cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Strengthening the Cohomological Crepant Resolution Conjecture for Hilbert-Chow morphisms
Creators: name: Cheong, Wan Keng
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14N35

description: Given any smooth toric surface S, we prove a SYM-HILB correspondence which relates the 3-point, degree zero, extended Gromov-Witten invariants of the n-fold symmetric product stack [Sym^n(S)] of S to the 3-point extremal Gromov-Witten invariants of the Hilbert scheme Hilb^n(S) of n points on S. As we do not specialize the values of the quantum parameters involved, this result proves a strengthening of Ruan's Cohomological Crepant Resolution Conjecture for the Hilbert-Chow morphism from Hilb^n(S) to Sym^n(S) and yields a method of reconstructing the cup product for Hilb^n(S) from the orbifold invariants of [Sym^n(S)].
description: Revised version
Microscopic black hole and uncertainty principle with minimal length and momentum
Creators: name: Stetsko, M. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate a microscopic black hole in case of modified generalized uncertainty principle with a minimal uncertainty in position as well as in momentum. We calculate thermodynamical functions of a Schwarzschild black hole such as temperature, entropy and heat capacity. It is shown that incorporation of minimal uncertainty in momentum leads to minimal temperature of a black hole similarly as we have for Schwarzschschild-AdS black hole without minimal uncertainty. Minimal temperature gives rise to Hawking-Page phase transition. Emission rate equation and black hole lifetime are also obtained.
description: 13 pages, 4 figures
MESFET MMIC-switches for 28 GHz communication systems
Creators: name: Dieudonne, J.M.
name: Klaaben, A.
name: Adelseck, B.
name: Colquhoun, A.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1992
Subjects: ING-INF/01 Elettronica

description: The development of MESFET MMIC switches for 28 GHz communication systems is presented. Transistors with different channel parameters and gate geometries have been developed and characterized in a SPST series switch configuration. The equivalent circuit parameters are determined by fitting the measured S parameters in the ON and OFF states. A cutoff frequency figure of merit up to 500 GHz is obtained depending on the transistor parameters. Several 28 GHz SPDT switches have been designed and fabricated. Typical input return loss better than 15 dB combined with 3 dB insertion loss and 22 dB isolation has been achieved.
GaAs MMIC switches for high volume applications
Creators: name: Geen, M. W.
name: Green, G. J.
name: Shukla, R.
name: Frier, A. A. G.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1992
Subjects: ING-INF/01 Elettronica

description: A range of miniature, low cost MESFET switch MMICs have been developed to provide SPDT, SP4T, DPDT and signal transfer functions. The switches are primarily intended for high volume commercial applications below 4 GHz such as personal communications systems, microwave local area networks, land mobile satellite receivers, and television distribution systems. The performance levels achieved are also compatible with the demands of many military and space systems up to 6GHz.
INTELLECTUAL CAPITAL OF ENTERPRISES OF THE AGRICULTURAL SECTOR: THEORETICAL FUNDAMENTALS OF RESEARCH
Creators: name: Kolomiiets Tetiana
Publisher: name: Colloquium-journal
Year: 2021
Subjects: intellectual capital
agricultural sector
capital
management mechanism
innovation development
convergence development of systems
agricultural innovation system.

description: Transformational flows in the modern economic environment can be confidently characterized as highly dynamic with accelerating rates at both micro and macro levels of economic systems. The pace of transformation is steadily increasing, making competition increasingly fierce and forcing businesses to adapt to new business conditions. Such changes in economic processes, connections and methods have resulted in the emergence of a new type of knowledgeand information-based economy. As a result, modern businesses are increasingly finding competitive advantages not in the efficiency of the use of material resources, as was the case before, but in the search for intellectual resources.
EXPERIMENTAL EVALUATION STRESS-STRAIN STATE FOR BILLETS DURING ROLLING STAMPING BY ROLLERS
Creators: name: Kupchuk, Ihor
name: Kolisnyk, Mykola
name: Shtuts, Andrii
name: Paladii, Maksym
name: Didyk, Andrii
Publisher: name: Colloquium-journal
Year: 2021
Subjects: stamping
combined technological process
external and internal rings
deformation
damage
stress
destruc-tion

description: In article the outer and inner flanges production of the lids of distillation and fractional columns using blank stacks by the stamping by rolling method has been investigated. Analysis of metal forming and stress-strain state of the blanks was carried out in order to assess and expand the technological capabilities of the process. Formulas are obtained for determining the minimum radius of the mandrel to prevent fracture of blanks under bending and maximal width of the flange, provided control of the peripheral areas of destruc-tion.
The Collapsing Rate of the Kähler-Ricci Flow with Regular Infinite Time Singularity
Creators: name: Fong, Frederick Tsz-Ho
name: Zhang, Zhou
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 53C44

