Relevant bibliographies by topics / Weir steel house

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Academic literature on the topic 'Weir steel house'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Journal articles on the topic "Weir steel house"

1

Christianson, L. E., R. D. Christianson, A. E. Lipka, S. Bailey, J. Chandrasoma, C. McCoy, G. Preza Fontes, et al. "Calibration of Stainless Steel-edged V-Notch Weir Stop Logs for Water Level Control Structures." Applied Engineering in Agriculture 35, no. 5 (2019): 745–49. http://dx.doi.org/10.13031/aea.13350.

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Abstract. Dependable flow rate measurements are necessary to calculate flow volumes and resulting nutrient loads from subsurface drainage systems and associated conservation practices. The objectives of this study were (1) to develop appropriate weir equations for a new stainless steel-edged 45° V-notch weir developed for AgriDrain inline water level control structures and (2) to determine if the equation was independent of flow depth in the structure. Weirs for 15 cm (6 in.) and 25 cm (10 in.) inline water level control structures were placed at three heights in each structure: at the base, 48 cm from the base, or 97 cm from the base, and the height of the nappe above the weir crest was recorded over a range of flow rates. The resulting data were fitted to equations of the form Q = aHb where Q is the flow rate, H is the height of the nappe above the weir crest, and a and b are fitted parameters. There were no significant differences in the fitted parameters across the two structure sizes or across the three weir placements. The fitted equation for these new stainless steel-edged V-notch weirs was Q = 0.011H2.28 with Q in liters per second and H in centimeters, and Q = 1.44H2.28, with Q in gallons per minute and H in inches. These equations can be used for measuring flow through AgriDrain in-line structures, although in-house weir calibration is highly recommended for specific applications, when possible. Keywords: Drainage, Flow monitoring, Subsurface drainage, V-notch weir, Weir calibration.
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2

Tyfour, Wa’il R., Mohammed T. Hayajneh, and Rania Hendawi. "Role of impact angle reversal on impact wear of mild steel." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 232, no. 2 (April 20, 2017): 97–105. http://dx.doi.org/10.1177/1350650117705978.

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Impact wear of mild steel has been studied in light of impact angle reversal. An in-house built, specially designed test rig has been used to facilitate test conditions, including impact angle reversal. Metallographic examination and scanning electron microscopy were used to analyze the morphology of impact surfaces. Results showed lower impact wear under condition involving impact angle reversal for the whole range of impact angles. Furthermore, multiple impact direction reversal showed significant impact wear reduction. Behavior has been explained in terms of failure due to plastic deformation accumulation.
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3

Sunuwar, Subas Chandra. "Nepal Earthquake 25 April 2015: Hydro projects damaged, risks and lessons learned for design considerations." Journal of Nepal Geological Society 55, no. 1 (June 4, 2018): 141–49. http://dx.doi.org/10.3126/jngs.v55i1.22804.

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The 25 April 2015 Nepal earthquake of magnitude 7.8 epicentre at Gorkha and magnitude 7.3 aftershocks on 12 May epicentre at Dolakha had devastating impacts on 14 districts including Kathmandu, capital city of Nepal. Death toll was nearly 9,000 and hundreds of thousands of inhabitants became homeless. The earthquake severely damaged mainly surface structures of hydro projects, access roads, clay mortar stone masonry houses and structurally weak concrete houses. Landslides, rock falls, debris flow, liquefaction, river damming, Landslides Dammed Outburst Flood (LDOF) and Glacial Lake Outburst Flood (GLOF) are expected earthquake-induced hazards. However, landslides and grounds shaking were responsible for major damaged. A total of 15 hydro projects in operations and under construction were affected by the earthquake. In hydro projects damages were recorded in surface structures such as power house, settling basin, penstock pipes, and diversion weir constructed at base of steep terrains. For instance, surface penstock pipe, lying at base of rock cliff, of running 40 MW Upper Bhote Koshi Project was ruptured by rock falls and as a result flooded surface powerhouse located downstream by water from penstock and headrace tunnel. Similarly, diversion weir, surface settling basin and headrace penstock pipe of running 5 MW Mialung Project were also severely damaged by slides and rock falls. On the other hand, only minor cracking of sprayed concrete at corners and protruded edges in underground structures were observed. In hydro projects, there is a practice of considering seismic load in design of structures but the effects of earthquake induced hazards were not foreseen. This devastating earthquake gave good lessons for design considerations of hydro projects in future. This article summarises earthquake damage, risks and lessons learned for Hydro projects in Nepal.
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4

