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141
Near-Field Route Optimization-Supported Polar Ice Navigation via Maritime Radar Videos
Published 2021-01-01“…A ship’s crew identifies sea ice in arctic channels with the help of radar echoes, and ship maneuvering decisions are made to avoid navigation interference. Ship officials must manually and consistently change the ship’s route of travel, which is time-consuming and tedious. …”
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142
Multiple access based on three-stage modulation in multi-band OFDM-UWB system
Published 2007-01-01“…According to the characteristics of multi-band orthogonal frequency-division multiplexing ultra-wideband(OFDM-UWB) system,a multiple access based on three-stage modulation(TSM-MA) was proposed.It combined multi-carrier code division multiple access(MC-CDMA) with orthogonal frequency division multiple access(OFDMA) and frequency hopping multiple access(FHMA),carried out the advantages of the three multiple access techniques.It reduced the multiple access interference and made full use of the available resource of the channel.The two-stage spread spectrum and two-stage frequency hopping were used to the TSM-MA for reducing the complexity of receiver.Simula-tion results showed that TSM-MA has obvious advantages in bit error rate(BER) performance over time frequency code multiple access(TF-MA) about 3 dB and lower complexity than that of TF-MA.…”
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143
KEDUDUKAN, TUGAS POKOK, DAN FUNGSI SERTA EKSISTENSI MAHKAMAH AGUNG DI INDONESIA
Published 2020-06-01“…The long journey of the Supreme Court made it more concrete and gained the trust of the public related to judicial issues in Indonesia.…”
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144
Research on Random Access of Satellite Internet of Things Based on Load Prediction
Published 2023-12-01“…In the process of the vigorous development of satellite internet of things, random access protocol is regarded as the most suitable communication protocol due to its characteristics of low signaling overhead, high transmission efficiency, high flexibility and easy implementation.However, due to drastic load changes, conventional random access mode only has advantages in the specific load range.Dynamic allocation of random access resources requires the accurate number of time slot access applications.In view of the above problems, a random access adaptive scheme was proposed, which could adaptively selected the appropriate random access mode according to the future load size, so as to improved the system throughput.The load size could be obtained through the proposed load estimation and prediction scheme.When narrowband interference exists in the transmission environment, the spread-spectrum communication means was introduced to made the adaptive scheme of random access run successfully.Moreover, the proposed adaptive scheme also improved the system throughput.…”
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145
Estimation of calcification detectability in breast tissues by means of the ultrasonic echo and shadow methods
Published 2015-07-01“…This could be shown theoretically and experimentally using spheres made of plasticine.…”
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146
A New Time-frequency Domain Feature Extraction Method for Rolling Bearing Fault Diagnosis
Published 2016-01-01“…But in the factory,some factors like signal interference or environment noise will destroy the energy distribution. …”
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147
Research on Random Access of Satellite Internet of Things Based on Load Prediction
Published 2023-12-01“…In the process of the vigorous development of satellite internet of things, random access protocol is regarded as the most suitable communication protocol due to its characteristics of low signaling overhead, high transmission efficiency, high flexibility and easy implementation.However, due to drastic load changes, conventional random access mode only has advantages in the specific load range.Dynamic allocation of random access resources requires the accurate number of time slot access applications.In view of the above problems, a random access adaptive scheme was proposed, which could adaptively selected the appropriate random access mode according to the future load size, so as to improved the system throughput.The load size could be obtained through the proposed load estimation and prediction scheme.When narrowband interference exists in the transmission environment, the spread-spectrum communication means was introduced to made the adaptive scheme of random access run successfully.Moreover, the proposed adaptive scheme also improved the system throughput.…”
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148
Sliding mode control of electronic mechanical braking system based on new power exponential
Published 2025-01-01“…In response to the chattering problem of sliding mode control, an improvement is made in the exponential convergence law, and a new power exponential convergence law is proposed. …”
