133,262 research outputs found
I dati multisensore e multirisoluzione nello studio degli ambienti aridi
No full textI deserti sono i luoghi dove le condizioni estreme di aridità limitano fortemente o totalmente lo sviluppo di una copertura vegetale. Così le successioni
stra t i g rafiche delle formazioni geologiche e
la evidente natura delle forme appaiono nelle
immagini telerilevate come caratteri distintivi del
p a e s a g g i o .
At t ra v e rso l’applicazione di metodologie di
Telerilevamento, l’elaborazione di modelli tridimensionali
del terreno e rilevamenti in sito, si
p ropongono alcune applicazioni mirate alla individuazione
di unità geomorfologiche secondo
legende mira t e. Viene inoltre presentata una
importante estensione del concetto di bene geologico
e geomorfologico ampiamente discusso in
ambito nazionale ed internazionale riguardo ai
temi del geoturismo, proponendo una lettura dei
“geositi da satellite”.
Tale approccio metodologico consente l’analisi a
media e piccola scala, in un contesto di studio
regionale e sub-re g i o n a l e, di vaste porzioni di territorio,
fornendo valutazioni circa le dinamiche
ed i processi che regolano l’evoluzione dei gra n d i sistemi fisiografici
Exploring the 3-D Integrability of Perpendicular Nanomagnet Logic Technology
No full textConventional integrated circuits' design uses one layer to place logic gates and many additional layers to route interconnections. This design technique is built around the constraints of MOSFET transistors. To further improve the performance of integrated circuits, it is necessary to go beyond this limitation and to design true 3-D circuits. Although this possibility is difficult to implement with transistor technology, perpendicular nanomagnet logic (pNML) intrinsically enables the design of 3-D devices. It is very low-power consumption and offers the possibility to be integrated in the back end of traditional fabrication processes. These characteristics make pNML an ideal candidate to implement low-power coprocessors. In this paper, we demonstrate the possibilities offered by pNML technology by designing a 3-D coprocessor for the summed-area table, one of the most common algorithms used in image processing. We demonstrate the effectiveness of the design and the technology itself by comparing the performance with transistor implementations. The 3-D design makes it possible to obtain a small circuit footprint. Overall, the results presented here are a great step forward toward the design of 3-D coprocessors in pNML technology
Melis: an incremental method for the lexical annotation of domain ontologies
No full textIn this paper, we present MELIS (Meaning Elicitation and Lexical Integration System), a method and a software tool for enabling an incremental process of automatic annotation of local schemas (e.g. relational database schemas, directory trees) with lexical information. The distinguishing and original feature of MELIS is the incremental process: the higher the number of schemas which are processed, the more background/domain knowledge is cumulated in the system (a portion of domain ontology is learned at every step), the better the performance of the systems on annotating new schemas.MELIS has been tested as component of MOMIS-Ontology Builder, a framework able to create a domain ontology representing a set of selected data sources, described with a standard W3C language wherein concepts and attributes are annotated according to the lexical reference database.We describe the MELIS component within the MOMIS-Ontology Builder framework and provide some experimental results of ME LIS as a standalone tool and as a component integrated in MOMIS
Melis (ι.), Tasmowski (ι.), Verluyten (P.) & Willems (D.)· Les constructions de la phrase française.
No full textPierrard Michel. Melis (ι.), Tasmowski (ι.), Verluyten (P.) & Willems (D.)· Les constructions de la phrase française.. In: Revue belge de philologie et d'histoire, tome 64, fasc. 3, 1986. Langues et littératures modernes - Moderne taal- en letterkunde. pp. 573-576
The Differential Role of Parenting in Externalizing and Internalizing Behaviors of Male and Female Turkish Preschoolers
No full text##nofulltext##Müren, Hatice Melis (MEF Author)..
Foraminifers biodiversity and Holocene evolution of Phetchaburi coastal area (Thailand Gulf).
