bluuebunny/crossref_metadata_2025 huggingface dataset:
Estrategias de transferencia del conocimiento en las Universidades Nacionales Experimentales del estado Zulia, Venezuela
Authors:   Universidad de La Guajira, Colombia, ARIZA Carla P. , BUILES Suleica E. ,   Universidad de La Guajira, Colombia, RINCONES Gerardo J. ,   Universidad de La Guajira, Colombia
Published: December 2020

Se presenta un análisis de las estrategias de transferencia del conocimiento en las universidades nacionales experimentales del estado Zulia, Venezuela. Las bases teóricas se fundamentaron en Davenport & Prusak (2001), Nonaka & Takeuchi (1995), Benavides Velasco & Quintana García (2003) y Bratianu (2014). Se desarrolló bajo el tipo de investigación descriptiva, con diseño de campo no experimental y transeccional. Dentro de los resultados mas importantes, se tiene que las estrategias de transferencia del conocimiento mas usadas son las categorizadas, espontáneas y formalizadas.
Estrategias que apoyan el aprendizaje de la caída libre de los cuerpos
Authors:   Universidad de La Sabana, Colombia, BECERRA Diego F. , VARGAS Ana D. ,   Universidad de La Sabana, Colombia, BOUDE Oscar R. ,   Universidad de La Sabana, Colombia, BENITEZ Marcela ,   Universidad San Buenaventura
Published: December 2020

Esta investigación analiza la importancia del uso de las TIC y la estrategia de Aprendizaje Activo de la Física, en el aprendizaje de la caída libre de los cuerpos. Para ese propósito se realizó una propuesta con 50 estudiantes de grado décimo del Colegio Misael Pastrana Borrero de Bogotá D.C., Colombia. Los resultados de la investigación, de tipo cualitativo y de orden descriptivo, indican que, la enseñanza de la Física mediada por simulaciones, laboratorios virtuales y el aprendizaje activo de la física, posibilita motivación, colaboración y altas ganancias en el aprendizaje en los estudiantes participantes del estudio.
Capacidades de aprendizaje en niños con autismo: un análisis relacional
Authors:   Universidad Catolica Luis Amigo, Colombia, GIL-VERA V.D. , QUINTERO-LOPEZ C. ,   Universidad Catolica Luis Amigo, Colombia, VELEZ-LOPEZ J.A. ,   Universidad Catolica Luis Amigo, Colombia, GOMEZ-MUÑOZ N. ,   Centro de Atención Especializado en Neuropsicología “Neuropser”
Published: December 2020

Los niños con trastorno del espectro autista (TEA) se caracterizan por presentar problemas de comunicación, tienen un enfoque limitado y dificultades para mantener la atención, lo que les genera grandes problemas de aprendizaje. Este trabajo presenta un análisis relacional basado en modelos de ecuaciones estructurales de dos componentes fundamentales del proceso de aprendizaje de niños con TEA, índice de coeficiente intelectual (ICI) y procesamiento cognitivo (PC). Se concluye que existe una relación directa entre ambos constructos, a mayor ICI mayor capacidad de PC.
La radio como herramienta de orientación escolar para fortalecer la convivencia
Authors:   Universidad Pedagógica y Tecnológica de Colombia, BALAGUERA Angela , FORERO Aracely
Published: December 2020

Al evidenciar problemas de convivencia que se manifiestan en la cotidianidad escolar y al interior de las familias que hacen parte de la Institución Educativa Matilde Anaray, sumado a la situación de “educación en casa” surge la necesidad de crear un espacio para brindar herramientas desde la Orientación Escolar a padres, madres y cuidadores para seguir con el proceso educativo mitigando asì situaciones adeversas en la convivencia de las familias rurales, utilizando la radio como medio masivo en dicho contexto.
Hirshfeld Surface Analysis and Interaction Energy Calculations of Bis(4-chlorophenylacetate)bis(pyridine-4-carboxamide)Zinc(II)
Authors: ÖZBEK Füreya Elif , SERTÇELİK Mustafa , YÜKSEK Mustafa
Published: December 2020

Hirshfeld surface analysis has been widely used in crystallography in recent years to investigate intermolecular interactions and to determine the contribution of these interactions to the crystal lattice. Fingerprint plots, which are given as color plots, present quantitative results of the types of intermolecular interactions in a molecule. In this study, we investigated intermolecular interactions and energy frameworks of Zn(II) 4-chlorophenylacetate containing pyridine 4-carboxamide complex by using CrystalExplorer program. Intermolecular interactions of the complex were determined using Hirshfeld Surface analysis. The intermolecular interaction energies of the complex were calculated using CE-HF/3-21G, CE-HF/6-31G (d), CE-HF/6-31G (d,p), CE-MP2/3-21G, CE-MP2/6-31G (d), CE-MP2/6-31G (d,p), CE-B3LYP/3-21G, CE-B3LYP/6-31G (d), CE-B3LYP/6-31G (d,p), CE-DFT/3-21G, CE-DFT/6-31G (d) and CE-DFT/6-31G (d,p) energy models that involved in CrystalExplorer (CE) program. The estimation of the intermolecular interactions and energies of the complexes is very important for the classification and investigation of their application areas.
Determination of Cytotoxicity of Zinc 2-Bromobenzoate with Nicotinamide and N,N'-Diethylnicotinamide Complexes
Authors: AKBABA Giray Buğra
Published: December 2020

