cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Investigations of high harmonic generation in laser induced ablation plumes
Creators: name: Abdelrahman, Zara
Publisher: name: Imperial College London
Year: 2015

description: High harmonic generation (HHG) in gases provides a compact and versatile source of coherent light in the extreme ultraviolet and soft X-ray range. It is also used to produce attosecond pulses. This thesis investigates ablation plumes as an alternative medium to gases for HHG. Of particular interest are the resonantly enhanced harmonics seen from certain plumes. Resonant HHG mechanisms and emission were investigated on the microscopic and macroscopic scale. Experiments were carried out in zinc and indium plumes, using few-cycle femtosecond HHG driving pulses. These included observing the effects of varying: carrier envelope phase (CEP), pulse duration, chirp, bandwidth and polarisation of the driving field. These results were compared to theoretical simulations, using the Four Step Model. The experimental results showed strong resonant harmonics in both zinc, at 19.1 eV and indium, at 19.7 eV, 20.5 eV and 22.3 eV. These were in good agreement with known autoionising-ground state transitions thought to cause the enhancements. The harmonics were dependent on the driving beam ellipticity, showing free election mechanisms are involved. They were found to be weakly CEP dependent, but sensitive to the peak intensity of the driving IR field. Using Young’s slit diffraction patterns, direct measurements of the spatial coherent properties were made. The fringe visibility, V , measured was high, proving good spatial coherence with: VZn = 0.74 and VIn = 0.66. These were better than that measured from argon gas, VAr = 0.47, under similar experimental conditions. The first attempts to use ablation plumes to produce gas phase targets from a solid were carried out, using uracil and thymine targets. Harmonics were seen in uracil however, not from thymine. Time of flight and debris analysis of the plume attributed this to fragmentation of the thymine molecules.
title: Entwurf einer Delay-Locked Loop für die Nutzung als Time-to- Digital Converter in einer Time-of-Flight Anwendung in 350nm CMOS Technologie
Creators: name: Lippold, Markus
Publisher: name: Fachhochschule Dortmund
Year: 2021
Subjects: subject: 621.3 Elektrotechnik, Elektronik

description: Im Rahmen dieser Masterthesis wird eine Delay-Locked Loop von einem idealen Aufbau über Verilog-A Modellen bis hin zur realen Umsetzung entworfen. Diese Delay-Locked Loop (DLL) wird für die Nutzung in einem Time-to-Digital Converter (TDC) mit Local-Passiv-Interpolation, entwickelt. Mit Hilfe des TDC soll eine Verzögerungszeit bei einer Time-of-Flight Anwendung ermittelt werden. Hauptbestandteil dieser Arbeit ist es, eine Charge Pump zu implementieren, welche eine geringe Auswirkung auf die Phasenverschiebung der Regelschleife aufgrund von parasitären Eigenschaften im Schaltmoment aufweist. Zudem wird für die Stromregelung innerhalb der Charge Pump ein präziser Transkonduktanzverstärker (OTA) mit einem hohen Eingangsspannungsbereich implementiert. Für die Entkopplung der Verzögerungskette als Last von der Filterspannung wird ein Low-Dropout Spannungsregler (LDO) entwickelt. Im Verlauf der Arbeit hat sich gezeigt, dass eine Charge Pump, aufgebaut mit einem differentiellen Stromzweig, aufgrund des konstant fließenden Stroms die geringsten parasitären Einflüsse aufweist. Innerhalb dieser Charge Pump wird ein gefalteter Transkonduktanzverstärker als Spannungsfolger genutzt, um das Potential in den Zweigen der differentiellen Stufe aneinander anzugleichen und somit die Einflüsse im Schaltmoment zu verringern. Zusätzlich erfolgt über diesen Verstärker eine exakte Stromanpassung der UP- und DOWN-Ströme. Für die Umsetzung der Verzögerungskette wird das Rauschverhalten verschiedener CMOSInverter bezüglich Phasenrauschen und Jitter simuliert. Aufgrund dieser Simulationen ist der differentielle Inverter mit NMOS-Kreuzkopplung für die Umsetzung der Delay-Line ausgewählt worden. Die real aufgebaute Delay-Locked Loop wird nach der Spezifikation für Automobilanwendungen in einem Temperaturbereich von -50°C bis 120°C simuliert. Zusätzlich werden globale und lokale prozessbedingte Variation berücksichtigt. Bei dieser Simulation stellt sich eine maximale Phasenverschiebung zur Referenzperiodendauer von 218 ps ein. Dies entspricht bei einer Referenzfrequenz von 25 MHz einer Abweichung von ca. 0,5 % und führt zu einem Messfehler der Delay-Locked Loop von 3 cm. Somit könnte im schlechtesten Fall ein Objekt von der ToF-Kamera mit einem Fehler von 3 cm detektiert werden.
A crucial role for IL-21 in controlling CD4 T cell responses to respiratory viral infection
Creators: name: Dodd, Jonathan Soames
Publisher: name: Imperial College London
Year: 2014

