158results about How to "Resistance to degradation" patented technology

The present invention generally relates to a system for preventing surges in turbine engines and/or rotating compressors. Furthermore, some embodiments comprise sensors for monitoring engine operating characteristics and detecting surge and pre-surge conditions. Some embodiments also include means for adjusting engine operation in response to sensor data. Still other embodiments relate to methods of preventing surges in turbine engines and/or rotating compressors.

Melt blown bicomponent fibers comprising a sheath of polyethylene terephthalate or a copolymer thereof and a core of nylon 6,6 and a reservoir or a nib in a writing or marking instrument comprising a porous element formed from such fibers bonded to each other at spaced points of contact. For use as a nib the core polymer may also be polybutylene terephthalate.

The invention relates to a small RNA/DNA whitening product series, which mainly consists of a small RNA skin whitening lotion and a small RNA skin beauty cream. The small RNA skin whitening lotion mainly comprises efficient active ingredients for removing skin pigmentation and whitening skin, such as nano single-strand or double-strand oligonucleotides for specially and efficiency restraining genes (Asip, Mclr, Mitf, Dct, Silv, Oca2, Myo5a, Loc51151, Rab27a, Pomc, OA1,F2rl1, Kinesin, Slc24a5, Tyr and Tyrp1) relevant to melanin generation and a transdermal agent for stimulating oligonucleotides to enter skin melanocytes; the small RNA skin beauty cream comprises a plurality of highly active materials for maintaining pure and white skin and small RNA segments to prevent the sunshine from damaging the protective components of the skin and remove free radicals, and anti-aging and anti-inflammatory effective molecules. In addition, the invention further provides a formulation, a method and a procedure for preparing the series of whitening products.

A water content measuring apparatus, for measuring water content present in a fluid flow through a tube, includes a pulse generator for generating in operation a temporal series of excitation pulses, a coil arrangement disposed around the tube adapted to be excited into resonance by the series of excitation pulses and interact with the fluid flow through the tube, and a signal processor adapted to receive resonance signals from the coil arrangement for determining a water content present within the tube. The coil arrangement includes a resonance coil having a length-to-diameter ratio which is at least 3:1, and wherein the resonance coil includes at least 10 turns.

An oligonucleotide analogue useful for the antisense method, etc., having excellent enzyme resistance, having potent selective binding affinity for single-stranded RNA, and further having an excellent triplex-forming capacity with double-stranded DNA, and a nucleoside analogue useful for its production are provided.

Nucleoside analogues, which are compounds of the general formula (I) and salts thereof, and oligonucleotide analogues containing one or more of the nucleoside analogues:

• • where Base is an aromatic heterocyclic group or the like optionally having a substituent; R₁, R₂ and R₃ are each a hydrogen atom, a protective group for an amino group, a protective group for a hydroxyl group, a phosphate group, or —P(R₄)R₅ [where R₄ and R₅ are each a hydroxyl group, a protected hydroxyl group, a mercapto group, a protected mercapto group, etc.]; m=0 to 2; and n=1 to 3].

A corrosion-resistant coated base metal coated with a corrosion resistant alloy. The corrosion resistant alloy includes tin and zinc. The corrosion resistant coated base metal includes a heat created intermetallic layer primarily including copper and zinc.

A binder fiber comprising a polyamide component in at least part of a surface thereof is prepared. The polyamide component contains a semi-aromatic polyamide at least having an aromatic ring unit and a C_3-7 alkane unit which may have a branched CA _1-3 alkyl chain. In the binder fiber, the polyamide component may be (a) a semi-aromatic copolyamide having an aromatic ring unit, a C_3-7 alkane unit which may have a branched C_1-3 alkyl chain, and a C_8-12 alkane unit which may have a branched C_1-3 alkyl chain. The polyamide component may be (d) a combination of (b) a semi-aromatic polyamide and (c) a semi-aromatic polyamide, wherein the polyamide (b) has an aromatic ring unit and a C_3-7 alkane unit which may have a branched C_1-3 alkyl chain, and the polyamide (c) has an aromatic ring unit and a C_8-12 alkane unit which may have a branched C_1-3 alkyl chain.

An encapsulated railroad tie structure and its method of manufacture. A core of laminated wood slats is inserted into an extruded sleeve of scrap tire rubber and polyurethane. A urethane adhesive laminates the wood slats together and serves as a lubricant and bonding agent for placement and secured engagement of the sleeve about the core. End caps are securely engaged to both the core and sleeve. The core may be provided with bores and grooves to receive sensors and conductors interconnected with a processor and transponder maintained in an end cap. The end cap also maintains a photovoltaic device and power source for the active elements of the railroad tie structure. The core may also be manufactured of a wood or other natural fiber giving the core a desired flex modulus to provide for better control and serviceability of associated rails and railway cars.

A method for calibration of a substrate inspection tool is disclosed. The tool is used to inspect a standard substrate having simulated contamination defects with known characteristics. Performance of the tool in detecting the simulated contamination defects is determined. The tool exposes the standard substrate and simulated contamination defects to radiation having a wavelength of about 260 nanometers or less. The simulated contamination defects are stable over time under exposure to radiation having a wavelength of about 260 nanometers or less.

