152results about How to "Reduce heat stress" patented technology

The present invention provides a milk cow house cooling control system based on physiological discomfort index. The invention converts the real-time measured temperature, humidity, light and other data in the cow-house into the 'Heat Stress' physiological discomfort index PCI of the cow, intelligently automatically opens the air machine and spraying or atomizing operation based on the physiological discomfort index, and automatically controls the spraying or atomizing time and the spraying or atomizing interval and whether to start up the spraying or atomizing function based on the cow house humidity, and the spraying or atomizing and the air machine are alternated operations. The present invention can effectively alleviate the thermal stress of milk cow in summer, to ensure milk cow health and normalized exertion of production performance, and simultaneously has energy-saving effect.

A lightweight rammer system and method for engaging an artillery projectile or propellant charge, wherein the rammer system comprises an internal combustion generator comprising a first firing mechanism; an actuator driven by the firing mechanism, wherein the actuator comprises a propellant combustible into a pressurized fluid; and a pressure accumulator connected to the actuator, wherein the pressure accumulator controllably releases the pressurized fluid; a ramming component connected to the internal combustion generator and powered by the pressurized fluid; and means for regenerating pressure in the pressure accumulator actuated by recoil motion of the ramming component.

The present invention provides a polarizer and a polarizing plate having less dimensional changes to heat stress. The present invention provides also a liquid crystal display that includes the polarizer and the polarizing plate, and is free of color irregularity or decoloration. The polarizer has shrinkage force of not more than 4.0 N/cm in the absorption axis direction after being heated at 80° C. for 30 minutes. A protective film is laminated on at least one surface of the polarizer in order to form a polarizing plate, and the polarizing plate has a following relationship of 0.01≦A/B≦0.16 when A denotes a thickness of the polarizer and B denotes a thickness of the protective film.

A power module according to the present invention is a power module configured such that a power device chip is arranged within an outer casing and an electrode of the power device chip is connected to an external electrode that is integrated with the outer casing. The power module includes: a heat spreader fixed inside the outer casing; the power device chip solder-bonded on the heat spreader; an insulating dam formed on the heat spreader so as to surround the power device chip; and an internal main electrode having one end thereof solder-bonded to the electrode of the power device chip and the other end thereof fixed to an upper surface of the dam. The external electrode and the other end of the internal main electrode are electrically connected to each other by wire bonding.

The present invention is sealed hot pressing technological process of producing no-glue fiber board with wood, bamboo or herbaceous plant as material, and solves the technological problems of lowering hot press pressure and expanding the product thickness and density range. The technological process includes the steps of: separating the material into wet fiber and applying paraffin emulsion; drying and spreading; pre-pressing; sealed and heated pressing the board blank inside sealing frame in a hot press to form the no-glue fiber board. The hot pressing step consists of hydrolysis section, air exhausting section and plasticizing section, and the sealing frame is heat resistant and airtight and in the shape of formed board.

The invention discloses a pregnant sow feed for comprehensively preventing constipation of a sow. The pregnant sow feed is prepared from the components: maize, bran, ginkgo biloba leaf slags, garlic residues, sugar beet pulp, soybean hull, DDGS (Distillers Dried Grains With Soluble), bean pulp, soybean oil, mountain flour, calcium hydrophosphate, salt, potassium chloride, gypsum powder, mirabilite, rheum officinale, sodium bicarbonate, choline chloride, 30 percent glycine betaine, microecologics, xylooligosaccharide and 1 percent premix. With the adoption of the pregnant sow feed with the formula, the heat stress of the sow is weakened, the constipation occurrence rate of the pregnant sow is lowered by 20-40 percent, the previous embryo survival rate of the pregnant sow can be increased so as to enable the number born alive of the sow to be increased by 10-18 percent, the sow birth process is shortened, the piglet birth weight is increased by 10-20 percent, and the economic benefit of pig production is increased.

The invention relates to the technical field of feeds, and in particular relates to a formula feed for relieving the heat stress of laying hens. The feed is prepared from the following raw materials in percentage by weight: 60-80 percent of corn flour, 15-20 percent of sorghum bran, 12-15 percent of peanut straw, 6-8 percent of fructus cannabis, 20-22 percent of bean pulp, 12-15 percent of wheat, 5-6 percent of dried yeast powder, 2-3 percent of Chinese chive seed, 2-3 percent of chicken entrails powder, 2-3 percent of zeolite powder, 1-2 percent of loach meal, 2-3 percent of dried banana powder, 1-2 percent of lotus powder, 1-2 percent of pollen pini, 1-2 percent of almond powder, 3-4 percent of dried kiwi powder, 3-4 percent of parslane herb, 3-4 percent of carob bean leaf, a proper amount of table salt and 0.2-0.5 percent of a phagostimulant. The formula feed for relieving the heat stress of laying hens provided by the invention is rich in the types of raw materials and is sufficient in nutrition; raw materials such as the lotus powder, the pollen pini, the almond powder and the like contain rich vitamins and trace elements, so that the phenomenon of heat stress can be well relieved, and the negative influence of the heat stress on the fertility of the laying hens is avoided.