description: Respiratory syncytial virus (RSV) is a pneumovirus that infects almost all children by the age of three, and causes an intense pulmonary infiltrate termed bronchiolitis. The tissue damage caused by this immune response significantly reduces lung function such that hospitalisation and mechanical ventilation may be required. There is no licensed vaccine against RSV, partly because the exact immunological mechanism responsible for bronchiolitis remains unclear, though CD4 and CD8 T cells are known to be essential. Interleukin-21 (IL-21) is a recently identified member of the γc chain cytokine family, important in autoimmunity, cancer, and chronic viral infections. Produced mainly by CD4 T cells, IL-21 affects the responses of several cell types but is particularly important for enhancing activation and survival of CD8 T cells. As such, it was hypothesised that IL-21 could be targeted therapeutically to reduce anti-RSV CD8 T cell responses and reduce the incidence of bronchiolitis. This hypothesis was tested in three models of RSV disease. Here, it is shown that IL-21 is critical for control of CD4 T cell responses rather than CD8. IL-21 depletion increases T cell responses, including cell recruitment and cytokine production, thereby increasing disease. Conversely, it reduced regulatory T cell influx and antibody production. In contrast, IL-21 over-expression ablates the anti-viral T cell response and RSV disease without affecting regulatory T cells. Also, early chemokine production by infected epithelial cells is inhibited and that DC migration is affected, possibly reducing T cell activation and influx. Antibody 4 production is also reduced, and consequently lymphocyte memory development is blocked resulting in no protection against viral rechallenge. Therefore, IL-21 plays a crucial role in the development of anti-viral pulmonary immunity and should be considered as part of a therapy to alleviate primary RSV disease in conjunction with other factors to boost anti-viral memory.
Control of the Two-Electron Exchange Interaction in a Nanowire Double Quantum Dot
Creators: name: Liu, Zhi-Hai
name: Entin-Wohlman, O.
name: Aharony, A.
name: You, J. Q.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The two-electron exchange coupling in a nanowire double quantum dot (DQD) is shown to possess Moriya's anisotropic superexchange interaction under the influence of both the Rashba and Dresselhaus spin-orbit couplings (SOCs) and a Zeeman field. We reveal the controllability of the anisotropic exchange interaction via tuning the SOC and the direction of the external magnetic field. The exchange interaction can be transformed into an isotropic Heisenberg interaction, but the uniform magnetic field becomes an effective inhomogeneous field whose measurable inhomogeneity reflects the SOC strength. Moreover, the presence of the effective inhomogeneous field gives rise to an energy-level anticrossing in the low-energy spectrum of the DQD. By fitting the analytical expression for the energy gap to the experimental spectroscopic detections [S. Nadj-Perge et al., Phys. Rev. Lett. 108, 166801 (2012)], we obtain the complete features of the SOC in an InSb nanowire DQD.
description: 7 pages, 4 figures plus supplemental material
More Than a Feeling: Learning to Grasp and Regrasp using Vision and Touch
Creators: name: Calandra, Roberto
name: Owens, Andrew
name: Jayaraman, Dinesh
name: Lin, Justin
name: Yuan, Wenzhen
name: Malik, Jitendra
name: Adelson, Edward H.
name: Levine, Sergey
Publisher: name: arXiv
Year: 2018
Subjects: subject: Robotics (cs.RO)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: For humans, the process of grasping an object relies heavily on rich tactile feedback. Most recent robotic grasping work, however, has been based only on visual input, and thus cannot easily benefit from feedback after initiating contact. In this paper, we investigate how a robot can learn to use tactile information to iteratively and efficiently adjust its grasp. To this end, we propose an end-to-end action-conditional model that learns regrasping policies from raw visuo-tactile data. This model -- a deep, multimodal convolutional network -- predicts the outcome of a candidate grasp adjustment, and then executes a grasp by iteratively selecting the most promising actions. Our approach requires neither calibration of the tactile sensors, nor any analytical modeling of contact forces, thus reducing the engineering effort required to obtain efficient grasping policies. We train our model with data from about 6,450 grasping trials on a two-finger gripper equipped with GelSight high-resolution tactile sensors on each finger. Across extensive experiments, our approach outperforms a variety of baselines at (i) estimating grasp adjustment outcomes, (ii) selecting efficient grasp adjustments for quick grasping, and (iii) reducing the amount of force applied at the fingers, while maintaining competitive performance. Finally, we study the choices made by our model and show that it has successfully acquired useful and interpretable grasping behaviors.
description: 8 pages. Published on IEEE Robotics and Automation Letters (RAL). Website: https://sites.google.com/view/more-than-a-feeling
Reminiscences of Han-hun Li : oral history, 1962
Publisher: name: Columbia University
Year: 2020
Subjects: Governors--China
Sino-Japanese War, 1937-1945

description: Part I: Childhood, military education, military experience before the Northern Expedition (1928-30), pacification of two areas in Kwangtung, War of Resistance against Japanese Aggression (1937-38), governor of Kwangtung Province, 1939-45; Part II, experience as wartime governor: organization of provincial government with administrative organs; Part III: a select translation of his detailed diary for 1949, amplified by explanations and opinions
title: Entwicklung einer Transimpedanzverstärkerschaltung zur Detektion des Einschaltzeitpunktes der Laserdiode einer Time-of-Flight Kamera
Creators: name: Koray, Cetin
Publisher: name: Fachhochschule Dortmund
Year: 2021
Subjects: subject: 621.3 Elektrotechnik, Elektronik