Benzoic acid and its derivatives and their metal complexes, which have antimicrobial, anticancer, antituberculosis and antioxidant properties, are biologically active molecules. Although there are many studies on the biological activity of these compounds, studies on the determination of their toxicity are limited. In the presented study, the cytotoxic properties of the previously synthesized diaquabis(2-bromobenzoato-κO)bis(nicotinamide-κN1)zinc(II) (ZnBrBANA) and diaquabis(2-bromobenzoato-κO)bis(N,N'-diethylnicotinamide-κN1)zinc(II) (ZnBrBADENA) complexes were investigated. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, a colorimetric method, was used to determine the cytotoxicity of complexes on human peripheral lymphocyte cells. Besides, cytotoxicity of dimethylsulfoxide (DMSO) which is crystal solvent and 2-bromobenzoic acid (BrBA), nicotinamide (NA), and N,N'-dietyhlnicotinamide (DENA) which are starting compounds of the complexes was also evaluated. According to the results of MTT method, It has been determined that both complexes and starting components except BrBA cause cytotoxicity on lymphocyte cells at the concentration range of 62.5-500 ppm. In addition, it was determined that the BrBA and DMSO at the same concentration range do not show any cytotoxic effect on lymphocyte cells. It was observed that the synthesized complexes were more toxic at each concentration than the starting components. Therefore, the toxic effects of the complexes used as drug active ingredients should be followed up with new studies.
analogia jurídica na aplicação da regulamentação de visitas aos animais de estimação após o divórcio ou a dissolução de união estável
Authors: Ferreira Adriano Fernandes
Published: December 2020

O presente artigo propõe-se a analisar o instituto da interpretação analógica aplicada à regulamentação do direito de visitas aos animais domésticos após a separação, levando em consideração a posição do Superior Tribunal de Justiça, que em decisão inédita sobre o tema, no julgamento do REsp 1.797.175/SP, atribuiu dignidade e direitos aos animais não-humanos e à natureza, o que implica também no reconhecimento do seu status jurídico de sujeitos de direitos, bem como do projeto de lei da Câmara dos Deputados n° 27, de 2018, que prevê a aplicação da natureza sui generis aos mesmos. O divórcio causa transtornos entre o casal, filhos e os outros membros da família, incluídos aí os animais de estimação. A analogia usada na disputa sobre a forma de lidar com os animais de estimação em divórcios e dissoluções se dá com o instituto da guarda e da regulamentação de visitas que, muito embora tenha sido criado para a tutela de filhos menores, mostra-se adequado porque define questões, tais como a convivência, alimentos e manutenção dos incapazes, questões essas muito semelhantes à dos animais domésticos. Após análise da jurisprudência e dos projetos de lei é possível visualizar um movimento em direção da pacificação da situação da custódia dos animais de estimação quando ocorre a separação de seus tutores.
novo direito constitucional de proteção ao consumidor
Authors: Pagliarini Alexandre Coutinho , Teixeira Maria Fernanda A. S. H.
Published: December 2020

O artigo tem por objetivo geral a análise do novo Direito Constitucional e a atuação do Poder Judiciário em matéria de políticas públicas destinadas à proteção do consumidor. O texto discorre, previamente, sobre os aspectos gerais do novo Direito Constitucional, também denominado neoconstitucionalismo, e sua perspectiva no auxílio do desenvolvimento do sistema normativo para então versar, na sequência, sobre a consolidação constitucional e a judicialização da política no tocante à normatividade estatal e o posicionamento do Poder Judiciário frente ao resguardo da proteção do consumidor como um direito fundamental. Ao final, é possível verificar que a atuação jurisdicional para a efetivação de políticas públicas voltada à proteção do consumidor deve ocorrer sempre que houver violação à norma, a fim de que os consumidores possam ser socorridos pelo Poder Judiciário para o resguardo dos seus direitos e não fiquem marginalizados. Trata-se este estudo de análise empírico-teórica, com a utilização de metodologia qualitativa.
Instrumentos procedimentais no estado socioambiental e democrático de direito
Authors: Souza Janderson de Paula , Nolasco Loreci Gottschalk
Published: December 2020

Na perspectiva de efetividade dos direitos ambientais consagrados pela Constituição Federal de 1988, que se propôs o nascedouro do Estado Democrático de Direito de natureza sócio-econômico-ambiental, com o dever de criar políticas públicas visando a melhoria qualitativa de sua população. Pari passu à degradação ambiental, a má distribuição dos recursos naturais e a injustiça social, originou-se a “Justiça Ambiental” advinda dos movimentos sociais a partir da década de 1980, trazendo à Constituição Federal e sua normatividade, uma perspectiva procedimental. Através do método de revisão bibliográfica, documental e jurisprudencial, a pesquisa objetivou entender os institutos de participação popular, mormente, a participação popular dos grupos vulneráveis aos impactos ambientais, para garantir a eficácia da Justiça Ambiental no Brasil, cabendo ao Poder Público (Estado) adotar ações e metas, juntamente com a sociedade civil, que cumpram com os objetivos nacionais e internacionais de desenvolvimento, no viés econômico-social-ambiental.
Compliance
Authors: Souza Filho Miguel Rafael da Silva , Pereira Maria Marconiete Fernandes
Published: December 2020

O termo Compliance está cada vez mais evidente nas organizações como forma de cumprimento das normas relacionadas às suas atividades, interligado ao programa de integridade para fins de fortalecer os processos de governança corporativa e a sustentabilidade dos negócios. Esta pesquisa foi desenvolvida através de revisão bibliográfica com abordagem qualitativa, em uma operadora de plano de saúde do nordeste brasileiro. Para aprimorar sua gestão através da implementação do Compliance e ampliar os relacionamentos norteados pela ética e integridade, a operadora deve atender ao ambiente regulatório, prevenir e coibir a ocorrência de condutas ilícitas, incentivando a detecção e mitigação de seus riscos. O trabalho aborda propostas de soluções em que se optou pela execução das atividades por comissão específica multidisciplinar, estruturadas em nove pilares do programa de integridade. Por meio de técnicas de observação, através de checklist, identificou-se que operadora necessita gerir seus principais riscos e fortalecer seus controles internos, formalizando suas diretrizes por meio de políticas e realizando treinamentos constantes para garantir a efetividade de seu programa de integridade e consequentemente atender todos os requisitos da Resolução Normativa n°443/2019 da agência nacional de saúde suplementar (ANS).
Beneficial effects of Enterococcus faecium EF9a administration in rabbit diet
Authors: Pogány Simonová Monika , Lauková Andrea , Chrastinová Ľubica , Plachá Iveta , Szabóová Renáta , Kandričáková Anna , Žitňan Rudolf , Chrenková Mária , Ondruška Ľubomír , Bónai András , Matics Zsolt , Kovács Melinda , Strompfová Viola
Published: December 2020

