102results about How to "Prevent and inhibit" patented technology

An active material electronic device is described with a containment layer. The device includes an active chalcogenide, pnictide, or phase-change material in electrical communication with an upper and lower electrode. The device includes a containment layer formed over the active material that prevents escape of volatilized matter from the active material when the device is exposed to high temperatures during fabrication or operation. The containment layer further prevents chemical contamination of the active material by protecting it from reactive species in the processing or ambient environment. The containment layer and intermediate layers formed between the active material and containment layer are formed at temperatures sufficiently low to prevent volatilization of the active material. Once the containment layer is formed, the device may be subjected to high temperature or chemically aggressive environments without impairing the compositional or structural integrity of the active material. Inclusion of the containment layer is shown to extend the cycle life of the device by over two orders of magnitude.

The invention relates to a microfluidic device including a chamber having a fluid inlet, a fluid outlet and a sealable port. In some embodiments, the fluid inlet and the fluid outlet may be positioned to direct fluid flowing from the fluid inlet to the fluid outlet through the chamber. Various embodiments may include a sealable port which may be aligned with the chamber to allow material to be placed directly into, or removed from, the chamber from the exterior of the device when the sealable port is open, and to inhibit and / or prevent fluid escaping through the sealable port when the port is sealed.

An organically complexed nanocatalyst composition is applied to or mixed with coal prior to or upon introducing the coal into a coal burner in order to catalyze the removal of coal nitrogen from the coal and its conversion into nitrogen gas prior to combustion of the coal. This process leads to reduced NOx production during coal combustion. The nanocatalyst compositions include a nanoparticle catalyst that is made using a dispersing agent that can bond with the catalyst atoms. The dispersing agent forms stable, dispersed, nano-sized catalyst particles. The catalyst composition can be formed as a stable suspension to facilitate storage, transportation and application of the catalyst nanoparticles to a coal material. The catalyst composition can be applied before or after pulverizing the coal material or it may be injected directly into the coal burner together with pulverized coal.

The invention relates to a microfluidic device including a chamber having a fluid inlet, a fluid outlet and a sealable port. In some embodiments, the fluid inlet and the fluid outlet may be positioned to direct fluid flowing from the fluid inlet to the fluid outlet through the chamber. Various embodiments may include a sealable port which may be aligned with the chamber to allow material to be placed directly into, or removed from, the chamber from the exterior of the device when the sealable port is open, and to inhibit and / or prevent fluid escaping through the sealable port when the port is sealed.

A printer apparatus and a method for continuously printing a three-dimensional (3D) object. The printer apparatus has an elongated container for containing build fluid comprising a monomer from which the 3D object is made. A means for continuous conveying a build platform has a build surface that descending down into the build fluid. A matrix of light emitting elements are disposed above the elongated container, and emit a predetermined pattern of a reactive light toward the continuously conveyed build surface and at the upper surface of the build fluid. The reactive light has a predetermined pattern that polymerizes and / or agglomerates a portion of the upper surface of the build fluid into a build material having a build pattern comprising the build material. The build platform can have a plurality of build surface segments attached in series along a continuous conveyor.

A receptacle securing device designed to at least partially secure a receptacle in a generally static position during manipulation of contents in the receptacle. The receptacle securing device includes a base member that is designed to receive a bottom of a receptacle, at least one pressure pad that is designed to receive user generated pressure, and a plurality of arm members that are connected to the base member. At least one of the arm members is designed to pivot toward and grippingly engage the receptacle when the receptacle is positioned on the receptacle securing device. The receptacle securing device can be designed to be foldable upon itself to facilitate its shipping and transport by minimizing its size profile.

A gripper for use in a downhole tool is provided. The gripper can include an actuator, an engagement assembly, and an expandable assembly. The engagement assembly can comprise a leaf-spring like elongate continuous beam. The expandable assembly can comprise a linkage including a plurality of links. The linkage can be coupled to the actuator such that the actuator expands the expandable assembly which in turn expands the engagement assembly. One or more keyed connections can inhibit rotational misalignment of the expandable assembly from the engagement assembly. In operation, during one stage of expansion radial forces are transmitted to the engagement assembly through both interaction of a rolling mechanism on the engagement assembly with the expandable assembly and pressure of the linkage assembly directly on an inner surface of the engagement assembly. The one or more keyed connections can preferably facilitate full retraction of the expandable and engagement assemblies.

Compositions and methods for generating platelets and methods of use thereof are disclosed.