cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Simulation-Based Evaluation Of The Hub-And-Spoke Concept To Support The Centrally Managed Supply Of Urban Factories
Creators: name: Reineke, Patrick
name: Geusch, Annika Sophie
name: Büth, Lennart
name: Mennenga, Mark
name: Herrmann, Christoph
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Urban Factories
subject: Logistics
subject: Simulation-based evaluation
subject: Emissions
subject: Traffic Volume
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: The progressive urbanization and increasing decentralization of manufacturing lead to a growing need for the integration of manufacturing plants into urban areas. As a result, industrially induced traffic volumes and emissions are increasing in these areas. Therefore, it is important to manage urban logistics as effective as possible to reduce costs and environmental impacts. A promising approach to support the effective supply of urban factories can be seen in a centrally managed supply. Especially the hub-and-spoke concept is known to solve the problem of the last mile, e.g. within the parcel-industry. That is why most past research activities about hub-and-spoke concepts focus on deliveries to individuals or deliveries in the retail sector while only considering parcel deliveries. However, differing from the parcel industry the supply of urban factories requires especially just in time and just in sequence deliveries. Therefore, new approaches are required which help to analyse if and how a centrally managed supply of urban factories can support the reduction of traffic volumes and with this costs and environmental impacts. In this contribution we conduct a feasibility study on the effectiveness of a centrally managed supply of urban factories using a simulation approach. Based on the analysis of possible stakeholders and different hub concepts, we take a closer look on the application of the hub-and-spoke concept for urban logistics and provide a simulation based evaluation realized with the software Simulation of Urban Mobility (SUMO).
Collaborative Factory Layout Planning With Building Information Modeling
Creators: name: Neuhäuser, Thomas
name: Michaeli, Philipp
name: Lenz, Lisa
name: Hohmann, Andrea
name: Matschinsky, Fabian
name: Madl, Franz
name: Henkelmann, Rayk
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Factory planning
subject: Building Information Modeling
subject: Layout Planning
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Manufacturing companies are facing an increasingly turbulent environment. In order to respond to these dynamic market conditions, products and thus also production systems have to be adapted more frequently and much faster. However, time and cost targets are often missed by classic factory planning approaches due to the lack of interoperability. Therefore, new ways have to be found in factory planning to overcome these problems. Building Information Modeling (BIM), which is used in the construction industry, provides a promising method for collaboration and interaction in complex projects. Therefore, an approach is presented to systematically implement the BIM method in the factory layout planning process. The aim of this approach is to achieve a higher degree of collaboration between the individual specialist planners in earlier planning phases in order to reduce time and costs over the entire project and to lead to better and more valid planning decisions and results. For this purpose, the individual roles in the planning process are defined, a process diagram for layout planning is drawn up, and a basic data set is specified for the systematic entry of the trades.
Downtown Revitalization and Historic Preservation in Small Town America: A Case Study of Tarboro, North Carolina
Creators: name: Brown, E. Watson
name: Hankins, Wes
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1990

description: Tarboro, a small town of 11,000 in eastern North Carolina, was incorporated in 1760 and possesses a rich heritage. In recent years, however, Tarboro has struggled to overcome economic decline and create new opportunities for growth and development. This article describes Tarboro's efforts, focusing on the town's creative combination of downtown revitalization and historic preservation with economic development.
title: A new striped species of Dendropsophus (Anura: Hylidae) with a composite advertisement call and comments on the D. rubicundulus group
Creators: name: Jansen, Martin
name: Santana, Diego José
name: Teixeira, Bernardo Franco da Veiga
name: Köhler, Gunther
Publisher: name: Senckenberg Gesellschaft für Naturforschung
Year: 2019