The invention relates to a hyaluronic acid (HA)-polyethyleneimine (PEI) bonded polymeric carrier material as well as a preparation method and application thereof. The polymeric carrier material is an HA-PEI polymeric carrier material prepared through grafting HA used as a frame onto PEI by utilizing 1-Ethyl-3-(3-dimethyllaminopropyl)carbodiimide hydrochloride (EDC.HCl) as a cross-linking agent. The polymeric carrier material can be used for improving the targetting performance of gene/anion proteins in a cell, reducing the toxicity to the cell and improving the conversion efficiency of targetting genes, and has a wide application prospect.

This invention discloses the creation of a novel single ligand-targeted multi-stereoisomer peptide-polymer conjugate compounds comprising a group of different synthetic and chemically modified stereoisomer peptides that have been conjugated to a biocompatible polymer carrying a peptide ligand for targeted delivery and/or encapsulated in ligand targeted polymer nanoparticles. The unique physicochemical properties of the stereoisomer peptides provide therapeutic compounds with ideal biopharmaceutical properties. The stereoisomer peptides carried by the polymer are delivered to cells or tissues to inhibit, suppress, block, antagonize or disrupt, simultaneously and independently, the functional domain of different disease causing proteins. Therefore the compounds are novel therapeutics for the treatment of abnormal angiogenesis and inflammation which are the hall mark of most human diseases including but not limited to all cancers, metastasis, eye retinopathies, cardiovascular, brain, and neurodegenerative disorders, diabetes, and diseases caused by infectious microorganisms including virus, bacteria, fungi, and parasites.

There are provided a novel series of peptide analogs of hGH-RH(1-29)NH₂ and hGH-RH(1-30)NH₂ which show high activities in stimulating the release of pituitary GH in animals. They retain their physiological activity in solution for extended periods of time and resist enzymic degradation in the body. These novel and useful properties appear to be due to novel substitution patterns ant at the 1, 15, 27 and 29 positions on the peptide.

Disclosed is an adiponectin-Glucagon-like peptide-1-like peptide recombinant protein expression vector and construction, wherein adiponectin and GLP-1-A encoded gene are obtained by utilizing PCR technology, the method comprises obtaining adiponectin through amplification of adiponectin spherical domain gene, then obtaining GLP-1-A encoded gene by mutating codons encoding No. 8 amino acid alanine in GLP-1-(7-37) encoded gene, then cloning GLP-1-A and adiponectin encoded genes directionally to expression vector by utilizing enzyme digestion technology, obtaining adiponectin-glucagon-like peptide-1 analogue peptide fusion protein expression vector, finally expressing adiponectin-GLP-1-A fusion protein through transforming protein expression bacteria.

An alkylenesulfonic group and/or an alkylenesulfo-ether group is introduced as an ionic conductivity-imparting group into a polyazole such as a polyimidazole, a polyoxazole, or a polythiazole each having good resistance to oxidation. The resulting polymer yields an electrolyte, an electrolyte membrane, and a membrane electrode assembly which are available at low cost, contains ionic conductivity-imparting groups stable over extended periods of time and satisfactorily resistant to oxidative degradation. This enables long-term continuous use of mobile cell power sources, dispersed cell power sources, and cell power sources for mobile units.

A roof drip edge including a roof leg and a drip leg joined to a down leg adapted to protect the intersection of a roof and fascia of a building. Some embodiments include a back drip leg adjacent to the drip leg. Some embodiments include tabs positioned on the roof leg for protection from water infiltration under roof shingles.

The invention belongs to the technical field of agricultural biology, and in particular relates to a gene silencing technology-based lethal gene fragment Chitinase 7 of laodelphax striatellus and dsRNA (double-stranded RNA) thereof. In the patented invention, a dsRNA feeding method improved in laboratories is used for screening out the lethal gene fragment Chitinase 7 of the laodelphax striatellus as shown in SEQ ID NO. 1 from laodelphax striatellus, wherein the lethal gene fragment Chitinase 7 of the laodelphax striatellus can lead to the death of laodelphax striatellus after being interfered; the dsRNA of the gene fragment is used for feeding the laodelphax striatellus so as to ensure that the corrected death rate of the laodelphax striatellus reaches more than 65%; and the lethal gene fragment Chitinase 7 and the dsRNA thereof provide a sequence and data basis for establishing a new strategy of controlling injurious insects by using a RNA interference technology.

The invention belongs to the technical field of agricultural biology, and in particular relates to gene silencing technology-based lethal gene fragment Chitinase 7 of laodelphax striatellus and dsRNA (double-stranded RNA) thereof. In the patented invention, a dsRNA feeding method improved in laboratories is used for screening out the lethal gene fragment Chitinase 7 of the laodelphax striatellus as shown in SEQ ID NO. 1 from laodelphax striatellus, wherein the lethal gene fragment Chitinase 7 of the laodelphax striatellus can lead to the death of laodelphax striatellus after being interfered; the dsRNA of the gene fragment is used for feeding the laodelphax striatellus so as to ensure that the death rate of the laodelphax striatellus reaches 70%; and the lethal gene fragment Chitinase 7 and the dsRNA thereof provide a sequence and data basis for establishing a new strategy of controlling injurious insects by using an RNA interference technology.