Acoustic modelling of surface sources. Part II. Piston model, asymmetrical function of vibration velocity, discretizing error, axisymmetrical problem by A. BRAŃSKI

“…In the paper, by applying irregular discretization of the axisymmetrical plane source, an optimal piston model was obtained. An asymmetrical function of the vibration velocity, with regard to its zeros was assumed on vibrating surface. …”
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60 $$^{\circ }$$ Flat PWM technique for single-source switched-capacitor multilevel inverter with quadruple voltage boost and enhanced output by Oorappan G. M, Lakshmanan S. A, Jagabar Sathik M

“…Abstract This paper introduces a new 60 $$^{\circ }$$ Flat PWM Technique for Single-Source Switched-Capacitor(SC) Multilevel Inverter with Quadruple Boost (60FP-MLI-QB) and Enhanced Output. …”
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Dans le vague des sentiments : l’expression du flou comme spécialité des romancières d’une période esthétiquement indéfinie, 1780–1820 ? by Florence Boulerie

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Generation of a 28 GHz annular power distribution with high power gyrotron and its application to microwave driven in tube accelerator by Masayuki Takahashi, Toshiki Yamada, Ryutaro Minami, Tsuyoshi Kariya, Kohei Shimamura

“…However, as the electric field concentration at the center-body head was avoided using the vortex phase plate, plasma and strong shock wave generation were obtained at the rear side of the vehicle, inducing a positive impulse to accelerate the thruster toward the beam source direction. …”
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Tracking of Fin Whales Using a Power Detector, Source Wavelet Extraction, and Cross-Correlation on Recordings Close to Triplets of Hydrophones by Ronan Le Bras, Peter Nielsen, Paulina Bittner

“…The time of arrival of the direct wave to the sensor and the Time Differences of Arrivals (TDOA) between sensors are obtained by correlation of the extracted source wavelets within the time segments. …”
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In Situ Analysis of Jupiter's Broadband Kilometric Auroral Radio Emissions With Juno by B. Collet, L. Lamy, C. K. Louis, V. Hue, T. K. Kim

“…Taking advantage of Juno in situ measurements within the auroral regions, we surveyed the Juno/Waves radio observations over the 60 first orbits to identify 7 bKOM source candidates. …”
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Experimental Measurements of Explosion Effects Propagating in the Real Geological Environment—Correlation with Small-Scale Model by Daniel Papán, Emma Brozová, Zuzana Papánová

“…For dynamic tasks and model scaling, an important result can be pointed out, namely the approximately fourfold decrease in the exponents of the dependence on the distance from the excitation source and the amplitudes between P-waves (0.4316) and R-waves (0.1219). …”
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Be Careful in Multimessenger Inference of the Hubble Constant: A Path Forward for Robust Inference by Michael Müller, Suvodip Mukherjee, Geoffrey Ryan

“…Multimessenger observations of coalescing binary neutron stars (BNSs) using gravitational-wave (GW) and electromagnetic- (EM) wave signals are a direct probe of the expansion history of the Universe and carry the potential to shed light on the disparity between low- and high-redshift measurements of the Hubble constant H _0 . …”
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First-Arrival Tomography for Mountain Tunnel Hazard Assessment Using Unmanned Aerial Vehicle Seismic Source and Enhanced by Supervirtual Interferometry by Jun Zhang, Rongyi Qian, Zhenning Ma, Xiaoqiong Lei, Jianyu Ling, Xu Liu, Guibin Zhang

“…To address this, we deployed a seismic source delivered by an unmanned aerial vehicle (UAV) for a highway tunnel survey in Lijiang, China. …”
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Analytic Theory for Parametric Amplification in High-Q Micro-Ring Resonators by Shiqi He, Nuo Chen, Hanghang Li, Xiaolong Fan, Wenchan Dong, Jianji Dong, Heng Zhou, Xinliang Zhang, Jing Xu

“…Optical parametric amplifiers (OPAs) are optical amplifiers based on four-wave mixing processes, showing great potential for applications in communications, optical signal processing, quantum optics, etc. …”
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Miniaturized BAW Filter for Wide Band Application Based on High-Q Factor Active Inductor by Zhencheng Xu, Jiabei Pan, Feng Gao, Weipeng Xuan, Hao Jin, Jikui Luo, Shurong Dong

