Results 71 to 80 of about 1,968,691 (295)

Rotor Vibration Caused by Oil Whip and Treatment Method

open access: yesJixie chuandong, 2020
The basic concepts and main characteristics of the oil whirl and oil whip are introduced, and the oil whip may cause serious damage to the unit, which must be paid great attention to and dealt with in time.
Yufeng Li   +4 more
doaj  

Time-Evolution of the Power Spectrum of the Black Hole X-ray Nova XTE J1550-564 [PDF]

open access: yes, 2001
We have studied the time evolution of the power spectrum of XTE J1550-564, using X-ray luminosity time series data obtained by the Rossi X-Ray Timing Explorer satellite.
Cohen, Leon   +3 more
core   +1 more source

Adenosine‐to‐inosine editing of miR‐200b‐3p is associated with the progression of high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
A‐to‐I editing of miRNAs, particularly miR‐200b‐3p, contributes to HGSOC progression by enhancing cancer cell proliferation, migration and 3D growth. The edited form is linked to poorer patient survival and the identification of novel molecular targets.
Magdalena Niemira   +14 more
wiley   +1 more source

Analysis of a duffing oscillator that exhibits hysteresis with varying excitation frequency and amplitude [PDF]

open access: yes, 2007
Hysteresis, or jump phenomenon, are a common and severe nonlinear behaviour associated with the Duffing oscillator and the multi-valued properties of the response solution.
Billings, S.A., Li, L.M.
core   +1 more source

Investigating the cell of origin and novel molecular targets in Merkel cell carcinoma: a historic misnomer

open access: yesMolecular Oncology, EarlyView.
This study indicates that Merkel cell carcinoma (MCC) does not originate from Merkel cells, and identifies gene, protein & cellular expression of immune‐linked and neuroendocrine markers in primary and metastatic Merkel cell carcinoma (MCC) tumor samples, linked to Merkel cell polyomavirus (MCPyV) status, with enrichment of B‐cell and other immune cell
Richie Jeremian   +10 more
wiley   +1 more source

Study on interference problems between 5G base stations and adjacent frequency systems

open access: yesDianxin kexue, 2021
For the interference problems in frequency sharing and geographical coexistence between 5G base stations and the adjacent frequency systems such as satellite earth stations, the different situations consisting of the interferences to 5G base stations and
Jianming YAO
doaj   +2 more sources

Synthetic Amplitude Spectrum and Its Extensions for Analyzing the Two Perpendicular Directional Vibration Displacement Signals of a Rotating Rotor

open access: yesAdvances in Mechanical Engineering, 2013
Classical Amplitude Spectrum analysis and Full Amplitude Spectrum analysis exhibit deficiencies in analyzing the two perpendicular directional vibration displacement signals of a rotating rotor.
Liang Yonggang   +5 more
doaj   +1 more source

Integrated genomic and proteomic profiling reveals insights into chemoradiation resistance in cervical cancer

open access: yesMolecular Oncology, EarlyView.
A comprehensive genomic and proteomic analysis of cervical cancer revealed STK11 and STX3 as a potential biomarkers of chemoradiation resistance. Our study demonstrated EGFR as a therapeutic target, paving the way for precision strategies to overcome treatment failure and the DNA repair pathway as a critical mechanism of resistance.
Janani Sambath   +13 more
wiley   +1 more source

Sinusoidal frequency modulated spectrum analysis

open access: yes, 2018
We will analyze the stationary frequency modulated (FM) process with the additive ambient noise Zt =Yi+t:t =Acos(wct+X(t)+
Lopes, Silvia Regina Costa   +1 more
openaire   +1 more source

Overlapping M-ary Frequency Shift Keying Spread-Spectrum Multiple-Access Systems using Random Signature Sequences

open access: yes, 1999
In this paper, a multiple-access spread-spectrum communication system using binary frequency shift keying (BFSK) or M-ary frequency shift keying (MFSK) and noncoherent demodulation is considered.
Hanzo, L., Yang, L-L.
core  

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