The inventors discovered that viscosity of a protein solution can be estimated by measuring the apparent particle size or apparent molecular weight by a small angle X-ray scattering (SAXS) method or X-ray solution scattering method, which enables measurement of small amounts of samples, and then correlating those measurement results with viscosity of the protein solution.

A system for measuring an angle of repose includes an angle of repose device that holds a granular material, and a portable smart device having a camera and a processor. The angle of repose device is configured to open a slit to allow a first part of the granular material to remain in an upper chamber while a second part of the granular material moves freely, due to gravity, from the upper chamber to a lower chamber. The portable smart device uses the camera to take a digital image of the first part and the second part of the granular material and uses an app installed on the processor to calculate an internal angle of repose and an external angle of repose.

To accurately analyze measurement target particles in each specimen, while reducing variation in dispensing amounts of specimens which is caused by different viscosities of the respective specimens. A sample preparing apparatus 1 includes: a measurement section 2 configured to measure a specimen obtained from a specimen container 10, and obtain viscosity information relating to viscosity of the specimen; a sample preparation section 3 configured to prepare a measurement sample by aspirating the specimen from the specimen container 10, discharging the specimen into a mixing container 11, and mixing the specimen with a labeling substance in the mixing container 11; and a control section 4 configured to determine, on the basis of viscosity information, at least one of an aspiration condition for aspirating the specimen and a discharge condition for discharging the specimen, and control the sample preparation section 3.

A method is provided for characterizing fluid flow in a pipe where the fluid includes a drag reducing polymer of a particular type and particular concentration. A computational model is configured to model flow of a fluid in a pipe. The computational model utilizes an empirical parameter for a drag reducing polymer of the particular type and the particular concentration. The computational model can be used to derive information that characterizes the flow of the fluid in the pipe. The empirical parameter for the particular type and the particular concentration of the drag reducing polymer can be identified by solving another computational model that is configured to model turbulent Couette flow in a Couette device for a fluid that includes a drag reducing polymer of the particular type and the particular concentration. The empirical data needed for identification of the empirical parameter are obtained from Couette device experiments.

The present invention provides a device and a method for measuring overburden of injected gas in cyclic gas injection development of condensate gas reservoir. The device comprises sand packed model and temperature control system. The temperature control system is nested outside the sand packed model. The sand packed model comprises sand pack cell, four gas inlets, four gas outlets, bracket, direction control component, rotating shaft, upper cover, lower cover, fixing bolts, two top pressuring inlets, pressure transmission rods, pressure transfer piston and multiple gas sampling ports. The sand pack cell can be filled with quartz sand of different particle size and composition, and the angle of the whole device is adjusted by the direction control component.

A system for measuring an angle of repose includes an angle of repose device that holds a granular material, and a portable smart device having a camera and a processor. The angle of repose device is configured to open a slit to allow a first part of the granular material to remain in an upper chamber while a second part of the granular material moves freely, due to gravity, from the upper chamber to a lower chamber. The portable smart device uses the camera to take a digital image of the first part and the second part of the granular material and uses an app installed on the processor to calculate an internal angle of repose and an external angle of repose.

A method of measuring the viscosity of a resin in a bottom-up additive manufacturing apparatus, includes the steps of: (a) providing an additive manufacturing apparatus including a build platform and a light transmissive window, said build platform and said window defining a build region there between, with said window carrying a resin; (b) advancing said build platform and said window towards one another until said build platform contacts said resin; (c) detecting the force exerted on said build platform by said resin; and (d) generating in a processor a viscosity measure of said resin from said detected force.

A magnetic pole part, a fiber-reinforced material, a test apparatus therefor, and a control method for the test apparatus. The test apparatus comprises: a container provided with an adhesive agent container therein for containing an adhesive agent; a positioning member for positioning a member to be tested inside the container and partially inside the adhesive agent container; an adhesive agent heating member 912) for heating the adhesive agent; and an adhesive agent temperature sensor for measuring the temperature of the adhesive agent; a controller for turning on or off the adhesive agent heating member according to a temperature signal detected by the adhesive temperature sensor so as to keep the adhesive agent in the adhesive agent container at a preset temperature.

Methods and systems for predicting properties of well bore treatment fluids are disclosed. An embodiment includes a method of predicting fluid properties comprising: determining an operational window for a well bore fluid system; collecting data at vertices of the operational window; and developing a model comprising predicted properties for a plurality of data points within the operational window, wherein developing the model uses Barycentric interpolation.

Provided herein are high-throughput methods for identifying a candidate antibody based on viscosity of the candiate antibody.