description: Herein we describe Dendropsophus rozenmani sp. nov. based on morphological, bioacoustic, and molecular data. This new species is distinguished from other species of Dendropsophus by its small size (SVL 18.7–21.1 mm in adult males and 19.6–23.2 mm in females); in life, dorsal ground coloration brown, with two anterior parallel and straight, dark brown stripes and a middorsal sacral stripe; and lateral limits of dorsal coloration above tympanum. In addition, the new species differs from all other species of the D. rubicundulus group (along with D. anataliasiasi) by having a composite advertisement call, i.e., a series of calls consisting of two call types. In a phylogenetic tree based on 494 bp of the 16S mitochondrial gene, four species of Dendropsophus, D. cruzi, D. juliani, and D. sanborni and one candidate species, D. juliani A, are positioned within the rubicundulus species group which poses questions on the monophyly of this group as well as its morphological definition. The occurrence of both single and composite calls in the D. rubicundulus group suggests future studies on the call evolution in that group as well as the whole genus.
Development of a Practical Orientation Guide with Industrie 4.0 Use Cases for Industrial Manufacturers
Creators: name: Schumacher, Simon
name: Pokorni, Bastian
name: Hall, Roland
name: Bildstein, Andreas
name: Hämmerle, Moritz
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Industrie 4.0
subject: Production System
subject: Use Cases
subject: Production Strategy
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Apart from innovators and early adopters, industrial manufacturers are still looking for adequate guidance for the orientation, prioritization, and development of Industrie 4.0 initiatives. Case studies of best practices have proven beneficial for the identification of use cases in manufacturing companies. Therefore, the aim of this paper is to develop an orientation guide for Industrie 4.0 with best practice use cases structured into thematic categories of production system areas. The orientation guide gathers relevant use cases for the adaption in industrial implementations. As a first practical application, the guide will be rolled out in an international study to primarily support regional manufacturing companies from Germany in the development of own Industrie 4.0 use cases. However, the guide is universally applicable to any manufacturing company and provides useful insights for the implementation of Industrie 4.0 use cases globally.
HERschel Observations of Edge-on Spirals (HEROES). I: Far-infrared morphology and dust mass determination
Creators: name: Verstappen, J.
name: Fritz, J.
name: Baes, M.
name: Smith, M. W. L.
name: Allaert, F.
name: Bianchi, S.
name: Blommaert, J. A. D. L.
name: De Geyter, G.
name: De Looze, I.
name: Gentile, G.
name: Gordon, K. D.
name: Holwerda, B. W.
name: Viaene, S.
name: Xilouris, E. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Context. Edge-on spiral galaxies with prominent dust lanes provide us with an excellent opportunity to study the distribution and properties of the dust within them. The HEROES project was set up to observe a sample of seven large edge-on galaxies across various wavelengths for this investigation. Aims. Within this first paper, we present the Herschel observations and perform a qualitative and quantitative analysis on them, and we derive some global properties of the far infrared and submillimetre emission. Methods. We determine horizontal and vertical profiles from the Herschel observations of the galaxies in the sample and describe the morphology. Modified black-body fits to the global fluxes, measured using aperture photometry, result in dust temperatures and dust masses. The latter values are compared to those that are derived from radiative transfer models taken from the literature. Results. On the whole, our Herschel flux measurements agree well with archival values. We find that the exponential horizontal dust distribution model often used in the literature generally provides a good description of the observed horizontal profiles. Three out of the seven galaxies show signatures of extended vertical emission at 100 and 160 μm at the 5σ level, but in two of these it is probably due to deviations from an exactly edge-on orientation. Only for NGC 4013, a galaxy in which vertically extended dust has already been detected in optical images, we can detect vertically extended dust, and the derived scaleheight agrees with the value estimated through radiative transfer modelling. Our analysis hints at a correlation between the dust scaleheight and its degree of clumpiness, which we infer from the difference between the dust masses as calculated from modelling of optical data and from fitting the spectral energy distribution of Herschel datapoints.
description: 21 pages, 12 figures. Accepted for publication in Astronomy & Astrophysics
De las Almas Muertas, las buenas costumbres y una provocación
Creators: name: Hurtatis Espinosa, Héctor Iván
Publisher: name: Universidad del Rosario
Year: 2022

