cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Citare le fonti: linee guida e strumenti. Il supporto dei servizi bibliotecari
Creators: name: Rivi, Claudia
name: Zani, Maurizio
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: M-STO/08 Archivistica, bibliografia e biblioteconomia

description: Verrà presentato il lavoro svolto dai bibliotecari dell'Università di Bologna al fine di raccogliere ed armonizzare in un unico documento di linee guida le indicazioni volte a delineare, per ogni disciplina, lo stile citazionale più appropriato e uniformemente condiviso. L'iniziativa si inserisce nell'ambito del Servizio "Garanzia di Originalità" con l'intento di fornire agli studenti laureandi un valido supporto nella redazione dell'apparato bibliografico della tesi di laurea. Un lavoro che si è nutrito della collaborazione di numerosi soggetti e si è concretizzato in varie fasi: individuazione dei settori disciplinari coinvolti, raccolta di indicazioni concernenti il modus operandi di docenti e ricercatori, valutazioni delle fonti citazionali suggerite, redazione delle linee guida. 
La crescita delle competenze informative degli studenti universitari passa anche attraverso la comprensione e l’acquisizione piena delle corrette modalità di organizzazione, registrazione e citazione delle fonti recuperate tramite la ricerca. E’ oggi impensabile affrontare questo aspetto a prescindere delle tecnologie informatiche. Software specializzati sono disponibili per esempio per la gestione bibliografica, sia gratuitamente che a pagamento (Endnote web, Zotero, Mendeley). L’attività e i servizi dei bibliotecari possono risultare essenziali per guidare i giovani laureandi nell’acquisizione di queste competenze, fondamentali per il prosieguo della carriera accademica e lavorativa, fornendo inoltre un tangibile reale valore aggiunto al percorso della ricerca bibliografica. 
L’esperienza della Biblioteca clinica “Bianchi“ -- che opera all’interno del policlinico universitario bolognese S. Orsola – Malpighi – consiste nella predisposizione di una particolare versione del browser Mozilla -- sulla base del modello già preparato dal Sistema bibliotecario per l’accesso da remoto -- che consente agli utenti di consultare la banca dati di riferimento (Pubmed); di trovare immediatamente rinvio al full-text degli articoli (tramite A-link); di richiedere da remoto con grande facilità gli articoli tramite il servizio di document delivery. L’aggiunta del plug-in (Zotero) per la registrazione dei risultati e per una più completa gestione della bibliografia ha completato questo strumento. Tra le diverse alternative (gratuite o a pagamento), Zotero è stato scelto per la semplicità d’uso e per la possibile condivisione tra studenti e studiosi di diverse realtà. Plug-in aggiuntivi completano il browser, in modo tale da rendere potenzialmente più efficiente ed efficace la ricerca, nella convinzione che aiutare i giovani studiosi ad effettuare una ricerca bibliografica completa in tutti i suoi passaggi sia un elemento indispensabile per evitare anche forme di plagio e / o mancato rispetto dei diritti degli autori.
Compact and broadband microstrip power amplifier MMIC with 400-mW output power using0.15-µm GaAs PHEMTs
Creators: name: Bessemoulin, A.
name: Mahon, S.
name: Dadello, Anna
name: McCulloch, G.
name: Harvey, J.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: The performance of a compact power amplifier MMIC for 35 to 45 GHz applications is reported. Using a standard 6-inch, 0.15-µm GaAs power PHEMT technology on 100-µm substrate thickness, in combination with appropriate compact circuit topologies, this microstrip power amplifier achieved a linear gain of more than 24 dB over the 36 to 45 GHz frequency range. At 5 V and 500 mA bias, an output power at 1-dB compression of 26 dBm (P-1dB=400 mW) was measured in the 37~40 GHz band, with a saturated output power up to 0.5 Watt (Psat=27 dBm). The total chip size is only 3.6 mm2 (2.4  1.5 mm2); compared to conventional power amplifier MMICs operating at these frequencies, the combined output power and gain densities per chip area are a factor two higher.
Analysis of energy consumption for Algerian building in extreme North-African climates
Creators: name: Kadraoui, Hicham
name: Benouaz, Tayeb
name: Bekkouche, Sidi Mohammed El Amine
Publisher: name: International Journal of Sustainable Energy Planning and Management
Year: 2019

description: The objective of this study is to diagnose and quantify energy consumptions of a real residential building with local materials. Three sites belong to different radiative regimes: Algiers on the southern Mediterranean shore, Tlemcen on the west and Ghardaïa in the Sahara of Algeria. The followed method is based on an approach for assessing heating and cooling energy needs, solar gains, internal lighting loads, occupants and equipment are not considered. Annual heating and cooling requirements are calculated, according to climate data from 2014. We are also interested in a technical and economic study to have a monthly and annual estimation of heating and cooling needs in kilowatt hours and Algerian money per m3 (DA / m3).




