Results 11 to 20 of about 6,229,843 (307)
Review of the methods to determine the hazard and toxicity of pesticides to bumblebees [PDF]
, 2001 Methods to determine the impact of pesticides on bumblebees are described. They are classified into laboratory tests to determine the acute toxicity and the hazard to bumblebees, (semi) field tests, and brood tests.
Steen, J.J.M., van der
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Simulated Research on Passive Sonar Range Using Different Hydrographic Conditions
MATEC Web of Conferences, 2015 As an example using the passive sonar, it calculated the quality factor of passive sonar using the sonar equation. The sound field was calculated under different depth and range using multiform hydrographic conditions.
Han Jing +3 more
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Measurement of Bulk Viscosity of CO2 Based on Spontaneous Rayleigh-Brillouin Scattering
IEEE Access, 2020 The spontaneous Rayleigh-Brillouin scattering spectra of CO2 are measured at different temperatures from 278 K to 369 K corresponding to the pressure range over 4-7 bar approximately and compared with the Tenti S6 model.
Jingcheng Shang +7 more
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Shock and Vibration, 2021 To further study the fault mechanism and fault features of rolling bearings, a two-DOF rolling bearing fault dynamic model with inner ring local defects considering the bearing radial clearance and time-varying displacement excitation is established ...
Zhang Fengling +4 more
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To enhance collaborative learning and practice network knowledge with a virtualization laboratory and online synchronous discussion [PDF]
, 2014 This work is licensed under a Creative Commons Attribution 4.0 Internatinal License.Recently, various computer networking courses have included additional laboratory classes in order to enhance students' learning achievement.
Ghinea, G, Hwang, W-Y, Kongcharoen, C
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A novel collision tumour of myofibroblastoma and low-grade adenosquamous carcinoma in breast
Diagnostic Pathology, 2020 Background Myofibroblastoma (MFB) and low-grade adenosquamous carcinoma (LGASC) are rare tumours in the breast, respectively. However, a collision tumour of the two types has never been reported.
Guang-Zhi Yang +2 more
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A Differential Split-Type Pressure Sensor for High-Temperature Applications
IEEE Access, 2021 This study proposes a split-type pressure sensor based on differential capacitance that can be applied to in-situ accurate pressure testing in high-temperature environments.
Chen Li +6 more
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Micromachines, 2021 In this study, a preparation method for the high-temperature pressure sensor based on the piezoresistive effect of p-type SiC is presented. The varistor with a positive trapezoidal shape was designed and etched innovatively to improve the contact ...
Yongwei Li +6 more
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IEEE Access, 2019 In this paper, the spontaneous Rayleigh-Brillouin scattering spectra of air are simulated to study the effect of uncertainties of pressure, temperature, scattering angle and the characteristic parameter uncertainty of the Fabry-Perot interferometer on ...
Jingcheng Shang +7 more
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Ground Noise Survey at a Proposed Submarine Test Facility on Lake Travis [PDF]
, 1987 We conducted a brief survey of ground noise at a proposed submarine test facility on Lake Travis, northwest of Austin, Texas. The purpose of the survey was to find out the nature and level of the background seismic noise on the bottom of the lake at the ...
Nakamura, Yosio +2 more
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