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47results about How to "Cause stress" patented technology

Method of extracting succinic acid from microorganism fermentation liquor

The invention discloses a method of extracting succinic acid from microorganism fermentation liquor. The method includes the following steps: (1) sodium succinate fermentation liquor obtained through microorganism fermentation is clarified through an ultrafiltration membrane or micro-filtration membrane for removing thalli or other large-particle impurities; (2) the clarified fermentation liquor is acidized through concentrated hydrochloric acid to reach pH ranging from 1 to 3, and the pH is preferentially 2.0; (3) the acidized liquor is subjected to reduced pressure distillation concentration to be with succinic acid concentration at 300-400g/L, and sodium chloride precipitations are removed through solid-liquid separation; (4) the filter liquor obtained in the step (3) is subjected to cooling crystallization under stirring at temperature to be 5 DEG C to obtain succinic acid solids; (5) the filter liquor obtained in the step (4) continues to be concentrated to obtain second sodium chloride precipitations; (6) the residual mother liquor is subjected to cyclic operation according to the step (4) and the step (5) to obtain succinic acid solids and sodium chloride solids; and (7) succinic acid solids and sodium chloride solids are dissolved, discolored and recrystallized to obtain high-purity succinic acid crystals and sodium chloride crystals.
Owner:TIANJIN INST OF IND BIOTECH CHINESE ACADEMY OF SCI

Navigation guide wire through an anatomical structure having branched ducts

A navigation guide wire (1 ) through an anatomical apparatus, for example a vascular system, unusually capable of being safely positioned proximate to bifurcations, comprises: - an elongated body (19) having a proximal end (21 ), a distal end (20), and a longitudinal extension along an axis (x-x) extending at least from said proximal end to said distal end; - at least one first proximal portion (4) having a predetermined first flexural rigidity (KfI ) capable of a first predetermined flexure in at least one plane comprising at least one portion of said longitudinal axis in order to allow a first curvature to said proximal portion when bending stressed, while ensuring a predetermined elastic return in a rectilinear position of the elongated body proximal portion when not subjected to stresses; - at least one second distal portion (3) having a predetermined second flexural rigidity (Kf2), the amount of which is equal to or higher than said first flexural rigidity of said at least one first proximal portion, capable of a predetermined flexibility of said second distal portion in order to obtain a second curvature when bending stressed in at least one plane comprising at least one portion of said longitudinal axis, while ensuring an elastic return to a rectilinear position of said distal portion of said elongated body when not subjected to stress; - at least one intermediate length (6), arranged between said first proximal portion and said second distal portion, having a third flexural rigidity (Kf3) essentially lower than said first flexural rigidity (KfI ) and said second flexural rigidity (Kf2), which allows a predetermined flexibility capable of a third curvature substantially more pronounced compared to said first curvature and second curvature, so as to allow a considerable direction change between said first proximal portion (4) and said second distal portion (3).
Owner:EVR MEDICAL S AR L

Recycling box with compression function

The invention belongs to the field of garbage classification, and relates to a recycling box with a compression function. At present, gaps of recyclable materials which are compressed by the recyclingbox with the compression function are tight, the pressure with the inner wall of the recycling box is increased, and great cleaning difficulty can be caused. In order to solve the problems, the recycling box with the compression function adopts the following technical scheme that a pressure device comprises a hydraulic driving component and a pressure beam, wherein the hydraulic driving componentis arranged on the side surface of a liner, the pressure beam is arranged on the upper part of the liner, a lifting mechanism is further arranged in a cavity of the liner, the lifting mechanism comprises a lifting plate and a lifting chain, the front side of the lifting plate is hinged to the front side of a bottom plate of the liner, the back side of the lifting plate is connected with the lifting chain, and the other end of the lifting chain can be connected to the pressure beam. The recyclable materials are lifted in an inclined direction by the lifting plate and the lifting chain, the pressure of the compressed recyclable materials with the inner wall of the liner is released in a lifting process, and downward sliding force is applied to the recyclable materials through a slope, so that the recyclable materials are easy to take out.
Owner:ZHEJIANG LIANYUN ZHIHUI TECH CO LTD