Forty-eight rabbits aged five weeks (Hycole breed, both sexes) were divided into experimental (EG) and control (CG) groups, 24 animals in each, and fed a commercial diet with access to water ad libitum. Rabbits in EG had Enterococcus faecium EF9a probiotic strain added to their drinking water (1.0×109 colony forming units/mL 500 μL/d/animal) for 28 d (between 35 and 63 d). The experiment lasted for 42 d. The animals remained in good health condition throughout the experiment, and no morbidity and mortality was noted. There was a higher live weight at 63 d of age (+34 g; P<0.0001), final live weight at 77 d of age (+158 g; P=0.0483), and average daily weight gain between 63 and 77 d of age in the EG group rabbits than in CG group rabbits (+8 g/d; P<0.0001). No significant changes in caecal lactic acid and total volatile fatty acid concentrations, jejunal morphological parameters and phagocytic activity were noted during the treatment. The tested serum parameters were within the range of the reference values. EF9a strain sufficiently established itself in the rabbit’s gastrointestinal tract. At 63 d of age, a significant decrease in coliforms (P<0.05), coagulase-positive staphylococci (P<0.01), pseudomonads (P<0.01) and coagulasenegative staphylococci (CoNS, P<0.001) was noted in the faeces of the EG group rabbits compared to the CG rabbits. Antimicrobial effects of EF9a strain in the caecum against coliforms (P<0.001), CoNS (P=0.0002) and pseudomonads (P=0.0603) and in the appendix (coliforms, P<0.05) were detected.
Patterns of calcium channel (TRPV6) expression in rabbit gut epithelium
Authors: Ranjan Rajesh , Das Partha , Batabyal Subhashish , Minj Arpana Priyanka
Published: December 2020

The present study was undertaken to explore the immunohistochemical localisation of TRPV6 calcium channels in rabbit gut epithelium that are actively involved in calcium absorption. To undertake the research, twelve apparently healthy adult female rabbits with a body weight between 1.0 to 1.5 kg were procured, acclimatised and divided into two groups: control and test. Both groups were kept on same feed along with exogenous calcium supplementation in test group animals only. The serum calcium level revealed that normally a high value of serum calcium is maintained in the rabbit as compared to other mammals, thus indicating that the homeostatic mechanism might be poorly developed. Immunohistochemistry and reverse transcription polymerase chain reaction analysis revealed that the caecum was the site of maximum calcium absorption in rabbit, followed by the duodenum and jejunum. The expression pattern of TRPV6 protein/mRNA was weaker in test group animals than in the control group, indicating that the channel was functional in low calcium concentration in the gut.
Cambodia
Authors:   International Monetary Fund. Statistics Dept.
Published: December 2020

As part of Cambodia’s participation in the Japan-funded Government Finance Statistics (GFS) and Public Sector Debt Statistics (PSDS) project for selected Asian countries (JSA3),1 this mission conducted an in-country workshop (December 2–4, 2019) and provided follow-up technical assistance (TA) on GFS and PSDS (December 5–13, 2019).2 Both activities were aimed at strengthening compilation and dissemination of fiscal data in line the GFS Manual 2014 (GFSM 2014) and the PSDS: Guide (PSDSG) to support surveillance and decision making. At the request of the authorities, the TA mission participated in the inter-agency workshop on data consistency in macroeconomic statistics conducted by the Ministry of Economy and Finance (MEF) during December 5–6, 2019.
Trinidad and Tobago
Authors:   International Monetary Fund. Monetary and Capital Markets Department
Published: December 2020

The FSAP work was mostly conducted prior to the COVID-19 crisis. Given the FSAP’s focus on medium-term challenges and tail risks, its findings and recommendations for strengthening policy and institutional frameworks remain pertinent. As the growth projections were significantly revised downward since the FSAP, the quantitative risk analysis on bank solvency was complemented to include illustrative scenarios to quantify the possible implications of the COVID-19 shock on bank solvency.
Niger
Authors:   International Monetary Fund. African Dept.
Published: December 2020

With one of the world’s lowest levels of human development, Niger has enormous needs but only limited own resources to meet them. Insecurity in the Sahel, climate change, and low prices for its uranium exports are further challenges. Niger’s economy performed reasonably well before the outbreak of the COVID-19 pandemic. GDP growth exceeded 6 percent and large foreign projects were attracted, notably a pipeline for the export of crude oil. A new government will take office in April 2021.
Guinea- Bissau
Authors:   International Monetary Fund. Statistics Dept.
Published: December 2020

A technical assistance (TA) mission on external sector statistics (ESS) visited Guinea-Bissau during February 3 to 7, 2020. The mission was conducted in Bissau at the request of the National Directorate for Guinea-Bissau of the Central Bank of West African States (BCEAO-DNGB). The mission assisted in improving the quality of ESS. This was the fourth and final mission under the JSA-AFR project for improving ESS in 17 francophone countries of Central and West Africa, financed by the government of Japan and administered by the IMF.
Guinea
Authors:   International Monetary Fund. Statistics Dept.
Published: December 2020

The fourth and last technical assistance (TA) mission for the benefit of Guinea,
under the project on improving external sector statistics (ESS) in 17 Francophone countries
of West and Central Africa, funded by the Japanese government and administered by the
IMF, took place in Conakry during August 26–30, 2019. The mission was hosted by the
Central Bank of the Republic of Guinea (BCRG), which is the institution responsible for compiling
the ESS. The main points addressed by the mission were to support (i) the process of
participating in the coordinated direct investment survey (CDIS), (ii) the detailed technical work
for improving the current and financial accounts, and (iii) the implementation of
recommendations from previous missions.
Economic Prospects and Policy Challenges for the GCC Countries
Authors:   International Monetary Fund. Middle East and Central Asia Dept.
Published: December 2020