description: Inhalt dieser Arbeit ist der Entwurf und der Aufbau eines Photodiodenverstärkers. Mithilfe der erstellten Platine kann die Detektion von Laserpulsen einer ToF-Ka-mera erfolgen. Dazu werden spezifische Bauteile ausgesucht und mit der Software Cadence simuliert. Anschließend wird die Platine mit der Software Altium Desig-ner entworfen. Als letztes wird die Schaltung auf ihre Funktionalität überprüft und im Zusammenspiel mit der Kamera getestet.
Scavenging arsenate from contaminated water using solid supported chemical receptors
Creators: name: Moffat, Christopher
Publisher: name: Imperial College London
Year: 2014

description: Arsenic contamination of drinking water is problematic across the globe, with a serious effect on human health. The WHO guideline of 10 μg L-1 maximum concentration for arsenic in drinking water is regularly exceeded in developing countries in South East Asia, and many other countries across the world including the USA and Japan. Aqueous arsenic is commonly found in two oxidation states, AsV (arsenate) or AsIII (arsenite). Arsenate exists in water as a tetrahedral oxyanion, analogous to phosphate. Recently there has been great interest in developing new materials than can remove arsenate from drinking water. Specifically, chelating resins loaded with transition metal cations have shown potential for use in arsenate remediation. This Thesis describes the synthesis of two series of metal complexes that were evaluated as arsenate receptors and subsequent development of one of these receptors into a novel arsenate adsorbent. Firstly, a range of bridging di-metallic complexes was synthesised. The aqueous phase oxyanion binding properties of these receptors were investigated by indicator displacement assays, isothermal titration calorimetry and in the solid phase by X-ray crystallography. Metallo-receptors containing boronic acid binding sites were also synthesised and arsenate binding was studied by isothermal titration calorimetry, UV-vis spectroscopy and NMR spectroscopy. An arsenate sorbent was prepared by immobilising a phenolate di-zinc(II) complex onto a polystyrene resin. The novel material thus obtained was studied as an arsenate adsorbent in a range of batch adsorption experiments. The effects of solution pH and presence of competing ions on arsenate uptake were investigated and the Langmuir adsorption capacity was obtained. These results were compared with those of a commercially used arsenic adsorbent, Bayoxide E33. Finally the novel adsorbent was packed into a glass column and its ability to adsorb arsenate in flow through experiments was studied.
Five-particle contributions to the inclusive rare $\bar B \to X_{s(d)} \, \ell^+\ell^-$ decays
Creators: name: Huber, Tobias
name: Qin, Qin
name: Vos, K. Keri
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate tree-level contributions to the inclusive rare $\bar B \to X_{s(d)} \, \ell^+\ell^-$ decays. At the partonic level they stem from the five-particle process $b \to s(d) \, q \bar q \, \ell^+\ell^-$, with $q \in \{u,d,s\}$. While for $b \to d$ transitions such five-body final states contribute at the same order in the Wolfenstein expansion compared to the three-body partonic decay, they are CKM suppressed in $b \to s$ decays. In the perturbative expansion, we include all leading-order contributions, as well as partial next-to-leading order QCD and QED effects. In the case of the differential branching ratio, we present all results completely analytically in terms of polylogarithmic functions of at most weight three. We also consider the differential forward-backward asymmetry, where all except one interference could be obtained analytically. From a phenomenological point of view the newly calculated contributions are at the percent level or below.
description: 23 pages, 3 figures (Matches published version)
title: Entwurf und Layout einer Treiberstufe für die Verwen-dung in einem synchronen Abwärtswandler
Creators: name: Choukri, Yassine
Publisher: name: Fachhochschule Dortmund
Year: 2021
Subjects: subject: 621.3 Elektrotechnik, Elektronik

description: In dieser Arbeit wird eine Treiberstufe für die Verwendung in einem synchronen Abwärts-wandler entwickelt. Der Abwärtswandler hat das Ziel, eine Eingangsspannung von 3,3 V in eine Ausgangs-spannung von 1,2 V umzuwandeln. Der Schalter der Treiberstufe wird in einer 180nm CMOS Technologie entworfen und durch die Firma UMC (United Microelectronics Cor-poration) produziert. Der entwickelte Schalter der Treiberstufe wird in einem synchronen Abwärtswandlers integriert und wird für alle Funktionen verifiziert. Für den Entwurf und das Layout der Schaltung des Treibers wird die Software "Virtuoso 6.1-64b" des Herstellers "Cadence Design Systems" verwendet. Diese Software bietet Simulationsmodelle für alle im Abwärtswandler verwendeten Bauteile.
Sertularia Linnaeus, 1758, gen. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Hydrozoa
Leptothecata
Sertulariidae
Sertularia

description: Sertularia [gen. nov.]
Flores Hydrae. Ellis cor. t. 5. f. A; t. 9. f. C; t. 10. f. A; t. 20. f. C.
Stirps radicata, fibrosa, nuda, articulata; articulis unifloris.
* Ovariis distinctis & exsertis instructae.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 807, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Towards a Truly Wearable, Non-Invasive Respiration Monitoring System
Creators: name: Chen, Guangwei
Publisher: name: Imperial College London
Year: 2015

