Results 11 to 20 of about 2,043,487 (317)

Analysis of Entropy Generation and Potential Inhibition in an Aeroengine System Environment

open access: yesInternational Journal of Aerospace Engineering, 2022
From a system perspective, the entropy generation of an aeroengine is directly related to the thermal efficiency when the Brayton cycle pressure ratio and maximum temperature remain constant.
Xiaojing Liu   +6 more
doaj   +1 more source

Evaluation system of multi-channel audio signal based on FPGA

open access: yesDianzi Jishu Yingyong, 2022
A six-channel audio signal evaluation system based on FPGA is designed and implemented.64 kS/s 16-bit analog-to-digital converter(ADC) AD73360 is used to sample common-used audio signals.
Zhang Haoran   +3 more
doaj   +1 more source

The impact of variants and vaccination on the mortality and resource utilization of hospitalized patients with COVID-19

open access: yesBMC Infectious Diseases, 2022
Background COVID-19 outcomes among hospitalized patients may have changed due to new variants, therapies and vaccine availability. We assessed outcomes of adults hospitalized with COVID-19 from March 2020–February 2022.
Maria Stepanova   +18 more
doaj   +1 more source

Design and simulation of vehicle entry detection circuit based on ground induction coil

open access: yesDianzi Jishu Yingyong, 2022
In the field of traffic Internet of Things, there is a business demand for road traffic flow information monitoring. The ground sensing coil is arranged on the road to sense the information of vehicles entering and provide initial data for the traffic ...
Zhou Ya, Dai Wei, Zhang Xin, Xu Li
doaj   +1 more source

Integrity of Integrated Navigation Systems [PDF]

open access: yes2018 IEEE Conference on Communications and Network Security (CNS), 2018
Computerized systems are revolutionizing modern ships’ bridges and maritime operations. Central components in this are Integrated Navigation Systems (INS) and Electronic Chart Display and Information Systems (ECDIS) which provide the maritime navigator with the ship’s position and displays it in electronic charts.
Lund, Mass Soldal   +4 more
openaire   +4 more sources

Een archeologisch bureauonderzoek (BO)

open access: yes, 2022
In opdracht van RPS- Advies en Ingenieursbureau heeft EARTH Integrated Archaeology in juli 2021 een archeologisch bureauonderzoek uitgevoerd in plangebied Sourethweg, gemeente Heerlen.
Rumping, MSc S (EARTH Integrated Archaeology)   +2 more
core   +2 more sources

PERFORMANCE EVALUATION OF A LIGHT-WEIGHT MULTI-ECHO LIDAR FOR UNMANNED ROTORCRAFT APPLICATIONS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
The paper presents a light-weight and low-cost airborne terrain mapping system. The developed Airborne LiDAR Scanner (ALS) system consists of a high-precision GNSS receiver, an inertial measurement unit and a magnetic compass which are used to ...
G. Conte   +5 more
doaj   +1 more source

Identifying prospective frequent readmitters for hospital to home intervention using machine learning

open access: yesInternational Journal of Integrated Care, 2019
Introduction: Singapore is a developed country with a population of 5.6 million and an acute-centric healthcare system. While the acute hospitals deliver extensive care, patients with multiple care needs face challenges in managing their conditions post ...
Andy Ta   +18 more
doaj   +1 more source

Research of the influence of crystal oscillator on EMC in RF module

open access: yesDianzi Jishu Yingyong, 2023
This paper proposes a SoC chip clock scheme and designs two layout schemes. By analyzing the causes of electromagnetic interference and judging the simulation results of the isolation degree between signals, the risk of inter-signal interference in the ...
Ma Shijuan, Xiao Yongping, Ni Xiaodong
doaj   +1 more source

A Collaborative Governance Strategy for Power Quality in AC/DC Distribution Networks Considering the Coupling Characteristics of Both Sides

open access: yesSensors, 2023
The interactions between power quality in the AC-DC distribution network segments contribute to the distributed propagation of power quality anomalies throughout the entire network.
Jiang Wang   +6 more
doaj   +1 more source

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