description: Nikolái Gógol, prestante miembro de la nobleza, se ganó el desprecio de las castas dominantes en la Rusia zarista, cuando en 1842 publicó su obra maestra llamada Almas muertas. En esta novela, Gógol narraba la historia de un tal Pavel Chíchikov, exburócrata ruso que viajara por aquella abominable Rusia imperial comprando las almas muertas de los siervos fallecidos. A pesar de lo retórica o metafísica que parezca la descripción, Gógol se las arregla para explicar las razones que tiene su protagonista para aventurarse a tan quijotesca labor. Por aquella época, en la Rusia feudal los siervos eran considerados una propiedad más de los terratenientes; por ende, podían ser vendidos y comprados según fuese la necesidad de sus dueños. Chíchikov, un tipo descrito como carismático, hipócrita, manipulador y sibarita, se da cuenta en su antiguo trabajo que los censos de dichos siervos estaban desactualizados, pues muchos de los siervos que morían aparecían todavía vivos en las estadísticas oficiales del Estado
Pulsatilla halleri
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: A. Halleri L. (CardaminopsisHalleriHayek) ssp. eu-Halleri (Hayek) Domin (A. Hall. ssp. vulgaris et ssp. stolonifera Gaudin) Cat. 18und 421. Die ÄLLiONischeAngabe vom Matterhorn kann nicht das Wallis betreffen. Sie muss auf die Südseite dieses Berges bezogen werden. 1 Die Art ist indessen dort in neuerer Zeit nie festgestellt worden (vgl. Vaccari,Cat. Pl. Aoste I, S. 26 [1904]). 3a: In der zweiten Hälfte des letzten Jahrhunderts für «Gondo» (ob Schweiz?) von Venetz angegeben (vgl. Rion, Guide Bot. Valais, S.19 [1872] undFavre, GuideBot. Simplon, S.14 [1875]), ferner 1921 in zwei Exemplaren in der Gondoschlucht bei der Casermetta von Farquet gesammelt (Farquet Lit. 1926, S. 19; ExemplarevomVerfasser gesehen; vgl. auch Becherer Lit. 1940b, S.309-310). Vom Verfasser an der Farquetschen Fundstelle und sonst bei Gondo seit 1939wiederholt vergeblichgesucht. DieArt ist heutefürdenschweizerischenTeil des Simplongebietesals unsicher zu bezeichnen. (Sie kommt im italienischen Teil des genannten Gebietes: bei Domodossola, vor.)
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
On EVH black hole solution in Heterotic string theory
Creators: name: Yavartanoo, Hossein
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the near horizon geometry of charged rotating black holes in toroidal compactifications of heterotic string theory. We analyze the extremal vanishing horizon (EVH) limit for these black hole solu- tions and we will show that the near horizon geometry develops an AdS3 throat. Furthermore, we will show that the near horizon limit of near EVH black holes has a BTZ factor. We also comment on the CFT dual to this near horizon geometry.
description: 16 pages. arXiv admin note: substantial text overlap with arXiv:1107.5705
Linked Accomplishment Of Order Management And Production Planning And Control. An Integrated Model-based Approach
Creators: name: Hillnhagen, Simon
name: Mütze, Alexander
name: Nyhuis, Peter
name: Schmidt, Matthias
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Production Planning and Control
subject: PPC
subject: Order Management
subject: Configuration
subject: Model
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Order management is a main PPC task in company internal supply chains. It provides the link between customers and the company's internal order processing processes. The boundary conditions defined hereby influence adjacent and subsequent main tasks in PPC. However, since usually conflicts between objectives, such as between utilisation of capacities and schedule reliability are caused in companies, the interaction between PPC tasks of order management and other main PPC tasks should be taken into account. Existing approaches often examine the effect of PPC tasks and procedures in isolation for the respective main task. Especially in the task of order management, the focus of procedures and models lies more on economic and less on production logistics aspects. Nevertheless, these must be taken into account to assess the resulting effects on production (e.g. load and due-date situation) and thus on the logistics performance towards the customer. To counteract this, the contribution presents a model-based approach, which considers the interactions between order management tasks and other PPC tasks. Furthermore, the determined interdependencies and links are used to derive the effects of order management on logistics objectives of production, and to identify how an integrated view can be used to raise production logistics potentials for improving a company’s logistics performance. For this purpose, proven models such as the Hanoverian Supply Chain Model and the extended Aachen PPC Model are used.
Planbarkeit des städtischen Beherbergungswesens. Ein Diskussionsanstoß (nicht nur) aus Anlass der COVID-19-Pandemie
Creators: name: Sommer, Christoph
name: Greinke, Lena
Publisher: name: Berlin : SRL
Year: 2021
Subjects: subject: Stadtplanung
subject: Beherbergungswesen
subject: Wohnungspolitik
subject: Städtetourismus
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::710 | Landschaftsgestaltung, Raumplanung
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: Nicht erst seit der COVID-Pandemie zeichnet sich ab, dass städtische Beherbergungsinfrastrukturen (z. B. Short Term Rentals, Hotels, Serviced Apartments) zunehmend zum planungsbedürftigen Gegen-stand vorausschauender Stadtentwicklungsplanung und -politik werden. Der Beitrag widmet sich daher den folgenden Fragen: Wie entwickelt sich der künftige Bedarf an Beherbergungskapazitäten? Welche Rolle spielt der krisenbedingte Wandel des städtischen Beherbergungswesens bei der Gestaltung (er-)lebenswerter Innenstädte? Welche planerischen Ansätze existieren bereits, um Beherbergungsinfrastrukturen nachhaltiger weiterzuentwickeln?
Edenton: New Life for the Edenton Cotton Mill
Creators: name: Howard, Myrick
name: Bryant, Elizabeth Allen
name: Deviney, Claudia
name: Knighton, Anne Marie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: In September 1995, Edenton was devastated when Unifi, a manufacturer based in Greensboro, announced that it was closing the Edenton Cotton Mill, the town’s largest employer since 1898. The loss of 100 steady manufacturing jobs was enormous for this community, whose total population was only 5,000. The employees at the Cotton Mill were tremendously productive and many were long-time employees; but their skill levels were low, as is the case with most textile jobs, and the town was presented with the daunting task of helping the displaced employees find new jobs. In addition to the increased unemployment, the closure represented a huge loss in property tax revenue: Unifi was one of the top five taxpayers in Edenton. The closing announcement also included a plan to either demolish or sell the mill houses in the Mill Village. Retirees who had lived in the Mill Village all their lives were faced with the very real prospect of being evicted from their homes. The thought of having to help relocate 25 families made many of the town leaders realize how severe the “ripple” effect of the plant closing would be.
Wilmington Achieves Bike-Ped Facility Improvements via Non-Traditional Partnerships
Creators: name: Walters, Adrienne
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: The City of Wilmington, located in New Hanover County, is defined by the Cape Fear River and the Atlantic Ocean. This setting lends itself to recreational opportunities such as surfing, sailing, kayaking, and skateboarding. Until recently, however, bicycling safely around Wilmington proved to be quite a challenge. While Wilmington still has a long way to go, the City is taking a step in the right direction with two evolving bikeways: the River to the Sea Bikeway and the Cross-City Trail. This article focuses on the River to the Sea Bikeway (the Bikeway), an 11-mile on- and off-road bicycle route that runs from downtown Wilmington to Wrightsville Beach. The Bikeway is comprised of multiple segments that fit together and adapt to the specific urban context – congested roadway, sidewalk, park-like setting – in which they are found. Successfully linking downtown Wilmington would have not been possible without community input and a unique partnership between transportation agencies, the public health community, and other private and non-profit organizations.
Using Digitalization As An Enabler For Changeability In Production Systems In A Learning Factory Environment
Creators: name: Rokoss, Alexander
name: Schmidt, Matthias
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Learning factory
subject: Gamification
subject: Changeability
subject: Digitalization
subject: Competencies
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Existing as well as new production systems need to adapt to meet increasing requirements of global, volatile markets. Companies aim to keep their production systems physically changeable while at the same time raise their level of digitalization. The human is a key aspect in the design process of production systems. Humans can only systematically develop suitable solutions if they have the necessary competencies to make reliable decisions. A promising approach to teach the required competencies is the use of gamification in form of learning factories. Approaches for learning factories addressing either digitalization or changeability are already described in literature. Although it lacks an examination on how to teach competencies in a learning factory environment, it enables participants to use digitalization methodically to promote changeability in production systems. This paper describes the required competencies regarding the implementation of changeability in production systems as well as competencies to support changeability making use of digitalization. In addition, it presents a concept for a learning factory workshop. Each round describes a new external impact on the production system that needs to be actively addressed by implementing interactive solutions containing digitalization as well as changeability methods.
Author Correction: RNA-Seq reveals novel genes and pathways associated with hypoxia duration and tolerance in tomato root (Scientific Reports, (2020), 10, 1, (1692), 10.1038/s41598-020-57884-0)
Creators: name: Safavi-Rizi, Vajiheh
name: Herde, Marco
name: Stöhr, Christine
Publisher: name: London : Nature Publishing Group
Year: 2020
Subjects: subject: climate change
subject: hypoxia
subject: ypoxic stress
subject: RnA-Seq
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik

