摘要:
Disclosed is an electronic ballast for a high intensity discharge lamp which is capable of reducing the number of parts to thereby maintain a high power factor and prevent power loss generated in the circuit thereof. The electronic ballast includes: a converter part (2) having first to fourth rectifying diodes (D1-D4), a choke coil (TR2) and a first condenser (C4); an inverter part (3) having first and second switching transistors (K1, K2), a second condenser (C13), a DIAC (D11), and first and second gate wave shaping integrated circuits (IC1, IC2); an output matching part (4) having a resonant coil (TR4), first to third resonant condensers (C7-C9), and a transformer (TR3); an absorbed DC power source part (5) having first and second diodes (D7, D8) and third and fourth condensers (C5,C6); a power control part (6) having a first operational amplifier (U2), first and second DC voltage detection resistors (R8, R9), a first resistor (R15), a second operational amplifier (U1), a second resistor (R7), a third resistor (R6), a first comparator (U3), a fourth resistor (R11), a second comparator (U4), a fifth resistor (R14), a first switch (SW1), a third comparator (U5), a timer, a sixth resistor (R16), a fifth condenser (C15) and an undervoltage lockout; and a gate transformer (TR5).
摘要:
Novel styrylacrylonitrile compounds which are useful in treating a variety of cell proliferative disorders such as cancer are disclosed. The compounds are of Formula (I).
摘要:
Crystalline salts of swainsonine, and methods of using the same. Pharmaceutical composition for treatment of cancer, hepatitis c, viral bacterial, fungal or parasitic infections; for stimulation hematopoietic growth, for inhibiting metasis or neoplastic growth, for stimulating the immune system, etc.
摘要:
Method of determining the biological active urotensin II in a sample of a body fluid, comprising contacting the sample with polyclonal and/or monoclonal antibodies which have been elicted by immunisation with a cyclic peptide having the sequence: having a disulfide bridge formed between Cys 5 and Cys 10, and comprising the artificial sequence βAla-Cys, optionally conjugated with a carrier peptide. The obtained antibodies are then either purified or characterised by their binding to cyclic human urotensin II and can be used in a binding assay for a diagnosis of cardiovascular diseases, heptarenal syndrome, cirrhosis, diseases involving haemodynamic alterations, pathological conditions involving vasocontrictive substances.
摘要:
A casting wheel is provided carrying a rotating inner-radius mold wall (8) along its rim and featuring a non-rotating mold sector (11) comprising at least one rigid mold segment (10) incorporating an outer-radius mold wall (12), circumferentially oscillated about an external stationary support (34). The casting wheel includes circumferential guide tracks (5, 6) around the wheel periphery, along which cam guide rollers (15) carrying the non-rotating segments (10) act to maintain a closely controlled interface clearance between the inner (9) and outer-radius (21) mold wall edges throughout the rotation. The non-rotating mold sector (11) may be constructed as a single enclosure, or multiple segments (10) hinged together for oscillation by a single oscillator (32), each segment incorporating its own guide roller system. Each box inside wall doubles as the mold envelope outside wall (12) which may be cooled by water sprays (39) directed from nozzles (38) or direct sealing and pressurizing of segments (10) through which controlled coolant flow is maintained. Because of the rigid construction of both wheel and closure, the invention is also adaptable to casting of wide slab sections for flat-rolled products, simply by increasing the width of the wheel in relation to the depth of the mold envelope. The invention includes embodiments providing adjustable-width side dams (44) for adjusting cast slab width, extra clearance for submerged entry nozzles for casting of thin slab sections, and is adaptable for a variety of near net shape products including structural sections. An embodiment includes non-oscillated roller segments (90) carrying a series of idler rollers (69) in place of the outer-radius mold wall (12), following the formation of a cohesive solid skin on the section being cast. This eliminates significant closure friction and assures non-sliding contact at controlled pressure between stock and wheel, thereby propelling the stock by static friction along the arc of contact with the wheel , rather than by pulling with withdrawal rollers following discharge, or with driven rollers along the containment section. Various other features and advantages of the apparatus are disclosed.
摘要:
The invention relates to a method for assaying for the presence of a substance that modulates a cytokine of the TGF- beta superfamily. A substance which is suspected of modulating a cytokine of the TGF- beta superfamily and a TGF- beta binding compound which is not a TGF- beta receptor and which contains a TRH1 domain, or a portion or mimetic thereof, is reacted with a cytokine of the TGF- beta superfamily under conditions where the compound, portion or mimetic thereof, and the cytokine are capable of forming a complex. Complexes, free compound and/or cytokine are assayed and compared with a control. The invention also relates to a composition comprising at least one compound which is not a TGF- beta receptor and which contains the TRH1 domain or a portion, or a mimetic thereof, and a pharmaceutically acceptable carrier, auxiliary or excipient and to methods of treatment using the composition. Further the invention relates to a method of enhancing the activity of growth factors.
摘要:
The use of epidermal growth factor for a manufacture of a medicament for treating or preventing gastric ulcers in an animal susceptible to or suffering from such ulcers is described. Epidermal growth factor (EGF) can be used as a gastrointestinal therapeutic agent. As such, EGF is useful in preventing gastrointestinal colonization by pathogens such as Helicobacter pylori . An important use of EGF is therefore in the prevention of bacterial colonization at gastric ulcer sites which contributes to the chronicity of the ulcer. EGF can also be used in accelerating the healing of gastric ulcers.
摘要:
The present invention relates to a milk product package useful for indicating milk acidity. This container is comprised of any (standard type of) milk product container, a transparent (impermeable) window (4) integrated into any side of the container (where the interior side of the window is in contact with the milk product and the exterior side of the window may be observed without opening the container), and a color changing acidity indicator located on the interior side of the window.
摘要:
Methods for preparing recombinant proteins, such as antibodies, in eggs are described. The method offers advantages over existing systems for preparing recombinant proteins including high yield, low cost and compatibility with animal protection regulations. In addition, since eggs are edible food sources the recombinant protein does not have to be isolated from the egg.
摘要:
The present invention relates particularly to neoplastic cells targeted chimeric toxins comprising of cell targeting moieties and cell killing moieties for recognizing and for destroying the neoplastic cells, wherein the cell targeting moieties consist of gonadotropin releasing hormone homologues and the cell killing moieties consist of Pseudomonas Exotoxin A. The present invention further relates to pharmaceutical compositions containing as an active ingredient these neoplastic cells targeted chimeric toxins and to a method for the production of these chimeric toxins. The said invention also relates to a method for cancer therapy, treating malignant carcinoma cells and benign hyperplasia including uterine lyomyoma cells, extra uterian endometrial island cells, benign hyperplasia of prostate and breast and pituitary tumor adenoma cells, by the use of the above-mentioned chimeric toxins.