cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A versatile and accurate 2-D solution of finite and infinite extent coplanar waveguide
Creators: name: Dunsmore, Marnie
Publisher: name: University of British Columbia
Year: 2009

description: Two rapidly converging 2-D models are proposed for the CPW static field problem. Numerical solution of the Finite-Extent CPW static field problem yields two singularities, one due to the edge singularity behavior of the charge, and the other due to the Green's function singularity when the source point x and field point x' are coincident. The infinite extent CPW static field problem has both these singularities as well as a Green's function singularity in the limit as the field point x' —>o°. The rapid convergence of these problems is obtained by extracting the Green's function singularities and then treating the charge edge singularities using Gauss-Chebychev quadrature. These models are easily adapted to different dielectric substrate configurations, including, but not confined to conventional free standing CPW and conductor-backed CPW. This is achieved using a complex image space domain Green's function which is both accurate and rapidly converging. Using the complex image Green's function, the extraction of singularities and Gauss-Chebychev quadrature, the Finite-Extent and infinite extent CPW static field problems are solved for the charge distribution, characteristic impedance and effective dielectric constant. The characteristic impedance and effective dielectric constant results are compared against conformal mapping results. The charge distribution results are compared against results obtained from electrooptic sampling. It is demonstrated that the models in this thesis are accurate and show an improvement in convergence time of between one and two orders of magnitude compared to existing CPW models.
ПРОГНОЗ ГИДРАВЛИЧЕСКОЙ ЭФФЕКТИВНОСТИ СНИЖЕНИЯ СОПРОТИВЛЕНИЯ В ТРУБОПРОВОДЕ ПО МОДЕЛЯМ ОТНОСИТЕЛЬНОГО НАПРЯЖЕНИЯ СДВИГА В ДИСКОВОМ ТУРБОРЕОМЕТРЕ
Creators: name: Ташбулатов Радмир Расулевич
name: Валеев Анвар Рашитович
name: Муратова Вера Ивановна
name: Ян Пэн
name: Нечваль Андрей Михайлович
name: Чэнь Ян
Publisher: name: Транспорт и хранение нефтепродуктов и углеводородного сырья
Year: 2020
Subjects: противотурбулентная присадка
снижение гидравлического сопротивления
гидравлическая эффективность
трубопроводный транспорт
дисковый реометр
напряжение сдвига

description: В работе приведены результаты лабораторного тестирования растворов пяти противотурбулентных присадок в диапазоне концентрации 0 = 0-60 ppm в дизельном топливе при различном числе Рейнольдса Re = (3...8)-105. По результатам эффективности снижения сопротивления DR, полученным в ходе опытно-промышленных испытаний трех присадок при перекачке дизельного топлива, разработан метод прогноза гидравлической эффективности снижения сопротивления в трубопроводе по моделям относительного напряжения сдвига в дисковом реометре. На основании данных результатов лабораторного эксперимента и опытно-промышленных испытаний сделан вывод: средняя относительная погрешность предлагаемой расчетной зависимости не превышает 9%.
String-inspired Gauss-Bonnet gravity reconstructed from the universe expansion history and yielding the transition from matter dominance to dark energy
Creators: name: Cognola, Guido
name: Elizalde, Emilio
name: Nojiri, Shin'ichi
name: Odintsov, Sergei D.
name: Zerbini, Sergio
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider scalar-Gauss-Bonnet and modified Gauss-Bonnet gravities and reconstruct these theories from the universe expansion history. In particular, we are able to construct versions of those theories (with and without ordinary matter), in which the matter dominated era makes a transition to the cosmic acceleration epoch. It is remarkable that, in several of the cases under consideration, matter dominance and the deceleration-acceleration transition occur in the presence of matter only. The late-time acceleration epoch is described asymptotically by de Sitter space but may also correspond to an exact $Λ$CDM cosmology, having in both cases an effective equation of state parameter $w$ close to -1. The one-loop effective action of modified Gauss-Bonnet gravity on the de Sitter background is evaluated and it is used to derive stability criteria for the ensuing de Sitter universe.
description: LaTeX20 pages, 4 figures, version to apear in PRD
Estimate of the location of the neutron drip line for calcium isotopes from an exact Hamiltonian with continuum pair correlations
Creators: name: Dassie, A. C.
name: Betan, R. M. Id
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The eastern region of the calcium isotope chain of the nuclei chart is, nowadays, of great activity. The experimental assessment of the limit of stability is of interest to confirm or improve microscopic theoretical models. The goal of this work is to provide the drip line of the calcium isotopes from the exact solution of the pairing Hamiltonian which incorporates explicitly the correlations with the continuum spectrum of energy. The modified Richardson equations, which include correlations with the continuum spectrum of energy modeled by the continuum single particle level density, is used to solve the many-body system. Three models are used, two isospin independent models with core 40Ca and 48Ca, and one isospin dependent model. One and two-neutron separation energies and occupation probabilities for bound and continuum states are calculated from the solution of the Richardson equations. The one particle drip line is found at the nucleus 57Ca, while the two neutron drip line is found at the nucleus 60Ca from the isospin independent model and at 66Ca from the isospin dependent one.
description: 9 pages, 14 figures, 63 references
Understanding Consultation and Engagement with Indigenous Peoples in Resource Development
Creators: name: Boyd, Brendan
name: Lorefice, Sophie
Publisher: name: The School of Public Policy Publications
Year: 2019

