Results 131 to 140 of about 83,680 (310)

Continuous Synthesis of Carbon‐Coated Na3V2(PO4)3 by Segmented Flow Tubular Reactor

open access: yesSmall Methods, EarlyView.
ABSTRACT Scaling‐up the synthesis of materials via hydrothermal and solvothermal routes is a long process and usually involves time‐ and cost‐intensive parameter optimization. The solution to this challenge is continuous synthetic approaches. In this study, we present an easily scalable, continuous synthesis approach for the sodium ion battery cathode ...
Samuel Franz Gatti   +4 more
wiley   +1 more source

Preliminary design of an auxiliary power unit for the space shuttle. Volume 5: Selected system cycle performance data [PDF]

open access: yes
Detailed cycle steady-state performance data are presented for the final auxiliary power unit (APU) system configuration. The selection configuration is a hydrogen-oxygen APU incorporating a recuperator to utilize the exhaust energy and using the cycle ...
Burriss, W. L., Hamilton, M. L.
core   +1 more source

In Situ Investigation of Microstructure Evolution and Stress Generation During Low‐Pressure Carburizing and Quenching by Means of Synchrotron X‐Ray Diffraction

open access: yessteel research international, EarlyView.
This study uses in situ synchrotron X‐ray diffraction at the German Electron Synchrotron to analyze low‐pressure carburizing (LPC) in steels. The findings reveal surface carbon saturation and carbide formation kinetics, and phase‐specific stress development during quenching. The results show carbide kinetics depend on steel grade and size, while stress
Ogün Baris Tapar   +6 more
wiley   +1 more source

A Multi‐Node Wearable Monitoring System for Firefighters With Edge AI and LoRa‐BLE Heterogeneous Communication

open access: yesSafety Science and Technology, EarlyView.
A multinode wearable system tailored for firefighters is presented, featuring LoRa‐BLE heterogeneous communication and edge‐side deep learning. It integrates a lightweight 1D‐CNN for real‐time posture recognition and an adaptive Physiological Strain Index (aPSI) model, ensuring reliable status monitoring and safety warning in complex fireground ...
Chongyuan Ni   +8 more
wiley   +1 more source

CFD-FEM Analysis for Functionality Prediction of Multi-Gear Pumps

open access: yesDesigns
A comprehensive model for evaluating the functionality of a multi-gear pump has been developed. The integrated model for assessing the functionality of a multi-gear pump contains a computational fluid dynamics analysis (CFD) model combined with a finite ...
Olga Zharkevich   +6 more
doaj   +1 more source

Tractor Test 1837C: New Holland Boomer 4055 [PDF]

open access: yes, 2004
ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications ...
Nebraska Tractor Test Lab,
core   +1 more source

The Trajectory of an Agreement: Tracing Objectivated Knowledge Across a Series of Mundane Encounters

open access: yesSymbolic Interaction, EarlyView.
This article adds to the sociological study of time and temporality in everyday life by building on recent longitudinal developments within conversation analysis. It investigates members' methods to bring about change within their shared (life) world. It examines how, as part of an extended project of action, one agreement made early on is continually ...
Sarah Hitzler, Jonas Kramer
wiley   +1 more source

Design of an advanced 500-hp helicopter transmission [PDF]

open access: yes, 1983
High contact ratio spar gears planetary, spiral besel gears, bearings, investment-cast planet carrier, and investment cast stainless-steel housings are ...
Battles, R. A., Braddock, C. E.
core   +1 more source

Hunting and fishing harvest data collection: a horizon scanning exercise from the French context

open access: yesWildlife Biology, EarlyView.
Legal and societal moves increasingly lead leisure hunting and fishing practitioners to record their harvest. The total number of individuals harvested per population per year is the minimum required information to feed into demographic models and allow science‐based management. Some few schemes record more detailed data, hence allowing better‐informed
Matthieu Guillemain   +17 more
wiley   +1 more source

高黏度齿轮泵性能试验研究

open access: yesJixie chuandong, 2008
The experience formula for calculation of input shaft power and limit rotational speed of TGC type high viscosity gear pump is established based on the performance test of TGC2800,to provide the basis of design and application of the TGC type high ...
张旭东   +5 more
doaj  

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