description: Correction to: Scientific Reports https://doi.org/10.1038/s41598-020-57884-0, published online 03 February 2020
Higher-order tangent and secant numbers
Creators: name: Cvijovic, Djurdje
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: In this paper higher-order tangent numbers and higher-order secant numbers, ${\mathscr{T}(n,k)}_{n,k =0}^{\infty}$ and ${\mathscr{S}(n,k)}_{n,k =0}^{\infty}$, have been studied in detail. Several known results regarding $\mathscr{T}(n,k)$ and $\mathscr{S}(n,k)$ have been brought together along with many new results and insights and they all have been proved in a simple and unified manner. In particular, it is shown that the higher-order tangent numbers $\mathscr{T}(n,k)$ constitute a special class of the partial multivariate Bell polynomials and that $\mathscr{S}(n,k)$ can be computed from the knowledge of $\mathscr{T}(n,k)$. In addition, a simple explicit formula involving a double finite sum is deduced for the numbers $\mathscr{T}(n,k)$ and it is shown that $\mathscr{T}(n,k)$ are linear combinations of the classical tangent numbers $T_n$.
description: 10 pages; published
19 Briefe und 6 Karten an Franz und Ida Overbeck
Creators: name: Förster-Nietzsche, Elisabeth
name: Overbeck, Ida
Publisher: name: [s.n.]
Year: 1879

