Results 31 to 40 of about 1,424,356 (264)
Redefinition of the SI Base Units: Its Background and Principle [PDF]
한국정밀공학회지, 2018 The International System of Units (acronym: SI) is founded on seven base units (meter, kilogram, second, ampere, kelvin, mole, and candela) corresponding to seven base quantities (length, mass, time, electric current, thermodynamic temperature, amount of
Ho Seong Lee
doaj +1 more source
Measurement + Control, 2021 A new method based on the innovation of Kalman filter and extrapolation-accumulation is proposed to detect weak frequency anomalies in atomic clocks with short detection time and high detection probability. In this method, the detection statistics of the
Ran Yan +4 more
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P-step Kalman-like unbiased FIR algorithm for detecting anomalies of atomic clocks
Measurement + Control, 2023 An extended measurement model anomaly detection algorithm for atomic clocks is proposed based on the p-step Kalman-like iterative Unbiased finite impulse response (UFIR) algorithm. The novel of the proposed algorithm is that it breaks the disadvantage of
Ran Yan +3 more
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Hybrid InP and SiN integration of an octave-spanning frequency comb
APL Photonics, 2021 Implementing optical-frequency combs with integrated photonics will enable wider use of precision timing signals. Here, we explore the generation of an octave-span, Kerr-microresonator frequency comb using hybrid integration of an InP distributed ...
Travis C. Briles +9 more
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Development of Analytical Methods for Calculating Time Standards for Shunting Operations
Nauka ta progres transportu, 2021 Purpose. The article is aimed to conduct a historical analysis of the development of analytical methods for standardizing the duration of shunting operations, as well as assessing their compliance with the existing operating conditions of railway ...
D. M Kozachenko +2 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele +19 more
wiley +1 more source
Multi-dimensional data transmission using inverse-designed silicon photonics and microcombs
Nature Communications, 2022 The authors demonstrate a multi-dimensional communication scheme that combines wavelength- and mode- multiplexing on photonic integrated circuits using foundry-compatible photonic inverse design and spectrally flattened ...
Ki Youl Yang +42 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background PIK3CA‐related overgrowth spectrum (PROS) includes several rare overgrowth disorders resulting from somatic gain‐of‐function mutations in PIK3CA. Despite treatment advances, including the recent approval of alpelisib for PROS in the United States, literature detailing the patient experience with PROS is limited.
Vamsi Bollu +8 more
wiley +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background 131I‐metaiodobenzylguanidine (131I‐MIBG) radiotherapy is a key treatment for relapsed and refractory (R/R) neuroblastoma (NB). Patients with R/R disease treated in the modern era are increasingly exposed to anti‐GD2 immunotherapy, which exerts selective pressure and may modify both tumor cell state and microenvironment.
Benjamin J. Lerman +7 more
wiley +1 more source
Meta-Dispersion for Microcomb Spectral Design in Photonic-Crystal Rings [PDF]
EPJ Web of ConferencesMicrocombs, essential for various applications, benefit from tailored spectral shaping. Leveraging inverse design, we demonstrate versatile ”meta” dispersion control via multimode hybridization in photonic crystal ring resonators, offering promising ...
Lucas Erwan +4 more
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