cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The use of cone beam computed tomography for implant treatment planning at UBC
Creators: name: Hans, Amandeep
Publisher: name: University of British Columbia
Year: 2020

description: Purpose: Cone beam computed tomography (CBCT) has become the standard of care for many applications in the specialty of periodontics. CBCT is now taken for almost all implant related cases and there is also a clear shift towards higher resolution images. However, the increased radiation dosage from a higher resolution images must be accompanied by valid clinical justification. Aims: The first aim was to conduct an audit of all CBCT prescriptions at the UBC Faculty of Dentistry with a focus on implant related prescriptions. Concurrently, all implant related prescriptions were evaluated for compliance with the current guidelines. The second aim was to evaluate whether altering the mA and kVp values will result in measurement differences on CBCT images. Materials and Methods: Ethics approval was granted for the retrospective portion of this study (Certificates H18-01536 and H19-02001). All CBCT prescriptions were audited from Jan. 1, 2015 to Aug. 31, 2018. However, the prescriptions originating from the Graduate Periodontics and Prosthodontics programs were examined more thoroughly. A major finding from the audit was a shift towards higher resolution images for the small FOV. An in vitro experiment was conducted to determine whether changing the imaging parameters and scatter would affect the measured distance between two adjacent implants placed in a model. Results: Almost all the CBCT scans prescribed in the Periodontics and Prosthodontics departments were prescribed for the purposes of implant treatment planning. In Graduate Periodontics and Prosthodontics, 95% and 94% of the prescriptions, respectively, were compliant with the guidelines published by the AAOMR and the AAP. Manipulation of the imaging parameters did affect the measured distance between the two implants when specific mA and kVp values were compared. The scatter and metal artifacts from the addition of a third implant did not have any effect on the measured distance. Conclusion: CBCT was used judiciously for implant treatment planning in both the Graduate Periodontics and Prosthodontics department. Manipulation of CBCT parameters had a statistically significant effect on the measured distance between two adjacent implants but the potential scatter and metal artifacts from the addition of third implant did not.
Spectroscopic techniques conceptualized with the remote sensing of atmospheric carbon dioxide and other greenhouse gases
Creators: name: Raychaudhuri, Barun
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Biophysics
Space Science
Physical Sciences not elsewhere classified
Medicine
Biotechnology
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Science Policy

description: This article reviews the spectroscopic principles related to three established satellite-based systems for global greenhouse gas monitoring, namely Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY), Greenhouse Gases Observing Satellite (GOSAT) and Orbiting Carbon Observatory (OCO) series. It reveals that the worldwide endeavor of atmospheric carbon dioxide (CO2) and other greenhouse gas measurements have not only alerted mankind about the climate hazards but also have enriched basic physical science, especially spectroscopy that need more elucidation. This review points out that the technology of remote sensing of trace gases has achieved several radically new dimensions in science research, such as the shift from in situ chemical analysis to distant spectroscopic measurements and development of space-borne hyperspectral observation systems. It has implemented fundamentally new spectroscopic techniques, namely double-pendulum interferometer and imaging spectroscopy, and executed novel statistical procedures for assessing atmospheric radiative absorption. New avenues are opened, such as implementing differential optical absorption spectroscopy from space and assessing solar-induced chlorophyll fluorescence at global level. In brief, this review highlights several new spectroscopic applications of the known physical principles that were conceptualized in course of developing the remote sensing systems for atmospheric CO2 and other greenhouse gases.
Shear behaviour of concrete bond in structural repairs under fatigue loading
Creators: name: Suchta, Joanna Alice
Publisher: name: University of British Columbia
Year: 2020

description: A significant portion of concrete infrastructure in North America is deteriorating and will require repair or rehabilitation action in the near future. An effective repair can be jeopardized by a bond which is unable to withstand the subjected loading and durability conditions. Fatigue loads are a cause of structural concrete deterioration and cracking with respect to service load conditions such as vehicular traffic as well as high amplitude loading events such as earthquakes and storms. Currently the response of cementitious repair interfaces tested under fatigue loading is not comprehensively examined in existing literature. In this study, the modified slant shear cylinder test with different bond plane inclinations was used to experimentally determine the bond strength of composite substrate-repair specimens subjected to monotonic and fatigue loading protocols. The effect of both roughened and near-smooth interfacial profiles is considered, as well as the use of steel fiber reinforcement in the repair material. The associated bond parameters are derived from experimental test results using previously identified predictive models and failure envelopes for concrete interfaces. 2D Digital Image Correlation (DIC) is additionally used to examine strain distributions on the surface of slant shear specimens prior to failure. A discussion on the degradation of the adhesive bonding mechanism is presented and the resulting implications on bond strength and bond parameters are examined. The interfacial bond investigation is complemented with a discussion on the limitations of the employed predictive models as well as a review of relevant code provisions and research guidelines pertaining to interfacial shear bond subject to cyclic and fatigue loads.
X-ray emission from O-type stars : DH Cep and HD 97434
Creators: name: Bhatt, Himali
name: Pandey, J. C.
name: Kumar, Brijesh
name: Sagar, Ram
name: Singh, K. P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present X-ray emission characteristics of the massive O-type stars DH Cep and HD 97434 using archival XMM-Newton observations. There is no convincing evidence for short term variability in the X-ray intensity during the observations. However, the analysis of their spectra reveals X-ray structure being consistent with two-temperature plasma model. The hydrogen column densities derived from X-ray spectra of DH Cep and HD 97434 are in agreement with the reddening measurements for their corresponding host clusters NGC 7380 and Trumpler 18, indicating that the absorption by stellar wind is negligible. The X-ray emission from these hot stars is interpreted in terms of the standard instability-driven wind shock model.
description: 13 pages ; 2 figures; 2 tables (Accepted for publication in New Astronomy)
So quello che faccio
Creators: name: Gianferrari, Silvia
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2018