description: Non-intrusive medical-grade accuracy respiratory monitoring is one of the two unresolved challenges in design of wearable vital signs monitoring system, besides blood pressure monitoring. The challenge of respiratory monitoring includes automatic breath detection, respiratory phase classification, and extraction of other respiratory related parameters. The main problem is that the sensed respiratory physiological signals could be heavily corrupted by artefacts and interference from non-relevant sources such as movement and other unwanted physiological signals collected at the same time. This thesis proposes a novel system which can detect respiratory activity from tracheal sounds recorded by a miniature wearable sensor with limited power budget, and can be tailored for variety of clinical scenarios by combining novel state-of-the-art techniques at both hardware and software level. The respiratory monitoring system presented in this thesis consists of two parts: one is a hardware platform for sensing breath sounds and the other is an algorithm for respiratory activity analysis. The low power sensor platform has been optimised for breath sound data acquisition by a combination of: a custom engineered acoustic chamber and a MEMS microphone; and optional power efficient data compression techniques which include the use of novel fixed length adaptive sample size (FLASS) frames optimised for Bluetooth® Smart wireless transmission protocol. The respiratory activity algorithm is based on 3-stage backward adaptive approach, using previous detected respiration’s parameters to fine tune the system and then balancing the system’s sensitivity and specificity in various ways to suit the need of different applications. These include sleep apnoea diagnosis, sudden unexpected death prevention in both epilepsy and babies, early warning scoring in hospitals and management of chronic conditions such as chronic obstructive pulmonary disease and asthma. A clinical trial focused on sleep apnoea detection was conducted in the National Hospital for Neurology and Neurosurgery, London, UK, in order to verify the respiratory monitoring system. Questionnaire results show that all participants scored the novel wearable respiratory sensor in the range 4 to 5, where 5 represents the best possible scoring in a number of attributes related to wearability. Experimental results show the proposed automatic apnoea and hypopnoea detection algorithm has 88.6% sensitivity and 99.6% specificity when comparing its performance with a specialist clinician considered as a gold standard. In comparison a state-of-the-art automatic ambulatory sleep diagnosis system has 14.3% sensitivity and 99.3% specificity.
title: Messtechnische Validierung eines Shunt-Low-Dropout- Spannungsreglers zur strombasierten Versorgung der seriell verschalteten Pixel-Detektormodule des ATLAS- und CMS-Experiments am High-Luminosity Large Hadron Collider
Creators: name: Zorn, Jendrik
Publisher: name: Fachhochschule Dortmund
Year: 2021
Subjects: subject: 621.3 Elektrotechnik, Elektronik

description: In dieser Masterthesis wird ein Shunt-Low-Dropout-Spannungsregler messtechnisch überprüft. Dieser Regler entsteht in Kooperation zwischen der Fachhochschule Dortmund und dem Kernforschungszentrum CERN für die Nutzung in Experimenten am LHC-Teilchenbeschleuniger in Genf. Der Fokus liegt auf der Messung der ersten beiden entwickelten Testchips des Projektes RD53B, inklusive der technischen Grundlagen, des genutzten Messaufbaus und der Validierung. Diese Thesis soll den Grundstein für Messungen an den folgenden Chipgenerationen im Rahmen des Projektes legen.
Fidelity benchmarks for two-qubit gates in silicon
Creators: name: Huang, W.
name: Yang, C. H.
name: Chan, K. W.
name: Tanttu, T.
name: Hensen, B.
name: Leon, R. C. C.
name: Fogarty, M. A.
name: Hwang, J. C. C.
name: Hudson, F. E.
name: Itoh, K. M.
name: Morello, A.
name: Laucht, A.
name: Dzurak, A. S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Universal quantum computation will require qubit technology based on a scalable platform, together with quantum error correction protocols that place strict limits on the maximum infidelities for one- and two-qubit gate operations. While a variety of qubit systems have shown high fidelities at the one-qubit level, superconductor technologies have been the only solid-state qubits manufactured via standard lithographic techniques which have demonstrated two-qubit fidelities near the fault-tolerant threshold. Silicon-based quantum dot qubits are also amenable to large-scale manufacture and can achieve high single-qubit gate fidelities (exceeding 99.9%) using isotopically enriched silicon. However, while two-qubit gates have been demonstrated in silicon, it has not yet been possible to rigorously assess their fidelities using randomized benchmarking, since this requires sequences of significant numbers of qubit operations ($\gtrsim 20$) to be completed with non-vanishing fidelity. Here, for qubits encoded on the electron spin states of gate-defined quantum dots, we demonstrate Bell state tomography with fidelities ranging from 80% to 89%, and two-qubit randomized benchmarking with an average Clifford gate fidelity of 94.7% and average Controlled-ROT (CROT) fidelity of 98.0%. These fidelities are found to be limited by the relatively slow gate times employed here compared with the decoherence times $T_2^*$ of the qubits. Silicon qubit designs employing fast gate operations based on high Rabi frequencies, together with advanced pulsing techniques, should therefore enable significantly higher fidelities in the near future.
LANGOLF
Creators: name: SALAUN Michèle
Publisher: name: Sismer
Year: 2007

