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Tytuł:
Synthesis and Characterization of Au-Zn Nanoalloy by Laser Irradiation in Liquid Media
Autorzy:
Hajiesmaeilbaigi, F.
Fazeli Jadidi, M.
Motamedi, A.
Powiązania:
https://bibliotekanauki.pl/articles/1490748.pdf
Data publikacji:
2012-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.16.Mk
Opis:
Alloy nanoparticles due to their possibility of regulation, the region of absorption peak and consequently their optical and electrical properties, have a specific significance. In this research, nanosecond laser pulses of Nd:YAG laser with 532 nm wavelength that is close to absorption peak of gold and zinc nanoparticles, were used for synthesis of alloy. Atomic absorption spectrum UV-Visible, X-ray diffraction analysis and transmission electron microscopy images were utilized for characterization as well. For synthesis of Au-Zn alloy nanoparticles, zinc and gold nanoparticles were prepared separately by laser ablation method and then the mixture of their colloidal solutions with specified ratio was exposed to laser radiation. Thereby, gold and zinc nanoparticles were combined by absorbing of laser beam and gaining of required energy for melting, and Au-Zn alloy nanoparticles were formed. Wavelength of 532 nm is more effective in the formation of alloy than 1064 nm because of being close to wavelength of surface plasmon resonance of gold and zinc nanoparticles. Increase of concentration of gold nanoparticles compared to zinc nanoparticles in the mixed solution causes that gold nanoparticles absorb the most of the energy of laser and then larger gold particles are created, so alloy nanoparticles are not formed. The best time duration for irradiation and accomplishment of alloy formation is 30 min.
Źródło:
Acta Physica Polonica A; 2012, 121, 1; 59-61
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pedagogia i tajemnica głosu Boga (Mk 1,11; 9,7)
Autorzy:
Malina, Artur
Powiązania:
https://bibliotekanauki.pl/articles/1623907.pdf
Data publikacji:
2005
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II
Tematy:
Ewangelia wg św. Marka
Mk 1
11
Mk 9
7
słowo
Opis:
Nel Vangelo di Marco si trovano due dichiarazioni sulla relazione filiale di Gesu con Dio. Queste parole sono introdotte nella narrazione dalle locuzioni: »una voce divenne dai cieli« e »divenne una voce dalla nube«. Il contenuto stesso delle dichiarazioni viene studiato ampiamente e profondamente dagli esegeti. Le introduzioni narrative alle dichiarazioni meritano peró un'attenzione particolare. Lo studio mette in risalto la funzione pedagogica e mistagogica della presenza e dell'attivita della voce divina, sia quella pronunciata da Dio stesso su Gesu, che quella rivolta a Lui da Gesu morente, di rivelare l'identita di Gesu come figlio di Dio e di condurre i discepoli nella sua sequella a partecipare alla comunione divina, indisturbata da tutte le altre voci.
Źródło:
Verbum Vitae; 2005, 7; 93-118
1644-8561
2451-280X
Pojawia się w:
Verbum Vitae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ewangelia a bluźnierstwo przeciw Duchowi świętemu (Mk 3,29; 12,40)
Autorzy:
Malina, Artur
Powiązania:
https://bibliotekanauki.pl/articles/1627318.pdf
Data publikacji:
2002-12-14
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II
Tematy:
Ewangelia wg św. Marka
bluźnierstwo
Ewangelia
Mk 3
29
Mk 12
40
Opis:
L’avvertimento sulla privazione eterna della remissione dei peccati (3,29) e l’annuncio di una punizione massima per gli scribi (12,40) sembrano contrastare fortemente con la comprensione del vangelo come Lieta Notizia. Le parole di Gesù costituiscono però l’occasione per rivelare che la sua persona e attività, legate all’opera dello Spirito Santo, portano la remissione di tutti i peccati e di tutte le bestemmie. In questo modo l’atteggiamento richiesto dagli uomini di fronte a Gesù e al suo insegnamento diventa fondamentale per il loro rapporto con Dio. Il contenuto essenziale del Vangelo, concepito come Lieta Notizia, è che in Gesù si fonda definitivamente questo rapporto. Il castigo di cui parla Gesù nel suo ultimo discorso pubblico viene dalla perdita dei benefici annunciati e portati da Lui.
