69results about How to "Reduce Potential Contamination" patented technology

Synthetic surfaces capable of supporting culture of undifferentiated human embryonic stem cells in a chemically defined medium include a swellable (meth)acrylate layer and a peptide conjugated to the swellable (meth)acrylate layer. The swellable (meth)acrylate layer may be formed by polymerizing monomers in a composition that includes hydroxyethyl methacrylate, 2-carboxyehylacrylate, and tetra(ethylene glycol) dimethacrylate. The conjugated peptide may include an amino acid sequence of XaanProGlnValThrArgGlyAspValPheThrMetPro, where n is an integer from 0 to 3 and where Xaa is any amino acid. Further, disclosed herein is a swellable (meth)acrylate synthetic surface which can be sterilized by gamma irradiation.

A method for reducing vulnerability of a computer network to a detected virus threat includes receiving an identifier of a network device detected as a source of virus activity. The method also includes relating the identifier to a predetermined account of the detected device and then automatically disabling the device account. Accordingly, the detected device is isolated from the network to prevent infection of the network by the detected device.

The present invention is directed to sample test cards having an increased sample well capacity for analyzing biological or other test samples. In one embodiment, the sample test cards of the present invention comprise one or more fluid over-flow reservoirs, wherein the over-flow reservoirs are operatively connected to a distribution channel by a fluid over-flow channel. In another embodiment, the sample test cards may comprise a plurality of flow reservoirs operable to trap air thereby reducing and / or preventing well-to-well contamination. The test card of this invention may comprise from 80 to 140 individual sample wells, for example, in a test card sample test cards of the present invention have a generally rectangular shape sample test card having dimensions of from about 90 to about 95 mm in width, from about 55 to about 60 mm in height and from about 4 to about 5 mm in thickness.

Synthetic surfaces capable of supporting culture of eukaryotic cells including stem cells and undifferentiated human embryonic stem cells in a chemically defined medium include a swellable (meth)acrylate layer and a polypeptide conjugated to the swellable (meth)acrylate layer. The swellable (meth)acrylate layer may be formed by polymerizing monomers in a composition that includes a carboxyl group-containing (meth)acrylate monomer, a cross-linking (di- or higher-functional) (meth)acrylate monomer, and a hydrophilic monomer capable of polymerizing with the carboxyl group-containing (meth)acrylate monomer and the cross-linking (meth)acrylate monomer. The swellable (meth)acrylate layer has an equilibrium water content in water of between about 5% and about 70%. The conjugated peptide may include an RGD amino acid sequence.

Synthetic surfaces suitable for culturing stem cell derived cardiomyocytes contain acrylate polymers formed from one or more acrylate monomers. The acrylate surfaces, in many cases, are suitable for culturing stem cell derived cardiomyocytes in chemically defined media.

Synthetic surfaces suitable for culturing stem cell derived oligodendrocyte progenitor cells contain acrylate polymers formed from one or more acrylate monomers. The acrylate surfaces, in many cases, are suitable for culturing stem cell derived oligodendrocyte progenitor cells in chemically defined media.

The present invention provides a composition of hydraulic fluid that mainly contains alkyl benzenes. In addition to alkyl benzenes, the composition also contains an antioxidant, an antifoaming agent, a pour point dispersant, a corrosion inhibitor and a detergent-dispersant additive, an extreme pressure additive, a lubrication additives, comprising of the following steps (I) removing of insoluble matter from the base stock, (II) tailoring the base stock by vacuum distillation and blending, (IV) removing the oxidized matters by adsorption, (V) addition of performance additives and homogenizing the mixture. The product of this invention has utility as an general purpose hydraulic fluid.

The present invention relates to a structure and a container for culturing cells. In one arrangement, the structure (200) comprises a partially enclosed cavity (204) and a plurality of compartments (201) adapted for fluid communication with the partially enclosed cavity (204). Each compartment (201) is configured to hold one or more cell within its compartment (201) at a location dependent on a dimension of the cell. This arrangement may facilitate visual identification or indication of the size of the cell by observing its location within its compartment (201). The structure (200) may be included or formed integrally with a container (100) such as a Petri dish.

A laminated flat mop head which includes a flat foam layer laminated with a fabric material without using glue or adhesive.

The invention is a method of producing green controlled release multi-nutrient fertilizer, or a nutrient structural controlled release fertilizer producing method, using high-nitrogen organic compound, urea transformed compound, and nitrogen phosphor potassium inorganic compound as main body, assorted with potassic fertilizer and granulating agent, and obtaining it by a series of process steps. It contains the nutrients: N, P, K, Ca, S, B, etc. where the N-P-K nutrient accounts for 30-35%, the medium trace element nutrient accounts for 5%-10%, the release period of the nutrients is over 70 days, the ratio of organic to inorganic nitrogen nutrients is 1 : 1, the soluble organic nitrogen accounts for 50% of total organic nitrogen, the dissolved P in the weak acid of P nutrient and organic P account for 50% of total P, and it can produce high-N high-P low-K type, low-N high-P high-K type, and balanced N-P-K type controlled release special fertilizer series according to plant varieties.

