摘要:
This invention relates to devices for discharging high pressure exhaust, and in particular to pulse detonation engines. More specifically, the invention describes a rotary pulse detonation engine having a rotary valve system. The rotary valve includes a generally-triangular rotor having rotor tips within a rotor chamber having trochoid inner end surfaces and side surfaces. The rotor defines three working chambers defined by the rotor tips contacting the rotor surfaces. In operation, the rotor tips move in a circumferential direction around the rotor chamber as the rotor spins. During operation, each of the working chambers will sequentially pass through an intake interval, compression interval, expansion interval, and an exhaust interval to create and detonate compressed fuel air mixtures for effective release to an exhaust chamber and nozzle thereby creating a pulsed detonation sequence.
摘要:
Designs and uses for hydrophobic screens in shaker systems used to separate drilling fluids from drill cuttings during drill operations are described. More specifically, the design and use of hydrophobic, highly-hydrophobic and super-hydrophobic screens with drilling fluid shaker systems to improve the ability of oil-based drilling fluids to pass through the screens while decreasing the ability of water to pass through the screens are described.
摘要:
A modulation assembly comprises a fibre (1) having a drawn tapered portion (2), and means (4, 5, 6, 7) for applying a perturbation to the tapered portion to vary the percentage transmission through the fibre.
摘要:
The invention describes separation systems and methods for separating solids and liquids from one another. The system includes a rotating screen for supporting a slurry of solids and liquid. A fluid manifold is configured to the lower surface of the screen for applying a downward vacuum force through the screen. A cleaning manifold is configured to the screen for cleaning the screen.
摘要:
The present invention relates to protector apparatus (30) for protecting at least one cable (24) during operation of a diverter (28). The protector apparatus (30) comprises at least one protector assembly substantially formed of a plastics material. The protector assembly defines a plurality of bores, a first of the plurality of bores being configured to receive a string (23) and a second of the plurality of bores being configured to receive a cable (24). The protector assembly is further configured to define an external surface with which an operating diverter engages when the protector apparatus is in use and a string is received in the first bore.
摘要:
Devices for producing high resolution photographic images of a scene (4) from assembled or mosaiced color values extracted from pixels of the scene (4) reflected by a micromirror array (3) to a photographic imaging system (2) are provided.
摘要:
The invention relates to improvements in vacuum shakers and more specifically to the integration of multiple shaker units to a common vacuum pump system, to apparatus for controlling the airflow through shaker screens, optimization of slurry transport, and to methods of separating drilling fluid from drill cuttings.
摘要:
Methods of diagnosis of susceptibility to Parkinson's disease; assays for agents that alter the activity of a Parkinson's disease polypeptide, (e.g., PARK8 polypeptide) or which identify PARK8 binding agents, and the agents or binding agents identified by the assays; PARK8 therapeutic agents, including the PARK8 nucleic acids, PARK8 polypeptides, or agents that alter the activity of an PARK8 polypeptides; pharmaceutical compositions comprising the PARK8 therapeutic agents; as well as methods of therapy of Parkinson' s disease are disclosed.
摘要:
Devices for producing high resolution photographic images of a scene from assembled or mosaiced color values extracted from pixels of the scene reflected by a micromirror array to a photographic imaging system are provided.
摘要:
Methods of diagnosis of susceptibility to Parkinson's disease; assays for agents that alter the activity of a Parkinson's disease polypeptide, (e.g., PARK8 polypeptide) or which identify PARK8 binding agents, and the agents or binding agents identified by the assays; PARK8 therapeutic agents, including the PARK8 nucleic acids, PARK8 polypeptides, or agents that alter the activity of an PARK8 polypeptides; pharmaceutical compositions comprising the PARK8 therapeutic agents; as well as methods of therapy of Parkinson' s disease are disclosed.