摘要:
An intravenous infusion system combined with a venous pressure measuring instrument whereby the system is selectively capable of supplying fluid into the vein of a patient or of measuring his venous pressure without, however, exposing fluid in the system to the atmosphere and possible contamination. The instrument includes a transparent chamber interposed between an upstream line extending to the infusion fluid supply and a downstream line leading to the patient. A collapsible bulb disposed within the chamber is vented to the atmosphere, the bulb collapsing only when its internal pressure is less than external fluid pressure. In the infusion mode, supply fluid passing through the chamber is fed to the patient, the resultant fluid pressure in the chamber causing the normally-erect bulb to collapse. In the venous pressure mode, the upstream line is clampd to interrupt flow, the fluid pressure then exerted on the bulb being a function both of venous pressure and the height of the chamber relative to the heart, the higher the chamber the lower the pressure. By elevating or lowering the chamber to a point at which fluid pressure therein is equal to atmospheric pressure, a balance or reference pressure level is established, this level being indicated by the sudden erection or collapse of the bulb, depending on whether the bulb is moving upward or downward. Venous pressure is then determined by measuring the height of the chamber at this level along a scale formed on the downstream line.
摘要:
A lighting system for new construction and a method for installing a lighting system in a component construction system such as a concrete slab construction system are disclosed. Lighting units are built into the construction components to provide electrical power that may be low voltage electrical power used by LED light engines. The power can be used by temporary task lighting or the lighting units to be used in the finished building. The disclosure provides the lighting units, the lighting units combined with the construction elements, methods of making the combined unit and construction elements, and methods for using the lighting units.
摘要:
A battery pack including a support frame. The support frame includes a plurality of recesses for receiving a plurality of battery cells, a first vent, a second vent, a first peripheral support section, a second peripheral support section, and an air passage. The first vent is located on a first distal end of the support frame, the second vent is located on a second distal end of the support frame, and the air passage is located between the first vent and the second vent. The first and second peripheral support sections space apart and securely hold the plurality of battery cells within the battery pack.
摘要:
A method of forming and the resulting membrane composition for securement to a patient's bone or tissue to reduce the formation of tissue adhesions following a surgical procedure comprises a first component and a second component. The first component comprises a hydrogel including at least one crosslinked polymer. The second component comprises a textile component. The composition has a thickness between about two tenths of a millimeter (0.2 mm) to about six tenths of a millimeter (0.6 mm), a suture retention strength between about one Newton (1 N) to about thirteen Newtons (13 N), a static coefficient of friction between about one hundredth (0.01) and about one-half (0.5), a kinetic coefficient of friction between about one hundredth (0.01) and about one-half (0.5) and a flexibility of less than thirty millimeters (30 mm) bend length. A method of reducing the occurrence of tissue adhesions following surgery comprises applying the membrane composition to a surgical site.
摘要:
Article (e.g., turbine engine fan or compressor blade) comprising a titanium alloy has a first portion with alpha+beta microstructure and a second portion with martensitic or a bimodal microstructure. The modified microstructure of the second portion is provided by selectively heating, and immediately quenching, the second portion without substantially heating the first portion. An exemplary method includes providing a near net-shaped article having a first portion (e.g., an airfoil region) and a second portion (e.g., an unfinished dovetail region). Initially, the article comprises an alpha+beta microstructure throughout. Thereafter, the second portion is selectively heated, followed by immediate quenching, without substantially heating the first portion, to modify the microstructure of the second portion to a martensitic or bimodal microstructure without substantially modifying the microstructure of the first portion. Thereafter, the second portion may be processed to a final body dimension.
摘要:
Article (e.g., turbine engine fan or compressor blade) comprising a titanium alloy has a first portion with alpha+beta microstructure and a second portion with martensitic or a bimodal microstructure. The modified microstructure of the second portion is provided by selectively heating, and immediately quenching, the second portion without substantially heating the first portion. An exemplary method includes providing a near net-shaped article having a first portion (e.g., an airfoil region) and a second portion (e.g., an unfinished dovetail region). Initially, the article comprises an alpha+beta microstructure throughout. Thereafter, the second portion is selectively heated, followed by immediate quenching, without substantially heating the first portion, to modify the microstructure of the second portion to a martensitic or bimodal microstructure without substantially modifying the microstructure of the first portion. Thereafter, the second portion may be processed to a final body dimension.
摘要:
A method and system for communicating state information between a local device and a remote device across a transport network is disclosed. Each of the local and remote devices operate independently from one another and at least one of the devices is configured for one-way traffic protection. The method includes receiving a protection message comprising K-bytes from one of the local and remote devices at the other of the local and remote devices and determining based on the received K-bytes, if there is a change in state at one of the devices. If a change in state is detected, a message is sent indicating the change in state from one of the local and remote devices to the other of the local and remote devices.
摘要:
A fluid mixer is disclosed which alters or changes the operation of the automatic clamping mechanism for different sizes, shapes and styles of containers. Removable and replaceable bottom plates are used on the lower base. These bottom plates have indicia on the resting surfaces thereof which provides the user with a clear indication as to which type of container is used with each plate surface. Typically, both surfaces of the replaceable/reversible bottom plates are used for different styles of containers. The bottom plate provides an identification to a sensor associated with a lower base for communicating a signal to the controller. By selecting the appropriate bottom plate and installing it on the lower base, a signal is generated and sent to the controller indicative of the type of container loaded into the mixing apparatus. The controller retrieves an appropriate algorithm or routine from its memory and imposes the appropriate clamping force by way of an upper plate that is lowered down into clamping engagement with a container or containers. Thus, one mixer can be used for a variety of different types, styles and sizes of containers.
摘要:
Remote enclosure systems have now been designed that meet the following goals: a) consolidates electrical terminations in one system; b) pre-terminates AC and DC equipment loads before site installation; c) provides multiple access points for facilitating equipment repair and installation; d) is easily expanded through the use of additional systems or expansion cabinets and e) is aesthetically functional given the cable entry and routing structure. Remote enclosure systems generally comprise: a) a frame system further comprising at least two side panels; b) at least one door coupled to the frame system; c) at least one removable radiofrequency (RF) port plate coupled to at least one of the side panels and/or the frame system; d) a bottom panel coupled to the frame system; and e) a cable management top assembly coupled to the frame system.
摘要:
Remote enclosure systems have now been designed that meet the following goals: a) consolidate electrical terminations in one system; b) pre-terminate AC and DC equipment loads before site installation; c) provide multiple access points for facilitating equipment repair and installation; d) are easily configurable and expanded through the use of a modular frame design that accommodates a variety of customized side panels or the attachment of a variety of expansion cabinets; e) are aesthetically functional given the cable entry and routing structure; f) provide exceptional thermal management and g) reduce problems inherent in conventional electronic setups. Remote enclosure systems contemplated generally include: a) a frame system further comprising at least two side panels; b) at least one door coupled to the frame system; c) a cable management top assembly coupled to the frame system; d) at least one removable radio frequency (RF) management system.