description: Canada’s legal system has repeatedly ruled that the Crown has a duty to consult with Indigenous Peoples when approving and shaping resource development projects that are located on their land or could infringe on their rights. But the duty to consult means different things to Indigenous groups, government and industry. Different understandings among stakeholders, in particular Indigenous groups dissatisfaction with consultation, has often led to court challenges of project decisions. Recently, the Federal Court of Appeal’s decision to overturn the federal government’s approval of the Trans Mountain pipeline project in 2018 has attracted the attention of politicians, media and the public. Legal challenges have also occurred over smaller, yet still important, activities and decisions, where Indigenous communities and organizations find formal consultation processes, and the overall approach to engagement taken by industry and government, to be lacking. While these represent a small portion of the total number of cases where the legal duty to consult has been triggered (Newman 2017) they have an outsized impact on the relationships and level of trust between Indigenous Peoples, industry and governments. Finding ways to resolve these conflicts and improve relations can contribute to reconciliation between Indigenous Peoples, non-Indigenous Canadians and the Canadian state and is essential to the future of Canada’s natural resource industries.
description: The School of Public Policy Publications, Vol 12 (2019)
Έννοια του εαυτού, σχέσεις με τους γονείς και γονεϊκή στήριξη κατά την εφηβεία
Creators: name: Μακρή-Μπότσαρη, Εύη
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: The purpose of the study was: (a) To investigate whether relationships with parents define a distinct self-perception domain (b| To investigate whether mother and father are identified as distinct sources of social support within the family environment (c) To examine the development differences of the relationships with parents as well as the development differences of the maternal and the paternal support (b) To examine the relations between the two sources of paternal support on one hand and the two aspects of self-concept self-perception and self esteem on the other hand. The finding with a sample of 410 Greek students in grades six to nine reveled that relationships with parents emerge as a distinct self-perception domain during adolescence and that students can make a clear distinction between maternal and parental support. Furthermore the findings of the study revealed the sex is not a differentiating factor of the level of the relationships with parents neither of the level of maternal and paternal support. In contrast, both the relationships with parents and the parental support decline from elementary to junior high school then showing a gradual leveling out. Among the two sources parental support maternal support bears the strongest relationship to self perception and the self esteem.
description: Παιδαγωγική Επιθεώρηση, Vol. 30 (2000)
Penerapan Media Literasi Karikatur dalam Pengajaran Bahasa bagi Siswa TPQ Al-Hidayah Kelurahan Meruyung Limo Depok
Creators: name: Atmapratiwi, Heppy
name: Wiyanti, Endang
name: Sudrajat, Yayan
Publisher: name: Zenodo
Year: 2023

description: The purpose of community service is to socialize and improve literacy skills in student in order to produce optimal results due to the lack of assistance and training to increase awareness and literacy skills.  Through initial observations and interviews with the Foundation, it was revealed that the students had not fully understood the importance of language literacy in the context of global communication, which resulted in a lack of maturity in oral culture. Therefore, this community service activity aims to enable the students of TPQ Al-Hidayah to integrate language literacy in daily life, increase community knowledge through access to information, and develop a positive attitude towards the interpretation of the information obtained. The results of this service activity include the preparation of materials or studies to help students understand and apply language literacy and measure the learning outcomes of these literacy skills. In addition, the team will create a published article to convey the achievements of this abdimas activity to the wider community, with the hope that the information disseminated can provide significant benefits. Thus, this effort is expected to make an effective contribution in overcoming social problems, especially the education gap in society.
Η έννοια της ποιητικής ιδιοφυΐας στον ελληνικό 19ο αιώνα: η σολωμική poesia moderna
Creators: name: Σπαθαράκης, Κώστας Μιχαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Διονύσιος Σολωμός
Ποιητική ιδιοφυΐα
Dionysios Solomos
Notion of poetic genius