No full textAbstract
Twenty three surface sediments were collected in May 2002, in the Phetchaburi coastal area (Thailand Gulf) starting from the outer margin of the vegetated zone, to a depth of about 20 m, covering an area of about 800 km2. One core was taken in the north-eastern area of the Mae Khlong delta plain to investigate the recent paleoenvironmental evolution of this zone, thirteen core levels were collected for micropaleontological (foraminifers) investigation. This highly populated area is characterized by the inflow of the Mae Khlong, the second major river in Thailand, and the Khlong Ban Labun River. Empty tests pertaining to the thanathocoenosis are dominant and, as for the few living specimens, are most frequently represented by Ammonia spp. The collected species are typically of brackish-water settings. Foraminiferal diversity is rather low and increases from the northern part to the central-southern part of the studied area, where taxa typical of the Indo-Pacific realm (such as Miliolids and Schackoinella globosa) are more abundant than the cosmopolitan species such as Ammonia tepida and Gaudryina exilis. The geographic distribution of the four foraminiferal assemblages, defined on the basis of the cluster analysis, indicates that the northern sector is affected by severe environmental conditions. Since this area is affected by the Mae Khlong River input, the salinity fluctuation is probably a controlling factor on the foraminifers distribution. Ammonia tepida, A. inflata, Murrayinella murrayi and Miliolinella sp.1 are the most opportunistic species, able to tolerate wide environmental variability. As regards to the Holocene data, the study carried out on the core located on the Mae Khlong delta plain, indicates that the tidal flat paleoenvironment has been subject to different fresh-water influence, with a general prograding trend
I foraminiferi dell'area costiera di Phetchaburi (Tailandia): osservazioni preliminari.
No full textRIASSUNTO – Sono riportati i risultati preliminari riguardanti lo studio di foraminiferi recenti prelevati da sedimenti infralitorali della zona costiera di Phetchaburi (Thailandia), settore caratterizzato dall'apporto di importanti corsi d'acqua, fra i quali il Mae Khlong, secondo fiume della Thailandia, e il Khlong Ban Labun. Le associazioni appaiono in prevalenza dominate da esemplari di piccole dimensioni, con gusci sottili, caratteristiche frequentemente riscontrate in foraminiferi di ambienti paralici. Le microfaune risultano poco diversificate a settentrione, nell’area prospiciente l’apparato deltizio del fiume Mae Khlong, mentre nella parte centro-meridionale sono relativamente più ricche di specie. La maggior parte degli esemplari rinvenuti appartiene alla tanatocenosi; gli individui viventi all’atto del prelievo, evidenziati con rosa Bengala, sono invece molto scarsi. Molte specie sono tipiche di ambienti paralici e sono più abbondanti nei fondali antistanti il delta del Mae Khlong. Ammonia spp., e in particolare A. tepida, risulta essere il taxon dominante ed è correlabile direttamente all’influenza delle acque fluviali: questa è maggiore nel settore settentrionale e diminuisce in quello meridionale, dove si riscontra un aumento degli altri taxa calcarei perforati e di quelli porcellanacei, rappresentati per lo più da Miliolidae. Accanto a specie ad ampia diffusione (Ammonia tepida, Gaudryina exilis) sono stati evidenziati taxa a diffusione esclusivamente indo-pacifica (Murrayinella murrayi, Schackoinella globosa )
Peptit nanoyapıların biyomedikal uygulamaları
No full textCataloged from PDF version of article.Includes bibliographical references (leaves 171-194).Thesis (Ph. D.): Bilkent University, Materials Science and Nanotechnology Program, İhsan Doğramacı Bilkent University, 2016.by Melis Şardan Ekiz
Developing a vulnerability index for road networks under hidrogeological events
No full textRecently, in different countries, the need to manage and predict emergency situations has increased. Road nets and transportation infrastructures are essential to assure the social and economic development of a country, for this reason it is necessary to protect them from calamitous events. The delay in rescue operations during emergency situations, caused by inefficiency of transportation system, can considerably increase the damages. For a long time these topics have been neglected in the design / construction / maintenance of road networks. For this reason it is essential to assess existing risks on road infrastructures before that calamitous events occur, in order to plan appropriate maintenance interventions. The vulnerability assessment of a road network is one of the three fundamental steps towards a comprehensive definition of risk. However this topic has attracted the attention of researchers only recently. The concept of vulnerability has not yet been unambiguously defined and it is possible to find different approaches and methodologies to study road vulnerability.
The paper develops a careful analysis of previous researches about the study of road vulnerability. It shows different methodologies and indicators that can be used, these depend on the scale of analysis or the object of analysis. For example, about the scale of analysis, it is different if we analyze the vulnerability a road network (accessibility, connectivity, capacity, reliability ecc. ) or if we study the vulnerability of a part of the road (with specific check lists) or moreover, if we talk about structural vulnerability of bridges, hydraulic works etc. The paper shows how we can use vulnerability indicators to assess the reliability of a road network; these indicators are useful to the Administrators to improve the distribution of the interventions and the economic resources along the entire road network
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