摘要:
A sewage treatment apparatus comprises a first stage equipment for treating sewage feed to obtain a first effluent and a second stage equipment for treating the first effluent to obtain a second effluent. The second stage equipment comprises a mixer (VI) for mixing the first effluent and a flocculation agent to obtain the first effluent containing the flocculation agent and a flocculation-clarification equipment (VII) comprises a first flocculation reaction chamber (A), into which the first effluent containing the flocculation agent is entered and subjected to flocculation reaction to form a mixture of water and dreg; a first separation chamber (C), into which the mixture of water and dreg from the first flocculation reaction chamber (A) is entered and separated to obtain a first part of the second effluent and a first dreg; and a second separation chamber (D), into which part of the first dreg is entered and separated to obtain a second part of the second effluent and a second dreg.
摘要:
A sewage treatment apparatus comprises a first stage equipment for treating sewage feed to obtain a first effluent and a second stage equipment for treating the first effluent to obtain a second effluent. The second stage equipment comprises a mixer (VI) for mixing the first effluent and a flocculation agent to obtain the first effluent containing the flocculation agent and a flocculation-clarification equipment (VII) comprises a first flocculation reaction chamber (A), into which the first effluent containing the flocculation agent is entered and subjected to flocculation reaction to form a mixture of water and dreg; a first separation chamber (C), into which the mixture of water and dreg from the first flocculation reaction chamber (A) is entered and separated to obtain a first part of the second effluent and a first dreg; and a second separation chamber (D), into which part of the first dreg is entered and separated to obtain a second part of the second effluent and a second dreg.
摘要:
A white LED of a blue and yellow light emitting (structure) layer stacked structure includes a sapphire substrate, or gallium nitride substrate, or silicon carbide substrate, or silicon substrate; a buffer layer formed on the substrate; an N type gallium nitride epitaxial layer formed on the buffer layer; an N doped AlaInbGa1-a-bN quarternary alloy formed on the N type gallium nitride epitaxial layer; a blue light emitting structure layer which contains one or more InxGa1-xN/AlaInbGa1-a-bN quantum well(s) formed on the N type AlaInbGa1-a-bN layer; a yellow light emitting structure layer which contains one or more InyGa1-yN/AlaInbGa1-a-bN quantum well(s) formed on the InxGa1-xN/AlaInbGa1-a-bN quantum well structure; or alternatively, a yellow light emitting structure layer which contains one or more InyGa1-yN/AlaInbGa1-a-bN quantum well(s) being formed on the N type AlaInbGa1-a-bN layer first, and then a blue light emitting structure layer which contains one or more InxGa1-xN/AlaInbGa1-a-bN quantum well(s) being formed on the InyGa1-yN/AlaInbGa1-a-bN quantum well(s) structure; a P type Al0.1Ga0.9N and a P type GaN cap layer formed on the top.
摘要:
The disclosure discloses a method for positioning a mobile terminal, which comprises: a server sends a push notification to a mobile terminal; the mobile terminal performs self-positioning after receiving the push notification, to acquire geographical position information regarding the mobile terminal, and sends the geographical position information to the server; the server receives and displays the geographical position information sent by the mobile terminal. The disclosure also discloses a system for positioning a mobile terminal for implementing the method for positioning a mobile terminal and a mobile terminal. With such method and device, the server can be used to send a push notification to the mobile terminal after a user finds that the mobile terminal is lost. The mobile terminal positions geographical position information thereof and sends the geographical position information to the server to help the user retrieve the mobile terminal.
摘要:
The present disclosure relates to a light emitting diode packaging structure and the method of manufacturing the same. The light emitting diode packaging structure has an insulating substrate with through holes formed on each side of the upper surface thereof, the through hole being filled with conductive metal. Additionally, a n-type layer, an active layer, a p-type layer, an insulating layer and a p-type electrode are formed on the insulating substrate. The structure further may include a n-type electrode provided on a side of the upper surface of the n-type layer; a first back electrode provided at one side of the back surface of the insulating substrate; a second back electrode provided at the other side of back surface of the insulating substrate; and an optical element packaged on the base substrate.