KRAWIEC, Michał. "EVALUATION OF THE LUBRICATION EFFICIENCY OF GREASES ACCORDING TO CRITERION OF WEAR EXPERIMENTALLY DETERMINED AT VARIABLE VALUES OF MOTION PARAMETERS." Tribologia 273, no. 3 (June 30, 2018): 77–83. http://dx.doi.org/10.5604/01.3001.0010.6135.

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The results of tribological investigations into the lubrication efficiency of greases in steel sliding pairs working in mixed friction conditions are presented. The lubrication efficiency was evaluated according to the criterion of wear determined by tribological tests conducted at variable values of motion parameters: load F and sliding velocity v. Wear volume VF(d), calculated from wear regression equations (wear d = f(p,v), was adopted as the lubrication efficiency criterion. Five different commercial greases currently available on the market and one in-house grease (a compound of grease 1S and two solid greases (6% PTFE and 5% Cu)) were tested. The experiment was conducted in a four-ball tester at five levels in accordance with the rotatable experiment design. A regression function with interrelated ball wear d, sliding velocity v, and applied load F, was formulated for each of the tested greases. Wear volumes VF(d) were calculated and conclusions were drawn.
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5

Purkayastha, Surajit, and Dheerendra Kumar Dwivedi. "Slurry erosion performance of CeO2-modified Ni–WC coatings." Industrial Lubrication and Tribology 66, no. 4 (June 3, 2014): 533–37. http://dx.doi.org/10.1108/ilt-03-2012-0034.

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Purpose – This paper aims to deal with the study of effect of cerium oxide (CeO2) modification on the sand slurry erosion resistance of Ni – tungsten carbide (WC) coatings. Design/methodology/approach – Flame-sprayed conventional and CeO2-modified Ni–WC coatings were developed on a mild steel substrate. Slurry erosion tests were carried out in an in-house-designed and fabricated pot-type slurry erosion test rig to evaluate wear behavior of conventional and modified coatings. The erosive wear test was conducted using 5 per cent silica sand slurry at 850 rpm. Findings – Modified coatings exhibited increased hardness as compared to the conventional coating. Slurry erosion resistance of most modified coatings was superior to that of the unmodified coating. Hardness of coating doped with 0.9 per cent CeO2 was highest among all coatings, and concomitantly this composition also showed the least wear. Scanning electron microscopy (SEM) revealed that microcutting was much less in the modified coating. Originality/value – Slurry erosion wear of Ni–WC flame-sprayed coatings in sand slurry media is substantiated by extensive SEM study.
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6

Zhao, Lian Hua, Bao Ling Xie, and Li Hua Fan. "CR/EPDM Blends with Steel Friction and Wear Characteristics under Dry Sliding." Applied Mechanics and Materials 341-342 (July 2013): 291–95. http://dx.doi.org/10.4028/www.scientific.net/amm.341-342.291.

