Results 11 to 20 of about 3,874,774 (303)
Small-Diameter Tube Wall Damage-Detection Method Based on TE01 Mode Microwave
Sensors, 2022 Accidents occur frequently in urban gas pipelines, and pipeline damage detection is an important means of ensuring pipeline safety. Aiming at the problem that the small diameter pipeline is difficult to detect, this paper proposes a detection method for ...
Meng Shi +3 more
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Are analysts' loss functions asymmetric? [PDF]
, 2005 Recent research by Gu and Wu (2003) and Basu and Markov (2004) suggests that the well-known optimism bias in analysts’ earnings forecasts is attributable to analysts minimizing symmetric, linear loss functions when the distribution of forecast errors is ...
Mark A. Clatworthy +5 more
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Graphene based microstrip patch antenna on photonic crystal substrate for 5G application
Frontiers in Materials, 2022 One of the strongest and thinnest substances known to exist is graphene. It can be efficiently used for antenna fabrication and significant benefits can be analyzed such as size miniaturization, gain and return loss enhancement, flexibility and increase ...
Chandan Kumar +3 more
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Design of a 470 MHz band IoT antenna for a handheld terminal
Dianzi Jishu Yingyong, 2021 Many handheld terminal devices require a light and compact receiving and transmitting antenna. FPC antennas are popular among designers because of their light weight and thin thickness. In order to obtain an antenna with suitable size, bandwidth and gain,
Sun Nan +6 more
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Online Detection of Vacuum Level of Circuit Breaker Based on Terahertz Wave Return Loss
Journal of Harbin University of Science and Technology, 2022 For the online detection of vacuum degree in circuit breaker interrupter chamber, based on the principle of terahertz detection technology, the method of online detection of vacuum degree in circuit breaker using terahertz wave return loss is adopted ...
LUO Hong-hong +3 more
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Are analysts' loss functions asymmetric? [PDF]
, 2012 Despite displaying a statistically significant optimism bias, analysts' earnings forecasts are an important input to investors’ valuation models. Understanding the possible reasons for any bias is important if information is to be extracted from earnings
Clatworthy, Mark +2 more
core +5 more sources
Frontiers in Physics, 2020 A novel periodic photonic crystal structure with through-holes drilled by a 4 × 7 array based on the line source analysis method was proposed in this paper to improve the gain and radiation of the microstrip antenna.
Zhendong Ding, Dan Zhang, Chunyu Ma
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Coaxial Low-Pass Filter Design and Manufacture
IEEE Access, 2023 In this study, a low-pass filter with coaxial transmission lines is designed and produced. The objective for designing a coaxial low-pass filter was to utilize both low-loss transmission and high breakdown voltage capability for high power microwave ...
E. Yilmaz, M. Ucuncu
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Gysel Power Divider Realized by Ridge Gap Waveguide Technology
IEEE Access, 2021 The novel ridge-gap waveguide (RGW) technology which uses a full metal structure has many advantages in micro/mm-wave frequencies such as low loss, broad bandwidth, low sensitivity to manufacturing errors, and easy integration with active components, etc.
Abbas Karimi Nobandegani +1 more
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Jurnal Jaringan Telekomunikasi, 2022 Many types of antennas can be used for digital TV receivers; in this article we try to design a double biquad antenna. This is due to a simple form, easy to make, a wide beamwidth.
Waluyo Waluyo +2 more
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