Die Einhaltung der gesetzlichen Abstrahlungsgrenzwerte z.B. nach EN55011 für ISM Geräte oder CISPR 25 für Automobilkomponenten wird oft erst am Ende der Geräteentwicklung auf einem Freifeld oder in einer Absorberkammer überprüft. Dabei wird eine integrale Messung des gesamten Systems durchgeführt, wobei die Zuordnung auf lokale Schwachpunkte des Elektroniksystems in der Regel nicht möglich ist....

Background: Acute poisoning has been reported to be the most common reason for hospitalization in Iran. This study was designed to delineate the toxic agents responsible for acute poisonings in Iran by reviewing poisoning cases treated at four major referral hospitals for treatment of poisoning across the country. Methods: This was a descriptive retrospective study on poisoned patients treated...

In diesem Artikel wird eine nichtlineare Zustandsrückführung für Regelstrecken mit linearer Dynamik und einer Stellgrößenbeschränkung vorgestellt. Die Methode ermöglicht sehr schnelle Regelvorgänge. Erreicht wird dies durch die Verknüpfung sättigender und weicher strukturvariabler Regler. Es wird ein effizientes, LMI-basiertes Entwurfsverfahren zur Bestimmung der Reglerparameter vorgestellt. Be...

Substituted imidazolinones containing heterocyclic carboxylic acids as substituents and possessing herbicidal properties were synthesized by cyclization of 2-amino-2,3-dimethylbutyramide with heterocyclic ethyl dicarboxylates under mild conditions. The use of NaH as base leads to a significant increase in the reaction rate and allows the preparation of the target compounds in high yields.

A practical method for radical chain reduction of various aryl bromides and chlorides is introduced. The thermal process uses NaH and 1,4-dioxane as reagents and 1,10-phenanthroline as an initiator. Hydrodehalogenation can be combined with typical cyclization reactions, proving the nature of the radical mechanism. These chain reactions proceed by electron catalysis. DFT calculations and mechani...

Nearfield acoustical holography (NAH) is used to find the regions of acoustic activity on the surface of a sound radiating object. One of the most general NAH approaches is the inverse frequency response function (IFRF) technique, since it imposes no limitations on the geometry of the radiating boundary. In the IFRF method acoustic measurements on a grid in the nearfield of the object are used ...

Mycobacteria are an important cause of morbidity in humans. Rapid and accurate mycobacterial identification is important for improving patient outcomes. However, identification of Mycobacterium species is not easy, due to the slow and fastidious growth of mycobacteria. Recently, biochemical, sequencing, and probing methods have come to be used for identification. This study compared the perform...

The study examined the effect of modern payment platforms on financial service accessibility in Nigeria: a rural banking model. Specifically, this effects Automated Teller Machines-ATM operations, Mobile Banking operations-MOB, Internet Banking-INB and Point Sale-POS operations Number Account Holders-NAH Nigeria. spanned from 2009 to 2021. adopted robust least square estimate. Meanwhile, source...

Nah-Oak Song 1, Ji-Hye Lee 2 and Hak-Man Kim 2,* 1 Center for Collaborative Internet Ecosystems Research Center, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Korea; [email protected] 2 Department of Electrical Engineering, Incheon National University, 12-1 Songdo-dong, Yeonsu-gu, Incheon 406-840, Korea; [email protected] * Correspondence: hmki...

In the presence of strong bases (NaH, DBU, KOH), ethyl 4-chloromethyl-6-methyl-2-oxo1,2,3,4-tetrahydropyrimidine-5-carboxylate and 4-mesyloxymethyl-6-methyl-5-tosyl-1,2,3,4tetrahydropyrimidin-2-one are transformed into novel tricyclic compounds, diethyl 9-methyl-5methylene-3,11-dioxo-2,3,4,5,6a,7,10,11-octahydro-1,6-methano[1,3]diazepino[1,7-e][1,3,5]triazocine-6,8(1H)-dicarboxylate and 9-methy...