Polymerization method for cholesteric liquid crystal grating pattern

The invention discloses a polymerization method for a cholesteric liquid crystal grating pattern. The polymerization method comprises the following steps of: (1) preparing a liquid crystal cell by a transparent conductive material and aligning the liquid crystal cell; (2) uniformly mixing nematic liquid crystal, chiral material, polymeric monomer and photoinitiator by ultrasonic at a mass ratio of 90-92: 1-3: 6-8: 1-3 to obtain a liquid crystal mixture, wherein the polymeric monomer is liquid crystal polymeric monomer or non-liquid crystal polymeric monomer; (3) heating the temperature of the liquid crystal mixture prepared in the step (2) to be more than a clearing point temperature; injecting the heated liquid crystal mixture into the liquid crystal cell aligned in the step (1), naturally cooling; (4) putting the liquid crystal cell obtained in the step (3) in an exposure system light path, applying alternating voltage on the liquid crystal cell to enable the liquid crystal polymer in ...

Method for preparing hybrid medium of waveguide distributed feedback structure with fluctuant surface

The invention discloses a method for preparing hybrid medium of a waveguide distributed feedback structure with fluctuant surface, which relates to the preparation of a waveguide distributed feedback dye-doped solid laser. The invention provides the method for preparing the hybrid medium of the waveguide distributed feedback structure with the fluctuant surface, which has the advantages of simpleprocess, easy control, low cost, high efficiency and the like. The hybrid medium of the waveguide distributed feedback structure with the fluctuant surface is prepared by the following steps: producing a micro-pattern mother matrix with a one-dimensional or two-dimensional photonic crystal structure with the fluctuant surface; transferring a fluctuant micro-pattern on the surface of the mother matrix onto the surface of a curable polymer elastomer by utilizing a method of surface copying to obtain a soft seal with the micro-pattern; using sol-gel technology to obtain an organic-inorganic hybrid ...

Method for finely removing hydrogen sulfide from natural gas at normal temperature

The invention discloses a method for finely removing hydrogen sulfide from natural gas at a normal temperature. The method adopts the following technical scheme: the natural gas enters a fine desulfurizing tower loaded with activated-carbon fine desulfurizing agent after the processes of drying and gas-water separation, so that H2S in the gas is removed under the effect of the desulfurizing agent; the fine desulfurizing agent is filled in a two-layer or multi-layer manner; the total height-to-diameter ratio of a bed layer is 1.5 to 4.0, the temperature is between normal temperature and 150 DEG C, and the pressure is between normal pressure and 2.5MPa; and through the measurement of a sulfur meter, when the contents of H2S in the natural gas reach 5mg/Nm3 after desulfurization through the desulfurizing tower, the desulfurizing process is completed. The desulfurizing agent uses particles or formed activated carbon as carriers of an activated component (i.e. CuO), and the contents of CuOin ...

Method and device for generating superheated steam from high-salt boiler feed water through stage evaporation

The invention discloses a method and a device, which are used for generating superheated steam from high-salt boiler feed water through stage evaporation, and belongs to the technical field of boiler equipment. According to the method, a boiler drum is divided into a net section and a salt section; the lower part of a salt-section cyclone is connected with the salt section to achieve discharging; the bottom end of the salt-section cyclone is connected with a salt-section down pipe, the salt-section down pipe is connected with a salt-section distribution header, the other end of a salt-section riser pipe is connected with the middle of the salt-section cyclone, a cavity body in the upper part of the salt-section cyclone is connected with a corrugated plate, the top of the salt-section cyclone is connected with a salt-section steam outlet, and the salt-section steam outlet is connected with a pipeline at one end of a super heater; the net-section distribution header is connected with a net-section ...

Electronic device

The invention provides an electronic device. The electronic device comprises a shell, a light-emitting element and a light diffusion structure. Wherein the shell comprises a first light-transmitting hole and a second light-transmitting hole; the light-emitting element is arranged in the shell and is aligned with the first light-transmitting hole. The light diffusion structure comprises a first light diffusion layer and a second light diffusion layer. The first light diffusion layer is arranged between the shell and the light-emitting element and comprises a first semi-transparent area and a first shading area. Wherein the first semi-transparent area corresponds to the first light hole, and the first shading area surrounds the first semi-transparent area. The second light diffusion layer is arranged between the shell and the light-emitting element and comprises a second semi-transparent area and a second shading area. Wherein the second semi-transparent area corresponds to the second light ...

Method of controlling orientation of cholesteric liquid crystal raster

The invention discloses a method of controlling the orientation of a cholesteric liquid crystal raster. The method comprises the following steps: (1) coating photo-alignment materials on the surfaces of conductive layers of conductive substrates; (2) illuminating the surfaces, coated with the photo-alignment materials, of the conductive layers of the conductive substrates through a mask system by linear polarized light, so as to expose; (3) repeating the step (2) for multiple times in different areas of the conductive substrates after different polarization angles are rotated; (4) heating a liquid crystal box made by two exposed conductive substrates in an alignment way to above a clearing point, and then filling a mixture of a nematic phase liquid crystal, a chiral material, a polymeric monomer and an initiator which are heated to above the clearing point, and naturally cooling to enable liquid crystal molecules to re-orientate; (5) adding AC (Alternating Current) voltage to the cooled ...

