1.

Record Nr.

UNISA996466579903316

Autore

Jungnickel D (Dieter), <1952->

Titolo

Combinatorial theory : proceedings of a conference held at Schloss Rauischholzhausen, May 6-9, 1982 / / D. Jungnickel and K. Vedder

Pubbl/distr/stampa

Berlin ; ; Heidelberg : , : Springer Verlag, , [1982]

©1982

ISBN

3-540-39380-3

Edizione

[1st ed. 1982.]

Descrizione fisica

1 online resource (VIII, 332 p.)

Collana

Lecture Notes in Mathematics

Disciplina

511.6

Soggetti

Combinatorial analysis

Combinatorial analysis - Data processing

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Bibliographic Level Mode of Issuance: Monograph

Nota di contenuto

Critical perfect systems of difference sets with the minimum start -- Some aspects of coding theory between probability, algebra, combinatorics and complexity theory -- Generalized SCHUR numbers -- Description of spherically invariant random processes by means of g-functions -- Geometries for the mathieu group M12 -- Orbits and enumeration -- Pictures and skew (reverse) plane partitions -- A canonical partition theorem for chains in regular trees -- Incidence algebras, exponential formulas and unipotent groups -- On irreducible translation planes in odd characteristic, I -- The equivalence classes of the Vasil'ev codes of length 15 -- On the new projective planes of R. Figueroa -- Counting symmetry classes of functions by weight and automorphism group -- Quadruple systems over Zp admitting the affine group -- Arcs and ovals in steiner triple systems -- On dedekind numbers -- Regular sets and quasi-symmetric 2-designs -- Asymptotic 0–1 laws in combinatorics -- Generalized block designs as approximations for optimal coverings -- A graphic theory of associativity and wordchain patterns -- Elusive properties.



2.

Record Nr.

UNINA9910825897003321

Autore

Walde Sebastian

Titolo

AlN base layers for UV LEDs / / Sebastian Walde

Pubbl/distr/stampa

Göttingen : , : Cuvillier Verlag, , [2021]

©2021

ISBN

3-7369-6451-X

Edizione

[1st ed.]

Descrizione fisica

1 online resource (157 pages)

Collana

Innovationen mit Mikrowellen und Licht. Forschungsberichte aus dem Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik ; ; v.66

Disciplina

621.32

Soggetti

LED lighting

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Intro -- Introduction and Motivation -- CHAPTER 1  Experimental methods -- 1.1 Heteroepitaxial growth of AlN on sapphire -- 1.2 AlN templates as UV LED base layers -- 1.3 State of research -- CHAPTER 2 Experimental methods -- 2.1 Sample fabrication -- 2.2 Characterisation methods -- 2.3 Method for light extraction simulations -- CHAPTER 3 High temperature annealing of MOVPE grown AlN -- 3.1 Annealing of 350 nm thick AlN -- 3.2 Annealing of layer thickness series -- 3.3 Variation of the annealing parameters -- CHAPTER 4 Nanopatterned sapphire substrates -- 4.1 Light extraction simulations of nanopatternedinterface -- 4.2 Growth on sapphire nanopillars -- 4.3 Growth on sapphire nanoholes -- CHAPTER 5 UVC LED performance on the developed AlN templates -- Conclusion -- APPENDIX A.