Search results for "Inde"
showing 10 items of 7365 documents
Long-transient conoscopic pattern technique
1999
0038-1098; Recent results on laser induced anisotropy in terbium gallium garnet are extended to the dynamic regime. We observed that the characteristic conoscopic pattern formation time presents a quadratic dependence on the beam size. The observed pattern intensity is accounted for by a simple analytical formula. The transient refractive index change due to thermal stress in the terbium gallium garnet is determined. (C) 1999 Elsevier Science Ltd. All rights reserved.
Refractive index sensing by a silicon metasurface
2022
The availability of smart materials represents a key enabling milestone for the realization of smart sensors. In this research field, optical sensing has gained a lot of attention in various applications ranging from basic physics to chemistry and biology. Here, we exploit the non-invasive nature of light to achieve an innovative sensor based on all-optical dielectric nano-resonators arranged in a periodic fashion. The proposed sensor can measure refractive index changes up to 10(-6).
Water distribution network robust design based on energy surplus index maximization
2015
The aim of this paper is to show that energy surplus indices, such as resilience index, besides providing a very good indirect measure of water distribution network reliability to be adopted during the design phase, represent also a valuable and effective indicator of the robustness of the network in alternative network scenarios, and can thus be profitably used in condition of future demands uncertainty. The methodology adopted consisted of (I) multi-objective design optimization performed in order to minimize construction costs while maximizing the resilience index; (II) retrospective performance assessment of the alternative solutions of the Pareto front obtained, under demand conditions…
“LATVIA WILL ALWAYS BE MY HOME”: LATVIAN EMIGRANTS IN SWEDEN AFTER 1991 IN THE LATVIAN NATIONAL ORAL HISTORY COLLECTION
2020
Latvians are one of the most mobile European nations. Latvian migration to Sweden has a long history. After the II World War, more than 4,000 people moved from Latvia to Sweden, fleeing Soviet power. The second wave of immigration to Sweden began with the restoration of Latvian independence in 1991 and continues to this day. Both of these waves of migration are documented in the Latvian National Oral History collection. This article analyzes life-story interviews with expatriates in Sweden after the restoration of independence and explores how the migrants themselves describe their experiences in their new home country, their reflections on Latvians, Latvianness, and the preservation of nat…
Volume preserving mean curvature flows near strictly stable sets in flat torus
2021
In this paper we establish a new stability result for the smooth volume preserving mean curvature flow in flat torus $\mathbb T^n$ in low dimensions $n=3,4$. The result says roughly that if the initial set is near to a strictly stable set in $\mathbb T^n$ in $H^3$-sense, then the corresponding flow has infinite lifetime and converges exponentially fast to a translate of the strictly stable (critical) set in $W^{2,5}$-sense.
Síntesis de Protoberberinas y Ciclopentil-isoquinoleínas Dopaminérgicas, y Síntesis de Indenopiridinas Melatoninérgicas
2015
Resumen – Discusión de los resultados. En la presente Tesis Doctoral se han desarrollado diversas rutas de síntesis para la obtención de alcaloides isoquinoleínicos, con diferentes esqueletos, y de hexahidroindenopiridinas. Además se han realizado sus correspondientes ensayos farmacológicos, sobre distintas dianas biológicas basándonos en los resultados obtenidos previamente con este tipo de alcaloides de síntesis y/o aislados de la naturaleza, y de moléculas estructuralmente similares. Se ha observado, a lo largo de muchos años, que las IQ son uno de los metabolitos secundarios activos (MSA) más abundantes y de mayor interés farmacológico de los aislados en especies de la familia de las An…
A note on Sylow permutable subgroups of infinite groups
2014
Abstract A subgroup A of a periodic group G is said to be Sylow permutable, or S-permutable, subgroup of G if A P = P A for all Sylow subgroups P of G. The aim of this paper is to establish the local nilpotency of the section A G / Core G ( A ) for an S-permutable subgroup A of a locally finite group G.
On some classes of supersoluble groups
2007
[EN] Finite groups G for which for every subgroup H and for all primes q dividing the index |G:H| there exists a subgroup K of G such that H is contained in K and |K:H|=q are called Y-groups. Groups in which subnormal subgroups permute with all Sylow subgroups are called PST-groups. In this paper a local version of the Y-property leading to a local characterisation of Y-groups, from which the classical characterisation emerges, is introduced. The relationship between PST-groups and Y-groups is also analysed.
Finite groups with all minimal subgroups solitary
2016
We give a complete classification of the finite groups with a unique subgroup of order p for each prime p dividing its order. All the groups considered in this paper will be finite. One of the most fruitful lines in the research in abstract group theory during the last years has been the study of groups in which the members of a certain family of subgroups satisfy a certain subgroup embedding property. The family of the subgroups of prime order (also called minimal subgroups) has attracted the interest of many mathematicians. For example, a well-known result of Itˆo (see [8, Kapitel III, Satz 5.3; 9]) states that a group of odd order with all minimal subgroups in the center is nilpotent. Th…
Variational parabolic capacity
2015
We establish a variational parabolic capacity in a context of degenerate parabolic equations of $p$-Laplace type, and show that this capacity is equivalent to the nonlinear parabolic capacity. As an application, we estimate the capacities of several explicit sets.