description: We study the collapsing behavior of the Kaehler-Ricci flow on a compact Kaehler manifold X admitting a holomorphic submersion X -> S coming from its canonical class, where S is a Kaehler manifold with dim S < dim X. We show that the flow metric degenerates at exactly the rate of e^{-t} as predicted by the cohomology information, and so the fibers collapse at the optimal rate diameter ~ e^{-t/2}. Consequently, it leads to some analytic and geometric extensions to the regular case of Song-Tian's works on elliptic and Calabi-Yau fibrations. Its applicability to general Calabi-Yau fibrations with possibly singular fibers will also be discussed in local sense.
description: 18 pages; final version, to appear in J. Reine Angew. Math
Design and performance of GaAs MMIC's for L-band low noise front-end applications
Creators: name: Bonato, Gian Luca
name: Boveda, Angel
name: Ripolles, Olga
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1992
Subjects: ING-INF/01 Elettronica

description: This paper describes the design and performance of a GaAs monolithic Low Noise Amplifier and Mixer designed for use in communication systems in the 1.5 - 2.5 GHz frequency band. The low noise amplifier uses a reactive serial feedback configuration and has a measured noise figure of 1.8 dB at room temperature and an associated gain of 20 dB over the full bandwidth. The mixer IC uses an active adder and a FET Mixer, including also an IF output buffer. It provides 9 dB conversion gain without need of external bias networks. This was the first design step towards the integration of the two circuit functions on a single chip.
Asymptotic States and the Definition of the S-matrix in Quantum Gravity
Creators: name: Wiesendanger, C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Viewing gravitational energy-momentum as equal by observation, but different in essence from inertial energy-momentum naturally leads to the gauge theory of volume-preserving diffeormorphisms of an inner Minkowski space. The generalized asymptotic free scalar, Dirac and gauge fields in that theory are canonically quantized, the Fock spaces of stationary states are constructed and the gravitational limit - mapping the gravitational energy-momentum onto the inertial energy-momentum to account for their observed equality - is introduced. Next the S-matrix in quantum gravity is defined as the gravitational limit of the transition amplitudes of asymptotic in- to out-states in the gauge theory of volume-preserving diffeormorphisms. The so defined S-matrix relates in- and out-states of observable particles carrying gravitational equal to inertial energy-momentum. Finally generalized LSZ reduction formulae for scalar, Dirac and gauge fields are established which allow to express S-matrix elements as the gravitational limit of truncated Fourier-transformed vacuum expectation values of time-ordered products of field operators of the interacting theory. Together with the generating functional of the latter established in an earlier paper [8] any transition amplitude can in principle be computed to any order in perturbative quantum gravity.
description: 35 pages
Vector dark energy and high-z massive clusters
Creators: name: Carlesi, Edoardo
name: Knebe, Alexander
name: Yepes, Gustavo
name: Gottloeber, Stefan
name: Jimenez, Jose Beltran
name: Maroto, Antonio L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The detection of extremely massive clusters at $z>1$ such as SPT-CL J0546-5345, SPT-CL J2106-5844, and XMMU J2235.3-2557 has been considered by some authors as a challenge to the standard \LCDM$\;$cosmology. In fact,assuming Gaussian initial conditions, the theoretical expectation of detecting such objects is as low as $\leq 1%$. In this \textit{Letter} we discuss the probability of the existence of such objects in the light of the Vector Dark Energy (VDE) paradigm, showing by means of a series of $N$-body simulations that chances of detection are substantially enhanced in this non-standard framework.
description: Accepted for publications in MNRAS, 6 pages, 3 figures. Replaced 1st version due to problems with the first submitted .tex file
Magnetotransport in the Kondo model with ferromagnetic exchange interaction
Creators: name: Cano, Mathias Cabrera
name: Florens, Serge
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider the transport properties in an applied magnetic field of the spin S=1/2 Kondo model with ferromagnetic exchange coupling to electronic reservoirs, a description relevant for the strong coupling limit of underscreened spin S=1 Kondo impurities. Because the ferromagnetic Kondo interaction is marginally irrelevant, perturbative methods should prove accurate down to low energies. For the purpose of this study, we use a combination of Majorana diagrammatic theory with Density Matrix Numerical Renormalization Group simulations. In the standard case of antiferromagnetic Kondo exchange, we first show that our technique recovers previously obtained results for the T-matrix and spin relaxation at weak coupling (above the Kondo temperature). Considering then the ferromagnetic case, we demonstrate how the low-energy Kondo anomaly splits for arbitrary small values of the Zeeman energy, in contrast to fully screened Kondo impurities near the strong coupling Fermi liquid fixed point, and in agreement with recent experimental findings for spin S=1 molecular quantum dots.
description: 14 pages, 13 figures, minor changes in V3
Solving the AdS/CFT Y-system
Creators: name: Gromov, Nikolay
name: Kazakov, Vladimir
name: Leurent, Sebastien
name: Volin, Dmytro
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Using integrability and analyticity properties of the AdS5/CFT4 Y-system we reduce it to a finite set of nonlinear integral equations. The Z4 symmetry of the underlying coset sigma model, in its quantum version, allows for a deeper insight into the analyticity structure of the underlying Y-functions and T-functions, as well as for their analyticity friendly parameterization in terms of Wronskian determinants of Q-functions. As a check for the new equations, we reproduce the numerical results for the Konishi operator previously obtained from the original infinite Y-system.
description: 62 pages, 11 figures; version 3: published version
Very high volume GaAs MMICs
Creators: name: Snowden, Christopher M.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: ING-INF/01 Elettronica