The COVID-19 pandemic is having far-reaching consequences for the global economy. Measures to contain the spread of the virus have led to sharp declines in economic activity across the globe, particularly in 2020Q2. The hardest hit sectors have been those requiring intensive human contact, such as tourism, transportation, services, and construction, while, in general, IT-intensive activities have fared better. The economic contraction is most significant in advanced economies.
The GCC countries face a double impact from the coronavirus and lower oil prices. GCC authorities have implemented a range of appropriate measures to mitigate the economic damage, including fiscal packages, relaxation of monetary and macroprudential rules, and the injection of liquidity into the banking system, and there are recent signs of improvement. Low oil prices have caused a sharp deterioration of external and fiscal balances, and fiscal strains are evident in countries with higher debt levels.
Guinea
Authors:   International Monetary Fund. African Dept.
Published: December 2020

Real growth is expected to reach 5.2 percent in 2020 as the severe impact of
the pandemic in the country was partially mitigated by a resilient mining sector.
Presidential elections were held on October 18, giving President Condé an outright
victory. Such results were contested by the opposition and followed by violent
demonstrations and unrest. Since the Constitutional Court validated the electoral results
on November 7, the situation has remained calm.
Neue Ansätze für Fahrerassistenzsysteme mit Regelung der Längsund Querdynamik
Authors: Ackermann Carlo
Published: December 2020

In dieser Arbeit werden Ansätze zur Unfallvermeidung vorgestellt, die Eingriffe in die Längs- und Querdynamik des Fahrzeugs nutzen. Betrachtet werden dabei Unfälle, die durch zu hohe Geschwindigkeit verursacht werden. Zum einen sind dies Auffahrunfälle und zum anderen zu schnelles Fahren in Kurven. In beiden Fällen werden hochdynamische Manöver zur Unfallvermeidung benötigt. Daher sind genaue Kenntnisse über das Fahrzeug und dessen Zustände nötig. Hierfür werden Parameter- und Zustandsschätzverfahren genutzt. Um Auffahrunfälle zu vermeiden, werden drei verschiedene Verfahren gezeigt, die Brems- oder Ausweichmanöver zur Kollisionsvermeidung nutzen. Für ein einzelnes Fahrzeug, welches mit unangepasster Geschwindigkeit in eine Kurve fährt, werden zwei Unfallvermeidungsstrategien gezeigt, welche das Fahrzeug durch geeignete längsdynamische Eingriffe in einen sicheren Fahrzustand zu überführen.

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Theory and Application of the Lang-Gilles Observer for Distillation Processes
Authors: Stuckert Maxim
Published: December 2020

This thesis deals with the nonlinear full state observer for distillation processes first introduced by Lang and Gilles in 1990. The observer is very attractive in practice as it requires only few temperature measurements in each section of a distillation column and only few observer parameters need to be tuned. We provide conditions under which this observer converges and derive a simple rule for the tuning of the observer parameters. We also give a method for the on-line estimation of the Murphree tray efficiency. Such on-line methods are rarely found in ­literature. In a sequence of simulation studies, we investigate the capabilities of the observer for the estimation of the tray efficiency and for model-predictive control. The simulation studies are based on distillation processes for separation of multicomponent mixtures and one of the studies introduces a plant-model mismatch.

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Temperaturgestützte Regelung der Eisenschwammförderung in den Lichtbogenofen
Authors: Andersson Matthias
Published: December 2020

Geleitwort

Die Automatisierungstechnik ist ein komplexes und vielfältiges wissenschaftliches Gebiet. Am Institut für Automatisierungstechnik der Helmut-Schmidt-Universität Universität der Bundeswehr Hamburg wird zum einen die Entwicklung neuer automatisierungstechnischer Methoden vorangetrieben, zum anderen wird die Automatisierung komplexer Produktionsprozesse bearbeitet. Die reale Umsetzung im Rahmen technischer Prozesse, insbesondere industrieller Produktionsprozesse, ist das Ziel des ingenieurwissenschaftlichen Wirkens und zugleich Gradmesser für seinen Erfolg. Der Elektro-Lichtbogenofen ist seit vielen Jahren Gegenstand der wissenschaftlichen Arbeit an der Professur für Prozessdatenverarbeitung und Systemanalyse. Mit Hilfe mathematischer Modellbildung gelingt es Schritt für Schritt, den Zustand des Schmelzprozesses in Echtzeit quantitativ zu erfassen. Darauf aufbauend wird die umfassende Automatisierung Regelung des Prozesses vorangetrieben. Herr Dr. Andersson hat sich in s...
Model-based diagnosis of electronic cooling fan drive systems
Authors: Pagel Michael
Published: December 2020

Kurzzusammenfassung:

Model-based diagnosis of electric cooling fan drive systems is a contribution to the field of fault detection and diagnosis for electrically driven engine cooling fans. Its main focus is on the online gathering and determination of important parameters and internal states. The developed methods for fault detection and diagnosis are characterized by resource and computing efficient design and by a low application effort, drastically reducing the costs for transferring them to

other applications. Novel algorithms are presented for determination of the winding resistance, the flux linkage over angle and the equivalent series resistance. Based on these algorithms, a new and innovative approach for determination of the magnet temperature is proposed, utilizing the winding temperature, which is derived without requiring an additional temperature sensor. Furthermore, methods are presented for detection of a demagnetization event, detection of an aged DC-link capacitor and...
Explizites Modell für Benutzungsschnittstellen im gesamten Lebenszyklus einer leittechnischen Anlage
Authors: Jeromin Holger
Published: December 2020

