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In this work, a novel ultrasonic linear motor is proposed. The proposed motor has two driving feet and a simple structure. The torque applied to the motor is converted into a normal preload between the driving feet and the mover, avoiding the use of a large preloading mechanism. The vibration characteristics of the motor are studied by the finite element analysis method. Finally, the prototype is fabricated. The experimental system is established, and a series of experiments has been carried out to evaluate the performance of the motor in terms of maximum velocity and maximum output force, and the feasibility of the proposed motor is verified. The experimental results show that the maximum no-load velocities of the motor moving to the right and left are 85.2 mm/s and 76 mm/s, respectively, and the maximum output force is 1.96 N. The numerical simulation results show that the stator of the motor can be used as a displacement amplifying structure, which can effectively amplify one or two orders of magnitude deformation of the piezoelectric stack.Thin film thermocouples (TFTCs) are designed by finite element analysis and fabricated on the flexible substrate (polyimide) based on radio frequency magnetron sputtering technology, which can be used to measure the temperature of the curved surface. Various novel structures of TFTCs with several multi-junctions are designed to improve the stability and the reliability of measurement. The characteristics of its thermoelectric output are simulated by software. As the temperature range varies between 10 °C and 200 °C, the electromotive force behavior experiments show that the average Seebeck coefficient of the TFTCs can reach 25.8 µV/°C, the resolution of sensor is less than 0.1 °C, and the temperature drift is only 1.3%, 1.2%, 1.0% at 84 °C, 110 °C, and 142 °C, respectively. The maximum drift rate of TFTCs is 0.234 °C/min at 142 °C. The flexible TFTC temperature sensor shows great advantages in sensitivity, stability, reliability resolution, and measuring range.We review the rapid recent progress in single-photon sources based on multiplexing multiple probabilistic photon-creation events. Such multiplexing allows higher single-photon probabilities and lower contamination from higher-order photon states. We study the requirements for multiplexed sources and compare various approaches to multiplexing using different degrees of freedom.Since its invention in 1999, the optical centrifuge has become a powerful tool for controlling molecular rotation and studying molecular dynamics and molecular properties at extreme levels of rotational excitation. This technique has been applied to a variety of molecular species, from simple linear molecules to symmetric and asymmetric tops, to molecular ions and chiral enantiomers. Properties of isolated ultrafast rotating molecules, the so-called molecular superrotors, have been investigated, as well as their collisions with one another and the interaction with external fields. The ability of an optical centrifuge to spin a particular molecule of interest depends on both the molecular structure and the parameters of the centrifuge laser pulse. An interplay between these two factors dictates the utility of an optical centrifuge in any specific application. Here, we discuss the strategy of assessing and adjusting the properties of the centrifuge to those of the molecular rotors and describe two practical examples of optical centrifuges with very different characteristics, implemented experimentally in our laboratory.We present the first measurements of Hall conductivity utilizing a torque magnetometry method. A Corbino disk exhibits a magnetic dipole moment proportional to Hall conductivity when voltage is applied across a test material. This magnetic dipole moment can be measured through torque magnetometry. The symmetry of this contactless technique allows for the measurement of Hall conductivity in previously inaccessible materials. Finally, we calculate a low-temperature noise bound, demonstrate the lack of systematic errors, and measure the Hall conductivity of sputtered indium tin oxide.The energy spreads of ion beams generated from a penning ionization gauge-type ion source with electromagnets were measured using a parallel electrostatic analyzer. Glycyrrhizin mouse The ion source was developed to be installed in a mega-electron volt (MeV) compact ion microbeam system. A gaseous ion beam of expectedly high brightness and narrow energy spread was generated from the ion source to form a microbeam. To produce such an ion beam, a high-density plasma with a small volume was generated using a strong magnetic field in the ion source. The beam energy spread width was of particular importance because it forms an ion microbeam by reducing the chromatic aberration at a focusing lens. In this report, the energy spread was investigated by changing the parameters of the ion source, e.g., extraction voltage, excitation current of electromagnets, vacuum, and anode voltage. The investigation showed that spread widths are influenced by the extraction voltage, vacuum, and anode voltage. The minimum width of ∼5.0 ± 0.1 eV was obtained at a beam energy of 200 eV. This value is acceptable for the MeV compact ion microbeam system.Pickup spectroscopy is a means of determining the abundance, mass, charge, and lifetime of ions oscillating in electrostatic ion beam traps. Here, we present a framework for describing the harmonic height distribution of the Fourier transform of the pickup signal and discuss the importance of the pickup positioning, bunch dynamics, and pickup width on the harmonic height distribution. We demonstrate the methodology using measurements from a newly constructed electrostatic ion beam trap.We present an alternative numerical method to the Abel inversion technique, which can be applied to complex non-symmetrical systems. A comparison with the Abel inversion algorithm was conducted. For benchmarking, the method was applied to a synthetic trace representing a plasma waveguide characterized by a constant parabolic density profile. Furthermore, the temperature and refractive index of a plume of hot air surrounding a non-cylindrical soldering iron were retrieved. Temperatures between 50 °C and 200 °C were successfully retrieved within the instrument precision. The proposed method allows robust and fast data retrieval while maintaining the accuracy and resolution of well-known methods, as Abel inversion.
My Website: https://www.selleckchem.com/products/Glycyrrhizic-Acid.html
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