description: The increase in demand for high performance semiconductor devices to supply the mobile communications market has led to dramatic developments in the compound semiconductor business, with the launch of a number of 6” GaAs foundries. The background to the demand for very high volumes of RF products for this market is discussed, together with the prospects for future growth. The recent establishment of a very large 6” GaAs facility by Filtronic plc in the UK is described together with the technical and economic considerations that will lead to a capacity of up to 175,000 wafers/annum.
CZYNNIKI WPŁYWU NA BEZPIECZEŃSTWO GOSPODARCZE UKRAIŃSKICH PRZEDSIĘBIORSTW PRZETWÓRCZYCH
Creators: name: Wdowenko, L.O.
Publisher: name: Colloquium-journal
Year: 2021
Subjects: bezpieczeństwo ekonomiczne
zagrożenia
przedsiębiorstwa przetwórcze
gołąb piekarniczy
economic security
threats
preconceived notions
baker pigeon

description: Artykuł ujawnia teoretyczne podstawy pojęcia „bezpieczeństwo”, „bezpieczeństwo ekonomiczne przedsiębiorstwa”. Rozwój przedsiębiorstw przetwórczych przemysłu piekarniczego wpływa na kształtowanie bezpieczeństwa żywnościowego i jest orientacyjnym wskaźnikiem rozwoju gospodarczego Ukrainy. Bezpieczeństwo ekonomiczne bezpiecznych przedsiębiorstw przetwórczych branży piekarniczej to stan ich działalności, który charakteryzuje się odpornością na zagrożenia wewnętrzne i zewnętrzne, zdolnością do zapewnienia realizacji własnych interesów ekonomicznych, zdolnością do działania i rozwoju w warunkach zdrowej konkurencji i ryzyko biznesowe. Stwierdza się, że osiągnięcie ogólnego poziomu bezpieczeństwa ekonomicznego przedsiębiorstw przetwórczych wymaga zbadania pełnego spektrum czynników, od których zależy efektywność ich działania w warunkach ostrej konkurencji. Artykuły analizują stan rozwoju przedsiębiorstw branży piekarniczej, identyfikuj
description: The article reveals the theoretical foundations of the concept of "security", "economic security of the enterprise". It is established that the stable level of economic security of the national economy is determined by the level of security of the real sector of the economy and individual industries. The development of processing enterprises in the bakery industry affects the formation of food security and is an indicative indicator of economic development of Ukraine. The economic security of safe processing enterprises of the bakery industry means a state of their activity, which is characterized by resistance to internal and external threats, the ability to ensure the realization of their own economic interests, can operate and develop in conditions of healthy competition and business risk. It is determined that to achieve the general level of economic security of processing enterprises requires the study of the full range of factors on which depends the effectiveness of their operation in conditions of fierce competition. The articles analyze the state of development of enterprises in the bakery industry, identify external and internal factors influencing the economic security of enterprises.
The width of 5-dimensional prismatoids
Creators: name: Matschke, Benjamin
name: Santos, Francisco
name: Weibel, Christophe
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52B05, 52B55, 90C05

description: Santos' construction of counter-examples to the Hirsch Conjecture (2012) is based on the existence of prismatoids of dimension d of width greater than d. Santos, Stephen and Thomas (2012) have shown that this cannot occur in $d \le 4$. Motivated by this we here study the width of 5-dimensional prismatoids, obtaining the following results: - There are 5-prismatoids of width six with only 25 vertices, versus the 48 vertices in Santos' original construction. This leads to non-Hirsch polytopes of dimension 20, rather than the original dimension 43. - There are 5-prismatoids with $n$ vertices and width $Ω(\sqrt{n})$ for arbitrarily large $n$. Hence, the width of 5-prismatoids is unbounded.
description: 31 pages, 10 figures. Changes from v1: the introduction has been edited, and a minor correction made in the statement of Proposition 1.5
High efficiency LOW AM/PM 6W C-band MMIC power amplifier for a space radar program
Creators: name: Butel, Y.
name: Adam, T.
name: Cogo, B.
name: Soulard, M.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: ING-INF/01 Elettronica

description: This paper describes the design of a compact C-band MMIC power amplifier. Intensive non-linear and electro-magnetic simulations with accurate table-based models allowed the chips to achieve very good performance. A linear gain of 28 dB, an output power greater than 6 W with 50 % of power added efficiency and 3°/dB of AM/PM conversion at 2.5 dB gain compression have been measured over production at ambient temperature in the useful bandwidth.
Nuraghe 0.6 User Manual And Developer Documentation
Creators: name: Righini, Simona
name: Bartolini, Marco
name: Buttu, Marco
name: Migoni, Carlo
name: Orlati, Andrea
name: Poppi, Sergio
Publisher: name: Zenodo
Year: 2016

