cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Contribution of new Production Technologies and Circular Economy Towards meeting the Future Demand of Proton-exchange Membrane Fuel Cells – A Literature Review
Creators: name: Schmidt, Patrick Alexander
Publisher: name: Hannover : publish-Ing.
Year: 2022
Subjects: subject: Circular Economy
subject: End of life
subject: High-rate production
subject: Proton-exchange membrane fuel cell (PEMFC)
subject: Remanufacturing
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: The energy and mobility sectors contribute significantly towards the global CO2 emissions. The proton-exchange membrane fuel cell finds application in both sectors and represents a possible green and sustainable technology for electricity generation. Current production rates do not satisfy the predicted demand for proton-exchange membrane fuel cells as the diffusion of this technology keeps increasing. Nor does the per-part cost guarantee a globally sufficiently broad application. The industry must overcome technological and economic obstacles to enable higher production rates at a lower cost per unit. This research gives an overview of current proton-exchange membrane fuel cell production and stacking technologies and provides an outlook on processes that need to be improved to enable faster and lower-cost production. Additionally, the impact of remanufacturing as an end of life option on the circular economy, production, and ecological impact of proton-exchange membrane fuel cells is examined. The knowledge generated by this research shall support increasing proton-exchange membrane fuel cell production rates to catch up with the predicted demand. Since current research on proton-exchange membrane fuel cell remanufacturing is rare, findings on this topic will support the industry in preparing for circular production processes in the future. Results of the present work include an overview of the current state of production for proton-exchange membrane fuel cells, the areas that need improvement, and the role of a circular economy.
Dark-state suppression and optimization of laser cooling and fluorescence in a trapped alkaline-earth-metal single ion
Creators: name: Lindvall, T.
name: Merimaa, M.
name: Tittonen, I.
name: Madej, A. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the formation and destabilization of dark states in a single trapped 88Sr+ ion caused by the cooling and repumping laser fields required for Doppler cooling and fluorescence detection of the ion. By numerically solving the time-dependent density matrix equations for the eight-level system consisting of the sublevels of the 5s 2S1/2, 5p 2P1/2, and 4d 2D3/2 states, we analyze the different types of dark states and how to prevent them in order to maximize the scattering rate, which is crucial for both the cooling and the detection of the ion. The influence of the laser linewidths and ion motion on the scattering rate and the dark resonances is studied. The calculations are then compared with experimental results obtained with an endcap ion trap system located at the National Research Council of Canada and found to be in good agreement. The results are applicable also to other alkaline earth ions and isotopes without hyperfine structure.
Gauge Independence of Magnetic Moment and Vanishing Charge of Dirac Neutrinos: an Exact One-loop Demonstration
Creators: name: Hou, Wen-Tao
name: Liao, Yi
name: Liu, Hong-Jun
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The magnetic moment and vanishing charge of a Dirac neutrino are physically observable quantities and must not depend on the choice of gauge in a consistent quantum field theory. We verify this statement explicitly at the one loop level in both R_xi and unitary gauges of the minimally extended standard model. We accomplish this by manipulating directly the integrands of loop integrals and employing simple algebraic identities and integral relations. Our result generally applies for any masses of the relevant particles and unitary neutrino mixing.
description: 14 pages, 2 figures
A Mathematical Modeling for Delivery Time in Dynamic PERT Networks
Creators: name: Afsari, Mahtab
name: Javadi Vasigh, Hesam
Publisher: name: Toronto : CCSE
Year: 2016
Subjects: subject: Randomness
subject: Mathematical optimization
subject: Exponential function
subject: Project management
subject: Variables
subject: Schedule (project management)
subject: Mathematics
subject: FOS: Mathematics
subject: Linear function
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: In project management, the main purpose of proposed methods is project scheduling which helps to management and planning. We can calculate a real average of project closure in dynamic PERT networks by identifying a lower limit. According to randomness, each distribution parameter varies itself and also it is proposed that activity durations are exponential distributions which have casual, unstable and independent variables. We used hypothetic kinetic programming, that project closure time would have a lower limit. Finally, delivery time would obtain optimal due date by minimizing the expected aggregate cost per project and also a linear function of its due-date.
Charles Jean Jacques Zumbach-Imer (1859-1931) an Louis Rollier (1859-1931)
Creators: name: Zumbach-Imer, Charles Jean Jacques
name: Rollier, Louis
Publisher: name: [s.n.]
Year: 1914

description: Brief aus Bern, auf Briefpapier "Garten-Stadt am Gurten, Bureau des Syndikats"
Zusätzlich darauf vermerkt: Notizen von Louis Rollier
title: Сравнение алгоритмов MAMDANI и SUGENO в задаче процесса обучения ANFIS для оценки QOE доступа к интернет-услугам на базе пакета MATLAB
Creators: name: ., В.А. Галкин – к.т.н., доцент, кафедра «Системы обработки информации и управления», МГТУ им. Н.Э. Баумана E-mail: galkin@bmstu.ru С.Н. Красильников – магистр, кафедра «Системы обработки информации и управления», МГТУ им. Н.Э. Баумана E-mail: sergkras1994@gmail.com В.Б. Попенков – магистр, кафедра «Системы обработки информации и управления», МГТУ им. Н.Э. Баумана E-mail: vpopenkov11@gmail.com Х.К. Гонсалес-Гусев – аспирант, кафедра «Системы обработки информации и управления», МГТУ им. Н.Э. Баумана E-mail: jcgonzalezgusev@gmail.com
Publisher: name: Издательство Радиотехника
Year: 2019