description: Les campagnes LANGOLF ont lieu tous les ans depuis 2007 sur le Gwen Drez pour évaluer le stock de langoustines dans le golfe de Gascogne. Les objectifs principaux sont : Estimation d'un indice d'abondance du stock de langoustines, structure en taille (selon le céphalothorax) par sexe, Observation macroscopique des stades de maturité sexuelle des femelles, Distribution spatiale par unité sédimentaire de la population, Estimation des indices d'abondances des espèces associées aux captures expérimentales (notamment merlu, galathée). Prélèvement de pièces calcifiées pour la détermination de l'âge des poissons (espèces à intérêt commercial dont la dynamique est suivie), Echantillonnage par strate sédimentaire de la macro-faune et méga-faune benthique associée (exploitée dans le cadre du projet européen BENTHIS 2013-2016 (projet européen sur les impacts des engins sur les écosystèmes benthiques et les innovations technologiques alternatives).
Strangelets at finite temperature
Creators: name: Mustafa, M. G.
name: Ansari, A.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Within the MIT bag model picture of QCD, we have studied the stability of finite size strangelets at finite temperature with baryon number $A \leq 100$. The light quarks $u$ and $d$ are considered massless while mass of the $s$ quark is taken as $150$ MeV. Using discrete eigen energies of the non-interacting quarks in the bag, grand canonical partition function is constructed and then the free energy is minimized with respect to the bag radius. In the $T\rightarrow 0$ limit clear shell structures are found which persist upto about $T=10$ MeV. Infact for $A=6$ the shell structure disappears only at $T > 20$ MeV.
description: Revtex file+4 figures(ps files)
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 1144
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1144, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1144, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Influence of the symmetry energy on the birth of neutron stars and supernova neutrinos
Creators: name: Sumiyoshi, K.
name: Suzuki, H.
name: Toki, H.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the influence of the symmetry energy of the equation of state on the thermal evolution of protoneutron stars and the properties of supernova neutrinos by the numerical simulations after the protoneutron stars are formed. As for the equation of state (EOS) of nuclear matter, we take two EOS's with different symmetry energies obtained by the relativistic mean field theory. We find the symmetry energy plays the essential role on the evolution of lepton profiles and the neutrino fluxes.
description: 6 pages, LaTeX file using l-aa.sty. 12 figures in uuencoded compressed tar PostScript files. Accepted for publication in Astronomy and Astrophysics on March 27, 1995. PostScript version and related files also available at ftp://ftp.kek.jp/kek/preprints/1995/059
SURVIE DES LANGOUSTINES
Creators: name: MORANDEAU Fabien
Publisher: name: Sismer
Year: 2009

description: Des campagnes en mer ont été menées en juillet et octobre 2009 puis en juillet et août 2010 à bord de chalutiers professionnels et La Thalia de l'Ifremer. Leur objectif était de proposer une méthodologie pour estimer 1) le taux de survie des langoustines sur le pont après l'opération de chalutage et 2) le taux de survie des langoustines rejetées vivantes en mer.
Criterion for quantum Zeno and anti-Zeno effects
Creators: name: Zhang, Jia-Ming
name: Jing*, Jun
name: Wang, Li-Gang
name: Zhu, Shi-Yao
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work, we study the decay behavior of a two-level system under the competing influence of a dissipative environment and repetitive measurements. The sign of the second derivative of the environmental spectral density function with respect to the system transition frequency is found to be a sufficient condition to distinguish between the quantum Zeno (negative) and the anti-Zeno (positive) effects raised by the measurements. We check our criterion for practical measurement intervals, which are larger than the conceptual Zeno time, in various environments. In particular, with the Lorentzian spectrum, the quantum Zeno and anti-Zeno phenomena are found to emerge respectively in the near-resonant and off-resonant cases. For the interacting spectra of hydrogenlike atoms, the quantum Zeno effect usually occurs and the anti-Zeno effect can rarely occur unless the transition frequency is close to the cut-off frequency. With a power-law spectrum, we find that sub-Ohmic and super-Ohmic environments lead to the quantum Zeno and anti-Zeno effects, respectively.
description: 14 pages, 7 figures
Appendix A from On the possibility of spontaneous chemomechanical oscillations in adsorptive porous media
Creators: name: D. Bullara
name: Y. De Decker
name: I. R. Epstein
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: 30399 Macromolecular and Materials Chemistry not elsewhere classified
subject: FOS: Chemical sciences
subject: 30699 Physical Chemistry not elsewhere classified

description: Appendix A: Microscopic derivation of the Langmuir kinetics
title: Analog and Digital CMOS Circuit Design for the Control System of ATLAS Pixel Detector
Creators: name: Rizwan, Ahmad
Publisher: name: Fachhochschule Dortmund
Year: 2021
Subjects: subject: 621.3 Elektrotechnik, Elektronik

description: This Master thesis is part of an effort to implement the planned upgrade High- Luminosity Large Hadron Collider (HL-LHC) at CERN Geneva/Switzerland. The ATLAS Pixel Detector which is installed at the LHC is also getting among others a new detector control system (DCS) update. Each module in the Detector Control System will have an integrated DCS chip which includes on-chip shunt and Linear regulators, ADC, bypass transistor and a modified I2C slave node. In this master thesis, Shunt and Linear regulators are explained and simulated using the Globalfoundaries 130nm CMOS designkit. A Kuijk bandgap reference based Power-On-Reset (POR) circuit is explained and designed in detail. The design of the POR includes an implementation with CMOS instead of diodes or bipolar transistors. It was simulated using Globelfoundaries 130nm CMOS designkit. Finally, a layout was developed for fabrication. The DCS system needs DCS bridge controllers which include a Controller Area Network (CAN) node and a modified I2C master node. For this purpose CAN and CANopen standards are explained in detail for implementation.
Reminiscences of Hans Von Kaltenborn : 1950
Publisher: name: Columbia University
Year: 2020
Subjects: Journalists
Radio broadcasting
Broadcast journalism
Radio journalism

