Abstract: A power converter capable of improving converter's efficiency and achieving zero-voltage-switching is provided, in which a first series circuit is connected in parallel with a direct current (DC) power supply and has a first inductor, a first primary winding, first and second switching elements connected in series. A second series circuit is connected in parallel with the DC power supply and has third and fourth switching elements, a first capacitor, a second primary winding and a second inductor connected in series. A second capacitor is connected between a first node between the first primary winding and the first switching element in the first series circuit and a second node between the fourth switching element and the second primary winding in the second series circuit. A third node between the first and second switching elements is connected to a fourth node within the second series circuit.

Abstract: Disclosed is a synthesis suitable for large scale manufacture of an A2A-adenosine receptor agonist, and also relates to polymorphs of that compound, and to methods of isolating a specific polymorph.

Abstract: A method of growing highly planar, fully transparent and specular m-plane gallium nitride (GaN) films. The method provides for a significant reduction in structural defect densities via a lateral overgrowth technique. High quality, uniform, thick m-plane GaN films are produced for use as substrates for polarization-free device growth.

Abstract: An angle sensing system for sensing a rotating angle of a steering wheel includes a sensing unit, a processing unit, and a storage unit. The sensing unit detects the rotating angle of a steering column connected to the steering wheel and outputting a sensing signal based on the rotating angle. When the steering column rotates for a circle, the sensing signal presents a non-continuous status. The processing unit calculates the relative angle in a single loop of the steering column based on the sensing signal and the number of loops according to the number of the non-continuous status. The storage unit stores the information of the relative angle and the number of loops. Based on the number of loops and the relative angle, the rotating angle of the steering wheel is detected.

Abstract: The present invention discloses an intermittently opened cracking crude oil apparatus comprising a high pressure container (1), a support post (2) and a gold sleeve (3). A sealed reaction chamber of natural gas (4) is formed between an exterior surface of the support post and an interior surface of the gold sleeve, and a sealed high pressure chamber (5) is formed between an interior surface of the high pressure container and an exterior surface of the gold sleeve. A gas outlet is provided in the support post and communicates the reaction chamber of natural gas, the gas outlet communicating a gas conduit (7), the gas conduit being connected to a natural gas collector (8). A movable valve needle (9) is provided on the gas outlet to control open and close of the gas outlet. A liquid inlet (10) is provided on the high pressure container and communicates the high pressure chamber, the liquid inlet communicating a liquid conduit (11) which communicates a high pressure liquid supply.

Abstract: A rare-earth fluorescent complex which forms a fluorescent complex with two or more rare-earth metals such as europium and terbium and can effectively be excited at a wavelength of 340 nm or longer; a fluorescent labeling agent comprising the rare-earth fluorescent complex; a method of fluorescent labeling in which the rare-earth fluorescent complex is used as a labeling agent; and a method of fluorometric analysis in which the fluorescent labeling agent is used. The rare-earth fluorescent complex is characterized by having a cyclic ligand comprising a 4-biphenyl-2,2?:6?,2?-terpyridine skeleton and a 2,6-bis(3?-aminomethyl-1?-pyrazolyl)pyrazine skeleton bonded thereto.

Abstract: Provided is a method of preparing allylchlorosilane, and more particularly, a method of preparing allylchlorosilane with high yield by Si—C coupling reaction of an allyl chloride derivativce with a hydrosilane derivative under specific reaction conditions without using a catalyst.

Abstract: Described herein are molecules, constructs and methods for the production and secretion of polypeptides of interest by host cells, preferably bacterial host cells, and more particularly gram positive bacteria. In particular, the present invention is related to a polynucleic acid encoding a fusion protein and to uses thereof for the secretion of heterologous or homologous polypeptides of interest by a bacterial host cell, preferably Clostridium bacteria. The present invention further relates to methods and constructs for the production and secretion of heterologous or homologous polypeptides of interest proteins by host cells using such polynucleic acids and fusion proteins.

Abstract: The present invention provides a catalyst for generating hydrogen containing at least one composite metal selected from the group consisting of a composite metal of platinum and nickel and a composite metal of iridium and nickel, the catalyst being used in a decomposition reaction of at least one compound selected from the group consisting of hydrazine and a hydrate thereof; and a method for generating hydrogen, including contacting the catalyst for generating hydrogen with at least one compound selected from the group consisting of hydrazine and a hydrate thereof. According to the invention, hydrogen can be efficiently generated with improved selectivity in the method for generating hydrogen that utilizes the decomposition reaction of hydrazine.

Abstract: The present invention provides a combination comprising a compound 1 of formula (A) and one or more antineo-plastic agents selected from the group consisting of an antibody inhibiting a growth factor or a receptor of the growth factor, a proteasome inhibitor or a derivative or prodrug thereof, and a kinase inhibitor or a derivative or prodrug thereof useful in the treatment of tumors.