This invention provides a composition of insulating fluid and process for the preparation thereof that mainly contains alkyl benzenes. In addition to alkyl benzenes, the composition also contains an antioxidant, an antifoaming agent, a pour point dispersant, a corrosion inhibitor and a detergent—dispersant additive. The product of this invention has utility as an insulating fluid in electrical installations such as transformer.

The invention discloses a production method of organic rich selenium cowpea, and relates to the technical field of agriculture; the method comprises the following steps: (1) sowing and seedling raising; (2) making a rich selenium fertilizer; (3) preparing the soil and applying the rich selenium fertilizer; (4) field planting; (5) field management; and (6) harvesting. The production method of organic rich selenium cowpea achieves the purpose of normal growth of the entire growth and development period of cowpea by applying the fertilizer once without applying other chemical fertilizers, thus saving the labor cost of applying fertilizers for many times, achieving the purpose of saving the labor cost as well as producing rich selenium cowpeas, and further reducing the dosage of the selenium fertilizer, reducing the potential environment pollution by applying the selenium too much; and the method has a wide application foreground.

Synthetic surfaces suitable for culturing stem cell derived cardiomyocytes contain acrylate polymers formed from one or more acrylate monomers. The acrylate surfaces, in many cases, are suitable for culturing stem cell derived cardiomyocytes in chemically defined media.

Synthetic surfaces suitable for culturing stem cell derived cardiomyocytes contain acrylate polymers formed from one or more acrylate monomers. The acrylate surfaces, in many cases, are suitable for culturing stem cell derived cardiomyocytes in chemically defined media.

The present invention is directed to a wafer holder and a related wafer conveyor system. The wafer holder holds a wafer and moves horizontally within a chamber. A contact area between the wafer and the wafer holder is reduced, and potential contaminants generated by ear between components of the wafer holder are trapped by an airtight cover. Since the wafer holder moves horizontally while being fixed to a guide rail, the wafer conveyor system reduces friction between the guide rail and the wafer holder.

The present invention describes a new propofol-containing anesthetic pharmaceutical composition for parenteral administration, in the form of an oil-in-water microemulsion in which the oily phase is constituted by propofol in the form of particles with size comprised between 1 and 100 nm using a single surfactant selected from the group consisting of polyethylene glycol stearates with general formula C17H35COO.(OCH2CH2)nH or C17H35COO.(OCH2CH2)n.COOC17H35. The anesthetic pharmaceutical composition of the present invention is more potent for induction of hypnosis and anesthesia, has a ready-to-use presentation and highly stable particle size, presenting improved physicochemical properties, and preventing the potential risks of undesirable effects encountered in the state-of-the-art propofol formulations.

Synthetic surfaces capable of supporting culture of undifferentiated human embryonic stem cells in a chemically defined medium include a swellable (meth)acrylate layer and a peptide conjugated to the swellable (meth)acrylate layer. The swellable (meth)acrylate layer may be formed by polymerizing monomers in a composition that includes hydroxyethyl methacrylate, 2-carboxyehylacrylate, and tetra(ethylene glycol) dimethacrylate. The conjugated peptide may include an amino acid sequence of XaanProGlnValThrArgGlyAspValPheThrMetPro, where n is an integer from 0 to 3 and where Xaa is any amino acid. Further, disclosed herein is a swellable (meth)acrylate synthetic surface which can be sterilized by gamma irradiation.

The present invention provides an improved method and device for preparing, extracting, separating and / or purifying a biomolecule, for example, nucleic acid from a biological sample. The device comprises a heat-deformable material, such that an inner chamber adopts a second configuration having a chamber volume less than the chamber volume of a first configuration, thereby expelling at least a part of a processed sample through a second opening from the device, and thereby recovering the biomolecule-containing composition.

A laminated flat mop head which includes a flat foam layer laminated with a fabric material without using glue or adhesive.

Autologous bone marrow cells (BMC) are transplanted to a heterologous site in a patient after a sample of the patient's BMC has been tested and found to have a phenotypic profile which meets minimum criteria for transplantation. The phenotypic profile may be obtained by screening a sample of bone marrow cells (BMC) from the patient for the phenotypic profile, such as a CD profile, the phenotype profile may be assessed to determine the likelihood that the BMC will be suitable for transplantation to the heterologous tissue site without enriching particular phenotypic population(s) of the BMC.

Synthetic surfaces suitable for culturing stem cell derived oligodendrocyte progenitor cells contain acrylate polymers formed from one or more acrylate monomers. The acrylate surfaces, in many cases, are suitable for culturing stem cell derived oligodendrocyte progenitor cells in chemically defined media.

