Performance of OFDM: FSO Communication System with Hybrid Channel Codes during Weak Turbulence by Ritu Gupta, Tara Singh Kamal, Preeti Singh

“…The performance of orthogonal frequency division multiplexing- (OFDM-) based free-space optics (FSO) depends on various parameters such as number of subcarriers, base band modulation, nature of laser beam, turbulence modelling, and much more. …”
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High-Accuracy Surface Profile Measurement Based on the Vortex Phase-Shifting Interferometry by Donge Zhao, Chaozheng Jia, Yayun Ma, Xuefeng Yang, Bin Zhang, Wenbo Chu

“…According to the principle of phase-shifting interferometry and spiral phase characteristics of the vortex beam, this article proposes a method for detecting the surface profile of a transparent object, in which the +1 order vortex beam is generated by a spatial light modulator and is taken as the reference light. The influence of the nonlinear phase modulation characteristics of the spatial light modulator on the measurement precision is studied. …”
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Evaluation of an in situ QAM‐based Power Line Communication system for lithium‐ion batteries by Mahyar J. Koshkouei, Erik Kampert, Andrew D. Moore, Matthew D. Higgins

“…The use of advanced modulation, such as Quadrature Amplitude Modulation (QAM), is considered here. …”
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Photoacoustic Measurement of Ethane with Near-Infrared DFB Diode Laser by Gang Cheng, Yuan Cao, Kun Liu, Gongdong Zhu, Guishi Wang, Xiaoming Gao

“…Modulation frequency and modulation amplitude were optimized for getting optimum performance. …”
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A Four Quadrature Signals’ Generator with Precise Phase Adjustment by Xiushan Wu, Yanzhi Wang, Siguang An, Jianqiang Han, Ling Sun

“…A four-way quadrature signals generator with precise phase modulation is presented. It consists of a phase precision regulator and a frequency divider. …”
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Transmission Performance Analysis of WDM Radio over Fiber Technology for Next Generation Long-Haul Optical Networks by Badiaa Ait Ahmed, Otman Aghzout, Mounia Chakkour, Fahd Chaoui, Azzeddin Naghar

“…In Digital RoF, the impact analysis of modulation types such as Differential Phase-Shift Keying (DPSK) and Quadrature Amplitude Modulation (QAM) is also introduced. …”
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Paired Stimulation to Promote Lasting Augmentation of Corticospinal Circuits by Noam Y. Harel, Jason B. Carmel

“…After injury, electrical stimulation of the nervous system can augment plasticity of spared or latent circuits through focal modulation. Pairing stimulation of two parts of a spared circuit can target modulation more specifically to the intended circuit. …”
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Performance Analysis of Dimming Methods in Visible Light Communication Systems by Mehmet Sonmez, Süleyman Börekoğlu

“…In this sense, it has been focused on performance differences between M-ary VPPM (M-ary Variable Pulse Position Modulation) scheme and VPAPM (Variable Pulse Amplitude Position Modulation) which was proposed to ensure the multilevel transmission for VPPM scheme. …”
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Chaotic Spread-Spectrum Communication: A Comparative Study between Chaotic Synchronization and Matched Filtering by Arturs Aboltins, Andreas Ahrens, Nikolajs Tihomorskis

“…Additionally, we assess the impact of frequency modulation (FM) on these modulation methods, as FM allows the creation of simplified non-coherent modulation schemes. …”
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Analysis on the Ecological Concept of Ternary Interactive Education in Business English Writing by Yuwan Zhang

“…The modulation recognition can well reduce the influence of interference on algorithm performance. …”
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Simulation investigation of a Ka-band phase-locked klystron-type coaxial relativistic Cherenkov generator by Yunxiao Zhou, Jinchuan Ju, Wei Zhang, Dian Zhang, Ying Li, Tengfang Wang, Fugui Zhou, Zhuang Yu, Hongtao Yao, Jun Zhang

“…The pre-modulation region is used for initial speed modulation of intense relativistic electron beams (IREB), ensuring that the output frequency is consistent with the input frequency. …”
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Organic Light-Emitting Diode with Color Tunable between Bluish-White Daylight and Orange-White Dusk Hue by Shih-Yun Liao, Sudhir Kumar, Hui-Huan Yu, Chih-Chia An, Ya-Chi Wang, Jhong-Wei Lin, Yung-Lee Wang, Yung-Chun Liu, Chun-Long Wu, Jwo-Huei Jou

“…Unlike the prior arts, the color-temperature span can be made much wider without any additional carrier modulation layer, which should enable a more cost effective fabrication. …”
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Research on treatment-related aspects of depression from India in the preceding decade (2014–2023): An updated systematic review by Alankrit Jaiswal, S Umesh, Nishant Goyal

“…Out of those, 15 were studies on drug efficacy, five on neuro-modulation, nine on psycho-social interventions, four on adverse effects, and three on miscellaneous studies. …”
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Influence of weak injection on spatiotemporal instabilities in a broad-area vertical-cavity semiconductor laser by E.A. Yarunova, A.A. Krents, N.E. Molevich

“…A linear analysis of the stability of a spatially homogeneous lasing regime is performed and the modulation instability is shown to develop in such lasers. …”
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Ultrafast strong-field terahertz nonlinear nanometasurfaces by Cai Jiahua, Chen Sai, Geng Chunyan, Li Jianghao, Quan Baogang, Wu Xiaojun

“…By switching the THz field strength, we successfully realize a self-modulation ∼50 GHz frequency shift, which is further verified via the TPTP ultrafast time-resolution technique. …”
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Time Domain Equalization and Digital Back-Propagation Method-Based Receiver for Fiber Optic Communication Systems by Fazal Muhammad, Farman Ali, Usman Habib, Muhammad Usman, Imran Khan, Sunghwan Kim

“…Fiber optic communication systems (FOCSs) have attained a lot of attention by revolutionizing the telecommunication industry and offering new possibilities with the technical advancements in state-of-the-art high speed digital electronics. Advanced modulation formats make use of the phase, amplitude, and polarization of the optical signals at the same time to provide high spectral efficiency as compared with 1 bit/s/Hz for the intensity modulation direct detection system (IMDD), but are highly prone to transmission impairments. …”
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A New Prime Code for Synchronous Optical Code Division Multiple-Access Networks by Huda Saleh Abbas, Mark A. Gregory, Michael W. Austin

“…The operating performance, using incoherent on-off keying modulation and incoherent pulse position modulation systems, has been analyzed. …”
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A Study on the Working Performance of Dimming Methods for Single- and Multichip Power LEDs by İsmail Kıyak

“…Power LEDs have increasingly been used for general lighting via multichip module technology. The output of power LEDs should be controlled to obtain life and illuminance values in catalog. …”
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Renin-Angiotensin System and Sympathetic Neurotransmitter Release in the Central Nervous System of Hypertension by Kazushi Tsuda

“…It has been proposed that the brain RAS may actively participate in the modulation of neurotransmitter release and influence the central sympathetic outflow to the periphery. …”
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Possibilities for Advanced Encoding Techniques at Signal Transmission in the Optical Transmission Medium by Filip Čertík, Rastislav Róka

“…In the final part, a comparison of the selected modulation techniques with different encoding techniques and their implementation in real transmission systems is shown.…”
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