Thematische Bibliographien / Complexe ZZS

Inhaltsverzeichnis

  1. Zeitschriftenartikel
  2. Dissertationen
  3. Buchteile
  4. Konferenzberichte
  5. Berichte der Organisationen

Auswahl der wissenschaftlichen Literatur zum Thema „Complexe ZZS“

Autor: Grafiati
Veröffentlicht am 25. Mai 2024

Geben Sie eine Quelle nach APA, MLA, Chicago, Harvard und anderen Zitierweisen an

Wählen Sie eine Art der Quelle aus:

Machen Sie sich mit den Listen der aktuellen Artikel, Bücher, Dissertationen, Berichten und anderer wissenschaftlichen Quellen zum Thema "Complexe ZZS" bekannt.

Neben jedem Werk im Literaturverzeichnis ist die Option "Zur Bibliographie hinzufügen" verfügbar. Nutzen Sie sie, wird Ihre bibliographische Angabe des gewählten Werkes nach der nötigen Zitierweise (APA, MLA, Harvard, Chicago, Vancouver usw.) automatisch gestaltet.

Sie können auch den vollen Text der wissenschaftlichen Publikation im PDF-Format herunterladen und eine Online-Annotation der Arbeit lesen, wenn die relevanten Parameter in den Metadaten verfügbar sind.

Zeitschriftenartikel zum Thema "Complexe ZZS"

1

Dais, Tyson N., Rina Takano, Takayuki Ishida und Paul G. Plieger. „Lanthanide induced variability in localised CoII geometries of four triangular L3Co3IILnIII complexes“. RSC Advances 12, Nr. 8 (2022): 4828–35. http://dx.doi.org/10.1039/d1ra08797e.

Der volle Inhalt der Quelle
Annotation:
Four acyclic CoII–3LnIII triangle complexes are reported in which two Co ions in each complex are octahedral while the third Co exhibits a lanthanide dependent coordination geometry. Magnetic analysis of the La complex shows a large ZFS effect for Co.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2

Jiang, Heng, Jie Zhang, Yibo Zeng, Yanli Chen, Hang Guo, Lei Li, Xin Chen und Ying Zhang. „Two-dimensional ZnS@N-doped carbon nanoplates for complete lithium ion batteries“. Nanotechnology 33, Nr. 6 (18.11.2021): 065406. http://dx.doi.org/10.1088/1361-6528/ac3540.

Der volle Inhalt der Quelle
Annotation:
Abstract Metal sulfides are promising anode materials for lithium ion batteries because of the high specific capacities and better electrochemical kinetics comparing to their oxide counterparts. In this paper, novel monocrystalline wurtzite ZnS@N-doped carbon (ZnS@N–C) nanoplates, whose morphology and phase are different from the common ZnS particles with cubic phase, are successfully synthesized. The ZnS@N–C nanoplates exhibit long cycle life with a high reversible specific capacity of 536.8 mAh · g−1 after 500 cycles at a current density of 500 mA · g−1, which is superior to the pure ZnS nanoplates, illustrating the obvious effect of the N-doped carbon coating for mitigating volume change of the ZnS nanoplates and enhancing the electronic conductivity during charge/discharge processes. Furthermore, it is revealed that the ZnS single crystals with wurtzite phase in the ZnS@N–C nanoplates are transformed to the polycrystalline cubic phase ZnS after charge/discharge processes. In particular, the ZnS@N–C nanoplates are combined with the commercial LiNi0.6Co0.2Mn0.2O2 cathode to fabricate a new type of LiNi0.6Co0.2Mn0.2O2/ZnS@N–C complete battery, which exhibits good cycling durability up to 120 cycles at a charge/discharge rate of 1 C after the prelithiation treatment on the ZnS@N–C anode, highlighting the potential of the ZnS@N–C nanoplates anode material applied in lithium ion battery.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3

Onwudiwe, Damian C., Jerry O. Adeyemi, Rebecca T. Papane, Felicia F. Bobinihi und Eric Hosten. „Synthesis, optical and structural characterisation of ZnS nanoparticles derived from Zn(ii) dithiocarbamate complexes“. Open Chemistry 19, Nr. 1 (01.01.2021): 1134–47. http://dx.doi.org/10.1515/chem-2021-0094.

Der volle Inhalt der Quelle
Annotation:
Abstract Zinc sulphide nanoparticles represented as ZnS1, ZnS2 and ZnS3 have been prepared from Zn(ii) N-methyl-N-ethanoldithiocarbamate (1) complex and its 2,2′-bipyridine (2) and 1,10′-phenanthroline (3) adducts, respectively. Both the parent complex (1) and the adducts (2) and (3) were characterised by spectroscopic techniques and elemental analysis. In the solid state, the structures of complexes (1) and (2) were established using single-crystal X-ray analysis. Complex (1) possessed a distorted trigonal bipyramidal geometry about the zinc centre, whilst forming a dimer via bidentate bridging coordination between two opposite dithiocarbamate motifs. On the other hand, complex (2) formed a trigonal prismatic geometry about the Zn centre with a ZnS4N2 chromophore. The decomposition of the complexes in hexadecylamine afforded spherical-shaped ZnS nanoparticles of the cubic sphalerite crystal phase. The transmission electron microscopy (TEM) micrographs showed that the average particles size of ZnS1, ZnS2 and ZnS3 were 2.63, 5.27 and 6.52 nm, respectively. In the optical study, the estimated bandgap energies were found in the range between 4.34 and 4.08 eV, which indicated a blue shift when compared with the bandgap energy of bulk ZnS.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4

Bentley, Blake, Fadi Chanaa und Steven Clayton. „Complete Esophageal Obstruction: A Rare Complication of Zollinger-Ellison Syndrome“. ACG Case Reports Journal 10, Nr. 11 (November 2023): e01205. http://dx.doi.org/10.14309/crj.0000000000001205.

Der volle Inhalt der Quelle
Annotation:
ABSTRACT Complete esophageal obstruction (CEO) is a rare phenomenon usually observed after receiving head and neck radiation. Zollinger-Ellison syndrome (ZES) is typically associated with minimal esophageal morbidity because of advancements in antisecretory medications. There are currently no documented reports of CEO in patients with ZES. Although surgeries are available for the treatment of CEO, there is no established method for endoscopic lumen restoration, given its rarity. This case documents potential sequala of modern-day patients with ZES.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5

Corti, Fabio, Alberto Reatti, Ya-Hui Wu, Dariusz Czarkowski und Salvatore Musumeci. „Zero Voltage Switching Condition in Class-E Inverter for Capacitive Wireless Power Transfer Applications“. Energies 14, Nr. 4 (09.02.2021): 911. http://dx.doi.org/10.3390/en14040911.

