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Applying the multi-dynamic theory, a dynamic model of the upper-equipment mounting system of some vehicle is established. An optimization model for the upper-equipment mounting system is constructed, in which the driver's vertical acceleration RMS value and upper equipment vertical acceleration, pitch...

To obtain high-quality output voltage, a multi-loop control for UPS inverter is proposed. On the basis of double closed-loop control, repetitive control is introduced to improve total harmonic distortion (THD) of the output voltage. Also, RMS control is introduced to increase steady-state accuracy of...

Extensive study has taken place concerning the reduction of wind-induced vibrations in tall buildings. One method to mitigate this effect adds an auxiliary damping device to the building to increasing the damping ratio of the primary structure, that reducing wind-induced vibration. In the present study,...

Millisecond pulsar can generate another type of time scale that is totally independent of atomic time scale, because physical mechanisms of pulsar time scale and atomic time scale are quite different. Usually pulsar timing observation isn't even sampled, and their data set is sparse, So we use cubic...

This paper presents the 4~6GHz 6-bit MMIC digital attenuator with low phase shift. Phase compensation techniques were used in the MMIC design to reduce the phase shift. This attenuator is fabricated with 0.25æm GaAs PHEMT process. Simulation results of the developed MMIC chips in the 4~6GHz show that...

Stable and uniform sound distribution is a key factor in high precise volume determination of solid material especially for mass standards. A numerical study is carried out to study the distribution and uniformity of sound pressure. The FEM simulation results show that the sound pressure distribution...

This report presents the application of a Tuned-Mass Damper system to effectively reduce external vibrations experienced by the driver, caused by the random vibrations of the track conditions. The aim of this study is to investigate the impact of a tuned mass-damper (TMD) system on external vibrations...

The surface figure precision of the primary mirror in a large-aperture telescope is a key factor to the imaging quality. With the finite-element software, the finite-element model is set up base on optimization of the lateral support system. When the primary mirror is supported in the vertical position,...

Hydraulic suspension is a common way to support 900t Tyre Hosting Girder Machine. In this paper, the hydraulic suspension system modeling is established under ADAMS/Hydraulics environment. Dynamics simulation analysis is performed on two kinds of road, Class of B and C. Comparing the displacement and...

This research project explores building a speech emotion recognition system using Convolutional Neural Networks (CNNs). We leverage multiple datasets like RAVDEESS, Crema-D, TESS, and SAVEE, which contain audio recordings labeled with emotions (happy, sad, angry, etc.). After meticulously converting...

Halal tourism is growing segment that represents a potential niche. It a field of study that is still in its very early stages, however, on a practical level, the number of halal products and services is starting to increase worldwide. This study aimed to analyze the index and the sustainability status...

Minimum Variance Distortionless Response(MVDR) algorithm for wideband coherent signals based on data reconstruction is proposed.Based on the sampling theorem, the output of different array elements at the same time is taken as the sampling of the continuous line array, and the data of the time domain...

A portable, low power, digital spectroscopy for CdZnTe (CZT) detector is designed and described in this paper. Its readout electronics is implemented with waveform sampling, Flash-based FPGA (Field Programmable Gate Array) and USB (universal serial bus) technique. The CZT detector, with an effective...

This paper will introduce in detail how to adopt the Target Area Mechatronics System to realize the full closed loop control of light beam leading and target precisely fixed position, and Target Chamber Vacuum Control System and Ambi-room Sweeping Control System, auto program flow of shooting target...

The aims of this research is to determine the sales growth rate (SGR) and the relative market share (RMS) position of PT. Semen Tonasa in the South Sulawesi region in 2021 and 2022, then determines a business strategy that is feasible to implement in order to compete with its main competitors in the...

In order to reduce the nonlinear error, a new method of nonlinear error correction in a wide frequency range is presented. In this method, firstly, the frequency of the measurement signal is divided into three bands. In each frequency band, linear fitting is used to pretreat the difference between the...