description: Questa ricerca si propone di svolgere un percorso per promuovere una gestione positiva della classe, dove i bambini siano coinvolti consapevolmente sui comportamenti positivi da assumere. L’intenzione di questa ricerca è di indagare se un lavoro del genere può avere degli effetti sul clima di classe e in particolare su quattro bambini con difficoltà comportamentali. Sono stati utilizzati i seguenti strumenti di raccolta dati: diario, questionari, interviste semistrutturate e tabelle autovalutative. Il percorso è stato svolto in una seconda elementare di 17 bambini. Dopo aver introdotto uno strumento visivo (una chiocciola di peluche che ha la possibilità di allungarsi quando percepisce un clima positivo in classe) e averne discusso con i bambini, abbiamo iniziato a lavorare tenendolo come “segnale” che ci mostrasse come proseguiva la giornata. Analizzando i dati raccolti con un diario di osservazione, dei questionari, delle interviste semi-strutturate e delle tabelle autovalutative, emerge che il percorso ha migliorato il clima di classe e ha favorito una gestione positiva del gruppo, in particolare dei bambini con difficoltà. Un’attenta analisi dei dati su quattro bambini focus mostra come due di essi hanno effettivamente iniziato ad essere più consapevoli e riflessivi rispetto ai comportamenti adeguati da assumere in classe, mentre per gli altri due non si sono notate delle modifiche significative. Relatrice: Sara Benini
title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð¾Ð² ÑÑÐ°Ð±Ð¸Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð´Ð²ÑÑ ÐºÐ¾Ð»ÐµÑÐ½Ð¾Ð³Ð¾ Ð±Ð°Ð»Ð°Ð½ÑÐ¸ÑÑÑÑÐµÐ³Ð¾ ÑÐ¾Ð±Ð¾ÑÐ°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Study of two-wheeled balancing robot stabilization algorithms
Creators: name: ÐÑÑÐ½ÑÐ½ÐºÐ¸Ð½, ÐÐ¸ÐºÐ¸ÑÐ°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: Ð´Ð²ÑÑ ÐºÐ¾Ð»ÐµÑÐ½ÑÐ¹ Ð±Ð°Ð»Ð°Ð½ÑÐ¸ÑÑÑÑÐ¸Ð¹ ÑÐ¾Ð±Ð¾Ñ
Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ
ÑÐ¸ÑÑÐµÐ¼Ð° Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ
Ð½ÐµÐ»Ð¸Ð½ÐµÐ¹Ð½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð°
Ð¿Ð¸Ð´-ÑÐµÐ³ÑÐ»ÑÑÐ¾Ñ
Ð»Ð¸Ð½ÐµÐ¹Ð½Ð¾-ÐºÐ²Ð°Ð´ÑÐ°ÑÐ¸ÑÐ½ÑÐ¹ ÑÐµÐ³ÑÐ»ÑÑÐ¾Ñ
Ð¾Ð±ÑÐ°ÑÐ½Ð°Ñ ÑÐ²ÑÐ·Ñ Ð¿Ð¾ ÑÐ¸Ð»Ðµ
Ð²ÐµÐºÑÐ¾Ñ ÑÐ¸Ð»Ñ
two-wheel balancing robot
mathematical model
automatic control system
nonlinear system
pid-controller
linear-quadratic controller
force feedback
force vector

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ñ ÑÑÐ°Ð±Ð¸Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð´Ð²ÑÑÐºÐ¾Ð»ÐµÑÐ½Ð¾Ð³Ð¾ Ð±Ð°Ð»Ð°Ð½ÑÐ¸ÑÑÑÑÐµÐ³Ð¾ ÑÐ¾Ð±Ð¾ÑÐ°. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ ÑÐµÐ³ÑÐ»ÑÑÐ¾ÑÑ, Ð¿ÑÐ¸Ð¼ÐµÐ½ÑÐµÐ¼ÑÐµ Ð´Ð»Ñ ÑÑÐ°Ð±Ð¸Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¿Ð¾Ð´Ð¾Ð±Ð½ÑÑ ÑÐ¸ÑÑÐµÐ¼, Ð²ÑÐ²ÐµÐ´ÐµÐ½Ð° Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð´Ð²ÑÑÐºÐ¾Ð»ÐµÑÐ½Ð¾Ð³Ð¾ Ð±Ð°Ð»Ð°Ð½ÑÐ¸ÑÑÑÑÐµÐ³Ð¾ ÑÐ¾Ð±Ð¾ÑÐ°. Ð Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð´Ð¾Ð±Ð°Ð²Ð»ÐµÐ½Ñ Ð»Ð¸Ð½ÐµÐ¹Ð½Ð¾-ÐºÐ²Ð°Ð´ÑÐ°ÑÐ¸ÑÐ½ÑÐ¹ Ð¸ ÐÐÐ ÑÐµÐ³ÑÐ»ÑÑÐ¾ÑÑ. ÐÐ¾ÑÑÑÐ¾ÐµÐ½Ð° Ð¼Ð¾Ð´ÐµÐ»Ñ ÑÐ¾Ð±Ð¾ÑÐ° Ð² ÑÑÐµÐ´Ðµ ADAMS VIEW. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐ¸Ð», Ð´ÐµÐ¹ÑÑÐ²ÑÑÑÐ¸Ñ Ð½Ð° ÐºÐ¾ÑÐ¿ÑÑ ÑÐ¾Ð±Ð¾ÑÐ°. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÐ¹ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼ ÑÑÐ°Ð±Ð¸Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸.
description: In this paper, we consider algorithms for stabilizing a two-wheel balancing robot. The main regulators used to stabilize such systems are considered, a mathematical model of a two-wheel balancing robot is derived. Linear quadratic and PID controllers are added to the model. The model of the robot was built in the ADAMS VIEW environment. The analysis of the forces acting on the body of the robot. A proprietary stabilization algorithm has been developed with a force feedback loop.
La scuola in ospedale e l'istruzione domiciliare: pratiche pedagogiche nel contesto ticinese
Creators: name: Pedroli, Michela
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2024
Subjects: scuola in ospedale
istruzione domiciliare
approccio multiprospettico
flessibilità
inclusione