description: Childhood and early occupations; Harvard; Brooklyn EAGLE; radio broadcaster with several New York, N.Y. stations and Columbia Broadcasting System and National Broadcasting Company networks, 1921-1950; organized Association of Radio News Analysts, 1942; views on past and future roles of radio; visits to Russia, 1926, 1929; impressions of Adolf Hitler, Calvin Coolidge, and others
title: Entwicklung eines Testsystems für den Physical- und Data-Link-Layer des PSI5-Busses mit automatisierter Auswertung auf Basis der Xilinx ZYNQ SoCs
Creators: name: Walsemann, Alexander
Publisher: name: Fachhochschule Dortmund
Year: 2021
Subjects: subject: 621.3 Elektrotechnik, Elektronik

description: Die vorliegende Masterthesis beschreibt die Entwicklung eines Testsystems für die PSI5- Schnittstelle von ASICs und ASSPs. Zunächst werden anhand des PSI5-Standards die Eigenschaften des Physical- und Data-Link-Layers aufgezeigt, welche neben etwaigen Störgrößen relevant für die Entwicklung des Testsystems sind. Das anschließend entwickelte Testsystem besteht aus einem physical Layer und einem ZYNQ SoC, welcher programmierbare Logik (FPGA) und CPU-Kerne vereint. Die Kernfunktionen der Sensorsimulation zum Testen eines PSI5-Master-Interfaces sind in programmierbarer Logik umgesetzt, während Softwareapplikationen für den Testablauf und die automatisierte Auswertung der Ergebnisse verantwortlich sind. Die beiden CPU-Kerne des ZYNQ SoCs werden als ein asymmetrisches Multiprozessorsystem aus dem Echtzeitbetriebssystem FreeRTOS für zeitkritische Aufgaben und einem modifizierten Linux-Kernel genutzt. Die Bedienung des Testsystems erfolgt über ein Webinterface.
title: Charakterisierung und Analyse vom Reverse and Forward Body Biasing als Durchsatz- und Leistungsoptimierungstechnik für Multi-Core Mikrocontroller
Creators: name: Reiners, Jan-Morten
Publisher: name: Fachhochschule Dortmund
Year: 2021
Subjects: subject: 621.3 Elektrotechnik, Elektronik

description: Diese Masterthesis beschäftigt sich im Rahmen des Testchips TC1.5 der Infineon Austria AG mit der Analyse und Charakterisierung des Reverse und Forward Body Biasing mit differentieller Spannungsskalierung. In einem theoretischen Grundlagenteil werden dem Leser zunächst die Beweggründe sowie die nötigen Informationen der zugrunde liegenden Halbleiter-Technologie vermittelt, um ihn an die Thematik des Body Biasing und der Power Management Einheiten heranzuführen. Es folgt die Beschreibung des AurixPlus-digital EVR and PMS Testchips (Version 1.5) hinsichtlich seiner Struktur und Funktionalität. Den Kern der Arbeit bilden der Aufbau eines teilweise automatisieren Messplatzes, die Entwicklung einer Testsoftware (Python, C#), die Erarbeitung von Test Spezifikationen sowie die Durchführung entsprechender Messungen zur Analyse und Charakterisierung. Die Ergebnisse dieser Messungen werden im Anschluss eingehend besprochen und mit Bezug auf zukünftige Entwicklungen in diesem Bereich bewertet.
title: Verification of the Shunt-Low-Dropout voltage regulator for the current based supply of the serially connected pixel detector modules of the ATLAS- and CMS-experiments at the High-Luminosity Large Hadron Collider
Creators: name: Winkler, Florian
Publisher: name: Fachhochschule Dortmund
Year: 2021
Subjects: subject: 621.3 Elektrotechnik, Elektronik

