cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Assessment of Potential Causes of Construction Delay in Tunnels; A Case Study at Awash-Weldiya Railway project
Creators: name: Shambel, Meressa
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Extensive investments in transport are currently being carried out in Ethiopia. A substantial part consists of railway projects with some underground/tunnel constructions. This research deals with assessment of potential causes of construction delay in tunnels; a case study at Awash-Weldiya railway project which is a new railway line in Ethiopia. The objectives of the research were to: (1) assess the extent of construction delay at tunnels of Awash – Weldiya railway project, (2) identify the key causes of delay and problems encountered during the construction of the tunnels, and (3) to rate the impact of the causes of delay on the construction time of the tunnels. Questionnaire survey together with desk study was used to collect data on tunnel construction delay. A desk study of 6 completed tunnels on the project were investigated and analyzed using descriptive statistics. From the results it was found that 4 out of the 6 tunnels suffered delay. The rate of delay on the delayed 4 tunnels ranges from a minimum of 12.84% to 119.41% of the scheduled amount for each tunnel. The average delay of phase one tunnels of Awash-Weldiya railway project was 38.8%. From a number of causes of delay in literature, considering the opinion of professionals of the project 47 causes were identified and prepared as a questionnaire. A total of 17 questionnaires from professionals were collected. The findings from the questionnaire shows that Land acquisition costs and right of way problems, Delays in payment from client, Late in approving documents, and Project location were among the top ten causes of delay. The findings also indicate that the main problems were right of way, flooding, quality, and health and safety problems. Based on impact all the 47 causes were grouped in to three zones in a risk matrix: consequently, 14 causes had high impact, 31 causes with moderate impact, and 2 causes had minor impact on the construction time of phase one tunnels of Awash – Weldiya railway project.
Brief an [Anton] Felkel
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1776

description: von [Johann Heinrich Lambert]
description: Bl. 189: PS (autograph)
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an [Leonhard] Euler
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1763

description: von [Johann Heinrich Lambert]
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an [Leonhard] Euler
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1771

description: von [Johann Heinrich Lambert]
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an [Anton] Felkel
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1776

description: von [Johann Heinrich Lambert]
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Druck: Lambert, Johann Heinrich. - Joh. Heinrich Lamberts deutscher gelehrter Briefwechsel / herausg. von Joh. Bernoulli. - Berlin 1785, 5, I, S.51 ff.
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an [Franz Friedrich Wilhelm Maria] v. Fürstenberg
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1777

description: von J[ohann] H[einrich] Lambert
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Druck: Lambert, Johann Heinrich 1728-1777 (DE-588)118568876. - Joh. Heinrich Lamberts deutscher gelehrter Briefwechsel / herausg. von Joh. Bernoulli. - Berlin 1781, 1, S.431-432
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an [Jean Henri Samuel] Formey
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1776

description: Kritik des Buches von P. Boskovich über die anziehenden und abstossenden Kräfte, in ihrer Abhängigkeit von der Entfernung; Witthe's Plan eines Systems der metaphysischen Grundelemente.
description: von [Johann Heinrich Lambert]
description: Enthält eigenhändige Ergänzungen
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an [Leonhard] Euler
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1764

description: von [Johann Heinrich Lambert]
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an [Leonhard] Euler
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1762

