31results about How to "Low cost feature" patented technology

A doorframe suspension type parallel-bar exercising apparatus includes two smoothly arched suspension bars connected in parallel by connection bars for hanging on the top rail of a doorframe, and a bearing bar transversely connected to the smoothly arched suspension bars for stopping at the inner side of the opposing left and right uprights of the doorframe, and two grips respectively affixed to the rear ends of the smoothly arched suspension bars.

A doorframe suspension type parallel-bar exercising apparatus includes two smoothly arched suspension bars connected in parallel by connection bars for hanging on the top rail of a doorframe, and a bearing bar transversely connected to the smoothly arched suspension bars for stopping at the inner side of the opposing left and right uprights of the doorframe, and two grips respectively affixed to the rear ends of the smoothly arched suspension bars.

The invention discloses a forming device of metal ions via passing through deposition and bilateral constraint. The forming device consists of an outer mold, grinding material particles, a grinding wheel base body or inner mold, an electroplating bath, an electroplating liquid, a power supply, a control system of the power supply and an electroplating metal material, wherein the grinding wheel body or inner mold is placed in the outer mold; an inner space is formed by the inner surface of the outer mold and the outer surface of the grinding wheel base body or inner mold; the electroplating metal material is arranged outside the outer mold and connected with the anode of the power supply; the grinding wheel base body or inner mold is connected with the cathode of the power supply; and the grinding wheel base body or inner mold is integrally connected with the outer mold through a clamp. After electrification, the metal cations on the electroplating metal material swim through the electroplating liquid and pass through the micro pores on the outer mold to reach the outer surface of the grinding wheel base body or inner mold under the action of an electric field, so as to attach a metal electroplating layer on the grinding wheel base body or inner mold. The invention also discloses a forming method of metal ions via passing through deposition and bilateral constraint, and the method comprises eight steps. The forming device and method have practical value in the electroplating and abrasive machining fields.

The invention discloses modified nylon 6 / thermoplastic polyurethane composite. The composite comprises, in parts by weight, 85-95 parts of nylon 6, 5-15 parts of thermoplastic polyurethane, 1-5 parts of EBA-g-MAH (ethylene-butyl acrylate-grafted maleic anhydride), 0.6-0.8 parts of a lubricating agent, 0.2-0.3 parts of an antioxidant, 0.3-0.5 parts of a plasticizer and 0.2-0.3 parts of a coloring agent. The invention provides a preparation method of the composite. Firstly, a grafted product, namely, EBA-g-MAH, is prepared, nylon 6, thermoplastic polyurethane, EBA-g-MAH, the lubricating agent, the antioxidant, the plasticizer and the coloring agent are uniformly mixed in a mass ratio, the mixture is extruded and granulated through a twin-screw extruder and subjected to injection molding through an injection molding machine, and the compatibilizer EBA-g-MAH modified nylon 6 / thermoplastic polyurethane composite is obtained. The composite has the characteristics of excellent mechanical performance, good processibility and low cost.

The invention belongs to the field of lithium ion batteries, and in particular relates to a nickel-manganese-titanium composite material and a preparation method and application thereof. The nickel-manganese-titanium composite material includes an inner core and a cladding layer covering the surface of the inner core. The inner core is composed of nickel-manganese-titanium oxide, and the three elements of nickel, manganese and titanium are distributed in a gradient in the inner core. The content of manganese and manganese gradually decreases from the inside to the outside along the radial direction of the core, and the content of titanium gradually increases from the inside to the outside along the radial direction of the core, and the composition of the cladding layer is lithium titanate. The lithium-ion battery corresponding to the nickel-manganese-titanium composite material provided by the invention has higher capacity and cycle stability.

The invention discloses a wireless power cloudization method and system based on a large-scale antenna array and relates to the technical field of wireless communication. The method comprises the steps that an idle energy factor is established and a calculation formula of the idle energy factors of antennas in the large-scale antenna array is defined; the antennas in the large-scale antenna arrayupload state information to a cloud server; the cloud server calculates the idle energy factor of each antenna according to the state information and selects and adds the appointed number of antennasto an antenna resource pool; the cloud server dynamically selects the antennas capable of being occupied according to a scheduling algorithm based on the idle energy factors; and the antennas capableof being occupied are registered in the cloud server, the cloud server allocates power resources to the registered antennas according to use demands until the antennas are used completely, and then the power resources are released. According to the method and the system, the cloudization of a wireless network power domain is realized, and the contradiction between the continuous increase of the number of various kinds of business and the shortage of non-renewable resources in a network is effectively solved.

The invention provides a guanidine hydrochloride-containing hydrophilic chain extender monomer, wherein the structural general formula is shown in the specification, where R represents alkyl with 1-15hydrogen atoms or carbon atoms, m is an integer between 0 and 15, n is an integer between 0 and 15, and r is an integer between 1 and 20. The invention also discloses a preparation method of the hydrophilic chain extender monomer. The invention further provides a guanidine hydrochloride-containing waterborne fluorinated polyurethane nano emulsion and a preparation method, wherein the preparationmethod comprises the following steps: preparing an antibacterial hydrophilic chain extender through a reaction between guanidine hydrochloride and dihydroxyl-containing carboxylic acids; introducing the antibacterial hydrophilic chain extender into a waterborne polyurethane preparation system to obtain a waterborne fluorinated polyurethane emulsion; finally, under the action of a water-soluble persulfate catalyst, introducing an acrylic fluorine-containing monomer to obtain a waterborne fluorinated polyurethane nano emulsion with particle size of 25-70nm. The preparation method provided by theinvention is simple and environment-friendly and suitable for industrial production.