An Apparatus Is Used With A Drilling Assembly For Drilling A Borehole. The Drilling Assembly Has An Impact Device Linked To A Drill Head. The Impact Device Is Powered By A First Fluid Under A First Pressure To Impart A Percussive Force To The Drill Head. The Percussive Force Is A Function Of The Fir.....
[Detail]
A Single Focus Telescopic Lens Includes, In Order From The Object Side: A Diaphragm Stop; And First And Second Lens Components, Each Lens Component Being Of Positive Refractive Power And Each Having A Convex Surface On The Object Side Near The Optical Axis. Each Of The Two Lens Components Has Two As.....
[Detail]
This invention provides a class of organometallic complexes comprising a tridentate isoquinoline-pyridine-benzene based ligand, a mono-dentate ligand and a platinum (II) center which show high emission quantum efficiency and good thermal stability. This invention also discloses organometallic comple.....
[Detail]
| |< <- | [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] | -> >| |