description: Постановка проблемы. При разработке системы управления удобно использовать системы нечеткого вывода из-за воз-можности оперирования нечеткими входными данными и работы со степенью достоверности данных. Системы с нечеткой логикой преобразуют значения входных переменных рассматриваемого процесса в выходные переменные на основе использования нечетких правил продукций. Такие системы включают в себя базу правил нечетких продукций и реализуют нечеткий вывод заключений. Процесс нечеткого вывода разделен на пять этапов. Варьируя параметры на каждом из них, можно определить некоторый алгоритм. Существуют различные алгоритмы нечеткого вывода.
Цель. Сравнить алгоритмы MAMDANI и SUGENO в задаче процесса обучения ANFIS для оценки QOE доступа к интернет-услугам на базе пакета MATLAB. Для выбора наиболее подходящего алгоритма в конкретной задаче нужно использовать параметры, учитывающие ее специфику.
Результаты. После проведенного сравнительного анализа двух алгоритмов нечеткого вывода (алгоритма Мамдани и алгоритма Сугено) можно сделать вывод, что они имеют различия в формате базы знаний и процедуре деффазификации. Для задач, где наиболее важным является точность идентификации нелинейных зависимостей наиболее подходящим является алгоритм Сугено. Поэтому для решения задачи о нахождении реальной оценки качества услуги «доступ в Интернет», где возможно 11! вариаций параметров, следует использовать алгоритм Сугено, так как при больших объемах выборки экспериментальных данных идентификация с помощью модели Сугено обеспечивает большую точность. Для подтверждения данного выбора было проведено моделирование процесса обучения ANFIS для оценки QoE в системе Matlab. Были созданы сети типа ANFIS на основе алгоритмов Мамдани и Сугено. После их обучения было проведено сравнение точности алгоритмов.
Практическая значимость. В результате проведенного исследования было установлено, что наиболее эффективным алго-ритмом является алгоритм Сугено. Выбор данного алгоритма позволил получить наибольшую точность при выставлении оценки QoE доступа к интернет-услугам.
title: Анализ и отличительные особенности цветовых моделей, используемых в современных графических редакторах
Creators: name: ., Б.С. Горячкин – к.т.н., доцент, кафедра «Системы обработки информации и управления», МГТУ им. Н.Э. Баумана E-mail: bsgor@mail.ru И.Б. Белоногов – ст. преподаватель, МГТУ им. Н.Э. Баумана E-mail: belonogov@bmstu.ru Д.Б. Горячкин – преподаватель, МГТУ им. Н.Э. Баумана E-mail: dbg88@icloud.com
Publisher: name: Издательство Радиотехника
Year: 2019

description: Постановка проблемы. Значение цвета при разработке качественных реалистичных изображений трудно переоценить. По-этому обработка изображений требует постоянного учета нюансов цветовоспроизведения и цветовосприятия, которые имеют физические (характеристики цвета), технические (параметры средств отображения информации) и психологические (концеп-туальное восприятие, ассоциативное мышление, особенности зрительной системы человека) аспекты.
Цель. Провести анализ цветовых моделей (ЦМ), используемых в современных двумерных и трехмерных графических редакторах, как растровых, так и векторных.
Результаты. Приведена классификация ЦМ, определены базовые модели. По каждой модели отмечены отличительные осо-бенности, такие как цветовое пространство, цветовой охват, область применения, наиболее целесообразные способы исполь-зования; описаны достоинства и недостатки моделей.
Практическая значимость. Проведенный анализ поможет выбрать наиболее удобную ЦМ для конкретного случая.
title: Сопоставление табличных данных при помощи графового представления
Creators: name: ., И.С. Дружицкий – магистрант, кафедра «Программное обеспечение ЭВМ и информационные технологии», МГТУ им. Н.Э. Баумана E-mail: idruzhitskiy@mail.ru Д.Е. Бекасов – ст. преподаватель, кафедра «Программное обеспечение ЭВМ и информационные технологии», МГТУ им. Н.Э. Баумана E-mail: bekasov@bmstu.ru И.В. Рудаков – к.т.н., доцент, зав. кафедрой «Программное обеспечение ЭВМ и информационные технологии», МГТУ им. Н.Э. Баумана E-mail: irudakov@yandex.ru
Publisher: name: Издательство Радиотехника
Year: 2019

