摘要:
Methods for purifying rapamycin are described. Methods for measuring particle quality, median particle size, and crystallinity of samples containing rapamycin or a derivative thereof are also provided.
摘要:
A system for controlling the temperature of a reaction mixture comprises at least one heating device for heating the mixture and a power regulator for regulating the amount of power supplied to the heating device. A controller in communication with the power regulator includes program instructions for heating the reaction mixture by setting a variable target temperature that initially exceeds a desired setpoint temperature for the mixture. When the heating device reaches a threshold temperature, the variable target temperature is decreased to the desired setpoint temperature. In another embodiment, the controller includes an adaptive control program for dynamically adjusting the duration or intensity of power pulses provided to the heating device.
摘要:
A thermal property measurement apparatus capable of directly measuring thermal conductivity distribution in a ROI within a target only by measuring the temperature distribution that already exists in the ROI without generating other temperature fields artificially. The thermal property measurement apparatus includes a temperature detector for measuring temperatures at plural positions in the ROI, a distance controller for controlling a distance between the temperature detector and the target, a scanner for changing a relative position therebetween, a stage for putting the object thereon, a recorder for recording measured temperature data, position data and time data, a determination unit for determining whether at least one of thermal conductive phenomena and convection phenomena is dealt with or not, a processor for calculating thermal conductivity distribution in the ROI from the recorded data and temporal changeable references of the thermal conductivity in the ROI, and a controller.
摘要:
Thermally analysis of layers and multiple layer structures used in the semiconductor processing arts is disclosed. A modulated calorimetric analysis may be used to determine a thermal signature that characterizes the chemical properties of a sample of material. The signature may include one or more thermal properties such as heat capacities. The signature may be used to compare and infer the suitability of a material for use in an integrated circuit manufacturing process. A thermal signature for a material that is not known to be suitable for manufacturing integrated circuits may be compared with a thermal signature for a standard material that is known to be suitable in order to determine whether the aforementioned material is suitable. Multiple layer structures may also be analyzed, compared, and inferred, and approaches for determining thermal signatures for any individual layer of the multiple layer structure are disclosed.
摘要:
A micro counter-current flame detector is provided that is both sensitive for photometric and ionization detection for gas chromatography (GC). In the detector, a stainless steel capillary (0.01″ i.d.) supplying oxygen functions as a burner, which supports a compact flame that burns in a counter-flowing excess of hydrogen. In the “micro Flame Photometric Detector” (μFPD) response mode, the background emission level is reduced by over an order of magnitude compared to previous experiments using a fused silica capillary burner, resulting in greatly improved detection limits. The device can successfully operate as both a selective and universal GC detector. Results indicate that this micro counter-current flame method yields comparable performance to conventional Flame Photometric and Flame Ionization Detectors.
摘要:
A method and apparatus for thermally investigating a material by driving the material through a temperature profile composed of isothermal and non-isothermal segments is disclosed, which enable determination of a kinetic component in a measured heat flow signal caused by the exposure of the material to the temperature profile.
摘要:
The invention relates to a device for measuring quantities of heat while simultaneously measuring the evaporation kinetics and/or condensation kinetics of the most minute amounts of liquid in order to determine thermodynamic parameters. The aim of the invention is to determine low thermal outputs, which are absorbed or released by the sample, as well as small differences between thermal outputs with regard to a reference measurement of the same magnitude. To this end, a most minute amount of liquid is located inside a measuring chamber having a constant temperature and air humidity. At least one thermal sensor is provided for repeatedly measuring the thermal radiation emitted from the most minute amount of liquid. A measuring means serves to determine the time-dependent change in the most minute amount of liquid. A computer is assigned to the measuring chamber in order to register, display, evaluate and/or subsequently process the measured values.
摘要:
An analysis apparatus has a measurement head for measuring characteristics of a sample, a calibration conditions file comprising at least one calibration condition obtained by carrying out device calibration for the measurement head in advance, and a measurement head controller for designating one of the calibration conditions within the calibration conditions file. Measurement sequence data comprised of a sequence of measurement steps has measurement conditions for carrying out measurements by the measurement head and the calibration conditions designated by the measurement head controller. A measurement device refers to each measurement step of the measurement sequence data and carries out measurement after inputting the measurement conditions and the calibration conditions for each measurement step to the measurement head.
摘要:
The present invention relates, in general, to thermography and, in particular, to a method of using infrared thermography to monitor physiological and molecular events that elicit a thermogenic response in animals (including humans), plants, tissues, cells and cell-free systems. The present method can be used for screening, identifying, and ranking drug candidates for multiple diseases, disorders and conditions.
摘要:
The invention relates to an automatic sampler device. According to one aspect, the automatic sampler includes a cell having a sample platform and a reference platform; a sample tray; and a sample arm. The sample tray has wells into which sample pans and reference pans are inserted. The geometry of the automatic sampler device permits the sample platform, the reference platform, and the wells in the sample tray to be accessed by the sample arm along a common arc. According to another aspect, the automatic sampler device includes a sample tray with wells, a sample arm, and a gripper device. The gripper device has gripping fingers. The gripping fingers open or close in a manner that tends to center objects grasped by the gripper device. According to another aspect, the automatic sampler device includes a sample tray with wells, a sample arm, and a gripper device. The sample arm has an optical sensor and an electrical sensor. The optical sensor and electrical sensor can be used to detect a pan grasped by the gripper device. According to another aspect, the automatic sampler device includes a sample tray with wells, a sample arm, and a gripper device. The gripper advice is capable of grasping pans of different sizes.