description: Σκοπός της διπλωματικής εργασίας ήταν η διερεύνηση της ιστορίας της έννοιας της ποιητικής ιδιοφυΐας και η εξέταση της διάδοσής της στο χώρο των νεοελληνικών γραμμάτων κατά τον 19ο αιώνα. Η έννοια της ιδιοφυΐας αποτελεί τεκμήριο για τη διάδοση των νεωτερικών λογοτεχνικών προτύπων, καθώς μας αποκαλύπτει μια θεμελιώδη μεταβολή του τρόπου παραγωγής και πρόσληψης του λογοτεχνικού κειμένου, η οποία συνδέεται άμεσα με το γλωσσικό ζήτημα. Στο πρώτο μέρος της εργασίας εκτίθεται συνοπτικά μια γενεαλόγηση της έννοιας της ιδιοφυΐας, από τις απαρχές της στα ερωτήματα που άφησε ανοιχτά η Διαμάχη Αρχαίων και Νεοτέρων μέχρι την κεντρική θέση που κατέχει στην καντιανή αισθητική. Το δεύτερο μέρος επιχειρεί να αναδείξει τη σύνδεση ανάμεσα στην ιδιοφυΐα και την πορεία του σολωμικού έργου, από τα πρώτα λυρικά του Σολωμού, μέχρι τα Προλεγόμενα του Πολυλά, μέσω του Δοκιμίου Καλλιλογίας του Στρατούλη.
description: The aim of the present MA thesis was to study the history of the notion of poetic genius and to map its dispersion in the Greek letters during the 19th century. Genius can help us document the acquisition of modern literary models, as it reveals the crucial change in the production and reception of the literary text, a change essentially connected to the history of the Greek language problem. In the first part of the thesis, we attempt to present the genealogy of the notion of genius, from its origins in the questions left unanswered by the Quarrel of the Ancients and the Moderns, to the central place it holds in Kantian aesthetics. The second part suggests a link between the notion of genius and the progress of Solomos’ poetical work, from his early lyrics, to the Prolegomena by Polylas, through the Dokimion Kallilogias by Stratoulis.
Thermal D-branes States from Superstrings in Light-Cone Gauge
Creators: name: Vancea, Ion V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this talk we are going to review a method to construct the thermal boundary states of the thermal string in the TFD approach. The class of thermal boundary states presented here is derived from the BPS D-branes of the type II GS superstrings.
description: Prepared for Fifth International Conference on Mathematical Methods in Physics, 2006, Rio de Janeiro, Brazil. Brief report on the results from hep-th/0607167
Occlusion-robust Deformable Object Tracking without Physics Simulation
Creators: name: Chi, Cheng
name: Berenson, Dmitry
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Estimating the state of a deformable object is crucial for robotic manipulation, yet accurate tracking is challenging when the object is partially-occluded. To address this problem, we propose an occlusion-robust RGBD sequence tracking framework based on Coherent Point Drift (CPD). To mitigate the effects of occlusion, our method 1) Uses a combination of locally linear embedding and constrained optimization to regularize the output of CPD, thus enforcing topological consistency when occlusions create disconnected pieces of the object; 2) Reasons about the free-space visible by an RGBD sensor to better estimate the prior on point location and to detect tracking failures during occlusion; and 3) Uses shape descriptors to find the most relevant previous state of the object to use for tracking after a severe occlusion. Our method does not rely on physics simulation or a physical model of the object, which can be difficult to obtain in unstructured environments. Despite having no physical model, our experiments demonstrate that our method achieves improved accuracy in the presence of occlusion as compared to a physics-based CPD method while maintaining adequate run-time.
ОПРЕДЕЛЕНИЕ ОПТИМАЛЬНОЙ КОНЦЕНТРАЦИИ ПРОТИВОТУРБУЛЕНТНОЙ ПРИСАДКИ С ПОМОЩЬЮ ДИФФЕРЕНЦИАЛЬНОГО ИСЧИСЛЕНИЯ МАТЕМАТИЧЕСКОГО АНАЛИЗА
Creators: name: Фарухшина Регина Радиковна
name: Нечваль Андрей Михайлович
name: Муратова Вера Ивановна
name: Моисеенко Тарас Алексеевич
Publisher: name: Транспорт и хранение нефтепродуктов и углеводородного сырья
Year: 2020
Subjects: противотурбулентная присадка
гидравлическая эффективность
концентрация присадки
кривая эффективности
оптимизация

description: Введение противотурбулентной присадки в поток перекачиваемой жидкости позволяет не только снизить гидравлическое сопротивление трубопровода, но и благодаря оптимальному ее дозированию повысить энергоэффективность в целом магистрального трубопровода. Представлена методика расчета оптимальной (минимальной) концентрации вводимой противотурбулентной присадки на нескольких перегонах магистрального трубопровода. Приведен пример расчета с обеспечением условий надежной работы трубопроводной системы.
Το επαγγελματικό άγχος των εκπαιδευτικών της Πρωτοβάθμιας Εκπαίδευσης
Creators: name: Λεοντάρη, Αγγελική
name: Κυρίδης, Αργύρης
name: Γιαλαμάς, Βασίλης
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: The aim of the present study was an initial investigation of stress in primary school teachers. The study also sought to determine whether the amount and nature of stress experienced by teachers is related to certain personal and demographic variables. The
It was found that only a relatively small percentage of teachers stated that they experience a high level of stress, while most of them obtained moderate and low mean stress scores. From the independent variables only gender and the area where the school is situated seem to influence stress levels. Female teachers reported higher levels of general stress, and so did teachers working in rural areas. Significant negative correlations were found between stress, self-esteem, Personal and Interpersonal Perceived Control. Overall, the results indicate that personality dimensions appeal to contribute more to stress levels that do the variables of either age or gender.
description: Παιδαγωγική Επιθεώρηση, Vol. 30 (2000)
Gas and Star Formation from HD and Dust Emission in a Strongly Lensed Galaxy
Creators: name: Jones, Gareth C.
name: Maiolino, Roberto
name: Caselli, Paola
name: Carniani, Stefano
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The molecular gas content of high-redshift galaxies is a highly sought-after property. However, H$_2$ is not directly observable in most environments, so its mass is probed through other emission lines (e.g., CO, [CI], [CII]), or through a gas-to-dust ratio. Each of these methods depends on several assumptions, and are best used in parallel. In this work, we extend an additional molecular gas tracer to high-redshift studies by observing hydrogen deuteride (HD) emission in the strongly lensed $z=5.656$ galaxy SPT0346-52 with ALMA. While no HD(1-0) emission is detected, we are able to place an upper limit on the gas mass of $\rm M_{H_2}<6.4\times10^{11} M_{\odot}$. This is used to find a limit on the $\rm L'_{CO}$ conversion factor of $\rmα_{CO}<5.8$ M$_{\odot}$(K km s$^{-1}$ pc$^2$)$^{-1}$. In addition, we construct the most complete spectral energy distribution (SED) of this source to date, and fit it with a single-temperature modified blackbody using the nested sampling code MultiNest, yielding a best-fit dust mass $\rm M_{dust}=10^{8.92\pm0.02}$ M$_{\odot}$, dust temperature $78.6\pm0.5$ K, dust emissivity spectral index $β=1.81\pm0.03$, and star formation rate $\rm SFR=3800\pm100$ M$_{\odot}$ year$^{-1}$. Using the continuum flux densities to estimate the total gas mass of the source, we find $\rm M_{H_2}<2.4\times10^{11}$ M$_{\odot}$, assuming sub-solar metallicity. This implies a CO conversion factor of $\rm α_{CO}<2.2$, which is between the standard values for MW-like galaxies and starbursts. These properties confirm that SPT0346-52 is a heavily starbursting, gas rich galaxy.
description: 11 pages, 6 figures. Accepted for publication in MNRAS
ОЦЕНКА ВОЗМОЖНОСТИ ИСПОЛЬЗОВАНИЯ ВЫСОКОМИНЕРАЛИЗОВАННЫХ ПОДЗЕМНЫХ ВОД НА ОБЪЕКТАХ ТРАНСПОРТА И ХРАНЕНИЯ НЕФТИ И ГАЗА НА ПРИМЕРЕ РЕСПУБЛИКИ БАШКОРТОСТАН
Creators: name: Мастобаев Борис Николаевич
name: Локшин Александр Адольфович
name: Локшина Евгения Александровна
name: Колчин Александр Владимирович
Publisher: name: Транспорт и хранение нефтепродуктов и углеводородного сырья
Year: 2020
Subjects: электродиализ
водоподготовка
подземная вода
высокая минерализация
техническая вода