Siloxane precursor linked with styryl chromophore and its synthesis method

Method for preparing desulfurizer used for removing H2S from natural gas

The invention discloses a method for preparing a desulfurizer used for removing H2S from a natural gas. The desulfurizer prepared by the method uses particles or active carbon as a carrier. The preparation method comprises the following steps: 1, pickling the active carbon serving as the carrier; 2) washing the active carbon serving as the carrier till the active carbon is neutral; 3), soaking the active carbon serving as the carrier in halogen ion-containing aqueous solution, wherein the halogen ion concentration of the soaking solution is 0.01 to 0.5N, the use amount of the soaking solution is 0.1 to 3.0 times the absorption capacity of the active carbon, and the soaking time is 2 to 24 hours; 4), drying the active carbon serving as the carrier to remove moisture in the active carbon; and 5), impregnating the active carbon with solution containing a Cu compound or spraying the solution containing the Cu compound onto the active carbon to load the Cu compound on the active carbon to obtain ...

Maritime wave energy engine

The invention belongs to the technical field of machinery dynamics and solves the technical problem of saving most of fuel consumption of steamships. The key points of the technical proposal for solving the problem include: the wave energy is converted into kinetic energy by using a liquid pressure pump between a back shell of the steamship and a base course of a deck; the energy is delivered through a hydraulic oil pipe to a centrifugal pump impeller arranged at the stern for rotating the impeller; and a propeller rotates due to being coaxial with the impeller in the centrifugal pump to further push the steamship to sail ahead. The main application of the engine includes: 1. being used as an engine of all steamships sailing on sea, therefore, all the steamships on sea using the engine can save most of fuels; and 2. being used for building a power plant on a giant steamship, namely, the energy generated by the maritime wave energy engine is used for generating electricity and simultaneously ...

Electronic device

The invention provides an electronic device. The electronic device comprises a shell, a first light-emitting module, a second light-emitting module and a control unit. The shell is provided with a first light-emitting area and a second light-emitting area. The first light-emitting module comprises a plurality of first light-emitting units arranged in the first light-emitting area in an array mode, and each first light-emitting unit comprises a light-emitting ink layer. The second light-emitting module is arranged in the second light-emitting area. The control unit is electrically connected with the first light-emitting module and the second light-emitting module, and generates a first light-emitting signal and a second light-emitting signal according to an instruction to respectively control the first light-emitting module and the second light-emitting module to emit light.

Hydraulic type dynamic machinery

The present invention discloses novel power machinery which in fact belongs to three invention of an inventive concept: first, hydraulic pumps type engines, which converts pressure energy in cylinder into kinetic energy by replacing piston and bent shaft of internal-combustion engine or steam engine with hydraulic pumps. Second, hydraulic pressure stream speed-changer is coaxial mating centrifugal pump with different diameter respectively. Third, hydraulic pressure stream gearing is a centrifugal pump which is made up of two communicated oil passageway.

Neutral-amphiprotic bond-connection type second order nonlinear optics chromogen and synthesizing process thereof

The present invention discloses a neutrality-amphotericity bonded divalent non-linear optical chromophore group, the structural formula of which is shown in the formula (1). By applying the method of covalent bonding, the donors of two neutral chromophore groups are linked with the receptor of a zwitterionic chromophore group to produce a ramiform chromophore group. The neutrality-amphotericity bonded divalent non-linear optical chromophore group of the present invention is characterized in high hyperpolarizability, low dipole moment and high thermo-decomposing temperature.

Method and device for detecting connectivity of simulation network and electronic equipment

Disclosed are a connectivity detection method, device and equipment for a simulation network, the method being applied to a simulation controller, the method comprising: sending a first indication when issuing a series of configuration data to the simulation network, the first indication being used for starting a detection task on a path from a source node to a destination node in the simulation network, detecting whether a series of configuration data is completely issued or not at a preset moment in the process of issuing the detection messages, and if not, sending a second instruction to the simulation network to instruct the source node and the destination node to continue to execute one or more detection tasks after a batch of detection messages of the current detection task are sent; and counting the total number of the received detection messages sent by the destination node, comparing the total number with the total number of the detection messages sent by the source node, and determining ...

Method for preparing hybrid medium of waveguide distributed feedback structure with fluctuant surface

The invention discloses a method for preparing hybrid medium of a waveguide distributed feedback structure with fluctuant surface, which relates to the preparation of a waveguide distributed feedback dye-doped solid laser. The invention provides the method for preparing the hybrid medium of the waveguide distributed feedback structure with the fluctuant surface, which has the advantages of simple process, easy control, low cost, high efficiency and the like. The hybrid medium of the waveguide distributed feedback structure with the fluctuant surface is prepared by the following steps: producing a micro-pattern mother matrix with a one-dimensional or two-dimensional photonic crystal structure with the fluctuant surface; transferring a fluctuant micro-pattern on the surface of the mother matrix onto the surface of a curable polymer elastomer by utilizing a method of surface copying to obtain a soft seal with the micro-pattern; using sol-gel technology to obtain an organic-inorganic hybrid ...

Neutral-amphiprotic bond-connection type second order nonlinear optics chromogen and synthesizing process thereof

The present invention discloses a neutrality-amphotericity bonded divalent non-linear optical chromophore group, the structural formula of which is shown in the formula (1). By applying the method of covalent bonding, the donors of two neutral chromophore groups are linked with the receptor of a zwitterionic chromophore group to produce a ramiform chromophore group. The neutrality-amphotericity bonded divalent non-linear optical chromophore group of the present invention is characterized in high hyperpolarizability, low dipole moment and high thermo-decomposing temperature.