disorders. The most often recognized problem is recurrent airway obstruction (RAO), previously known as chronic obstructive pulmonary disease (COPD). There is some indication that aeroallergens (among them endotoxins) may also cause inflammation in human airways and may exceed safe levels in stables. Monitoring studies have covered mainly the determination of the concentration of respirable particles and of culturable fungi and their toxins. However, these particles do not only directly affect the respiratory system, but might act as a carrier conveying toxic contaminants and biological agents such as bacteria. In a typical, 20-horse Hungarian stable, microbial community of respirable fraction of resuspended dust has been characterized to reveal if these particles convey hazardous pathogenic bacteria, posing risk to either horses or staff. Material and Methods Resuspended dust was sampled using a mobile instrument. The instrument contains a PARTISOL-FRM model 2000 sampler that was operated at a flow rate of 16.7 l/min and a cyclone separator which collected the particulate matter with an aerodynamic size between 1 μm and 10 μm (PM 1–10) fraction. Microbial taxa were identified by culture-independent next generation sequencing (NGS) of variable 16S ribosomal ribonucleic acid (rRNA) gene regions. Results In total, 1491 different taxa were identified, of them 384 were identified to species level, 961 to genus level. The sample was dominated by common ubiquitous soil and organic material-dwelling taxa. Conclusions Pathogens occurred at low abundance, and were represented by mostly facultative human pathogens, with the prevalence of Staphylococcus species.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2016, 29, 3; 375-380
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania nad wpływem dodatku ziół do letniej diety owiec na wydatek sera podpuszczkowego typu bundz i jego wartość odżywczą
The influence of the addition of herbs to the summer diet of sheep on the yield of bundz rennet cheese and its nutritional value
Autorzy:
Jarzynowska, A.
Peter, E.
Powiązania:
https://bibliotekanauki.pl/articles/843756.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Zootechniczne
Tematy:
owce
zywienie zwierzat
zywienie letnie
dodatki paszowe
ziola
mleko owcze
sery podpuszczkowe
bundz
wydatek sera
wartosc odzywcza
Źródło:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego; 2018, 14, 2
1733-7305
Pojawia się w:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ dodatku ziół do letniej diety na profil kwasów tłuszczowych frakcji lipidowej mleka owiec
The effect of adding herbs to the summer diet on the fatty acid profile of the lipid fraction of sheep milk
Autorzy:
Jarzynowska, A.
Peter, E.
Powiązania:
https://bibliotekanauki.pl/articles/843415.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Zootechniczne
Tematy:
zywienie zwierzat
dodatki paszowe
zywienie letnie
ziola
owce
mleko owcze
profil kwasow tluszczowych
Źródło:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego; 2017, 13, 4
1733-7305
Pojawia się w:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ dodatku ziół do zimowej diety na profil kwasów tłuszczowych frakcji lipidowej mleka owiec
The effect of adding herbs to the winter diet on the fatty acid profile of the lipid fraction of sheep milk
Autorzy:
Jarzynowska, A.
Peter, E.
Powiązania:
https://bibliotekanauki.pl/articles/843870.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Zootechniczne
Tematy:
zywienie zwierzat
dodatki paszowe
zywienie zimowe
ziola
owce
mleko owcze
profil kwasow tluszczowych
Źródło:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego; 2017, 13, 4
1733-7305
Pojawia się w:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ dodatku ziół do zimowej diety owiec na wydatek sera podpuszczkowego typu bundz i jego wartość odżywczą
The influence of the addition of herbs to the winter diet of sheep on the yield of bundz rennet cheese and its nutritional value
Autorzy:
Jarzynowska, A.
Peter, E.
Powiązania:
https://bibliotekanauki.pl/articles/843884.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Zootechniczne
Tematy:
owce
zywienie zwierzat
zywienie zimowe
dodatki paszowe
ziola
mleko owcze
sery podpuszczkowe
bundz
wydatek sera
wartosc odzywcza
Źródło:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego; 2018, 14, 1
1733-7305
Pojawia się w:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mercury and methylmercury in Baltic Sea sediments, and Polish and Lithuanian soils
Autorzy:
Ignatavičius, Gytautas
Unsal, Murat H.
Busher, Peter E.