Der volle Inhalt der Quelle
Annotation:
This paper presents a complete design methodology of a Class-E inverter for capacitive wireless power transfer (CWPT) applications, focusing on the capacitance coupling influence. The CWPT has been investigated in this paper, because most of the literature refers to inductive power transfer (IWPT). However, CWPT in perspective can result in lower cost and higher reliability than IWPT, because it does not need coils and related shields. The Class-E inverter has been selected, because it is a single switch inverter with a grounded MOSFET source terminal, and this leads to low costs and a simple control strategy. The presented design procedure ensures both zero voltage switching (ZVS) and zero derivative switching (ZDS) conditions at an optimum coupling coefficient, thus enabling a high transmission and conversion efficiency. The novelties of the proposed method are that the output power is boosted higher than in previous papers available in the literature, the inverter is operated at a high conversion efficiency, and the equivalent impedance of the capacitive wireless power transfer circuit to operate in resonance is exploited. The power and the efficiency have been increased by operating the inverter at 100 kHz so that turn-off losses, as well as losses in inductor and capacitors, are reduced. The closed-form expressions for all the Class-E inverter voltage and currents waveforms are derived, and this allows for the understanding of the effects of the coupling coefficient variations on ZVS and ZDS conditions. The analytical estimations are validated through several LTSpice simulations and experimental results. The converter circuit, used for the proposed analysis, has been designed and simulated, and a laboratory prototype has been experimentally tested. The experimental prototype can transfer 83.5 W at optimal capacitive coupling with operating at 100 kHz featuring 92.5% of the efficiency, confirming that theoretical and simulation results are in good agreement with the experimental tests.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6

Смагин, В. П., Л. В. Затонская, Е. Г. Ильина und Е. П. Харнутова. „Фотолюминесценция композиций полиметилметакрилат/(Zn, Cu, Ag)S : Eu-=SUP=-3+-=/SUP=-“. Физика твердого тела 62, Nr. 7 (2020): 1074. http://dx.doi.org/10.21883/ftt.2020.07.49476.037.

Der volle Inhalt der Quelle
Annotation:
Luminescent nanoscale particles (quantum dots) (Zn,Cu,Ag)S:Eu3+ were synthesized during decomposition of thioacetamide complexes of metals in a methylmethacrylate medium during block polymerization under heating. The formation of quantum dots is confirmed by the corresponding band in the optical absorption spectrum of polymer compositions. Photoluminescence of PMMA/(Zn,Cu,Ag)S:Eu3+ compositions is manifested as a complex band associated with defects in the crystal structure formed when ZnS was doped with copper and silver ions, and a set of narrow bands of luminescence of Eu3+ ions. Luminescence excitation occurs as a result of inter-zone transitions and electron transitions from the valence band to the ZnS defect levels, and self-absorption of energy by Eu3+ ions. The relationship of ions Eu3+ particles of ZnS is confirmed by the dependence of the intensity of the broadband luminescence of ZnS with increasing concentration of ions Eu3+ and an increase in intensity narrow-band luminescence of ions Eu3+ as a result of energy transfer from levels of doped ZnS crystals on the energy levels of the ions Eu3+.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7

Martynenko, Irina V., Anna O. Orlova, Vladimir G. Maslov, Alexander V. Baranov, Anatoly V. Fedorov und Mikhail Artemyev. „Energy transfer in complexes of water-soluble quantum dots and chlorin e6 molecules in different environments“. Beilstein Journal of Nanotechnology 4 (13.12.2013): 895–902. http://dx.doi.org/10.3762/bjnano.4.101.

Der volle Inhalt der Quelle
Annotation:
The photoexcitation energy transfer is found and investigated in complexes of CdSe/ZnS cationic quantum dots and chlorin e6 molecules formed by covalent bonding and electrostatic interaction in aqueous solution and in porous track membranes. The quantum dots and chlorin e6 molecules form stable complexes that exhibit Förster resonance energy transfer (FRET) from quantum dots to chlorin e6 regardless of complex formation conditions. Competitive channels of photoexcitation energy dissipation in the complexes, which hamper the FRET process, were found and discussed.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8

Halaš, Petr, Ivan Nemec und Radovan Herchel. „Honey-like Odor Meets Single-Ion Magnet: Synthesis, Crystal Structure, and Magnetism of Cobalt(II) Complex with Aromatic Trans-Cinnamic Acid“. Magnetochemistry 9, Nr. 11 (16.11.2023): 229. http://dx.doi.org/10.3390/magnetochemistry9110229.

Der volle Inhalt der Quelle
Annotation:
The hexacoordinate Co(II) complex [Co(neo)2(cin)][BPh4]·½Me2CO (1·½Me2CO) containing trans-cinnamic acid (Hcin) and neocuproine (neo) was prepared. The compound 1·½Me2CO was characterized via single-crystal X-ray analysis, FT-IR spectroscopy, and magnetic measurements. The coordination polyhedron of the complex cation adopts a deformed octahedron shape, and cinnamate exhibits a bidentate mode of coordination, which is unusual for mononuclear Co(II) cinnamate complexes. The analysis of DC magnetic measurements with zero-field splitting (ZFS) spin Hamiltonian revealed large magnetic anisotropy defined by the axial ZFS parameter D = +53.2 cm−1. AC susceptibility measurements revealed the slow relaxation of magnetization under the applied field; thus, 1·½Me2CO behaves as a field-induced single-molecule magnet. The analysis of magnetic properties was also supported by CASSCF/NEVPT2 calculations.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9

Chakraborty, Avijit, Pradip Kumar Sadhu, Kallol Bhaumik, Palash Pal und Nitai Pal. „Behaviour of a High Frequency Parallel Quasi Resonant Inverter Fitted Induction Heater with Different Switching Frequencies“. International Journal of Electrical and Computer Engineering (IJECE) 6, Nr. 2 (01.04.2016): 447. http://dx.doi.org/10.11591/ijece.v6i2.pp447-457.

Der volle Inhalt der Quelle
Annotation:
<p>This paper investigates the behavior of a high frequency parallel quasiresonant<br />inverter fitted domestic induction heater with different switching frequencies. The power semiconductor switch Insulated Gate Bipolar Junction Transistor (IGBT) is incorporated in this high frequency inverter that can operate under ZVS and ZCS conditions during the switching operations at certain switching frequency to reduce switching losses. The proposed induction heating system responds to three different switching frequencies with providing different results. An Insulated Gate Bipolar Junction Transistor (IGBT) provides better efficiency and faster switching operations. After the complete study of the proposed induction heating system at the selected switching frequencies, the results are compared and it is decided that most reliable, efficient and effective operations from the proposed induction heater can be obtained if the switching frequency is selected slightly above the resonant frequency of the tank circuit of the resonant inverter. The proposed scheme is analyzed using Power System<br />Simulator (PSIM) environment.</p>
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10

Ernits, K., K. Muska, M. Danilson, J. Raudoja, T. Varema, O. Volobujeva und M. Altosaar. „Anion Effect of Zinc Source on Chemically Deposited ZnS(O,OH) Films“. Advances in Materials Science and Engineering 2009 (2009): 1–5. http://dx.doi.org/10.1155/2009/372708.