The results show that this residential building is not affordable to live in. Facade walls, roof and ground are the major sources of heat losses in buildings (more than 70% of the total losses). The evaluation is devoted to adapt the construction to the region's climate. To improve the building's energy performance, it is necessary to integrate passive and active architectural concepts.
description: International Journal of Sustainable Energy Planning and Management, Vol 19 (2019)
The issue of zeroth law for Killing horizons in Lanczos-Lovelock gravity
Creators: name: Sarkar, Sudipta
name: Bhattacharya, Swastik
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the zeroth law for Killing horizons in Lanczos-Lovelock gravity. We show that the surface gravity of a general Killing horizon in Lanczos-Lovelock gravity (except for general relativity) may not be constant even when the matter source satisfies dominant energy condition.
description: Published Version
Synthese von Benzothiazinonen und Derivaten als DprE1 Hemmstoffe mit antimykobakterieller Aktivität
Creators: name: Richter, Adrian
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2017
Subjects: subject: 615

description: Die Arbeit befasst sich mit der Synthese und Erforschung der antimykobakteriellen 8-Nitro-Benzothiazinone (BTZs) und verwandter Substanzen. In diesem Zusammenhang wurde ein effektiver Syntheseweg zur BTZ-Darstellung entwickelt und für die Synthese neuer Derivate genutzt, welche sich vielfältig von den bekannten Verbindungen unterscheiden. Die synthetisierten Substanzen wurden einer antimykobakteriellen Wirkwertbestimmung unterzogen und auf cytotoxische Eigenschaften geprüft. Von den, im Verlauf der Arbeit hergestellten, Verbindungen zeigen über 40 eine antimykobakterielle Wirksamkeit, meist handelt es sich dabei um 8-Nitro-BTZs. Mittels Durchführung von DprE1-Enzymassays mit einer Reihe kovalenter DprE1-Inhibitoren unterschiedlicher Aktivität ist das Verständnis der zeitabhängigen Enzymhemmung durch BTZs erweitert worden. Diese Daten werden durch verschiedene Röntgenkristallstrukturen und massenspektrometrische Untersuchen ergänzt.
description: The synthesis and research about 8-nitro-bentothiazinones (BTZs) and related compounds is the subject of this publication. Regarding this purpose an effective synthetic pathway was developed and used for synthesis of new derivatives. The test compounds were characterized against mycobacteria and investigated regarding their cytotoxic properties. 40 compounds - mostly 8-nitro-BTZs - shown antimycobacterial activity. New insights in the time-dependent mode of action obtained by DprE1-enzymeassays using a panel of covalent DprE1-inhibitors with different activity are an important part of this work. These data were supplemented by different crystal-structures and MS experiments.
Promoting ion and heat transfer of solid polymer electrolytes by tuning polymer chain length and salt concentration
Creators: name: Wang, Jiaqi
name: Fan, Linhao
name: Li, Weizhuo
name: Guo, Ting
name: Wang, Fang
name: Du, Qing
name: Jiao, Kui
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: The heat and mass performance of solid polymer electrolytes (SPEs) directly affects their application in solid-state batteries (SSBs). However, high crystallinity and charged clusters hinder the transport of Li+ in SPEs, resulting in low ion diffusivities and thermal conductivities. Therefore, understanding the effects of SPE structure on ion transport and heat conduction is critical for SPE designing. In this work, the ion diffusivities and thermal conductivities of SPEs containing polyethylene oxide (PEO) and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) salt with different PEO chain lengths and salt concentrations are studied and the structural properties are analyzed to determine the mechanisms of ion transport and heat conduction. The results show that the crystallinity and charged clusters decrease in SPEs with short-chain PEO and low salt concentration, thereby improving ion transfer and heat conduction. Moreover, phonon spectra shift to a higher-frequency domain when salt concentration increases, which induces a decrease in thermal conductivity. Decreased salt concentration and chain length increased conductivity by 350% and 176%, respectively, and thermal conductivity by 122% and 140%, respectively. These findings, which indicate that SPEs with short-chain PEO and low salt concentration have better ion and heat transfer, provide valuable insight into the design of PEO-LiTFSI electrolytes. Ion and heat transfer in PEO-LiTFSI electrolytes are studied.High crystallinity hinders ion and heat transfer in long-chain PEO electrolytes.Poor ion and heat transfer are due to ion clusters at high salt concentrations.Enhancement of high-frequency phonon scattering decreases thermal conductivity.Useful insights into ion and heat transfer are obtained for designing SPEs. Ion and heat transfer in PEO-LiTFSI electrolytes are studied. High crystallinity hinders ion and heat transfer in long-chain PEO electrolytes. Poor ion and heat transfer are due to ion clusters at high salt concentrations. Enhancement of high-frequency phonon scattering decreases thermal conductivity. Useful insights into ion and heat transfer are obtained for designing SPEs.
Immunhistochemische Untersuchung hCAT1-exprimierender Neurone im Hippocampus bei depressiven Patienten und Vergleichspersonen
Creators: name: Wolf, Susann
Publisher: name: Otto-von-Guericke-Universität Magdeburg
Year: 2019
Subjects: subject: Carrier-Proteine
subject: Hippocampus
subject: Depression
subject: 616.8527