description: von [Johann Heinrich Lambert]
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
description: Siehe auch: L Ia 707:Bl.530 und L Ia 707:Bl.612
Assessment of Railway Tunneling by Cut and Cover Method - Case study of the St. George Church Tunnel in Addis Ababa
Creators: name: Mammo, Mumicha
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: The aim of this work is to assess the construction method and used in tunnel -1 construction site for given site soil condition. It is known that the cut and cover tunnel-1 alignment is under urban street and it needs a serious consideration to provided street for services after excavation; and also the construction method should have to secured the worker and society around the site construction during construction time. In addition, construction method should safe with respect to environmental &socio-economical of Ethiopian. Finally, the construction method of the tunnel-1constructed by cut and cover is tested and assessed by literatures analysis. The construction method will addressed per global class trend and which applicable for Ethiopia depend on site investigation data. Moreover, the studies permit assess and present the comparison of the nature, quality of construction method using to construct tunnul-1 around St. George Church site and the method should be used on such like site condition depend on site investigation data and socio-economic condition Ethiopia in case of Addis Ababa city around St. George church.
Physics of ultrathin films and heterostructures of rare earth nickelates
Creators: name: Middey, S.
name: Chakhalian, J.
name: Mahadevan, P.
name: Freeland, J. W.
name: Millis, A. J.
name: Sarma, D. D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The electronic structure of transition metal oxides featuring correlated electrons can be rationalized within the Zaanen-Sawatzky-Allen framework. Following a brief description of the present paradigms of electronic behavior, we focus on the physics of rare earth nickelates as an archetype of complexity emerging within the charge transfer regime. The intriguing prospect of realizing the physics of high $T_c$ cuprates through heterostructuring resulted in a massive endeavor to epitaxially stabilize these materials in ultra-thin form. A plethora of new phenomena unfolded in such artificial structures due to the effect of epitaxial strain, quantum confinement, and interfacial charge transfer. Here we review the present status of artificial rare-earth nickelates in an effort to uncover the interconnection between the electronic and magnetic behavior and the underlying crystal structure. We conclude by discussing future directions to disentangle the puzzle regarding the origin of the metal-insulator transition, the role of oxygen holes, and the true nature of the antiferromagnetic spin configuration in the ultra-thin limit.
description: Invited review article (Annual Review of Materials Research)
The application of L-systems and developmental models to computer art, animation, and music synthesis
Creators: name: McCormack., Jon
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Rotational tumbling of Escherichia coli aggregates under shear
Creators: name: Portela, R.
name: Patrício, P.
name: Almeida, P. L.
name: Sobral, R. G.
name: Franco, J. M.
name: Leal, C. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Growing living cultures of Escherichia coli bacteria were investigated using real-time in situ rheology and rheo-imaging measurements. In the early stages of growth (lag phase), and when subjected to a constant stationary shear, the viscosity slowly increases with the cell's population. As the bacteria reach the exponential phase of growth, the viscosity increases rapidly, with sudden and temporary abrupt decreases and recoveries. At a certain stage, corresponding grossly to the late phase of growth, when the population stabilises, the viscosity also keeps its maximum constant value, with drops and recoveries, for a long period of time. This complex rheological behaviour, which was observed to be shear strain dependent, is a consequence of two coupled effects: the cell density continuous increase and its changing interacting properties. Particular attention was given to the late phase of growth of E. coli populations under shear. Rheo-imaging measurements revealed, near the static plate, a rotational motion of E. coli aggregates, collectively tumbling and flowing in the shear direction. To explain this behaviour, we introduce a simple theoretical model, in which the individual cells are transported by the flow, but remain rigidly attached to the other cells of the aggregate.
description: 6 pages, 2 figures, submitted
Hybrid Power Quality Compensator Design for Co phase Power Supply System in Electrified Railway
Creators: name: Abrha, Gebremichael
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: Poor power quality and phase splitting are the main issues in electric railway system. Co phase traction power supply system provides continuous power to traction loads without neutral sections. In this thesis hybrid power quality compensator design for minimum DC operation voltage under comprehensive fundamental and harmonic compensation is being proposed and introduced. The hybrid power quality compensator (HPQC), in which a capacitive coupled LC structure is added, is thus proposed for lower operation voltage. The proposed HPQC is composed of a single phase back to back converter with a common DC link. It is connected to the secondary side of a 132kV/27.5kV V/V transformer. Since locomotive loadings are mostly inductive, a capacitive coupled impedance design is adopted in proposed HPQC to reduce the compensator operation voltage. Reduction in operation voltage can effectively reduce the device ratings and the initial cost of the compensator. The operation voltage of proposed HQPC can be minimized when the parameters are properly designed. The design procedures of HPQC parameters are explored using vector diagrams and mathematical derivations. The parameter design for minimum HPQC operation voltage is derived based on constant rated load power factor and capacity. The HPQC operation voltage rating is around 0.4824 under comprehensive compensation. This corresponds to a DC link voltage of around 17.06KV. This shows that under comprehensive compensation, with a proper LC parameter design, a lower dc voltage operation can be achieved. Co phase traction power supply system with HPQC is modeled and simulated using Matlab/Simulink. The simulation result shows that the three phase source harmonics and unbalance are eliminated. This can be verified by its harmonic distortions of current 0.54%, 0.51% and 0.08% at phase A, phase B and phase C respectively, and unbalance of 2.43%. Since the negative sequence current 12.69 is smaller than the threshold value 34.99 then the system unbalance satisfies the standard. Simulation results show the HPQC could compensate unbalance current and current harmonics simultaneously.
Electrodynamics of a Cosmic Dark Fluid
Creators: name: Balakin, Alexander B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Cosmic Dark Fluid is considered as a non-stationary medium, in which electromagnetic waves propagate, and magneto-electric field structures emerge and evolve. A medium - type representation of the Dark Fluid allows us to involve into analysis the concepts and mathematical formalism elaborated in the framework of classical covariant electrodynamics of continua, and to distinguish dark analogs of well-known medium-effects, such as optical activity, pyro-electricity, piezo-magnetism, electro- and magneto-striction and dynamo-optical activity. The Dark Fluid is assumed to be formed by a duet of a Dark Matter (a pseudoscalar axionic constituent) and Dark Energy (a scalar element); respectively, we distinguish electrodynamic effects induced by these two constituents of the Dark Fluid. The review contains discussions of ten models, which describe electrodynamic effects induced by Dark Matter and/or Dark Energy. The models are accompanied by examples of exact solutions to the master equations, correspondingly extended; applications are considered for cosmology and space-times with spherical and pp-wave symmetries. In these applications we focused the attention on three main electromagnetic phenomena induced by the Dark Fluid: first, emergence of Longitudinal Magneto-Electric Clusters; second, generation of anomalous electromagnetic responses; third, formation of Dark Epochs in the Universe history.
description: 39 pages, 0 figures, replaced by the version published in MDPI Journal "Symmetry" (Special Issue: Symmetry: Feature Papers 2016); typos corrected
Brief an [Johann Heinrich Lambert]
Creators: name: Lagrange, Joseph Louis de
Publisher: name: [s.n.]
Year: 1771

