cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Ποσοτική εκτίμηση της τραχύτητας ασυνεχειών των πετρωμάτων με την βοήθεια πειραματικών μεθόδων και της γεωστατιστικής
Creators: name: Πατσούλης Γιώργος
Publisher: name: Technical University of Crete
Year: 2008

description: Μη διαθέσιμο
title: Updated recommended maximum levels for the addition of vitamins and minerals to food supplements and conventional foods: BfR Opinion No 009/2021 of 15 March 2021
Creators: name: Bundesinstitut Für Risikobewertung
Publisher: name: Bundesbehörden und Einrichtungen im Geschäftsbereich des Bundesministeriums für Ernährung und Landwirtschaft (BMEL)
Year: 2021
Subjects: subject: 000

description: BfR-Stellungnahmen, vol. 2021, no. 009
Additional file 1 of Interaction kinetics of peptide lipids-mediated gene delivery
Creators: name: Zhao, Yinan
name: Zhao, Tianyi
name: Du, Yanyan
name: Cao, Yingnan
name: Xuan, Yang
name: Chen, Huiying
name: Zhi, Defu
name: Guo, Shutao
name: Zhong, Fangli
name: Zhang, Shubiao
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Figure S1. (a) Transfection efficiency of lipoplexes against Hep-2 cells. GFP expression of GFP-N1 was mediated by liposomes LOrn1 and LOrn3 at the N/P ratios of 1:1, 3:1, 4:1, 6:1 and 8:1. The measurement was carried out in cells by using an inverted fluorescence microscope (10×10). (b) Transfection efficiency in Figure (a) was quantified by flow cytometry analysis. Figure S2. Cell viability assay of HeLa after treating with LOrn1/DNA and LOrn3/DNA lipoplexes for different time by MTT. Figure S3. Small angle x-ray scattering patterns of the lamellar LCα and columnar inverted hexagonal HC‖ phases of (a) LOrn1/DNA and (b) LOrn3/DNA lipoplexes at N/P ratios of 4:1 and 3:1, respectively. Figure S4. Effect of acid environment on lipid structure was detected by ESI-MS. (a) ESI-MS analysis of lipid under the pH of 7.0, (b) ESI-MS analysis of lipid under the pH of 5.5.
Radiative generation of metastable minima in a scalar-fermion model
Creators: name: Metaxas, Dimitrios
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: I consider a theory of a real scalar and a fermion field, with a Yukawa interaction and a potential term that admits two degenerate minima at the tree level. The quantum vacuum energy difference between these two vacua can be calculated using the renormalization group improved effective potential, and gives a finite, nonzero result, dependent on the relative strength of the scalar and the Yukawa interactions.
description: 16 pages, 2 figures, to appear in Phys. Rev. D, title changed in journal
Detektion der diabetischen small fibre Neuropathie durch Untersuchung von kornealen und intraepidermalen Nervenfasern von Thy1-YFP Mäusen
Creators: name: Leckelt, Janine
Publisher: name: Universität Rostock
Year: 2020
Subjects: subject: 500 Natural sciences
subject: 570 Life science
subject: 610 Medical sciences Medicine

description: Ziel dieser tierexperimentellen Studie an Thy1-YFP Mäusen war es, die morphologischen Veränderungen von kornealen und intraepidermalen Nervenfasern nach Induktion eines Diabetes mellitus zu untersuchen. In vivo wurden die kornealen Nervenfasern mittels corneal confocal Laser-Scanning Mikroskopie (CLSM) untersucht als auch ex vivo mittels Fluoreszenzmikroskopie. Korneale Nervenfasern der diabetischen Tiere degenerierten und regenerierten sich frühzeitig, während intraepidermale Nervenfasern morphologisch nach vierwöchiger Diabetes-Dauer und 8-wöchiger Insulintherapie unbeeinträchtigt blieben.
On the Origin of the Lorentz Transformation
Creators: name: Engelhardt, Wolfgang
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The Lorentz Transformation, which is considered as constitutive for the Special Relativity Theory, was invented by Voigt in 1887, adopted by Lorentz in 1904, and baptized by Poincaré in 1906. Einstein probably picked it up from Voigt directly.
description: 9 pages, pdf, short communication
title: Малогабаритная РЛС S/С-диапазона для охраны объектов
Creators: name: Жукова, Ирина
name: Кунец, Николай
name: Вахлачев, Николай
name: Трофимов, Александр
name: Кустов, Сергей
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: Описана реализация малогабаритной радиолокационной системы (РЛС) S/C-диапазона для охраны объектов. Актуальность разработки обусловлена наличием проблемы несанкционированного доступа на закрытые объекты, а также объекты энергетического сектора, такие как газо/нефтепроводы. Наибольшую опасность в плане незаметного проникновения на охраняемую территорию в последнее время представляют собой беспилотные летательные аппараты, позволяющие не только проводить качественную фото- и видеосъёмку, но и осуществлять перенос грузов, представляющих потенциальную угрозу безопасности объекта. Разработанная РЛС осуществляет всепогодное и круглосуточное обнаружение малоразмерных подвижных целей. Использование технологии фазового метода измерения угловых координат позволило отказаться от движущихся частей конструкции, значительно повысив её надёжность, а также увеличить интервалы обслуживания. Применение широкополосных сложных сигналов с большой базой (квазинепрерывный режим работы) обеспечивает повышенную помехоустойчивость, скрытность и дальность обнаружения.
Study of a fully implicit scheme for the drift-diffusion system. Asymptotic behavior in the quasi-neutral limit
Creators: name: Bessemoulin-Chatard, Marianne
name: Chainais-Hillairet, Claire
name: Vignal, Marie-Hélène
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper, we are interested in the numerical approximation of the classical time-dependent drift-diffusion system near quasi-neutrality. We consider a fully implicit in time and finite volume in space scheme, where the convection-diffusion fluxes are approximated by Scharfetter-Gummel fluxes. We establish that all the a priori estimates needed to prove the convergence of the scheme does not depend on the Debye length $λ$. This proves that the scheme is asymptotic preserving in the quasi-neutral limit $λ\to 0$.
Contact and Momentum Distribution of the Unitary Fermi Gas
Creators: name: Rossi, R.
name: Ohgoe, T.
name: Kozik, E.
name: Prokof'ev, N.
name: Svistunov, B.
name: Van Houcke, K.
name: Werner, F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Nuclear Theory (nucl-th)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A key quantity in strongly-interacting resonant Fermi gases is the contact $\mathcal{C}$, which characterizes numerous properties such as the momentum distribution at large momenta or the pair correlation function at short distances. The temperature dependence of $\mathcal{C}$ was measured at unitarity, where existing theoretical predictions differ substantially even at the qualitative level. We report accurate data for the contact and the momentum distribution of the unitary gas in the normal phase, obtained by Bold Diagrammatic Monte Carlo and Borel resummation. Our results agree with experimental data within error bars and provide crucial benchmarks for the development of advanced theoretical treatments and precision measurements.
description: Updated data using conformal-Borel resummation. Added observation of non-Fermi liquid behavior (Fig. 6). Supplemental Material in ancillary files
title: Contribution on the numerical solution of the generic optimal control problem with constraints
Creators: name: Σεργάκη Ελευθερία
Publisher: name: Technical University of Crete
Year: 1997