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149
ELECTROMAGNETIC RADIATION REFLECTION AND TRANSMISSION CHARACTERISTICS OF TWO-LAYER STRUCTURES BASED ON TRANSITION METAL OXIDES
Published 2019-12-01“…The aim of the work, the results of which are presented in the framework of the article, was to study the of electromagnetic radiation interaction laws in the frequency range 0.7…17 GHz with two-layer structures, the surface layer of which was made using powdered titanium dioxide, and the inner layer was made using a powder material based on oxide ferric iron. …”
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150
Flutter Analysis Based on the New Numerical Model IAR-99 HAWK Empty Equipped Configuration Aircraft
Published 2024-12-01“…The aerodynamic idealization of the IAR-99 aircraft was made using the DLM method for subsonic flow, also considering the load-bearing surface/fuselage interference and aims to determine the generalized aerodynamic forces that occur on one mode of vibration due to the influence of another mode of vibration. …”
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151
Des Balkans
Published 2008-12-01“…As the Nation State made its appearance as a formation in the region it created even more fragmentation, almost imitating the one caused by the great schism of 1054, where geographical space was used as a way to separate Churches, beliefs, empires, powers as well as styles of art or writing. …”
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152
Low illumination image enhancement algorithm of CycleGAN coal mine based on attention mechanism and Dilated convolution
Published 2024-12-01“…In order to improve the detail feature extraction ability of the generator network, the image enhancement network was constructed by using the Parameter-Free Attention Mechanism (simAM) and the Dual-Channel Attention Mechanism (CBAM) to improve the anti-interference ability of the model in complex background, so that the model could recover the image detail features better, which improved the anti-interference ability of the model under complex background and made the model recover the detail features better. …”
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153
A Confidential Transmission Method for High-Speed Power Line Carrier Communications Based on Generalized Two-Dimensional Polynomial Chaotic Mapping
Published 2025-07-01“…The deep integration of smart grid and Internet of Things technologies has made high-speed power line carrier communication a key communication technology in energy management, industrial monitoring, and smart home applications, owing to its advantages of requiring no additional wiring and offering wide coverage. …”
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154
Lateral Collateral Ligament Repair With Reconstruction Augmentation
Published 2025-05-01“…Technique: A curvilinear incision was made at the lateral epicondyle, extending between Gerdy’s tubercle and the fibular head. …”
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155
Bone density may affect primary stability of anterior cruciate ligament reconstruction when organic core bone plug fixation technique used
Published 2022-01-01“…The selected group was compared with interference screw fixation technique as a gold standard method in ACL reconstruction. …”
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156
Problems in verb conjugation in Spanish among Malaysian Chinese students: A case study
Published 2017-07-01“…Moreover, it was found that if problems in conjugating verbs in Spanish are to be attributable to one phenomenon, that phenomenon is intraference and not so much interference. …”
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157
The effect of low-cycle fatigue on evolution of fracture mechanics parameters in residual stress field caused by cold hole expansion
Published 2018-12-01“…The specimens with a central open hole are made from 2024 aluminium alloy. The expansion level is 5% of nominal interference. …”
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158
Percolated conductive polyaniline-clay nanocomposite in polyvinyl chloride through the combined approach porous template and self-assembly
Published 2014-02-01“…The highly oriented percolated network of polyaniline-clay nanocomposite in PVC matrix was revealed from the studies made by scanning electron microscopy (SEM) and atomic force microscopy (AFM). …”
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159
Problems in verb conjugation in Spanish among Malaysian Chinese students: A case study
Published 2017-07-01“…Moreover, it was found that if problems in conjugating verbs in Spanish are to be attributable to one phenomenon, that phenomenon is intraference and not so much interference. …”
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160
Representasi Etnis Tionghoa dalam Film “Ku Kejar Cinta Ke Negeri Cina” dan “Ngenest”
Published 2018-12-01“…Through Presidential Decree No. 12 in 2014 the government again made a regulation that tried to place Chinese people not to be seen and treated discriminatively. …”
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