description: von [Joseph Louis] de Lagrange
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
title: “Aquilo não é literatura”
title: leituras à margem em À Flor do Tempo de Ilse Losa
titleType: Subtitle
Creators: name: Cordeiro, Gonçalo
Publisher: name: CICS.NOVA - Centro Interdisciplinar de Ciências Sociais, Faculdade de Ciências Sociais e Humanas, Universidade NOVA de Lisboa / Edições Húmus
Year: 2023

description: Este artigo propõe uma releitura de algumas crónicas de Ilse Losa, analisando o modo como convocam o universo literário da própria autora, implicando também uma rede de outras leituras, que surgem de modo marginal no espaço textual da crónica, em si mesmo situado nas margens do cânone.
description: Cordeiro, G. (2023). “Aquilo não é literatura”: leituras à margem em "À flor do tempo" de Ilse Losa. Faces de Eva. Estudos sobre a Mulher, (49). ISSN: 0874-6885 eISSN: 2975-884X
Brief an [Jean Pierre] Erman
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1772

description: Über einen jungen Mann, den Lambert für seine Tafeln einige Rechnungen machen liess. Er riet ihm, sich zum Architekten auszubilden.
description: von [Johann Heinrich Lambert]
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Meteorites and the RNA World: A Thermodynamic Model of Nucleobase Synthesis within Planetesimals
Creators: name: Pearce, Ben K. D.
name: Pudritz, Ralph E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The possible meteorite parent body origin of Earth's pregenetic nucleobases is substantiated by the guanine (G), adenine (A) and uracil (U) measured in various meteorites. Cytosine (C) and thymine (T) however are absent in meteorites, making the emergence of a RNA and later RNA/DNA/protein world problematic. We investigate the meteorite parent body (planetesimal) origin of all nucleobases by computationally modeling 18 reactions that potentially contribute to nucleobase formation in such environments. Out of this list, we identify the two most important reactions for each nucleobase and find that these involve small molecules such as HCN, CO, NH3, and water that ultimately arise from the protoplanetary disks in which planetesimals are built. The primary result of this study is that cytosine is unlikely to persist within meteorite parent bodies due to aqueous deamination. Thymine has a thermodynamically favourable reaction pathway from uracil, formaldehyde and formic acid, but likely did not persist within planetesimals containing H2O2 due to an oxidation reaction with this molecule. Finally, while FT synthesis is found to be the dominant source of nucleobases within our model planetesimal, NC synthesis may still be significant under certain chemical conditions (e.g. within CR2 parent bodies). We discuss several major consequences of our results for the origin of the RNA world.
description: published in Astrobiology, 21 pages, 10 figures (all coloured)
El abuso en la posición dominante en el mercado y en el contrato. Puntos de convergencia y separación
Creators: name: Cruz García, Laura Marcela
Publisher: name: Universidad Externado de Colombia
Year: 2024
Subjects: subject: Contratos - Aspectos jurídicos
subject: Derecho comercial - Legislación
subject: Política comercial - Estudios de caso
subject: Abuso del derecho
subject: Posición dominante en el mercado
subject: Prácticas restrictivas
subject: Cláusulas abusivas
subject: Desequilibrio
subject: Buena fe contractual

