Results 61 to 70 of about 1,981,461 (291)
Hybrid analysis of vibration of the overhead travelling crane [PDF]
Transport Problems, 2014 The article presents the results of numerical experiment using a hybrid approach of finite element method and system dynamics simulation of the overhead traveling crane in the case of lifting load. The aim of the analysis was to examine the impact of the
Tomasz HANISZEWSKI
doaj
Spectrum Analysis Attack Method of Physical Layer Encryption Algorithm [PDF]
Jisuanji gongcheng, 2018 Most of the existing physical layer encryption algorithms setting and security analysis are carried out on baseband,ignoring the threat of spectrum leakage to the security of the algorithm.On the basis of analyzing the spectrum characteristics of ...
GAO Baojian,HU Yun,HU Li’na
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A correlation noise spectrometer for flicker noise measurement in graphene samples [PDF]
, 2019 We present a high-resolution digital correlation spectrum analyzer for the measurement of low frequency resistance fluctuations in graphene samples. The system exploits the cross-correlation method to reject the amplifiers' noise.
Callegaro, Luca +3 more
core +3 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada +6 more
wiley +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Analysis of secondary market policies of radio frequency spectrum in indonesia
MATEC Web of Conferences, 2018 The radio frequency spectrum is an important factor in improving service quality and expanding the network of cellular operators. Operators attempt to obtain additional spectrum allocations through the practice of merging or taking over the radio ...
Wibisono Gunawan +2 more
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Channel Capacity Analysis of Spread Spectrum Watermarking in Radio Frequency Signals
IEEE Access, 2017 The carrier of the digital watermark expands from audio signals to radio frequency (RF) signals. Unlike audio signals, RF signals, such as the watermark transmission carrier, must be correctly demodulated with the watermark signals so that the distortion
Xu Xie, Zhengguang Xu, Hui Xie
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A LOFAR view on the duty cycle of young radio sources [PDF]
, 2015 Compact Steep Spectrum, Gigahertz Peaked Spectrum and High Frequency Peak (CSS, GPS, HFP) sources are considered to be young radio sources but the details of their duty cycle are not well understood.
An +29 more
core +3 more sources
Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source
Analysis and design of a class-D amplifier [PDF]
, 1968 Analysis of a basic class-D amplifier circuit configuration shows its adaptability to a variety of applications. The feedback, input and output configuration and the frequency spectrum of the pulse-width-modulated signal are ...
core +1 more source