摘要:
The present disclosure relates to a light emitting diode packaging structure and the method of manufacturing the same. The light emitting diode packaging structure comprises: an insulating substrate with through holes formed on each side of the upper surface thereof, the through hole being filling with conductive metal; a n-type layer formed on the insulating substrate with a hole, which is filled with conductive metal; an active layer provided on the n-type layer; a p-type layer formed on the active layer; an insulating layer configured on one side of the n-type layer, the active layer and the p-type layer and to cover part of the upper surface of the p-type layer; a p-type electrode configured to cover the insulating layer and part of the upper surface of the p-type layer; a n-type electrode provided on a side of the upper surface of the n-type layer and configured to connect with the conductive metal in the through hole in the insulating substrate; a first back electrode provided at one side of back surface of the insulating substrate, the first back electrode connecting with the p-type electrode through the conductive metal in the through hole in the insulating substrate; a second back electrode provided at the other side of back surface of the insulating substrate, the second back electrode connecting with the n-type electrode through the conductive metal in the through hole in the insulating substrate; an optical element packaged on the base substrate, thereby finishing a device.
摘要:
Fabrication method of GaN power LED with electrodes formed by composite optical coatings, comprising epitaxially growing N—GaN, active, and P—GaN layers successively on a substrate; depositing a mask layer thereon; coating the mask layer with photoresist; etching the mask layer into an N—GaN electrode pattern; etching through that electrode pattern to form an N—GaN electrode region; removing the mask layer and cleaning; forming a transparent, electrically conductive film simultaneously on the P—GaN and N—GaN layers; forming P—GaN and N—GaN transparent, electrically conductive electrodes by lift-off; forming bonding pad pattern for the P—GaN and N—GaN electrodes by photolithography process; simultaneously forming thereon bonding pad regions for the P—GaN and N—GaN electrodes by stepped electron beam evaporation; forming an antireflection film pattern by photolithography process; forming an antireflection film; thinning and polishing the backside of the substrate, then forming a reflector thereon; and completing the process after scribing, packaging and testing.
摘要:
This invention relates to a method for manufacturing a GaN based LED of a back hole structure, and the method comprises: epitaxially growing an N type GaN layer, a multi-quantum wells emitting active region and a P type GaN layer in turn on an insulation substrate made of sapphire or other materials; etching the N type GaN layer by photoetching, and forming a P type ohmic contact electrode and an N type ohmic contact electrode; scribing the chip to divide the dies on the epitaxial chip into individual die; forming a SiO2 insulation isolation layer on both sides of the silicon chip, forming a metal electrode on a face side, and forming a back hole pattern on a back side; forming a back hole; forming a bump pattern for plating on the face side of the silicon chip by thick resist photoetching; forming a layer of alloy with low melting point on the back side of the silicon chip, thus forming a base; on the back side of the base, directly attaching the base to a heat sink of a housing; bonding the die with the face side of the base through the metal bumps, leading an N electrode of the LED from the metal electrode formed on the face surface of the silicon chip, and leading a P electrode of the LED from the back side of the heat sink of the housing.
摘要:
This invention relates to a method for manufacturing a GaN based LED of a back hole structure, and the method comprises: epitaxially growing an N type GaN layer, a multi-quantum wells emitting active region and a P type GaN layer in turn on an insulation substrate made of sapphire or other materials; etching the N type GaN layer by photoetching, and forming a P type ohmic contact electrode and an N type ohmic contact electrode; scribing the chip to divide the dies on the epitaxial chip into individual die; forming a SiO2 insulation isolation layer on both sides of the silicon chip, forming a metal electrode on a face side, and forming a back hole pattern on a back side; forming a back hole; forming a bump pattern for plating on the face side of the silicon chip by thick resist photoetching; forming a layer of alloy with low melting point on the back side of the silicon chip, thus forming a base; on the back side of the base, directly attaching the base to a heat sink of a housing; bonding the die with the face side of the base through the metal bumps, leading an N electrode of the LED from the metal electrode formed on the face surface of the silicon chip, and leading a P electrode of the LED from the back side of the heat sink of the housing.
摘要:
The present invention relates to an apparatus for biological sewage treatment, including a concentrated mixed liquor driving device that uses a gas to drive a concentrated mixed liquor to flow. The present invention further relates to a method for biological sewage treatment, including a step of using a gas to drive a concentrated mixed liquor to flow. The gas can be an aeration gas, especially an oxygen-containing aeration gas after aeration treatment. The apparatus and method of the present invention can sufficiently utilize the energy and oxygen of the aeration gas, so that the energy consumption and maintenance cost of whole apparatus are reduced, biological sewage treatment effects are improved, and sludge floating is prevented. In addition, the apparatus of present invention has advantages of high performance, energy saving, high reliability, and good movability.