description: Diese Ausarbeitung dokumentiert die Verifikation des Shunt-Low-Dropout-Spannungsreglers für den Einsatz im ATLAS- und CMS-Projekt. Im Rahmen einer Kooperation zwischen der Fachhochschule Dortmund und dem Forschungsinstitut CERN in Genf wird eine integrierte CMOS Schaltung zur seriellen, strombasierten Spannungsregelung der Pixeldetektormodule entwickelt. Der Fokus dieser Masterthesis ist die simulationstechnische Verifikation unter Berücksichtigung der spezifizierten Einsatzbedingungen in den Experimenten und umfasst - neben einer Einführung in den Shunt-LDO Regler auf Basis des Testchip C - die Vorstellung und Dokumentation der erarbeiteten Simulationsergebnisse.
Element Ratios and the Formation of the Stellar Halo
Creators: name: Gilmore, Gerard
name: Wyse, Rosemary F. G.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It is well-established that the vast majority of metal-poor Galactic halo stars shows evidence for enrichment by solely massive stars. Recent observations have identified more varied behavior in the pattern of elemental abundances measured for metal-rich, [Fe/H]=-1, halo stars, with both high and low values of the ratio of [alpha/Fe]. The low values are most naturally due to the incorporation of iron from Type Ia supernovae. These `low-alpha' halo stars have been interpreted as being accreted from dwarf galaxies. However, these stars are on very high-energy radial orbits, that plunge into the Galactic center, from the outer regions of the stellar halo. We demonstrate here that known dwarf galaxies could not reproduce the observations. Rather, the observations are consistent with fragmentation of a gaseous proto-halo into transient star-forming regions, some of which are sufficiently dense to survive close to the Galactic center, and self-enrich to relatively high metallicities. Those that probe the outer halo sustain star formation long enough to incorporate the ejecta from Type Ia supernovae. The values of the `Type II plateau' in the element ratios for disk stars and for halo stars are equal. This implies that the (massive) stars that enriched the early disk and halo had the same IMF. However, there is a discontinuity in the chemical enrichment history between the halo and disk, as probed by these samples, consistent with previous inferences based on angular momentum considerations.
description: 11pp, 1 figure, uses: aas2pp4.sty, psfig. Astron J in press (Aug 1998)
Kubo formulas for thermodynamic transport coefficients
Creators: name: Kovtun, Pavel
name: Shukla, Ashish
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Uncharged relativistic fluids in 3+1 dimensions have three independent thermodynamic transport coefficients at second order in the derivative expansion. Fluids with a single global $U(1)$ current have nine, out of which seven are parity preserving. We derive the Kubo formulas for all nine thermodynamic transport coefficients in terms of equilibrium correlation functions of the energy-momentum tensor and the current. All parity-preserving coefficients can be expressed in terms of two-point functions in flat space without external sources, while the parity-violating coefficients require three-point functions. We use the Kubo formulas to compute the thermodynamic coefficients in several examples of free field theories.
description: v1: 21 pages, 1 figure; v2: footnotes added, version published in JHEP
A Consistent Meson-Field-Theoretical Description of PP-Bremsstrahlung
Creators: name: Eden, J. A.
name: Gari, M. F.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A parameter-free and relativistic extension of the RuhrPot meson-baryon model is used to define the dominant isoscalar meson-exchange currents. We compute pp-bremsstrahlung observables below the $π-$production threshold using a relativistic hadronic current density that includes impulse, wave function re-orthonormalization, meson-recoil, $\bar{\rm N}$N creation and annihilation, $ρπγ$ + $ωπγ$ + $ρηγ$ + $ωηγ$ vector-meson decay and N$Δγ(π,ρ)$ exchange currents. We obtain a good description of the available data. The N$Δγ(π)$ current is shown to dominate the large two-body contributions and closed-form expressions for various non-relativistic approximations are analyzed. An experimental sensitivity to the admixture of pseudo-scalar and pseudo-vector admixture of the NN$π$ interaction is demonstrated. We examine the Lorentz invariance of the NN$\rightleftharpoons$NN $t$-matrices and show a dominantly pseudo-vector NN$π$ coupling renders impulse approximation calculations without boost operators to be essentially exact. Conversely, a similar analysis of the $Δ{\rm N}\rightleftharpoons$NN transitions shows that boost operators and the two-body $NΔγ$ wave function re-orthonormalization meson-recoil currents are required in NN, $Δ$N and $ΔΔ$ coupled channel $t$-matrix applications. The need for additional data is stressed.
description: 34 pages of uuencoded REVTeX using multicol.sty with 21 figures inlined using epsf.sty. This revision adds section IV.H
Universal magnetoresponse in QCD and $\mathcal{N}=4$ SYM
Creators: name: Endrodi, Gergely
name: Kaminski, Matthias
name: Schafer, Andreas
name: Wu, Jackson
name: Yaffe, Laurence
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using recent lattice data on the thermodynamics of QCD in the presence of a background magnetic field, we show that the ratio of transverse to longitudinal pressure exhibits, to good accuracy, a simple scaling behavior over a wide range of temperature and magnetic field, essentially depending only on the ratio $T/\sqrt B$. We compare this QCD response to the corresponding magnetoresponse in maximally supersymmetric Yang Mills theory. Given suitable calibrations defining the comparison, we find excellent agreement. This may be viewed as a further test of the applicability of holographic models for hot QCD.
description: v2: fixed minor typos, published version; v1: 23 pages, 6 figures
Resonant Thickening of Disks by Small Satellite Galaxies
Creators: name: Sellwood, J. A.
name: Nelson, Robert W.
name: Tremaine, Scott
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the vertical heating and thickening of galaxy disks due to accretion of small satellites. Our simulations are restricted to axial symmetry, which largely eliminates numerical evolution of the target galaxy but requires the trajectory of the satellite to be along the symmetry axis of the target. We find that direct heating of disk stars by the satellite is not important because the satellite's gravitational perturbation has little power at frequencies resonant with the vertical stellar orbits. The satellite does little damage to the disk until its decaying orbit resonantly excites large-scale disk bending waves. Bending waves can damp through dynamical friction from the halo or internal wave-particle resonances; we find that wave-particle resonances dominate the damping. The principal vertical heating mechanism is therefore dissipation of bending waves at resonances with stellar orbits in the disk. Energy can thus be deposited some distance from the point of impact of the satellite. The net heating from a tightly bound satellite can be substantial, but satellites that are tidally disrupted before they are able to excite bending waves do not thicken the disk.
description: 13 pages, 8 figures, to appear in ApJ, latex (aaspp4.sty)
High-spin states in boson models with applications to actinide nuclei
Creators: name: Kuyucak, S.
name: Li, S. C.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We use the 1/$N$ expansion formalism in a systematic study of high-spin states in the $sd$ and $sdg$ boson models with emphasis on spin dependence of moment of inertia and E2 transitions. The results are applied to the high-spin states in the actinide nuclei $^{232}$Th, $^{234-238}$U, where the need for $g$ bosons is especially acute but until now, no realistic calculation existed. We find that the $d$-boson energy plays a crucial role in description of the high-spin data.
description: 11 pages Latex, 4 figures available upon request (to appear in Phys. Lett. B)
Sertularia rosacea Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Hydrozoa
Leptothecata
Sertulariidae
Sertularia
Sertularia rosacea