Abstract: The present invention relates to an effective fraction of alkaloids and the effective fraction is prepared from mulberry twig and its active ingredients are a composition of alkaloids. Determined by HPLC, the percentage of the total alkaloids are 50% or more by weight in the effective fraction and the percentage of the compound 1-deoxynojirimycin is 30% or more by weight in the total alkaloids. The effective fraction of the invention is prepared as the following steps: the mulberry twig is extracted by solvents, and the extract is precipitated by alcohol precipitation or flocculation to remove the impurities, and then concentrated, purified by resin chromatography. The present invention also relates to a pharmaceutical composition containing the said effective fraction of alkaloids and to the use of the effective fraction of alkaloids according to claim 1-4 in preparing hypoglycemic agents.

Abstract: Disclosed are a gas to liquids (GTL)-floating production, storage and offloading (FPSO) system that can be used in offshore oil fields or stranded gas fields and a method for producing synthetic fuel using the same. More particularly, the disclosure relates to a GTL-FPSO system capable of producing liquid synthetic fuel from gas extracted from stranded gas fields or associated gas extracted from oil fields, including a reforming reactor and a liquid hydrocarbon producer, and a method for producing the same.

Abstract: The present invention relates to a wireless sensor network, and more particularly, to a head node selection method for clustering in a wireless sensor network and a wireless sensor network. The wireless sensor network for determining a head node that includes: a first node; and a second node wirelessly being in communication with the first node, wherein the first node broadcasts a final head node message which is a message indicating that the first node itself is a final head node to the second node if the residual energy of the first node is larger than the residual energy of the neighboring nodes. It is therefore possible to minimize clustering process time.

Abstract: Disclosed is a water soluble nanocrystal having a core comprising at least one metal M1 selected from an element of subgroup IIb, subgroup VIIa, subgroup VI11a, subgroup 1b, subgroup IV, main group II or main group III of the periodic system of the elements (PSE), at least one element A selected from an element of the main group V or VI of the periodic system of the elements, wherein a capping reagent is attached to the surface of the core of the nanocrystal, and wherein the capping reagent forms a host guest complex with a water soluble host molecule.

Abstract: A caring system at home having two-way wireless network and reminding & warning functions is disclosed. The caring system at home includes a physiological signal measuring instrument, a wireless integrated control module, a reminding & warning device, a graphic user's interface system, as well as a database server. The physiological signal measuring instrument transmits the measured results to the graphic user interface for displaying through the wireless two-way transmitting module and stores the data in the database server for collecting, analyzing, and data-inquiring. The wireless two-way transmitting module is capable of receiving the signals transmitted by the graphic user interface to accomplish the reminding & warning functions. In addition, the mobile device transmitting module transmits the reminding & warning information to the mobile device.

Abstract: Provided is an isolated polypeptide comprising a Cricetulus griseus sequence capable of mediating apoptosis of a cell, the sequence being selected from a FAIM sequence shown as SEQ ID NO: 1; a FADD sequence shown as SEQ ID NO: 2; a PDCD6 sequence shown as SEQ ID NO: 3; and a Requiem sequence shown as SEQ ID NO: 4.

Abstract: A gamma ray detector for detecting a gamma ray emitted from a target of measurement includes: an organic scintillator for detecting Compton electrons resulting from a gamma ray emitted from the target of measurement; an inorganic scintillator for detecting a Compton gamma ray; and photodetector modules for detecting light generation in the corresponding scintillators. Light generation signals from the organic and inorganic scintillators are synchronously measured, and a detection window of a gamma ray is generated. Thus, an inexpensive radiation diagnostic device of an ultra-high S/N ratio and low cost is provided.

Abstract: Disclosed are novel compounds that are A2B adenosine receptor antagonists, useful for treating various disease states, including asthma and diarrhea.

Abstract: Porous polymeric articles, and more specifically, porous polymeric articles for tissue engineering and organ replacement, are described. In some embodiments, methods described herein include use of a polymer-solvent system (e.g., phase inversion) to generate porosity in a structure. The process may include formation of a structure precursor material including a first crosslinkable component and a second component that can be precipitated in a precipitation medium. The structure precursor material may be shaped into a three-dimensional shape by a suitable technique such as three-dimensional printing. Upon shaping of the structure precursor material, at least a portion of the first component may be crosslinked. The structure may then be contacted with a precipitation medium to remove the precursor solvent from the structure, which can cause the second polymer component to precipitate and form a porous structure containing a network of uniform pores.

Abstract: The present invention provides a composite separator for a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same, in which a graphite foil prepared by compressing expanded graphite is stacked on a carbon fiber-reinforced composite prepreg or a mixed solution prepared by mixing graphite flake and powder with a resin solvent is applied to the cured composite prepreg such that a graphite layer is integrally molded on the outermost end of the separator.