Diese Arbeit schlägt ein neues Konzept für die Erstellung, Wartung und den Gebrauch von Benutzungsschnittstellen für prozesstechnische Anlagen vor. Die gesamte Darstellung wird als HMI-Modell hinterlegt. Dafür wurden nicht nur für alle Grafikelemente (Text, Rechteck, Kreis …), sondern auch für die gesamte Interaktion mit dem Prozess und dem Bediener Modellbausteine (als Metamodellbausteine) definiert. Dies erleichtert die automatische Erstellung und Veränderung der gesamten Darstellung. Dieses Metamodell ist für größte Zukunftssicherheit technologieunabhängig definiert. Um ein solches HMI-Modell einer Anlage darzustellen wird ein Anzeigesystem benötigt, welches die wenigen definierten Metamodellbausteine zur Laufzeit interpretiert. Dieses Anzeigesystem kann bei Bedarf im Laufe der Lebensdauer der technischen Anlage in neuen Technologien implementiert werden.

Inhaltsverzeichnis

Vorwort III

1 Einleitung 1

2 Hintergrund und Motivation 3 2.1 Stand der Technik  . . . . . . 4

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Entwicklung, Beobachtung und Steuerung integrierter, quasi-kontinuierlicher pharmazeutischer Produktionsprozesse mit Methoden der Multivariaten Datenverarbeitung
Authors: Borchert Sven-Oliver
Published: December 2020

Die vorliegende Arbeit befasst sich mit Aspekten einer modernen Bioverfahrenstechnik am ­Beispiel von Prozessen zur Herstellung rekombinanter potentieller Malariavakzine. Dabei ­wurden zwei quasi-kontinuierliche Prozesse aus herkömmlichen Batch-Unit Operationen auf­gebaut, in denen die Anwendung von Process Analytical Technology im Vordergrund steht. Das Hauptaugenmerk dieser Arbeit lag dabei auf einer Implementierung der Multivariate Data ­Analysis zum Monitoring und zur Evaluierung des zyklischen Prozessablaufes und seiner Reproduzierbarkeit. Im Bereich der Principal Component Analysis wurde die Methode der Prozessüberwachung mit dem Golden Batch-Tunnel angewendet. Mit dem Golden Batch-Ansatz ­wurden Methoden zur Prozessprädiktion implementiert und mit einer Model Predictive Multi­variate Control auch zur Steuerung von realen Prozesses erprobt. Darüber hinaus wurde die MVDA zur Prädiktion von Medienkomponenten sowie deren zellspezifische Reaktionsraten aus klassischen Onli...
Simulation von Rissen in höchstfesten Stahlblechen mit einem Trefftz-Element für Mixed-Mode-Beanspruchungen
Authors: Hartmann Johannes
Published: December 2020

Zusammenfassung

In der vorliegenden Arbeit wird ein spezielles hybrides Trefftz-Element zur Simulation von Rissen in dünnen Platten unter Modus III-Belastung entwickelt. Das Element wird zur Erweiterung etablierter Modus I/II-Elemente verwendet und kann zur Simulation beliebiger Belastungen an der Rissspitze im Rahmen der linear-elastischen Bruchmechanik eingesetzt werden. Die Elementformulierung basiert auf der bekannten analytischen Lösung der Bipotentialgleichung aus der Kirchhoffschen Plattentheorie. Mit Hilfe der Funktionentheorie wird die allgemeine Lösung an das spezielle Problem einer Platte mit Innenriss angepasst, sodass die Spannungsrandbedingungen entlang des Rissufers exakt erfüllt werden. Die Verschiebungsrandbedingungen am verbleibenden Elementrand werden durch ein erweitertes elastisches Potential berücksichtigt. Die freien Parameter des Lösungsansatzes ergeben sich schließlich aus der Minimierung des erweiterten Potentials. Die Validierung der neuentwickelten E...
Systemorientierte Impedanzsimulation eines Hochvolt-Bordnetzes am Beispiel Kraftfahrzeug
Authors: Schörle Sören
Published: December 2020

Die Bedeutung von Hochvolt-Bordnetzen hat aufgrund der steigenden Anzahl von Elektro- und Hybridfahrzeugen stark zugenommen. Um eine sichere Funktion und eine gute Spannungsqualität zu gewährleisten, ist eine frühzeitige Absicherung der Bordnetze mithilfe einer Simulation notwendig. Das vorliegende Buch beschreibt einen Weg, um das Impedanzverhalten solcher Netze mit vertretbarem Aufwand zu simulieren und Resonanzen aufzuspüren. Darüber hinaus zeigt der Verfasser auf, wie es gelingt, die Wechselspannungsanteile auf dem Bordnetz zu simulieren, um sie in Hinblick auf Funktion und Spannungsqualität bewerten zu können. Mithilfe dieser Vorgehensweise gelingt es, die Auslegung der Komponenten sowie die Architektur des Gesamtnetzes vor der Realisierung zu bewerten, das Optimierungspotential darzulegen und die Herausforderungen zwischen kurzer Entwicklungszeit und robuster Auslegung des Netzes frühzeitig zu erkennen.