description: Released with Nuraghe 0.6 includes updated user and developer documentation with release notes.
QCD diffractive mechanism of exclusive $W^+W^-$ pair production at high energies
Creators: name: Lebiedowicz, Piotr
name: Pasechnik, Roman
name: Szczurek, Antoni
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss new diffractive mechanism of central exclusive production of $W^+W^-$ pairs in proton-proton collisions at the LHC. We include diagrams with intermediate virtual Higgs boson as well as quark box diagrams. Several observables related to this process are calculated. Predictions for the total cross section and differential distributions in $W$-boson rapidity and transverse momentum as well as $WW$ invariant mass are presented. We also show results for different polarization states of the final $W^{\pm}$ bosons. We compare the contribution of the $γγ\to W^+ W^-$ mechanism considered in the literature with the contribution of the diffractive mechanism through the $gg \to W^+ W^-$ subprocess for the different observables. The phase space integrated diffractive contribution when separated is only a small fraction of fb compared to 115.4 fb of the $γγ$-contribution without absorption. The latter contribution dominates at small four-momentum transfers squared in the proton lines and in a broad range of $W^+ W^-$ invariant masses. This offers a possibility of efficient searches for anomalous triple-boson ($γW W$) and quartic-boson ($γγWW$) couplings and testing models beyond the Standard Model. We discuss shortly also the $p p \to p p γγ$ process, where the box contribution is very similar to that for $W^+ W^-$ and compare our results with recent CDF data. Nice agreement has been achieved without additional free parameters.
description: 22 pages, 15 figures, extended version including diffractive gamma-gamma production, published in Nucl. Phys. B867 (2013) 61
FEATURES OF THE APPROACH TO ASSESSMENT OF FROST RESISTANCE OF BREEDING MATERIAL IN THE GENUS LOLIUM L.
Creators: name: Bocharova. M, I.
Publisher: name: Colloquium-journal
Year: 2021
Subjects: Lolium multiflorum
Lolium perenne
ryegrass
frost resistance
germinated seeds
method
freezing
hardening
evaluation.

description: The research results are presented to improve the methods of assessment and selection of breeding materi-al of multiflorous and perennial ryegrass in terms of frost resistance. It was found that in the primary stages of breeding (collection and hybrid nurseries), to differentiate a significant number of numbers, it is advisable to use an "optimized approach" for freezing hardened seeds
Hardy and Lieb-Thirring inequalities for anyons
Creators: name: Lundholm, Douglas
name: Solovej, Jan Philip
Publisher: name: arXiv
Year: 2011
Subjects: subject: Spectral Theory (math.SP)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 81Q10, 81S05, 35P15, 46N50

description: We consider the many-particle quantum mechanics of anyons, i.e. identical particles in two space dimensions with a continuous statistics parameter $α\in [0,1]$ ranging from bosons ($α=0$) to fermions ($α=1$). We prove a (magnetic) Hardy inequality for anyons, which in the case that $α$ is an odd numerator fraction implies a local exclusion principle for the kinetic energy of such anyons. From this result, and motivated by Dyson and Lenard's original approach to the stability of fermionic matter in three dimensions, we prove a Lieb-Thirring inequality for these types of anyons.
description: Corrected and accepted version. 30 pages, 4 figures
Broadband AlGaN/GaN HEMT MMIC Attenuators with High Dynamic Range
Creators: name: Alekseev, Egor
name: Hsu, Shawn S.H.
name: Pavlidis, Dimitris
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: ING-INF/01 Elettronica

description: GaN-based HEMT Microwave Monolithic Integrated Circuit (MMIC) attenuators were realized for the first time. The MMICs employed AlGaN/GaN HEMTs fabricated by optical contact lithography (Lg=1µm) with high current gain (fT) and maximum power gain (fMAX) cutoff frequencies of 17 and 24GHz, respectively. The MMIC attenuators employing three 100µm-wide AlGaN/GaN HEMTs in π -configuration had minimum insertion of 4dB, high dynamic range (>30dB), and broadband operation (up to 18GHz). On-wafer power characterization at 8GHz confirmed successful operation of the GaN-based attenuator MMICs at power density exceeding 15W/mm.
Interactive shading protractor in GeoGebra for Olgyays' stereographic projection
Creators: name: Stevanovic, Sanja
Publisher: name: Zenodo
Year: 2019
Subjects: Olgyay method
Window shading
Overhang
Side fin

description: Shading protractor, as developed by Viktor and Aladar Olgyay, recreated as an interactive graph in GeoGebra.

To use the protractor, one first needs to create an equidistant solar path chart for a given location, for example using the Solarbeam application (solarbeam.sourceforge.net). This solar path chart has to be inserted as a background image in the shading protractor file, and the center and radius of the outer circle aligned with the solar path chart. Shading protractor currently contains an example of a solar path chart with 1500x1500 pixels, with image corners (1) at "LowerLeftCornerOfBackgroundSolarChart" (LLC), (2) at LLC+(5,0) and (4) at LLC+(0,5), so you can these settings for a new solar path chart to avoid repositioning the outer circle.

