摘要:
Disclosed are dispersed graphene sheets, ribbons, graphene molecules and the like which are pristine in the plane, i.e., free of significant defects and chemical modifications such as oxidation. The materials could be functionalized at the edges. These materials are dispersed in solutions rather than in aggregated or insoluble forms as their parent starting materials. Also disclosed is a method comprising the steps of intercalating an insoluble graphitic material. The method may comprise exfoliating graphite and re-intercalating the resultant material with an acid composition, such as oleum, and a strong organic base such as tetrabutylammonium hydroxide in a solvent solution to form a homogenous suspension, which is then agitated to form dispersed graphene materials. The materials may be solubilized with a hydrophilic polymer and can be further manipulated by transfer into different solvents, formation of films, application to optical and electronic devices, and other applications. The materials are solubilized by functional groups mostly at the edges.
摘要:
A tension meter of an anchor rod with constant resistance and large deformation comprises a pull rod and a hollow jack (13). The meter further includes: a rotation device for controlling the rotation angle of the hollow jack (3); a lifter for adjusting the height of the hollow jack (13) and the rotation device; a first hydraulic pump (1) for driving the hollow jack (13), wherein the hollow jack (13) is fixed on the rotation device mounted on the lifter. The meter has a large measurement range and a high load capacity.
摘要:
A technique synchronizes data retrieved from memory devices at a memory controller of a high-speed memory subsystem. Each memory device is organized into a plurality of data groupings. The memory controller stores (via one or more write operations) a known synchronization (sync) pattern at each data grouping on the memory devices and then retrieves (via one or more read operations) that sync pattern from the groupings. Synchronization logic located at a local clock boundary of the memory controller is configured to recognize the retrieved sync pattern and “automatically” synchronize all pieces of data retrieved from the data groupings, even though there may be substantial skew between the groupings.
摘要:
A tension meter of an anchor rod with constant resistance and large deformation comprises a pull rod and a hollow jack. The meter further includes: a rotation device for controlling the rotation angle of the hollow jack; a lifter for adjusting the height of the hollow jack and the rotation device; a first hydraulic pump for driving the hollow jack, wherein the hollow jack is fixed on the rotation device mounted on the lifter. The meter has a large measurement range and a high load capacity.
摘要:
The present invention relates to a liquid treatment module, which comprises power distribution panels, electrode plates and a framework with side plates. The two power distribution panels are fixed on the two side plates. The power distribution panels have electrode plates located on inner side of the panels. There are two or more double-sided electrode plates placed in stacks between the two distribution panels which are connected to the DC power supply through the electric wires. There are separators placed between the adjacent electrode plates to provide the flow channels. Each flow channel is connected with the inlet and outlet holes on the side plates. The exposed surface of the power distribution panels, double-sided electrode plates and the separators are bonded and sealed by the insulating package. This invention has characteristics of simple structure, large liquid handling capacity, high efficiency, and can be used to process liquids of various kinds including water, wine, fruit juices, beverages, dairy products and chemical wastes from various sources for impurities removal.
摘要:
The disclosed subject matter models or predicts a user's intention during network or WWW navigation. Specifically, a statistical multi-step n-gram probability model is used to predict a user's optimal information goal. The optimal information goal is based on a sequence of previously visited network content pieces and a globally optimized navigation path through the sequence.
摘要:
The present invention relates to a liquid treatment module, which comprises power distribution panels, electrode plates and a framework with side plates. The two power distribution panels are fixed on the two side plates. The power distribution panels have electrode plates located on inner side of the panels. There are two or more double-sided electrode plates placed in stacks between the two distribution panels which are connected to the DC power supply through the electric wires. There are separators placed between the adjacent electrode plates to provide the flow channels. Each flow channel is connected with the inlet and outlet holes on the side plates. The exposed surface of the power distribution panels, double-sided electrode plates and the separators are bonded and sealed by the insulating package. This invention has characteristics of simple structure, large liquid handling capacity, high efficiency, and can be used to process liquids of various kinds including water, wine, fruit juices, beverages, dairy products and chemical wastes from various sources for impurities removal.
摘要:
Disclosed are dispersed graphene sheets, ribbons, graphene molecules and the like which are pristine in the plane, i.e., free of significant defects and chemical modifications such as oxidation. The materials could be functionalized at the edges. These materials are dispersed in solutions rather than in aggregated or insoluble forms as their parent starting materials. Also disclosed is a method comprising the steps of intercalating an insoluble graphitic material. The method may comprise exfoliating graphite and re-intercalating the resultant material with an acid composition, such as oleum, and a strong organic base such as tetrabutylammonium hydroxide in a solvent solution to form a homogenous suspension, which is then agitated to form dispersed graphene materials. The materials may be solubilized with a hydrophilic polymer and can be further manipulated by transfer into different solvents, formation of films, application to optical and electronic devices, and other applications. The materials are solubilized by functional groups mostly at the edges.
摘要:
Disclosed are nanoparticles, such as carbon nanotubes or other materials having extended aromatic surfaces (e.g., graphene sheet or nanotube), which are used to deliver active agents such as drugs, labels or dyes (termed for convenience a “drug”) to the interior of cells. The nanoparticles are functionalized by a hydrophilic polymer to render them stable in suspension. This molecule may be covalently attached to the nanoparticle, or may be adsorbed thereto as an amphiphilic molecule. The nanoparticles are coupled to the drug through supramolecular bonding i.e., binding to the exterior of the nanoparticle through π-stacking. The drug may also be covalently bonded to the hydrophilic polymer, which is coupled to the nanoparticle through supramolecular bonding. The drug is therefore capable of release in the cell exterior. The drug is more rapidly released at lower pH, as found e.g., in tumor cells. The drug-coupled, functionalized nanoparticles may also be targeted to specific cells through modification of the hydrophilic polymer, e.g., by adding an RGD peptide, or an antibody, which is targeted to cells expressing integrins, or an antibody directed to a cell surface marker. The drug may also be linked to a branched chain hydrophilic polymer, so that each polymer molecule carries more than one drug bound by a cleavable linker.
摘要:
One aspect relates to clustering a group of objects of a first object type based on a relative importance using links extending between objects of the first object type and certain objects of the second object type. In one embodiment, the first object type is a Web page object type and the second type is a user object type.