description:  Introduction -- 2. Numerical solution of the general optimal control problem -- 3. Nonlinear optimization problem: statement, basic definitions and numerical methods -- 4. Optimal control of DC-motor drives with electrochemical losses minimization
title: Position and velocity estimation of mobile station using smart antennas
Creators: name: Παπαδημητρίου Δημήτριος Ηλ.
Publisher: name: Technical University of Crete
Year: 2005

description: . 1: Introduction -- Ch. 2: Multiple access -- Ch. 3: Array and smart antennas -- Ch. 4: Performance of beamforming and adaptive algorithms -- Ch. 5: Wireless system configuration -- Ch. 6: Position and velocity estimation using smart antenna systems
title: Biophysical modeling of dynamical optical phenomena induced by diagnostic biomarkers
Creators: name: Ποτηράκης Αντώνιος
Publisher: name: Technical University of Crete
Year: 2005

description:  Introduction -- 2. The modeling process of metabolic dynamic systems -- 3. From cells to epithelial tissues -- 4. Cervical intraepithelial neoplasia (CIN)
title: Απεικονιστική φασματοσκοπία προκαρκινικών αλλοιώσεων του δέρματος
Creators: name: Παπαδάκης Εμμανουήλ
Publisher: name: Technical University of Crete
Year: 2005

description:  Εισαγωγή -- 2. Μακροσκοπική δομή του δέρματος -- 3. Αλληλεπίδραση οπτικής ακτινοβολίας με ιστούς -- 4. Ανασκόπηση βιβλιογραφίας σε μεθόδους διάγνωσης και διάκρισης αλλοιώσεων του δέρματος -- 5. Διάκριση δυσπλαστικών-απλών σπίλων -- 6. Το ποντίκι σαν μοντέλο ανάπτυξης μελανώματος
title: Δειγματοληψία πολλαπλών αισθητήρων διαμέσου αυτοματοποιημένου λογικού συστήματος Δ.Α.Ι.Δ.Α.Λ.Ο.Σ.
Creators: name: Στρωματιάς Κωνσταντίνος
Publisher: name: Technical University of Crete
Year: 1998

description: Μη διαθέσιμο
title: Design and implementation of an automatic laser scanner drived from digital image features
Creators: name: Τσάπρας Αθανάσιος
Publisher: name: Technical University of Crete
Year: 2005

description: . 1: Introduction -- Ch. 2: Laser theory and applications -- Ch. 3: Technology overview and unifying principles in optical scanning systems -- Ch. 4: Design and implementation of an automatic laser scanner -- Ch. 5: Profilometry & system evaluation -- Ch. 6: Future system development
Lie algebras responsible for zero-curvature representations of scalar evolution equations
Creators: name: Igonin, Sergei
name: Manno, Gianni
Publisher: name: arXiv
Year: 2013
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Rings and Algebras (math.RA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37K30, 37K35

description: Zero-curvature representations (ZCRs) are one of the main tools in the theory of integrable PDEs. In particular, Lax pairs for (1+1)-dimensional PDEs can be interpreted as ZCRs. For any (1+1)-dimensional scalar evolution equation $E$, we define a family of Lie algebras $F(E)$ which are responsible for all ZCRs of $E$ in the following sense. Representations of the algebras $F(E)$ classify all ZCRs of the equation $E$ up to local gauge transformations. To achieve this, we find a normal form for ZCRs with respect to the action of the group of local gauge transformations. As we show in other publications, using these algebras, one obtains some necessary conditions for integrability of the considered PDEs (where integrability is understood in the sense of soliton theory) and necessary conditions for existence of a Bäcklund transformation between two given equations. Examples of proving non-integrability and applications to obtaining non-existence results for Bäcklund transformations are presented in other publications as well. In our approach, ZCRs may depend on partial derivatives of arbitrary order, which may be higher than the order of the equation $E$. The algebras $F(E)$ generalize Wahlquist-Estabrook prolongation algebras, which are responsible for a much smaller class of ZCRs. In this paper we describe general properties of $F(E)$ and present generators and relations for these algebras. In other publications we study the structure of $F(E)$ for equations of KdV, Krichever-Novikov, Kaup-Kupershmidt, Sawada-Kotera types. Among the obtained algebras, one finds infinite-dimensional Lie algebras of certain matrix-valued functions on rational and elliptic algebraic curves.
description: 23 pages; v4: some results have been moved to other preprints
title: Φυτοεξυγίανση εδάφους από κάδμιο με χρήση του αλόφυτου Crithmum maritimum (L.)
Creators: name: Ατσαλακης Κωνσταντινος
Publisher: name: Technical University of Crete
Year: 2014