description: von Elisabeth Förster-Nietzsche
description: Unter den autografen Briefen von Elisabeth Förster-Nietzsche an Franz und Ida Overbeck finden sich auch einzelne Briefe oder Entwürfe der Overbecks an Förster-Nietzsche. Vereinzelte Notizen Franz Overbecks auf den Seitenrändern.
description: Die Briefe Nr. 16, 19, 22, 24, 27, 30, 31, 32 und 34 fehlen; an ihrer Stelle liegt jeweils ein modernes Blatt mit Bleistiftverweis auf die hand- oder maschinenschriftlichen Kopien.
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Verzeichnung=Description=Inventaire Januar 2023 HAN-Katalogisierungsregeln hmu
description: Beilage zu Nr. 28: Umschlag, addressiert an "Herrn Professor Dr. Overbeck z. Z. in Leipzig, Hotel Fürstenhof"
description: Beilage 1: Abschriften der fehlenden Briefe Nr. 22, 24, 27, 30, 31, 32 und 34 von der Hand Ida Overbecks, 12 mit rotem Faden zusammengeheftete Blätter
description: Beilage 2: Abschriften vorhandener sowie fehlender Briefe (Nr. 7, 10, 11, 12, 13, 14, 15, 16, 18, 19, 21, 23 und 25, bricht mitten im Brief ab), Typoskript, 32 Blätter Durchschlagpapier
Vicios inadvertidos en la construcción institucional del Estado
Creators: name: Roa-Castellanos, Ricardo Andrés
Publisher: name: Universidad del Rosario
Year: 2022

description: ¿Asumiría Ud. –si no es profesional de la ingeniería de petróleos o geólogo– la planeación y diseño dela exploración y perforación de los pozos petroleros nacionales, actividad de la que depende en granmedida la economía de su país?¿Dejaría la salud de su familia a cargo de un ingeniero civil, un filólogo o un politólogo?, ¿Confiaríasus  negocios,  derechos de  propiedad, y  la  creación de  leyes, a  cargo de  corruptos, ladrones uhomicidas? ¿Dejaría la suerte de los animales o ecosistemas de la nación en manos de movimientosactivistas violentos o personas tan ambiciosas que no tendrían reparo en delinquir para aumentar suriqueza o la de sus familiares? ¿Cree lógico que un profesional, habiendo sido docente por apenas unpar de semestres, tenga el perfil para dirigir un ente que coordina la investigación científica de unanación?
Artificial Neural Networks in Supply Chain Management, A Review
Creators: name: Soori, Mohsen
name: Arezoo, Behrooz
name: Dastres, Roza
Publisher: name: Zenodo
Year: 2023

description: Artificial Neural Networks (ANNs) are a type of machine learning algorithm inspired by the structure and function of the human brain. In the context of supply chain management, ANNs can be used for demand forecasting, inventory optimization, logistics planning, and anomaly detection. ANNs help companies to optimize their inventory levels, production schedules and procurement activities in terms of productivity enhancement of part production. By considering multiple variables and constraints, ANNs can identify the most efficient routes, allocate resources effectively, and reduce costs. Furthermore, ANNs can identify anomalies as well as abnormalities in supply chain data, such as unexpected demand patterns, quality issues and disruptions in logistics operations in order to minimize their impact on the supply chain. ANNs can also analyze supplier performance data, including quality, delivery times and pricing in order to assess the reliability and effectiveness of suppliers. This information can support decision-making processes in supplier evaluation and selection processes. Moreover, ANNs can continuously monitor supplier performance, raising alerts for deviations from predefined criteria to provide safe and secure supply chain in part production processes. By analyzing various data sources, including weather conditions, and political instability, ANNs can identify and mitigate risks in terms of safety enhancement of supply chain processes. Artificial neural networks in supply chain management is studied in the research work to analyze and enhance performances of supply chain management in process of part manufacturing. New ideas and concepts of future research works are presented by reviewing and analyzing of recent achievements in applications of artificial neural networks in supply chain management. Thus, productivity of part manufacturing can be enhanced by promoting the supply chain management using the artificial neural networks.
Hydrodynamics of the double-wave structure of insect spermatozoa flagella
Creators: name: Pak, On Shun
name: Spagnolie, Saverio E.
name: Lauga, Eric
Publisher: name: arXiv
Year: 2012
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: In addition to conventional planar and helical flagellar waves, insect sperm flagella have also been observed to display a double-wave structure characterized by the presence of two superimposed helical waves. In this paper, we present a hydrodynamic investigation of the locomotion of insect spermatozoa exhibiting the double-wave structure, idealized here as superhelical waves. Resolving the hydrodynamic interactions with a non-local slender body theory, we predict the swimming kinematics of these superhelical swimmers based on experimentally collected geometric and kinematic data. Our consideration provides insight into the relative contributions of the major and minor helical waves to swimming; namely, propulsion is due primarily to the minor wave, with negligible contribution from the major wave. We also explore the dependence of the propulsion speed on geometric and kinematic parameters, revealing counter-intuitive results, particularly for the case when the minor and major helical structures are of opposite chirality.
Rural Housing: Reflecting the Spirit of a Culture
Creators: name: Ruth, Dennis K.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2001