description: Статья посвящена подготовке высокоминерализованных подземных вод для систем транспорта и хранения нефти и газа на образцах, отобранных на территории Республики Башкортостан. Актуальность статьи обоснована развитием трубопроводного транспорта в целом и общемировым трендом на рациональное использование ресурсов и энергосберегающие технологии. Целью работы является оценка технической применимости метода электродиализной очистки на основе предварительных лабораторных испытаний.
ЭФФЕКТЫ УПРУГОСТИ И ИНЕРЦИИ ЖИДКОСТИ ПРИ ПЕРЕХОДНЫХ ПРОЦЕССАХ В ТРУБОПРОВОДЕ
Creators: name: Коробков Геннадий Евгеньевич
name: Коноплев Николай Геннадьевич
Publisher: name: Транспорт и хранение нефтепродуктов и углеводородного сырья
Year: 2020
Subjects: нестационарный процесс
движение
жидкость
электрогидравлическая аналогия
решение
дифференциальное уравнение
трубопровод
деформация
инерция

description: В настоящей статье дается краткое описание нестационарного процесса запуска системы, обладающей массой, упругостью и вязкостью. Приводятся теоретические зависимости, описывающие колебательный (для непротяженных трубопроводов) или апериодический (для протяженных трубопроводов) процесс деформации жидкости, сопровождающий увеличение скорости всей массы жидкости при запуске насоса. Заложены теоретические основы разработки нового способа перекачки жидкости по трубопроводам.
An asymmetry detected in the disk of Kappa CMa with the AMBER/VLTI
Creators: name: Meilland, Anthony
name: Millour, Florentin
name: Stee, Philippe
name: De Souza, Armando Domiciano
name: Petrov, Romain
name: Mourard, Denis
name: Jankov, Slobodan
name: Robbe-Dubois, Sylvie
name: Spang, Alain
name: Arisitidi, Eric
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Aims. We study the geometry and kinematics of the circumstellar environment of the Be star Kappa CMa in the Br gamma emission line and its nearby continuum. Methods. We use the VLTI/AMBER instrument operating in the K band which provides a spatial resolution of about 6 mas with a spectral resolution of 1500 to study the kinematics within the disk and to infer its rotation law. In order to obtain more kinematical constraints we also use an high spectral resolution Pa beta line profile obtain in December 2005 at the Observatorio do Pico do Dios, Brazil and we compile V/R line profile variations and spectral energy distribution data points from the literature. Results. Using differential visibilities and differential phases across the Br gamma line we detect an asymmetry in the disk. Moreover, we found that kappa CMa seems difficult to fit within the classical scenario for Be stars, illustrated recently by alpha Arae observations, i.e. a fast rotating B star close to its breakup velocity surrounded by a Keplerian circumstellar disk with an enhanced polar wind. Finally we discuss the possibility for kappa CMa to be a critical rotator with a Keplerian rotating disk and try to see if the detected asymmetry can be interpreted within the "one-armed" viscous disk framework.
Η επίδραση της απεργίας στη εργασιακή και ασφαλιστική σχέση
Creators: name: Ζήρδας, Αγγελος Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Απεργία
Εργασιακή σχέση
Ασφαλιστική σχέση
Strike
Employment relationship
Insurance relationship