description: Tra le proposte formative differenziate, presenti accanto alla scuola tradizionale, esistono la scuola in ospedale e domiciliare. Tali servizi sono parte integrante del processo di cura dei minori interessati e mirano a favorire la continuità scolastica e il ritorno alla classe di appartenenza (Kanizsa & Mariani, 2023). Mediante una ricerca qualitativa, caratterizzata da interviste rivolte ad attori coinvolti, lo studio mira a descrivere le pratiche pedagogiche proposte in questo ambito nel Canton Ticino. Dall’analisi dei dati, emerge una grande sensibilità al tema, benché lo stesso non sia molto documentato. Sul territorio è attiva una rete interdisciplinare nella quale professionisti dell’istituzione pubblica e fondazioni di pubblica utilità collaborano con gli operatori socio-sanitari a beneficio dei giovani pazienti e dei loro famigliari. Ruoli diversi ma di pari importanza che, facendo capo a competenze professionali e socio-emotive, contribuiscono a prendersi cura della persona e dei suoi bisogni evolutivi, personalizzando il percorso educativo e ristabilendo forme di collegamento e mediazione con il gruppo classe. Lungi dall’essere esaustivo, cosciente dei limiti dettati dalla delicatezza della tematica e dal tipo di campionamento, il presente lavoro può contribuire a rendere ciascun docente più consapevole nei riguardi di una realtà che potrebbe coinvolgerlo e che concorre ad offrire un’educazione inclusiva, equa e di qualità. Relatore: Giancarlo Gola.
Quantum correlation and classical correlation dynamics in the spin-boson model
Creators: name: Ge, Rong-Chun
name: Gong, Ming
name: Li, Chuan-Feng
name: Xu, Jin-Shi
name: Guo, Guang-Can
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the quantum correlation and classical correlation dynamics in a spin-boson model. For two different forms of spectral density, we obtain analytical results and show that the evolutions of both correlations depend closely on the form of the initial state. At the end of evolution, all correlations initially stored in the spin system transfer to reservoirs. It is found that for a large family of initial states, quantum correlation remains equal to the classical correlation during the course of evolution. In addition, there is no increase in the correlations during the course of evolution.
description: 10 pages, 5 figures
Antiferromagnetic ordering in EuPtGe$_3$ single crystal
Creators: name: Kumar, Neeraj
name: Das, Pranab Kumar
name: Kulkarni, Ruta
name: Thamizhavel, A.
name: Dhar, S. K.
name: Bonville, P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The magnetic properties of single crystalline EuPtGe$_3$, crystallizing in the non-centrosymmetric BaNiSn$_3$-type crystal structure, have been studied by means of magnetisation, electrical resistivity, heat capacity and $^{151}$Eu Mössbauer spectroscopy. The susceptibility and heat capacity data indicate a magnetic transition at $T_{\rm N}$ = 11\,K. The Mössbauer data confirm this conclusion, but evidence a slight first order character of the transition. Analysing the magnetisation data using a mean field model with two antiferromagnetically coupled sublattices allows to explain some aspects of the magnetic behaviour, and to derive the first and second neighbour exchange integrals in EuPtGe$_3$.
description: 6 pages, 7 figures
Additional file 1 of Age-specific association of stage of hypertension at diagnosis with cardiovascular and all-cause mortality among elderly patients with hypertension: a cohort study
Creators: name: Wu, Jingyi
name: Han, Xiaojie
name: Sun, Di
name: Zhang, Jie
name: Li, Jiong
name: Qin, Guoyou
name: Deng, Wei
name: Yu, Yongfu
name: Xu, Huilin
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional File:
The targum (1886:Jan. 22)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1886

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
The targum (1886:May 1 - 1886:May 21)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1886

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
Functional renormalization group approach to correlated fermion systems
Creators: name: Metzner, Walter
name: Salmhofer, Manfred
name: Honerkamp, Carsten
name: Meden, Volker
name: Schoenhammer, Kurt
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Numerous correlated electron systems exhibit a strongly scale-dependent behavior. Upon lowering the energy scale, collective phenomena, bound states, and new effective degrees of freedom emerge. Typical examples include (i) competing magnetic, charge, and pairing instabilities in two-dimensional electron systems, (ii) the interplay of electronic excitations and order parameter fluctuations near thermal and quantum phase transitions in metals, (iii) correlation effects such as Luttinger liquid behavior and the Kondo effect showing up in linear and non-equilibrium transport through quantum wires and quantum dots. The functional renormalization group is a flexible and unbiased tool for dealing with such scale-dependent behavior. Its starting point is an exact functional flow equation, which yields the gradual evolution from a microscopic model action to the final effective action as a function of a continuously decreasing energy scale. Expanding in powers of the fields one obtains an exact hierarchy of flow equations for vertex functions. Truncations of this hierarchy have led to powerful new approximation schemes. This review is a comprehensive introduction to the functional renormalization group method for interacting Fermi systems. We present a self-contained derivation of the exact flow equations and describe frequently used truncation schemes. Reviewing selected applications we then show how approximations based on the functional renormalization group can be fruitfully used to improve our understanding of correlated fermion systems.
description: Review article, final version, 59 pages, 28 figures
Scalar products of the open XYZ chain with non-diagonal boundary terms
Creators: name: Yang, Wen-Li
name: Chen, Xi
name: Feng, Jun
name: Hao, Kun
name: Wu, Ke
name: Yang, Zhan-Ying
name: Zhang, Yao-Zhong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: With the help of the F-basis provided by the Drinfeld twist or factorizing F-matrix of the eight-vertex solid-on-solid (SOS) model, we obtain the determinant representations of the scalar products of Bethe states for the open XYZ chain with non-diagonal boundary terms. By taking the on shell limit, we obtain the determinant representations (or Gaudin formula) of the norms of the Bethe states.
description: Latex file, 28 pages
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐµÐ¶Ð¸Ð¼Ð¾Ð² ÑÐ°Ð±Ð¾ÑÑ ÐºÐ»ÑÑÐµÐ²Ð¾Ð³Ð¾ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð·Ð²ÑÐºÐ¾Ð²Ð¾Ð¹ ÑÐ°ÑÑÐ¾ÑÑ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ 1 ÐºÐÑ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Development and analysis of the operating modes of a 1 kW key audio frequency amplifier
Creators: name: Ð§ÑÐ¿ÑÐ¸Ð½ÑÐºÐ¸Ð¹, Ð¡ÑÐ°Ð½Ð¸ÑÐ»Ð°Ð²
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð·Ð²ÑÐºÐ¾Ð²Ð¾Ð¹ ÑÐ°ÑÑÐ¾ÑÑ
ÐºÐ»Ð°ÑÑ A
ÐºÐ»Ð°ÑÑ Ð
ÐºÐ»Ð°ÑÑ AB
ÐºÐ»Ð°ÑÑ D
ÑÐ¸ÑÐ¾ÑÐ½Ð¾-Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ½Ð°Ñ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ñ
ÐºÐ»ÑÑ
Ð¾ÐºÐ¾Ð½ÐµÑÐ½ÑÐ¹ ÐºÐ°ÑÐºÐ°Ð´
ÑÐ¸Ð»ÑÑÑ.
audio amplifier
class A
class B
class AB
class D
pulse width modulation
key
end cascade
filter