description: The author discusses the Auburn University rural studio program, a program that seeks to help poverty stricken Alabama rural communities tackle housing challenges. Each semester, fifteen to twenty AU architecture students move to Hale County and help families design and construct houses. Examples of student housing projects are presented.
Machine Learning For Intelligent Maintenance And Quality Control: A Review Of Existing Datasets And Corresponding Use Cases
Creators: name: Jourdan, Nicolas
name: Longard, Lukas
name: Biegel, Tobias
name: Metternich, Joachim
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Machine learning
subject: Artificial Intelligence
subject: Manufacturing
subject: Dataset
subject: Benchmark
subject: Metric
subject: Evaluation
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: The advent of artificial intelligence and machine learning is influencing the manufacturing industry profoundly, enabling unprecedented opportunities to improve manufacturing processes within the three dimensions time, quality and cost. With the introduction of digitization and industry 4.0, increasing amounts of data become available for processing and use in smart manufacturing systems. However, the various use cases for machine learning in manufacturing often require problem-specific datasets for training and evaluation of algorithms which are difficult to acquire, hindering both practitioners and academic researchers in this area. As the respective data frequently contains sensitive information, manufacturing companies rarely release datasets to the public. Further, the relevant attributes and features of available datasets are usually not evident, requiring time-consuming analysis to evaluate if a dataset fits a given problem. As a result, it can be challenging to develop and evaluate machine learning methods for manufacturing systems due to the lack of an overview of available datasets. This paper presents a comprehensive overview of 47 existing, publicly available datasets, mapped to various use cases in manufacturing with the goal of simplifying and stimulating research. The characteristics of the datasets are compared using a set of descriptive attributes to provide an outline and guidance for further research and application of machine learning in manufacturing. In addition, suitable performance metrics for the evaluation of classification use cases in manufacturing are presented.
Customer Success Management In The Subscription Business Of Manufacturing Companies: Towards A Task-Oriented Reference Model
Creators: name: Holst, Lennard
name: Schuh, Günther
name: Stich, Volker
name: Frank, Jana
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Customer Success Management
subject: subscription business models
subject: Value-in-Use
subject: Manufacturing Companies
subject: Task-oriented Reference Model
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Manufacturing companies are constantly increasing their efforts in the subscription business, also known as product-as-a-service business, offering usage and outcome based solutions (value-in-use) instead of transactional services and products (value-in-exchange). Customers are becoming contractual subscribers of the solution in return for recurring, performance-related payments. To address arising, inevitable challenges like (1) reducing customer churn, (2) increasing usage intensity and outcome quality, (3) ensuring the adoption of product and software releases as well as (4) fostering customer loyalty, leading manufacturing companies are setting up a new organizational, customer-facing unit, called Customer Success Management (CSM). This unit has its origins in the software-as-a-service business, operating next to established entities like sales, key account management and customer service. Since there are currently no holistic models for an end-to-end description of CSM-tasks in the manufacturing industry, this paper contributes to a taskoriented reference model, using a grounded theory approach, examining both manufacturing and software companies. Containing a reference framework with 8 main tasks, 17 basic tasks and 76 elementary tasks, the reference model supports manufacturing companies in adapting and customizing a company-specific CSMconcept.
State and Local Programs for Flood Hazard Management in the Southeast
Creators: name: Burby, Raymond J.
name: Stiftel, Bruce
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1983

description: Flooding is a serious national problem. It affects every state, over half of the communities, and an estimated seven percent of the land area in the United States. In an effort to slow escalating flood losses and reduce mounting expenditures for structural protective works and flood disaster assistance, federal flood hazard mitigation policy has increasingly stressed the need for a balanced approach to flood problems. Such an approach employs both structural and non-structural measures. While structural measures, such as dams, levees, and channel alterations have a long history of successful application, a number of non-structural measures have drawn increasing attention. They include land use regulations, floodproofing, flood forecasting, flood insurance, and post flood recovery planning. Most of these non-structural measures cannot be implemented by the federal government acting alone; they require a cooperative effort among federal, state, and local governments.
Home Mortgage Disclosure Act: A Tool for Separating the Wheat from the Chaff
Creators: name: Skillern, Peter
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1994

description: To the surprise of many in attendance, community activists and financial institutions found common ground at a federal hearing on the Community Reinvestment Act (CRA) held in Henderson, North Carolina on September 15, 1993. Both groups' message was loud and clear: that federal regulators' current CRA evaluation of financial institutions focuses too much on process and too little on results. Under a directive from President Clinton, federal financial regulatory institutions conducted public hearings across the nation on how to improve enforcement of CRA. The suggested reforms for CRA could have an important impact on financial institutions' role in financing housing, community and economic development.
Drinfel'd doubles for (2+1)-gravity
Creators: name: Ballesteros, Angel
name: Herranz, Francisco J.
name: Meusburger, Catherine
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: All possible Drinfel'd double structures for the anti-de Sitter Lie algebra so(2,2) and de Sitter Lie algebra so(3,1) in (2+1)-dimensions are explicitly constructed and analysed in terms of a kinematical basis adapted to (2+1)-gravity. Each of these structures provides in a canonical way a pairing among the (anti-)de Sitter generators, as well as a specific classical r-matrix, and the cosmological constant is included in them as a deformation parameter. It is shown that four of these structures give rise to a Drinfel'd double structure for the Poincaré algebra iso(2,1) in the limit where the cosmological constant tends to zero. We explain how these Drinfel'd double structures are adapted to (2+1)-gravity, and we show that the associated quantum groups are natural candidates for the quantum group symmetries of quantised (2+1)-gravity models and their associated non-commutative spacetimes.
description: 22 pages, no figures
Rafael Uribe Uribe
Creators: name: Nieto, Luis Enrique
Publisher: name: Universidad del Rosario
Year: 2022