A power supply produces one or more conditioned and scaled output voltages with low noise. The power supply has various components to produce a plurality of higher output voltages from a plurality of taps of a multiplier or multiple isolated outputs. Components include an internal reference voltage circuit or an external voltage that generates a reference voltage and a sine wave power oscillator circuit and resonant circuit that generates an alternating current and voltage. The power supply has a controlled current source circuit connected to the sine wave power oscillator circuit for regulating the power level to the sine wave power oscillator. A control amplifier circuit controls the current level to the controlled current source circuit based on the error between the sampled output and the reference voltage. The resonant transform connected to the sine wave power oscillator circuit generates one or more scaled output voltages on one or more secondary windings. A buffer voltage feedback circuit is connected to an output voltage and the control amplifier circuit for providing a feedback loop to regulate the output voltage.

The invention relates to a feed additive, in particular to a heat-resistant stress feed additive for a cow. The additive comprises the following components in weight portion: 4 to 7 portions of milk veteh, 3 to 6 portions of angelica, 4 to 7 portions of seed cowherb, 2 to 5 portions of licorice, 5 to 8 portions of potassium chloride, 2 to 5 portions of sodium chloride, 1 to 2 portions of magnesium chloride, 2 to 5 portions of sodium bicarbonate, 2 to 5 portions of citric acid and 5 to 10 portions of carrier. The milk veteh, the angelica, the seed cowherb, the licorice, the potassium chloride, the sodium chloride, the magnesium chloride, the sodium bicarbonate and the citric acid are subjected to superfine grinding, filtered by a shaking screen of 100 to 200 meshes, and then mixed with the carrier according to a proportion, stirred evenly, sterilized, cooled, and packaged to prepare the feed additive. The feed additive can improve the heat-resistant stress reaction capability of the cow, enhance immune function of the cow organism, and promote quick rehabilitation of sick livestock, and has the effect of controlling breathing, tonifying the blood, and relaxing vein and promoting milk.

The invention provides a cowshed environment control system and method based on a temperature-humidity index. Monitoring nodes of the system are installed at different positions of a cowshed and upload data to a gateway and then to a cloud server platform for processing. After the processing, a result is sent to a relevant control node, and a relevant device adjusts the environment to keep stabletemperature and humidity of the cowshed. The system solves the problem that the failure in timely environmental control of small-scale cow breeding causes heat stress on the cows and affects the growth of the cows so as to reduce the economic benefit of milk yield of the cows. The system mainly adjusts the environmental factor of the cowshed based on the temperature-humidity index (THI) of the cowshed, obtains the temperature and humidity data by the monitoring nodes placed at different positions of the cowshed, and achieves the statistical analysis and visualization of the environmental dataof each node, thereby controlling the control equipment of the cowshed based on the THI calculated from the environmental data to provide a comfortable environment for the cows and improve the milk quality of the cows.

The invention relates to an exhaust gas cooler (1) having an outer housing (2) and a heat exchanger insert (3) which is arranged therein and has pipes (5) around which exhaust gas flows transversely in an inner housing (4) and through which a coolant of a first cooling circuit (11) flows. It is essential to the invention that the outer housing (2) is cooled by a second cooling circuit (10) which is separate from the first cooling circuit (11). This in particular can reduce the temperature load.

The invention provides an anti-thermal stress compound feed for Wenchang breeding hens and laying hens and a preparation method thereof. The compound feed consists of the components such as corn, soybean oil, soybean meal, fish meal, coconut dregs, rapeseed dregs, mountain flour, calcium hydrophosphate, compound vitamins, compound minerals, coated vitamin c, nutritional supplements and the like. In artificial feeding of Wenchang chicken, the feed for Wenchang breeding hens and laying hens, provided by the invention, can meet the nutrition needs of Wenchang breeding hens, and can adapt to the high-temperature high-humidity climate in the Wenchang breeding hen farming region while reducing the thermal stress of the breeding hens and increasing the laying rate.

A power module substrate allows prompt heat dissipation from a semiconductor device and avoids separation of a ceramic plate and a copper plate at their joint interface and cracks in the ceramic plate. A power module substrate for mounting a semiconductor device includes a ceramic plate, a copper circuit plate on a main surface of the ceramic plate, and a heat dissipation copper plate on a surface of the ceramic plate opposite to the main surface. The copper circuit plate includes at least one first copper circuit plate and at least one second copper circuit plate different from the first circuit board. The first copper circuit plate includes a first portion on which the semiconductor device is mountable, and a second portion outward from the first portion and surrounding the first portion and thinner than the first portion.

The invention provides a complete compound feed for boar, which is prepared from the following raw materials: 50-55% of corn, 10-14% of peeled soybean meal, 13-17% of wheat, 6-10% of soybean hulls, 3-7% of wheat bran, 0.5-1.7% of fermented soybean meal, 1-3% of fish meal, 1-1.7% of calcium hydrophosphate, 0.8-1.4% of limestone powder, 0.1-0.5% of lysine, 0.04-0.06% of methionine, 0.06-0.10% of threonine, 0.01-0.02% of compound enzyme preparation, 0.06-0.1% of probiotics, 0.2-0.4% of sodium bicarbonate, 0.1-0.2% arginine hormone and 0.5-1% of compound premix for boar. The feed provided by the invention has complete nutrition, is easy to digest and absorb, obviously reduces heat stress of the boar, improves volume of semen of each time of ejaculation and sperm motility, increases total number of each time of ejaculation and semen dilution quantity, and improves breeding capacity of the boar.