description: Σκοπός της διπλωματικής διατριβής είναι η ανάλυση του φαινομένου της απεργίας σε σχέση με τις ποικίλες επιδράσεις που προκαλεί στην εργασιακή και ασφαλιστική σχέση. Οι συνέπειες αυτές παρουσιάζονται με άξονα την διάκριση νόμιμης και παράνομης απεργίας. Στη βάση της νόμιμης απεργίας διαπιστώνεται η αναστολή της εργασιακής σχέσης κατά τη διάρκεια της απεργίας και η εξίσωση του χρόνου απεργίας με χρόνο εργασίας αναφορικά με τη θεμελίωση των δικαιωμάτων του εργαζομένου, ενώ τονίζεται και ο κανόνας της απαγόρευσης απολύσεως κατά την διάρκεια της νόμιμης απεργίας. Περαιτέρω εκτίθεται η ιδιαιτερότητα της επίδρασης της απεργίας στην ασφαλιστική σχέση και αναλύεται ο προβληματισμός σχετικά με την διατήρηση ή μη του ασφαλιστικού δεσμού. Σε δεύτερο επίπεδο αποτυπώνονται οι επιδράσεις της παράνομης απεργίας και διευκρινίζεται η εξομοίωση της με την παράνομη αποχή από την εργασία. Προσεγγίζονται, επιπλέον, οι επιπτώσεις της στα δικαιώματα των εργαζομένων, το επιτρεπτό ή μη της καταγγελίας της σχέσης εργασίας και αναλύονται τα ζητήματα ευθύνης του απεργού προς αποζημίωση του εργοδότη από παράνομη απεργία. Στη συνέχεια παρουσιάζεται η δυνατότητα των μερών, εργαζομένων και εργοδότη, να ρυθμίσουν τις συνέπειες της απεργίας με συλλογική σύμβαση εργασίας και ολοκληρώνεται η εκπόνηση της διπλωματικής με την ανάλυση των συνεπειών της απεργίας ως προς τους μη απεργούς.
description: The aim of the MSC’s paper is the analysis of the strike phenomenon in combination with various effects that causes in strike employment and insurance relationship. Those effects can be presented in accordance with diversity among legal and illegal strike. In legal strike is determined the suspension of the employment relation during the strike and the equation of the time of the strike with the employment time in reference with the entitlement of workers during legal strike there is no possibility of firing the individuals. Moreover is crystal clear the uniqueness of the effect of strike in insurance relations and it is analyzed the speculation about the maintenance or not of the insurance relation. In a second level are reflected the effects of illegal strike and is clarified the emulation of the strike with the illegal absence of the workers. There is also an approach of the implication of the workers’ rights, the permission of the contract termination and there is also an analysis about the responsibility of the striker for payment during the illegal strike. Furthermore there is the presentation about the possibility that both parts, workers and the employers, to jointly determine the consequences of the strike with collective agreement. The paper concludes with the analysis of the strikes consequences about the non strikers.
Delay-throughput analysis of inter- and intra-MAN voice and data integrated traffic in IEEE 802.6 MAN based PCN
Creators: name: Wong, William Y. L.
Publisher: name: University of British Columbia
Year: 2009

description: This thesis focuses on a proposed IEEE 802.6 Metropolitan Area Network (MAN) based distributed communication architecture for supporting the Personal Communication Services (PCS). Future-generation telecommunications systems are intended to combine all kinds of networks (wireline or wireless) and services (data, voice, video, graphics, etc.) into one single universal personal communications system. An IEEE 802.6 MAN-based distributed Personal Communication Network (PCN) architecture is introduced in this thesis, and network performance analysis based on this architecture is presented. Isochronous (voice) traffic will be transported by high priority queue-arbitrate (QA) slots instead of by using the more conventional pre-arbitrated (PA) slots. Consequently, the highest priority QA slots will be used to transport signaling traffic while the lowest priority QA slots will be used to transport data traffic. Since analytical models are not available, simulation models have been developed to evaluate the transmission delay of voice and data packets for both inter- and intra-MAN traffic. From these simulation models, nodal transmission delay is found to be depended on the physical location of the transmitting node and traffic levels within the network. Inter-MAN traffic nodal transmission delay is additionally dependent on the connection scheme of homogeneous bridges which interconnect different MANs. With CCITT Q.931 used as the signaling protocol for call setup, the QA access for isochronous traffic (QAAIT) call setup and clearing is simpler and faster than the PA access for isochronous traffic (PAAIT), QA access avoids specific channel allocation and call clearing. Although QAAIT has its advantages in call setup and clearing, its use under light traffic load only is advised. Under heavy traffic loads PAAIT is advised, since the later case provides bounded packet transmission delay at all times by controlling network call access.
Ani Cathedral: The Reconstruction Process of the Largest Building in Ani by Danielle Mikaelian
Creators: name: Danielle Mikaelian
Publisher: name: Zenodo
Year: 2019

description: This paper is by Danielle Mikaelian, a current student at Harvard Law School. It is focused on the Ani Cathedral, ithe largest standing building in Ani, the capital city of medieval Bagratid Armenia. Throughout the centuries, the cathedral, which was originally designed by an architect named Trdat in the 11th century, has crumbled as a result of natural disasters, raids, and cultural conflicts.
ОЦЕНКА БЕЗОПАСНОСТИ ЭКСПЛУАТАЦИИ РЕЗЕРВУАРНОГО ПАРКА НЕФТЕПЕРЕКАЧИВАЮЩИХ СТАНЦИЙ ПРИ ИСПОЛЬЗОВАНИИ СХЕМЫ «ЧЕРЕЗ РЕЗЕРВУАРЫ» С УЧЕТОМ ЯВЛЕНИЯ ПЕРЕТОКА
Creators: name: Габдинуров Руслан Рамилевич
name: Гареев Мурсалим Мухутдинович
Publisher: name: Транспорт и хранение нефтепродуктов и углеводородного сырья
Year: 2020
Subjects: нефтеперекачивающие станции
переток
резервуары
дыхательная арматура