description: ABSTRACT

Phytoaccumulation, as one of the phytoremediation strategies, is an environmentally and economically viable solution for the decontamination of soil from heavy metals, because through this technique, the non-degradeable metals can be removed permanently from the remediated site through the harvesting of the plants used.
There is also upcoming interest in examining the potential use of halophytes in phytoaccumulation processes since the pollution of land areas with heavy metals due to anthropogenic activities, often coexists with high levels of soil salinity mainly because of the overexploitation of the agricultural lands.
It is also of high practical importance the extraction of information on the type and extent of changes occurring in the characteristics of plants and in their capability of absorbing heavy metals, when there are present in the soil fungi that are either part of the natural ecosystem or are added as enhancers for the cultivars.
The main purpose of this phytoremediation study is the investigation of the ability of the, endemic in Crete, halophyte Crithmum maritimum L. to absorb cadmium (Cd) from sandy loam soil, in order to evaluate its efficiency in phytoaccumulation on land areas with characteristics typical of Crete.
The experimental part of the study included the irrigation and observation of the plants used during an eight week period in summer of 2013. There were plants watered with salty solution instead of water and others that a plant protectant fungus, Trichoderma harzianum, was added in their soil of growth. The aims were to estimate the influence of the soil salinity and the presence of a specific strain of fungus on the capacity of the examining plant to accumulate Cd and on the morphological and productive characteristics of this plant. Concisely, the experimental results provided the conclusion that C. maritimum is a plant tolerant to Cd, able to accumulate it in significant amounts especially under high soil salinity conditions suggesting the use of the plant in phytoaccumulation applications. On the other hand, the presence of the fungus limited the translocation of the accumulated metal to the shoots of the plant suggesting its use for sea fennel agriculture as an edible plant.
Additional file 1 of Enhancing the insecticidal activity of new Bacillus thuringiensis X023 by copper ions
Creators: name: Liu, Zhuolin
name: Xie, Junyan
name: Deng, Ziru
name: Wang, Mulan
name: Dang, Dandan
name: Luo, Sha
name: Wang, Yunfeng
name: Sun, Yunjun
name: Xia, Liqiu
name: Ding, Xuezhi
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Mental Health
subject: Virology

description: Additional file 1: Figure S1. KEGG analysis of the proteomics. After obtaining the KEGG annotation for each protein, Pathway classification statistics were performed on the proteins, and the Pathway distribution of protein participation was identified; Figure S2. EggNOG annotation. EggNOG statistics were performed on the protein, and the orthologous group of the protein was identified; Figure S3. GO annotation of the proteomic. GO function classification statistics of the protein were obtained, and the functional distribution characteristics of the protein were identified; Figure S4. Map of protein molecular weight distribution. Most of the proteins it contains are concentrated in 10 kDa to 60 kDa.
Diffusion on hierarchical systems of weakly-coupled networks
Creators: name: Siudem, Grzegorz
name: Hołyst, Janusz A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We analyse diffusion dynamics on weakly-coupled networks (interconnected networks) by means of separation of time scales. Using an adiabatic approximation we reduced the system dynamics to a Markov chain with aggregated variables and derived a transport equation that is analogous to Fick's First Law and includes a driving force. Entropy production is a sum of microscopic entropy transport, which results from the particle's migration between networks of different topologies and macroscopic entropy production of the Markov chain. Equilibrium particles partition between different sub-networks depends only on internal sub-network parameters. Our framework, confirmed by numerical simulations, is also useful for considering diffusion in nested systems corresponding to hierarchical networks with several different time scales thus it can serve to uncover hidden hierarchy levels from observations of diffusion processes.
description: 13 pages, 7 figures
Measurement of Two Low-Temperature Energy Gaps in the Electronic Structure of Antiferromagnetic USb2 Using Ultrafast Optical Spectroscopy
Creators: name: Qi, J.
name: Durakiewicz, T.
name: Trugman, S. A.
name: Zhu, J. -X.
name: Riseborough, P. S.
name: Baumbach, R.
name: Bauer, E. D.
name: Gofryk, K.
name: Meng, J. -Q.
name: Joyce, J. J.
name: Taylor, A. J.
name: Prasankumar, R. P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Ultrafast optical spectroscopy is used to study the antiferromagnetic f-electron system USb2. We observe the opening of two charge gaps at low temperatures (<45 K), arising from renormalization of the electronic structure. Analysis of our data indicates that one gap is due to hybridization between localized f-electron and conduction electron bands, while band renormalization involving magnons leads to the emergence of the second gap. These experiments thus enable us to shed light on the complex electronic structure emerging at the Fermi surface in f-electron systems.
title: Έρευνα απομάκρυνσης Cu(II) και Pb(II) από υδατικό διάλυμα με χρήση βιοεξανθρακώματος (biochar) σε πειράματα συνεχούς ροής
Creators: name: Μαντωνανακη Αντωνια
Publisher: name: Technical University of Crete
Year: 2014