The Soil Moisture and Ocean Salinity (SMOS) remotely sensed sea surface salinity (SSS) observations, on a global scale and with various resolutions, have been applied as inputs in three representative retrieval techniques. The purpose is to evaluate the SSS observations’ performance, concerning the accuracy...

In this paper, a general analytical calculation of dc-link current and voltage ripple is presented for three-level three-phase neutral-point-clamped voltage source inverter (3L-NPC-VSI). Based on the analysis of average dc-link current of the upper and lower switches, the low-frequency oscillation of...

The control system of myoelectric prostheses req-uires high precision and rapid response. Many algorithms have been applied in prosthesis control. In this paper, Back-Propagation Neural Network (BPNN) and Multiple Nonlinear Regression (MNLR) are applied to predict handgrip force through surface electromyography...

The research about internal flowpath optimization of wet friction clutch has significant effect on the reduce of heat generating. Taking the diameter and position of nozzle as design parameters, the maximum and minimum lubricant pressure as constraint conditions, and the RMS of lubricant pressure applied...

Tetrahedral amorphous carbon ( ta-C) films were deposited with filtered cathodic vacuum arc by changing the substrate bias from 0V to 500V. The fraction of the sp3 bonding will be effected by the substrate bias, and the sp3 fraction is about 85% when the substrate bias is -200V. The RMS of the films...

In recent years, At home and abroad scholars proposed a great deal of mathematical models on landslide forecast, which through the fitting of landslide monitoring data and trend analysis to determine the landslides time. How to determine the results of the analysis to different mathematical models and...

Bearings are complex components with nonlinear behavior that are used to reduce the effect of inertia. They are used in applications such as induction motors and rotating components. Condition monitoring and effective data analysis are important aspects of fault detection and classification in bearings....

The collection of Reliability, maintenance and supportability (RMS) data is the important basis for preparing to construct and deploy equipment support system and its support resource. It has an important significance for the construction of digital troops. This paper begins with the analysis of the...

To adopt teqc software to carry out comprehensive detection and assessment on 49 continuous running observation stations from the JLCORS network system, including data integrity, ionospheric delay and variability, multipath effect etc. Besides, data sampling rate adopts 30 seconds and the satellite cut-off...

At present the depth error estimation of the RGB-D sensor is aimed at a specific depth camera, the disadvantages of these methods is that it is put forword for a specific sensor and cannot be applied to the other sensors.In order to solve this problem, this paper proposes a general method to estimate...

Scene simulation technology has been developed into a research focus with the military simulation development. The key technologies of the scene simulation federate are discussed in this paper, and then the method of integration between HLA and Vega, and the way of keeping the integrality of scene simulation...

A L/S band 6-bit phase shifter for phased array radar system is designed based on SMIC 0.18um standard CMOS process in this paper. The reasonable parameters calculation and optimization are carried out, the circuits layout design is completed, and the phase RMS error of phase shifter is less than 2 ø,...

Stroke patient increase with 50% motor deficit disability. Therapists identify muscle conditions conventionally with a subjective approach, especially in post-stroke patients by measuring the flexor carpi radialis muscles. There has been no measurement of the flexor carpi radialis muscle in the intervention...

This This Al2O3, SiO2, Ta2O5, Nb2O5, TiO2 single layer oxide thin film are prepared by using ion beam sputtering deposition technology. The oxide films infrared optical constants are fitted by infrared variable elliptic polarization Angle spectrum instrument (IR - VASE), the results show that the fitting...

Impervious surface played an important role in monitoring urban sprawl and understanding human activities. Linear spectral mixture analysis (LSMA) is commonly used to estimate impervious surface due to its simple structure and clear physical meaning. But previous researches found that LSMA seems to overestimate...

In medical devices required in electrocardiography, electroencephalography, electromyography, electrooculography, etc. the most important element is the medical electrode intended for measuring biopotentials. The optimal selection of electrodes is possible only after testing them to confirm the claimed...

This project is to design and manufacture a novel shock absorber with energy harvesting to reclaim vibration energy from automotive suspension system during driving. In order to improve safety and comfort, shock absorbers are used in automotive to remove vibration energy during driving, who adopt hydraulic...