Wołkowicz, Stanisław
Satkūnas, Jonas
Valskys, Vaidotas
Powiązania:
https://bibliotekanauki.pl/articles/2201219.pdf
Data publikacji:
2022
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
mercury
methylmercury
soil
sediment
Lithuania
Polska
Baltic Sea
Opis:
We review the current environmental pollution by mercury in the soils of Poland and Lithuania and in the sediments of the Baltic Sea. Mercury is documented to have many negative impacts on the environment as a toxic trace element. In many different chemical forms, it is being released into the environment by both geogenic and anthropogenic activities, with most being released from anthropogenic sources. Methylmercury is considered one of the most toxic forms found in the environment. Mercury levels in sediment and various point sources increased after World War II in the Baltic Sea, which was used as a dumpsite. Previous studies show noticeable differences in total mercury in the Baltic Sea. In the Warta and Odra rivers in Poland, mercury levels are also higher than the background value, though recent findings suggest that river sediments are not the main source of mercury to marine sediments. Concentrations in soils in Poland and Lithuania were below the level of limit values (1 and 1.5 mg/kg-1 respectively), but Upper Silesia showed concentrations (up to 4.01 mg · kg-1) above the limit values. Furthermore, between 1992 and 2006, mercury levels in Wroc³aw dropped dramatically. The dominant trees in the area can affect mercury accumulation. No data were available for comparison with the soils in Estonia and Latvia.
Źródło:
Geological Quarterly; 2022, 66, 3; art. no. 22
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
"Ridge" Fermi Surface Study in Metallic (R)Ba$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-δ}$ (R = Y, Dy) and in Oxygen Deficient YBa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-δ}$ by Positron Annihilation
Autorzy:
Hoffmann, L.
Manuel, Α. A.
Barbiellini, B.
Peter, Μ.
Shukla, A.
Walker, E.
Powiązania:
https://bibliotekanauki.pl/articles/1933509.pdf
Data publikacji:
1995-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
74.72.Jt
74.72.Βk
71.25.Ηc
78.70.Bj
Opis:
We present a detailed positron 2D-ACAR measurements study of the "ridge" Fermi surface of (R)Ba$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-δ}$ (R = Y, Dy) compared to full-potential linearized augmented plane wave and linear muffin-tin orbital calculations. From different 2D-ACAR projections measured in DyBa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-δ}$, a 3D model of the momentum density of the ridge was established and is in good agreement with LMTO calculations of YΒa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7}$, confirming the description of the ridge Fermi surface by local density approximation calculations. The ridge is also studied in oxygen deficient YΒa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-δ}$. With growing δ, the ridge disappears without changing in width. This is consistent with full-potential linearized augmented plane wave calculations of YΒa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{6.5}$, and supports the phase separation model of Mesot et al.
Źródło:
Acta Physica Polonica A; 1995, 88, 1; 147-161
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth and study of nonlinear optical crystals at the Hungarian Academy of Sciences
Autorzy:
Földvári, I.
Polgár, K.
Péter, A.
Beregi, E.
Szaller, Z.
Powiązania:
https://bibliotekanauki.pl/articles/308743.pdf
Data publikacji:
2000
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
crystal growth
nonlinear optical materials
Opis:
The former Research Laboratory for Crystal Physics continues the growth and defect structure investigation of nonlinear optical single crystals in a new organization, as a part of the Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences. The aim of the activity is to prepare specific crystals for basic and applied research as well as for applications. We improve the quality or modify the properties of well known nonlinear oxide and borate crystals and develop new materials. The principle nonlinear optical crystals in our profile are the followings: Paratellurite (TeO2), congruent, Mg-doped and stoichiometric lithium niobate (LiNbO3), a variety of sillenite structured crystals (Bi12MeO20, Me=Si, Ge, Ti, etc.), bismuth tellurite (Bi2TeO5) and nonlinear borates (BBO-beta-BaB2O4, LBO-LiB3O5, LTB-Li2B4O7, CLBO-CsLiB6O10 and YAB-YAI3(BO3)4). Details of the crystal preparation and the major achievements are discussed in the paper.
Źródło:
Journal of Telecommunications and Information Technology; 2000, 1-2; 37-41
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
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