The invention relates to the technical field of liquid ammonia liquid level meters, in particular to a liquid ammonia liquid level meter capable of automatically cleaning impurities and a method thereof.The liquid ammonia liquid level meter comprises a sampling pipe and a floating ball liquid level sensor installed in the sampling pipe, the floating ball liquid level sensor is used for detecting the position of a floating ball and the height of the liquid level, and the floating ball liquid level sensor transmits detection data to a processor; a heat tracing pipe is arranged on the outer wall of the sampling pipe, a flow meter for introducing inert gas is arranged at the upper end of the sampling pipe, and a blow-down valve is arranged at the lower end of the sampling pipe. Whether the floating ball is stuck or not is judged by automatically detecting the position of the floating ball, then cleaning is achieved by heating and nitrogen introduction for purging under the condition that the floating ball is stuck, and due to the integrated automation technology, the accuracy of liquid level measurement of liquid ammonia and the stability of the system are remarkably improved. According to the device, impurities attached to the liquid level meter can be removed in time, the floating ball is prevented from being jammed, and accuracy and reliability of liquid level measurement data are ensured.

This invention provides a composition of insulating fluid and process for the preparation thereof that mainly contains alkyl benzenes. In addition to alkyl benzenes, the composition also contains an antioxidant, an antifoaming agent, a pour point dispersant, a corrosion inhibitor and a detergent-dispersant additive. The product of this invention has utility as an insulating fluid in electrical installations such as transformer.

The present invention is directed to a wafer holder and a related wafer conveyor system. The wafer holder holds a wafer and moves horizontally within a chamber. A contact area between the wafer and the wafer holder is reduced, and potential contaminants generated by ear between components of the wafer holder are trapped by an airtight cover. Since the wafer holder moves horizontally while being fixed to a guide rail, the wafer conveyor system reduces friction between the guide rail and the wafer holder.

The invention belongs to the technical field of plant cultivation and seedling raising, and particularly relates to a sand plant cultivation and seedling raising device which comprises a greenhouse body and a seedling raising bed, a U-shaped water receiving tank is fixedly mounted at the top of the outer side wall of the greenhouse body, and the bottom of the U-shaped water receiving tank is communicated with a water leakage pipe; a self-cleaning rainwater rough filtration mechanism is fixedly mounted on the outer side wall of the greenhouse main body, and a water and fertilizer integrated irrigation mechanism is fixedly arranged in the greenhouse main body; through an efficient rainwater collecting and filtering system and water and fertilizer integrated control, the utilization efficiency of water resources and fertilizers is improved, the self-cleaning function is achieved, blockage of a coarse filter screen is avoided, it is ensured that the rainwater collecting efficiency is stable, regular cleaning by personnel is not needed, and the labor cost is saved; extra energy consumption is not needed, the energy consumption is reduced, automatic mixing of the fertilizer and water can be realized, and the water and fertilizer integration efficiency is improved.

The invention is a method of producing green controlled release multi-nutrient fertilizer, or a nutrient structural controlled release fertilizer producing method, using high-nitrogen organic compound, urea transformed compound, and nitrogen phosphor potassium inorganic compound as main body, assorted with potassic fertilizer and granulating agent, and obtaining it by a series of process steps. It contains the nutrients: N, P, K, Ca, S, B, etc. where the N-P-K nutrient accounts for 30-35%, the medium trace element nutrient accounts for 5%-10%, the release period of the nutrients is over 70 days, the ratio of organic to inorganic nitrogen nutrients is 1 : 1, the soluble organic nitrogen accounts for 50% of total organic nitrogen, the dissolved P in the weak acid of P nutrient and organic P account for 50% of total P, and it can produce high-N high-P low-K type, low-N high-P high-K type, and balanced N-P-K type controlled release special fertilizer series according to plant varieties.

The invention discloses a large language model evaluation method, system and device, a medium and a program product, and the method comprises the steps: firstly, carrying out the pollution detection of an obtained benchmark test data set through a data detection method, obtaining first suspected pollution data, and then according to the type of the benchmark test data set, obtaining second suspected pollution data; data rewriting is conducted on the first suspected pollution data to obtain second suspected pollution data, data detection is conducted on the second suspected pollution data again through a data detection method till a preset stop condition is met, a benchmark test data set after pollution removal is obtained, and finally the data of the second suspected pollution data are detected on the basis of the benchmark test data set after pollution removal. And evaluating the large language model. Potential pollution of the benchmark test data set can be reduced, performance expansion of the large language model caused by remembering the leaked benchmark test is effectively relieved, the evaluation result of the large language model is more credible, and the real ability of the model can be better reflected.

The invention relates to a sampling system for a liquid cathode glow discharge spectrometer. The sampling system comprises a micro-plasma induced steam generator unit and a connecting unit for connecting the liquid cathode glow discharge spectrometer and the micro-plasma induced steam generator unit. The micro-plasma induced steam generator unit induces a sample solution to be detected to generate steam based on liquid cathode glow discharge micro-plasma; the connecting unit is used for conveying mixed gas of to-be-detected metal ion steam generated by the micro-plasma induced steam generator unit and carrier gas to a hollow anode of the liquid cathode glow discharge spectrometer through the connecting unit, and the mixed gas enters a glow discharge area and is excited to generate a characteristic emission spectral line. The sampling system based on atmospheric pressure liquid cathode glow discharge micro plasma induced steam generation is used for realizing gas sampling of SCGD-OES.