326,801 research outputs found
Harnessing high altitude solar power
No full textAs an intermediate solution between Glaser's satellite solar power (SSP) and ground-based photovoltaic (PV) panels, this paper examines the collection of solar energy using a high-altitude aerostatic platform. A procedure to calculate the irradiance in the medium/high troposphere, based on experimental data, is described. The results show that here a PV system could collect about four to six times the energy collected by a typical U.K.-based ground installation, and between one-third and half of the total energy the same system would collect if supported by a geostationary satellite (SSP). The concept of the aerostat for solar power generation is then briefly described together with the equations that link its main engineering parameters/variables. A preliminary sizing of a facility stationed at 6 km altitude and its costing, based on realistic values of the input engineering parameters, is then presented
L’inserimento di ceramiche nelle architetture. Problemi metodologici e censimento per un “Corpus” delle decorazioni ceramiche
No full textFrancisci Redi patricii Aretini, Opusculorum pars prior, sive, Experimenta circa generationem insectorum : accedit J. Frid. Lachmund, De ave diomedea dissertatio.
No full textIncludes indexes.Paging, v. 1: [12], 216, [20], 40, [8] p. (last 2 blank), [45] leaves of plates (19 folded); v. 2: [8], 312, [32] p., [12] leaves of plates (10 folded).Getty copy lacks M12, v. 1 (blank).Signatures, v. 1: *⁶ A-I¹² K¹⁰ L-M¹². Vol. 2: pi⁴ A-O¹² P⁴.Frontispiece of v. 1 signed by Romeyn de Hooghe and dated 1670. That of v. 2 signed by Cornelis Decker. Some in-text engravings in addition to plates. Woodcut device on both t.p.'s.Edition statement from p. [12] of 1st sequence, v. 1. Previously published Amsterdam, 1671. Esperienze intorno alla generazione degli insetti first published Florence, 1668.T.p. of v. 1 has date 1686, that of v. 2 has 1685. Title on t.p., v. 2: Francisci Redi nobilis Aretini Experimenta circa varias res naturales, speciatim illas quae ex Indiis afferuntur."Elenchus authorum, quo hoc tractatu citantur vel illustrantur"--K1r-K3v, v. 1.v. 1. Experimenta circa generationem insectorum. Accedit appendicis loco: J.F. Lachmund De ave diomedea dissertatio. -- v. 2. Experimenta circa varias res naturales, speciatim illas quae ex Indiis afferuntur -- Observationes de viperis -- Epistola de quibusdam objectionibus contra suas de viperis observationes -- Observationes circa illas guttulas & fila ex vitro, quae rupta in quaecunque sui parte, dissiliunt & comminuuntur.Mode of access: Internet.Gift inscription on front pastedown to the botanist MichelAngiolo Tilli, dated 1726. Gift inscription of William Holmes to Alexander John.(?) Smith on front free endpaper. Signature of J.S. Albrecht on both t.p.'s; that on t.p. of v. 1 lined out in favor of "Etlinger." Ownership inscription of Lisa & Leonard Baskin on back pastedown, with Baskin's initial L written before signature letter B of 1st sequence, and with his printed labels for Fort Hill and Lurley Manor on front pastedown.Bound in 1 vol. in vellum. Author & title written at head of spine. Edges red
Investigation of the RESURF Dielectric Inserted (REDI) LDMOS as a novel Silicon-based RF Power Device
No full textIn this paper, a novel power device named as RESURF Dielectric Inserted (REDI) LDMOS is put forward. It is fully compatible with standard CMOS technology, which can sharply reduce the cost. In this novel REDI LDMOS, a RESURF structure and a dielectric region are inserted at the suitable position of the drift region to reconstruct the electric field and the electric potential distributions of the channel region and the drift region, which can effectively reduce the peak electric field and increase the breakdown voltage. The impacts of key device parameters on REDI LDMOS behaviors are comprehensively studied with device simulation tools. The structural parameters are optimized to obtain acceptable high breakdown voltage (> 10V), excellent on-state behavior and high frequency performance (> 10GHz).http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000265971000049&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Engineering, Electrical & ElectronicPhysics, AppliedEICPCI-S(ISTP)
Vocabolario degli Accademici della Crusca
No full textVoci maniere di dire e osservazioni di toscani scrittori e par la maggior parte del Redi raccolte corredate di note da Andrea PastaTomo 1-2: XXXII, 409 S., [1] Bl., 531 S.; tomo 3-4: 518 S., [1] Bl., 353 S., [1] Bl. ; tomo 5-6: 480, 554 S., [1] Bl. ; tomo 7: 235, 243, 85, 165 S
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