description: Στην παρούσα μεταπτυχιακή διατριβή ερευνάται η απομάκρυνση ιόντων συγκεκριμένων μετάλλων, χαλκού (Cu2+) και μολύβδου (Pb2+), από υδατικά διαλύματα χρησιμοποιώντας βιοεξανθράκωμα (biochar) σε πειράματα συνεχούς ροής. Το biochar προήλθε από πυρόλυση αποβλήτου χρησιμοποιημένου καφέ σε θερμοκρασία 600ο C.
Αρχικά, για το υλικό που χρησιμοποιήθηκε έγιναν πειράματα χαρακτηρισμού, με σκοπό να κατανοηθούν οι ιδιότητές του για την ερμηνεία των αποτελεσμάτων των πειραμάτων συνεχούς ροής. Το υλικό αυτό αξιολογήθηκε ως προς το pH του, τη στοιχειακή του ανάλυση, τη θερμογόνο δύναμη και το σημείο μηδενικού φορτίου του. Ακόμα, έλαβαν χώρα μετρήσεις ορυκτολογικής ανάλυσης (XRD) και ειδικής επιφάνειας (ΒΕΤ).
Στη συνέχεια πραγματοποιήθηκαν πειράματα συνεχούς ροής με διάρκεια 56 h υπό σταθερή θερμοκρασία με τη βοήθεια στηλών. Ως ροφητικό υλικό στις στήλες χρησιμοποιήθηκε το biochar, ενώ τα υδατικά διαλύματα που διέρχονταν από αυτές, περιείχαν χαλκό και μόλυβδο. Σκοπός αυτών των πειραμάτων ήταν να προσδιοριστεί το χρονικό διάστημα που το σύστημα μπορεί να λειτουργήσει χωρίς να επέλθει κορεσμός κάτω από διαφορετικές συνθήκες. Έτσι, μελετήθηκε η επίδραση διαφορετικών τιμών pH, διαφορετικών αρχικών συγκεντρώσεων και διαφορετικών ρυθμών ροής στη ρόφηση και απομάκρυνση των συγκεκριμένων μετάλλων. Η επίδραση του pH, η οποία μελετήθηκε σε τιμές pH=2 & 5, έδειξε ότι η ικανότητα ρόφησης των μετάλλων παρείχε ικανοποιητικά αποτελέσματα στη χαμηλή τιμή pH για το εξεταζόμενο χρονικό διάστημα. Έπειτα, με τη μελέτη του ρυθμού ροής, σε δύο διαφορετικές τιμές ίσες με 0.5 & 4 mL/min, διαπιστώθηκε ότι πλήρης ρόφηση πραγματοποιήθηκε σε αργούς ρυθμούς, καθώς το διάλυμα παρέμεινε περισσότερο χρόνο στη στήλη. Οι αρχικές συγκεντρώσεις των διαλυμάτων που χρησιμοποιήθηκαν είχαν τιμές 0.5 – 2 mmol/L.
Η μοντελοποίηση των πειραματικών δεδομένων που ακολούθησε είχε στόχο να περιγράψει την απόδοση της στήλης και να προσδιορίσει το καλύτερο μοντέλο για την πρόβλεψη της δυναμικής συμπεριφοράς του συστήματος. Μελετήθηκαν τα μοντέλα του Thomas, του Adams-Bohart και του Yoon-Nelson, παρέχοντας διαφορετικά αποτελέσματα το καθένα. Διαπιστώθηκε ότι το μοντέλο του Thomas αντιπροσωπεύει καλύτερα τα πειραματικά δεδομένα, χωρίς όμως να τα ικανοποιεί πλήρως. Τα άλλα δύο μοντέλα δεν παρείχαν υψηλές τιμές συντελεστών συσχέτισης, χαρακτηρίζοντας τα ως μη ικανοποιητικά για την περιγραφή των πειραματικών δεδομένων. Τέλος, συνοψίζοντας η διερεύνηση της απομάκρυνσης ιόντων χαλκού και μολύβδου από biochar έδειξε ότι καλύτερα αποτελέσματα επιφέρουν οι χαμηλότερες τιμές pH καθώς και οι χαμηλότεροι ρυθμοί ροής των διαλυμάτων.
GBIF (Système Mondial d'Information sur la Biodiversité) : bonnes pratiques pour l'accès libre et ouvert aux données de biodiversité
Creators: name: Archambeau, Anne-Sophie
Publisher: name: Zenodo
Year: 2022
Subjects: curation
metadata
metadonnées
open science
science ouverte
Open Refine
Qualité des données
Data quality

description: Le GBIF est un programme international, fondé à l'initiative de l'OCDE en 2001, dont le but est l'accès libre et ouvert aux données primaires de biodiversité, pour répondre aux enjeux de la recherche et venir en appui aux politiques publiques. À ce jour, plus de 2,2 milliards de données provenant de collections ou d'observations dans la nature sont disponibles et téléchargeables librement via le portail GBIF (www.gbif.org). Cet exposé présentera les outils et les bonnes pratiques mis en place autour de la qualité et gestion des données : curation des données, licences, DOI. Ces services facilitent la mobilisation des données et permettent un meilleur suivi de leur utilisation. Tous les outils et services développés par le GBIF sont en accès libre et contribuent à l’implémentation du Plan National pour la Science Ouverte. Cette présentation a été réalisée lors du webinaire du jeudi 1 décembre 2022, organisé par le GTSO Données de Couperin.
 L’enregistrement est disponible ici : https://youtu.be/LvqYI7gLs4w
D2.13 Final Review 2nd Round of the Call
Creators: name: Austen, Kat
Publisher: name: Zenodo
Year: 2022
Subjects: Citizen science
Accelerator model
Mentoring
Co-design
participatory research