description: Определена производительность закачки/откачки нефти в резервуары различных объемов с учетом перетока из одного резервуара в другой при переключении задвижек. Рассмотрены требования нормативных документов к производительности налива в резервуары. В результате сравнения проектной и фактической закачки/откачки с учетом перетока получены выводы о превышении допустимой производительности закачки и откачки в резервуары. Произведена оценка пропускной способности дыхательной арматуры, скорости движения понтона и скорости потока через приемо-раздаточные патрубки с учетом перетока. На основании полученных данных обоснована необходимость учета явления перетока при проектировании резервуаров и разработке технологических карт эксплуатации резервуаров. Предложена принципиальная конструкция обвязки резервуаров, предотвращающая переток нефти/нефтепродукта при переключении резервуаров.
UV and NIR size of the HI selected low surface brightness galaxies
Creators: name: Cheng, Cheng
name: Du, Wei
name: Xu, Cong Kevin
name: Cao, Tianwen
name: Zhang, Hong-Xin
name: Huang, Jia-Sheng
name: He, Chuan
name: Li, Zijian
name: Wu, Shumei
name: Xu, Hai
name: Dai, Y. Sophia
name: Shao, Xu
name: Musin, Marat
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: How does the low surface brightness galaxies (LSBGs) form stars and assemble the stellar mass is one of the most important questions to understand the LSBG population. We select a sample of 381 HI bright LSBGs with both Far Ultraviolet (FUV) and Near Infrared (NIR) observation to investigate the star formation rate (SFR) and stellar mass scales, and the growth mode. We measure the UV and NIR radius of our sample, which represent the star-forming and stellar mass distribution scales. We also compare the UV and H band radius-stellar mass relation with the archive data, to identify the SFR and stellar mass structure difference between the LSBG population and other galaxies. Since galaxy HI mass has a tight correlation with the HI radius, we can also compare the HI and UV radii to understand the distribution of the HI gas and star formation activities. Our results show that most of the HI selected LSBGs have extended star formation structure. The stellar mass distribution of LSBGs may have a similar structure as the disk galaxies at the same stellar mass bins, while the star-forming activity of LSBGs happens at a larger radius than the high surface density galaxies, which may help to select the LSBG sample from the wide-field deep u band image survey. The HI also distributed at a larger radius, implying a steeper (or no) Kennicutt-Schmidt relation for LSBGs.
description: Accepted by Research in Astronomy and Astrophysics (RAA)
Εκπαίδευση και Μαζική Επικοινωνία: όροι και προοπτικές της διδασκαλίας των Μέσων Μαζικής Επικοινωνίας στην Πρωτοβάθμια και Δευτεροβάθμια Εκπαίδευση
Creators: name: Πασχαλίδης, Γρηγόρης
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: Since the emergence of typography and the nation state, the development of education shows some striking resemblances to the way mass communication has been developing at he same time. The end result of this process was the establishment of these two institutions as the most important apparatuses of cultural homogenization and political socialization in modern societies. In this context, even though deeply antagonistic to each other, mass education and mass communication have developed an eclectic affinity, particularly with regards to the way they defined their popular pedagogic mission, as well as to the way they subverted and deformed the operation of the public sphere. The introduction of media education courses in the primary and secondary levels of the Greek school system is here proposed as a way to go beyond the authoritarian pedagogy and the realist epistemology which dominate both these two institutions, in the prospect of reviving the public sphere starting from the classroom itself. By contrast to the prophylactic and theoretical bias of early media education programmes and proposals, media education is here conceived as a means to develop the critical cultural literacy of the students, with the aim of enabling them to participate critically and creatively in the development of a pluralistic and democratic society.
description: Παιδαγωγική Επιθεώρηση, Vol. 30 (2000)
MPEC 2024-A02 : 2023 WY
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
MERADGEN 1.0: Monte Carlo generator for the simulation of radiative events in parity conserving doubly-polarized Moller scattering
Creators: name: Afanasev, Andrei
name: Chudakov, Eugene
name: Ilyichev, Alexander
name: Zykunov, Vladimir
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Monte Carlo generator MERADGEN 1.0 for the simulation of radiative events in parity conserving doubly-polarized Moller scattering has been developed. Analytical integration wherever it is possible provides rather fast and accurate generation. Some numerical tests and histograms are presented.
description: 23 pages, 4 figures
ПРОБЛЕМЫ ТРУБОПРОВОДНОГО ТРАНСПОРТА УГЛЕВОДОРОДОВ В УСЛОВИЯХ МЕРЗЛОТЫ И ПУТИ ИХ РЕШЕНИЯ
Creators: name: Бакиев Тагир Ахметович
name: Полетаева Ольга Юрьевна
name: Гаррис Нина Александровна
Publisher: name: Транспорт и хранение нефтепродуктов и углеводородного сырья
Year: 2020
Subjects: многолетнемерзлые грунты
техногенное воздействие
тепловое взаимодействие
ореол протаивания
III принцип проектирования
регулируемый теплообмен
теплогидравлический расчет
наземная прокладка