description: El presente trabajo analiza las características y alcances de la posición dominante en el mercado y de la posición de dominio en el contrato como manifestaciones del principio de prohibición de abuso del derecho, con el fin de definir puntos de convergencia y separación, así como los contornos de cada una de estas figuras. Si bien dentro del ordenamiento jurídico colombiano existen decisiones judiciales en las que se ha confundido la posición dominante en el mercado y la posición de dominio en el contrato, y una y otra figura pueden coincidir en varios aspectos, lo cierto es que sus alcances y efectos son completamente distintos por lo que delimitar su origen y contornos es de gran utilidad para la academia y para los litigantes que suelen argumentar el abuso en busca de protección, tanto de las autoridades administrativas como jurisdiccionales.
description: This paper analyzes the characteristics and scopes of the dominant position in the market and the dominant position in the contract as manifestations of the principle of the prohibition of the abuse of rights. The aim is to define the boundaries of each of these concepts. In the Colombian legal system, there are judicial decisions in which the dominant position in the market and the dominant position in the contract have been confused. Although these two concepts may overlap, their scopes and effects are entirely different. Therefore, delimiting its origin and contours is very useful for academia and for litigants who often argue abuses in search of protection from both administrative and jurisdictional authorities.
The Game of Open Acces
Creators: name: Engelsmann, Hazel C.
name: Michelsen, Mathias
Publisher: name: Zenodo
Year: 2023
Subjects: Boardgame, Open Access, Game Based Learning

description: This adaptation draws inspiration from "The Game of Open Access" originally created in 2017 by Kate McGuinn and Mik Spikin and made available under the CC BY-NC 3.0 license. We owe our gratitude to the original concept and design, which were meticulously crafted by Computing & Library Services (CLS) at the University of Huddersfield in 2017. You can explore the original content at https://hud.libguides.com/openaccess/GameOfOpenAccess. In our commitment to align this adaptation with the specific requirements of the Danish context and to adhere to the local Open Access policies and practices at Aarhus University, we have undertaken a comprehensive redesign. This redesign involves the introduction of entirely new questions, adjustments to various aspects of the game board, and refinements to the game rules. The game is included in our PhD course as a pleasant addition to a content-rich two-day course covering key concepts in academic research, data management, digital methods, and publishing strategies. It serves as a tool for assessing whether we have achieved our learning objectives in this area. The poster (in danish) describes the process of adapting the game and the context in which it is used. It was presented in March 2023 and won best poster.
Brief an [Johann Heinrich Lambert]
Creators: name: Bernoulli, Johann
name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1773