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Modulare und skalierbare mehrsträngige Antriebssysteme für Elektrofahrzeuge
Authors: Müller-Deile Felix
Published: December 2020

Kurzzusammenfassung

Die vorliegende Arbeit entstand während meiner Tätigkeit als wissenschaftlicher Mitarbeiter am Institut für Antriebssysteme und Leistungselekronik (IAL) der Leibniz Universität Hannover. Mein aufrichtiger Dank gilt Herrn Prof. Dr.-Ing. Bernd Ponick, der mir die Möglichkeit gab, als wissenschaftlicher Mitarbeiter am IAL zu arbeiten. Die mit ihm geführten zahlreichen fachlichen Diskussionen trugen maßgeblich zum Gelingen dieser Arbeit bei. Herrn Prof. Dr.-Ing. Markus Henke vom Institut für Elektrische Maschinen, Antriebe und Bahnen der Technischen Universität Braunschweig danke ich für das der Arbeit entgegengebrachte Interesse und die Übernahme des Koreferats. Bei Herrn Johannes Heseding bedanke ich mich für die intensive wissenschaftliche Zusammenarbeit. Ohne Unterstützung der Firma Robert Bosch GmbH, bei der die E-Maschinen-Prototypen gefertigt wurden, wäre eine messtechnische Validierung der Modelle nicht möglich gewesen. Bei allen Mitarbeitern des ...
Ein Beitrag zur einheitlichen Modellierung und durchgängigen Nutzung fertigungstechnologischen Wissens im Produktentwicklungsprozess
Authors: Roos Michael
Published: December 2020

Kurzfassung

Unter dem Begriff des Design for Manufacture werden eine Vielzahl an Produktentwicklungsansätzen zusammengefasst, die den Entwickler vor allem im Hinblick auf das Sicherstellen der Herstellbarkeit technischer Produkte unterstützen. Es mangelt jedoch an Ansätzen, die die noch ungenutzten Möglichkeiten einer Fertigungstechnologiezur Realisierung oder Verbesserung des technischen Produkts aufzeigen. Diese ungenutzten Möglichkeiten können der Ausgangspunkt für neuartige fertigungsintegrierende Produktlösungen sein, die sich z. B. durch eine verbesserte Funktionserfüllung, einen erhöhten Leichtbaugrad oder auch eine erhöhte Lebensdauer auszeichnen.

Im Rahmen dieser Arbeit wird der Grundstock für die Systematisierung einer fertigungsintegrierenden Produktentwicklung gelegt, mittels der die noch ungenutzten Möglichkeiten einer betrachteten Fertigungstechnologie systematisch erschlossen werden können. Dazu wird eine Methodik vorgestellt, die den Produktentwickler gezi...
Konzept zur flexiblen Automatisierung von Instandhaltungsprozessen kleinster Losgrößen in der Luftfahrtbranche
Authors: Steinbach Jan Philipp
Published: December 2020

Kleinste Losgrößen, viele Bauteilvarianten und ein hoher Anteil manueller Tätigkeiten sind charakteristisch für die Instandhaltungsprozesse in der Luftfahrtbranche. In der vorliegenden Arbeit wird ein Gesamtkonzept zur Automatisierung derartiger Prozesse vorgestellt. Das Konzept greift den Trend in der Automatisierungstechnik nach mehr Flexibilität auf und sieht den Einsatz einer prozessangepassten Automatisierungslösung in Form eines Informations- und Kommunikationssystems auf Prozess­ebene vor. Ein solches ermöglicht die gezielte Unterstützung des Facharbeiters durch die systematische Wiederverwendung von Prozesswissen und die Integration eines Systems zur Fehlervermeidung. Die Anwendung des Konzeptes und seiner einzelnen Lösungskomponenten wird anhand von Teilprozessen der Instandhaltung aufgezeigt.

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Ein Beitrag zur wissensbasierten Unterstützung bei der Auswahl technischer Ressourcen
Authors: Riedel Maik
Published: December 2020

Kurzfassung:

Im Engineering verfahrenstechnischer Anlagen treffen steigende Anlagen- und Gerätekomplexität, kombiniert mit einer stark wachsenden Anzahl technischer Lösungsmöglichkeiten, auf einen ständig zunehmenden Kosten- und Zeitdruck vor dem Hintergrund einer anspruchsvollen, globalen Wettbewerbssituation. Diese Problematik gilt insbesondere für die im Engineering der notwendigen Automatisierungstechnik einbezogene Aufgabenstellung der Auswahl geeigneter technischer Ressourcen in der Feldebene. Diese Auswahl stellt aufgrund der Häufigkeit ihrer Durchführung, aufgrund der Bedeutung der technischen Ressourcen für die Wirtschaftlichkeit und Qualität des Anlagenbetriebs und wegen des mit der Auswahl verbundenen Fehlerrisikos einen bedeutenden Kostenfaktor und -hebel für das Engineering und die gesamte Anlagenplanung dar. Gleichwohl ist die Auswahl, unter Berücksichtigung vielfältiger, spezifischer Bedingungen und Anforderungen des Einsatzortes sowie des Anwenders, eine se...
Methoden zur Analyse parasitärer elektrostatischer Effekte in mikroelektromechanischen Systemen
Authors: Hald Axel
Published: December 2020

Im Entwurf von mikroelektromechanischen Systemen (MEMS) gewinnen die parasitären elektrostatischen Effekte immer mehr an Einﬂuss. Auslöser hierfür ist der wirtschaftlich bedingte Zwang zur Minimierung von Chipﬂäche, der neben einer ständigen Strukturverkleinerung auch dazu führt, dass die Anschlussleitungen in sehr enger Nachbarschaft zu den mechanisch aktiven MEMS Strukturen geführt werden. Dies erfordert eine hochgenaue Analyse der elektrostatischen Verhältnisse.

Die vorliegende Arbeit liefert hierzu mehrere Beiträge. Eine 2.5D-Prozess-Simulation ermöglicht eine effziente und präzise Extraktion von Kapazitätswerten auf Basis von Analyse-Werkzeugen aus dem IC Entwurf. Mit einem neuartigen Verfahren zur Strukturerkennung lassen sich diese Werte, vergleichbar zu einem LVS bei ICs, erstmals lokal zuordnen, wodurch gezielte Layoutoptimierungen möglich werden. Eine weitere Neuerung ist die Berücksichtigung bewegungsabhängiger Parasiten.

