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647results about How to "Avoid loss" patented technology

Optical mode transformer, in particular for coupling an optical fiber and a high-index contrast waveguide

A semiconductor-based optical mode transformer (100, 100′, 100″) is described for coupling an optical mode of an optical fiber (3) with an optical mode of a waveguide (2a). The optical mode transformer comprises a first waveguide (1a) extending along a first main longitudinal direction (Z) and including an end facet (9) being apt to be coupled to the optical fiber (3), said first waveguide (1a) including a first core (1) and a first cladding (6,4) and having a first refractive index contrast (Δn1); and a second waveguide (2a) arranged with respect to said first waveguide so as to realize an evanescent optical coupling with said first waveguide (1a), the second waveguide (2a) comprising a second core (2) and a second cladding (4,7) and having a second refractive index contrast (Δn2). In addition, the second core (2) comprises a tapered region (13,13′), in at least a portion of which said evanescent coupling takes place. The first core (1) of the first waveguide (1a) and the second core (2) of the second waveguide (2a) are separated by a gap (g). The thickness (T2) of said second waveguide (2a) is comprised between 120 nm and 180 nm and the second refractive index contrast Δn2 is greater than 40%, or the thickness (T2) of said second waveguide (2a) is comprised 100 nm and 400 nm and the second refractive index contrast Δn2 is comprised between 18% and 30%. The first refractive index contrast is smaller than the second refractive index contrast.
Owner:GOOGLE LLC +1

Method and system for preventing thievery of mobile phone with fingerprint device

ActiveCN103634477APrevent leakageAvoid lossSubstation equipmentSecurity arrangementInternational mobile subscriber identityFingerprint
The invention discloses a method for preventing thievery of a mobile phone with a fingerprint device. The method includes steps of requesting a user to input fingerprint information after replacement of a SIM (subscriber identity module) card is detected; extracting fingerprint features from acquired fingerprint images and comparing the fingerprint features to preset fingerprint templates to authenticate identification of a subscriber; enabling the mobile phone to copy and encrypt file information of the subscriber if the user fails identification authentication, and transmitting the file information and the fingerprint images to a remote server in a background manner; transmitting a subscriber thievery preventing request to the subscriber after the remote server receives the subscriber thievery preventing request; enabling the subscriber to decrypt the received file information and the received fingerprint images which are transmitted from the remove server, and searching identification information of the user by the aid of the fingerprint images. The method has the advantages that the identification of the subscriber of the mobile phone is authenticated by the aid of fingerprints, the fingerprint images of the user, an IMSI (international mobile subscriber identity) number and mobile phone state and position information are acquired when the user fails the fingerprints authentication, the file information of the mobile phone is encrypted and copied, accordingly, leakage and loss of the important and private information of the subscriber can be prevented, and clue information for finding the mobile phone can be collected.
Owner:SHENZHEN ARATEK BIOMETRICS TECH CO LTD

Express item collecting and dispatching method of logistics

The invention discloses an express item collecting and dispatching method of logistics. The express item collecting and dispatching method comprises the following steps that express item posting information is recorded in a database system, and a two-dimensional code and a freight note are generated; the collected express item is scanned, and the two-dimensional code is sent to a client at the same time; the express item is dispatched and scanned, and the express item dispatching information is sent to the database system; a self-service express cabinet sends an express item storage request and scans and sends the two-dimensional code to the database system, the database system controls the self-service express cabinet to be opened, and after the express item is stored, the database system sends express item picking reminding information to the client; the self-service express cabinet sends an express item picking request and scans and sends the two-dimensional code of the client to the database system, and the database system controls the self-service express cabinet to finish express item picking; if the express item is not picked, the database system regularly sends the express item picking reminding information to the client, if the express item is not picked within the set period, the database system informs a postman to pick back the parcel and try to dispatch the parcel, and the express item is withdrawn if dispatching still fails. The dispatching speed is high, self-service express item picking is achieved, personal information of the client can be prevented from being leaking, safety is high, and operation is easy.
Owner:GUANGXI UNIV