description: von [Johann Bernoulli]
description: Bl.101: Antwort von Lambert
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Harmonizing Pedestrians Mobility at Level Crossing (The Case of Sebategna Level Crossing in Addis Ababa)
Creators: name: Christine, Nyakona
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: The highway-rail grade crossing is unique in that it constitutes the intersection of two transportation modes, which differ in both the physical characteristics of their traveled ways and their operations. Level crossings involve a considerable number of pedestrians and their harmony with the road and rail traffic, along with railway and road geometry setup is paramount to enhance the economic, social and environmental aspects of public transportation. The level crossing being a shared space, pedestrians experience time and space constrained mobility and their safety at the level crossing is at risk. This research harmonizes the mobility of pedestrians at level crossings. The case of Addis Ababa Light Rail Transit (AALRT) is chosen, with a specific focus on Sebategna level crossing. The current level crossing at Sebategna is a multi-modal shared space that is managed by the train signal, a bell that rings for an approaching train, level crossing signalmen and traffic officers. This setting results in space and time constrained mobility of pedestrians, congestion, and crashes. Constraints to pedestrian mobility and causes of safety-related issues experienced by pedestrians at the level crossing were examined. Using PTV Vissim multi-modal simulation software, this research developed and evaluated two test scenarios that could improve pedestrian mobility and improve their safety at Sebategna level crossing. The results of the study indicate that the constraints to pedestrians' mobility at Sebategna level crossing include; no coordinated signal control at the level crossing, crosswalks opposite the station platforms entrance are not fully observed by vehicular traffic, some sidewalks being blocked by market vendors and congestion on the level crossing during peak hours which causes significant delays. The causes of safety-related incidents experienced by pedestrians' cuts across pedestrians' behavior, driver behavior, pedestrian infrastructure in place and its' utilization. From the results of the simulated test scenarios, improving and adjusting the infrastructure geometry (shared level crossing, lane configuration, conflict areas) in place can improve pedestrian safety and mobility. There are improved queue length and delay times in test scenario 1, compared to test scenario 2, in which signal control was incorporated. However, from a safety perspective, the later would be suitable because of signal control. The queue length and vehicular delay results of the existing scenario is reduced from 66.66 m and 50.52 s to 25.63 m and 14.47 s respectively. The number of conflict areas reduced from 120 in the existing scenario to 110 and 51 in test scenario 1 and 2.
The Effect Of Supply Chain Management Practices On Performance Of Ethio Agri Ceft P.L.C. Tea Processing And Packaging Factory By
Creators: name: Asmamaw, Behailu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Supply chain management is a means by which firms engage in creating, distributing and selling products to establish supply chain networks with unbeatable competitive advantage has developed as one of the most powerful business improvement tools to reduce cost, increase customer satisfaction, better utilization of resource & increase revenue. The purpose of this study is to assess the effect of supply chain management practice towards organizational performance of Ethio Agri CEFT tea processing and packaging factory. The study used four independent variables (strategic supplier partnership, customer relationship practice, internal operation and information sharing) with the dependent variable (organizational performance). Primary data were collected through questionnaires from respondents by Likert scale type questionnaires as measuring instruments from 94 selected respondents by purposive sampling technique and from those 94 questioners 81 questioners were collected which is 86% of response rate. The research used explanatory (Casual) research method to conduct this study and the collected data were analyzed to descriptive statistics by software called statistical package for social science students. Inferential statistic was calculated by Pearson correlation and multiple regression analysis technique & the reliability of data checked by Cronbach's Alpha with the result of 0.891. The result of descriptive statics shows majority of respondents disagreed and the correlation result shows there is positive relationship between dependent & independent variables. The regression analysis result indicates customer relationship practice, internal operation and Information sharing have significant influence on organizational performance. Whereas the influence of strategic supplier partnership on organizational performance is insignificance. The overall result of the study indicate that effective supply chain management practice has an effect on organizational performance of tea processing and packaging factory (TPPF) and the practice of strategic supplier partnership is very poor, customer relationship practice, internal operation and information sharing also needs improvement. To sustain in the dynamics business world the factory develops multi-skill working capacity, replace outdated machineries by the modern one, create collaboration with business partners and relocate the resource in proper manner.
Brief an [Daniel Gottlob] Davisson
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1774

description: von [Johann Heinrich Lambert]
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an [Daniel Gottlob] Davisson
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1775

description: von [Johann Heinrich Lambert]
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
description: Bl. 136-148: Berechnungen (Autograph)
Estimation of the rainfall frequency curve in the extreme range using regional methods
Creators: name: McConachy., Fiona
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Contribución de valorización : análisis jurisprudencial de la falta de motivación en el aspecto cuantitativo del hecho generador
Creators: name: Theodosiadis Camacho, Laura
Publisher: name: Universidad Externado de Colombia
Year: 2023
Subjects: subject: Procedimiento tributario - Legislación
subject: Servicios públicos - Aspectos socioeconómicos
subject: Desarrollo urbano - Colombia
subject: Contribución de valorización
subject: Falta de motivación en los actos administrativos
subject: Análisis Jurisprudencial Consejo de Estado