Der volle Inhalt der Quelle
Annotation:
The study on the anion effect of different Zn sources—Zn(CH3COO)2, ZnCl2, ZnI2, Zn(NO3)2and ZnSO4—on the chemical deposition of ZnS(O,OH) films revealed that the growth rate and composition of the ZnS(O,OH) layer depend on the instability constant (pK) value of the corresponding Zn-complex Zn(L)nin the chemical bath solution. In the region ofpKZn(NH3)2+>pKZn(L)nthe ZnS(O,OH) film's growth rate and ZnS concentration in films increased with the increasing pK value of the used Zn salt complex up to the pK value of theZn[NH3]2+complex and decreased in the region wherepKZn(NH3)2+<pKZn(L)n. The band gap values (around 3.6 eV in most cases) of deposited ZnS(O,OH) films did not depend on the Zn precursor's instability constant, the ZnS(O,OH) film from zinc nitrate containing bath has higher band gap energy (Eg= 3.8 eV). The maximum efficiency of CISSe and CZTSSe monograin layer solar cells was gained with ZnS(O,OH) buffer layer deposited from CBD solution containing Zn(CH3COO)2as Zn source, which provided the highest growth rate and ZnS concentration in the ZnS(O,OH) film on glass substrates.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Mehr Quellen

Dissertationen zum Thema "Complexe ZZS"

1

Pyatnitskaya, Alexandra. „Interplay between meiotic crossing-overs and chromosome architecture : role of the meiosis specific complex Zip2-Zip4-Spo16“. Electronic Thesis or Diss., Université Paris sciences et lettres, 2021. http://www.theses.fr/2021UPSLS061.

Der volle Inhalt der Quelle
Annotation:
La méiose est une étape essentielle de la reproduction chez tous les organismes sexués. En effet, celle-ci permet l’obtention de quatre gamètes haploïdes à partir d’une seule cellule diploïde grâce à la réalisation deux divisions successives suivant une seule étape de réplication. Un des éléments essentiels permettant une bonne ségrégation en première division méiotique est la création d’un échange physique entre les chromosomes homologues parentaux. Ce lien physique, plus communément appelé crossing-over (CO), est produit par un mécanisme de recombinaison entre les chromosomes homologues au cours de la prophase I méiotique. La recombinaison homologue est initiée par la formation simultanée de nombreuses cassures double-brin au sein du génome. Chez la levure de boulanger, la formation des COs est dépendante de la famille protéique ZMM (un acronyme pour Zip1/2/3/4-Msh4/5-Mer3-Spo16) composée de huit protéines hautement conservées, et impliquées dans la reconnaissance et la stabilisation des intermédiaires d’ADN formés au cours de la recombinaison homologue. Nous avons montré que la protéine Zip4 forme un complexe stable avec deux autres protéines ZMM, Zip2 et Spo16. Le complexe Zip2-Zip4-Spo16 (ZZS), de type XPF-ERCC1, serait capable de reconnaitre et de stabiliser les intermédiaires de recombinaison afin de promouvoir leur réparation en tant que CO. Chez les mammifères, Zip2 et Zip4 possèdent des homologues décrits, SHOC1 et TEX11 respectivement, mais aucun homologue n’a été découvert pour Spo16. Nous avons réalisé une analyse in silico et pu déterminer un homologue de Spo16 chez les mammifères, MmSPO16. Par la suite, j’ai pu co-purifier MmSPO16 avec le domaine XPF de SHOC1, ce qui suggère la conservation du complexe ZZS chez les mammifères. De plus, le processus de formation des COs est corrélé́ à la mise en place d’un complexe protéique formé entre les deux chromosomes homologues, appelé complexe synaptonémal (CS). Le CS est composé de deux éléments axiaux, accolés entre eux à une distance précise de 100 nm par la région centrale. La région centrale comprend un élément central, composé de l’hétérodimère Ecm11-Gmc2, et d’un élément transversal formé par la protéine Zip1. Les éléments transversaux partant des axes opposés se lient tête-bêche au niveau de l’élément central. Malgré des liens fonctionnels évidents entre la formation des COs et l’assemblage du CS entre les chromosomes homologues, aucun lien physique direct n’a été établi à ce jour. Au cours de mon doctorat, j’ai pu démontrer l’existence d’une interaction physique entre la protéine du CS Ecm11 et la protéine ZMM Zip4. Cette interaction est nécessaire pour la localisation et la polymérisation d’Ecm11 sur les chromosomes, l’assemblage correct du CS et la ségrégation des chromosomes homologues en première division méiotique
Meiosis is a highly conserved mechanism among organisms with sexual development. This process consists in producing four haploid gametes from one diploid cell by executing two successive rounds of cell division. During the first meiotic division, reciprocal exchanges of parental DNA strands, also known as crossing-overs (COs), ensure the faithful segregation of homologous chromosomes. COs arise from a specific type of DNA repair, homologous recombination. This pathway is initiated by the simultaneous induction of hundreds of double strand breaks (DSBs) in the genome. In budding yeast, the major CO pathway is promoted by a family of eight conserved proteins, named ZMMs (acronym for Zip1/2/3/4-Msh4/5-Mer3-Spo16), involved in recognizing and stabilizing DNA intermediates formed during homologous recombination. We showed that the Zip4 protein forms a stable tripartite complex with two other ZMM proteins, Zip2 and Spo16. Our data suggests that the Zip2-Zip4-Spo16 (ZZS) complex binds recombination intermediates through its XPF-ERCC1-like domain and drives them towards a CO fate. The homologs of Zip2 and Zip4 in mammals, SHOC1 and TEX11 respectively, have been described, but no Spo16 homolog has been found so far. We could identify the homolog of Spo16 in mammals by an in silico screen, MmSPO16. In addition, I could co-purify MmSPO16 with the XPF domain of SHOC1, thus revealing the potential conservation of the entire ZZS complex in mammals. ZMM-dependent COs are formed within the context of a meiosis-specific structure, named synaptonemal complex (SC). The SC is a proteinaceous structure composed of two axial elements physically maintained together at a precise distance of 100 nm by a central region. The central region encompasses a central element, composed of the two proteins Ecm11 and Gmc2, and the transverse filaments composed of Zip1. The transverse filaments from opposing axial elements overlap and bind head-to-head in the central element. However, despite evidence of a close relationship between SC assembly and CO formation, nothing is known about a direct link that could coordinate these two events spatially and temporally. During my PhD, I found a new interaction between the SC protein Ecm11 and the ZMM protein Zip4. This newly discovered interaction is necessary for Ecm11 association and polymerization on chromosomes, the SC assembly and the homolog disjunction in meiosis I. Our results suggest a direct connection that ensures SC assembly from CO sites through the Zip4-Ecm11 interaction. This way, ensuring SC polymerization from emerging CO sites could be a way of fine-tuning CO distribution, by participating to CO interference and/or by regulating nearby DSB formation. Moreover, I could identify an interaction between the mammalian ortholog of Zip4, TEX11, and one of the five members composing the SC central element, TEX12, raising the possibility that this mechanism synchronizing CO formation and SC polymerization could be conserved
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2

Bascopé, René Pastor Torrico. „Conversor CC-CC ponte completa ZVS-PWM com comando assimetrico“. reponame:Repositório Institucional da UFSC, 1994. https://repositorio.ufsc.br/handle/123456789/111792.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3

Vergara, Daskam Camilo Manuel. „Distribución de fluidos y fracturas en sistemas hidrotermales utilizando tomografías sísmicas 3D: Caso del Complejo Volcánico Tinguiririca“. Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/143138.