description: Сохранение мерзлоты при строительстве и эксплуатации магистральных трубопроводов представляет собой проблему. Искусственное промораживание грунта оснований не всегда бывает эффективным. Достаточный эффект достигается при комплексном подходе: соблюдении III принципа использования мерзлых грунтов в качестве основания и технологическом регулировании теплообмена трубопровода с окружающей средой. Правильный выбор способа прокладки трубопровода и регламента его эксплуатации способствует сохранности подстилающих мерзлых грунтов.
Modeling RIS Empowered Outdoor-to-Indoor Communication in mmWave Cellular Networks
Creators: name: Nemati, Mahyar
name: Maham, Behrouz
name: Pokhrel, Shiva Raj
name: Choi, Jinho
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: With the increasing adoption of millimeter-waves (mmWave) over cellular networks, outdoor-to-indoor (O2I) communication has been one of the challenging research problems due to high penetration loss of buildings. To address this, we investigate the practicability of utilizing reconfigurable intelligent surfaces (RISs) for assisting such O2I communication. We propose a new notion of prefabricated RIS-empowered wall consisting of a large number of chipless radio frequency identification (RFID) sensors. Each sensor maintains its own bank of delay lines. These sensors which are built within the building walls can potentially be controlled by a main integrated circuit (IC) to regulate the phase of impinging signals. To evaluate our idea, we develop a thorough performance analysis of the RIS-based O2I communication in the mmWave network using stochastic-geometry tools for blockage models. Our analysis facilitates two closed-form approximations of the downlink signal-to-noise ratio (SNR) coverage probability for RIS-based O2I communication. We perform extensive simulations to evaluate the accuracy of the derived expressions, thus providing new observations and findings.
description: Under review for IEEE transactions on Communications. Personal use of this material is permitted. However, permission to use this material for any other purposes must be obtained from the authors
Βιωματική εμπειρία και κίνητρα μάθησης
Creators: name: Μπακιρτζής, Κ.
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: Le processus d'apprentissage, basé sur le vécu émotionnel, fonctionne dès la naissance, sinon plus tôt. Les recherches avec des nouveaux-nés montrent clairement l'importance de la communication humaine pour la naissance du monde psychologique et son développement. L'apprentissage en tant que processus de changement exige des nouvelles expériences, et en particulier pour les enfants des attitudes de soutien et de facilitation. Dans cette optique psychopédagogique se présentent les principes théoriques et méthodologiques d'une pédagogie de l'expérience vécue. Mots clefs: Expérience vécue, expérience évaluative, émotion, communication, changement, apprentissage.
description: Παιδαγωγική Επιθεώρηση, Vol. 30 (2000)
Experimental status of the $ππ$ isoscalar S wave at low energy: $f_0(600)$ pole and scattering length
Creators: name: Yndurain, F. J.
name: Garcia-Martin, R.
name: Pelaez, J. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The experimental results obtained in the last few years on kaon decays (K$\to2π$ and, above all, Ke4 decays) allow a reliable, model independent determination of low energy $ππ$ scattering in the S0 wave. Using them and, eventually, other sets of data, it is possible to give a precise parametrization of the S0 wave as well as to find the scattering length and effective range parameter. One can also perform an extrapolation to the pole of the "$σ$ resonance" [$f_0(600)$]. We obtain the results $$a_0^{(0)}=0.233\pm0.013 M^{-1}_π,\quad b_0^{(0)}=0.285\pm0.012 M^{-3}_π$$ and, for the $σ$ pole, $$M_σ=484\pm17 \mev,\quad\gammav_σ/2= 255\pm10 {\rm MeV}.$$
description: Plain TeX;4 figures; improved data used; version to appear in Phys. Rev. D
Extinction in the 11.2 micron PAH band and the low L_11.2/L_IR in ULIRGs
Creators: name: Hernan-Caballero, Antonio
name: Spoon, Henrik W. W.
name: Alonso-Herrero, Almudena
name: Hatziminaoglou, Evanthia
name: Magdis, Georgios E.
name: Perez-Gonzalez, Pablo G.
name: Pereira-Santaella, Miguel
name: Arribas, Santiago
name: Cortzen, Isabella
name: Labiano, Alvaro
name: Piqueras, Javier
name: Rigopoulou, Dimitra
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a method for recovering the intrinsic (extinction-corrected) luminosity of the 11.2 micron PAH band in galaxy spectra. Using 105 high S/N Spitzer/IRS spectra of star-forming galaxies, we show that the equivalent width ratio of the 12.7 and 11.2 micron PAH bands is independent on the optical depth, with small dispersion of ~5% indicative of a nearly constant intrinsic flux ratio R_int = (f_12.7/f_11.2)_int = 0.377 +/- 0.020. Conversely, the observed flux ratio, R_obs = (f_12.7/f_11.2)_obs strongly correlates with the silicate strength (S_sil) confirming that differences in R_obs reflect variation in the optical depth. The relation between R_obs and S_sil reproduces predictions for the Galactic Centre extinction law but disagrees with other laws. We calibrate the total extinction affecting the 11.2 micron PAH from R_obs, which we apply to another sample of 215 galaxies with accurate measurements of the total infrared luminosity (L_IR) to investigate the impact of extinction on L_11.2/L_IR. Correlation between L_11.2/L_IR and R_obs independently on L_IR suggests that increased extinction explains the well known decrease in the average L_11.2/L_IR at high L_IR. The extinction-corrected L_11.2 is proportional to L_IR in the range L_IR/L_sun = 10^9--10^13. These results consolidate L_11.2 as a robust tracer of star formation in galaxies.
description: 14 pages, 9 figures, 2 tables. Accepted for publication in MNRAS
In Search of an Interface between Warm and Hot Gas within the Local Bubble
Creators: name: Jenkins, Edward B.
name: Gry, Cécile
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have examined UV spectra recorded by the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope for three stars, HD32309, 41 Ari, and $η$~Tel, that are located well inside the boundary of the Local Hot Bubble in our search for absorption features of Si IV, C IV, and N V that could reveal the presence of an interface between the local warm ($T\sim 7000$ K) neutral medium and a more distant hot ($T\sim 10^6$ K) interstellar medium. In all cases, we failed to detect such ions. Our most meaningful upper limit is that for log N(C IV)< 11.86 toward HD32309, which is below the expectation for a sight line that penetrates either a conductive/evaporative interface or a turbulent mixing layer. We offer conjectures on the reasons for these negative results in terms of either a suppression of a conductive layer caused by the shielding of the local cloud by other clouds, which may make it more difficult for us to sense discrete absorption features from gases at intermediate temperatures, or by the presence of a tangential magnetic field at most locations on the surface of the local cloud.
description: 14 pages, 1 figure, accepted for publication in the Astrophysical Journal
Predicting multicellular function through multi-layer tissue networks
Creators: name: Zitnik, Marinka
name: Leskovec, Jure
Publisher: name: F1000 Research Limited
Year: 2019