description: Der humane kationische Aminosäuretransporter 1 (hCAT1) hat aufgrund seiner Substratbereitstellungsfunktion für verschiedenste Stoffwechselprozesse eine zentrale Bedeutung hinsichtlich physiologischer und pathologischer Prozesse im menschlichen Gehirn. Gegenstand der vorliegenden Arbeit sind immunhistochemische Untersuchungen zur Verteilung des hCAT1-Proteins im gesunden menschlichen Gehirn, sowie die Bestimmung der neuronalen Zelldichte hCAT1-immunreaktiver Neurone im Hippocampus von depressiven Patienten im Vergleich zu psychiatrisch Gesunden. Es wurden post mortem Gehirne von 14 depressiven Patienten (sieben unipolar depressiv, sieben bipolar depressiv) und von neun psychiatrisch unauffälligen Vergleichspersonen untersucht. Es zeigte sich eine weite Verbreitung von hCAT1 im gesamten menschlichen Gehirn, auch wenn die Intensität der Expression in den verschiedenen Regionen des Gehirns variierte. Hinsichtlich der neuronalen Dichte hCAT1-exprimierender Neurone ergab sich in der Region des Cornu Ammonis 2 (CA2) eine signifikante Erniedrigung in beiden Hemisphären von depressiven Patienten. In den anderen untersuchten Regionen des Hippocampus (CA1, CA3, CA4 und Subiculum) wurden keine signifikanten Unterschiede gefunden. Die beschriebenen Ergebnisse geben Hinweise darauf, dass das hCAT1-Protein eine Rolle in der Pathogenese der Depression spielt und in Zukunft bei der Erarbeitung neuer therapeutischer Ansätze depressiver Erkrankungen von Interesse sein könnte.
L’attività museale ai tempi del Virus SARS-CoV-2: strategie digitali per i musei
Creators: name: Querci, Elena
name: Pavione, Enrica
name: Grechi, Daniele
name: Caccia, Camilla
Publisher: name: ----
Year: 2021
Subjects: Musei, Covid-19, mostre online, social network

description: I musei, durante il lockdown, hanno dovuto utilizzare nuovi strumenti e tecniche per promuovere l’arte, trasformando così il digitale nel “new normal del beneficio culturale”. Il crescente utilizzo delle mostre online e l’apertura di piattaforme sui social network, già presenti nel panorama prima della pandemia ma in modo molto ridotto, ha permesso agli interessati di prendere parte ad eventi interattivi e personalizzati. L’impegno dei musei, quindi, è stato quello di attivare e promuovere sempre di più la loro attività sui social network e siti web in modo tale che anche le persone che si trovano dall’altra parte del mondo possano lo stesso fruire delle proposte museali italiane. Attraverso una analisi di dati primari e secondari viene investigata la partecipazione e la tipologia dei visitatori ante e post Virus Covid-19. Un approfondimento, riguardante il periodo di chiusura, focalizzerà l’attenzione su tutte le attività svolte dai musei rispetto la loro virtuale apertura al pubblico con percorsi personalizzati e interattivi per la visione di mostre. Un sondaggio, condotto su un campione di 731 individui, è volto ad indagare se l’infrastruttura digitale creata nell’era della pandemia, potrà essere funzionale anche in futuro e potrà essere una nuova forma capace di diffondere arte e cultura.
description: ----, Vol 12, No 2 (2021): ISSUE 2/2021
Iberian Electricity Market spot and futures prices: comovement and lead-lag relationship analysis
Creators: name: Ferreira Dias, Marta
Publisher: name: International Journal of Sustainable Energy Planning and Management
Year: 2019