description: El trabajo de grado tiene como objetivo realizar un análisis jurisprudencial en relación con la falta de motivación en el aspecto cuantitativo del hecho generador de la contribución de valorización, con el fin de identificar los elementos que deben contener los actos administrativos que determinan la asignación, liquidación y distribución de la contribución de valorización, para que no afecte su validez y se pueda llevar a cabo el efectivo recaudo del tributo. El estudio parte de los fundamentos conceptuales de la contribución por valorización haciendo un recuento de la evolución normativa del tributo y el desarrollo jurisprudencial que ha tenido. Posteriormente se realiza un análisis de cuatro sentencias proferidas por el Consejo de Estado en el medio de control de nulidad y restablecimiento del derecho en los cuales se alegó como causal de nulidad la falta de motivación del aspecto cuantitativo de los actos administrativos que definieron la contribución de valorización para finalizar con las conclusiones de la autora.
Constraining stellar binary black hole formation scenarios with eLISA eccentricity measurements
Creators: name: Nishizawa, Atsushi
name: Sesana, Alberto
name: Berti, Emanuele
name: Klein, Antoine
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A space-based interferometer such as eLISA could observe few to few thousands progenitors of black hole binaries (BHBs) similar to those recently detected by Advanced LIGO. Gravitational radiation circularizes the orbit during inspiral, but some BHBs retain a measurable eccentricity at the low frequencies where eLISA is most sensitive. The eccentricity of a BHB carries precious information about its formation channel: BHBs formed in the field, in globular clusters, or close to a massive black hole (MBH) have distinct eccentricity distributions in the eLISA band. We generate mock eLISA observations, folding in measurement errors, and using Bayesian model selection we study whether eLISA measurements can identify the BHB formation channel. We find that a handful of observations would suffice to tell whether BHBs were formed in the gravitational field of a MBH. Conversely, several tens of observations are needed to tell apart field formation from globular cluster formation. A five-year eLISA mission with the longest possible armlength is desirable to shed light on BHB formation scenarios.
description: 5 figures, 1 table
La protección jurídica de los arrecifes coralinos en Colombia
Creators: name: Gómez Caballero, Leider
Publisher: name: Universidad Externado de Colombia
Year: 2024
Subjects: subject: Recursos naturales - Legislación
subject: Política pública - Aspectos socioeconómicos
subject: Arrecifes - Aspectos jurídicos
subject: Corales
subject: Áreas marinas protegidas
subject: Varadero
subject: Ecosistema estratégico
subject: Parques nacionales naturales

description: Además de su belleza colorida, el ecosistema coralino es el lugar donde nacen, crecen y se reproducen una basta cantidad de especies marinas. Ello explica el hecho de que sea uno de los ecosistemas con mayor número de servicios para la especie humana. El cambio climático y otras actividades del hombre tienen este ecosistema en riesgo de desaparición. Este artículo pretende dar cuenta de los instrumentos normativos y de política pública que tiene Colombia para la protección efectiva de este ecosistema, explorar la figura de las áreas marinas protegidas y develar las deficiencias de la ley colombiana en torno a la ordenación de los espacios marino-costeros.
description: In addition to its colorful beauty, the coral ecosystem is the place where a vast number of marine species are born, grow, and reproduce. This explains why it has so many ecosystem services. Climate change and other human activities are putting this ecosystem at the edge. This article aims to account for the regulatory and public policy instruments that Colombia has for the effective protection of this ecosystem, to explore the concept of marine protected areas, and to uncover deficiencies in Colombian law regarding the management of coastal marine spaces.
Investigation of Thermo- Structural Behavior of Ventilation Application on Rail Vehicle Disc Brake
Creators: name: Mohammed, Kedir
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: In recent decades, disc brakes have increasingly become more popular and gradually found their ways in many different types of vehicles, ranging from light motorcycles to heavy road trucks or even trains. They offer several advantages over drum brakes, including better stopping performance (disc cooled readily), easier to control (not self-applying), less prone to brake fade, and quicker recovery from immersion, which largely contributed to their popularity. However, after long repetitive braking, brake fade could still set in and compromise the performance of a disc brake due to the change of friction characteristics caused by temperature rise and overheating of brake components. Overheated components could further lead to more problems such as thermal cracks, plastic deformation and the life span of a disc brake could be shortened as a result. Therefore, to accurately predict the temperature rise in a disc brake system is of eminent importance in the early design stage. Yet, owing to the interactions of several physical phenomena, prediction of disc brake performance is highly complicated. In this thesis, we were apply modeling to the thermomechanical behavior of the ventilated design of disc and the computational modeling is carried out using FEM .Ventilation applications on brake discs can significantly improve the brake system performance by reducing the heating of the discs. In this study, the thermal behaviors of ventilated brake disc configuration were investigated at repeated brake conditions in terms of heat generation and thermal stresses with finite element analysis. The results were compared with solid brake.
Brief an [Daniel Gottlob] Davisson
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1774