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CR is often used to make the foreskin material transport belts, wires, cables, and the manufacture of oil hose, gaskets, equipment and chemical resistant bushing. EPDM is often used to produce heat-resistant conveyor belts, cables, wires, anti-corrosion lining, gaskets, waterproof sheet, door and window seals, etc. The same hardness and different proportions of CR/EPDM blends with steel under dry friction pair as the research object to seek friction characteristics of different formulations of rubber with steel metal in the dynamic coordination. Friction test at a constant low load, constant temperature, the different mixing ratio of CR/EPDM blends, friction, wear, friction coefficient variation with engine speed. The test results to a reasonable choice of conveyor belts to improve the overall efficiency and life of rubber - metal friction pairs.
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7

Clark, L. D., M. T. Alonso Rasgado, K. Davey, and S. Hinduja. "Experimental Investigation Into the Thermal Behavior of Copper-Alloyed Dies in Pressure Die Casting." Journal of Manufacturing Science and Engineering 128, no. 4 (February 3, 2006): 844–59. http://dx.doi.org/10.1115/1.2280586.

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The rate of heat extraction during the pressure die casting process is central to both the quality and the cost of finished castings. Recent efforts to reduce the thermal resistance of dies by optimizing the effectiveness of the cooling channels have shown the potential for improvement. Reducing the thermal resistance of the coolant boundary layer means that a significant proportion of the total thermal resistance becomes attributable to the die steel. Further significant reductions in die thermal resistance can be obtained by replacing the steel with copper. This paper investigates the feasibility of using copper dies, reinforced with steel inserts and coated with a thin layer of wear resistant material, which is deposited using the thermal arc spray process. Experimental work relating to the thermal spray process has been undertaken to establish bond strengths and thermal conductivities for various process parameters. Moreover, experimental investigations have been carried out using two copper coated dies, the first of which was a pseudodie block heated by an infrared heater. The second die was tested on a die casting machine and produced zinc alloy castings at a greatly increased production rate when compared to its steel counterpart. The experimental results from the two dies are compared with those predicted by an in-house thermal-cum-stress model based on the boundary element method. Reasonable agreement between the predicted and experimental results is shown and the feasibility of copper-alloyed dies for pressure die casting is established.
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8

Muthuraja, Ayyankalai, and Selvaraj Senthilvelan. "Performance evaluation of a tungsten carbide–based self-lubricant cutting tool." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 232, no. 10 (December 1, 2016): 1825–36. http://dx.doi.org/10.1177/0954405416681822.

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Tungsten carbide cutting tools with and without solid lubricant (WC-10Co-5CaF2 and WC-10Co) were developed in-house via powder metallurgy. The developed cutting tools and a commercial WC-10Co cutting tool were used to machine cylindrical AISI 1020 steel material under dry conditions. The cutting force and average cutting tool temperature were continuously measured. The cutting tool flank surface and chip morphology after specific tool life (5 min of cutting) were examined to understand tool wear. The flank wear of the considered cutting tools was also measured to quantify the cutting tool life. The surface roughness of the workpiece was measured to determine the machining quality. The developed cutting tool with solid lubricant (WC-10Co-5CaF2) generated 20%–40% less cutting force compared to that of the developed cutting tool without solid lubricant (WC-10Co). In addition, the finish of the workpiece surface improved by 16%–20% when it was machined by the solid lubricant cutting tool. The cutting tool with solid lubricant (WC-10Co-5CaF2) exhibited a 15%–18% reduction in flank wear. Curlier and smaller saw tooth chips were generated from the WC-10Co-5CaF2 cutting tool, confirming that less heat was generated during the cutting process, and the finish of the machined surface was also improved.
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9

Izhan, M. I., Jazair Yahya Wira, Mohammed Rafiq Abdul Kadir, and Samion Syahrullail. "Experimental Study on the Effect of Different Speeds Applied with Palm Olein Using Pin-on-Disk Tester." Applied Mechanics and Materials 315 (April 2013): 946–50. http://dx.doi.org/10.4028/www.scientific.net/amm.315.946.