description: Постановка проблемы. Финансовая аналитика подразумевает анализ финансовых отчетностей различных компаний для получения информации об их состоянии и прогнозирования дальнейшего развития. Для этого производится сопоставление табличных данных и ее формализация при помощи теории графов.
Цель. Предлагается адаптация существующего метода факторизованного сопоставления графов с учетом особенностей табличного представления информации. Первой из них является наличие априорно известных сопоставлений. В отличии от подходов, позволяющих переносить такие пары напрямую в результат, предлагаемый алгоритм использует данные сопоставления как опорные точки для дальнейшей работы, что повышает точность метода в целом. Второй особенностью рассматриваемой задачи является наличие сильных отличий в структурах сопоставляемых таблиц рассматриваемых предметных областей, а, следовательно, и графов. Взятый за основу метод требует нахождения сопоставлений для всех вершин в своем результате, что может привести к росту числа ложноположительных сопоставлений. Предлагаемым решением является добавление фиктивных вершин.
Результаты. Проведено исследование влияния каждой модификации на реальных и синтетических тестовых данных. Влияние добавления фиктивных вершин изучено на синтетических тестах. На больших графах (более 100 вершин) достигнуто значительное повышение качества работы метода. Изучение влияния алгоритма учета априорной информации проведено на реальных данных, основанных на финансовых отчетах, предоставляемых банками или другими публичными компаниями.
Практическая значимость. Применение алгоритма уменьшило число ложноотрицательных сопоставлений, согласно математическим соотношениям, до нуля. В ряде случаев число ложноположительных результатов также уменьшилось. Дальнейшие улучшения и модификации могут включать использование других методов оптимизации для повышения производительности и достижения большей скорости сходимости. Также метод может быть дополнительно модифицирован для учета информации об априорных ложных сравнениях, что должно уменьшить число ложноположительных результатов.
LCAAJ audio for location 50294A (Korostyshiv (Ukraine)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Korostyshiv, Ukraine (50.316667, 29.066667)
Unveiling a population of galaxies harboring low-mass black holes with X-rays
Creators: name: Schramm, M.
name: Silverman, J. D.
name: Greene, J. E.
name: Brandt, W. N.
name: Luo, B.
name: Xue, Y. Q.
name: Capak, P.
name: Kakazu, Y.
name: Kartaltepe, J.
name: Mainieri, V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report the discovery of three low-mass black hole candidates residing in the centers of low-mass galaxies at z<0.3 in the Chandra Deep Field - South Survey. These black holes are initially identified as candidate active galactic nuclei based on their X-ray emission in deep Chandra observations. Multi-wavelength observations are used to strengthen our claim that such emission is powered by an accreting supermassive black hole. While the X-ray luminosities are low at L_X ~ 10^40 erg s^-1 (and variable in one case), we argue that they are unlikely to be attributed to star formation based on Hαor UV-fluxes. Optical spectroscopy with Keck/DEIMOS and VLT/FORS allows us to (1) measure accurate redshifts, (2) confirm their low stellar host mass, (3) investigate the source(s) of photo-ionization, and (4) estimate extinction. With stellar masses of M* < 3*10^9 M_\sun determined from HST/ACS imaging, the host galaxies are among the lowest mass systems known to host actively accreting black holes. We estimate BH masses M_BH ~ 2*10^5 M_\sun based on scaling relations between BH mass and host properties for more luminous systems. In one case, a broad component of the Hαemission-line profile is detected thus providing a virial mass estimate. Black holes in such low-mass galaxies are of considerable interest as the low-redshift analogs to the seeds of the most massive BHs at high redshift which have remained largely elusive to date. Our study highlights the power of deep X-ray surveys to uncover such low-mass systems.
description: accepted for publication by The Astrophysical Journal
Im Namen der Erziehungsdirektion des Kantons Zürich an Louis Rollier (1859-1931), betreffend Venia legendi
Creators: name: Zürich: Kanton: Erziehungsdirektion des Kantons Zürich
Publisher: name: [s.n.]
Year: 1924

description: Beschluss, mitgeteilt aus Zürich, betreffend Erneuerung der Venia legendi von Louis Rollier
GIS-based identification and assessment of suitable meeting point locations for ride-sharing
Creators: name: Czioska, Paul
name: Mattfeld, Dirk C.
name: Sester, Monika
Publisher: name: Amsterdam : Elsevier BV
Year: 2017
Subjects: subject: Carpooling
subject: GIS Analysis
subject: Meeting Point
subject: Pickup Location
subject: Rendezvous Point
subject: Ride-Sharing
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::380 | Handel, Kommunikation, Verkehr