description: von [Johann Heinrich Lambert]
description: Bl. 131r unten: 5 Zeilen autograph
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an [Daniel Gottlob] Davisson
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1774

description: von [Johann Heinrich Lambert]
description: PS autograph
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Analog electromagnetically induced transparency for circularly polarized wave using three dimensional chiral metamaterials
Creators: name: Lin, Hai
name: Yang, Dong
name: Han, Song
name: Liu, Yangjie
name: Yang, Helin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: In this paper, we theoretically and experimentally demonstrate a three dimensional metamaterial that can motivate electromagnetic induced transparency (EIT) by using circular polarized wave as stimulations. The unit cell consists of a pair of metallic strips printed on both sides of the printed circuit board (PCB), where a conductive cylinder junction is used to connect the metal strips by drilling a hole inside the substrate. When a right circularly polarized wave is incident, destructive interference is excited between meta-atoms of the 3D structure, the transmission spectrum demonstrates a sharp transparency window. A coupled oscillator model and an electrical equivalent circuit model are applied to quantitatively and qualitatively analyze the coupling mechanism in the EIT-like metamaterial. Analysis in detail shows the EIT window's amplitude and frequency are modulated by changing the degree of symmetry breaking. The proposed metamaterial may achieve potential applications in developing chiral slow light devices.
description: 11 pages, 7 figs, under review for Opt. Express
Performance of Synthesized NaOH/Bentonite Catalyst for Production of Biodiesel from Cottonseed Oil
Creators: name: Lamesign, Desta
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: In this study, NaOH/bentonite catalyst was synthesized and its performance was evaluated for biodiesel production from cottonseed oil. Impregnation method was used for the synthesis of NaOH/bentonite catalyst and the best catalyst was selected based on the yield of transesterification reactio. The highest yield of biodiesel was obtained by using the catalyst synthesized at 500 0 C of calcination temperature, 5 hr. of calcination time, and NaOH to bentonite ratio of 0.20. The result of the XRD and FTIR characterization showed that the impregnation of NaOH was successful and the active and basic component Na2O was obtained during calcination process. The optimization result showed that the optimum condition for the transesterification reaction by using the selected catalyst was a temperature of 64.45 0 C, a catalyst loading of 2%w/w of cottonseed oil, and methanol to oil molar ratio of 6 which resulted in 89.7423% biodiesel yield. Different physicochemical properties of biodiesel produced at the optimum parameters were determined and it was in the range of international standards. The FAME content of the produced biodiesel was 95.8%, which was above the minimum requirement.
Setting standards – how information centres can help to foster open science
Creators: name: Heck, Tamara
name: Rittberger, Marc
name: Schneider, Gabriel
Publisher: name: Zenodo
Year: 2021
Subjects: research data management
open data
quality criteria
usability
qualitative data

description: As research aims at being more open and transparent to raise quality standards and prove validity of results (Fecher and Friesike 2014), regional, European-wide and discipline-specific infrastructures are developed and funded to support the goals of open science. Moreover, researchers themselves change their practices and apply tools and services to manage and share their research (Kramer and Bosman 2016). With regard to sharing and archiving research data, professional research data centres like the research data education alliance (Bambey et al. 2018) aim at supporting scientists in their data management and offer search platforms to make data searchable, findable and accessible. Besides established data centres, there are numbers of online and free to use services that allow researchers to share their data. Online services have the advantage to offer a quick and direct service researchers can use immediately without any restriction. Data centres are managed by data scientists that curate incoming data, including processes like quality and data privacy proof as well as metadata and license control. Thus, processes usually take a bit longer, but at the same time the data archived fulfils high-quality standards and researchers seeking reusable data can rely on proper resources. With regard to the different options researchers have for storing their data, our objectives in the following study were to compare the online repository Zenodo with the research data education centre and to apply quality criteria standards of this centre on open online data sets. We aimed at doing a qualitative study with a small data set sample that was analysed manually and will give hints on the quality of online data sets. We focus on the field of educational research, a highly heterogeneous field with different disciplines involved, like e.g. pedagogics, psychology, sociology. Those fields have different methodological approaches and thus produce diver research data with quantitative and qualitative characteristics. Standards of sharing educational research data are developed by professional data centres, which as well curate research data and do quality checks. The question arises, whether shared online educational data has the same or similar qualities and if online repositories allow to set the same quality criteria at all. The research questions are: What are relevant criteria for educational research data? Which quality criteria does educational research data shared online fulfil? We want to contribute to a better understanding of researcher practices with regard to uploading open data and gives recommendations on how data centres could help facilitate data sharing and data re-using practises.
Haptic rendering for laparoscopic surgery simulation
Creators: name: McColl., Ryan
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Xerokopie von: Studiengeld-Abrechnung der Kasse des eidgenössischen Polytechnkiums zuhanden von Rudolf Clausius (1822-1888) für das erste Semester 1866/67
Creators: name: Hochschule, Eidgenössische Technische, Kasse
Publisher: name: [s.n.]
Year: 1867

