Results 31 to 40 of about 883,471 (303)
Fishes, 2021 Invasive bigheaded carp are advancing up the Upper Mississippi River by passing through its locks-and-dams (LDs). Although these structures already impede fish passage, this role could be greatly enhanced by modifying how their spillway gates operate ...
Daniel Patrick Zielinski +1 more
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Gas-to-hydraulic power converter [PDF]
, 1982 A gas piston driven hydraulic piston pump is described in which the gas cycle is of high efficiency by injecting the gas in slugs at the beginning of each power stroke. The hydraulic piston is disposed to operate inside the as piston, and the two pistons,
Galloway, C. W.
core +1 more source
Advanced Engineering Materials, EarlyView.High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé +5 more
wiley +1 more source
Горные науки и технологии, 2019 The paper presents process layouts for excavation of zones near pit envelope based on the analysis of findings of the ore loss study in case of open-pit mining, as well as the results of field measurements in the quarry faces in Muruntau and Myutenbai ...
B. R. Raimzhanov +2 more
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Applied Sciences, 2022 This study examined the impact of mechanical oscillation on a hydraulic directional control valve. Particular attention was paid to the oscillating movement of the spool of the hydraulic directional control valve resulting from this impact.
Michał Stosiak +6 more
doaj +1 more source
Hydraulic actuator motion limiter ensures operator safety [PDF]
, 1971 Device regulates action of hydraulic linkage to control column to minimize hazard to operator. Primary components of device are flow rate control valve, limiter accumulator, and shutoff valve.
Steinmetz, C. P.
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Advanced Engineering Materials, EarlyView.The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan +4 more
wiley +1 more source
Mathematical Social Sciences, 2000 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +1 more source
Gyro spring augmentation system [PDF]
, 1972 Spring-loaded piston with provision for hydraulic control of spring action varies the stiffness of hydraulic control ...
Brandstetter, A. W., Danielson, H. D.
core +1 more source
Year-round variability of field-saturated hydraulic conductivity and runoff in tilled and grassed vineyards [PDF]
, 2017 The soil management adopted in vineyard inter-rows has a great influence on soil hydraulic properties, and, consequently, on runoff at the field scale.
Biddoccu, Marcella +4 more
core +2 more sources