Der volle Inhalt der Quelle
Annotation:
Geólogo
La aplicación de tomografías sísmicas en sistemas volcánicos e hidrotermales permite inferir propiedades físicas y litológicas del área estudiada a partir de la distribución 3D de velocidades sísmicas y sus variaciones. Sin embargo, la interpretación en general es ambigua porque son varios los factores químicos y mecánicos que controlan las velocidades de ondas sísmicas. En esta memoria se plantea que es posible identificar zonas saturadas con distintos tipos de fluido, arcillas y/o fracturas en sistemas hidrotermales a partir de los valores de velocidades de ondas P y S de una tomografía sísmica 3D utilizando criterios cuantitativos. Al contrastar los modelos obtenidos con información geológica disponible es posible mejorar la comprensión de su dinámica, determinando la geometría y la relación espacial entre las estructuras y los reservorios asociados al sistema volcánico-hidrotermal. En este trabajo se estudia el Complejo Volcánico Tinguiririca (CVT), ubicado en la Zona Volcánica Sur Transicional, en Los Andes de Chile central. Es un sistema volcánico-hidrotermal activo que se compone de tres estratovolcanes además de varios conos de escoria y manifestaciones termales alineados a lo largo de 20 km en dirección NNE, cerca de la traza principal del sistema de fallas El Fierro. Para cuantificar las variaciones de Vp, Vs y el módulo de Poisson (σ) causadas por la presencia de distintos tipos de fluido se utilizó un modelo de inclusiones de fluido con geometría de esferoide oblato. La principal conclusión obtenida es que estudiar las variaciones de dVs en conjunto con los módulos de Poisson obtenidos de una tomografía sísmica en un sistema hidrotermal posibilita distinguir zonas con distintos tipos de fluido (fundido, agua y/o gases), fracturamiento y arcillas. Utilizando estos resultados, se desarrolló un método que permite clasificar los datos y visualizar en 3D la distribución de las zonas antes definidas Al aplicar la metodología propuesta a la tomografía sísmica de Pavez et al. (2016) en el Complejo Volcánico Tinguiririca, se identificaron zonas con distintas propiedades petrofísicas en el área estudiada. Las principales son: en la zona noroeste existe un volumen con alteración hidrotermal y fracturas con arcillas; en el suroeste, se observa un cuerpo con fracturas secas, que representa la zona de daño del sistema de fallas El Fierro. Al oeste, se identificó un posible reservorio magmático compuesto de diques y saturado de volátiles, y al suroeste una zona saturada con agua, cerca de las Termas del Flaco. Esta distribución, tras contrastarse con información geológica y geofísica de otras fuentes, permitió establecer los principales rasgos de la dinámica del sistema volcánico e hidrotermal. Se propone la existencia de fluidos primarios producidos por desgasificación de un reservorio magmático. Éstos ascienden a través de diques y fracturas asociadas a la zona de daño del sistema de fallas El Fierro. Al sur, el sistema tiene una zona dominada por líquidos, y al norte una zona dominada por vapor, con alteración hidrotermal y arcillas bajo los volcanes y las manifestaciones termales solfatáricas. La aplicación del método desarrollado aquí supone una mejora en la interpretación de tomografías sísmicas en sistemas volcánicos e hidrotermales, debido a que permite detectar zonas con fluidos, arcillas, fundido y fracturas utilizando un enfoque cuantitativo, con criterios de clasificación basados en modelos numérico-elásticos.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4

Santos, Alexandre José Araujo dos 1969, Adriano 1969 Peres, Sérgio Vidal Garcia 1974 Oliveira und Universidade Regional de Blumenau Programa de Pós-Graduação em Engenharia Elétrica. „Conversor CC-CC ZVS em ponte completa para aplicação em máquinas de soldagem processo eletrodo revestido /“. reponame:Biblioteca Digital de Teses e Dissertações FURB, 2010. http://www.bc.furb.br/docs/DS/2010/348561_1_1.pdf.

Der volle Inhalt der Quelle
Annotation:
Orientador: Adriano Peres.
Co-orientador: Sérgio Vidal Garcia Oliveira.
Dissertação (mestrado) - Universidade Regional de Blumenau, Centro de Ciências Tecnológicas, Programa de Pós-Graduação em Engenharia Elétrica.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5

Farhat, Ayman. „Calculs théoriques avec le couplage spin orbitales pour les molécules diatomiques YS, YN, ZrS, et ZrN“. Thesis, Lyon 1, 2012. http://www.theses.fr/2012LYO10078/document.

Der volle Inhalt der Quelle
Annotation:
Cette thèse est consacrée à l'étude ab initio des structures électroniques des molécules diatomiques polaires YN, YS, ZrN, et ZrS. Cette étude est motivé par le manque d’informations dans la littérature sur la structure électronique de ces molécules, alors qu’elles ont clairement été identifiées dans le spectre de certaines étoiles. Des calculs théoriques sont ainsi nécessaire puisqu’ils peuvent fournir d'importantes informations quant aux propriétés des états électroniques fondamentaux et excités qui ne sont pas accessibles expérimentalement. Dans ce travail les calculs ab initio ont été effectués par la méthode du champ auto-cohérent de l'espace actif complet (CASSCF), suivie par l'interaction de configuration multiréférence (MRSDCI). La correction de Davidson, notée (MRSDCI+ Q), a ensuite été appliquée pour rendre compte de clusters ou agrégats quadruples non liés. Les calculs ont été effectués selon deux schémas. Dans le premier les effets spin-orbite ont été négligés alors que dans le second les effets spin orbite ont été inclus par la méthode des potentiels de noyau efficaces. Tous les calculs ont été effectués en utilisant le programme de calcul de chimie physique MOLPRO et en tirant parti de l’interface graphique Gabedit. Les courbes d'énergie potentielle ont été construites et des constantes spectroscopiques calculées, ainsi que les moments dipolaires électriques permanent, les champs électriques moléculaires intenses et les structures énergétiques de vibration-rotation. Nous avons détecté dans la molécule ZrS plusieurs niveaux vibrationnels dégénérés ceux-ci peuvent être utilisés pour rechercher les variantes possibles de la constante de structure fine α etdu rapport de masse μ de l’electron par rapport au proton dans trois étoiles de type S, du nomde Rand, les RCas, et χCyg. La comparaison des données expérimentales et théoriques pour la plupart des constantes calculées a montré une bonne précision pour nos prédictions avec une différence relative (en pourcentage) qui varie entre 0,1% et 10%. Ces résultats devraient ainsi mener à des études expérimentales plus poussées pour ces molécules
This dissertation is dedicated to the ab initio study of the electronic structures of the polardiatomic molecules YN, YS, ZrN, and ZrS. The identification of these molecules in the spectraof stars as well as the lack in literature on the electronic structures of these molecules motivatedthe present study. Theoretical calculations are useful in this respect since they can provideimportant data for the properties of the ground and excited electronic states that are not availablefrom experimental means. In the present work the ab initio calculations were performed at thecomplete active space self-consistent field method (CASSCF) followed by multireference singleand double configuration interaction method (MRSDCI). The Davidson correction noted as(MRSDCI+Q) was then invoked in order to account for unlinked quadruple clusters. Thecalculations were performed on two stages in the first spin orbit effects were neglected while inthe second type of calculations spin orbit effects were included by the method of effective corepotentials. All of the calculations were done by using the computational physical chemistryprogram MOLPRO and by taking advantage of the graphical user interface Gabedit. In thepresent work potential energy curves were constructed and spectroscopic constants computed,along with permanent electric dipole moments, internal molecular electric fields, and vibrationalrotationalenergy structures. We detected in the ZrS molecule several degenerate vibrationalenergy levels which can be used to search for possible variations of the fine structure constant αand the electron to proton mass ratio μ in three S-type stars, named Rand, RCas, and χCyg. Acomparison with experimental and theoretical data for most of the calculated constantsdemonstrated a good accuracy for our predictions giving a percentage relative difference thatranged between 0.1% and 10%. Finally, we expect that the results of the present work shouldinvoke further experimental investigations for these molecules
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6

Carvalho, Rafael Takasaki. „Estudo e implementação de controle digital para o conversor ponte completa e comutação suave com modulação por deslocamento de fase (FB-ZVS-PS)“. Florianópolis, SC, 2003. http://repositorio.ufsc.br/xmlui/handle/123456789/86513.