description: ÐÐ° 41 Ñ., 22 ÑÐ¸ÑÑÐ½ÐºÐ°, 2 ÑÐ°Ð±Ð»Ð¸ÑÑ, 0 Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ð¹ Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ ÑÐµÐ¶Ð¸Ð¼Ñ ÑÐ°Ð±Ð¾ÑÑ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»ÐµÐ¹ Ð² ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÐºÐ»Ð°ÑÑÐ°Ñ ÑÑÐ¸Ð»ÐµÐ½Ð¸Ñ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¸Ñ ÐºÐ°ÑÐµÑÑÐ²ÐµÐ½Ð½ÑÐµ Ð¸ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð° Ð·Ð°Ð´Ð°ÑÐ° Ð½Ð° ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð¸Ðµ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹ Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÑ ÐºÐ»ÑÑÐµÐ²Ð¾Ð³Ð¾ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð·Ð²ÑÐºÐ¾Ð²Ð¾Ð¹ ÑÐ°ÑÑÐ¾ÑÑ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ 1ÐºÐÑ ÑÐ°Ð±Ð¾ÑÐ°ÑÑÐµÐ³Ð¾ Ð² ÐºÐ»Ð°ÑÑÐµ D. ÐÑÐ¸ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð¸Ð¸ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð¸ Ð·Ð°ÑÑÐ¾Ð½ÑÑÑ Ð²Ð¾Ð¿ÑÐ¾ÑÑ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¸ÑÐ¾ÑÐ½Ð¾-Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ð¸, ÑÐ°Ð±Ð¾ÑÑ Ð¿Ð¾Ð»ÑÐ¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¸ÐºÐ¾Ð²ÑÑ Ð¿ÑÐ¸Ð±Ð¾ÑÐ¾Ð² Ð² ÑÐµÐ¶Ð¸Ð¼Ðµ ÐºÐ»ÑÑÐ°, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð²Ð¸Ð´Ñ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ½ÑÑ ÑÐµÐ¶Ð¸Ð¼Ð¾Ð². Ð ÑÐ¾Ð´Ðµ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ ÑÑÐµÐ±ÑÐµÐ¼Ð¾Ð³Ð¾ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð° Ð±ÑÐ»Ð° ÑÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð° ÑÑÑÑÐºÑÑÑÐ½Ð°Ñ ÑÑÐµÐ¼Ð° ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ, Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½ ÑÐ°ÑÑÑÑ Ð¾ÐºÐ¾Ð½ÐµÑÐ½Ð¾Ð³Ð¾ ÐºÐ°ÑÐºÐ°Ð´Ð° Ð¸ Ð²ÑÑÐ¾Ð´Ð½Ð¾Ð³Ð¾ ÑÐ¸Ð»ÑÑÑÐ°.
description: 41 pages, 22 figures, 2 tables, 0 annexes The modes of operation of amplifiers in various classes of amplification, as well as their quality and energy characteristics are considered. During the development of the required device, the amplifier amplifier circuit was formed, the final stage and the output filter were calculated.
title: ÐÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ Ð¼ÐµÑÐ¾Ð´Ð° Ð¸Ð½Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ½Ð¾Ð¹ Ð¾Ð±Ð¼ÐµÐ½Ð½Ð¾Ð¹ ÑÐµÐ¾ÑÐ¸Ð¸ Ð²Ð¾Ð·Ð¼ÑÑÐµÐ½Ð¸Ð¹ (ÐÐÐ¢Ð) Ð´Ð»Ñ ÑÐ°ÑÑÑÑÐ° ÑÐµÑÐµÐ½Ð¸Ð¹ ÑÐµÐ°ÐºÑÐ¸Ð¹ ÑÑÐ¾Ð»ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ñ Ð°ÑÐ¾Ð¼Ð½ÑÑ ÑÐ°ÑÑÐ¸Ñ Ñ Ð¿ÐµÑÐµÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸ÐµÐ¼ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð¾Ð² Ð¼ÐµÐ¶Ð´Ñ ÑÑÐ°Ð»ÐºÐ¸Ð²Ð°ÑÑÐ¸Ð¼Ð¸ÑÑ ÑÐ°ÑÑÐ¸ÑÐ°Ð¼Ð¸
title: Ð½Ð°ÑÑÐ½ÑÐ¹ Ð´Ð¾ÐºÐ»Ð°Ð´
titleType: Subtitle
title: Application of the method of invariant exchange perturbation theory (IEPT) for calculating the cross sections for the collision of atomic particles with the redistribution of electrons between the colliding particles
Creators: name: ÐÐ²ÑÑÐ°ÑÑÐµÐ², ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: ÐÐ¾Ð·Ð¼ÑÑÐµÐ½Ð¸Ð¹ ÑÐµÐ¾ÑÐ¸Ñ
Ð¾Ð±Ð¼ÐµÐ½Ð½ÑÐµ ÑÑÑÐµÐºÑÑ
Ð°Ð½ÑÐ¸ÑÐ¸Ð¼Ð¼ÐµÑÑÐ¸Ð·Ð°ÑÐ¸Ñ
Ð´Ð¸ÑÑÐµÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½Ð¾Ðµ ÑÐµÑÐµÐ½Ð¸Ðµ
ÑÐµÐ°ÐºÑÐ¸Ñ Ð¿ÐµÑÐµÐ·Ð°ÑÑÐ´ÐºÐ¸
exchange effects
antisymmetrization
differential cross section
charge exchange reaction