description: Traditionally, the literature on energy prices relied on cointegration methods to study the long-run relation between spot and futures prices and correlation analysis or causality tests to observe lead-lag relationships between them. In this paper we examine the comovements and lead-lag relationships within the Iberian electricity market using the continuous wavelet transform which operates in the time-frequency domain. This analysis may allow to distinguish relations at given frequencies and given time horizons. Empirical evidence for the period from July 2007 to February 2017 suggest that correlation between spot and futures markets is positive. Moreover, this result seems to be consistent across all maturities.
description: International Journal of Sustainable Energy Planning and Management, Vol 19 (2019)
Ka-Band AlGaN/GaN HEMT high power and driver amplifier MMICs
Creators: name: Van Heijningen, M.
name: Van Vliet, F.E.
name: Quay, R.
name: Van Raay, F.
name: Kiefer, R.
name: Müller, S.
name: Krausse, D.
name: Seelmann-Eggebert, M.
name: Mikulla, M.
name: Schlechtweg, M.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: In this paper the MMIC technology, design and characterization of a high power amplifier and driver amplifier MMIC at 30 GHz in AlGaN/GaN HEMT technol-ogy are presented. The MMICs are designed using CPW technology on a 390 µm thick SiC substrate. The measured small-signal gain of the driver is 14 dB at 28.5 GHz and the measured output power is 28.6 dBm at 28 GHz. The power amplifier shows a measured small-signal gain of 10.7 dB at 25.5 GHz and output power of 34.1 dBm at 27 GHz. Both MMICs have a very good yield and performance for a first iteration design.
Simplified validation of non-linear models for micro- and millimeter-wave electron devices
Creators: name: Raffo, A.
name: Santarelli, A.
name: Traverso, P.A.
name: Vannini, G.
name: Filicori, F.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: Large-signal modelling of electron devices for nonlinear MMIC design is a fundamental topic for the microwave community. Many different non-linear modelling approaches have been proposed in the last years, and quite often circuit designers suffer from the lack of reliable comparison criteria to identify which model (between those available) could be the most suitable for thedesired application. Moreover, similar strategies are needed even from the research groups,whose activity is devoted to the model identification and extraction, in order to quantifythe degree of accuracy achievable by the modelling approach adopted.In this paper an approach to verifylarge-signal model accuracy will be discussed, which is simplybased on the comparison between de-embedded measurements and model predictionsofY-parameters versus the bias voltages at the intrinsic device ports.
Surface dominated transport in single crystalline nanoflake devices of topological insulator Bi1.5Sb0.5Te1.8Se1.2
Creators: name: Xia, Bin
name: Ren, Peng
name: Sulaev, Azat
name: Liu, Peng
name: Shen, Shun-Qing
name: Wang, Lan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report experimental evidence of surface dominated transport in single crystalline nanoflake devices of topological insulator Bi1.5Sb0.5Te1.8Se1.2. The resistivity measurements show dramatic difference between the nanoflake devices and bulk single crystal. The resistivity and Hall analysis based on a two-channel model indicates that ~99% surface transport contribution can be realized in 200 nm thick BSTS nanoflake devices. Using standard bottom gate with SiO2 as a dielectric layer, pronounced ambipolar electric field effect was observed in devices fabricated with flakes of 100 - 200 nm thick. Moreover, angle-dependent magneto-resistances of a nanoflake device with thickness of 596 nm are fitted to a universal curve for the perpendicular component of the applied magnetic field. The value of phase coherence length obtained from 2D weak antilocalization fitting further confirmed the surface dominated transport. Our results open a path for realization of novel electric and spintronic devices based on the topological helical surface states.
description: 20 pages, 4 figures
On the large-signal modelling of AlGaN/GaN HEMTs and SiC MESFETs
Creators: name: Angelov, I.
name: Desmaris, V.
name: Dynefors, K.
name: Nilsson, P.Å.
name: Rorsman, N.
name: Zirath, H.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: A general purpose LS model for GaN and SiC FET devices was developed and evaluated with DC, S, and Large Signal measurements (LS). The FET model is generalized and extended with new feature in order to improve the management of harmonics, provide a more physical treatment of the dispersion as well as delay and model other specific effects in these devices. The model was implemented in a commercial CAD tool and exhibit good overall accuracy.
La Manutenzione: Funzione Vitale per le Imprese. Introduzione alla Total Productive Maintenance
Creators: name: Mella, Piero
Publisher: name: ----
Year: 2021
Subjects: produttività; qualità; manutenzione; costi di manutenzione; costi di non conformità; tipologie di manutenzione; manutenzione ordinaria; manutenzione migliorativa; o manutenzione preventiva; manutenzione condizionata; manutenzione “predittiva”; Computerize