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The wide use of conventional lubricants causes pollution to the environment and the rising awareness on green house effect has triggered the use of environmental friendly and biodegradable lubricants in the industries. Palm olein was selected to be a candidate due to its superior tribological properties and large production in country. In the research, the behavior of palm olein characteristic was investigated by using pin-on-disk experiment in which the pin was loaded against the rotating grooved disk. The experiments by sliding were performed via pin on disk tester using stainless steel as the material for both flat ended pin and grooved disk. The test were carried out by dropping 5 ml of palm olein as lubricant on the sliding surface at two different speeds which were 0.25 and 1 m/s. In this study, the wear rate of the pin and friction coefficient was investigated. The weight loss and surface roughness before and after experiment were analyzed. All the results obtained were compared to hydraulic oil and paraffinic mineral oil. From the analysis, friction coefficient acquired with lubrication of palm olein was the lowest for both conditions, while the wear rate obtained also showed a similar trend. The pin lubricated with palm show the lowest result of wear rate and weight loss.
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10

Back, Willem, Maaike HM van Schie, and Jessica N. Pol. "Synthetic shoes attenuate hoof impact in the trotting warmblood horse." Equine and Comparative Exercise Physiology 3, no. 3 (August 2006): 143–51. http://dx.doi.org/10.1017/ecp200691.

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AbstractImpact is considered the most critical part of the stance phase for the development of chronic articular disorders such as osteoarthritis in the equine distal limb. Modern, synthetic shoeing materials are believed to modify impact and therefore are often used to treat an/r prevent lameness due to chronic joint disorders. Scientific evidence is scarce, however, to prove this. Hoof impact of forelimb was compared quantitatively in a group of horses under three conditions: unshod, classical steel shoes and shod with a synthetic shoe. Twelve sound warmblood horses were trotted by hand on an asphalt track at a mean speed of 3.5ms−1 and measured in a Latin square design (unshod condition, with steel shoes and with polyurethane (PU) shoes) using a triaxial accelerometer that had been fixed to the lateral hoof wall of the left forelimb. The sampling frequency was set at 10kHz per channel. The maximum amplitude of vertical and horizontal, forwar/ackward accelerations at hoof impact was lowest when shod using the PU shoeing condition (P<0.05), but the duration of the impact vibrations was lowest when unshod. PU shoes cause more damping, less friction and slower shock absorption at hoof level compared with the other two conditions and thus modify impact. Synthetic, polyurethane shoes may help in reducing peak vibrations. These short-term effects appear to be promising enough to evaluate PU shoes under field conditions in reducing impact on the longer term after substantial wear and tear. Furthermore, the possible role of synthetic materials in repairing critical tissues or even in preventing osteoarthritis in horses warrants further investigation.
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Books on the topic "Weir steel house"

1

Commons, Canada Parliament House of. Bill: An act to supervise and control th[e] warehousing, inspecting and weig[h]ing of grain in Manitoba and th[e] North-west Territories. Ottawa: S.E. Dawson, 2003.

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Establishment, Building Research. Weir Steel-clad Houses (1920's). IHS BRE, 1992.

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Conference papers on the topic "Weir steel house"

1

Amils, Xavier, Beste Durmus, Paul Smeets, Jorn Boesten, and Peter Davies. "Increasing Water Depth Window for Moored Subsea Structures and Operations With Low Weight Hybrid Ropes." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-11460.

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This paper introduces new hybrid wire rope concepts by combining steel wire and UHMWPE fibers. These novel High Modulus Hybrid Ropes (HMHR) result in enhanced strength and significant reduction of linear weight compared to steel wire rope (SWR) of equivalent constructions. Compared to fiber ropes (FR) this new family of ropes shows increased protection against crushing, fretting and wear. In-house and independent laboratory tests showed increased breaking load / weight advantages compared to SWR, while also revealing improved bending fatigue resistance. Additionally, test results show similar axial stiffness and torque performance to SWR, which can be modeled by using analytical algorithms. Furthermore creep rate of these ropes is comparable to that of SWR. Finally, the authors discuss the expected performance of these ropes working in deep waters and under high load conditions in offshore and subsea systems. Additional work required to validate and introduce these ropes in the industry is addressed as well.
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