description: Esta exposición, preparada con rigor, amor y entusiasmo por los profesores Margarita Guzmán y Fernando Mayorga, intenta enseñar la vida y obra del Doctor y General Rafael Uribe Uribe, utilizando estos muros entre los cuales transcurrió su vida universitaria en un tiempo de claroscuros, como lo fue el siglo XIX que, entre nosotros, duró hasta bien entrado el siglo XX .Por eso la hemos titulado “Rafael Uribe Uribe, un hombre para el siglo XXI” pues, fiel al dictum de nuestro nobel García Márquez, “América Latina no cree sino en los héroes muertos” y hoy, gracias a esta  triste  paradoja, al  haber transcurrido cien  años  de  su  sacrificio, podemos intuir  con  alguna claridad lo que constituye el legado de este ilustre rosarista
Scan strategies for wind profiling with Doppler lidar – an large-eddy simulation (LES)-based evaluation
Creators: name: Rahlves, Charlotte
name: Beyrich, Frank
name: Raasch, Siegfried
Publisher: name: Katlenburg-Lindau : Copernicus
Year: 2022
Subjects: subject: climate conditions
subject: Doppler lidar
subject: large eddy simulation
subject: wind field
subject: wind velocity
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Doppler-lidar scan techniques for wind profiling rely on the assumption of a horizontally homogeneous wind field and stationarity for the duration of the scan. As this condition is mostly violated in reality, detailed knowledge of the resulting measurement error is required. The objective of this study is to quantify and compare the expected error associated with Doppler-lidar wind profiling for different scan strategies and meteorological conditions by performing virtual Doppler-lidar measurements implemented in a large-eddy simulation (LES) model. Various factors influencing the lidar retrieval error are analyzed through comparison of the wind measured by the virtual lidar with the “true” value generated by the LES. These factors include averaging interval length, zenith angle configuration, scan technique and instrument orientation (cardinal direction). For the first time, ensemble simulations are used to determine the statistically expected uncertainty of the lidar error. The analysis reveals a root-mean-square deviation (RMSD) of less than 1 m s−1 for 10 min averages of wind speed measurements in a moderately convective boundary layer, while RMSD exceeds 2 m s−1 in strongly convective conditions. Unlike instrument orientation with respect to the main flow and scanning scheme, the zenith angle configuration proved to have significant effect on the retrieval error. Horizontal wind speed error is reduced when a larger zenith angle configuration is used but is increased for measurements of vertical wind. Furthermore, we find that extending the averaging interval length of lidar measurements reduces the error. In addition, a longer duration of a full scan cycle and hence a smaller number of scans per averaging interval increases the error. Results suggest that the scan strategy has a measurable impact on the lidar retrieval error and that instrument configuration should be chosen depending on the quantity of interest and the flow conditions in which the measurement is performed.
Public Space and the Feeling of (Un)Safety: Between the need for improvement and social appropriation of Urban Competence
Creators: name: Rehren, Frederik
Publisher: name: Hannover : Institut für Umweltplanung
Year: 2022
Subjects: subject: perception of safety
subject: urban space
subject: online survey
subject: expert interview
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::710 | Landschaftsgestaltung, Raumplanung