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Spatiotemporal variation of aftershock activity in northern source region of the 2011 Tohoku-oki earthquake by long-term ocean bottom seismometers by Masanao Shinohara, Ryota Hino, Kimihiro Mochizuki, Toshinori Sato, Kazuo Nakahigashi, Tomoaki Yamada, Yoshio Murai, Hiroshi Yakiwara, Yoshihiro Ito, Ryosuke Azuma, Toshihiko Kanazawa

“…Because we had carried out a LTOBS observation in the study area before the mainshock, the seismicity before the mainshock and aftershock activities was compared. Source positions of the events were determined by P and S-wave arrival times, and focal mechanisms of them were obtained using polarities of vertical components of the first arrivals. …”
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Legal Historians of Russian Diaspora in 1920s—1930s by S. I. Mikhalchenko, E. V. Tkachenko, Ju. N. Ustinova

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Modeling of Acoustic Coupling of Ultrasonic Probes for High-Speed Rail Track Inspection by Sławomir MACKIEWICZ, Zbigniew RANACHOWSKI, Tomasz KATZ, Tomasz DĘBOWSKI, Grzegorz STARZYŃSKI, Przemysław RANACHOWSKI

“…The paper presents the modeling of transmission of the ultrasonic plane wave through an uniform liquid layer. The considered sources of the ultrasonic wave were normal (straight) beam longitudinal wave probes and angle beam sheer waves probes commonly used in non-destructive testing. …”
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Diffraction Characteristics of Small Fault ahead of tunnel face in coal roadway by Bo Wang, Shengdong Liu, Fubao Zhou, Jun Zhang, Fangkun Zheng

“…Considering the influence of an acoustic wave of the roadway cavity and channel wave of the coal seam, the advanced detection model of small fault ahead of tunnel face is established. …”
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Aged Persons Living with HIV and Nutritional Wellness: Analysis of 2013 South Africa-SAGE Well-Being of Older People Study (WOPS) Wave 2 by Joseph Kojo Oduro, Kwaku Kissah-Korsah

“…Data were extracted from the 2013 South Africa-SAGE Well-Being of Older People Study (WOPS) Wave 2. The study sampled 440 aged persons (50 years and above). …”
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High-Efficiency Continuous Wave 16 W–7.5 GHz Power Amplifier With a GaN Transistor in Plastic Packaging by Alireza Sadeghi-Fard, Sayyed-Hossein Javid-Hosseini, Vahid Nayyeri, Paolo Colantonio

“…The proposed design approach relies on determining an appropriate design space for the matching networks, defined by identifying optimal power and efficiency contours derived from source/load-pull techniques. The fabricated amplifier achieved in continuous wave (CW) a saturated output power of 41.7–42.4 dBm in the entire frequency band of 7.25–7.85 GHz while maintaining a drain efficiency of 35–39 %. …”
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New Potential Ultracompact X-Ray Binaries for Space-based Gravitational-wave Detectors from a Low-mass Main-sequence Companion Channel by Minghua Chen, Jinzhong Liu

“…Focusing on the low-mass MS companion channel, we simulate gravitational-wave (GW) signals from UCXBs with LEGWORK and evaluate their detectability by space-based observatories such as Taiji and TianQin. …”
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Synchronization of pulsed and continuous-wave IMPATT oscillators in the millimeter wavelength range. Part 1. Generator designs and a generalized model of their external signal sync... by Mykola Karushkin

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A New Scheme to Generate Multi-Frequency Mm-Wave Signals Based on Cascaded Phase Modulator and I/Q Modulator by Mingming Zhao, Wen Zhou, Li Zhao, Jiangnan Xiao, Xinying Li, Feng Zhao, Jianjun Yu

“…We propose a new scheme to generate multi-frequency vector mm-wave signals based on cascaded phase modulator and I/Q modulator by adopting independent-sideband (ISB) modulation scheme. …”
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