description: This report details the planning and execution of the second round of the ACTION Accelerator (2021). The document is intended both as documentation of the second round and as a useful resource for those considering embarking upon such an Accelerator format for the incubation of citizen science projects in general.
title: Bewertung gesundheitlicher Risiken von Pestizidrückständen auf Schnittblumen: Stellungnahme Nr. 013/2021 des BfR vom 26. April 2021
Creators: name: Bundesinstitut Für Risikobewertung
Publisher: name: Bundesbehörden und Einrichtungen im Geschäftsbereich des Bundesministeriums für Ernährung und Landwirtschaft (BMEL)
Year: 2021
Subjects: subject: 000

description: BfR-Stellungnahmen, vol. 2021, no. 013
title: Development of optimization algorithms for a smart grid community
Creators: name: Προβατα Ελενη
Publisher: name: Technical University of Crete
Year: 2014

description: The aim of this work is the development of an optimization model in order to minimize the cost of Leaf Community microgrid. This cost is a sum of energy cost and the maintenance cost of the Energy storage system. The developed objective function is constrained and the problem here is solved by using the method of genetic algorithms at Matlab. The genetic algorithm decides about the transportation of the energy from or to the ESS and it calculates an optimum cost. The optimization time horizon is 24 h ahead, thus the prediction of energy production and consumption was necessary. This was achieved by using neural networks. In order to verify the performance of the developed optimization model, some scenarios were tested evaluated. This study concludes that a management of a microgrid can achieve energy and money savings.
title: Health risk assessment of ethylene oxide residues in sesame seeds: BfR Opinion No 024/2021 of 1 September 2021
Creators: name: Bundesinstitut Für Risikobewertung
Publisher: name: Bundesbehörden und Einrichtungen im Geschäftsbereich des Bundesministeriums für Ernährung und Landwirtschaft (BMEL)
Year: 2021
Subjects: subject: 000

description: BfR-Stellungnahmen, vol. 2021, no. 024
title: Εξυγίανση ρυπασμένου υπόγειου υδροφορέα από οργανικούς και ανόργανους ρύπους με εφαρμογή της τεχνολογίας των διαπερατών αντιδρώντων φραγμάτων
Creators: name: Σημαντηρακη Φωτεινη
Publisher: name: Technical University of Crete
Year: 2015

description: Η διδακτορική διατριβή επικεντρώνεται στο ζήτημα της απομάκρυνσης επίμονων, τοξικών και συχνά εμφανιζόμενων ρύπων από υπόγειους υδροφορείς με την χρήση κατάλληλων πληρωτικών οργανικών και ανόργανων υλικών. Οι ρύποι που μελετήθηκαν, επιλέχθηκαν με κριτήριο την συχνότητα εμφάνισής τους στο υπέδαφος και τα υπόγεια ύδατα αλλά και την τοξικότητα και επικινδυνότητά τους για το περιβάλλον και τον άνθρωπο. Στην παρούσα διατριβή, επιλέχθηκαν και μελετήθηκαν ως πληρωτικά υλικά δυο είδη ιλύος (αναερόβια χωνευμένη και μη χωνευμένη ιλύς), δύο είδη κόμποστ (μη ώριμο και ώριμο) και ένα ανόργανο υλικό, ο ελληνικός φυσικός ζεόλιθος. Αρχικά, πραγματοποιήθηκε πλήρης χαρακτηρισμός των συγκεκριμένων υλικών με στόχο τον ακριβή προσδιορισμό των παραμέτρων που έχουν άμεση επίδραση στον βαθμό ρόφησης οργανικών και ανόργανων ρύπων. Ακολούθησαν, πειράματα διαλείποντος έργου υπό κατάλληλες σταθερές συνθήκες και για τα πέντε υλικά. Συγκεκριμένα, μελετήθηκε η επίδραση καθοριστικών παραμέτρων (ποσότητα υλικού και χρόνος επαφής) στον βαθμό απομάκρυνσης των μετάλλων (καδμίου και ψευδαργύρου) και των πτητικών υδρογονανθράκων (βενζόλιο, τολουόλιο, αιθυλοβενζόλιο, m, p, o ξυλόλια-BTEX) από τα υδατικά διαλύματα. Με βάση τα αποτελέσματα αυτών των πειραμάτων έγινε επιλογή του καλύτερου οργανικού υλικού τόσο από άποψη ποιότητας και καταλληλότητας διάθεσης στο έδαφος όσο και από άποψη απόδοσης στην δέσμευση των ρύπων. Το ώριμο κόμποστ και ο ζεόλιθος διερευνήθηκαν περεταίρω. Συγκεριμένα, μελετήθηκε η επίδραση της αρχικής συγκέντρωσης των ρύπων και του pH αλλά και η πιθανή ύπαρξη ανταγωνιστικών φαινομένων παρουσία μετάλλων και BTEX. Τα πειραματικά αποτελέσματα των κινητικών και ισόθερμων πειραμάτων εφαρμόστηκαν σε ευρέως χρησιμοποιούμενα μαθηματικά μοντέλα με σκοπό να διερευνηθεί η δυνατότητα αξιόπιστης χρήσης τους. Στην συνέχεια, η έρευνα επεκτάθηκε, για τον ζεόλιθο και το ώριμο κόμποστ, σε πειράματα συνεχούς ροής. Τα εν λόγω πειράματα έλαβαν χώρα σε κυλινδρικές στήλες κατακόρυφης ροής. Αυτή η σειρά πειραμάτων, προσεγγίζει περισσότερο τις πραγματικά επικρατούσες συνθήκες στο υπέδαφος και ολοκληρώθηκε με την διερεύνηση της χρήσης μαθηματικών μοντέλων συνεχούς ροής για την προσομοίωση των πειραματικών αποτελεσμάτων και την εξεύρεση του πιο αξιόπιστου μοντέλου.Τέλος, η διατριβή περιλαμβάνει πειράματα συνεχούς ροής σε επίπεδο μεγαλύτερης κλίμακας με αξιοποίηση της φυσικής ροής. Συγκεκριμένα, κατασκευάστηκε πειραματική διάταξη με διαδοχή στρωμάτων που αντιστοιχεί σε εκείνη που συναντάται στο υπέδαφος και στην τεχνολογία των αντιδρώντων φραγμάτων. Η διατριβή ολοκληρώθηκε με τον προσδιορισμό της απόδοσης της πιλοτικής δεξαμενής στην εξυγίανση υπογείων υδάτων υπό διαφορετικές συνθήκες και με την προσομοίωση της ροής στην δεξαμενή μέσω της χρήσης λογισμικού (Princenton Transport Code-PTC).
Object-Image Correspondence for Algebraic Curves under Projections
Creators: name: Burdis, Joseph M.
name: Kogan, Irina A.
name: Hong, Hoon
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: Computational Geometry (cs.CG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We present a novel algorithm for deciding whether a given planar curve is an image of a given spatial curve, obtained by a central or a parallel projection with unknown parameters. The motivation comes from the problem of establishing a correspondence between an object and an image, taken by a camera with unknown position and parameters. A straightforward approach to this problem consists of setting up a system of conditions on the projection parameters and then checking whether or not this system has a solution. The computational advantage of the algorithm presented here, in comparison to algorithms based on the straightforward approach, lies in a significant reduction of a number of real parameters that need to be eliminated in order to establish existence or non-existence of a projection that maps a given spatial curve to a given planar curve. Our algorithm is based on projection criteria that reduce the projection problem to a certain modification of the equivalence problem of planar curves under affine and projective transformations. To solve the latter problem we make an algebraic adaptation of signature construction that has been used to solve the equivalence problems for smooth curves. We introduce a notion of a classifying set of rational differential invariants and produce explicit formulas for such invariants for the actions of the projective and the affine groups on the plane.
description: significantly improved version (corrected and completed) of arXiv:1202.1303; v2: Proof of Theorem 4 corrected; v3: Equation (48) corrected
title: Πρόγνωση χρονοσειρών δεδομένων με μεθόδους νευρωνικών δικτύων, με εφαρμογή σε χρονοσειρές με στοιχεία τιμών μετοχών
Creators: name: Καραγιάννης Κυριάκος
Publisher: name: Technical University of Crete
Year: 1999