Inhaltsverzeichnis

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Ein neues Verfahren zur strömungstechnischen Simulation von Gasnetzen
Authors: Hielscher Andreas
Published: December 2020

Seit einigen Jahren werden zunehmende Schwankungen der Gasbeschaffenheit, insbesondere des Brennwerts, in Erdgasverteilnetzen beobachtet und damit die korrekte Abrechnung von Endkunden erschwert. In dieser Arbeit wird ein neues Verfahren zur strömungstechnischen Simulation von Erdgasverteilnetzen entwickelt, welches sich auch für instationäre Strömungen eignet. Dieses Verfahren wird zur Brennwertverfolgung eingesetzt und zeichnet sich durch hohe Genauigkeit sowie kurze Rechenzeit aus. Eine Validierung des Rechenmodells erfolgt sowohl auf Basis von Messungen mit Prozessgaschromatografen als auch durch einen Vergleich mit etablierter Simulationssoftware. Zusätzlich wird erstmals eine Unsicherheitsberechnung für die an den Ausspeisestellen des Gasnetzes ermittelten Brennwerte auf Basis einer Monte-Carlo-Simulation nach dem „Guide to the Expression of Uncertainty in Measurement“-Leitfaden durchgeführt. Der Vergleich mit einer Sensitivitätsanalyse bestätigt die Ergebnisse der M...
Detection of Moving Objects for Aerial Surveillance of Arbitrary Terrain
Authors: Munderloh Marco
Published: December 2020

The detection of moving objects in aerial video sequences is a common application in safety and environmental monitoring. The challenge is the non-static camera, which is moving together with an aerial vehicle. To detect local changes due to movement of ground objects in such a scenario, the displacements of image pixels resulting from the motion of the camera need to be compensated. The most common method is to use a projective transformation and assume the observed scene to be planar. However, this is only valid for very high altitudes. It fails otherwise and results in falsely detected local motion. This work addresses the problem in two ways. After analyzing the error resulting from motion parallax, two detectors for moving objects in non-­planar scenes are presented. One is based on a motion parallax model and one on a smooth optical flow approach. Following this, a motion compensation method for non-planar scenes is presented, allowing the use of image differences based methods ...
Informationstechnische Verbesserung des Zahnputzvorgangs
Authors: Prestel Dietmar
Published: December 2020

Fertigkeiten für eine gute Mundhygiene bedeuten das Erreichen aller für die Zahn- und Mundgesundheit relevanten Flächen bei der Zahnreinigung als auch Zahnputztechniken, die gleichermaßen eine hohe Effektivität besitzen und das Weichgewebe vor Verletzung schützen. Mithilfe von Sensordaten aus Beschleunigungsmessungen und deren Verrechnung untereinander und mit der Kombination aus Eingangsdaten verschiedener Geräte wird dargelegt, wie die Bestimmung von Bürstort und elementarer Bürstbewegung gelingen kann. Es werden mehrere Vorschläge entwickelt und diskutiert, die Benutzerführung durch Kombination eines mithilfe der Anzeigegeräte generierten Spiegelbildes mit darüber liegenden transparenten Symbolanzeigen und Texten zu optimieren. Auch Möglichkeiten einer offline erfolgenden nachträglichen Weiterverarbeitung der Sensor- und Videodaten beispielsweise für Forschungszwecke oder für die zahnmedizinische Praxis werden erörtert. Hierbei wird verdeutlicht, dass die entwickel...
Temporally Consistent Superpixels
Authors: Reso Matthias
Published: December 2020

This thesis addresses the field of early stage video preprocessing in order to improve and accelerate subsequent processing steps like semantic video segmentation or video-based object tracking. A framework is proposed to segment video streams into temporally consistent superpixels in order to create a representation of the video with far less image primitives than the voxelgrid. The proposed energy-minimization-based approach utilizes a novel hybrid clustering strategy for a multidimensional feature space. Techniques are presented to ensure the consistency of the superpixel flow with the image movement while considering visual occlusion and disocclusion

effects. The effectiveness of the proposed method is shown by a comparison to state-of-theart spatio-temporal oversegmentation algorithms using established benchmark metrics. Additionally, its effectiveness is further demonstrated by showing its application on the real-world scenario of interactive video segmentation.

Kurzfassung

Eine ...
Analysis of Affine Motion Compensated Prediction and its Application in Aerial Video Coding
Authors: Meuel Holger
Published: December 2020

Kurzzusammenfassung:

This work deals with affine motion-compensated prediction (MCP) in video coding. Using the rate-distortion theory and the displacement estimation error caused by inaccurate motion parameter estimation, the minimum bit rate for encoding the prediction error is derived. Similarly, a 4-parameter simplified affine model as considered for the upcoming video coding standard VVC is analyzed. Both models provide valuable information about the minimum bit rate for encoding the prediction error as a function of the motion estimation accuracy.

Although the bit rate in MCP can be reduced by using a motion model capable of describing the motion in the scene, the total video bit rate may remain high. Thus, a codec independent coding system is proposed for aerial videos, which exploits the planarity of such sequences. Only new emerging areas and moving objects in each frame are encoded. From these, the decoder reconstructs a mosaic, from which video frames are extracted again. Th...
Backprojection Autofocus of Large Ships with Arbitrary Motion for Synthetic Aperture Radar
Authors: Sommer Aron
Published: December 2020

Radar images of the open sea taken by airborne synthetic aperture radar (SAR) show typically several smeared ships. Due to their non-linear motions on a rough sea, these ships are smeared beyond recognition, such that their images are useless for classification or identification tasks. The ship imaging algorithm presented in this thesis consists of a fast image reconstruction using the fast factorized backprojection algorithm and an extended autofocus algorithm of large moving ships. This thesis analysis the factorization parameters of the fast factorized backprojection algorithm and describes how to choose them nearoptimally in order to reconstruct SAR images with minimal computational costs and without any loss of quality. Furthermore, this thesis shows how to estimate and compensate for the translation, the rotation and the deformation of a large arbitrarily moving ship in order to reconstruct a sharp image of the ship. The proposed autofocus technique generates images in which the ...
Plant Classification and Position Estimation for Autonomous Field Robots
Authors: Haug Sebastian
Published: December 2020

This work presents new approaches to plant classifcation and plant position estimation to enable feld robot based precision agriculture. The developed methods are designed for challenging real world feld situations with small crop plants, presence of close-to-crop weed and overlap of plants. The plant classifcation system is able to distinguish two or more plant classes in feld images without the need for error-prone plant or leaf segmentation. The plant

position estimation pipeline solves the generic problem of determining the position of both crop and weed plants only from image data. The combination of both methods allows feld robots to autonomously determine the type and position of plants in the feld to realize precision agriculture tasks such as single plant weed control. Experiments with a feld robot prove the applicability of the presented methods for challenging feld scenarios encountered for example in organic vegetable farming.