Der volle Inhalt der Quelle
Annotation:
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Engenharia Elétrica
Made available in DSpace on 2012-10-21T07:43:51Z (GMT). No. of bitstreams: 1 220917.pdf: 1077714 bytes, checksum: 47066db00f498f4682f808e120447cd8 (MD5)
O presente trabalho aborda o desenvolvimento e implementação de um sistema de controle digital para o estágio de saída de uma fonte de alimentação para telecomunicações, conversor FB-ZVS-PS, utilizando o processador digital de sinais TMS320LF2407 da Texas Intruments. Este trabalho foi motivado, não só pelas vantagens proporcionadas pelo controle digital, tais como flexibilidade e redução de volume, como também pela necessidade de desenvolvimento nas técnicas de controle para o segmento de retificadores monofásicos. Para a realização deste trabalho foi necessário, além do estudo do estágio de potência e do processador, a elaboração de uma solução digital original de controle "phase-shift" aplicada ao conversor FB-ZVS-PS. Um protótipo utilizando uma placa de circuito impresso de uma fonte comercial de 600 W foi desenvolvido para validação desta técnica. Os resultados obtidos foram extremamente satisfatórios com destaque para o comportamento dinâmico verificado através de reduzidas variações na tensão de saída sob mudanças de carga.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7

Zanatta, Cleber. „Análise teórica e experimental do comportamento de grandes e pequenos sinais e desenvolvimento de um novo modelo dinâmico de pequenos sinais do conversor ZVS-PSM-FB“. Universidade Federal de Santa Maria, 2006. http://repositorio.ufsm.br/handle/1/8436.

Der volle Inhalt der Quelle
Annotation:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
This Master Thesis presents the development of a new dynamic model for the DC-DC Zero-Voltage-Switching Phase-Shift-Modulated Full-Bridge (ZVS-PSM-FB).At first, the ZVSPSM-FB converter is analyzed and the Steady-State equations are derived. Then, using the ac equivalent circuit modeling technique, it is derived two new ZVS-PSM-FB dynamical models, based on step operation of the converter and steady-state converter equations. These two new ZVS-PSM-FB dynamical models with two dynamical models previously presented in the literature are used to perform a frequency response and a transfer-function DC-gain comparison to verify the performance of the dynamical models. Comparison results shows that our second model here derived presents a better performance among other models, keeping the desirable characteristics as simple polynomial ratio transfer-functions, excellent theoretical accuracy of transfer-functions DC-gains, transfer-functions coefficients independency of circuit parasitics components, excepting the primary leakage inductance. Even in this work, it is shown frequency response experimental results of the ZVS-PSM-FB converter, designed following telecommunications rectifiers power supplies standards.
Esta Dissertação de Mestrado apresenta o desenvolvimento de um novo modelo dinâmico para o conversor CC-CC Ponte-Completa Modulado por Deslocamento de Fase e com Comutação em Zero de Tensão (ZVS-PSM-FB). Inicialmente, o conversor ZVS-PSM-FB é analisado, onde são derivadas as equações que definem a operação em regime-permanente do conversor. A seguir, utilizando-se da técnica de modelagem ca média de conversores estáticos, deriva-se dois novos modelos dinâmicos para o conversor, tendo por base as etapas de operação do conversor e as equações de regime-permanente. Feito isso, os dois modelos aqui derivados, são comparados com outros dois modelos dinâmicos já apresentados na literatura para verificar seus desempenhos quanto à resposta em freqüência e resposta do ganho-cc das funções de transferências à variações de carga do conversor, dos modelos dinâmicos. Resultados desta comparação mostram que o segundo modelo aqui derivado é o que apresenta melhor desempenho entre os modelos comparados, mantendo características desejáveis de simples formato de função de transferência como razão de polinômios, precisão teórica excelente para resposta de ganho-cc das funções de transferências e não-dependência dos coeficientes das funções de transferências de parâmetros parasitas do circuito, a menos da indutância de dispersão do transformador. Ainda neste trabalho, são mostrados resultados experimentais da resposta em freqüência do conversor ZVS-PSM-FB, projetado com especificações de normas para retificadores chaveados de alta-freqüência para equipamentos de telecomunicações.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8

Benzid, Khalif. „Etude de l'effet de l'anisotropie magnétique sur la phase dynamique et sur la phase géométrique des bits quantiques de spins électroniques d'ions de métaux de transition Mn2+, Co2+, Fe3+ isolés et des complexes d'ions Fe3+ dans l'oxyde de zinc monocristallin“. Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAE009/document.

Der volle Inhalt der Quelle
Annotation:
Nous avons étudié, par RPE impulsionnelle, la cohérence quantique et des spins électroniques des ions de transition Mn2+, Co2+, Fe3+, et des complexes Fe3+/Cs+ et Fe3+/Na+, tous présents dans le ZnO monocristallin. Nous avons trouvé que l’anisotropie magnétique peut altérer la cohérence de la phase dynamique des qubits des spins électroniques. Nous avons mesuré une faible décohérence pour les spins d’ions Mn2+et Fe3+ dans ZnO, qui ont tous deux une faible anisotropie magnétique uniaxiale, tandis que les ions Co2+ isolés avec une très forte anisotropie magnétique uniaxiale, une décohérence rapide a été mis en évidence. Nous avons trouvé que les spins électroniques des complexes de type Fe3+/Cs+, ayant un tenseur d’anisotropie magnétique plus complexe que la simple anisotropie uniaxiale des ions Fe3+ isolés, possèdent presque le même temps de décohérence. Par la méthode des perturbations, nous avons mis en évidence théoriquement un terme supplémentaire à la phase habituelle de Berry, dû à l’anisotropie magnétique et qui existe dans tout système ayant un spin S>1/2
We studied by pulsed EPR (p-EPR), the quantum coherence of electronic spins qubits of isolated transition metal ions of Mn2+, Co2+, Fe3+ and Fe3+/Cs+ as well as Fe3+/Na+ complexes, all found as traces in mono-crystalline ZnO. Indeed, we experimentally demonstrated that the magnetic anisotropy can alter the coherence of the dynamic phase of electronic spins qubits. We found a small decoherence for Mn2+ and Fe3+, spins having a small uniaxial magnetic anisotropy, and on the contrary, we found a very strong decoherence for Co2+ spins having a very strong uniaxial magnetic anisotropy. We found that the electronic spins of the Fe3+/Cs+ complex, having a more complex tensor magnetic anisotropy compared to the simplest uniaxial one of isolated Fe3+ spins in ZnO, have almost the same coherence time. By the perturbation method, we have found theoretically an additional term to the usual geometric Berry phase, due to the magnetic anisotropy which exists in any system having a spin S>1/2
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9

Al-Hasani, Firas Ali Jawad. „Multiple Constant Multiplication Optimization Using Common Subexpression Elimination and Redundant Numbers“. Thesis, University of Canterbury. Electrical and Computer Engineering, 2014. http://hdl.handle.net/10092/9054.