description: Sertularia rosacea [spec. nov.]
S. denticulis oppositis truncatis, calycibus oblongis fo- liaceo-rosaceis, ramis alternis.
Ellis corall. 6. n. 7. t. 4. f. A. Corallina pumila pennata, denticulis teneris albis & oppositis, vesiculis florem lilii vel mali punicae se expandentem referentibus.
Habitat in Oceano.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 807, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Additional file 1 of Montelukast reduces grey matter abnormalities and functional deficits in a mouse model of inflammation-induced encephalopathy of prematurity
Creators: name: Yates, Abi G.
name: Kislitsyna, Elena
name: Alfonso Martin, Carla
name: Zhang, Jiaying
name: Sewell, Amy L.
name: Goikolea-Vives, Ane
name: Cai, Valerie
name: Alkhader, Lama F.
name: Skaland, Aleksander
name: Hammond, Basil
name: Dimitrova, Ralica
name: Batalle, Dafnis
name: Fernandes, Cathy
name: Edwards, A. David
name: Gressens, Pierre
name: Thornton, Claire
name: Stolp, Helen B.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Mental Health

description: Additional file 1: Figure S1. Effect of montelukast on CysLTR1 and CysLT in the brain. Figure S2. IL-1β induces vascular inflammation, but not BBB breakdown. Figure S3. No improvement of white matter damage is evident following montelukast treatment in this model. Figure S4. No hippocampal damage evident in this model. Figure S5. Inflammation and/or montelukast treatment does not induce motor deficits.
title: Entwurf und Validierung eines diskreten Infrarot LEDTreibers für die Charakterisierung von ToF-Kameras
Creators: name: Wenske, Florian
Publisher: name: Fachhochschule Dortmund
Year: 2021
Subjects: subject: 621.3 Elektrotechnik, Elektronik

description: Im Rahmen dieser Bachelorthesis wird ein Infrarot LED-Treiber auf Basis eines PCBs entwickelt, welcher anschließend charakterisiert wird. Die Hauptbestandteile der Schaltung bilden ein MOSFET und eine High-Power IR-LED. Der Fokus liegt hierbei auf der Analyse des zeitlichen Verhaltens der Lichtemission der LED, um die Eignung dieser Schaltung für ToF-Kameras zu untersuchen. Die vorliegenden Messergebnisse werden mithilfe von Simulationen reproduziert, um eine Grundlage für die genauere Prüfung der Einflussfaktoren zu erhalten.
An extended gauge mediation for muon $(g-2)$ explanation
Creators: name: Bhattacharyya, Gautam
name: Yanagida, Tsutomu T.
name: Yokozaki, Norimi
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: It is increasingly becoming difficult, within a broad class of supersymmetric models, to satisfactorily explain the discrepancy between the measured $(g-2)_μ$ and its standard model prediction, and at the same time satisfy all the other constraints. In this paper we propose a new scheme of gauge mediation by introducing new soft supersymmetry breaking mass parameters for the Higgs sector in a minimal setup containing only a pair of $({\bf 5} + \bar{\bf 5})$ messenger fields of SU(5). This enables us to explain the $(g-2)_μ$ discrepancy while avoiding all the existing constraints. We also provide possible dynamical origin of the new soft mass parameters. The wino and higgsino weighing below 500 GeV constitute the smoking gun signal at the (high luminosity) LHC.
description: 7 pages, 2 figures. Further clarifications added. To appear in PLB
Sertularia pumila Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Hydrozoa
Leptothecata
Sertulariidae
Sertularia
Sertularia pumila

description: Sertularia pumila [spec. nov.]
S. denticulis oppositis mucronatis recurvatis, calycibus obovatis, ramis vagis.
Ellis corall. 9. n. 8. t. 5. f. A.
Sertulariae & plures affines radicatae sunt more plantarum, radiculis extra se dispersis, quamvis flores harum animati motum, quem a ventis non obtinent, voluntario nisu assequantur omnino animalcula.
Raj. angl. 3. p. 37. n. 19. Corallina pumila repens minus ramosa, denticulis bijugis.
Habitat in Oceano.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on pages 807-808, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
NOURSOM
Creators: name: SCHLAICH Ivan
Publisher: name: Sismer
Year: 1981

description: L'objectif de cette campagne qui se déroule en Manche - Baie de somme depuis 1980, sur 5 jours en septembre, est d'évaluer les fluctuations naturelles pluriannuelles des peuplements et d'analyser l'incidence éventuelle de la centrale nucléaire sur le milieu marin et les ressources. Elle permet de déterminer des indices annuels d'abondance et une répartition des poissons plats et autres espèces (crevettes grises, tacauds, merlan).