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Reactor network synthesis with guaranteed robust performance
Authors: Zhao Xiao
Published: December 2020

In this work a systematic model-based approach for reactor network synthesis problem with guaranteed robust dynamic performance will be presented. The work is based on the superstructure approach and aims to find an optimal process flowsheet with determined connection patterns of reactors, reactor types, design parameters and operating conditions. In comparison to the classical design methods, certain specified dynamic properties are guaranteed simultaneously under parametric uncertainty. Structural alternatives in the flowsheet, i.e., how reactors are interconnected, as well as in the control system, i.e., how controlled and manipulated variables are paired, are subject to design degrees of freedom. It is allowed that idle reactors and controllers can appear in the reactor network superstructure, so that a fixed number of non-idle reactors and controllers does not have to be assumed as a priori. The optimal reactor network design in either open- or closed-loop is determined by solving...
Scrubbing System Design for CO2 Capture in Coal-Fired Power Plants
Authors: Heischkamp Elizabeth
Published: December 2020

Within the last decades a continuous tightening of environmental regulations has been observed in several countries around the world. These include restriction of anthropogenic CO2 emissions, since they are considered responsible for intensifying global warming. Coal-fired power plants represent a good possibility for capturing CO2 before it is emitted in the atmosphere, thereby contributing to combat global warming. This work focuses on reducing the CO2 emissions of such a power plant by 90 %. For this purpose a hard coal power plant is retrofitted with a chemical absorption using different solutions of piperazine promoted potassium carbonate. The resulting power plant’s efficiency losses have been accounted for. A comparison of different scenarios such as the variation of operating parameters offer an insight in detecting suitable operating conditions that will allow to minimize Efficiency penalties. Simulation details are provided along with a technical and an economic Analysis.

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Effect of Applying Green Marketing Mix Elements on Achieving Competitive Advantage - Case Study: Palestine Cellular Communications Co. JAWWAL
Authors: Salem Mohammed , Dalloul Ezzedine Abdel Moati , Tabasi Al-Baraa Akram , Harzallah Tariq Adel , Al-Habil Ahmed Riad , Maqt Youssef Ismail
Published: December 2020

This study aims to investigate the effects of applying green marketing mix elements in achieving the competitive advantage: an empirical study on the customers of Palestine Cellular Communications "Jawwal". The study highlights the application of green marketing mix and its four dimensions: the green product, the green price, the green promotion, and the green place, and its effect in attaining the competitive advantage. This will help the decision makers in Jawwal, working in the Gaza Strip, come up with importance of this modern marketing techniques and its role in increasing the environmental awareness and developing the social responsibility to offer an environmentally safe service to the customers and accomplish the competitive advantage which will lead the company to be the top between its competitors. The descriptive analytical method was used to reach the results of the study. The field of the study is the whole users of Jawwal services. The researchers distributed a questionnaire among 400 users of Jawwal using a random sample, then received back 383 questionnaires. The study presented a set of results and the most importantly: The application of green marketing mix elements represented in (the green product, the green price, the green promotion, and the green place) has a great role in achieving the competitive advantage of the company. This means using this marketing style will contribute in an effective way to make the company rank the best among its competitors.
O Ano da Pandemia ou o Ano de Todas as Crises
Authors: Heitor Maria João
Published: December 2020

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Vivekananda’s Views on Christianity and Islam
Authors: Prof. Dr. Nosheen Zaheer
Published: December 2020

Vivekananda was the Hindu revivalist of nineteenth century who preached the message of equality of all religions. In his lectures, he guided people to assimilation of religions and not their destruction. He emphasized on peace and harmony of religions that could only be attained through tolerance. This paper explores his claim of equality of religions from his writings regarding two religions - Christianity and Islam. Critical approach is utilized to identify the fact that either he is equating all religions or he is trying to submerge the non-Hindu religions in his philosophy of neo-Vedanta. Apparently, the tension between these two positions makes his theory of pluralism suspicious. In other words, his popular image of being a pioneer of religious pluralism needs to be reassesses by studying his writings and presentation of the beliefs, rituals, and practices of other religions, as well as, his practical interactions with the followers of different religions during his life. In this connection, it is important to explore how he perceives and depicts the personalities of Jesus Christ and Muhammad.
امثال القرآن کی ضرورت واہمیت
Authors: Shereen Hasan Sasoli  , Dr. Syed Bacha Agha
Published: December 2020

The Qur’an is the most-read book in the world. Revealed by Allah Almighty to Prophet Muhammad , and revered by Muslims as being Allah’s Final Scripture and Testament, its words have been lovingly recited, memorized and implemented by Muslims of every nationality ever since. The Quran is also the only holy book that can be memorized in its entirety by people of all ages and intellectual abilities – including non-Arabic speakers – which Muslims consider to be one of its miracles.

The Holy Quran is the source guide; the purpose of Similitude in Qur’an is to get a lesson. In each instance there is knowledge to mankind, it possesses a particular utility. Allah ta’aala has invited to all mankind to consider the Quran, as in the Holy Quran” Do they not then think deeply in the Qur'an, or are their hearts locked up (from understanding it)?”. This article explains deeply about the Importance of Similitude of Qur’an.