Der volle Inhalt der Quelle
Annotation:
The multiple constant multiplication (MCM) operation is a fundamental operation in digital signal processing (DSP) and digital image processing (DIP). Examples of the MCM are in finite impulse response (FIR) and infinite impulse response (IIR) filters, matrix multiplication, and transforms. The aim of this work is minimizing the complexity of the MCM operation using common subexpression elimination (CSE) technique and redundant number representations. The CSE technique searches and eliminates common digit patterns (subexpressions) among MCM coefficients. More common subexpressions can be found by representing the MCM coefficients using redundant number representations. A CSE algorithm is proposed that works on a type of redundant numbers called the zero-dominant set (ZDS). The ZDS is an extension over the representations of minimum number of non-zero digits called minimum Hamming weight (MHW). Using the ZDS improves CSE algorithms' performance as compared with using the MHW representations. The disadvantage of using the ZDS is it increases the possibility of overlapping patterns (digit collisions). In this case, one or more digits are shared between a number of patterns. Eliminating a pattern results in losing other patterns because of eliminating the common digits. A pattern preservation algorithm (PPA) is developed to resolve the overlapping patterns in the representations. A tree and graph encoders are proposed to generate a larger space of number representations. The algorithms generate redundant representations of a value for a given digit set, radix, and wordlength. The tree encoder is modified to search for common subexpressions simultaneously with generating of the representation tree. A complexity measure is proposed to compare between the subexpressions at each node. The algorithm terminates generating the rest of the representation tree when it finds subexpressions with maximum sharing. This reduces the search space while minimizes the hardware complexity. A combinatoric model of the MCM problem is proposed in this work. The model is obtained by enumerating all the possible solutions of the MCM that resemble a graph called the demand graph. Arc routing on this graph gives the solutions of the MCM problem. A similar arc routing is found in the capacitated arc routing such as the winter salting problem. Ant colony optimization (ACO) meta-heuristics is proposed to traverse the demand graph. The ACO is simulated on a PC using Python programming language. This is to verify the model correctness and the work of the ACO. A parallel simulation of the ACO is carried out on a multi-core super computer using C++ boost graph library.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10

Al-Saihati, Zainab Ahmed. „C(sp³)–H Activation via Dehydrogenation of Cyclic and Heterocyclic Alkanes by Single-Site Iridium Pincer Ligated Complexes“. Thesis, 2020. https://thesis.library.caltech.edu/13760/22/ZAS-Full_Thesis-FinalVersion.pdf.

Der volle Inhalt der Quelle
Annotation:
The direct dehydroaromatization of C(sp³)–H alkanes may seem conceptually simple but in fact is a challenging transformation. Industrially practiced methods utilize energy intensive processes operating at high pressures and temperatures due to the requirement of such conditions to overcome the endergonic and unreactive nature of alkanes. Chapter 1 briefly discusses early and recent achievements in the field of alkanes dehydrogenation by Ir pincer ligated complexes. While there has been great advancement in the dehydrogenation transformation recently, the direct dehydroaromatization of heterocyclic substrates generating functionalized aromatics is significantly underdeveloped. In Chapter 2, we successfully extended the applicability of Ir catalyzed dehydrogenation systems using pincer ligated complexes on a diverse collection of heterocyclic alkanes with functionalities known to be strongly coordinating and poorly compatible with (PCP)–Ir type catalysts. Carbo- and heteroarenes containing oxygen and nitrogen can be synthesized in moderate to excellent yields up to 99%, and the reaction tolerates functional groups such as bromides and fluorides. In Chapter 3, we demonstrate the efficient disproportionation of cycloalkenes to the corresponding arenes and cycloalkanes with up to 100% conversion, which has been a long-standing challenge in the field of pincer-ligated Ir-catalyzed dehydrogenation studies. For example, 1-cyclohexene was disproportionated to benzene and cyclohexane and 1-4-vinyl-1-cyclohexene was disproportionated to ethylbenzene and ethylcyclohexane. We also demonstrate that a key mechanistic feature of our system is a lack of catalyst inhibition by arenes. In addition, our method is advantageous to previous reports as no sacrificial olefin is used, thereby circumventing the requirement for exogeneous hydrogen acceptors. Our studies presented in Chapter 2 and Chapter 3 provides a novel and a complementary pathway to access important aromatic building blocks and may help create alternative routes to complex molecules via late stage dehydrogenation without the need of stoichiometric oxidants.
APA, Harvard, Vancouver, ISO und andere Zitierweisen

Buchteile zum Thema "Complexe ZZS"

1

Hsieh, Fei-Hu, Feng-Shao Liu und Hui-Chang Hsieh. „Nonlinear Phenomena and Resonant Parametric Perturbation Control in QR-ZCS Buck DC-DC Converters“. In Chaos and Complex Systems, 105–9. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-33914-1_13.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2

Sugaki, Asahiko, Kenichiro Hayashi und Arashi Kitakaze. „Sulfide Complexes Dissolved in Hydrothermal Solutions—Solubility Studies on Ag2S and ZnS“. In Dynamic Processes of Material Transport and Transformation in the Earth’s Interior, 97–112. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-011-3314-2_7.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3

Okamoto, K., T. Yoshimi und S. Miura. „The TbOF Complex Center and the Brightness of ZnS Thin-Film Green Electroluminescent Devices“. In Springer Proceedings in Physics, 139–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-93430-8_28.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4

Sharma, Ranjana, Bhoop Singh, Vijay Kumar, Y. C. Goswami, Rajeev Singh und D. Kumar. „Microwave Assisted Synthesis of Highly Luminescent ZnS Nanostructures Using Zinc Dithiocarbazic Complex Chemical Route“. In Springer Proceedings in Physics, 575–80. New Delhi: Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2367-2_71.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5

Schibli, Hermann S. „The Battle Against Ophioneus“. In Pherekydes Of Syros, 78–103. Oxford University PressOxford, 1990. http://dx.doi.org/10.1093/oso/9780198143833.003.0004.

Der volle Inhalt der Quelle
Annotation:
Abstract In the preceding two chapters of our study we have seen how each of the three pre-existing deities, Chronos, Zas, and Chthonie, contributes to the creation of the universe and its gods. From the primary elements of the seed produced by Time, gods are born who invest their birthplaces, the 1wxo{, with reality as cosmic regions. This event we have termed the first creation, the coming-into-being of the larger cosmos and its divine inhabitants (the 1revTeµ,vxos generation). Zas next arranges to complete the creative process begun by Chronos. As a cosmic craftsman he fashions a robe embroidered with earth and the surrounding ocean and bestows it as a wedding gift upon Chthonie. To effect his union with Chthonie he becomes identified with cosmogonic Eros. The earth-principle, Chthonie, is now transformed into the actual Earth, Ge; the image of the robe upon the winged oak allows the fecund Earth to be pictured as part of a great, life-bearing tree, supporting itself in the larger, surrounding cosmos. The wedding of Zas and Chthonie-Ge not only entails the physical creation of the world but, as a lepos yaµ,os and the first marriage ever, it also becomes a prototype for the rightful customs and institutions of gods and men.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6

Manning, Brandon. „“I Felt Like I Was Part of the Troop”: Satire, Feminist Narratology, and Community“. In Post-Soul Satire. University Press of Mississippi, 2014. http://dx.doi.org/10.14325/mississippi/9781617039973.003.0009.