description: Ride-Sharing or carpooling is a common means to utilize available but so far unused vehicle seat capacity. To establish a shared ride, it is necessary that the driver and the passengers agree on a meeting point. In most existing applications, the pickup location of a passenger is assumed to be on his or her doorstep. However, many people are willing to walk a certain distance to meet at a place where a safe and convenient boarding can be established, while at the same time the necessary detour of the driver can be kept acceptable. In this contribution we introduce an assessment scheme for meeting point locations based on results of an online survey retrieving the stated acceptance of meeting point locations and the relevance of the available facilities like parking places, seating, shelter and light. To this end, the infrastructure of a medium-sized European city is assumed to show exemplary how the amount and the distribution of suitable meeting point locations affects the performance and convenience of ride-sharing.
LCAAJ audio for location 50283 (Pryazhiv, Ukraine)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Pryazhiv, Ukraine (50.185278, 28.676111)
Computational Studies on Structural and Excited State Properties of Modified Chlorophyll f with Various Axial Ligands
Creators: name: Y, S R K Chaitanya Sharma
name: Periyasamy, Ganga
name: Pati, Swapan K
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Time Dependent Density Functional Theory (TDDFT) calculations have been used to understand the excited state properties of "modified-chlorophyll" f ('Chlide' f), Chlide a, Chlide b and axial ligated (with Imidazole, H2O, CH3OH, CH3COOH, C6H5OH) Chlide f molecules. The computed differences among the Qx, Qy, Bx and By band absorbance wavelengths of Chlide a, b and f molecules are found to be comparable with the experimentally observed shifts for these bands in 'chlorophyll' a ('chl' a), chl b and chl f molecules. Our computations provide an evidence that the red shift in Qy band of chl f is due to the extended delocaliztion of macrocycle chlorin ring due to the presence of -CHO group. The local contribution from the -CHO substituent to the macrocycle chlorin ring stabilizes the corresponding molecular orbitals (LUMO of the Chlide f and LUMO-1 of the Chlide b). All the absorption bands of Chlide f shift to higher wavelengths on the addition of axial ligands. Computed redox potentials show that, among the axial ligated Chlide f molecules, Chlide f -Imidazole acts as a good electron donor and Chlide f -CH3COOH acts as a good electron acceptor.
description: 28 pages, 10 figures, Journal Article
LCAAJ audio for location 50294 (Korostyshiv, Ukraine)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Korostyshiv, Ukraine (50.316667, 29.066667)
The Symmetry Group of Lamé's System and the Associated Guichard Nets for Conformally Flat Hypersurfaces
Creators: name: Santos, João Paulo dos
name: Tenenblat, Keti
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We consider conformally flat hypersurfaces in four dimensional space forms with their associated Guichard nets and Lamé's system of equations. We show that the symmetry group of the Lamé's system, satisfying Guichard condition, is given by translations and dilations in the independent variables and dilations in the dependents variables. We obtain the solutions which are invariant under the action of the 2-dimensional subgroups of the symmetry group. For the solutions which are invariant under translations, we obtain the corresponding conformally flat hypersurfaces and we describe the corresponding Guichard nets. We show that the coordinate surfaces of the Guichard nets have constant Gaussian curvature, and the sum of the three curvatures is equal to zero. Moreover, the Guichard nets are foliated by flat surfaces with constant mean curvature. We prove that there are solutions of the Lamé's system, given in terms of Jacobi elliptic functions, which are invariant under translations, that correspond to a new class of conformally flat hypersurfaces.
Correlated dynamics of the motion of proton-hole wave-packets in a photoionized water cluster
Creators: name: Li, Zheng
name: Madjet, Mohamed El-Amine
name: Vendrell, Oriol
name: Santra, Robin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We explore the correlated dynamics of an electron-hole and a proton after ionization of a protonated water cluster by extreme ultra-violet (XUV) light. An ultrafast decay mechanism is found in which the proton--hole dynamics after the ionization are driven by electrostatic repulsion and involve a strong coupling between the nuclear and electronic degrees of freedom. We describe the system by a quantum-dynamical approach and show that non-adiabatic effects are a key element of the mechanism by which electron and proton repel each other and become localized at opposite sides of the cluster. Based on the generality of the decay mechanism, similar effects may be expected for other ionized systems featuring hydrogen bonds.
description: 5 pages, 4 figures
Exploring bacterial outer membrane barrier to combat bad bugs
Creators: name: Ghai, Ishan
name: Ghai, Shashank
Publisher: name: Macclesfield : Dove Medical Press
Year: 2017
Subjects: subject: Antibiotic resistance
subject: Antibiotics
subject: Cell envelope
subject: Gram-negative bacteria
subject: Influx
subject: Nanopores
subject: Protein channels
subject: amoxicillin
subject: ampicillin
subject: avibactam
subject: azlocillin
subject: beta lactam antibiotic
subject: carbenicillin
subject: cefalotin
subject: cefamandole
subject: cefepime
subject: cefotaxime
subject: cefoxitin
subject: cefpirome
subject: ceftazidime
subject: ciprofloxacin
subject: enrofloxacin
subject: ertapenem
subject: grepafloxacin
subject: imipenem
subject: meropenem
subject: moxifloxacin
subject: nalidixic acid
subject: norfloxacin
subject: outer membrane protein
subject: penicillin G
subject: piperacillin
subject: piperacillin plus tazobactam
subject: quinoline derived antiinfective agent
subject: sulbactam
subject: tazobactam
subject: unindexed drug
subject: antibiotic resistance
subject: bacterial outer membrane
subject: drug binding
subject: drug transport
subject: electrophysiology
subject: fluorescence resonance energy transfer
subject: Gram negative bacterium
subject: membrane conductance
subject: membrane permeability
subject: membrane transport
subject: molecular mechanics
subject: nonhuman
subject: permeability barrier
subject: Review
subject: translational research
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: One of the main fundamental mechanisms of antibiotic resistance in Gram-negative bacteria comprises an effective change in the membrane permeability to antibiotics. The Gram-negative bacterial complex cell envelope comprises an outer membrane that delimits the periplasm from the exterior environment. The outer membrane contains numerous protein channels, termed as porins or nanopores, which are mainly involved in the influx of hydrophilic compounds, including antibiotics. Bacterial adaptation to reduce influx through these outer membrane proteins (Omps) is one of the crucial mechanisms behind antibiotic resistance. Thus to interpret the molecular basis of the outer membrane permeability is the current challenge. This review attempts to develop a state of knowledge pertinent to Omps and their effective role in antibiotic influx. Further, it aims to study the bacterial response to antibiotic membrane permeability and hopefully provoke a discussion toward understanding and further exploration of prospects to improve our knowledge on physicochemical parameters that direct the translocation of antibiotics through the bacterial membrane protein channels.
Xerokopie von: Louis Rollier (1859-1931) an Heinrich Wegelin (1853-1940).
1966 hinterlegt, aus der naturwissenschaftlichen Sammlung im Museum des Kantons Thurgau
Creators: name: Rollier, Louis
Publisher: name: [s.n.]
Year: 1915