The protractor serves to illustrate shading masks for an overhang with side fins for a window with given orientation. Their defining points can be moved around freely in GeoGebra to observe how the shading mask changes accordingly.
LECTURE FOR CORRESPONDENCE STUDENTS AS AN ELEMENT OF FORMATION OF PROFESSIONAL COMPETENCE OF ACCOUNTING AND TAXATION PROFESSIONALS
Creators: name: Ishchenko Yana
Publisher: name: Colloquium-journal
Year: 2021
Subjects: educational process
professional competence
correspondence form of study
study session
lecture
profes-sional disciplines
accounting disciplines.

description: The publication substantiates the methodological methods of teaching lectures in accounting disciplines, taking into account the peculiarities of the form of education and the contingent of part-time students for the formation of their professional competence.
DIGITAL TRANSFORMATION OF THE ECONOMY IN THE IMPLEMENTATION OF THE NATIONAL DEVELOPMENT STRATEGY OF UKRAINE
Creators: name: Fostolovych Valentyna
Publisher: name: Colloquium-journal
Year: 2021
Subjects: Agriculture
digitization
system
power
economic relations
digital economy
economic entities
contactless economy
national economic strategy.

description: The main tools for the implementation of sustainable development goals are identified. Prospects of implemen-tation of European integration initiatives of Ukraine in the system of economic activity of enterprises, in the model of interrelations of society, state and business structures are recognized. The importance of intellectual development of a person as a person in the system of innovative development of society is proved. It is demon-strated that the intellectual potential of the state's human capital determines the country's place at the world level. A comparative assessment and rating of the Global Innovation Index of Ukraine and other countries. The importance of financing research and development is noted. Emphasis on digitalization as a tool for post-industrial development of society. The dynamics of realization of the tasks of the Sustainable Development Goals is analyzed. The ways of digital transformation are singled out.
A Gate Bias Free P wer MMIC Module for Ka-Band High-speed Wireless Applications
Creators: name: Ichikawa, S.
name: Satoh, T.
name: Shimura, T.
name: Betti-Berutto, A.
name: Furukawa, Y.
name: Hasegawa, Y.
name: Kuroda, S.
name: Fukaya, J.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: ING-INF/01 Elettronica

description: A high power and high gain packaged power MMIC module f r Ka-band applicati ns perating under a single polarity bias supply has been developed for the first time.This PA module consists f tw pseudomorphic HEMT MMICs,with Lg=0.25um,packaged in a single power module. These MMICs operate without a gate bias control v ltage when the gate bias is shunted in the package. This PA module pr vides 30dBm utput p wer and approximately 30dB of gain in the 27-31GHz range. The single bias supply perati n pr vides significant cost advantage to the device manufacture as well as the end user since there is no need to design a gate contr l bias network.
Microscopic theory of indistinguishable single-photon emission from a quantum dot coupled to a cavity: The role of non-Markovian phonon-induced decoherence
Creators: name: Kaer, P.
name: Lodahl, P.
name: Jauho, A. -P.
name: Mork, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the fundamental limit on single-photon indistinguishability imposed by decoherence due to phonon interactions in semiconductor quantum dot-cavity QED systems. Employing an exact diagonalization approach we find large differences compared to standard methods. An important finding is that short-time non-Markovian effects limit the maximal attainable indistinguishability. The results are explained using a polariton picture that yields valuable insight into the phonon-induced dephasing dynamics.
description: published version, comments are very welcome
ZONE OF CROSSING "GOOD" AND "BAD" CONCEPTS
Creators: name: Nazarova, Nargiz
Publisher: name: Zenodo
Year: 2023

description: This article emphasizes that the concepts of "good" and "evil" in philosophy are closely related to each other, and "good" and "evil" are moral concepts and are the main indicators of human morality.  The intersection of the concepts of "good" and "evil" is analyzed using examples.
Microsystems by Bulk micromachining
Creators: name: Esashi, M.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: ING-INF/01 Elettronica

description: Deep RIE (Reactive Ion Etching) was developed not only for silicon but also for other materials and silicon microstructures made by the deep RIE was used as molds for making ceramic microstructures. Packaged micro mechanical sensors as pressure sensors and electrostatically levitating micro motors for gyroscope have been developed. Microprobes are fabricated for future data storage devices. Energy dissipation of resonating thin cantilever was studied for large Q factor required for highly sensitive resonating sensors. Active catheters which move like snakes in blood vessel and sensors for the catheter have been studied for the purpose of minimal invasive medicine.
A Study on Enhancing Accuracy in Proof of Delivery (POD) at TVS Logistics
Creators: name: Varsha Saraswathi G, Ganesh Kumar M
Publisher: name: Zenodo
Year: 2025