Der volle Inhalt der Quelle
Annotation:
This chapter argues for the need of developing a “black feminist narratology” in order to understand the complex role of the racialized narrator in Post-Soul fiction. Building off of the work of feminist narratology, this chapter applies the black feminist narratology – with its dual focus on race and gender – to ZZ Packer’s recent story “Brownies.” Packer’s satire works to emphasize the need for marginalized peoples to foster positive approaches to community identification, while also suggesting the need to develop such communal identification between reader and writer.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7

Peterson, Kristin M., und Nabil Echchaibi. „Mipsterz“. In Religion and Popular Culture in America, Third Edition. University of California Press, 2017. http://dx.doi.org/10.1525/california/9780520291447.003.0008.

Der volle Inhalt der Quelle
Annotation:
In a two-and-a-half-minute-long video released on YouTube in November 2013, a series of short clips featured a group of self-confident young Muslim women hanging out in various urban landscapes in the United States, as Jay-Z's song “Somewhere in America” played in the background. The viral video, entitled “Somewhere in America #MIPSTERZ,” quickly became controversial, amid heated accusations that a “misguided” group of hipster Muslim women had gone “too far” in reappropriating modesty and staking out an edgy religious and gendered identity. This chapter focuses on how the women behind the Mipsterz video engaged with visuals, urban styles, fashion, fun, and other forms of popular culture to liberate themselves from a relentless framing that portrays them as either covered and oppressed by Islam or uncovered and sexually liberated by Western secular culture. It argues that popular culture and religion intersect in productive ways, breaking free of the discourse of victimization and exoticism and helping us understand the complex, multiple frames of reference that define American Muslims' everyday lives.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8

Dove, Martin T. „Atomic bonding in crystals“. In Structure and Dynamics: An Atomic View of Materials, 91–116. Oxford University PressOxford, 2003. http://dx.doi.org/10.1093/oso/9780198506775.003.0005.

Der volle Inhalt der Quelle
Annotation:
Abstract The diversity of crystal structures is due to the factors associated with bonding. We have met four different types of crystal structures for materials containing equal numbers of two types of atoms (NaCl, CsCl, cubic and hexagonal ZnS). There is a plethora of structures for materials of the general form AB2. We have met the cubic structure of CaF2, and we have noted that SiO2 can be found in many different structures. The high-pressure phase of SiO2 has the rutile structure of TiO2, and this compound exists in other different crystal structures. Part of the rationalization for the different structure types comes from the relative sizes of the atoms. However, this only tells part of the story. It is known that under different conditions of temperature or pressure the same substance can exist in different structures, in which case relative sizes of atoms are not the overriding factor. Bonding is more complex an issue than the simple packing of spheres into the most efficient arrangements, although some aspects of atomic bonding may reduce to this. In this chapter we explore some of the issues associated with how different aspects of binding lead to the stabilities of crystal structures. We have to start from the study of equilibrium thermodynamics, since this provides a ‘broad brush’ understanding of crystal stability. The details of bonding, which we will then go on to discuss, link the macroscopic general principles to the specific interatomic interactions.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9

Schweitzer, George K., und Lester L. Pesterfield. „The Zn Group“. In The Aqueous Chemistry of the Elements. Oxford University Press, 2010. http://dx.doi.org/10.1093/oso/9780195393354.003.0019.

Der volle Inhalt der Quelle
Annotation:
The elements of this group (zinc Zn, cadmium Cd, mercury Hg) all exhibit a II oxidation state in aqueous systems, and Hg also shows a I oxidation state as indicated by the unusual cation Hg2+2. None of the elements shows oxidation states greater than II, which indicates that the d electrons are not involved. Within the group Zn and Cd resemble each other more closely than Cd and Hg. This is especially evident in the nobility of Hg (E˚ positive for Zn and Cd, negative for Hg), the lack of an Hg hydroxide, the thermal instability of HgO, and the greater stabilities of many Hg complexes as compared to those of Zn and Cd. a. E–pH diagram. Figure 17.1 shows the E–pH diagram for Zn at a 10−1.0 M concentration for soluble species except H+ (and OH−). No complexing agent other than HOH and OH− is assumed to be present. The Zn+2 ion is more properly expressed as Zn(HOH)6+2, and the hydroxo complexes probably have enough HOH attached to realize a coordination number of 6. In aqueous solution, Zn acts only in the oxidation states of 0 and II. The legend of the figure shows equations for the lines separating the species. b. Discovery, occurrence, and extraction. Brass, an alloy of Cu and Zn, dates back to pre-historic times. Indications are that it was produced by heating calamine (ZnCO3) with Cu and C. Pure Zn was being produced in India and China during the thirteenth and fourteenth centuries, and by about 1600, was being imported by Europe. Even before this, some reports indicate that zinc was recognized in Europe, but it was generally believed that it was a mixture of metals. In 1746, Andreas Marggraf published a book describing the production of Zn from its mineral calamine ZnCO3 (now also known as smithsonite), and soon it was recognized by Lavoisier as an element. The name zinc derives from the German zink, which means sharp point, a name designating its appearance when it deposits in a smelter. The major ores of Zn are zinc blende ZnS (also known as sphalerite) and calamine ZnCO3.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10

Entwistle, Ian D. „”Carpet of Chaos“: Mapping the Bilateral Symmetric zz + c in the Complex z and c Planes“. In The Pattern Book: Fractals, Art, and Nature, 147–50. WORLD SCIENTIFIC, 1995. http://dx.doi.org/10.1142/9789812832061_0061.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen

Konferenzberichte zum Thema "Complexe ZZS"

1

Zhang, Yunong, Dongsheng Guo und Fen Li. „Different complex ZFs leading to different complex ZNN models for time-varying complex matrix inversion“. In 2013 10th IEEE International Conference on Control and Automation (ICCA). IEEE, 2013. http://dx.doi.org/10.1109/icca.2013.6564858.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2

Chen, Xin-huai, Yu-fei Zhou, Jun-ning Chen und Li-li Wang. „Study on Complex Behavior in Phase-Shifting Full-Bridge ZVS Converter“. In APCCAS 2006 - 2006 IEEE Asia Pacific Conference on Circuits and Systems. IEEE, 2006. http://dx.doi.org/10.1109/apccas.2006.342277.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3

Drapalyuk, M. V., L. D. Bukhtoyarov und N. Yu Yurev. „DEVELOPMENT IN CAD OF A THREE-DIMENSIONAL MODEL OF A FOREST PLANTING MACHINES“. In Modern machines, equipment and IT solutions for industrial complex: theory and practice. Voronezh State University of Forestry and Technologies named after G.F. Morozov, Voronezh, Russia, 2021. http://dx.doi.org/10.34220/mmeitsic2021_56-61.