Źródło:
Verbum Vitae; 2002, 2; 109-126
1644-8561
2451-280X
Pojawia się w:
Verbum Vitae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effective Ion Charge
Autorzy:
Moneta, Marek
Powiązania:
https://bibliotekanauki.pl/articles/1945404.pdf
Data publikacji:
1996-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
34.50.Bw
61.80.Mk
Opis:
The impact parameter dependent energy transfer and random stopping power for ions carrying electrons were determined within the first-order Born approximation. The ion and atom were described by many-electron ground states. The excitations and ionizations of both collision partners were taken into account, but exchange of electrons was neglected. With the Bethe sum rule and closure relation, the random stopping was shown to have the Bethe form. For the Moliere form factors the analytical results were obtained. The effective charge was discussed in the random and channelling conditions. Comparison with some previous calculations was carried out.
Źródło:
Acta Physica Polonica A; 1996, 89, 5-6; 581-594
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Correlated Thermal Vibrations on Temperature Dependence of Surface Peak
Autorzy:
Gwizdałła, T.
Czerbniak, J.
Powiązania:
https://bibliotekanauki.pl/articles/1943974.pdf
Data publikacji:
1996-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.80.Mk
63.20.-e
Opis:
The influence of correlation between thermal displacements of atoms in string on the calculated Rutherford backscattering spectra under channelling conditions was studied. This correlation was incorporated into the existing Monte Carlo computer code by means of sampling the displacements from distribution transformed by the variance-covariance matrix. Various methods of implementing the correlation into calculation were used. As a result the deformation of energy spectrum was obtained. The explicit decrease in surface peak due to the correlation was observed. The significance of this effect decreases with increasing temperature. Calculation were performed in a wide region of temperatures, up to the melting point.
Źródło:
Acta Physica Polonica A; 1996, 89, 1; 61-67
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Propagation of Long Fatigue Cracks under Remote Modes II and III in Ferritic-Pearlitic Steel
Autorzy:
Vojtek, T.
Pokluda, J.
Hohenwarter, A.
Pippan, R.
Powiązania:
https://bibliotekanauki.pl/articles/1402098.pdf
Data publikacji:
2015-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
62.20.Mk
81.40.Np
Opis:
The aim of this research was to determine the 3D crack path and the related growth micromechanism in specimens made of the ferritic-pearlitic steel loaded in modes II and III. Crack closure effects were minimized at the beginning of the experiments by a special technique of generation of precracks in order to measure effective values of fatigue thresholds. Dependences of the crack growth rate on the stress intensity factor range were plotted for the near-threshold region. The effective mode III threshold $\DeltaK_text{IIIeff,th}=4.4 MPam^{1//2}$ was found to be higher than that for mode II ($\DeltaK_\text{IIeff,th}=2.9 MPam^{1//2}$, the theory predicts $3.1 MPam^{1//2}$) which is in agreement with the results for other metallic materials and available theoretical models. Fractographical observations in three dimensions revealed that the remote mode II cracks deflected towards the opening mode I by the mean angle ≈50°, which is significantly different from the low-angle deflections (coplanar growth) previously observed in the ARMCO iron. The simple linear elastic fracture mechanics based criterion for growth of a mode I branch at the crack front loaded in mode II was fulfilled.
Źródło:
Acta Physica Polonica A; 2015, 128, 4; 611-614
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermally Induced Intermixing of InGaAs/GaAs Single Quantum Wells
Autorzy:
Kozanecki, A.
Gillin, W.
Sealy, B.