description: Vordruck, für die Abrechnung ausgefüllt in Zürich, unter Angabe der in den Kollegien eingeschriebenen Zuhörer.
Unterzeichnet von: Wissmann, Kassier des eidgenössischen Polytechnikums.
Für wissenschaftliche Forschung zur Verfügung gestellte Xerokopie des Originals.
Benützungsmöglichkeiten über eine Einsichtnahme hinaus richten sich nach der aktuellen Archivierung im Dt. Museum München.
Abrechnung, notiert vermutlich auf 1 Bl./2 S.
Tracing technological development trajectories: A genetic knowledge persistence-based main path approach
Creators: name: Park, Hyunseok
name: Magee, Christopher L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computers and Society (cs.CY)
subject: Digital Libraries (cs.DL)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: The aim of this paper is to propose a new method to identify main paths in a technological domain using patent citations. Previous approaches for using main path analysis have greatly improved our understanding of actual technological trajectories but nonetheless have some limitations. They have high potential to miss some dominant patents from the identified main paths; nonetheless, the high network complexity of their main paths makes qualitative tracing of trajectories problematic. The proposed method searches backward and forward paths from the high-persistence patents which are identified based on a standard genetic knowledge persistence algorithm. We tested the new method by applying it to the desalination and the solar photovoltaic domains and compared the results to output from the same domains using a prior method. The empirical results show that the proposed method overcomes the aforementioned drawbacks defining main paths that are almost 10x less complex while containing more of the relevant important knowledge than the main path networks defined by the existing method.
description: 20 pages, 7 figures
Los patrimonios autónomos en Colombia como sujetos procesales
Creators: name: Sierra Mora, Leidy Marcela
Publisher: name: Universidad Externado de Colombia
Year: 2023
Subjects: subject: Derecho civil - Colombia
subject: Derecho procesal - Legislación
subject: Jurisprudencia comercial - Aspectos jurídicos
subject: Patrimonio autónomo
subject: Contrato de fiducia
subject: Personalidad jurídica
subject: Capacidad procesal

description: El presente trabajo da cuenta de la revisión jurídica documental, que ha creado una caracterización de los “patrimonios autónomos”, atravesando su naturaleza jurídica, noción, las diversas tipologías de esa forma patrimonial en el ordenamiento jurídico colombiano; profundizando en el fenómeno jurídico del contrato de fiducia, la comparecencia del mismo a los procesos, presupuestos procesales y reglamentación en la legislación comparada de sistemas jurídicos como el peruano, mexicano y el español. Su lectura, brindará las herramientas precisas para que el lector construya una postura propia respecto de la importancia del patrimonio autónomo no sólo en el mundo jurídico, sino en la flexibilización de la realidad económica, y si devendrá o no necesario una mayor regulación de este fenómeno jurídico, con miras a generar mayor seguridad en la posibilidad con que cuenta de sujetarse a derecho y obligaciones. A esas reflexiones y la actitud crítica, pretende contribuir el presente documento.
description: This work reports on the documentary legal review, which has created a characterization of the “autonomous patrimonies”, going through their legal nature, notion, the various typologies of this patrimonial form in the Colombian legal system; delving into the legal phenomenon of the trust contract, its appearance in the processes, procedural budgets and regulations in the comparative legislation of legal systems such as Peruvian, Mexican and 3 Spanish. Reading it will provide the precise tools for the reader to build their own position regarding the importance of autonomous assets not only in the legal world, but also in the flexibility of economic reality, and whether or not greater regulation of this phenomenon will become necessary. Legal, with a view to generating greater security in the possibility of being subject to law and obligations. This document aims to contribute to these reflections and critical attitude.