description: I costi di manutenzione e di mantenimento dell’efficienza degli impianti giocano un ruolo importante per garantire l’economicità delle aziende e delle istituzioni. Gli impianti sottoposti a scarsa manutenzione diventano inefficienti e riducono la qualità progettuale dei prodotti, aumentando i costi, diretti e indiretti, di non conformità del prodotto. Aumentano, parallelamente, anche i costi delle attrezzature e riducono la produttività della “forza lavoro” funzionale agli impianti stessi; lievitano i costi di prevenzione e ispezione dei difetti; e, soprattutto, si accresce il rischio che vengano fabbricati prodotti difettosi che dovranno essere riparati o sostituiti e il rischio che si generino scarti di produzione non “riprocessabili”. Macchinari con scarsa manutenzione possono comportare tempi di fermo macchina più o meno prolungati che costringono altre unità produttive, sia a monte che a valle, ad arrestarsi, con conseguenti costi significativi per manodopera improduttiva, mancato rispetto dei termini di consegna, penali, perdita di immagine e persino una perdita di clienti. Per evitare tutti questi inconvenienti non bastano riparazioni ex post per ripristinare la funzionalità di impianti inefficienti. L'azienda invece deve attuare una politica di prevenzione che, per quanto possibile, eviti l'insorgere di difetti o il funzionamento anomalo delle macchine. Nel mondo odierno della produzione altamente informatizzata e automatizzata, con un sempre più ampio uso di macchinari automatici e di robot che funzionano collegati in serie e in parallelo, la moderna manutenzione non è più una reazione episodica a guasti e malfunzionamenti, ma un'attività che deve essere concepita come un nuovo servizio aziendale le cui caratteristiche si estendono sempre più a tutta l’organizzazione. Questa nuova funzione di manutenzione è denominata Total Productive Maintenance (TPM). TPM combina il “metodo occidentale” di manutenzione preventiva con il metodo “giapponese” di Total Quality Management, che coinvolge personale ad ogni livello aziendale. In questo breve studio esaminerò le diverse tipologie di manutenzione e la nuova politica aziendale della “TPM”, che prevede che il “controllo” dell’efficienza dei macchinari e degli impianti non sia funzione di un singolo Ufficio specializzato ma venga attuata dall’intera organizzazione.
description: ----, Vol 12, No 2 (2021): ISSUE 2/2021
Additional file 3 of The optimal neoadjuvant chemotherapy regimen for locally advanced gastric and gastroesophageal junction adenocarcinoma: a systematic review and Bayesian network meta-analysis
Creators: name: Wang, Tongya
name: Li, Changyang
name: Li, Xiang
name: Zhai, Jing
name: Wang, Shoulin
name: Shen, Lizong
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: Additional file 3: Table S1. The MeSH terms and the related entry terms.
Compact W-band SPQT MMIC switch using traveling wave concept
Creators: name: Chao, Shih-Fong
name: Tsai, Zuo-Min
name: Lin, Kun-You
name: Wang, Huei
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: A high performance W-band single-pole-quadruple-throw(SPQT) switch with a compact chip size using GaAs HEMT is demonstrated. This SPQT switch has a measured insertion loss of 3.9-5.5 dB and isolation higher than 30 dB from 70 to 102 GHz. A minimum insertion loss of 3.9dBwith isolation higher than 30dB was measured at 90 GHz.
Photocatalytic properties and luminescent sensing of a new 2D layer coordination polymer
Creators: name: Wang, Jun
name: Dong, Meng-Wei
name: Liu, Dong
name: Lu, Lu
name: Wu, Xiren
name: Dutta, Archisman
name: Kumar, Abhinav
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified

description: A 2D coordination polymer [Zn2(betc)(bip)2]·3H2O (1) has been synthesised by deploying mixed ligand strategy . The photoluminescence properties of 1 in different solvents have been investigated and its sensing properties to detect nitroaromatic compounds (NACs) have been explored. 1 displayed selective sensing for 4- nitrotoluene (4-NT) with lower limit of detection (LOD) 0.62 ppm. The probable mechanism for sensing of NACs by 1 ha s been addressed using quantum chemical calculations. Also photocatalytic properties of 1 to photo-decompose model aromatic dyes viz. methyl violet (MV) and 20 rhodamine B (Rh B) have been evaluated. The experiments indicated that 1 displayed better photocatalytic performance in photo-degrading MV than Rh B. The plausible mechanism through which 1 displayed photocatalytic degradation of aromatic dyes had been revealed using density of states (DOS) and partial DOS calculations. The probable mechanism for the photocatalytic property and emission quenching of 1 has been proposed with the aid of density of states and partial density of states calculations.
A 122 GHz SiGe active subharmonic mixer
Creators: name: Muller, A.
name: Thiel, M.
name: Irion, H.
name: Ruoß, H.-O.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: A 122 GHz subharmonic mixer for a radar-based sensor has been realized.It is fabricated in SiGe: C-HBT technology with a transit frequency of about 200 GHz. The conversion gain of the mixer is 23 dB at aLO-frequency of 60GHz with +3 dBm of power and a RF-input of 122.5GHz.The measured SSB noise figure at 122.5GHz is 12 dB.
Random attractors for stochastic porous media equations perturbed by space-time linear multiplicative noise
Creators: name: Gess, Benjamin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: Analysis of PDEs (math.AP)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Unique existence of solutions to porous media equations driven by continuous linear multiplicative space-time rough signals is proven for initial data in $L^1(\mathcal {O})$ on bounded domains $\mathcal {O}$. The generation of a continuous, order-preserving random dynamical system on $L^1(\mathcal {O})$ and the existence of a random attractor for stochastic porous media equations perturbed by linear multiplicative noise in space and time is obtained. The random attractor is shown to be compact and attracting in $L^{\infty}(\mathcal {O})$ norm. Uniform $L^{\infty}$ bounds and uniform space-time continuity of the solutions is shown. General noise including fractional Brownian motion for all Hurst parameters is treated and a pathwise Wong-Zakai result for driving noise given by a continuous semimartingale is obtained. For fast diffusion equations driven by continuous linear multiplicative space-time rough signals, existence of solutions is proven for initial data in $L^{m+1}(\mathcal {O})$.
description: Published in at http://dx.doi.org/10.1214/13-AOP869 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Factors influencing willingness to adopt renewable energy technologies among micro and small enterprises in Lagos State Nigeria
Creators: name: Adepoju, Adeyemi Oluwaseun
name: Akinwale, Yusuf Opeyemi
Publisher: name: International Journal of Sustainable Energy Planning and Management
Year: 2019