description: Für wissenschaftliche Forschung zur Verfügung gestellte Xerokopie.
Im Rahmen von Tauschbeziehungen 1966 erstellte Xerokopie des Originals, Benützungsmöglichkeiten über eine Einsichtnahme hinaus richten sich nach der aktuellen Archivierung durch das Thurgauer Museum.
Brief aus Zürich, notiert vermutlich auf 2 Bl./4 S.
Tuning interaction strength leads to ergodic-nonergodic transition of quantum correlations in anisotropic Heisenberg spin model
Creators: name: Mishra, Utkarsh
name: Prabhu, R.
name: De, Aditi Sen
name: Sen, Ujjwal
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the time dynamics of quantum correlations of the anisotropic Heisenberg model in a time-dependent magnetic field, in one-dimensional, ladder, and two-dimensional lattices. We find that quantum correlation measures in the entanglement-separability paradigm are ergodic in these systems irrespective of system parameters. However, information-theoretic quantum correlation measures can also be nonergodic, and exhibit a transition from nonergodic to ergodic behavior with the change of interaction strength in the direction of the magnetic field. We also observe that the transition point changes drastically as we go from one-dimensional and ladder lattices to the two-dimensional one.
description: 10 pages, 7 figures, RevTeX4-1
Xerokopie von: Louis Rollier (1859-1931) an Pater Damian Buck (1871-1940), Stift Einsiedeln.
1960er Jahre, erstellt ab Original, hinterlegt in Zürich
Creators: name: Rollier, Louis
Publisher: name: [s.n.]
Year: 1928

description: Für wissenschaftliche Forschung zur Verfügung gestellte Xerokopie des Originals (leicht vergrössert).
Benützungsmöglichkeiten über eine Einsichtnahme hinaus richten sich nach der aktuellen Archivierung (vermutl. unter Nachlässe) im Klosterarchiv von Einsiedeln.
Postkarte aus Zürich, notiert auf 1 Postkarte/2 S.
A multi-layer social force approach to model interactions in shared spaces using collision prediction
Creators: name: Rinke, N.
name: Schiermeyer, C.
name: Pascucci, F.
name: Berkhahn, V.
name: Friedrich, B.
Publisher: name: Amsterdam : Elsevier BV
Year: 2017
Subjects: subject: microscopic simulation
subject: mixed traffic
subject: Shared space
subject: social force model
subject: traffic conflict
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::380 | Handel, Kommunikation, Verkehr

description: In shared space environments the movements of road users is not regulated by traffic rules, but is the result of spontaneous interaction between traffic users, who negotiate the priority according to social rules such as eye contact or courtesy behavior. However, appropriate micro simulation tools, which can reproduce the operation of shared spaces, are currently lacking. In this paper, a multi-layer approach for representing the movement of road users and their interaction, based on the Social Force Model, is developed. In a free-flow layer a realistic path is calculated for each user towards his destination, while a conflict layer is used for detecting possible conflict situations and computing an appropriate reaction. The novelty of this work in the field of shared space modeling is in the implementation of group dynamics and a SFM based approach for cyclists. The presented approach is qualitatively tested in different traffic situations involving cyclists, pedestrians and pedestrian groups, and shows realistic behavior. © 2017 The Authors. Published by Elsevier B.V.
title: Evaluation of Late Mesozoic and Cenozoic Tectonism: Atlantic Inner Coastal Plain Margin Near Richmond, Virginia
Creators: name: Gremos, Andrew A.
Publisher: name: Old Dominion University Libraries
Year: 1992

description: A combined geologic, geophysical, and geomorphic analysis of the Virginia Inner Coastal Plain margin near Richmond was conducted to investigate the presence of basement structures and to evaluate their influence on the overlying sedimentary package and present-day landscape. Basement structures identified included north-northeast and northwest oriented faults that appear to bound and transect a north-northeast trending early Mesozoic basin or basins and other pre-existing zones of weakness. Observed offsets are propagated upward through the pre-Miocene strata in the form of reverse faults and flexuring. Fracture sets measured in the Petersburg Granite and overlying Coastal Plain units, stream drainage lines, and topographic linears occur in one of three to four dominant orientations (N-S, NE-SW, NW-SE, E-W) coincident with large scale structures found throughout the Virginia Coastal Plain inferring a common tectonic origin. Major drainage courses traversing the study area are also controlled by the presence of identified basement structures.
Singularities in ternary mixtures of k-core percolation
Creators: name: Cellai, Davide
name: Gleeson, James P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Heterogeneous k-core percolation is an extension of a percolation model which has interesting applications to the resilience of networks under random damage. In this model, the notion of node robustness is local, instead of global as in uniform k-core percolation. One of the advantages of k-core percolation models is the validity of an analytical mathematical framework for a large class of network topologies. We study ternary mixtures of node types in random networks and show the presence of a new type of critical phenomenon. This scenario may have useful applications in the stability of large scale infrastructures and the description of glass-forming systems.
description: To appear in Complex Networks, Studies in Computational Intelligence, Proceedings of CompleNet 2013
title: Lithofacies of the Pliocene-Pleistocene Lucayan Limestone, Great Abaco Island, Little Bahama Bank
Creators: name: Mullen, Mary K.
Publisher: name: Old Dominion University Libraries
Year: 1993

