Results 61 to 70 of about 8,424 (268)

Joint Simulation Research on Drilling String Lifting Device Based on AMESim and ADAMS

open access: yesShiyou jixie
As the drilling technology continues to develop, the requirements for conveying efficiency and automation level of drilling tool becomes increasingly high.
Song Binghao   +5 more
doaj   +1 more source

Hemodynamic evaluation of pulsatile-flow generating device in left ventricular assist devices

open access: yesВестник трансплантологии и искусственных органов, 2023
Objective: to investigate the efficiency of a device that generates pulsatile flow during constant-speed axial-flow pump operation for use in left ventricular assist devices.Materials and methods.
A. S. Buchnev   +4 more
doaj   +1 more source

Droplet Electricity Generators With Maximized Energy Collection Zone Enabled by Aloe‐Inspired Midrib and Cuticle

open access: yesAdvanced Materials, EarlyView.
An Aloe‐pinspired droplet electricity generator (A‐DEG) overcomes the limited energy collection zone of conventional DEGs by guiding impact droplets through a channeling midrib and artificial cuticle. The channeling midrib induces uni‐directional droplet spreading, while the artificial cuticle on the midrib further reinforces this behavior through its ...
Gibeom Lee   +8 more
wiley   +1 more source

Hemolysis in a continuous-flow ventricular assist device with/without chamfer

open access: yesAdvances in Mechanical Engineering, 2017
Ventricular assist device has been increasingly used in the treatment of end-stage heart failure, with a high incidence of hemolysis in clinical use, which is a serious problem to be solved.
Donghai Li   +5 more
doaj   +1 more source

A Porous Interfacial Photothermal Layer of Fused Core–Shell Carbon‐Polymer Nanospheres for Directional Salt Crystallization and Zero‐Liquid‐Discharge

open access: yesAdvanced Materials, EarlyView.
A hierarchical hydrogel evaporator with a thin, porous photothermal layer of fused core–shell carbon‐polymer nanospheres enables ultrafast interfacial solar evaporation with minimized heat loss and sufficient water supply. Directional advection‐dominated brine transport, coupled with Marangoni‐driven interfacial flow, drives salt away from the active ...
Haokun Shen   +11 more
wiley   +1 more source

Understanding Operando Water Management in Hydroxide‐Exchange‐Membrane Fuel Cells

open access: yesAdvanced Materials Interfaces, EarlyView.
Effective water management is vital for high‐performance hydroxide‐exchange‐membrane fuel cells. Using a custom water‐flux station, this study quantifies how membrane thickness, microporous layers, and operating conditions dictate internal water transport.
Catherine M. Weiss   +4 more
wiley   +1 more source

Development of integrative control device of belt conveyor

open access: yesGong-kuang zidonghua, 2013
In view of problems of many operating procedures and high labor intensity existed in process of belt-shrinking, tensioning and belt-winding of belt conveyor, an integrative control device of belt conveyor was designed.
XING Hai-long
doaj  

PRESENT-DAY METHODS OF POWER SUPPLY AND CONTROL OF PARALLEL OPERATING HYDRAULIC MOTORS AND DEVICES OF MINING, CONSTRUCTION AND ROAD MACHINES

open access: yesInterexpo GEO-Siberia, 2020
Methods of power supply and control of parallel operating hydraulic motors and devices having prospects of application in mining, construction and road machines are considered. Diagrams of present-day hydraulic systems of machines with LS/PC (LoadSensing/PressureCompensation) and PPPC (ProportionalPriorityPressureCompensation) control are presented ...
openaire   +1 more source

Field trials and development of a hydrostatic pressure machine [PDF]

open access: yes, 2013
Hydrostatic Pressure Machines (HPM), are a class of hydropower energy converter designed to operate at sites with heads below 3 meters; sites receiving increasing interest as the demand for power from renewable energy sources grows.The HPM is a ‘Pressure
Linton, Nicholas Paul
core  

Ultrafast (1‐5 sec) Lamination of Perovskite Solar Cells With Self‐Encapsulation Using Rapid Joule Heating

open access: yesAdvanced Materials Technologies, EarlyView.
Halide perovskite solar cells are fabricated with self‐encapsulation by lamination between two glass substrates using rapid Joule heating, yielding a 99% reduction in lamination time compared to previous studies. An 18% efficient cell is laminated in 5 s, demonstrating the potential for scalable manufacturing. ABSTRACT Perovskite solar cells (PSCs) are
Oluka Okia   +9 more
wiley   +1 more source

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