Der volle Inhalt der Quelle
Annotation:
Currently, the reforestation process has a number of disadvantages, such as the need to use manual labor during the distribution and planting of seedlings; mechanisms for planting seedlings are often equipped with tractors as traction means. The creation of furrows and the preparation of the soil immediately before planting affects the energy consumption of the implements’ drives. At the moment, the inefficiency of planting work is high, since the planting of seedlings with a closed root system occurs in conjunction with a plow. All these factors, when calculated for a long-term period, lead to greater energy consumption when carrying out this type of work. This article discusses approaches to the mechanization of the planting process. Using the experience of planting seedlings with a closed root system (CCS) manually and analyzing the methods of mechanization of planting, it is possible to obtain maximum efficiency when carrying out this type of work. Based on the material studied, a prototype of a planting device suitable for the technology of discrete planting of seedlings with ZKS was selected. Solid modeling of the working body in the Solidworks computer-aided design system has been carried out. When designing the model, the possibility of its production using additive technology using the FDM printing method was envisaged.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4

Annas, Kirill I., Yuliya A. Gromova, Anna O. Orlova, Vladimir G. Maslov, Anatoly V. Fedorov und Alexander V. Baranov. „FRET efficiency in surface complexes of CdSe/ZnS quantum dots with azo-dyes“. In SPIE Photonics Europe, herausgegeben von David L. Andrews, Jean-Michel Nunzi und Andreas Ostendorf. SPIE, 2016. http://dx.doi.org/10.1117/12.2227883.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5

Martynenko, Irina, Vera Kuznetsova, Anna Orlova, Pavel Kanaev, Yulia Gromova, Vladimir Maslov, Alex Baranov und Anatoly Fedorov. „ZnSe/ZnS quantum dots - photosensitizer complexes: optical properties and cancer cell photodynamic destruction effect“. In SPIE Photonics Europe, herausgegeben von David L. Andrews, Jean-Michel Nunzi und Andreas Ostendorf. SPIE, 2014. http://dx.doi.org/10.1117/12.2052528.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6

Valanciunaite, J., A. Skripka, G. Streckyte und R. Rotomskis. „Complex of water-soluble CdSe/ZnS quantum dots and chlorin e 6 : interaction and FRET“. In Laser Applications in Life Sciences 2010, herausgegeben von Matti Kinnunen und Risto Myllylä. SPIE, 2010. http://dx.doi.org/10.1117/12.871524.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7

ZENKEVICH, E. I., A. M. SHULGA, T. BLAUDECK und C. VON BORCZYSKOWSKI. „STRUCTURE AND EXCITED STATE PROPERTIES OF CdSe/ZnS QUANTUM DOT–PORPHYRIN COMPLEXES FORMED BY SUPRAMOLECULAR DESIGN“. In Proceedings of the International Conference on Nanomeeting 2007. WORLD SCIENTIFIC, 2007. http://dx.doi.org/10.1142/9789812770950_0029.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8

Kuznetsova, Vera, Anna Orlova, Irina Martynenko, Evgeny Kundelev, Vladimir Maslov, Anatoly Fedorov, Alexander Baranov und Yurii Gun'ko. „Complexes of photosensitizer and CdSe/ZnS quantum dots passivated with BSA: optical properties and intracomplex energy transfer“. In SPIE Photonics Europe, herausgegeben von Jürgen Popp, Valery V. Tuchin, Dennis L. Matthews und Francesco S. Pavone. SPIE, 2016. http://dx.doi.org/10.1117/12.2227773.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9

Lyu, Jewon, Jinhee Han und Sha'Mira Covington. „A Preliminary Study: CSR Advertising, Mere Exposure, and Generation Z’s Social Activism in the Fashion-Industrial Complex“. In Pivoting for the Pandemic. Iowa State University Digital Press, 2020. http://dx.doi.org/10.31274/itaa.12144.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10

Toniolo, Francesco, Paolo Mattavelli und Giorgio Spiazzi. „Design Criteria and Modulation Strategies for Complete ZVS Operation of the Bidirectional Interleaved Boost Converter with Coupled Inductors“. In 2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL). IEEE, 2019. http://dx.doi.org/10.1109/compel.2019.8769683.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen

Berichte der Organisationen zum Thema "Complexe ZZS"

1

Hulata, Gideon, Thomas D. Kocher und Micha Ron. Elucidating the molecular pathway of sex determination in cultured Tilapias and use of genetic markers for creating monosex populations. United States Department of Agriculture, Januar 2007. http://dx.doi.org/10.32747/2007.7695855.bard.

Der volle Inhalt der Quelle
Annotation:
The objectives of this project were to: 1) Identify genetic markers linked to sex-determining genes in various experimental and commercial stocks of O. niloticusand O. aureus, as well as red tilapias; 2) Develop additional markers tightly linked to these sex determiners, and develop practical, non-destructive genetic tests for identifying genotypic sex in young tilapia; A third aim, to map sex modifier loci, was removed during budget negotiations at the start of the project. Background to the topic. A major obstacle to profitable farming of tilapia is the tendency of females to reproduce at a small size during the production cycle, diverting feed and other resources to a large population of small, unmarketable fish. Several approaches for producing all-male fingerlings have been tried, including interspecific hybridization, hormonal masculinization, and the use of YY-supermale broodstock. Each method has disadvantages that could be overcome with a better understanding of the genetic basis of sex determination in tilapia. The lack of sex-linked markers has been a major impediment in research and development of efficient monosex populations for tilapia culture. Major conclusions, solutions, achievements. We identified DNA markers linked to sex determining genes in six closely related species of tilapiine fishes. The mode of sex determination differed among species. In Oreochromis karongaeand Tilapia mariaethe sex-determining locus is on linkage group (LG) 3 and the female is heterogametic (WZ-ZZ system). In O. niloticusand T. zilliithe sex-determining locus is on LG1 and the male is heterogametic (XX-XY system). We have nearly identified the series of BAC clones that completely span the region. A more complex pattern was observed in O. aureus and O. mossambicus, in which markers on both LG1 and LG3 were associated with sex. We found evidence for sex-linked lethal effects on LG1, as well as interactions between loci in the two linkage groups. Comparison of genetic and physical maps demonstrated a broad region of recombination suppression harboring the sex-determining locus on LG3. We also mapped 29 genes that are considered putative regulators of sex determination. Amhand Dmrta2 mapped to separate QTL for sex determination on LG23. The other 27 genes mapped to various linkage groups, but none of them mapped to QTL for sex determination, so they were excluded as candidates for sex determination in these tilapia species. Implications, both scientific and agricultural. Phylogenetic analysis suggests that at least two transitions in the mode of sex determination have occurred in the evolution of tilapia species. This variation makes tilapias an excellent model system for studying the evolution of sex chromosomes in vertebrates. The genetic markers we have identified on LG1 in O. niloticusaccurately diagnose the phenotypic sex and are being used to develop monosex populations of tilapia, and eliminate the tedious steps of progeny testing to verify the genetic sex of broodstock animals.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Die Auswahlen zum Thema "Complexe ZZS" für konkrete Quellenarten können Sie auch interessieren:
Zeitschriftenartikel
Wir bieten Rabatte auf alle Premium-Pläne für Autoren, deren Werke in thematische Literatursammlungen aufgenommen wurden. Kontaktieren Sie uns, um einen einzigartigen Promo-Code zu erhalten!

Zur Bibliographie