Powiązania:
https://bibliotekanauki.pl/articles/1861378.pdf
Data publikacji:
1993-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.80.Mk
78.65.Fa
Opis:
In this work interdiffusion and strain relaxation in In$\text{}_{0.2}$Ga$\text{}_{0.8}$As/GaAs single quantum wells subjected to rapid thermal annealing have been studied using photoluminescence and Rutherford backscattering of 1.5 MeV He$\text{}^{+}$ ions. It has been found that the diffusion coefficient of In atoms in GaAs, evaluated from the photoluminescence spectra for the assumed Gaussian well shapes, agrees within 30% with that obtained using Rutherford backscattering. Channeling angular scans, through the ⟨110⟩ axial direction of the heterostructures indicate that strain relaxation in the intermixed wells is exclusively due to compositional shallowing of the wells.
Źródło:
Acta Physica Polonica A; 1993, 84, 4; 621-624
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spin Switch and Spin Amplifier: Magnetic Bipolar Transistor in the Saturation Regime
Autorzy:
Fabian, J.
Žutić, I.
Powiązania:
https://bibliotekanauki.pl/articles/2038211.pdf
Data publikacji:
2004-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
72.25.Dc
72.25.Mk
Opis:
It is shown that magnetic bipolar transistors can amplify currents even in the saturation regime, in which both the emitter-base and collector-base junctions are forward biased. The collector current and the current gain can change sign as they depend on the relative orientation of the equilibrium spin in the base and on the nonequilibrium spin in the emitter and collector. The predicted phenomena should be useful for electrical detection of nonequilibrium spins in semiconductors, as well as for magnetic control of current amplification and for current switching.
Źródło:
Acta Physica Polonica A; 2004, 106, 2; 109-118
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anti-schizophrenic activities of histamine H3 receptor antagonists in rats treated with MK-801
Autorzy:
Mahmood, D.
Akhtar, M.
Powiązania:
https://bibliotekanauki.pl/articles/972708.pdf
Data publikacji:
2015
Wydawca:
Instytut Medycyny Wsi
Tematy:
animal model
antischizophrenic activity
histamine H3 receptor
antagonist
rat
treatment
MK-801
dizocilpine zob.MK-801
Opis:
Animal models based on N-methyl-d-aspartate (NMDA) receptor blockade have been widely reported. Ketamine and MK-801, the two noncompetitive antagonists of NMDA receptors, produce behaviors related to schizophrenia and exacerbated symptoms in patients with schizophrenia. The study presented here investigated the effect of subchronic dosing (once-daily, 7 day) of histamine H3 receptor (H3R) antagonists, ciproxifan (CPX) (3 mg/kg, i.p.) and clobenpropit (CBP) (15 mg/kg, i.p) including clozapine (CLZ) (3.0 mg/kg, i.p.) and chlorpromazine (CPZ) (3.0 mg/kg, i.p.), the atypical and typical antipsychotic, respectively, on MK-801(0.2 mg/kg, i.p.)-induced locomotor activity, and dopamine and histamine levels in rats. Atypical and typical antipsychotic was used to serve as clinically relevant reference agents to compare the effects of the H3R antagonists. MK-801 significantly increased horizontal activity which was reduced with CPX and CBP. The attenuation of MK-801-induced locomotor hyperactivity produced CPX and CBP were comparable to CLZ and CPZ. Dopamine and histamine levels were measured in striatum and hypothalamus, respectively, of rat brain. The MK-801 induced increase of the striatal dopamine level was reduced in rats pretreated with CPX and CBP including CLZ. CPZ also significantly lowered striatal dopamine levels, though the decrease was less robust compared to CLZ, CPX and CBP. MK-801 increased histamine content although to a lesser degree. Subchronic treatment with CPX and CBP exhibited further increased histamine levels in the hypothalamus compared to MK-801 treatment alone. Histamine H3 receptor agonist, R-α methylhistamine (10 mg/kg, i.p.) counteracted the effect of CPX and CBP. The findings of the present study support our previous work showing positive effects of CPX and CBP on MK-801-induced schizophrenia like behaviors in rodents. However, clinical studies have reported no antipsychotic effects with histamine H3 receptor antagonists.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2015, 09, 1; 11-17
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microwave reference systems
Mikrofalowe systemy referencyjne
Autorzy:
Pawelski, J.