Optical rotary adaptor and optical tomographic imaging apparatus using the same

An optical rotary adapter is featured by including: a fixed side optical fiber which is fixedly supported by a fixed sleeve and which has an end surface inclined with respect to a plane perpendicular to the optical axis of the optical fiber; a fixed side collimator lens which is arranged to be separated from the inclined end surface of the fixed side optical fiber by a predetermined interval; a rotation side optical fiber which is fixedly supported substantially at the center of a rotatably supported rotary cylinder, which is arranged to face the fixed side collimator lens, and which has an end surface inclined with respect to a plane perpendicular to the optical axis of the fixed side collimator lens; a rotation side collimator lens which is fixedly supported by the rotary cylinder, and which is arranged between the fixed side collimator lens and the rotation side optical fiber so as to be separated from the inclined end surface of the rotation side optical fiber by a predetermined interval; a second luminous flux optical fiber which guides a second luminous flux having a function different from that of a first luminous flux as a measuring light beam to the inside of the fixed sleeve; and a multiplexing device which is provided between the fixed side collimator lens and the rotation side collimator lens, and which multiplexes the first luminous flux with the second luminous flux.
Owner:FUJIFILM CORP

Integrated flue gas desulfurizing and denitrating purification system and purification technology for same

The invention relates to an integrated flue gas desulfurizing and denitrating purification system and a purification technology for the same, in particular to an integrated flue gas desulfurizing and denitrating purification system and purification technological processes for the same for coal firing industry. The integrated flue gas desulfurizing and denitrating purification system comprises a flue gas input system, a flue gas absorption and purification system, a purified flue gas exhaust system, a flue gas oxidizing system, a concentrating system, a slurry treatment system, a slurry oxidizing system and an absorbent delivery system, wherein the flue gas input system, the flue gas absorption and purification system and the purified flue gas exhaust system are mutually connected, the flue gas oxidizing system and the concentrating system are connected with the flue gas input system, the slurry treatment system is connected with the concentrating system, and the slurry oxidizing system and the absorbent delivery system are connected with the flue gas absorption and purification system. The purification technology is a comprehensive treatment technology including the processes of oxidizing flue gas, purifying and absorbing the oxidized flue gas and purifying after-products. The system is effectively integrated, simple, efficient and environment-friendly integrated flue gas desulfurization and denitration are realized, economic cost is greatly reduced correspondingly, and the purification technology is suitable for popularization and application in the field of purification and treatment of tail gas with sulfur and nitrogen oxides serving as main pollutants in coal firing boilers and other industries.
Owner:BEIJING ZHONGNENG NUOTAI ENERGY SAVING & ENVIRONMENTAL PROTECTION CO LTD

Method for preparing dental pulp mesenchymal stem cells and establishing dental pulp mesenchymal stem cell bank and cell resuscitation method

InactiveCN104630141AHigh cell lossAvoid lossDead animal preservationSkeletal/connective tissue cellsMedullary cavityDigestion
The invention provides a method for preparing dental pulp mesenchymal stem cells and establishing a dental pulp mesenchymal stem cell bank and a cell resuscitation method, relating to a method for preparing a stem cell bank and a cell resuscitation method. The method comprises the following steps: opening the dental pulp cavity, carrying out primary culture on the dental pulp tissue by a pancreatin substitute half-digestion process, carrying out subculture to obtain dental pulp mesenchymal stem cells, carrying out biological nature detection on the prepared dental pulp mesenchymal stem cells, carrying out amplification culture, cryopreserving, and establishing the dental pulp stem cell bank. The pancreatin substitute half-digestion process for digesting the dental pulp tissue is different from the traditional digestion process; the pancreatin substitute is low in price and easy to purchase; and the half-digestion process effectively prevents the cells from loss and enhances the cryopreservation quantity of the cells. By using teeth as the tissue material source for preparing the mesenchymal stem cells, the invention provides opportunities for preserving dental mesenchymal stem cells.
Owner:天晴干细胞股份有限公司

Remote measurement target tracking method remote measurement target tracking system

The present invention discloses a remote measurement target tracking method and a remote measurement target tracking system. The method comprises the following steps of S1 using a remote measurement emission antenna to real-timely emit a remote measurement signal data packet containing the target position information to the ground, receiving and processing a remote measurement data packet to obtain the target position information; S2 obtaining the antenna position information of a remote measurement reception antenna; S3 processing the target position information and the antenna position information to calculate an azimuth angle and a pitch angle of a remote measurement target relative to a remote measurement antenna, generating a corresponding antenna servo orientation control instruction and a pitching control instruction to guide the remote measurement reception antenna to align at the remote measurement target. The remote measurement transmission speed is faster, so that the target position information of high frequency and fast update can be provided, and accordingly, the tracking precision of the remote measurement antenna can be improved, and the target can be avoided losing. In addition, the tracking method facilitates keeping the working states of the conventional remote measurement equipment and saves the cost on the condition of not changing the airborne equipment.
Owner:SHANGHAI INST OF ELECTROMECHANICAL ENG
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