description: Petrographic and sedimentologic analyses of eleven shallow subsurface cores (3 to 19 meters in length) from the Lucayan Limestone where it occurs along northeastern Great Abaco Island (little Bahama Bank) are used to delineate five carbonate lithofacies. The most prevalent lithofacies is a mottled, nonskeletal, peloidal packstone to grainstone. Other lithofacies include a rudstone, a laminated nonskeletal grainstone, a crossbedded grainstone and a mudstone-wackestone.

Cementation varies from poor to very well cemented core intervals. Cements observed included equant granular, equant blocky, drusy, meniscus, and needle fiber "whisker" cements. These cements reflect a variety of diagenetic environments such as the vadose, meteoric, and phreatic zones. It is not possible to use the cement types to define past sea level positions. However, the cement types indicate periods of subaerial exposure that may have been a result of sea level fluctuations.

The near surface carbonates of northeastern Great Abaco Island can be correlated with the upper Lucayan Limestone found on Little Bahama Bank, northwestern Great Bahama Bank and in the southeastern Bahamas
LCAAJ audio for location 50281 (Chudniv, Ukraine)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Chudniv, Ukraine (50.052778, 28.112222)
Computation of antenna pattern correlation and MIMO performance by means of surface current distribution and spherical wave theory
Creators: name: Klemp, O.
name: Armbrecht, G.
name: Eul, H.
Publisher: name: Göttingen : Copernicus GmbH
Year: 2006
Subjects: subject: Accurate prediction
subject: Antenna correlation
subject: Computational technique
subject: Diversity performance
subject: MIMO channel capacity
subject: Multi-element antennas
subject: Surface current distributions
subject: Wireless communications
subject: Channel capacity
subject: Directional patterns (antenna)
subject: Electric current distribution measurement
subject: Spheres
subject: Wireless telecommunication systems
subject: Antennas
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: In order to satisfy the stringent demand for an accurate prediction of MIMO channel capacity and diversity performance in wireless communications, more effective and suitable models that account for real antenna radiation behavior have to be taken into account. One of the main challenges is the accurate modeling of antenna correlation that is directly related to the amount of channel capacity or diversity gain which might be achieved in multi element antenna configurations. Therefore spherical wave theory in electromagnetics is a well known technique to express antenna far fields by means of a compact field expansion with a reduced number of unknowns that was recently applied to derive an analytical approach in the computation of antenna pattern correlation. In this paper we present a novel and efficient computational technique to determine antenna pattern correlation based on the evaluation of the surface current distribution by means of a spherical mode expansion.
Optimizing Customer Insights: AI-Driven Analytics for E-commerce Feedback and Reviews
Creators: name: Gajjar, Shraddhaben
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 460202
subject: Autonomous agents and multiagent systems
classificationCode: 460209
subject: Planning and decision making

description: Artificial Intelligence (AI) is transforming the way businesses understand customer feedback and reviews in the e-commerce industry. With the growing reliance on digital platforms, businesses face the challenge of analyzing vast amounts of customer data efficiently. AI-powered analytics help businesses extract meaningful insights, improve customer experiences, and refine decision-making processes. This paper explores how AI enhances customer data analysis through sentiment analysis, predictive modeling, personalized engagement, and automation. It also examines the benefits, challenges, and future potential of AI in optimizing customer feedback for e-commerce growth. Additionally, this paper integrates a review of recent empirical studies, industry applications, and AI methodologies to provide a more in-depth perspective on AI’s evolving role in the e-commerce sector.
title: Instability Waves in the Gulf Stream Front and Its Thermocline Layer
Creators: name: Lee, Sang-Ki
Publisher: name: Old Dominion University Libraries
Year: 1993