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°Ð·Ð²Ð¸ÑÑÐ¹ Ð½Ð° ÑÐ»ÑÑÐ°Ð¹ Ð½ÐµÑÑÐ°ÑÐ¸Ð¾Ð½Ð°ÑÐ½ÑÑ Ð²Ð¾Ð·Ð¼ÑÑÐµÐ½Ð¸Ð¹ ÑÐ¾ÑÐ¼Ð°Ð»Ð¸Ð·Ð¼ ÐÐ¢Ð Ð¿ÑÐ¸Ð¼ÐµÐ½ÑÐµÑÑÑ Ð´Ð»Ñ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² ÑÐ°ÑÑÐµÑÐ½Ð¸Ñ ÑÐ»Ð¾Ð¶Ð½ÑÑ ÑÐ°ÑÑÐ¸Ñ Ñ ÑÑÑÑÐ¾Ð¼ Ð¼ÐµÐ¶ÑÐµÐ½ÑÑÐ¾Ð²Ð¾Ð³Ð¾ Ð¾Ð±Ð¼ÐµÐ½Ð° ÑÐ¾Ð¶Ð´ÐµÑÑÐ²ÐµÐ½Ð½ÑÐ¼Ð¸ ÑÐ°ÑÑÐ¸ÑÐ°Ð¼Ð¸, ÑÐ¾ÑÑÐ°Ð²Ð»ÑÑÑÐ¸Ð¼Ð¸ ÑÑÐ°Ð»ÐºÐ¸Ð²Ð°ÑÑÐ¸ÐµÑÑ ÑÐ°ÑÑÐ¸ÑÑ.
description: In this paper, the EPT formalism developed for the case of nonstationary perturbations is used to describe the scattering processes of complex particles, taking into account the center-to-center exchange of identical particles that make up the colliding particles.
Herschel observations of ortho- and para-oxidaniumyl (H2O+) in spiral arm clouds toward Sgr B2(M)
Creators: name: Schilke, P.
name: Comito, C.
name: Mueller, H. S. P.
name: Bergin, E. A.
name: Herbst, E.
name: Lis, D. C.
name: Neufeld, D. A.
name: Phillips, T. G.
name: Bell, T. A.
name: Blake, G. A.
name: Cabrit, S.
name: Caux, E.
name: Ceccarelli, C.
name: Cernicharo, J.
name: Crockett, N. R.
name: Daniel, F.
name: Dubernet, M. -L.
name: Emprechtinger, M.
name: Encrenaz, P.
name: ~Gerin, M.
name: Giesen, T. F.
name: Goicoechea, J. R.
name: Goldsmith, P. F.
name: Gupta, H.
name: Joblin, C.
name: Johnstone, D.
name: Langer, W. D.
name: Latter, W. B.
name: Lord, S. D.
name: Maret, S.
name: Martin, P. G.
name: Melnick, G. J.
name: Menten, K. M.
name: Morris, P.
name: Murphy, J. A.
name: Ossenkopf, V.
name: Pagani, L.
name: Pearson, J. C.
name: Perault, M.
name: Plume, R.
name: Qin, S. -L.
name: Salez, M.
name: Schlemmer, S.
name: Stutzki, J.
name: Trappe, N.
name: van der Tak, F. F. S.
name: Vastel, C.
name: Wang, S.
name: Yorke, H. W.
name: Yu, S.
name: Erickson, N.
name: Maiwald, F. W.
name: Kooi, J.
name: Karpov, A.
name: Zmuidzinas, J.
name: Boogert, A.
name: Schieder, R.
name: Zaal, P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: H2O+ has been observed in its ortho- and para- states toward the massive star forming core Sgr B2(M), located close to the Galactic center. The observations show absorption in all spiral arm clouds between the Sun and Sgr B2. The average o/p ratio of H2O+ in most velocity intervals is 4.8, which corresponds to a nuclear spin temperature of 21 K. The relationship of this spin temperature to the formation temperature and current physical temperature of the gas hosting H2O+ is discussed, but no firm conclusion is reached. In the velocity interval 0 to 60 km/s, an ortho/para ratio of below unity is found, but if this is due to an artifact of contamination by other species or real is not clear.
description: A&A, HIFI special issue, accepted
Rational approximations for values of the digamma function and a denominators conjecture
Creators: name: Pilehrood, Khodabakhsh Hessami
name: Pilehrood, Tatiana Hessami
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: In 2007, A.I.Aptekarev and his collaborators discovered a sequence of rational approximations to Euler's constant $γ$ defined by a linear recurrence. In this paper, we generalize this result and present an explicit construction of rational approximations for the numbers $\ln(b)-ψ(a+1),$ $a, b\in {\mathbb Q},$ $b>0, a>-1,$ where $ψ$ defines the logarithmic derivative of the Euler gamma function. We prove exact formulas for denominators and numerators of the approximations in terms of hypergeometric sums. As a consequence, we get rational approximations for the numbers $π/2\pmγ.$ We compare the results obtained with those of T. Rivoal for the numbers $γ+\ln(b)$ and prove denominators conjectures proposed by Rivoal for denominators of rational approximations for $γ+\ln(b)$ and common denominators of simultaneous approximations for the numbers $γ$ and $ζ(2)-γ^2.$
description: 19 pages, in Russian
EFFECT OF COVID-19 ON AIR PASSENGERS’ TRAVEL PREFERENCE AND SATISFACTION DURING PRE AND CURRENT PANDEMIC.pdf
Creators: name: Mahalakshmi, Arumugam
name: N, Pranathi S
Publisher: name: figshare
Year: 2021
Subjects: subject: 150701 Air Transportation and Freight Services
subject: FOS: Economics and business
subject: 150301 Business Information Management (incl. Records, Knowledge and Information Management, and Intelligence)
subject: 150501 Consumer-Oriented Product or Service Development
subject: 159999 Commerce, Management, Tourism and Services not elsewhere classified
subject: 150499 Commercial Services not elsewhere classified
subject: 150601 Impacts of Tourism
subject: 150606 Tourist Behaviour and Visitor Experience

