Results 11 to 20 of about 182,598 (263)

Design Method of Center Pipe Embedded in Reverse Circulation Sampling Pipe Used in Coal Mine

Meikuang Anquan, 2020
Based on the classification and principle of pneumatic conveying system, the technical characteristics of reverse circulation fixed-point sampling device in underground coal mine are analyzed.
ZHANG Rui
doaj   +1 more source

Reversal of pulmonary circulation

The Journal of Thoracic and Cardiovascular Surgery, 1975
The preliminary results and the technique of total reversal of the pulmonary circulation (RPC) are presented. Total RPC is technically feasible and not incompatible with life. It affords a new experimental model for in vivo study of pulmonary pathophysiology.
T J, Dosis, F, Thevoz, D L, Fisher, M H, Adatepe, P, Merkow, G J, Magovern   +5 more
openaire   +2 more sources

Reverse Circulation Drilling Method Based on a Supersonic Nozzle for Dust Control

Applied Sciences, 2016
To reduce dust generated from drilling processes, a reverse circulation drilling method based on a supersonic nozzle is proposed. The suction performance is evaluated by the entrainment ratio.
Dongyu Wu, Kun Yin, Qilei Yin, Xinxin Zhang, Jingqing Cheng, Dong Ge, Pengfei Zhang   +6 more
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Experimental and Numerical Study on Air Flow Behavior for a Novel Retractable Reverse Circulation Drill Bit of Casing-while-Drilling (CwD)

Geofluids, 2021
A reverse circulation Down-The-Hole (DTH) hammer drill bit in Casing-while-Drilling (CwD) processes is designed and applied to drilling under complicated formation.
Bo Qi, Pinlu Cao, He Yang, Wenbo He, Mengke Wang, Baoyi Chen, Kun Bo, Zhichuan Zheng   +7 more
doaj   +1 more source

Reversing bottom circulation in the Somali Basin [PDF]

Geophysical Research Letters, 2000
Two sets of direct velocity measurements were taken, concurrent with hydrographic data, in the bottom waters of the northern Somali Basin in June and September, 1995. The velocities indicate a temporal flow reversal in the bottom circulation, which is consistent with the changing density structure between the sections.
Molinari, R.L., Beal, L.M., Chereskin, T.K., Robbins, P.E.   +3 more
openaire   +2 more sources

Study on the Effect of the Water Injection Rate on the Cavern Leaching Strings of Salt Cavern Gas Storages

Energies, 2022
In the early construction of cavern leaching in salt cavern gas storages, the inner leaching tubing is often blocked, frequently leading to the bending deformation phenomenon of the leaching strings, which can result in out-of-control cavity shapes.
Shengwei Dong, Taian Fang, Jifang Wan, Xuhui Hu, Jingcui Li, Hangming Liu, Dongyang Li, Shaofeng Qiao   +7 more
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THE REVERSAL OF THE CIRCULATION IN A LIMB

Annals of Surgery, 1906
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Carrel, Alexis, Guthrie, C. C.
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A Study of Reversal of the Circulation in the Lower Extremity [PDF]

Southern Medical Journal, 1915
The operation for reversal of the circulation in the lower extremity, or arteriovenous anastomosis, began to receive attention soon after blood-vessel suturing was put on a stable basis by the work of Carrel and others a little more than a decade ago. Certain cases of gangrene of the foot and leg are caused by gradual occlusion of the arteries in the ...
openaire   +1 more source

Orthogonal experimental research on the structural parameters of a novel drill bit used for ice core drilling with air reverse circulation

Journal of Glaciology, 2019
A new type of ice core drill bit, designed with a vane swirler, was developed for ice core drilling with air reverse circulation. An orthogonal experimental design method was employed to investigate the effects of the swirler structure parameters on the ...
Pinlu Cao, Qi Zhao, Zhuo Chen, Hongyu Cao, Baoyi Chen   +4 more
doaj   +1 more source

Reversal of Hepatic Venous Circulation in Dogs

Annals of Surgery, 1958
Conclusions1. Dogs survive for prolonged periods, at least 57 days, following reversal of their hepatic venous circulation. 2. Crimped teflon vascular prostheses remain patent in these low pressure venous systems and function satisfactorily enough to achieve objectives of this experiment. 3. This experimental preparation is presented as one potentially
C G, CHILD, E F, McDONOUGH, G C, DESROCHERS   +2 more
openaire   +4 more sources