Results 81 to 90 of about 72,535 (264)
Ceramic regenerator systems development program [PDF]
Ceramic regenerator cores are considered that can be used in passenger car gas turbine engines, Stirling engines, and industrial/truck gas turbine engines.
Cook, J. A. +3 more
core +4 more sources
Vacuum probe surface sampler [PDF]
, 1973 A vacuum probe surface sampler is described for rapidly sampling relatively large surface areas which possess relatively light loading densities of micro-organism, drug particles or the like.
Zahlava, B. A.
core +1 more source
Wildlife Biology, EarlyView.Supplementary feeding for declining hedgehog Erinaceus europaeus populations is popular in Great Britain and has been suggested as an important factor in explaining higher densities in urban areas compared with rural ones. Occupancy modelling was used to test whether spatial variation in supplementary feeding, natural food, habitat, or predator ...
Eleanor S. Benjamin +6 more
wiley +1 more source
Case Studies in Thermal EngineeringIncreasing engine power outputs have raised exhaust gas temperatures, intensifying thermal stresses on turbine systems and compromising bearing reliability through accelerated seal ring degradation and oil coking.
Chao Ma +3 more
doaj +1 more source
Performance of Rim-Seals in Upstream and Downstream Cavities over a Range of Flow Coefficients
International Journal of Turbomachinery, Propulsion and Power, 2017 This paper presents measurements of CO2 concentration and pressure in a new, highly instrumented and versatile, 1.5-stage gas turbine facility. The rig, which has been specifically designed for investigations related to hot gas ingestion, features ...
Marios Patinios +3 more
doaj +1 more source
Symmetries in Images on Ancient Seals [PDF]
, 2009 We discuss the presence of symmetries in images engraved on ancient seals, in particular on stamp seals. Used to stamp decorations, to secure the containers from tampering and for owner's identification, we can find seals that can be dated from Neolithic
Sparavigna, Amelia Carolina
core +1 more source
Transactions of the Philological Society, EarlyView.Abstract Based on an analysis of the Old Literary Tibetan corpus—a corpus of the oldest documented Tibetic language—the present study provides evidence that literary Tibetan v3 verb stems (commonly termed ‘future’) initially encoded passive voice. New arguments put forward in this article range from Trans‐Himalayan nominal morphology to early Tibetan ...
Joanna Bialek
wiley +1 more source
Outcomes of arthroscopic
Journal of Orthopaedic Surgery and Research, 2011 Background A Hill-Sachs lesion of the humeral head after a shoulder dislocation is clinically insignificant in most cases. However, a sizable defect will engage with the anterior rim of the glenoid and cause instability even after anterior glenoid ...
Mayo Lee, Haviv Barak, Biggs Daniel
doaj +1 more source
Optimization of Turbine Rim Seals [PDF]
Experiments are being conducted to gain an understanding of the physics of rim scale cavity ingestion in a turbine stage with the high-work, single-stage characteristics envisioned for Advanced Subsonic Transport (AST) aircraft gas turbine engines fo the
Sabnis, J. S. +3 more
core +1 more source