description: Safety in public spaces is less a matter of statistics and objectivity than of feelings and perception of space. Society constructs individual images of public space through subjective feelings. The triggers for this are diverse: physical environment, human behaviour, media and inequalities in participation in public space. This thesis therefore aims to find out which factors are decisive in the formation of a perception of space in relation to Subjective Safety. In addition, possible measures for the prevention of Feelings of Unsafety in public spaces are elaborated. In order to achieve these goals, this thesis is based on a literature review and three empirical survey methods. In the selected case study of a medium-sized town in Lower Saxony, Barsinghausen, an online survey was carried out to collect decisive factors for Feelings of (Un)Safety. Aiming to find out the significance of media in the area of analysis, an examination of the local press was appended. To obtain the perspective of the planners and consequently the initiators of preventive measures, an expert discussion was also held with representatives of the city planning and city administration of Barsinghausen. The evaluation of the results shows that although components of the physical environment, such as clarity, visibility and brightness, are decisive for safe perceptions in public spaces, it is increasingly human behaviour and media coverage that influence Subjective Safety. Here, differences between the sexes man and woman are particularly noticeable. Preventive planning measures by the city in a structural-architectural context alone are not sufficient to generally ensure increased safety perceptions in public space. The construction of safe feelings is also related to the development of social and urban competence within society, but urban planning is able to trigger this.
title: Agricultural commercialisation and the 'good life'. Investigating the relationship between wellbeing and cash crop production
in low-income countries with qualitative and quantitative methods
Creators: name: Matthys, Marie-Luise
Publisher: name: Universität Bern
Year: 2023
Subjects: subject: 300 Social sciences, sociology & anthropology

description: Numerous low-income countries promote commercial smallholder agriculture to achieve the Sustainable Development Goals and improve the lives of the rural population. While the macroeconomic effects of commercialisation are well established, evidence on household-level impacts is scarce and the little evidence that exists is inconsistent. Particularly, there is a research gap on the influence of commercialisation on the wellbeing of farmers and labourers. This is noteworthy given the growing importance of wellbeing concepts in development research and practice.
This dissertation contributes to linking two important fields of development research by providing a comprehensive analysis of the wellbeing effects of agricultural commercialisation. The analysis combines three different approaches commonly used in wellbeing research: local perspectives, subjective wellbeing, and the capabilities approach. The research focuses on the effects of cardamom production in Nepal; the capability analysis additionally considers impacts of coffee production on capabilitites in Laos and Rwanda to enable comparison.
Overall, the three analyses established a positive relationship between commercialisation and wellbeing. First, an innovative combination of qualitative methods elicited a local concept of the good life in Nepal, in which the dimension “having no hardship” was most salient across different social groups. The shift to cardamom production reduced physical hardship associated with agricultural labour and mental hardship associated with poverty (section 2). Second, cardamom production and life satisfaction were positively associated, a finding which was robust when disaggregating by gender (section 3). Third, several capability expansions were detected, albeit in different forms for women and men, and to different extents in the three study sites (section 4). Despite the various improvements, however, the situation of most households was characterised by marked precariousness: farmers and labourers remained at constant risk of falling back into a state of reduced wellbeing due to reliance on a single crop and the associated dependence on fluctuating world market prices. Further research should focus on mechanisms to guard against these risks.
In-situ 3D endoscopy based on fiber-optic fringe projection profilometry in production metrology
Creators: name: Hinz, Lennart
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2022
Subjects: subject: 3D endoscopy
subject: in-situ metrology
subject: fringe projection profilometry
subject: fiber optics
subject: production metrology
subject: 3D-Endoskopie
subject: in-situ Metrologie
subject: Streifenprojektion
subject: Faseroptik
subject: Produktionsmesstechnik
subject: Dewey Decimal Classification::600 | Technik

description: The technological environment of industrial production processes faces constant challenges and is subject to continuous change. Requirements regarding resource and emission savings as well as lightweight construction, functionalization and individualization are key drivers of technical innovations. In particular, increasing automation, process monitoring and fast component inspection are of growing importance, which requires novel and innovative measurement approaches and instruments. In this thesis, a flexible, fiber-optic 3D endoscope based on fringe projection profilometry is presented for in-situ wear monitoring in operating forming processes. Due to specific measuring applications, different measuring head designs and positioning configurations are required. Flexible positioning necessitates strategies for registration of the reconstructed surface data in a fixed world coordinate system, which is investigated in the context of different approaches. Furthermore, algorithms and methods for adaptive data masking and improved data fusion are developed and presented, allowing for low-noise and accurate surface reconstruction while maintaining as many object points as possible. Complementary, methods for the reduction of inaccurate deviation values are developed to enable a high sensitivity and conclusiveness of the inspection. Furthermore, approaches for fast point cloud classification by adapted search trees and estimation methods are presented. Finally, the sensor is evaluated on the basis of existing standards and further developed approaches, and the influence of various environmental factors is investigated and quantified in various experiments.
Growth in the Southeast: Trends and Choices
Creators: name: Pollard, Trip
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002

description: Population and economic growth in the Southeastern United States over the last decade has generated large-scale land consumption and exacerbated traffic congestion, according to this article. Air pollution has risen, affecting human health and nearby forest ecosystems. Water quality and quantity has declined, and the region is losing a tremendous amount of biodiversity and habitat. The article reviews the fiscal and economic costs of sprawl, as well as its ' impacts on equity within urban areas. Throughout the region, voters are demonstrating their support for smart growth and community livability measures. The article later reviews opportunities for land use and transportation reform in the Southeast, as well as barriers that prevent the adoption of more focused policies.