Superconductors with crystalline-field-split impurities: Tunneling density of states

We compute the tunneling density of states for superconductors containing rare earth impurities with crystal-field-split energy levels. It is shown in detail how the different energy levels show up in the density of states. For the case of a singlet ground state it is demonstrated that the density of states curve is of the BCS type instead of the broadened Abrikosov—Gorkov type even if the pair-breaking effect of the impurities is strong enough to lower the superconducting transition temperature considerably. We have also calculated the tunneling conductance in order to facilitate a comparison between theory and possible experiments.     

Zur Wärmeabfuhr synthetischer Walzemulsionen

Kraftbedarf, Druckaufnahmevermögen und Wärmeableitung beim Walzen mit. üblichen Walzölen und synthetischen, wasserlöslichen Schmiermitteln.     

On the complementation rule for multivalued dependencies in database relations

Summary We study the interrelation between various versions of the complementation rule and other inference rules for multivalued dependencies in database relations. In particular we settle two open questions of [1] concerning the derivability of inference rules for Boolean operations on the right side of multivalued dependencies. Furthermore we prove that there is a trade-off between the complementation rule and the augmentation rule.     

Wärmebehandlung von Stahl nach Kaltumformung

Zusammenhang zwischen Beanspruchungsbedingungen und Spannungsarmglühung nach Kaltumformung. Einfluß von Kaltumformgrad, Betriebstemperatur und Erzeugnisdicke auf das Sprödbruchverhalten. Merkmale zur Abgrenzung der Notwendigkeit des Spannungsarmglühens.     

Effect of strength training on EMG of human skeletal muscle

An 8-year-old white girl with a history of vertigo, nausea, and vomiting developed a progressive hearing loss, bilateral retinal arteriolar narrowing in each eye, vasoproliferation, and subsequent intravitreal hemorrhage. An attempt at peripheral retinal ablation with cryotherapy in the left eye resulted in retinal detachment. Spontaneous retinal detachment occurred in the right eye and was successfully repaired. Repeated intermittent hemorrhages occurred despite intraocular diathermy. Three years after onset, visual acuity was R.E.: 6/21 (20/66) and L.E.: light perception. She remains totally deaf. A 20-year-old white woman developed severe bilateral sensorineural hearing loss with poorly functioning labyrinths, followed by midperipheral retinal arteriolar occlusions and vasoproliferation on the optic nerve head. Progressive retinal neovascularization was followed by rubeosis iridis and repeated episodes of intravitreal bleeding. Six years after onset, visula acuity was R.E.: hand motions, and L.E.: 6/3 (20/100). She remains totally deaf. Both patients were of normal gestation, development, and mentality, without evidence of other systemic disease. The cause of this disease was not found.