description: Understanding the functions of proteins in specific human tissues is essential for insights into disease diagnostics and therapeutics, yet prediction of tissue-specific cellular function remains a critical challenge for biomedicine. Here we present OhmNet, a hierarchy-aware unsupervised node feature learning approach for multi-layer networks. We build a multi-layer network, where each layer represents molecular interactions in a different human tissue. OhmNet then automatically learns a mapping of proteins, represented as nodes, to a neural embedding based low-dimensional space of features. OhmNet encourages sharing of similar features among proteins with similar network neighborhoods and among proteins activated in similar tissues. The algorithm generalizes prior work, which generally ignores relationships between tissues, by modeling tissue organization with a rich multiscale tissue hierarchy. We use OhmNet to study multicellular function in a multi-layer protein interaction network of 107 human tissues. In 48 tissues with known tissue-specific cellular functions, OhmNet provides more accurate predictions of cellular function than alternative approaches and also generates more accurate hypotheses about tissue-specific protein actions. We show that taking into account the tissue hierarchy leads to improved predictive power. Remarkably, we also demonstrate that it is possible to leverage the tissue hierarchy in order to effectively transfer cellular functions to a functionally uncharacterized tissue. Overall, OhmNet moves from flat networks to multiscale models able to predict a range of phenotypes spanning cellular subsystems.
Das untergegangene «Tuskulum» des Freiherrn von Schwarz in Salzburg
Creators: name: Windinger, Helmut
Publisher: name: Zenodo
Year: 2024
Subjects: Gründerzeit
Eisenbahnbau
Stadterweiterung
Vorstadtvilla
Schiller-Denkmal
Erzherzog-Johann-Denkmal
Perseus
Apollo vom Belvedere
Neptun
Juno
Merkur
Nymphe
Amazone
Barockzwerge
Brunnen
Park
Garten
Kunstguss
Terrakotten
Carrara-Marmor
Historismus
Canova, Antonio
Schwanthaler, Ludwig
Meixner, Johann
Feinkorn, Anton
Weißenberger, Franz
Schwarz, Freiherr von
Bad Aussee
Salzburg
New York
Metropolitan Museum of Art
Salzburg Museum

description: Der in einfachen Verhältnissen aufgewachsene Karl Schwarz erwarb sich in einer typischen Gründerzeitkarriere ein erhebliches Vermögen, das er unter anderem in Immobilien anlegte. Herausragend war der mehrstufige Umbau des Stadlhofs in Schallmoos in eine Vorstadtvilla mit Garten und Park. Damit entstand ein Gesamtkunstwerk, dass unter den im 19. Jahrhundert errichteten Gründerzeitvillen eine herausragende Stelle einnahm. Von den zahlreichen von Schwarz erworbenen Kunstwerken ragte der Perseus aus Carrara-Marmor, eines der Hauptwerke Antonio Canovas, besonders hervor. Dieser steht heute im Metropolitan Museum of Art in New York. Die meisten anderen Kunstwerke sind verschwunden. Erhalten ist das Denkmal für Erzherzog Johann in Bad Aussee und in Salzburg das Schiller-Denkmal, die Juno in Hellbrunn, die Kopie des Apollo vom Belvedere hinter dem Hauptbahnhof, der sogenannte Neptun und einige Steinvasen. Die Villa, welche die Bomben des zweiten Weltkriegs zwar beschädigten, aber nicht zerstörten, wurde 1958 dem Erdboden gleichgemacht.
Large Latin American Millimeter Array
Creators: name: Romero, Gustavo E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Large Latin American Millimeter Array (LLAMA) is a multipurpose single-dish 12 m radiotelescope with VLBI capability under construction in the Puna de Atacama desert in the Province of Salta, Argentina. In this paper I review the project, the instrument, the current status, and the scientific goals of this astronomical collaboration between Argentina and Brazil.
description: 13 pages, 10 figures, published