Powiązania:
https://bibliotekanauki.pl/articles/314390.pdf
Data publikacji:
2017
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
system mikrofalowy
przemysł off-shore
system Artemis Mk6
microwave system
off-shore industry
Artemis Mk6 system
Opis:
Paper discussed unique microwave systems used in offshore industry for position referencing. First purpose built system entered market in 1972 and was partly associated with Dutch Delta Works. This system after several modifications is still in use as Artemis Mk6.Currently, two other, more advanced microwave reference systems are in use. Their introduction eliminated some disadvantages of earlier equipment. Today, reliable microwave reference systems are extensively used in offshore industry for high risk operations in difficult meteorological conditions.
Artykuł analizuje unikalne systemy mikrofalowe, używane w przemyśle offshorowym w charakterze systemów odniesienia pozycji. Pierwszy, zbudowany specjalnie w tym celu system, pojawił się na rynku w 1972 roku i był częściowo związany z Planem Delta. System ten, po wielu modyfikacjach, wciąż pozostaje w użytku jako Artemis Mk6. Obecnie, dwa inne, bardziej zaawansowane technicznie systemy są w eksploatacji. Wprowadzenie ich pozwoliło na eliminację pewnych niedostatków poprzedniego urządzenia. Obecnie, niezawodne mikrofalowe systemy odniesienia pozycji są powszechnie używane przez przemysł offshorowy w operacjach obarczonych wysokim ryzykiem i w trudnych warunkach meteorologicznych.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2017, 18, 6; 1020-1023, CD
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Giovanni Ibba, Il Vangelo di Marco e l’impuro (Antico e Nuovo Testamento 22; Brescia: Morcelliana, 2014)
Autorzy:
Bąk, Tomasz Bartłomiej
Powiązania:
https://bibliotekanauki.pl/articles/1053600.pdf
Data publikacji:
2016-01-29
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II
Tematy:
Nowy Testament
Marek
Mk
Ewangelia Marka
czystość rytualna
Opis:
Book Review: Giovanni Ibba, Il Vangelo di Marco e l’impuro (Antico e Nuovo Testamento 22; Brescia: Morcelliana, 2014). Pp. 128. €12. ISBN 978-88-372-2754-8.
Źródło:
The Biblical Annals; 2016, 6, 1; 141-146
2083-2222
2451-2168
Pojawia się w:
The Biblical Annals
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
"Nie tak ma być wśród was" (Mk 10,43). Model pierwszeństwa w Kościele
Autorzy:
Malina, Artur
Powiązania:
https://bibliotekanauki.pl/articles/1627223.pdf
Data publikacji:
2004
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II
Tematy:
Ewangelia wg św. Marka
Mk 10
43
pierwszeństwo
Kościół
Opis:
La riflessione sulla questione dell’autorità nella Chiesa non può prescindere dalle parole di Gesù: «Fra voi non è però così; ma chi vuol essere grande tra voi si farà vostro servitore» (Mc 10,43). Il desiderio dei discepoli di occupare i primi posti nella gloria di Gesù corrisponde alla loro posizione privilegiata durante la sua attività pubblica. Tuttavia, essi devono tenere conto del compimento della sorte del Figlio dell’uomo. L’aspirazione ai primi posti deve condurre al desiderio del servizio ai discepoli fino al sacrificio secondo il modello di Gesù.
Źródło:
Verbum Vitae; 2004, 6; 115-128
1644-8561
2451-280X
Pojawia się w:
Verbum Vitae
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 180

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