description: Linear instability calculations were carried out on a three layer Gulf Stream front model in an attempt to elucidate the interaction of the thermocline layer with surface slopewater shoreward of the front. The basic state is geostrophic balance and constant potential vorticity in the two active layers, but the perturbations are ageostrophic. The flow is found to be unstable to long wave perturbations, the wavelength of the most unstable wave to be of order 10 radii of deformation. The instability is mainly baroclinic, 75-85% of the energy supply to the growing perturbation coming from basic flow potential energy. Calculated wavelengths and growth rates, using parameters typical of the Gulf Stream, are similar to those observed. The eigenfunctions and particle trajectories reveal large cross-frontal excursions in the thermocline layer, and a large, if weak, cyclonic eddy in the surface slopewater in a meander trough.
Monte Carlo investigation into feasibility and dosimetry of flat Flattening Filter Free beams
Creators: name: Zavgorodni, Sergei
Publisher: name: arXiv
Year: 2013
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Flattening filter free (FFF) beams due to their non-uniformity, are sub-optimal for larger field sizes. The purpose of this study was to investigate the incident electron beam distributions that would produce flat FFF beams without the use of flattening filter. Monte Carlo (MC) simulations with BEAMnrc and DOSXYZnrc codes have been performed to evaluate the feasibility of this approach. The dose distributions in water for open 6MV beams were simulated using Varian 21EX linac head model, which will be called flattening filter (FF) model. Flattening filter has then been removed from FF model, and MC simulations were performed using (1) 6 MeV electrons incident on the target, (2) 6 MeV electron beam with electron angular distributions optimized to provide as flat dose profiles as possible. Configuration (1) represents FFF beam while configuration (2) allowed producing a flat FFF (F4) beam. Optimizations have also been performed to produce flattest profiles for a set of dose rates (DRs) in the range from 1.25 to 2.4 of the DR of FF beam. Profiles and percentage depth doses PDDs from 6MV F4 beams have been calculated and compared to those from FF beam. Calculated profiles demonstrated improved flatness of the FFF beams. In fact, up to field sizes within the circle of 35 cm diameter the flatness of F4 beam at dmax was better or comparable to that of FF beam. At 20 cm off-axis the dose increased from 52% for FFF to 92% for F4 beam. Also, profiles of F4 beams did not change considerably with depth, and for large fields out-of-field dose was reduced by about a factor of two compared to FF beam. PDDs from F4 beams were similar to those of FFF beam. The DR for the largest modeled (44 cm diameter) F4 beam was higher than the DR from FF beam by a factor of 1.25. It was shown that the DR can be increased while maintaining beam flatness, but at the cost of reduced field size.
description: 13 pages, 14 figures
title: Hydrographic Variability on Decadal and Interdecadal Scales in the Northern Gulf of Alaska
Creators: name: Sarkar, Nandita
Publisher: name: Old Dominion University Libraries
Year: 2001

description: The mixed layer depth (MLD) in the North Pacific is important to vertical mixing and hence the flux nutrients into the euphotic zone. A time series of hydrographic measurements, tem perature and salinity versus depth, at a coastal site in the northern Gulf of Alaska is used to determine the seasonal and interannual variations in the MLD. Data from this station called GAK 1 (59°50.7‘X. 149C28.0'\V) in 203 m of water begin in 1974 and end in 1998. The MLD changes seasonally from about 50 m in summer to more than 130 m in winter. These changes are in response to the seasonal variations in the wind stress, solar heating, precipitation, and freshwater discharge. The 25 years of hydrographic data allow the determination of interannual variations in the MLD. The MLD trend over this period is for a slight increase in the MLD that is not statistially significant. This is in contrast to others who found a significant shoaling of the MLD in the central region of the Gulf of Alaska (Ocean Station P. 50°X. 145°\V). This difference in the response of the marine system is reasonable if one assumes that an increase in the circulation of the Alaskan Gyre will result in enhanced upwelling in the central gulf (OSP) and enhanced downwelling along the coast (GAK 1). The seasonal and interannual variations of the GAK 1 temperatures and salinities reveal 1) a possible coupling between salinity, density and freshwater discharge and 2) a strong coupling between tem perature and Pacific Decadal Oscillation (PDO) and the Southern OScillation Index (SOI). Spectral analyses of the hydrographic parameters and environmental parameters of PDO. upwelling (downwelling). freshwater discharge and SOI also reveal many similarities. The density spectra are very similar to salinity spectra with a few exceptions. Those exceptions are found at depth where the temperature and salinity are related. This allows tem perature to influence salinity and hence density. The environmental parameters or physical forcing can he separated according to their dominant periods of variation: either El-Xino Southern Oscillation (ENSO) periods of less than 10 years or interdecadal periods. The hydrographic parameters primarily have ENSO periods, though the deep waters also have significant interdecadal variations. PDO has both ENSO and interdecadal periods. The upwelling index has approximately equal contributions from ENSO and interdecadal variability and freshwater discharge variations have primarily ENSO periods. Reproduced
LCAAJ audio for location 50296 (Makariv, Ukraine)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Makariv, Ukraine (50.457326, 29.812655)
title: The Hydrogeology of Nags Head Woods, Dare County, North Carolina
Creators: name: Emry, Janet Salyer
Publisher: name: Old Dominion University Libraries
Year: 1987

description: Nags Head Woods, a coastal maritime forest located on a barrier island in eastern North Carolina, stabilizes a back-barrier dune system bordering a tidal marsh. The purpose of this study is to provide basic information about the groundwater geology in Nags Head Woods and to predict the effects upon water levels due to municipal pumping of Fresh Pond, a large lake near the center of the island.

Clean, fine-to-medium sands dominate the top of the surficial (water table) aquifer, underlain by silty fine-to-coarse sands at -4 m elevation. A silty clay bed of very low permeability is present at -12 m to -21 m elevation.

The natural water table across the island forms an elongate dome which crests east and northeast of Fresh Pond. Municipal pumpage of Fresh Pond lowers lake water levels by 1.5 m to 2.0 m.