description: Proof of Delivery (POD) plays a pivotal role in logistics by confirming that goods have beendelivered to the intended recipient, serving as both operational confirmation and legal documentationin the event of disputes. Inaccurate PODs, caused by human error, delayed updates, or missinginformation, can lead to customer dissatisfaction, operational disruptions, and increased costs. ForTVS Logistics, managing thousands of deliveries daily, POD accuracy is vital for smooth operations,customer trust, and financial stability. This study investigates the root causes of POD discrepancies atTVS Logistics, focusing on factors such as human errors, communication breakdowns, andtechnological limitations. Through a comprehensive mixed-methods approach, including surveys,interviews, and performance data analysis, the research aims to identify patterns in these discrepanciesand propose solutions. Key strategies include the implementation of digital POD systems to reducemanual errors, real-time tracking technologies to enhance delivery visibility, and targeted employeetraining to improve process adherence. The study also presents a phased implementation plan andevaluates the impact of these solutions on delivery accuracy and customer satisfaction. AddressingPOD accuracy issues is not only crucial for maintaining operational efficiency at TVS Logistics butalso for improving overall customer experience and reducing financial losses. Ultimately, the researchhighlights the need for integrated technological solutions and continuous process improvement tomitigate POD discrepancies.
SUSY Background to Neutral MSSM Higgs Boson Searches
Creators: name: Feigl, Bastian
name: Rzehak, Heidi
name: Zeppenfeld, Dieter
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Within the Minimal Supersymmetric Standard Model (MSSM) the production and decay of superpartners can give rise to backgrounds for Higgs boson searches. Here MSSM background processes to the vector boson fusion channel with the Higgs boson decaying into two tau leptons or two W-bosons are investigated, giving rise to dilepton plus missing transverse momentum signals of the Higgs boson. Starting from a scenario with relatively small masses of the supersymmetric (SUSY) particles, with concomitant large cross section of the background processes, one obtains a first conservative estimate of the background. Light chargino pair production plus two jets, lightest and next-to-lightest neutralino production plus two jets as well as slepton pair production plus two jets are identified as important contributions to the irreducible SUSY background. Light chargino and next-to-lightest neutralino production plus two jets and next-to-lightest neutralino pair production plus two jets give rise to reducible backgrounds, which can be larger than the irreducible ones in some scenarios. The relevant distributions are shown and additional cuts for MSSM background reduction are discussed. Extrapolation to larger squark masses is performed and shows that MSSM backgrounds are quite small for squark masses at the current exclusion limits.
description: 51 pages, 26 figures, 21 tables. v2: included reducible background, version accepted by EPJC. v3: matches version published in EPJC. v4: error in h->WW signal corrected
Finite Ground Coplanar Waveguide Shunt MEMS Switches for Switched Line Phase Shifters
Creators: name: Ponchak, George E.
name: Simons, Rainee N.
name: Scardelletti, Maximilian C.
name: Varaljay, Nicholas C.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: ING-INF/01 Elettronica

description: Switches with low insertion loss and high isolation are required for switched line phase shifters and for transmit/receive switches at the front end of communication systems. The design, fabrication, and characteristics of a Finite Ground Coplanar (FGC) waveguide capacitive shunt MEMS switch implemented on high resistivity Silicon is presented. The switch has a measured insertion loss and return loss of less than 0.35 dB and greater than 11 dB respectively, over the frequency range of 3 to 50 GHz. The measured isolation is greater than 18 dB at 50 GHz.
Integrated Millimeter-Wave Silicon Micromachined Filters
Creators: name: Blondy, P.
name: Baleras, F.
name: Cros, D.
name: Massit, C.
name: Guillon, P.
name: Zanchi, C.
name: Lapierre, L.
name: Sombrin, J.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: ING-INF/01 Elettronica

description: This paper describes the design and the fabrication of a new type of millimeter-wave micromachined band pass filters, using silicon waveguides. The main interest of these components is their ability to be integrated along with other MMICs using flip chip bonding techniques. The micromachining fabrication technique allows to maintain very good fabrication tolerances, while the resulting filters are very compact. The design methodology is presented along with two examples of two and four pole filters at 42 GHz. applied to these filters and at last simulation results on 2 and 4 pole bandpass filters.
Passiflora contracta Vitta 2004
Creators: name: Araújo, Diogo
name: Alves, Marccus
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Passifloraceae
Passiflora
Passiflora contracta

description: 74. Passiflora contracta Vitta
Brazil (Pernambuco, Bahia, Espírito Santo). Distributed along the litoral: Atlantic forest, seasonal Forest and restingas (Vitta & Bernaci 2004).
Selected Vouchers:—Piedade, Araújo et al. 388 (UFP, ULM); Macacos, Araújo et al. 310 (UFP); Zambana, Araújo et al. 576 (UFP).
description: Published as part of Araújo, Diogo & Alves, Marccus, 2010, Climbing plants of a fragmented area of lowland Atlantic Forest, Igarassu, Pernambuco (northeastern Brazil), pp. 1-24 in Phytotaxa 8 on page 20, DOI: 10.11646/phytotaxa.8.1.1, http://zenodo.org/record/4893863
Sigma functions for a space curve of type (3, 4, 5)
Creators: name: Matsutani, Shigeki
name: Komeda, Jiryo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Algebraic Geometry (math.AG)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 14H05, 14H42, 14H50, 14H55, 20M07

