Development of Solid-Type Diamond Rotary Dresser Utilizing CVD Diamond Disc - Application to Low-Speed Dresser -

2007 ◽  
pp. 187-194 ◽  
Author(s):  
Akihiko Kubo ◽  
Junichi Tamaki
Keyword(s):  
Cvd Diamond ◽  
Low Speed ◽  
Diamond Disc ◽  
Solid Type

Development of Solid-Type Diamond Rotary Dresser Utilizing CVD Diamond Disc - Application to Low-Speed Dresser -

2007 ◽  
Vol 329 ◽  
pp. 187-194 ◽  
Author(s):  
Akihiko Kubo ◽  
Junichi Tamaki
Keyword(s):  
Cvd Diamond ◽  
Diamond Wheel ◽  
Grinding Wheel ◽  
Wheel Surface ◽  
Low Speed ◽  
Grinding Conditions ◽  
Diamond Disc ◽  
Vitrified Cbn ◽  
Solid Type ◽  
Discrete Type

A solid-type diamond rotary dresser consisting of a CVD diamond disc is developed and applied to the dressing of a vitrified CBN grinding quill for internal grinding. This dresser has a feature not found in the other discrete-type rotary dressers used thus far, in which it continuously contacts the grinding wheel and leaves a spiral on the grinding wheel surface. The solid-type diamond rotary dresser was mounted on a low-speed spindle supported by journal bearings, and its dressing performance was compared with those of two discrete-type rotary diamond dressers: a dressing roll on which surface single diamond grains are brazed and a dressing roll made of a metal-bonded diamond wheel. It is found that the solid-type diamond rotary dresser tends to bring about rough grinding conditions among the three dressers.

New ultrastructural findings about Borrelia burgdorferi by cryofixation, negative staining, thin sectioning and scanning techniques

1990 ◽  
Vol 48 (3) ◽  
pp. 582-583
Author(s):  
S. F. Hayes ◽  
M. D. Corwin ◽  
T. G. Schwan ◽  
D. W. Dorward ◽  
W. Burgdorfer
Keyword(s):  
Lyme Disease ◽  
Borrelia Burgdorferi ◽  
Structural Characterization ◽  
Negative Staining ◽  
Low Speed ◽  
Thin Sectioning ◽  
Ultrastructural Findings

Characterization of Borrelia burgdorferi strains by means of negative staining EM has become an integral part of many studies related to the biology of the Lyme disease organism. However, relying solely upon negative staining to compare new isolates with prototype B31 or other borreliae is often unsatisfactory. To obtain more satisfactory results, we have relied upon a correlative approach encompassing a variety EM techniques, i.e., scanning for topographical features and cryotomy, negative staining and thin sectioning to provide a more complete structural characterization of B. burgdorferi.For characterization, isolates of B. burgdorferi were cultured in BSK II media from which they were removed by low speed centrifugation. The sedimented borrelia were carefully resuspended in stabilizing buffer so as to preserve their features for scanning and negative staining. Alternatively, others were prepared for conventional thin sectioning and for cryotomy using modified procedures. For thin sectioning, the fixative described by Ito, et al.

Reopening of Chronic Coronary Occlusions by Low-Speed Rotational Angioplasty

1994 ◽  
Vol 12 (4) ◽  
pp. 623-629 ◽  
Author(s):  
Andreas Hartmann ◽  
Martin Kaltenbach
Keyword(s):  
Low Speed

Study of Low-Speed Sensorless Control of SPMSM by Controlling the Elliptical Inductance

2014 ◽  
Vol 134 (1) ◽  
pp. 106-114
Author(s):  
Sari Maekawa ◽  
Toshifumi Hinata ◽  
Nobuyuki Suzuki ◽  
Hisao Kubota
Keyword(s):  
Sensorless Control ◽  
Speed Sensorless ◽  
Low Speed
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