Experimental confirmation of FK concentrator insensitivity to chromatic aberrations

The FK concentrator has demonstrated during the last years that compares very well with other Fresnel-based concentrator optics for CPV. There are several features that provide the FK high performance: (1) high optical efficiency; (2) large tolerance to tracking misalignment and manufacturing errors, thanks to a high CAP (Concentration-Acceptance Product); (3) good irradiance uniformity and low chromatic dispersion on the cell surface. Non-uniformities in terms of absolute irradiance and spectral content produced by conventional CPV systems can originate electrical losses in multi-junction (MJ) solar cells. The aim of this work is to analyze the influence of these non-uniformities in the FK concentrator performance and how FK concentrator provides high electrical efficiencies thanks to its insensitivity to chromatic aberrations, especially when components move away from the module nominal position due to manufacturing misalignments. This analysis has been done here by means of both, experimental on-sun measurements and simulations based on 3D fully distributed circuit model for MJ cells.

cGMP mediates the vascular and platelet actions of nitric oxide: confirmation using an inhibitor of the soluble guanylyl cyclase.

The L-arginine:nitric oxide (NO) pathway is believed to exert many of its physiological effects via stimulation of the soluble guanylyl cyclase (SGC); however, the lack of a selective inhibitor of this enzyme has prevented conclusive demonstration of this mechanism of action. We have found that the compound 1H-[1,2,4]oxadiazolo[4,3,-a]quinoxalin-1-one (ODQ) inhibits the elevation of cGMP induced by the NO donor S-nitroso-DL-penicillamine in human platelets and rat vascular smooth muscle (IC50 = 10-60 nM and <10 nM, respectively) and that this is accompanied by prevention of the platelet inhibitory and vasodilator actions of NO donors. ODQ also inhibited the antiaggregatory action of NO generated by the platelets but did not affect the action of prostacyclin or that of a cGMP mimetic. In addition, ODQ inhibited the vasodilator actions of endogenously released NO and of NO generated after induction of NO synthase in vascular preparations. It did not, however, affect the increase in vascular smooth muscle cGMP or the dilatation induced by atrial natriuretic factor. ODQ had no effect on NO synthase activity, nor did it react with NO. It did, however, potently (IC50 approximately 10 nM) inhibit the activity of the SGC in cytosol obtained from crude extract of rat aortic smooth muscle. Thus ODQ prevents the actions of NO on platelets and vascular smooth muscle through its potent inhibitory effect on the SGC.

Confirmation, what it is, and what it requires : in nine addresses /

Mode of access: Internet.

Methods for aquatic toxicity identification evaluations : phase III : toxicity confirmation procedures /

Mode of access: Internet.

A dissertation on the right and obligation of the civil magistrate to take care of the interest of religion, and provide for its support; in which the arguments in confirmation of said right and obligation, both from reason and the Sacred Scriptures, are adduced: the usual objections examined,--together with several corollaries deduced from the subject.

Code des commensaux ou recueil général des édits, déclarations, ordonnances,... portant établissement & confirmation des privilèges,... préséances, & droit honorifiques des officiers-domestiques & commensaux de la maison du roy, des maisons royales et de leurs veuves ...

Mode of access: Internet.

Exposition d'un systême plus simple de médecine, ou Éclaircissement et confirmation de la nouvelle doctrine médicale de Brown; traduite d'après l'édition italienne et les notes de Joseph Franck ... Par J. B. F. Léveillé ...

Mode of access: Internet.

Sermons on confirmation : and an address delivered after administering that holy and apostolic rite /

Mode of access: Internet.

Political appointees : turnover rates in executive schedule positions requiring Senate confirmation : fact sheet for the Chairman, Committee on Governmental Affairs, U.S. Senate /

"B-249785"--P. [1].

Preparation for Confirmation : fifty lessons for children approaching the age for Confirmation ...

Mode of access: Internet.

Contention between liberality & prodigality, 1602;

Original title : A pleasant comedie, shewing the contention betweene Liberalitie and Prodigalitie ... London, Printed by S. Stafford for G. Vincent, 1602.

The lady of the manor, being a series of conversations on the subject of confirmation.

Mode of access: Internet.

The great mystery of godliness incontrovertible; or, Sir Isaac Newton and the Socinians foiled in the attempt to prove a corruption in the text, 1 Tim. III. 16, [theòs ephanerōthē en sarki] : containing a review of the charges brought against the passage; an examination of the various readings; and a confirmation of that in the received text on principles of general and biblical criticism /

Greek text in title.

A true narrative of an unhappy contention in the church at Ashford; and the several methods used to bring it to a period /

Bookseller's advertisement, p. [29].

A treatise on Baptism : with an exhortation to receive it, translated from the works of St. Basil the Great, to which is added a treatise on Confirmation.

Includes bibliographical footnotes.