description: With the outbreak of a pandemic and lockdown imposed in most of the countries around the globe, the Indian industry was affected badly. Even after the resumption of air travel, passengers foresee certain serious threats due to new COVID strains and hence refraining themselves from undertaking frequent air travel. A study on air passengers’ preference during the present life-threatening situation is a need of the hour. The present study focuses mainly on how air passengers’ preference towards air travel has changed during this outbreak and their opinion about the importance given to the preventive measures adopted at Indian airports. Primary data was collected through an online survey. On analyzing the responses collected from a sample of 60 air passengers, it has been found that air passengers have low satisfaction regarding the preventive measures implemented in Indian airports during the pandemic. They were found to be less satisfied with the facilities provided at airports before the pandemic. The results of the study indicated that fliers’ preference towards air travel has changed due to the COVID-19 pandemic and much importance has been felt by them about wearing masks and gloves compared to social distancing and most of the respondents were in the age group of 18-25 and the majority prefer to travel by flight for study purpose.
$J/Ψ$ mass shift and $J/Ψ$-nuclear bound state
Creators: name: Tsushima, K.
name: Lu, D. H.
name: Krein, G.
name: Thomas, A. W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We calculate mass shift of the $J/Ψ$ meson in nuclear matter arising from the modification of $DD, DD^*$ and $D^*D^*$ meson loop contributions to the $J/Ψ$ self-energy. The estimate includes the in-medium $D$ and $D^*$ meson masses consistently. The $J/Ψ$ mass shift (scalar potential) calculated is negative (attractive), and complementary to the attractive potential obtained from the QCD color van der Waals forces. Some results for the $J/Ψ$-nuclear bound state energies are also presented.
description: 6 pages, talk given at "T(r)opical QCD II", September 26 - October 1, 2010, Cairns, Australia
Wireless Sensor Network for a Radon Concentration Measurement System
Creators: name: Guatieri, Stefano
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2012

description: Wireless sensor networks for environmental studies are the new frontier, extending monitoring capability in a cost effective and sustainable way, opening up possibilities of verifying and applying models and possibly leading to more reliable forecast, risk mitigation and action plans. The measurement of radon concentration can also benefit from this concept, both for a large area network for outdoor and indoor measurements and for setting up local clusters of instruments for correlated monitoring in buildings with complex architecture, typically with public access (e.g. schools, hospitals, bank agencies). In the latter case, simultaneous hourly measurements in different rooms can help to spot and optimize remediation actions, often proceeding through an optimal tuning of the ventilation systems. This thesis reports the architecture of a wireless module dedicated to the RADIM5b instrument, a low cost, high sensitivity instrument developed by JP-SMM, a Prague-based company
Realtà e rappresentazione in rete
Creators: name: Cameroni, Martina
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2016

description: Il progressivo affermarsi dei nuovi media ha cambiato non solo le abitudini di intere generazioni che vivono ormai costantemente connesse, ma anche il modo di trovare e accedere a contenuti di vario tipo. Anche la scuola deve adeguarsi alle nuove possibilità di apprendimento dei ragazzi e ai cambiamenti in atto nella società, educando gli allievi ad un uso consapevole delle tecnologie ed aiutandoli a muoversi con maggiore sicurezza e consapevolezza in questo complesso mondo. Il presente lavoro si inserisce dunque nell’ambito dell’educazione ai media. Attraverso un itinerario didattico svolto in una classe di prima media, si è voluto riflettere sul modo in cui vari aspetti ci appaiono sul web e come li percepiamo invece dall’esperienza diretta. Oltre alla tematica della rappresentazione della realtà in rete, si è ragionato anche sul processo di selezione delle informazioni e sull’affidabilità delle fonti. Il metodo utilizzato nella presente ricerca è di tipo qualitativo: oltre all’osservazione a bassa strutturazione e alla conseguente descrizione delle attività svolte in classe, ai ragazzi sono stati sottoposti due questionari da compilare in maniera anonima, uno all’inizio e uno alla fine dell’itinerario. Il percorso didattico ha permesso di raggiungere dei risultati soddisfacenti in classe, e gli alunni hanno dimostrato grande interesse e curiosità per gli argomenti trattati, cogliendone gli aspetti principali nonostante la complessità della tematica. Relatore: Luca Botturi. Materia: tecnologie dell'informazione e della comunicazione (TIC)
title: Ð¥Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸ ÐºÐ»Ð°ÑÑÐ° DE Ð¿ÑÐ¸ ÑÐ°Ð±Ð¾ÑÐµ Ð¾Ñ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ° Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Ð¡haracteristics of the class DE power amplifier with modulation voltage source
Creators: name: ÐÐ°ÑÑÑÐºÐ¸Ð½, ÐÐ¸ÐºÐ¸ÑÐ°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: ÐºÐ»ÑÑÐµÐ²Ð¾Ð¹ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸
ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð¿Ð¾ÑÐµÑÐ¸
Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ð¾Ð½Ð½ÑÐ¹ Ð¸ÑÑÐ¾ÑÐ½Ð¸Ðº Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ
power amplifier
switching losses
modulation voltage source

