86results about How to "Even dose" patented technology

A gas burner comprising a section for mixing combustible gas with air; a cover lid closing the mixing section; and a crenellated wall comprising first segments with a first thickness and one or more second segments with a second thickness greater than the first thickness, the second segment allows the cover lid to be sitting and placed over the wall, and main portholes which are constant for a determined length of said main portholes from an inside towards an outside of the crenellated wall, and near the outside of the crenellated wall, the height of the porthole is decreased by virtue of an α angle; one or more secondary portholes with a size smaller than the main portholes, wherein the at least one secondary porthole has a change in direction in such a way, that the height of the at least one secondary porthole decreases from the inside towards the outside of the crenellated wall according to a β angle until the height of the porthole achieves a constant height near the outside of the wall; and two or more tertiary portholes per each first and second segment with a half cane shape, the diameter of each half cane being equal to the width and depth of said tertiary porthole, wherein said tertiary portholes are of lesser size than the at least one secondary porthole.

The invention relates to a method for irradiating partly formed packages (10) with electron beam irradiation from at least one electron beam sterilizing device (18), characterized in that it comprises: providing at least one partly formed package (10) to be irradiated in a gaseous environment, and exposing the gaseous environment to a pre-determined pressure regulation cycle and exposing the partly formed package (10) to irradiation at least during a portion of said pressure regulation cycle. The invention also relates to a device for realizing said method. The invention further relates irradiation of a packaging material web.

An intravascular stent especially suited for implanting in curved arterial portion. The stent retains longitudinal flexibility after expansion. The stent is formed of intertwined meander patterns forming triangular cells. The cells are adapted to provide radial support, and also provide longitudinal flexibility after expansion. The cells also provide increase coverage of a vessel wall. The stent has a reduced crimped profile due to the differing lengths of adjacent structural members within the cells, resulting in loops which are not aligned around the circumference of the stent. Also, this stent may contain a second type of square cells, which are adapted predominately to minimize flaring of the stent ends and to provide additional stiffness.

A toroidal brachytherapy balloon is provided that fits over any brachytherapy applicator and reproducibly positions the applicator on every use.

A method of irradiating a fibrous organic material comprising the steps of:

• • conveying an organic material formed into a cord-like configuration between two spaced-apart support members; and
  • supplying a charged particle beam to the organic material at a location between the support members.

The invention provides a method of preparing a dry powder inhalation composition comprising a pharmaceutically acceptable particulate carrier, a first particulate inhalant medicament and a second particulate inhalant medicament. Also provided are dry powder compositions and methods of using them with a dry powder inhalation device.

The invention relates to a ship-mounted black odoriferous water treatment device and belongs to the technical field of water environment restoration engineering. The ship-mounted black odoriferous water treatment device comprises an agent feeding system, a micro-nano-aeration system, a control system and a power system. Through combination of a submersible pump and a filter screen, large granule foreign materials are isolated so that later equipment normal running is guaranteed, the enough solvent source and inlet liquid source are supplied for an agent preparation process and an agent spraying process and agent adding efficiency is improved. A powder automatic feeding device guarantees agent preparation convenience and fastness. Through combination of an agent storage tank and an agent feeding tank, agent feeding continuity and efficiency are guaranteed and an operation cost is saved. Through combination of the agent feeding system and the micro-nano-aeration system, a water dissolved oxygen amount is increased and the agent can be uniformly dispersed in black odoriferous water. Equipment parameter setting and data processing can be finished through the control system so that equipment operation efficiency is greatly improved.

The invention discloses a scale inhibitor dosing device for direct drinking water, belongs to the technical field of drug delivery, and provides a stable and uniform scale inhibitor dosing device. The bottom of the shelf is equipped with rollers, which are set on the moving guide rails. Water channels are arranged at the bottom of the moving guide rails. Medicine storage boxes are installed on the shelf. A group of rotating gears are meshed and connected with each other. The motor is set on the placement frame. There is a medicine injection hole, and the medicine storage box is connected with the air compression pump. Its main purpose is to add antiscalant to drinking water.

The invention provides a preparation method of highly dispersed superfine powder particles. The powder particles consist of an active ingredient and an additive. The preparation method comprises the following steps: (1) acquiring the superfine powder particles containing the active ingredient; (2) processing the additive: adding the additive to an alternative solvent, and completely dissolving the additive so as to obtain an additive solution; (3) preparing a dispersion suspension: adding the superfine powder particles containing the active ingredient to the additive solution, uniformly dispersing the solution by virtue of a dispersing machine and (or) an emulsifying machine, so that the dispersion suspension is obtained; (4) collecting a sample: processing the dispersion suspension by virtue of a drying method so as to obtain dry powder; and (5) obtaining the final superfine powder particles. The preparation method provided by the invention can complete surface treatment merely by virtue of a conventional dispersing technology as well as common vacuum drying, rotary evaporation, spray-drying and freeze-drying technologies, and the preparation method is simple in process.

The invention discloses a sewage treatment system for printing and dyeing, which aims to solve the problem that the traditional sewage treatment system has poor decomposition effect on organic matters in sewage. Sewage is sequentially passed into the hair removal tank, collection tank, adsorption sedimentation tank, hydrolysis tank, aerobic tank, degassing tank, sedimentation tank, intermediate tank, dosing tank, air flotation tank, activated carbon tank, secondary sedimentation tank and reclaimed water return Use equipment to physically, chemically and biologically decompose the sewage generated by printing and dyeing. The sewage treatment system for printing and dyeing of the present invention has more thorough and efficient decomposition, thereby completing the systematic treatment of printing and dyeing sewage, effectively solving the problem of sewage discharge, and making contributions to emission reduction and environmental protection.

The invention discloses a sewage treatment dosing apparatus. The sewage treatment dosing apparatus comprises a dosing box main body, a central water pipe and a chemical discharging box, wherein four dosing pipes are arranged on the top end of the dosing box main body at intervals, the top end of the dosing pipe is provided with a dosing cover, four sides of the top of the dosing box main body arerespectively provided with an observation groove, a glass plate is embedded inside the observation groove, the glass plate is provided with scales, a central water pipe is fixedly arranged on the center of the top inside the dosing box main body, four funnel-shaped plates are fixedly arranged on the top inside the dosing box main body at intervals, and a first separation plate is fixedly arrangedbetween two adjacent funnel-shaped plates. According to the sewage treatment dosing apparatus, by virtue of the cooperative design of the first separation plate and the funnel-shaped plates, the innertop of the dosing box main body can be divided into four chemical chambers for separately storing four chemicals; and by designing a funnel-shaped moisture absorption mat, the moisture in the chemical can be absorbed, and the agglomeration and deterioration of the chemical can be avoided.