description: In this article, a generalized Kleinian sigma function for an affine (3,4,5) space curve of genus 2 was constructed as the simplest example of the sigma function for an affine space curve, and in terms of the sigma function, the Jacobi inversion formulae for the curve are obtained. An interesting relation between a space curve with a semigroup generated by (6,13,14,15,16) and Norton number associated with Monster group is also mentioned with an Appendix by Komeda.
description: p.17
Multi-qubit parity measurement in circuit quantum electrodynamics
Creators: name: DiVincenzo, David P.
name: Solgun, Firat
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present a concept for performing direct parity measurements on three or more qubits in microwave structures with superconducting resonators coupled to Josephson-junction qubits. We write the quantum-eraser conditions that must be fulfilled for the parity measurements as requirements for the scattering phase shift of our microwave structure. We show that these conditions can be fulfilled with present-day devices. We present one particular scheme, implemented with two-dimensional cavity techniques, in which each qubit should be coupled equally to two different microwave cavities. The magnitudes of the couplings that are needed are in the range that has been achieved in current experiments. A quantum calculation indicates that the measurement is optimal if the scattering signal can be measured with near single photon sensitivity. A comparison with an extension of a related proposal from cavity optics is presented. We present a second scheme, for which a scalable implementation of the four-qubit parities of the surface quantum error correction code can be envisioned. It uses three-dimensional cavity structures, using cavity symmetries to achieve the necessary multiple resonant modes within a single resonant structure.
description: 17 pages, 4 figures, v2: 21 pages, 5 figures, enlarged discussion of surface code implementation with 3D techniques
Novel Series and Shunt MEMS Switc Geometries for X-Band
Applications
Creators: name: Muldavin, Jeremy B.
name: Rebeiz, Gabriel M.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: ING-INF/01 Elettronica

description: In this paper,no el metal membrane series switches and inducti ely tuned shunt switches are presented.The series switch produces an isolation better than - 30 dB at 5 GHz in the up-state and return loss less than -20 dB from DC to 20 GHz. The shunt switch geometry can be modi ﬁed to specify the resonant frequency of the switch in the down-state.The shunt switch is modeled by an equivalent CLR circuit.The MEMS membrane height is 1.5-2.5 µm,resulting in a pulldown oltage of 15-25 V.Application areas are in low-loss high-isolation communication and radar switches.
Light Sterile Neutrino in the Minimal Extended Seesaw
Creators: name: Zhang, He
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by the recent observations on sterile neutrinos, we present a minimal extension of the canonical type-I seesaw by adding one extra singlet fermion. After the decoupling of right-handed neutrinos, an eV-scale mass eigenstate is obtained without the need of artificially inserting tiny mass scales or Yukawa couplings for sterile neutrinos. In particular, the active-sterile mixing is predicted to be of the order of 0.1. Moreover, we show a concrete flavor A_4 model, in which the required structures of the minimal extended seesaw are realized. We also comment on the feasibility of accommodating a keV sterile neutrino as an attractive candidate for warm dark matter.
description: 5 pages, final version with minor modifications, to appear in PLB
MILITARY IMAGES AS A COMPONENT OF ADVERTISING MYTH-MAKING: WORLDVIEW-COMMUNICATIVE ASPECT
Creators: name: Slyusar M., V.
Publisher: name: Colloquium-journal
Year: 2021
Subjects: mythization
mythologization
the newest myth
artistic myth
advertising myth
symbolic production and ex-change
cultural heritage.

description: The article examines the modern advertising and information space and the peculiarities of the produc-tion of military images in it. It is shown that they are a component of advertising myth-making, because in the process of symbolic exchange they carry their own unique associative semantic load, which consists in the ex-pression of courage, a sense of security. Military images are used in the production of mythologems "we are strong – they are afraid of us", "invisible in work, but always reliable", "army – strength", "invincibility of the army", "continuation of the traditions of the victorious army". The peculiarities of machismo as a specific way of depicting the image of the military are revealed. Important in symbolic production is the visualization of images of military in uniform, images of military signs, symbols. In periods of passionary explosions, images of the military in the media are markers of national identity. Military images are also used in social advertising to affirm in the mass consciousness faith in one's army, a sense of security and safety. Attention is also drawn to sexist advertisements such as "military" is a "real man's job".
Decade Wide Bandwidth Integrated Very Low Noise Amplifier
Creators: name: Bij De Vaate, J.G.
name: Woestenburg, E.E.M.
name: Witvers, R.H.
name: Pantaleoni, R.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: ING-INF/01 Elettronica