description: Micro and small enterprises (MSEs) are the engine of economic growth in Nigeria. But they also contribute heavily to the climate change through their choice of energy. Mostly prefer source is the fossil fuel for electricity generation despite the growing awareness of the need to reduce greenhouse gas emissions by embracing renewable energy technologies across the globe. Meanwhile, MSEs accounts for a large proportion of businesses in Lagos State, Nigeria and the situation is not different. Hence, this study investigated the factors influencing willingness to adopt renewable energy technologies among the MSEs. The study surveyed 300 MSEs between January and March, 2017 in Lagos State, Nigeria. Using logit regression, the results showed that creating awareness and knowledge about renewable energy, adequate government policies, trust, peer-effect, development of renewable energy markets and technology acceptance factors (if it makes life easier, simple to use and improve the quality of work) are all positive and statistically significant in influencing the willingness to adopt renewable energy technologies among the MSEs. Cooperation between private enterprises and relevant government agencies supported by ‘political will’ is required to promote the aforementioned factors influencing the willingness to adopt RETs in Nigeria.
description: International Journal of Sustainable Energy Planning and Management, Vol 19 (2019)
BioExcel-2 Deliverable D6.2 – Quality Assurance and Risk Management Plan
Creators: name: Apostolov, Rossen
Publisher: name: Zenodo
Year: 2019

description: This document builds on D6.1 – Management plan (where we presented the operational structure of the project) and discusses the overall quality monitoring process for the project. Particular attention is given to the review process of deliverables and annual reports as well as milestone completion. Success criteria and KPIs are described and their status will be followed-up in the management reports. An additional section covers the overall contingency strategy where potential risks are identified for monitoring and regular assessment in the periodic management reports.
Spin Wave Theory of Spin 1/2 XY Model with Ring Exchange on a Triangular Lattice
Creators: name: Owerre, Solomon A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present the linear spin wave theory calculation of the superfluid phase of a hard-core boson $J$-$K$ model with nearest neighbour exchange $J$ and four-particle ring-exchange $K$ at half filling on the triangular lattice, as well as the phase diagrams of the system at zero and finite temperatures. We find that the pure $J$ model (XY model) which has a well known uniform superfluid phase with an ordered parameter $M_x=\neq 0$ at zero temperature is quickly destroyed by the inclusion of a negative-$K$ ring-exchange interactions, favouring a state with a $(\frac{4π}{3}, 0)$ ordering wavevector. We further study the behaviour of the finite-temperature Kosterlitz-Thouless phase transition ($T_{KT}$) in the uniform superfluid phase, by forcing the universal quantum jump condition on the finite-temperature spin wave superfluid density. We find that for $K \textless 0$, the phase boundary monotonically decreases to T=0 at $K/J = -4/3$, where a phase transition is expected and $T_{KT}$ decreases rapidly while for positive $K$, $T_{KT}$ reaches a maximum at some $K\neq 0$. It has been shown on a square lattice using quantum Monte Carlo(QMC) simulations that for small $K\textgreater 0$ away from the XY point, the zero-temperature spin stiffness value of the XY model is decreased\cite{F}. Our result seems to agree with this trend found in QMC simulations.
A 100 W high-efficiency GaN HEMT amplifier forS-band wireless system
Creators: name: Maekawa, Arata
name: Nagahara, Masaki
name: Yamamoto, Takashi
name: Sano, Seigo
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: We have successfully developed a 100WAlGaN/GaN power amplifier with a bandwidth of 300MHzin S-band, operating at 50V drain bias voltage. This amplifier consists of one HEMT die developed for L/S-band frequency operation and a single-ended package. The developed amplifier has an output power of 100W and ahigh linear gain of more than 13.5dB in the frequency range of 2.6GHz to 2.9GHz under CW or pulsed conditions [200usec (pulse width) and 2msec (period)]. High drain efficiency of 58% was also achieved at an output power of100W and frequency of 2.8GHz. To the best of our knowledge this is the first report of 100W AlGaN/GaNHEMT amplifier developed for S-band high powerapplication.
Multistage broadband amplifiers based on GaNHEMT technology for 3G/4G base station applications with extremely high bandwidth
Creators: name: Wiegner, D.
name: Merk, T.
name: Seyfried, U.
name: Templ, W.
name: Merk, S.
name: Quay, R.
name: Van Raay, F.
name: Walcher, H.
name: Massler, H.
name: Seelmann-Eggebert, M.
name: Reiner, R.
name: Moritz, R.
name: Kiefer, R.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: GaN HFETs have been proposed for high power high linearity and high bandwidth applications andreached tremendous output power levels [1]. However, there are relatively few circuit examples especially for wideband power amplifiers fulfilling the requirements of future multiband/multistandard capable 3G/4G base stations. This work presents first promising results of realised GaN based wideband power amplifier demonstrators for the mentionedfield of application. Two different amplifier concepts for thefinal stage of a power amplifier module for medium range multiband base station applications in the L- and S-Bandhave been implemented as first amplifier demonstrators. Theamplifiers have been characterized by using single carrierW-CDMA signals and showed a promising high bandwidthfor output power levels up to > 10 W while meeting the3GPP ACLR specification in a wide frequency range.
A high purity 60 GHz-band single chip  X8 multiplier with low phase noise
Creators: name: Kärnfelt, Camilla
name: Kozhuharov, Rumen
name: Zirath, Herbert
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: A single chip multiplier by eight (x8) MMIC for 52-62 GHz output frequency is presented. The multiplier consists of quadrupler stage followed by a high pass filter, an inter-stage amplifier and a doubler stage. The required output power is achieved by a two stage buffer amplifier on the output. An output power exceeding 7 dBm is achieved from 52 to 61 GHz. The rejection of the unwanted harmonics is better than 28 dB and the detected degradation of phase noise due to the circuit is less than 1dB at 100 kHz offset from the carrier, compared to a theoretical value of 18.06 dB for a multiplier by eight. The bias configuration is optimized to reduce the number of the required bias voltages to three. The total power dissipation is 450 mW.  The MMIC is designed and manufactured in a commercial 0.15 µm phemt process from WIN foundry.  To our knowledge this is the first reported MMIC multiplier by eight based on PHEMT technology.  Index Terms  —  doubler , LO-chain, MMIC, quadrupler, x8.
The gravity dual of supersymmetric gauge theories on a squashed three-sphere
Creators: name: Martelli, Dario
name: Passias, Achilleas
name: Sparks, James
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present the gravity dual to a class of three-dimensional N=2 supersymmetric gauge theories on a U(1) x U(1)-invariant squashed three-sphere, with a non-trivial background gauge field. This is described by a supersymmetric solution of four-dimensional N=2 gauged supergravity with a non-trivial instanton for the graviphoton field. The particular gauge theory in turn determines the lift to a solution of eleven-dimensional supergravity. We compute the partition function for a class of Chern-Simons quiver gauge theories on both sides of the duality, in the large N limit, finding precise agreement for the functional dependence on the squashing parameter. This constitutes an exact check of the gauge/gravity correspondence in a non-conformally invariant setting.
description: 37 pages. v2: typos fixed, references added, new section 2.5 added discussing the solution in standard global coordinates; v3: more typos fixed, version published on Nucl. Phys. B
I sistemi bibliotecari di fronte ai periodici elettronici: problematiche gestionali e scenari organizzativi
Creators: name: Bardi, Luca
name: Ortigari, Anna
name: Maurizio, Vedaldi
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: M-STO/08 Archivistica, bibliografia e biblioteconomia