description: Μη διαθέσιμο
Kontinuität oder Diskontinuität? Zur Frage einer bandkeramischen Landnahme im südlichen Mitteleuropa
Creators: name: Tillmann, Andreas
Publisher: name: DGUF e.V.
Year: 2017

description: [nicht vorhanden / not available]
description: Archäologische Informationen, Bd. 16, Nr. 2 (1993): Archäologische Informationen
SEANOE, administration d'un entrepôt de données thématique
Creators: name: Merceur, Frédéric
Publisher: name: Zenodo
Year: 2022
Subjects: curation
metadonnées
metadata
open science
science ouverte
qualité des données
data quality
statistiques d'usage
usage statistics

description: SEANOE (https://www.seanoe.org) est un entrepôt de données en sciences marines. Chaque jeu de données publié par SEANOE bénéficie d’un DOI qui permet une citation précise, fiable et pérenne. SEANOE offre ainsi une solution pour répondre aux revues qui demandent que les données utilisées dans un article soient accessibles en ligne (ex : PLOS ONE) et citées à l’aide d’un DOI. Les données publiées par SEANOE sont accessibles librement et peuvent être utilisées en respectant les conditions de la licence Creative Commons sélectionnée par l’auteur des données. Un embargo limité à 2 ans sur un jeu de données est possible; par exemple pour restreindre l’accès aux données d’une publication en cours de revue scientifique. SEANOE est géré par le centre de données marines Sismer dans le cadre du pôle de données pour l’océan Odatis (https://www.odatis-ocean.fr/), qui fédère au niveau national des activités de gestion de données et d’expertise scientifique en océanographie. Après une présentation rapide des spécificités de cet entrepôt de données, la présentation s’attardera notamment sur l’organisation de la validation des données avant leur publication, le suivi de l’usage des données et leur ingestion dans des bases de données internationales. Cette présentation a été réalisée lors du webinaire du jeudi 1 décembre 2022, organisé par le GTSO Données de Couperin.
 L’enregistrement est disponible ici : https://youtu.be/LvqYI7gLs4w
COBRA: A Combined Regression Strategy
Creators: name: Biau, Gérard
name: Fischer, Aurélie
name: Guedj, Benjamin
name: Malley, James
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: A new method for combining several initial estimators of the regression function is introduced. Instead of building a linear or convex optimized combination over a collection of basic estimators $r_1,\dots,r_M$, we use them as a collective indicator of the proximity between the training data and a test observation. This local distance approach is model-free and very fast. More specifically, the resulting nonparametric/nonlinear combined estimator is shown to perform asymptotically at least as well in the $L^2$ sense as the best combination of the basic estimators in the collective. A companion R package called \cobra (standing for COmBined Regression Alternative) is presented (downloadable on \url{http://cran.r-project.org/web/packages/COBRA/index.html}). Substantial numerical evidence is provided on both synthetic and real data sets to assess the excellent performance and velocity of our method in a large variety of prediction problems.
description: 42 pages
R-adaptive multisymplectic and variational integrators
Creators: name: Tyranowski, Tomasz M.
name: Desbrun, Mathieu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65M99, 65Z05

