نتایج جستجو برای: hydraulic equipment

تعداد نتایج: 104813  

Journal: :Applied sciences 2021

Coupling systems play a vital role in hydraulic power transmission equipment. In recent years, flat-face coupling have been extensively studied due to their environment friendly features. The difficulty of the connection process equipment increases with increase working pressure. To improve convenience making high-pressure connections, novel system is proposed this article. design, which based ...

Ali Asghar Hamidi Ali Reza Kamizi Asghar Sedighzadeh Monireh Taherkhani

In this investigation, the performance of a tower for absorption of sulphur dioxide gas into calcium carbonate solution has been studied. The trays had no downcomer and the tower itself was a scaled down pilot from industrial equipment. The industrial scale tower was used for clean up of 110000 m3/hr gas using 40 m3/hr alkaline solution. The study was composed of two parts. In the first section...

Journal: :MM Science Journal 2022

The article deals with an example of a non-invasive measurement the system. proposed system is suitable in cases where equipment analysed must be monitored without interrupting its function. demonstration can serve as proof concept monitoring state moving parts technical systems, such hydraulic pumps, pressure pumping stations, and large ventilation mechanical damage prediction very important b...

2005
Junfeng Zhu Tian-Chyi J. Yeh

[1] Hydraulic tomography is a cost-effective technique for characterizing the heterogeneity of hydraulic parameters in the subsurface. During hydraulic tomography surveys a large number of hydraulic heads (i.e., aquifer responses) are collected from a series of pumping or injection tests in an aquifer. These responses are then used to interpret the spatial distribution of hydraulic parameters o...

1998

INTRODUCTION: The calculation of Manning n values has been of interest since the Manning equation was presented in the late 1800s (Henderson, 1966). While estimation of n vahm for normal channels has been fairly well standardized, the estimation of n values in areas of dense vegetation continues to be subject to large variations depending on the experience of the engineer and the perceived dens...

2004
J S CLAYTON T P Y SANDER

The use of aircraft to control important vector borne disease outbreaks through the selective application of pesticides continues to play a vital role in preventing the spread of disease in many parts of the world. The deployment of aircraft allows health authorities to treat large areas rapidly to reduce the presence of invertebrate disease vectors such as mosquitoes, flies and molluscs that t...

2013
Min-Sung Kang Myeongsu Gil Seunghoon Lee Dongsu Shin Jung Soo Han

Excavation and earthmoving equipment mostly operate in accident-prone areas. These areas normally have rollover, confinement, and fall or may be considered harmful work areas due to demolitions and sewage removals. It is inevitable that excavation and earthmoving systems should be developed to secure the safety of operators through unmanned and remote control systems. Therefore, this research p...

Journal: :Actuators 2023

Hydraulic support is important equipment in the fully mechanized mining face, and control performance of hydraulic multi-cylinder system directly affects smooth progress coal process, which basis for continuous advancement face. However, friction force process pulling frame complex due to underground environmental load. Moreover, parameters moving cylinder are uncertain, state cannot be measure...

2006
S. Gruetzmann G. Niggemann G. Fieg

Batch distillation is one of the most important unit operations for the small-scale production of specialty and fine chemicals. The so called Middle Vessel Batch Distillation (MVBD) with total reflux offers many advantages compared to conventional batch distillation. It is favourable due to the simultaneous production of three products of high purity. In this work, we present a thorough analysi...

2011
Dongnam Kim Kyeong Won Oh Namhoon Kim Baeksuk Chu Daehie Hong Yoon Ki Kim

The number of dismantling sites for buildings has been rapidly increased and these processes are very dangerous. So many research papers have been published addressing the development of a remote controller for the dismantling equipments. In this paper, a novel concept of applying haptic control is proposed for the remote control of excavator-like dismantling equipment. As a haptic device syste...

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