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¾Ð±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ ÐºÐ»ÑÑÐµÐ²Ð¾Ð¹ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸ ÐºÐ»Ð°ÑÑÐ° DE. Ð¦ÐµÐ»ÑÑ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¸ ÑÐ¿ÐµÐºÑÑÐ°Ð»ÑÐ½ÑÑ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸ ÐºÐ»Ð°ÑÑÐ° DE Ð¿ÑÐ¸ ÑÐ°Ð±Ð¾ÑÐµ Ð¾Ñ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ° Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¿ÑÐ¾Ð²ÐµÐ´ÑÐ½Ð½Ð¾Ð³Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð°Ð½Ð°Ð»Ð¸ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¸ Ð¸Ð¼Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸ ÑÐ¿ÐµÐºÑÑÐ°Ð»ÑÐ½ÑÑ Ð¸ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸ ÐºÐ»Ð°ÑÑÐ° DE Ð¾Ñ ÑÑÐ´Ð° Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² ÐºÐ°Ðº ÑÐ°Ð¼Ð¾Ð³Ð¾ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ, ÑÐ°Ðº Ð¸ ÑÐ¸Ð³Ð½Ð°Ð»Ð°.
description: In this paper, the object of research is a class DE power amplifier. The purpose of the research is the energy and spectral characteristics of the class DE power amplifier with modulation voltage source. These characteristics are obtained for both the analytical model and simulation.
Lorentz-preserving fields in Lorentz-violating theories
Creators: name: Ganguly, Oindrila
name: Gangopadhyay, Debashis
name: Majumdar, Parthasarathi
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We identify a fairly general class of field configurations (of spins 0, 1/2 and 1) which preserve Lorentz invariance in effective field theories of Lorentz violation characterized by a constant timelike vector. These fields concomitantly satisfy the equations of motion yielding cubic dispersion relations similar to those found earlier. They appear to have prospective applications in inflationary scenarios.
description: 6 pages Latex2e, no figures, paper body modified, new references added
Detailed characterization of unconditional convergence and invertibility of multipliers
Creators: name: Stoeva, Diana T.
name: Balazs, Peter
Publisher: name: arXiv
Year: 2010
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42C15, 47A05, 40A05

description: In this paper we investigate the possibility of unconditional convergence and invertibility of multipliers $M_{m,Φ,Ψ}$ depending on the properties of the sequences $Ψ$,$Φ$ and $m$. We characterize a complete set of conditions for the invertibility and the unconditional convergence of multipliers, and collect those results in tables. We either prove that unconditional convergence and invertibility is not possible, that one or both of these conditions are always the case for the given parameters, or we give examples for the feasible combinations. We give a full list of examples for all conditions.
description: 37 pages
Naammaktunga (“I am well”)! Feeding families and people-food relationships in Kugluktuk, Nunavut : exploring what the lenses of food sovereignty and Indigenous resilience can offer to food system governance
Creators: name: Klady, Rebecca
Publisher: name: University of British Columbia
Year: 2020

description: Despite extremely high costs of living, many people in small, remote communities in the Canadian Arctic appear to be successfully feeding their families. In academic and policy literatures, the food security lens has contributed important knowledge about hunger in the north; however, its emphasis on deficits and problems risks overlooking enabling mechanisms of people-food relationships. Lenses (and their underlying worldviews) have been shown to shape food system governance, including responses to food-related phenomena such as hunger. By exploring the capacities of different lenses (food security, food sovereignty, Indigenous resilience) to characterise key aspects of people-food relationships, this in-depth ethnographic research examines and illustrates their potential impacts on northern food system governance. In order to achieve this, I developed a grassroots, holistic understanding of people-food relationships in the hamlet of Kugluktuk, Nunavut using a modified grounded theory approach. Three key overarching themes emerged: identity, living in relation and power/resources. Individual/collective wellbeing is at the heart of these themes. Food nourishes a sense of ‘self’ and identity, which is foundational to living in relation through (food) sharing, being on the land together, visiting and knowledge transmission. Identity and relationships are shaped by participation in power systems (e.g. local/external institutions) and control of resources (e.g. food, livelihood, governance). The lenses under investigation were then applied to emergent themes, revealing that Indigenous resilience was most capable of representing these. This is the first study of its kind in Nunavut, with several important research findings. Northern food system governance may benefit by continuing to enhance community-level decision-making authority, and acknowledging/enabling peoples’ abilities to successfully feed their families and foster individual/collective wellbeing. Continued focus on mitigating factors –what enables – will likely benefit future food-related policy practice and research, and help recognise and support the strengths, resiliencies and wellbeing of northerners. The complexity and nuance of people-food relationships necessitates consideration of appropriate food lenses, such as those informed by Indigenous and wellbeing practices (e.g. living in relation, reciprocity, occupancy) and scholarship, as well as how these are interpreted (e.g. user perspectives), in order to further enhance northern food system governance.
title: ÐÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ ÑÐ·ÑÐºÐ° SysML
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Designing a control system using SysML
Creators: name: Ð¥Ñ Ð®Ð¹ÑÐ¸Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: ÑÐ¸ÑÑÐµÐ¼Ð½Ð¾Ðµ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹
ÑÐ·ÑÐº SysML
Ð¼ÐµÑÐ¾Ð´ ARCADIA
Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½Ñ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Capella
model-based systems engineering
system modeling language SysML
method ARCADIA
modeling Tool Capella