description: Moving mesh methods (also called r-adaptive methods) are space-adaptive strategies used for the numerical simulation of time-dependent partial differential equations. These methods keep the total number of mesh points fixed during the simulation, but redistribute them over time to follow the areas where a higher mesh point density is required. There are a very limited number of moving mesh methods designed for solving field-theoretic partial differential equations, and the numerical analysis of the resulting schemes is challenging. In this paper we present two ways to construct r-adaptive variational and multisymplectic integrators for (1+1)-dimensional Lagrangian field theories. The first method uses a variational discretization of the physical equations and the mesh equations are then coupled in a way typical of the existing r-adaptive schemes. The second method treats the mesh points as pseudo-particles and incorporates their dynamics directly into the variational principle. A user-specified adaptation strategy is then enforced through Lagrange multipliers as a constraint on the dynamics of both the physical field and the mesh points. We discuss the advantages and limitations of our methods. Numerical results for the Sine-Gordon equation are also presented.
description: 65 pages, 13 figures
Zur Verwendung des Begriffs "Neolithikum" im Bereich der holozänen Kulturen Nordafrikas
Creators: name: Klees, Frank
Publisher: name: DGUF e.V.
Year: 2017

description: [nicht vorhanden / not available]
description: Archäologische Informationen, Bd. 16, Nr. 1 (1993): Archäologische Informationen
title: Εκτίμηση της ρύπανσης θρεπτικών στην λεκάνη απορροής του Αχελώου και την παράκτια ζώνη. Συσχέτιση με τις χρήσεις γης
Creators: name: Τσιτωνάκη Αικατερίνη
Publisher: name: Technical University of Crete
Year: 2002

description: Μη διαθέσιμο
Experimental distribution of entanglement with separable carriers
Creators: name: Fedrizzi, A.
name: Zuppardo, M.
name: Gillett, G. G.
name: Broome, M. A.
name: de Almeida, M.
name: Paternostro, M.
name: White, A. G.
name: Paterek, T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The key requirement for quantum networking is the distribution of entanglement between nodes. Surprisingly, entanglement can be generated across a network without direct transfer - or communication - of entanglement. In contrast to information gain, which cannot exceed the communicated information, the entanglement gain is bounded by the communicated quantum discord, a more general measure of quantum correlation that includes but is not limited to entanglement. Here, we experimentally entangle two communicating parties sharing three initially separable photonic qubits by exchange of a carrier photon that is unentangled with either party at all times. We show that distributing entanglement with separable carriers is resilient to noise and in some cases becomes the only way of distributing entanglement through noisy environments.
description: Published version. See also PRL 111, 230505 (2013) and PRL 111, 230506 (2013) for parallel works and Physics 6, 132 (2013) for viewpoint
Effects of Decision-Making Training Programs in Soccer Players: A protocol of Systematic Review of Randomized Controlled Trials
Creators: name: Trujillo, Juan
name: Loaiza-Betancur, Andrés
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Sports Sciences
subject: Medicine and Health Sciences

description: Abstract Background Performance of soccer players requires accurate data, results and conclusions. Training programs to evaluate, train and improve the decision-making (DM) of soccer players must meet high quality standards, as well as follow the parameters established in randomized controlled trials that guarantee quality and methodological rigor of this type of research. Therefore, it is necessary to carry out this systematic review to better the evidence base underlying our research question. Objective This systematic review aims to identify, appraise, and synthesize findings from all the empirical evidence of the benefits and harms of DM training programs in soccer players. Methods This systematic review protocol was reported following the PRISMA-P Statement. We will search MEDLINE (via Ovid), Embase (via Elsevier), EBSCO (via SPORTDiscus), CINAHL (via Ebsco), clinical trial registries (via Clinicaltrials), and grey literature (via scholar google) to identify randomized controlled trials (RCTs) in soccer players of all competitive levels. Major outcomes will be decision-making and executive functions. Pairs of reviewers will independently screen the systematic reviews for inclusion, extract data, and appraise the methodological quality. The GRADE approach will be used to evaluate the quality of the evidence. Discussion This systematic review will identify, appraise, and synthesize findings from all the empirical evidence of the benefits and harms of DM training programs. Besides, it will be developed by experts in systematic reviews, neurosciences, sports training and statistical analysis, which greatly favors the research and marks a very important starting point for future field research in the area of DM in soccer players. By taking into account players of all competitive levels and all ages, it is expected that the impact of this systematic review will be high, leading decision makers at different levels (local, national and international) to implement improvements in each of the sporting processes. Protocol registration: Keywords: systematic review, meta-analysis, decision Making
title: Τεχνική SPME-GC/MS για τον προσδιορισμό πολυκλυκικών αρωματικών υδρογονάνθρακων (PAH) σε δείγματα νερού και αποικοδόμηση αυτών με χρήση υπέρηχων
Creators: name: Ντελέκος Αλέξανδρος
Publisher: name: Technical University of Crete
Year: 2002

description: Μη διαθέσιμο
title: Βιολογική επεξεργασία στραγγισμάτων από Χ.Υ.Τ.Α. Δήμου Ρεθύμνου
Creators: name: Νικολόπουλος Ευθύμιος
Publisher: name: Technical University of Crete
Year: 2002

description: Μη διαθέσιμο
Constructions of transitive latin hypercubes
Creators: name: Krotov, Denis
name: Potapov, Vladimir
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 05B15, 94B25

