Results 21 to 30 of about 518,494 (282)

Experimental Study of the effects of Throttle valve on Auto-cascade Refrigeration System [PDF]

open access: yesProceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering, 2015
The objection of this article is to optimize auto-cascade refrigeration system. This refrigeration system use multiple mixture (R22/R23/R14) as the refrigerant, which is driven by the single-stage compressor. Throttle is an important composition of auto-cascade refrigerant system, which impact on evaporation temperature and refrigeration efficiency ...
Li Xiang   +6 more
openaire   +1 more source

Auto-tuning for cascade PID height position controller of rotorcraft [PDF]

open access: yesMATEC Web of Conferences, 2019
In this article, we present a method for tuning controller parameters for cascade PID based on the step response performance characteristics of a closed loop system with application to an unmanned aerial vehicle(UAV).
Liao Guiqiu, Zhao Jiankang
doaj   +1 more source

The Relation of Performance Parameters for a 150K Auto-Cascade Refrigeration System

open access: yesResearch Journal of Applied Sciences, Engineering and Technology, 2013
The performance parameters of a single compressed and four-stage segregating auto-cascade refrigeration system were developed in this study. The temperature of the cryogenic tank went down relatively slow with the evaporating temperature and the refrigerant temperature for W. When the state of system is steady, the suction pressure of the compressor is
XueLi Nie   +3 more
openaire   +1 more source

Research on control method of active disturbance quadrotor aircraf

open access: yesDianzi Jishu Yingyong, 2019
In order to solve the problem that the classical PID control algorithm can not adapt to the nonlinear controlled system,the robustness is weak and the anti-interference ability is poor,a control method was designed based on classical PID control and auto
Zhang Xiaoming, Yu Jiyan, Wang Kunkun
doaj   +1 more source

Molecular dynamics simulation of non-azeotropic refrigerants separation in auto-cascading refrigeration [PDF]

open access: yesE3S Web of Conferences, 2019
The core problem of auto-cascading refrigeration is the separation of non-azeotropic refrigerants. The separation effect of mixed refrigerant directly determines the refrigeration effect of auto-cascading refrigeration system and the value of COP. The microscopic molecular dynamics simulation method is applied to the refrigeration system, and the ...
Zheng Dayu   +3 more
openaire   +2 more sources

Performance assessment of a novel auto-cascade heat pump using low-GWP refrigerant for obtaining high-temperature water [PDF]

open access: yesInternational Journal of Fluid Engineering
With the aim of developing a high-temperature heat pump with a large temperature lift, a novel auto-cascade heat pump using low global warming potential (GWP) refrigerant is proposed. Owing to the large exergy destruction between the refrigerant and heat
Gang Yan, Yuqing Yang, Yinlong Li
doaj   +1 more source

Auto Clicker CS Amebaownd

open access: yes, 2023
Auto Clicker CS Amebaownd   Discover the ultimate gaming companion with Auto Clicker CS, a powerful tool to enhance your gaming performance. Website: https://autoclickercs.amebaownd.com/ Address: 284 Cong Hoa, Phuong 13, Quan Tan Binh, Thanh pho Ho Chi ...
Auto Clicker CS Amebaownd (16631775)
core   +1 more source

Dynamic modeling of Terahertz Quantum cascade lasers [PDF]

open access: yes, 2011
In this paper, the influence of the simplifications made in the four-equation-based set of rate equations describing the dynamic behavior of a Quantum Cascade Laser (QCL) is studied.
Petitjean, Yoann   +3 more
core   +1 more source

Phospho-regulation of the Neurospora crassa septation initiation network. [PDF]

open access: yesPLoS ONE, 2013
Proper cell division is essential for growth and development of uni- and multicellular organisms. The fungal septation initiation network (SIN) functions as kinase cascade that connects cell cycle progression with the initiation of cytokinesis.
Yvonne Heilig   +2 more
doaj   +1 more source

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