Results 31 to 40 of about 1,099,031 (268)

Effect of blade number on flow around straight-bladed vertical axis wind turbine

open access: yesNihon Kikai Gakkai ronbunshu, 2014
The influence on performance during the revolution of a straight-bladed vertical axis wind turbine (VAWT) is discussed, focusing on the effect of the blade number.
Qing'an LI   +6 more
doaj   +1 more source

Analysis and Experiment on the Seed Metering Mechanism of Multi-Grain Cluster Air Suction Type Rice (Oryza sativa L.) Hill Direct Seed Metering Device

open access: yesAgriculture, 2022
This paper aims to solve the problem of high reseeding rates and mis-seeding rates in the rice multi-grain hole direct seeding process. A multi grain cluster air suction type rice hill direct seed metering device was developed, and its seeding mechanism ...
Han Tang   +7 more
doaj   +1 more source

Simplified polyp-canal system of stony coral Seriatopora hystrix protects its branching areas in the flow field

open access: yesFrontiers in Marine Science
The polyp-canal system is vital for the growth, budding, and mineralization of scleractinian corals. Seriatopora hystrix displays a unique structural trait, with its calices and canals making up only about 15% of the colony volume, lower than the 40-50 ...
Yixin Li   +4 more
doaj   +1 more source

Experimental study and comparison of various designs of gas flow fields to PEM fuel cells and cell stack performance

open access: yesFrontiers in Energy Research, 2014
In this study, a significant number of experimental tests to PEM fuel cells were conducted to investigate the effect of gas flow fields on fuel cell performance.
Hong eLiu   +4 more
doaj   +1 more source

Characteristics Analysis of Fluid Flow and Heating Rate of a Molten Bath Utilizing a Unified Model in a DC EAF

open access: yesMetals, 2022
Herein, a 2D unified model coupling a plasma arc–molten bath–cavity in a direct current electric arc furnace was developed for a characteristic analysis of the fluid flow and heating rate of the molten bath. The ‘local thermodynamic equilibrium–diffusion
Conglin Yao   +3 more
doaj   +1 more source

Bridging the Gap in Neuroblastoma Care: Consensus‐Based Statements With Recommendations for Improved Patient and Caregiver Experiences

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Neuroblastoma's complex, heterogeneous biology poses significant diagnostic and therapeutic challenges, often requiring caregivers to absorb complex information and participate in time‐sensitive decisions. However, caregivers often feel unprepared to evaluate options.
Vickie Buenger   +8 more
wiley   +1 more source

Wind Tunnel Simulation Study of Flow and Diffusion Around a Building Under Neutral and Stable Thermal Stratification

open access: yesTaiyuan Ligong Daxue xuebao, 2021
The flow and diffusion around a building under neutral (Rib=0) and stable stratification (Rib=0.057) conditions were investigated by wind tunnel experiment.
Yunpeng LI   +4 more
doaj   +1 more source

Consensus Standards and Recommendations for Developmental and Cognitive Surveillance, Screening, and Evaluation in Sickle Cell Disease: Executive Summary From the National Alliance of Sickle Cell Centers Neurocognitive Workgroup

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Neurodevelopmental and neurocognitive difficulties are prevalent among individuals with sickle cell disease and warrant prompt identification and support. This Special Report provides an executive summary of standards and recommendations for surveillance, screening, and evaluation for development and cognition across the lifespan developed by ...
Alyssa M. Schlenz   +12 more
wiley   +1 more source

Research on Measurement Error Distribution and Optimization Measurement Method of Clamp-On Ultrasonic Flowmeter in Downstream Pipeline Disturbance

open access: yesSensors
Clamp-on ultrasonic flowmeters serve as an important tool for on-site testing of gas flow meters. However, its accuracy is significantly affected by the actual flow field, thus limiting its application scenarios. To address this issue, this study focuses
Zhongzhi Yang   +5 more
doaj   +1 more source

The Hydrodynamic Characteristics Induced by Multiple Layouts of Typical Artificial M-Type Reefs with Sea Currents Typical of Liaodong Bay, Bohai Sea

open access: yesJournal of Marine Science and Engineering, 2021
Artificial reefs are effective measures to improve the marine ecological environment and increase fishery production. However, there are several geometries being investigated nowadays and their setup, including the spacing between groups of them, can ...
Anping Shu   +7 more
doaj   +1 more source

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