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1.
A C-Language program which tabulates the isoscalar factors and Clebsch-Gordan coefficients for products of representations in SU(3) ⊃ SU(2) ⊗ U(1) is presented. These are efficiently computed using recursion relations, and the results are presented in exact precision as square roots of rational numbers. Output is in LaTeX format.  相似文献   

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Für viele heutige IT-Dienste w?re eine st?rkere Authentifizierung als die mit Nutzername und Passwort wünschenswert. Insbesondere für sicherheitskritische Prozesse, wie das Zurücksetzen von Passw?rtern, sind bestehende L?sungen oft unbefriedigend. Der neue Personalausweis (nPA) stellt mit seiner eID-Funktion die M?glichkeit für eine starke Authentisierung bereit. Jedoch stehen dem erreichbaren Sicherheitsgewinn nicht unerhebliche Kosten gegenüber, die pro Dienstanbieter aufgebracht werden müssen, um die eID-Funktion zu nutzen. Wir zeigen mit dem Konzept Auth2(nPA), wie eine Zweifaktorauthentisierung mit dem nPA von mehreren Einrichtungen gemeinsam genutzt werden kann. Um für diesen Dienst ein Berechtigungszertifikat zu erhalten, realisiert das Auth2(nPA)-Konzept ein vergleichbar hohes Datenschutzniveau wie die generische eID-L?sung mit getrennten Dienstanbietern.  相似文献   

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An explicit impact control scheme is modified as the main control scheme, while an intelligent control method is designed to deal with uncertainties and varying environment parameters in a mechatronics approach to anti‐personnel (AP) mine detection. The device imitates the manual hand‐prodding technique for mine detection. It inserts a bayonet into the soil and models the dynamics of the manipulator and environment parameters, such as stiffness variation in the soil, to control the impact caused by making contact with a stiff object. An adaptive neuro‐fuzzy plus PID controller is employed to switch from a conventional PID controller to neuro‐fuzzy impact control (NFIC) when an impact is detected. The developed control schemes are validated through experimental work.  相似文献   

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Abstract— An improved AMOLED with an a‐Si TFT backplane based on a unique structure is reported. The new structure is refered to as a dual‐plate OLED display (DOD). While a top‐emission OLED array is directly fabricated on a TFT backplane, the DOD consists of an upper OLED substrate and a lower TFT substrate, which are independently fabricated. Because the OLED substrate, which is fabricated through the process flow of bottom emission, is attached to the TFT substrate, the light is emitted in the opposite direction to the TFT backplane. The DOD enables the design of large‐sized TFTs and a complicated pixel circuit. It can also not only achieve higher uniformity in luminance in large‐sized displays due to the low electrical resistance of the common electrode, but also wider viewing angles.  相似文献   

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The phase diagram for the quasi-binary Tl2Se–SnSe2 system was constructed based on the results of studies by both thermal analysis and X-ray diffraction. The diagram was compared with two other diagrams for the same system published earlier by other authors. The study produced substantial evidence corroborating the formation of two new chemical compounds.  相似文献   

20.
The quasi-binary Tl2Te–In2Te3 phase diagram has been constructed based on the results of studies by both thermal analysis and X-ray diffraction. Our earlier data obtained through electrochemical investigation of this system were of aid for the final establishment of the phase diagram. Numerical values of the phase transition temperatures at different alloy compositions have been presented in a table. The diagram has been compared with that published earlier by other authors. The study has produced substantial evidence corroborating the formation of two new chemical compounds that have not been found earlier.  相似文献   

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