description: A function $f:\{0,...,q-1\}^n\to\{0,...,q-1\}$ invertible in each argument is called a latin hypercube. A collection $(π_0,π_1,...,π_n)$ of permutations of $\{0,...,q-1\}$ is called an autotopism of a latin hypercube $f$ if $π_0f(x_1,...,x_n)=f(π_1x_1,...,π_n x_n)$ for all $x_1$, ..., $x_n$. We call a latin hypercube isotopically transitive (topolinear) if its group of autotopisms acts transitively (regularly) on all $q^n$ collections of argument values. We prove that the number of nonequivalent topolinear latin hypercubes grows exponentially with respect to $\sqrt{n}$ if $q$ is even and exponentially with respect to $n^2$ if $q$ is divisible by a square. We show a connection of the class of isotopically transitive latin squares with the class of G-loops, known in noncommutative algebra, and establish the existence of a topolinear latin square that is not a group isotope. We characterize the class of isotopically transitive latin hypercubes of orders $q=4$ and $q=5$. Keywords: transitive code, propelinear code, latin square, latin hypercube, autotopism, G-loop.
description: 18 pages. v3: revised, accepted version; v2: the paper has been completely rewritten (v1 can contain incorrect statements)
title: Μοντελοποίηση της υπόγειας ροής και της μεταφοράς νιτρικών στον παραλιακό ελεύθερο υδροφορέα της δυτικής περιαστικής ζώνης της Καλαμάτας
Creators: name: Τιμπλαλέξης Θεόδωρος
Publisher: name: Technical University of Crete
Year: 2002

description: Μη διαθέσιμο
Depth^+ and Length^+ of Boolean algebras
Creators: name: Garti, Shimon
name: Shelah, Saharon
Publisher: name: arXiv
Year: 2013
Subjects: subject: Rings and Algebras (math.RA)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03G05

description: Let inv denote the cardinal invariants Depth^+ and Length^+ on Boolean algebras. For many singular cardinals we create a strict inequality between the product of the inv values and the inv of the product algebra. The proof holds in ZFC.
description: 11 pages, accepted version after minor changes
Additional file 1 of Age and gender specific association between obesity and depressive symptoms: a large-scale cross-sectional study
Creators: name: Liao, Wei
name: Luo, Zhicheng
name: Hou, Yitan
name: Cui, Ningning
name: Liu, Xiaotian
name: Huo, Wenqian
name: Wang, Fang
name: Wang, Chongjian
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Mental Health

description: Additional file 1.
Decrypting The Correlates Of School Bullying And Child Behaviour Problems
Creators: name: Islam, K M Baharul
Publisher: name: figshare
Year: 2022
Subjects: Education

description: Bullying is a multifaceted relationship problem among children, associated with many psychosocial complications for perpetrators and victims. It affects the psychosocial and mental well-being and can disrupt the bullied's physical, social, emotional and cognitive development. Bullying is a problem that begins at an early age and continues into adulthood. Victims of bullying often carry traces of their trauma throughout their lives. If the child is bullied, parents must know the laws passed to combat bullying in India to stifle bullying in the bud. Bullying is one of the forms of violent behaviour among school-going and out-of-school children, which has become a universal phenomenon. Often practisedin the absence and in the presence of adult members who do not interfere, bullying has long been considered an inevitable and, in some ways, uncontrollable part of growth. Bullying can affect a school's social environment, creating a climate of fear amongstudents, impairing their learning ability and leading to other antisocial behaviours. Many ways to reduce bullying depend on children who know that what they are doing is called bullying and that this is not an acceptable way to behave because of its consequences for victims and other children. Anti-bullying interventions require a combination of scaffolding and social architecture to provide comprehensive support and change the social dynamics that allow bullying. From an empirical point of view, we could perhaps reduce the burden of these relationship problems in the lives of children and young people. In this paper, we explored the bullying phenomenon and suggested possible interventions to reduce the problem in and outside school settings
adix_Masters_thesis_FINAL.pdf
Creators: name: Dix, Adam John
Publisher: name: Purdue University Graduate School
Year: 2022
Subjects: Reaction engineering (excl. nuclear reactions)
Nuclear engineering (incl. fuel enrichment and waste processing and storage)
Fluid mechanics and thermal engineering not elsewhere classified
Experimental methods in fluid flow, heat and mass transfer
Fundamental and theoretical fluid dynamics

description: Wire-wrapped rod bundles are often used in nuclear reactors operating in a fast neutron spectrum, as designers seek to minimize neutron scattering by packing the fuel pins into a hexagonal lattice. Bundles with many rods have extensively been studied as representative of large fuel assemblies, however far fewer experiments have investigated bundles with 7 rods (7-pin bundles). The large difference in subchannel number between these bundles leads to 7-pin bundles having different pressure drop characteristics. The Versatile Test Reactor (VTR) sodium cartridge loop proposes to use a 7-pin bundle as its experimental core region, highlighting the need for additional data and models. The current work seeks to establish a better understanding of the pressure drop in 7-pin wire-wrapped rod bundles through scaled experiments and a novel pressure drop model. A scaling analysis is first performed to demonstrate the applicability of water experiments to the VTR sodium cartridge loop, before an experimental test facility is designed and constructed. Experiments are then performed at a range of Reynolds numbers to determine the pressure drop. Current models are able to predict the data well, but are complex and can be difficult to use. A comparatively simpler model is developed, based on exact laminar solutions of a simplified rod bundle, which also offers a theoretical lower bound for the pressure drop in wire-wrapped bundles. The proposed model compares well with the existing experimental database, able to predict bundle friction factor with an average absolute percent difference of 10.8%. This accuracy is also similar to existing correlations, while relying on fewer empirical coefficients. The theoretical lower bound is also used to identify several datasets in literature that may feature data that is systemically lower than the true pressure drop, which agrees with previous observations in literature.
title: Μοντελοποίηση της υπόγειας ροής και της μεταφοράς νιτρικών στον επιφανειακό υπόγειο υδροφορέα στην περιοχή του Κορινθιακού Κόλπου
Creators: name: Δόκου Ζωή
name: Μουσκεφταρά Αριμνηστέα-Σοφία
name: Παγκάλου Διαλεκτή
Publisher: name: Technical University of Crete
Year: 2002

description: Μη διαθέσιμο