This paper examines the effects of the post-merger integration duration on acquiring rms' leverage behavior before and after a merger, using a dynamic model in which full merger benefits cannot be consumed at the instant of a merger, but rather after a pre-specialized post-merger integration period....

A virtual inertia optimization framework based on improved deep Q network (DQN) is proposed to solve inertia attenuation and frequency instability problems caused by high proportion wind power grid integration. By integrating dynamic perception and decision-making mechanism of deep reinforcement learning,...

Climate change will occur in Indonesia in 2024, especially in the Kudus, Demak and Pati areas, there will be major flooding which will cause 20,772 refugees spread across 59 refugee camps, 93,149 people will be affected by the flood, and there will be 4 deaths. This research aims to predict flood-prone...

Medical images are generally noisy due to the physical mechanisms of the acquisition process. Image enhancement is a technique which reduces noise, removesartifacts, and preserves details in the image. Its purpose is to amplify certain image features for analysis, diagnosis, and display. In this paper,...

Due to the complexity of crosswind loads, only a few national codes/standards in the world provide calculation formulas. The high frequency force balance (HFFB) technique was used to get the across-wind base moment coefficients and power spectra by assessing the rigid models of 71 typical rectangular...

In order to improve the yield of erinacine from H. erinaceus, with pretreatment of enzymatic and acid hydrolysis, then combined with the method of industrial alcohol reflux extraction, significantly the extraction yield of erinacine was improved from 2.4% to 3.2%. In order to optimize extraction process...

Power Quality Improvement premise is to obtain accurate power quality real-time information. In order to achieve the targets more accurate real-time monitoring of power quality, paper LabVIEW graphical software platform for the development, design real-time power quality monitoring and analysis system,...

In this paper, three algorithms are applied to extract the wind direction using a month HFSWR data in an experiment with a single radar system. The preliminary results show that the three algorithms can all eliminate the ambiguity of the wind direction. And the RMS error (RMSE) obtained by the angle...

The reliable detection of faults in rail systems plays a crucial role in ensuring safe and efficient transportation. In recent years, artificial intelligence (AI) techniques, particularly neural networks, have shown promising results in fault detection applications. However, the selection of input parameters...

Strengthening of parts and units of machines, increased reliability and longer service life are an important task of modern aerospace industry. As promising materials for protective-strengthening coatings, matrix composites based on ternary system Fe-B-FenB are offered. The aim of the research was to...

During the forging process, the significant impact forces from working parts of a power forging hammer appear. Usually, forging hammers are tightly connected to the ground or use standard suspension systems based on, e.g. wooden beams. Then the impact forces may be easily transmitted to the ground of...

This article discusses the political stance of the Moluccas Protestant Church (GPM), when it was dealing with the Republic of South Moluccas (RMS). GPM rejected the RMS’ request to support its struggle to make Moluccas as an independent and sovereign state of the Federal Republic of Indonesia (RIS)....

Estimation of aortic and left ventricular (LV) pressure usually requires measurements that are difficult to acquire during the imaging required to obtain concurrent LV dimensions essential for determination of LV mechanical properties. We describe a novel method for deriving aortic pressure from the...

In the light of the development of modern digital technologies, the development and integration of new business process management systems for commercial business organizations is a very serious problem. Methods for reducing the negative result by promptly localizing and absorbing the risk effect on...

Nowadays the main oil recovery is done in Western Siberia. The biggest deposits are at the final stage of the recovery. The oil recovery increase can be achieved by heavy oil recovery and correct development and supplementary development of medium and small deposits. Torrential deposit is one of the...

The Indonesian government targets Indonesia to have zero emission energy by 2050. Solar energy is one solution to this target. The issuance of the Minister of Energy and Mineral Resources Regulation Number 26 of 2021 concerning Rooftop Solar Power Plants opens up opportunities for increasing the capacity...

Stem water content is an important index of plant water balance. A new method based on changes in ultrasonic properties of stem was used to monitor stem water content in this paper, because the propagation of ultrasonic pulse echo signal and its attenuation characteristics in the material are closely...