description: Si tenta di evidenziare le problematiche organizzative e gestionali più rilevanti che i periodici elettronici pongono ai Sistemi Bibliotecari e di delineare un'ipotesi di lavoro finalizzata all'individuazione di un possibile modello organizzativo praticabile
The keeper and the zoo
Creators: name: Feist, Brenda Lynn
Publisher: name: University of British Columbia
Year: 2014

description: I am a collector of text, both beautifully constructed and nonsensical sentences, and images that promise to mean something for me. I don’t know what they mean, only that I feel compelled to be with them awhile, so I KEEP, ARTICULATE AND ARRANGE them until I understand. Meaning, ultimately, is a matter of adjacent data. The Keeper and the Zoo is composed of interdependent ideologies and voices, pieced together with quotation, meditation, narrative, memory, and poems that question the general prohibition against perceptual experience. It is the support paper for my MFA graduate exhibition of the same name. I read once that if you put some molecules in a box, once in a while they’ll bump up against each other and you can study the collisions. If you put more molecules in the box, more collisions. But if you put a billion molecules in a box, they become sound waves. There was nothing in the behavior of the few that suggested what the many could do. The body is that box. While watching for collisions, I use zoos, circuses, animal husbandry and experimentation, and the fashion/beauty complex to think about the domestication of the human psyche and language as an immersion environment.. As the writer David Shields says, [it’s] a record and an embodiment of a process of knowing. It’s about the making of knowledge, which is a much larger and more unstable thing than the marshaling of facts. The animal in my work is the wild mind; pure awareness.
PDEM-based stochastic analysis of a train-track-bridge system using dimension-reduced simulations of turbulent winds and track irregularities
Creators: name: Wang, Lidong
name: Zhang, Xun
name: Bu, Xiumeng
name: Han, Yan
name: Zhu, Zhihui
name: Cai, Chunsheng
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: Winds and track irregularities are inherently random in nature, but most of previous work did not fully consider this randomicity in computation of the dynamic response of train-track-bridge system. This study aims to develop an effective framework for stochastic analysis of the wind-train-track-bridge system based on the probability density evolution method. A dimension-reduced simulation scheme is applied since the involved system has high-dimensional random variables. Therefore, the representative samples of turbulent winds and track irregularities can be well expressed with only two random variables. In numerical examples, the accuracy of the framework is verified, and the influences of the mean wind velocity on the random vibration characteristics of the system are investigated. The results show that the dispersion of the lateral displacement of the bridge is larger than the vertical displacement, but both the vertical and lateral accelerations of the bridge have larger dispersions. The existence of lateral wind loads can reduce the dispersion of the lateral wheel–rail interaction forces of the wheel in the leeward direction. Considering the confidence levels of 75%, 85% and 95%, the train can run safely over the bridge in the wind velocity range of 0–25 m/s.
Additional file 5 of The optimal neoadjuvant chemotherapy regimen for locally advanced gastric and gastroesophageal junction adenocarcinoma: a systematic review and Bayesian network meta-analysis
Creators: name: Wang, Tongya
name: Li, Changyang
name: Li, Xiang
name: Zhai, Jing
name: Wang, Shoulin
name: Shen, Lizong
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: Additional file 5: Table S3. Estimates of effects and quality ratings for comparison of regimens of neoadjuvant chemotherapy for locally advanced gastric cancer.
Pubblicazioni cartacee e pubblicazioni digitali: quale futuro per la comunicazione scientifica?
Creators: name: Santoro, Michele
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: M-STO/08 Archivistica, bibliografia e biblioteconomia