Breeding method for high-quality beef cattle

The invention discloses a breeding method for high-quality beef cattle. The breeding method comprises the following steps: driving beef cattle to a sports field to do exercise for 40 to 60 minutes at5: 30 every morning, and carrying feeding and grazing; scrubbing and washing the beef cattle with a wormwood extract, and massaging the beef cattle. The breeding method also comprises the steps of calf breeding, breeding in an earlier fattening period, breeding in a medium fattening period, breeding in a later fattening period, timely marketing, etc. According to the invention, the beef cattle isregularly scrubbed, washed and massaged, so skin diseases of the beef cattle are prevented from occurrence; blood circulation of the beef cattle is promoted; the appetite of the beef cattle is improved; through exercise, the development of all functions of the beef cattle is effectively promoted; the food intake of the beef cattle is improved; the resistance of the beef cattle is reinforced; the survival rate of the beef cattle is increased; the toughness and quality of beef are improved; the beef quality and taste of the beef cattle are enhanced; the deposition form of fat in the beef is improved; a feed has scientific and reasonable combination and high nutritional value; gastrointestinal and skeletal development of the beef cattle are effectively promoted; the resistance of the beef cattle is enhanced; the appetite of the beef cattle is mainly met; sufficient nutritional substances are provided for the beef cattle; meanwhile, the beef cattle is not fed on any antibiotic drugs in thefeeding process, so the quality of the beef is guaranteed.
Owner:贵州绿量农业发展有限公司

Pipeline system, venturi fertilizer applicator type selecting method, and applications thereof

The invention discloses a pipeline system, a venturi fertilizer applicator type selecting method, and applications thereof, and belongs to the field of water fertilizer integration. The venturi fertilizer applicator type selecting method comprises following steps: based on on-site factors, an irrigation device matching the on-site factors is selected, wherein the irrigation device comprises certain characteristic parameters, the on-site factors comprises one or a plurality of factors selected from crop, soil type, and irritation rules; based on the characteristic parameters, the working flowamount of the pipeline system and the outlet flow amount of a venturi fertilizer applicator contained by the pipeline system are determined, so that the venturi fertilizer applicator is determined based on the working flow amount of the pipeline system and the outlet flow amount of the venturi fertilizer applicator. The venturi fertilizer applicator type selecting method is capable of solving problems in the prior art that venturi fertilizer applicator type selecting is difficult, and fertilizer absorption is difficult to realize, time and cost are saved greatly, and it is beneficial for waterfertilizer integration high efficiency utilization.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES +1

Squeezing-adjustable crushing device

The invention provides a squeezing-adjustable crushing device and relates to the field of crushing devices. The squeezing-adjustable crushing device comprises a machine shell, crushing rollers and a squeezing mechanism, wherein the crushing rollers are rotatably mounted in the machine shell; the squeezing mechanism comprises squeezing rollers and a squeezing driving structure; the squeezing rollers are arranged on the feeding side of the crushing rollers in parallel at intervals; and the squeezing driving structure is in transmission connection with the squeezing rollers. The device also comprises a squeezing adjusting bracket movably installed on the machine shell, the squeezing rollers are rotationally installed on the squeezing adjusting bracket, and an adjustable squeezing roller gap is formed between the squeezing rollers. A material enters the machine shell and is extruded and righted through the squeezing roller gap of the squeezing rollers; after the material is subjected to preliminary extrusion, the material enters the subsequent crushing rollers to be crushed; and the extruded material is easier to enter a crushing roller gap between the crushing rollers, and the material biting effect of the crushing rollers is effectively improved. The squeezing rollers rotate opposite to each other to achieve extrusion in the squeezing process, the continuity of squeezing is ensured, and the crushing effect of a whole machine is better.
Owner:GUANGZHOU 3E MACHINERY

