Special Purpose Timer to Aid in Closed Circuit Anesthesia Delivery

Closed circuit anesthesia systems offer certain advantages over other techniques, but require that gas administration closely foliow the uptake by the body, which is proportional to the square root of time. We have developed a timer which automatically signals the anesthesiologist to readjust the gas flow at selected intervals to provide a stepwise approximation to the square root of time curve. Two additional nonsignaling timers are included to permit timing of total elapsed anesthesia time and a third event.     

Federnin der Feinwerktechnik und ihre Werkstoffe Übersicht

Springs in precision mechanics and their materials. Springs of different types are important components for mechanical and electronic instruments. The properties required of the material follow as a result of the different problems for which the springs are designed. After a short classification of the field of task and uses the properties, their importance for function of the spring and the possibilities of testing are described. A Summary of materials for springs today in use is presented.     

Determiners and consequences of verbal behaviors of young children and their mothers.

Explored the dynamic aspects of maternal language instruction and first language learning. 10 boys and 10 girls between 1 and 5 yrs of age were observed with their mothers in their middle-class homes. 11 types of motivating techniques and 5 types of instructional activities could be reliably differentiated. The frequencies of motivating techniques remained unchanged with the child's increasing age and language level, whereas the frequencies of the mother's instructional activities declined significantly. Meaningful intercorrelations of the motivating techniques attested to the mutual adaptation of mothers and children. Significant intercorrelations of the types of contents taught suggested maternal teaching styles. Motivating techniques and contents of instructions were only weakly related, indicating that instructional strategies can be combined rather flexibly. (37 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Die moderne Furniererzeugung

Summary Veneer transportation systems, e.g., tray-decks, reeling- and unreeling-devices, various veneer-driers, veneer clippers with sorting and stacking devices as well as veneer-jointers are reported on. All this equipment aims at an increase of the capacity, above all when installed in a production line, and at the same time to reduce man power.

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Die moderne Furniererzeugung Teil 2: Furniertransport, Trockner und Scheren

Zusammenfassung Es werden Furniertransportanlagen wie Tray-Deck-Systeme, Auf- und Abwickelanlagen, verschiedene Trockner sowie Furnierscheren mit Sortier- und Abstapeleinrichtungen und Furnierfügemaschinen besprochen. Alle diese Einrichtungen zielen darauf ab, die Leistung, vor allem innerhalb einer Sch?lstra?e bei gleichzeitig verringertem Personalbedarf zu erh?hen.