description: L'articolo esamina i percorsi e gli strumenti della comunicazione scientifica; mette in luce gli odierni sviluppi caratterizzati dall'avvento dei periodici elettronici e dai server di preprint.
Supplementary document for Electro-optic properties of liquid crystal cells with nanowall electrodes - 6713854.pdf
Creators: name: Chiang, Yu-Chih
name: Suryantari, Risti
name: Lin, Shih-Hung
name: SILALAHI, HARRY
name: Chiang, Wei-Fan
name: Shih, Yi-Hong
name: Choi, Wing-Kit
name: Huang, Chia-Yi
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Electro-optic properties of liquid crystal cells with nanowall electrodes
Shape Classification of Building Information Models using Neural Networks
Creators: name: Evangelou, Iordanis
name: Vitsas, Nick
name: Papaioannou, Georgios
name: Georgioudakis, Manolis
name: Chatzisymeon, Apostolos
Publisher: name: The Eurographics Association
Year: 2021
Subjects: Computing methodologies
Neural networks
Shape analysis

description: The Building Information Modelling (BIM) procedure introduces specifications and data exchange formats widely used by the construction industry to describe functional and geometric elements of building structures in the design, planning, cost estimation and construction phases of large civil engineering projects. In this paper we explain how to apply a modern, low-parameter, neural-network-based classification solution to the automatic geometric BIM element labeling, which is becoming an increasingly important task in software solutions for the construction industry. The network is designed so that it extracts features regarding general shape, scale and aspect ratio of each BIM element and be extremely fast during training and prediction. We evaluate our network architecture on a real BIM dataset and showcase accuracy that is difficult to achieve with a generic 3D shape classification network.
description: Eurographics Workshop on 3D Object Retrieval
description: Short Papers
description: 1
description: 4
description: Iordanis Evangelou, Nick Vitsas, Georgios Papaioannou, Manolis Georgioudakis, and Apostolos Chatzisymeon
description: CCS Concepts: Computing methodologies --> Neural networks; Shape analysis
Additional file 6 of The optimal neoadjuvant chemotherapy regimen for locally advanced gastric and gastroesophageal junction adenocarcinoma: a systematic review and Bayesian network meta-analysis
Creators: name: Wang, Tongya
name: Li, Changyang
name: Li, Xiang
name: Zhai, Jing
name: Wang, Shoulin
name: Shen, Lizong
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: Additional file 6: Table S4. The stratified analysis of OS, DFS and R0 resectability according to treatment duration.
Capacity Analysis of Linear Operator Channels over Finite Fields
Creators: name: Yang, Shenghao
name: Ho, Siu-Wai
name: Meng, Jin
name: Yeung, En-hui
Publisher: name: arXiv
Year: 2011
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Motivated by communication through a network employing linear network coding, capacities of linear operator channels (LOCs) with arbitrarily distributed transfer matrices over finite fields are studied. Both the Shannon capacity $C$ and the subspace coding capacity $C_{\text{SS}}$ are analyzed. By establishing and comparing lower bounds on $C$ and upper bounds on $C_{\text{SS}}$, various necessary conditions and sufficient conditions such that $C=C_{\text{SS}}$ are obtained. A new class of LOCs such that $C=C_{\text{SS}}$ is identified, which includes LOCs with uniform-given-rank transfer matrices as special cases. It is also demonstrated that $C_{\text{SS}}$ is strictly less than $C$ for a broad class of LOCs. In general, an optimal subspace coding scheme is difficult to find because it requires to solve the maximization of a non-concave function. However, for a LOC with a unique subspace degradation, $C_{\text{SS}}$ can be obtained by solving a convex optimization problem over rank distribution. Classes of LOCs with a unique subspace degradation are characterized. Since LOCs with uniform-given-rank transfer matrices have unique subspace degradations, some existing results on LOCs with uniform-given-rank transfer matrices are explained from a more general way.
description: To appear in IEEE Transactions on Information Theory