Kitchen waste treatment system

The invention discloses a kitchen waste treatment system. The system involves a collection system, a buffer pool, a kitchen waste treatment device and an oil-water separation device; the collection system involves closed crushing equipment and a main pipeline, the closed crushing equipment communicates with the main pipeline through a branch pipeline, and an ozone generator is arranged at one endof the main pipeline; the buffer pool comprises a solid-liquid separation tank and a liquid storage tank which are arranged up and down, the other end of the main pipeline communicates with an inlet of the solid-liquid separation tank, and a spiral extrusion rod driven by a driving structure is arranged in the solid-liquid separation tank; and the solid-liquid separation tank is separated from theliquid storage tank through a porous face board arranged at the bottom of the solid-liquid separation tank, an outlet of the solid-liquid separation tank communicates with the kitchen waste treatmentdevice, and the liquid storage tank communicates with the oil-water separation device. By adopting the kitchen waste treatment system with the structure, the problem of odor recirculation caused by the fact that crushed garbage is accumulated in a sewage discharge pipeline is effectively solved, and meanwhile, the resource utilization of the kitchen waste is realized.
Owner:长沙工研院环保有限公司

Method for sealing seal washer of aluminum casing power lithium ion battery and composite glass

ActiveCN108511641ANo problem of corrosion resistance to electrolyteCause stressSecondary cellsCell lids/coversElectrical batteryPhosphate glass
The invention discloses a method for sealing a seal washer of an aluminum casing power lithium ion battery and composite glass. The method comprises the following steps of processing a multi-layer compounded type temperature-resistant washer 130, wherein the temperature-resistant washer 130 contains phosphate glass with anti-hydrofluoric acid corrosion property and glass ceramic powder filler withhigh heat expansion coefficient; enabling the temperature-resistant washer to penetrate through an electrode pole 110, putting onto the upper surface of a bottom plate of the electrode pole, fixing by a sealing clamp, and placing a layered composite sealing glass prefabricated body 140 at the upper surface of the temperature-resistant washer and between a sealing cover plate 120 and the electrodepole; finally, sending an anti-oxidizing aluminum cathode pole assembly into a sealing furnace to seal in air, and sending an anode pole assembly containing a copper or copper alloy bottom plate intoa furnace with atmosphere protection (vacuum or N2 (nitrogen)) to seal, so as to obtain the glass sealing effect with the advantages that compared with the plastic mechanical pressing and sealing technique, the airtightness is good; compared with the ceramic metallic sealing technique, the technology is simple; compared with the plastic sealing technique, the weather-resistant property is good.
Owner:深圳中傲新瓷科技有限公司

Multi-section biological combination control underground petroleum hydrocarbon pollution system

The invention relates to a multi-section biological combination control underground petroleum hydrocarbon pollution system. According to the application of the actual situation of a site, the multi-section biological combination control underground petroleum hydrocarbon pollution system is divided into an underground floating oil recovery system, an underground water pumping enhanced floating oilrecovery system, an underground water flooding enhanced floating oil recovery system, a biological flooding system enhanced floating oil recovery system and a source microbial degradation system. According to the invention, the multi-section biological combination control underground petroleum hydrocarbon pollution system is used in combination with an underground water blocking wall so as to recover floating oil in a stratum and prevent the floating oil from leaking; floating oil recovery equipment is taken as a core, a pneumatic pump or a submersible pump is taken as an auxiliary, and a water flooding washing or biological flooding washing technology is combined, so that various pollution control systems suitable for different pollution sites are formed, the content of a light non-aqueous phase in underground water is reduced as much as possible, and the floating oil in the underground water can be completely recovered; and the pollution control system is utilized to perform risk control on the polluted land parcel to achieve the management, control and restoration goals.
Owner:BEIJING VICTEX ENVIRONMENTAL PROTECTION TECH DEV
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