36results about How to "Desirable stability" patented technology

A central-controlled double wheel structure allows accurate performance in controlling the direction of movement of transporting devices when a braking block, a direction limiting member, and a toothed braking member are stably and properly intermeshed, thereby ensuring transporting devices to move in a preset straight direction. The double wheel structure has braking pads that are connected to bridging plates which are in turn connected to a connecting seat, and positioning of the braking pads is controlled by the upward or downward movement of the connecting seat as the bridging plates act as a lever structure with the axial rod as the axis. Further, the serrated cogging ends of the braking pads may intermesh into the cogging teeth of the wheel bodies to effectively stop the movement of transporting devices without subjecting the braking pads and the wheel bodies to extensive wearing.

Techniques for nanoflow serial femtosecond x-ray protein crystallography include providing a sample fluid by mixing a plurality of a first target of interest with a carrier fluid and injecting the sample fluid into a vacuum chamber at a rate less than about 4 microliters per minute. In some embodiments, the carrier fluid has a viscosity greater than about 3 centipoise.

Thermoplastic elastomer compositions, in particular derived from one or more styrenic block copolymers wherein at least one styrenic block copolymer comprises a controlled distribution copolymer block including a conjugated diene and a mono alkenyl arene, a plurality of biorenewable materials, preferably a softener and one or more synergistic additives such as a polar polymer; a synergistic block copolymer such as a relatively high molecular weight styrenic block copolymer; and / or filler. Numerous desirable articles can be formed from the compositions. Processes for preparing the compositions and articles are disclosed.

The invention relates to a multi-pipe quantitative medium filling system of a supercritical fluid waterless dyeing machine. The system comprises a supercritical fluid medium reservoir, a stop valve, and a medium filter sequentially connected by a high-pressure main pipe, and at least two filling branches independent of each other and connected to the medium filter. Each filling branch includes a booster pump, a supercritical fluid high-pressure mass flowmeter, a ball valve, and a dyeing unit sequentially connected along a medium forward direction by a high-pressure branch pipe. By using a mass-measurement filling system having multiple branches independent of each other, the invention can effectively realize simultaneous and accurate quantitative medium filling for separate dyeing units and differentiated filling for dyeing units with different medium masses, thus overcoming disadvantages such as unreliability, inaccuracy and low use efficiency of a conventional method, and also making a dyeing operation simple and scientifically feasible.

The invention discloses a freeze-dried nanometer powder injection of ursolic acid and a preparing method thereof. It major composes of active material of ursolic acid, complex vehicle of nanometer powder, excipient of freeze-drying. Compared to other popular preparations, its advantages are high target application of liver, concentrate on the affects, increase curative effect, decrease side effect, high dispersity and stability. It is prepared through dissolving ursolic acid as active raw material in medical organic solvent, adding complex vehicle of bean lecithin and stearic acid, stirring while heating until reaction completed, adding distilled water, adding excipient, stirring while heating until reaction completed, filtering with microporous membrane and freeze-drying the filtrate. Its average particle size is 209.5 mm, drug loading is 25.2%. it is for inhibiting and treating liver cancer, decreasing expression of p53, bcl-2 and topo-II.

Disclosed are concentrated liquid rinse cycle fabric softener compositions comprising a quaternary ammonium cation and benzylated alcohol solvent having between 50% to 90% weight active ingredients. Benzyl alcohol is disclosed as a preferred solvent to produce a clear liquid solution formulation rather than emulsion. The concentrated liquid rinse cycle fabric softener compositions of the present invention possess desirable stability, sustainability and fabric-softening properties. Methods of use are further described.

The present disclosure relates to an ink-jet ink set which, in spite of using a black ink including a black pigment, may form printed matter (e.g., images) with desirable water resistance and / or color balance after fading (fading stability) and / or ink-jet ink sets with desirable storage stability. An ink set may include a yellow dye ink including a yellow dye, a magenta dye ink including a magenta dye, a cyan dye ink including a cyan dye and a black ink. A black ink may include a black pigment, a yellow dye, a magenta dye and a cyan dye. A black ink may have a weight ratio of an amount of a black pigment to a total amount of the yellow dye, the magenta dye, and the cyan dye of from about 5 / 95 to less than about 30 / 70 (e.g., from about 5 / 95 to about 30 (but not inclusive of 30) / 70).

In one aspect of the present invention, a stator of a linear compressor comprises first stator pieces that are circumferentially and sequentially arranged about an axial direction and are radially disposed, second stator pieces that are provided between outer parts of the adjacent first stator pieces, and an outer side, away from a motor axis, of the second stator pieces assembled at an outer circumference of the stator. The stator can reduce the magnetic losses of the stator caused by the gap, and improve the efficiency of the motor. It can also improve the performance, stability, durability and reliability of the linear compressor. It can also reduce the bulk of the linear compressor.

Storage stable sterile ready-to-administer formulations comprising N-acetylcysteine are presented with desirable stability characteristics. In preferred aspects, formulations comprise low quantities of one or more chelating agents, contain N-acetylcysteine at a concentration of 25 mg / mL or 50 mg / mL, and are packaged in a suitable format, such as a polymeric bag with a metalized overwrap and a non-contact oxygen scavenger.

The present invention provides a crystalline form of HPPH (2-((1′-n-hexyloxy)ethyl)-2-divinyl-pyropheophorbide-a):The crystalline form can be characterized by an X-ray powder diffraction (XRD) pattern and differential scanning calorimeter (DSC) pattern. The present invention also provides a method for preparing the crystalline form of HPPH.

A stable, ready-to-use injectable solution including thiotepa and one or more pharmaceutically acceptable solvents, co-solvents, and / or solubilizing agents. Formulations retain at least 90% and as high as 99% of the purity of thiotepa as measured by HPLC after storage at 25° C. / 60% RH for a period of 7 days. Certain formulations retain at least 99% of the purity of thiotepa as measured by HPLC after storage for at least six months at 2-8° C.