A finite-difference model (PLASM) was used to predict the effects of pumping from Fresh Pond.
Xerokopie von: Louis Rollier (1859-1931) an Eduard Gerber (1876-1956)
1966 hinterlegt, aus dem Naturhistorischen Museum Bern
Creators: name: Rollier, Louis
Publisher: name: [s.n.]
Year: 1912

description: Für wissenschaftliche Forschung zur Verfügung gestellte Xerokopie.
Im Rahmen von Tauschbeziehungen 1966 erstellte Xerokopie des Originals, Benützungsmöglichkeiten über eine Einsichtnahme hinaus richten sich nach der aktuellen Archivierung durch das Berner Museum.
Brief aus Zürich, notiert auf 2 S.
Elastic-plastic analysis of metallic shells at finite strains
Creators: name: Campello, Eduardo Moraes Barreto
name: De Mattos Pimenta, Paulo
name: Wriggers, Peter
Publisher: name: Ouro Preto : REM
Year: 2007
Subjects: subject: Elastic-plastic shells
subject: Elastoplasticity
subject: Finite rotations
subject: Finite strains
subject: Triangular shell finite element
subject: Variable-thickness
subject: elastoplasticity
subject: finite element method
subject: hardening
subject: isotropy
subject: strain
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The geometrically-exact finite-strain variable-thickness shell model of [1] is reviewed in this paper and extended to the case of metallic elastoplastic shells. Isotropic elasticity and von Mises yield criterion with isotropic hardening are considered. The model is implemented within a triangular finite element and is briefly assessed by means of two numerical examples.
Hall polynomials for representation-finite cluster-tilted algebras
Creators: name: Fu, Changjian
Publisher: name: arXiv
Year: 2012
Subjects: subject: Rings and Algebras (math.RA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 16D90, 16G60

description: We show the existence of Hall polynomials for representation-finite cluster-tilted algebras.
description: 6 pages
title: Sedimentologic  and Stratigraphic Significance of Boulder Layers in the Outer Coastal Plain of Southeastern Virginia
Creators: name: McDaniel, Robert C.
Publisher: name: Old Dominion University Libraries
Year: 1985

description: In southeastern Virginia one to two discontinuous boulder layers occur at the base of the Pleistocene Norfolk Formation. The sediments, heavy minerals and microfossils within the boulder layers in addition to boulder lithologies, dimensions and orientations were studied to determine the origin of these layers. These data indicate the boulder layers were separated into two similar yet distinct layers.

The ancestral James River with sea-level 100 meters lower than today probably had the capacity to entrain 70-80 percent of the clasts in the boulder layers, but probably not the capacity to entrain the larger cobbles and boulders in the boulder layers. Winter river-ice rafting might provide a possible means of transporting the larger and angular clasts from the Blue Ridge and Piedmont Provinces to the boulder layers in southeastern Virginia. Reproduced
Analogues of Two Classical Theorems on the Representations of a Number
Creators: name: Melham, R.S.
Publisher: name: Zenodo
Year: 2008

description: Jacobi's classical four-square theorem gives the number of representations of a positive integer as the sum of four squares. A theorem of Legendre gives the number of representations of a positive integer as the sum of four triangular numbers. In this paper we give analogous results that involve triangular numbers, squares, pentagonal numbers, and octagonal numbers.
Xerokopie von: Louis Rollier (1859-1931) an Eduard Gerber (1876-1956)
1966 hinterlegt, aus dem Naturhistorischen Museum Bern
Creators: name: Rollier, Louis
Publisher: name: [s.n.]
Year: 1913

description: Für wissenschaftliche Forschung zur Verfügung gestellte Xerokopie.
Im Rahmen von Tauschbeziehungen 1966 erstellte Xerokopie des Originals, Benützungsmöglichkeiten über eine Einsichtnahme hinaus richten sich nach der aktuellen Archivierung durch das Berner Museum.
Brief aus Zürich, notiert auf 2 Bl./3 S.
Gymnasts utilize visual and auditory information for behavioural synchronization in trampolining
Creators: name: Heinen, T.
name: Koschnick, J.
name: Schmidt-Maaß, D.
name: Vinken, P.M.
Publisher: name: Warsaw : Institute of Sport
Year: 2014
Subjects: subject: Auditory information
subject: Behavioural synchronisation
subject: Straight leaps
subject: Trampolining
subject: Visual information
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::790 | Freizeitgestaltung, Darstellende Kunst
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: In synchronized trampolining, two gymnasts perform the same routine at the same time. While trained gymnasts are thought to coordinate their own movements with the movements of another gymnast by detecting relevant movement information, the question arises how visual and auditory information contribute to the emergence of synchronicity between both gymnasts. Therefore the aim of this study was to examine the role of visual and auditory information in the emergence of coordinated behaviour in synchronized trampolining. Twenty female gymnasts were asked to synchronize their leaps with the leaps of a model gymnast, while visual and auditory information was manipulated. The results revealed that gymnasts needed more leaps to reach synchronicity when only either auditory (12.9 leaps) or visual information (10.8 leaps) was available, as compared to when both auditory and visual information was available (8.1 leaps). It is concluded that visual and auditory information play significant roles in synchronized trampolining, whilst visual information seems to be the dominant source for emerging behavioural synchronization, and auditory information supports this emergence.