using qcd factorization for the hadronic matrix elements, we show that existing data, inparticular the branching ratios br ( b →j/ψk) and br ( b →j/ψπ), can be accounted for in this approach.we analyze the decay b j /k( ) within the framework of qcd factorization. the calculation of therelevant hard-scattering kernels for twist-2 and twist-3 is completed. we calculate this decay in a special...

die direktreduktion von eisenerzen zu eisenschwamm mittels erdgas wird iiberall dort verwendet wo einmal die notwendtigen rohstoffe und besonders der metallurgische koks zu wirtschaftlischen bedingungen fehlen. andereseirs wiederum miissen erdgasrerven in geniigenden mengen und qualitat zu verfugung stehen, urn die direktredution mit gutem wirkungsgrad durchfuhren zu konnen. in dieser arbeit wi...

Vortex extrusion (VE) is a severe plastic deformation technique which is based on the synergies between high strain accumulation and high hydrostatic pressure. Such a high amount of pressure, places a mandate to seek the method for investigation of the load under processing conditions. For this, kinematically admissible velocity field and upper bound terms based on Bezier formulation are develo...

Nach dem kurzen Bericht ueber die Geschichte van Tetanus; haben wir in diesern Artikel ver­sucht,ueber die Epedirniologie, Pathophisiolo­gie,Aethiologie und die Frueh-und Spaet-Symp­ptome von dieser gcfahrlichen Krankheit,die einen Durchschnitt von 35% Mortalitaet hat,zu berichten.  In disern Artikel legen wir vi.ei wert,besoaders ueber die The·.rapie 1md der Prophyla.xe. Unc:I wii' hal)en bed...

der folgende text, der unter der betreuung von herrn dr. touraj rahnema entstanden ist, erw?hnt zuerst kurz die bestimmenden züge der literarischen schule, die im europ?ischen kulturraum allgemein als romantik verstanden wird, will aber darüber hinaus die romantik als eine art lebenshaltung und kunstverst?ndnis begreifen, die unabh?ngig von einer bestimmten kunstperiode genauso auch in ?stliche...

In the present work an attempt has been made to study the effect of the twisted tapes as bed internals, on the performance of the gas-solid fluidized beds. Experimental investigation has been carried out in cylindrical column with and without twisted tapes. Twelve numbers of twisted tapes of three different widths with four values of the twist ratios for each width were studied at different...

Background: The aim of the present study was to evaluate how left ventricular twist and torsion are associated with sex between sex groups of the same age.Materials and Methods: In this analytical study, twenty one healthy subjects were scanned in left ventricle basal and apical short axis views to run the block matching algorithm; instantaneous changes in the base and apex rotation angel...

Drawing of square section rod from round bar can be done with two die shapes. In the first die shape, deformation starts from corners of the square and in second die shape, deformation starts from sides of square. This article has compared the drawing force for both die shapes and as a result optimum die shape was determined. Due to complexity of metal flow inside the die, analyzing of actual p...