description: This paper describes the design, realization and characterization of an integrated Low Noise Amplifier (LNA) with a bandwidth from 0.4 to 8 GHz. A very good noise figure is achieved in this frequency band. The design uses a source impedance of 150 ohm in the contrary to the standard of 50 ohm. The load impedance is 50 ohm. The use of a non-50 input source impedance creates new possibilities for the design of the power and noise matching circuitry. A combination of a good power and noise match can be achieved for a very broad band, with a minimum of components. This concept requires a non-standard antenna (source) output impedance (150 ohm), which is for most antenna principles easier to realize then 50 ohm [1]. The LNA will be part of an active antenna phased array system, which should operate from 0.2 to 2 GHz [2].
Sparse regression algorithm for activity estimation in $γ$ spectrometry
Creators: name: Sepulcre, Y.
name: Trigano, T.
name: Ritov, Y.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: We consider the counting rate estimation of an unknown radioactive source, which emits photons at times modeled by an homogeneous Poisson process. A spectrometer converts the energy of incoming photons into electrical pulses, whose number provides a rough estimate of the intensity of the Poisson process. When the activity of the source is high, a physical phenomenon known as pileup effect distorts direct measurements, resulting in a significant bias to the standard estimators of the source activities used so far in the field. We show in this paper that the problem of counting rate estimation can be interpreted as a sparse regression problem. We suggest a post-processed, non-negative, version of the Least Absolute Shrinkage and Selection Operator (LASSO) to estimate the photon arrival times. The main difficulty in this problem is that no theoretical conditions can guarantee consistency in sparsity of LASSO, because the dictionary is not ideal and the signal is sampled. We therefore derive theoretical conditions and bounds which illustrate that the proposed method can none the less provide a good, close to the best attainable, estimate of the counting rate activity. The good performances of the proposed approach are studied on simulations and real datasets.
Fine asymptotics of profiles and relaxation to equilibrium for growth-fragmentation equations with variable drift rates
Creators: name: Balagué, Daniel
name: Cañizo, José
name: Gabriel, Pierre
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We are concerned with the long-time behavior of the growth-fragmentation equation. We prove fine estimates on the principal eigenfunctions of the growth-fragmentation operator, giving their first-order behavior close to 0 and $+\infty$. Using these estimates we prove a spectral gap result by following the technique in [Caceres, Canizo, Mischler 2011, JMPA], which implies that solutions decay to the equilibrium exponentially fast. The growth and fragmentation coefficients we consider are quite general, essentially only assumed to behave asymptotically like power laws.
Universality for bond percolation in two dimensions
Creators: name: Grimmett, Geoffrey R.
name: Manolescu, Ioan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: All (in)homogeneous bond percolation models on the square, triangular, and hexagonal lattices belong to the same universality class, in the sense that they have identical critical exponents at the critical point (assuming the exponents exist). This is proved using the star-triangle transformation and the box-crossing property. The exponents in question are the one-arm exponent $ρ$, the 2j-alternating-arms exponents $ρ_{2j}$ for $j\ge1$, the volume exponent $δ$, and the connectivity exponent $η$. By earlier results of Kesten, this implies universality also for the near-critical exponents $β$, $γ$, $ν$, $Δ$ (assuming these exist) for any of these models that satisfy a certain additional hypothesis, such as the homogeneous bond percolation models on these three lattices.
description: Published in at http://dx.doi.org/10.1214/11-AOP740 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
ВИДЫ ИНФОРМАЦИОННЫХ ТЕХНОЛОГИЙ, ИСПОЛЬЗУЕМЫХ В ПРАВОВОЙ СФЕРЕ
Creators: name: Дедок Н. М.
name: Шарыпова В. А.
Publisher: name: Colloquium-journal
Year: 2021
Subjects: информационные технологии
информационные системы
виды информационных технологий
право
правовая сфера
юриспруденция.

description: В статье рассмотрены основные виды информационных технологий, используемых в правовой сфе-ре. Показаны особенности информационных технологий. Приведены примеры технологий, применяемых в настоящее время в правовой сфере.
Punishing Effect of Rhodiola rosea in larval Drosophila melanogaster
Creators: name: Sibinski, Anne
Publisher: name: Otto-von-Guericke-Universität Magdeburg
Year: 2020
Subjects: subject: Rosenwurz
subject: Taufliege
subject: Assoziatives Lernen
subject: 615.10724

description: The aim of this thesis is to investigate the reinforcing effects that R. rosea has in larval D. melanogaster, an established study case for associative learning. R. rosea root material was previously known to have a rewarding effect in a one-odor learning paradigm in D. melanogaster larvae. Here it is shown that, in addition, this plant material has as punishing effect. Given that a compound that can mediate the rewarding effects of R. rosea has recently been identified, it was the aim of this thesis to identify the chemical compound(s) responsible for the punishing effect. Towards this end a bio-assay guided fractionation with activity-correlation analysis was performed. Each fractionation step was tested in the one-odor learning paradigm for effectiveness. In the end a single compound could not be identified. The results suggest, however, that the punishing and the rewarding effects of R. rosea are not mediated by the very same compound. The second part of this thesis focuses on the neuronal circuitry underlying the punishing effect of R. rosea in D. melanogaster larvae. Transgenic manipulation of the larval mushroom body, a brain area known for memory formation, was performed using the UAS/ Gal4 system. UAS-KirGFP/ OK107-Gal4 animals showed impairments in R. rosea extract punishment memory. However, experiments for innate responses towards odor and R. rosea extract showed differences to genetic control animals, such that these differences might partially account for the observed punishment memory defects.