description: Ð¡Ð¸ÑÑÐµÐ¼Ð½Ð¾Ðµ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹ (MBSE) Ð¸Ð¼ÐµÐµÑ Ð¼Ð½Ð¾Ð³Ð¾ Ð¿ÑÐµÐ¸Ð¼ÑÑÐµÑÑÐ², ÑÐ°ÐºÐ¸Ñ ÐºÐ°Ðº Ð²Ð¸Ð·ÑÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ñ, Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¸Ð·Ð°ÑÐ¸Ñ Ð¸ Ð²ÑÑÐ¾ÐºÐ°Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ, Ð¿ÑÐ¸ ÑÐµÑÐµÐ½Ð¸Ð¸ Ð·Ð°Ð´Ð°Ñ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸Ð¹, ÑÑÐ½ÐºÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¸ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð°ÑÑÐ¸ÑÐµÐºÑÑÑÑ ÑÐ»Ð¾Ð¶Ð½ÑÑ ÑÐ¸ÑÑÐµÐ¼. Ð¡ÑÐ°Ð²Ð½Ð¸Ð²Ð°Ñ Ð¸ Ð¸Ð·ÑÑÐ°Ñ Ð¼ÐµÑÐ¾Ð´ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ, Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð½ÑÐ¹ Ð½Ð° ÑÐ·ÑÐºÐµ SysML Ð¸ Ð¼ÐµÑÐ¾Ð´Ð¾Ð»Ð¾Ð³Ð¸Ð¸ ARCADIA, ÑÑÐ° ÑÑÐ°ÑÑÑ ÑÑÐ¼Ð¼Ð¸ÑÑÐµÑ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ Ð´Ð²ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð² Ð¾Ð±Ð»Ð°ÑÑÐ¸ ÑÐ¸ÑÑÐµÐ¼Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹.
description: Model-based systems engineering (MBSE) has many advantages, such as visualization, materialization and high efficiency, in solving the requirements analysis, functional analysis and architecture design of complex systems. By comparing and studying the modeling method based on SysML language and ARCADIA methodology, this paper summarizes the main features of the two methods in the field of model-based system design.
Theory of Raman Scattering in One-Dimensional Quantum Spin-1/2 Antiferromagnets
Creators: name: Sato, Masahiro
name: Katsura, Hosho
name: Nagaosa, Naoto
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study theoretically the Raman scattering spectra in the one-dimensional (1D) quantum spin-1/2 antiferromagnets. The analysis reveals that their low-energy dynamics is exquisitely sensitive to various perturbations to the Heisenberg chain with nearest-neighbor exchange interactions, such as magnetic anisotropy, longer-range exchange interactions, and bond dimerization. These weak interactions are mainly responsible for the Raman scattering and give rise to different types of spectra as functions of frequency, temperature, and external field. In contrast to the Raman spectra in higher dimensions in which the two-magnon process is dominant, those in 1D antiferromagnets provide much richer information on these perturbations.
description: 5 pages, published version, 3 figures, 2 tables, Revtex
Photonic Data Storage by Electromagnetically Induced Transparency.
Creators: name: Chakraborty, Avirup
Publisher: name: Zenodo
Year: 2021

description: In this project, a study of the theoretical formulation was done by which photonic quantum states can be used to be stored as quantum bits under adiabatic conditions in the form of Polariton fields by the process of Electromagnetically Induced Transparent (EIT) with very high efficiency.
Can Neutron stars constrain Dark Matter?
Creators: name: Kouvaris, Chris
name: Tinyakov, Peter
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We argue that observations of old neutron stars can impose constraints on dark matter candidates even with very small elastic or inelastic cross section, and self-annihilation cross section. We find that old neutron stars close to the galactic center or in globular clusters can maintain a surface temperature that could in principle be detected. Due to their compactness, neutron stars can acrete WIMPs efficiently even if the WIMP-to-nucleon cross section obeys the current limits from direct dark matter searches, and therefore they could constrain a wide range of dark matter candidates.
description: 20 pages, 5 figures
Integrating Out Astrophysical Uncertainties
Creators: name: Fox, Patrick J.
name: Liu, Jia
name: Weiner, Neal
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Underground searches for dark matter involve a complicated interplay of particle physics, nuclear physics, atomic physics and astrophysics. We attempt to remove the uncertainties associated with astrophysics by developing the means to map the observed signal in one experiment directly into a predicted rate at another. We argue that it is possible to make experimental comparisons that are completely free of astrophysical uncertainties by focusing on {\em integral} quantities, such as $g(v_{min})=\int_{v_{min}} dv\, f(v)/v $ and $\int_{v_{thresh}} dv\, v g(v)$. Direct comparisons are possible when the $v_{min}$ space probed by different experiments overlap. As examples, we consider the possible dark matter signals at CoGeNT, DAMA and CRESST-Oxygen. We find that expected rate from CoGeNT in the XENON10 experiment is higher than observed, unless scintillation light output is low. Moreover, we determine that S2-only analyses are constraining, unless the charge yield $Q_y< 2.4 {\, \rm electrons/keV}$. For DAMA to be consistent with XENON10, we find for $q_{Na}=0.3$ that the modulation rate must be extremely high ($\gsim 70%$ for $m_χ= 7\, \gev$), while for higher quenching factors, it makes an explicit prediction (0.8 - 0.9 cpd/kg) for the modulation to be observed at CoGeNT. Finally, we find CDMS-Si, even with a 10 keV threshold, as well as XENON10, even with low scintillation, would have seen significant rates if the excess events at CRESST arise from elastic WIMP scattering, making it very unlikely to be the explanation of this anomaly.
description: 25 pages, 7 figures; v2 replaced with published version