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102 results about "Volume analysis" patented technology

Automated capillary liquid chromatography small volume analysis system

A system for automatically performing liquid chromatography analysis of low volume liquid chemical samples at nanosecond flow rates using an analysis column that integrates a pre-concentration trapping column and a chromatography separation column terminating at an electrospray nozzle of an online mass spectrometer. The analysis column consists of a capillary having an inside diameter of between 75 and 125 microns packed throughout with a porous bed of micron particles. A branch outlet positioned 10 to 16 centimeters upstream from the nozzle divides the analysis column into an upstream pre-concentration trap and a downstream separation column. An autosampler delivers low volume liquid samples to the upstream inlet via a two-position valve. Feed connections couple the autosampler to upstream inlet when the valve is open to inject a liquid sample into the pre-concentration trap at a maximum loading flow rate in the range from 0.5 to 50 microliters/minute. Thereafter, when the valve closes, it terminates the further injection the sample, and a concentrated portion of the sample then passes though the chromatography separation column at a much slower flow rate between 10 and 1,000 nanoliters per minute. Throughput can be doubled by coupling two such analysis columns to a single autosampler using a ten-port, two position valve. A single column can be supplied through a six port two-position valve.
Owner:PRESIDENT & FELLOWS OF HARVARD COLLEGE

Voice quality-control financial security control system and method

The invention provides a voice quality-control financial security control method. The voice quality-control financial security control method is used for performing cheat-proof check based on customerservice voice information in a financial security control system. The voice quality-control financial security control method comprises the steps of: a, converting the customer service voice information into text information; b, performing quality control of the text information; and c, judging whether a financial payment behaviour corresponding to the customer service voice information has a cheat risk or not at least based on a quality-control processing result. According to the voice quality-control financial security control method provided by the invention, quality control of the text information is carried out; whether the financial payment behaviour corresponding to the customer service voice information has the cheat risk or not is judged based on the quality-control processing result; furthermore, tone or volume analysis of the customer service voice information is carried out; whether the financial payment behaviour corresponding to the customer service voice information hasthe cheat risk or not is further judged; and the voice quality-control financial security control method provided by the invention is powerful in function, high in practicability and simple to operate, and has high commercial value.
Owner:上海洪昇智能科技有限公司

Rail transport passenger flow prediction method based on rail IC card and mobile phone signaling data

The invention relates to a rail transport passenger flow prediction method based on a rail IC card and mobile phone signaling data. The method comprises the following steps of S1, collecting rail transport passenger IC card data information and carrying out OD matching on pretreatment data; S2, carrying out commuting identification, inputting data of working days, grouping according to users, and determining a commuting rule of each user in the working days: when same inbound site and outbound site days of the user reach 50% of total days, determining that a trip is a commuting trip of the user; S3, calculating a rail transport passenger flow, wherein statistics indexes include a site passenger flow, a line passenger flow, a section passenger flow, a transfer passenger flow, a passenger flow OD, a commuting site passenger flow, a commuting line passenger flow, a commuting site OD passenger flow and a commuting line OD passenger flow; S4, carrying out normal state passenger flow volume analysis and holiday passenger flow volume analysis; and S5, carrying out normal state passenger flow volume prediction and holiday passenger flow volume prediction. By using the method, a rail transport passenger flow volume can be accurately predicted, and the method has an important effect on a reasonable compiling transport power configuration scheme, a passenger flow organization scheme and the like.
Owner:CHONGQING UNIV OF POSTS & TELECOMM +1

Method for producing dental restoration elements

The invention relates to a method for producing high-geometric precision elements made from a neutral material. Using different types of prosthetic restoration, said elements are intended to fill the damage caused in teeth by dental caries or tissue alteration having other causes. The inventive elements are also intended to be used to produce high-precision dental crowns or other related dental devices. The method is characterised in that: a model (10), which is designed to fill the missing dental tissue that has been destroyed, is made either in vivo, updating and defining a new volume (2) that is bordered by healthy tissue and having a tapered wall, or in vitro, taking an impression in the mouth of a dental preparation using an impression compound, said impression then being cast in plaster, and updating and defining a new volume (2) using said positive plaster model; the measurements of said model (10) are then taken in 3D using a three-dimensional measuring apparatus (4, 15, 17) with light wavefront analysis and volume analysis which is carried out using shots, a projector (15) being positioned at an angle to a camera (17) and said projector (15) and camera (17) being mechanically and geometrically linked to a revolving platform (18) that is used to support the model by means of a frame (19) in order to obtain good triangulation; the data are processed electronically (12) to remodel the morsels of volume; the files are subsequently modified electronically to determine exactly the desired profile; and the final element to be implanted is machined with a digitally-controlled machine (6, 23, 24, 22).
Owner:米歇尔·瓦莱里 +1

Sorting and tracing system based on Internet of Things for logistics and sorting method thereof

The invention relates to a sorting and tracing system based on Internet of Things for logistics and a sorting method thereof. The sorting and tracing system comprises a workbench assembly, a circulating transmission assembly, a visual analysis assembly, a discharging assembly and an information processing assembly, wherein the workbench assembly is used for feeding packages; the visual analysis assembly is used for bar code scanning and tracing, X-ray security scanning and volume analyzing of the packages; the visual analysis assembly sends scanned data of the packages to a server; the data are processed by the server and then pushed to a user terminal; compared with a linear transmission assembly, the circulating transmission assembly can greatly save the area of a storehouse; and the packages are laterally conveyed by a lateral conveying trolley which is in communication with the server, so that the packages are sorted out by selecting preset discharging slides according to destinations. According to the sorting and tracing system, the whole process is networked while high-efficiency and automatic sorting is achieved, the correct rate of package sorting is guaranteed, and the packages can be tracked in real time by users.
Owner:NANJING YUZHI INTELLIGENT TECH CO LTD
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