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1161
Research on Modeling and Solving of Shield Tunneling Posture based on Homogeneous Transformation Matrix
Published 2021-02-01“…According to the constraints of the length of each hydraulic cylinder rod, the mathematical model of the inverse posture solution is established, and the positive and negative solutions of the posture are solved in Matlab. …”
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1162
TEORETHICAL EVALUATION OF ANTHROPOGENIC RISKS IN TAZLAU RIVER BASIN
Published 2016-06-01“…The expanding of settlements along the rivers and building of modern communication routes along beds favored the phenomena of flooding and destruction of hydraulic works. These all aspects led to frequent occurrence of risk events: erosions, landslides, degradation of the rivers beds, pollution of air, water, vegetation, soil, etc. …”
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1163
Alimentation et gestion de l’eau sur la colline de Fourvière à Lyon : les aménagements hydrauliques, la ville et ses monuments
Published 2023-12-01“…Their construction in the middle of the 1st century AD and the commissioning of the aqueduct at the same time are probably related.The available data, which is dispersed and often old, needs complete revision, but the many contributions of preventive archaeology on the hydraulic structures as well as on the urban occupation of the hill will enlighten us in the coming years. …”
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1164
L’alimentation hydraulique de Saint-Romain-en-Gal (Rhône), quartier de Vienne antique (Isère)
Published 2023-12-01“…To this end, the combined study of hydraulic facilities and roads has proven essential. …”
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1165
Water quality characteristics of municipal wastewater treatment plants and the prospect of reclaimed water utilization in lower-middle income and water-scarce areas: A case study o...
Published 2025-01-01“…Operational data from 20 municipal wastewater treatment plants (WWTPs) in 2023 were analyzed to assess water quality parameters, treatment efficiencies, and hydraulic load rates. Results indicate the seasonal variation in hydraulic load rates, probably affected by heavy rainfall during the rainy season, which posed operational challenges for WWTPs. …”
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1166
DYNAMIC MECHANICAL BEHAVIOR AND CONSTITUTIVE MODEL OF FV520B MARTENSITIC PRECIPITATION-HARDENING STEEL
Published 2018-01-01“…In order to obtain the dynamic mechanical properties of FV520 B martensitic precipitation-hardening steel,quasistatic and dynamic compression test of cylinder samples with different temperatures( 20 ℃,100 ℃,300 ℃,500 ℃,700 ℃respectively) and strain rates( 0. 001 s<sup>-1</sup>,1000 s<sup>-1</sup>,3000 s<sup>-1</sup>,6000 s<sup>-1</sup> respectively) were performed by Instron hydraulic testing machine and Split Hopkinson Pressure Bar( SHPB). …”
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1167
Measurement of Membrane Characteristics Using the Phenomenological Equation and the Overall Mass Transport Equation in Ion-Exchange Membrane Electrodialysis of Saline Water
Published 2012-01-01“…In this investigation, the overall membrane pair characteristics (overall transport number 𝜆, overall solute permeability 𝜇, overall electro-osmotic permeability 𝜙 and overall hydraulic permeability 𝜌) were measured by seawater electrodialysis changing current density, temperature and salt concentration, and it was found that 𝜇 occasionally takes minus value. …”
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1168
PID Controller of Sprayer Chassis by Sliding Mode
Published 2017-01-01“…In order to solve the straight line drive coordinated control problem of the four-wheel independent drive sprayer chassis, the dynamic model of sprayer chassis and electromagnetic proportional valve controlled hydraulic motor model are established. The additional yaw moment is designed to rectify the deviation with sliding mode variable structure control. …”
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1169
High-cycle notch sensitivity of alloy steel ASTM A743 CA6NM used in hydrogenator turbine components
Published 2010-10-01“…The presence of notches and other stress concentrations in turbine blades and other notch hydraulic components is a current problem in engineering. …”
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1170
Caractérisation biophysique des milieux situés à l’amont des seuils en rivière : l’écotone retenue de seuil
Published 2022-04-01“…The weir pools are the spaces formed by the raising of the water line and the slowing of the current caused by weirs, overflowing hydraulic structures, generally of small dimensions, very widespread in contemporary rivers. …”
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1171
Method, Design, and Evaluation of an Exoskeleton for Lifting a Load In Situ
Published 2021-01-01“…In this design, the hydraulic cylinder for shoulder assistance, the motor for elbow assistance, and the spring for lower limb assistance were calculated and selected according to the motion and torque of each joint. …”
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1172
内啮合齿轮泵隔离装置的平衡
Published 2021-01-01“…In order to achieve a higher volumetric efficiency of an internal gear pump at higher pressures,a new isolation device with a compensating function in the diameter direction was developed.The device used a technical method of expanding high pressure chamber inside the pump.In order to obtain a better balance for the isolation device,according to the pressure distribution law of the transition zone,the calculation formulas of hydraulic pressure,the compensation force and the supporting force of the crescent block in the transition zone of the crescent block were derived,and then the equilibrium constraints of the device were established.The transition zone was enlarged until only two gear teeth.As an example,the fmincon tool was used to obtain the optimum center angle of the compensation cavity,and the force changes curve was obtained by MATLAB simulation.When an internal gear pump with a theoretical displacement of 50.8 ml/r was carried out under the condition of input pressure of 0.3 MPa,output pressure of 21.8 MPa,at 50℃ ±4℃,and the results show that the volumetric efficiency can reachs 94.3%.No abnormal wear was observed.…”
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1173
Investigation on the Combined Effect of Fibers and Cement on the Mechanical Performance of Foamed Bitumen Mixtures Containing 100% RAP
Published 2016-01-01“…In addition, according to previous research studies, incorporating various types of fibers and hydraulic binders such as cement could significantly improve the mechanical performance of mixtures. …”
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1174
Study on Spacing Threshold of Nonsubmerged Spur Dikes with Alternate Layout
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1175
High-cycle notch sensitivity of alloy steel ASTM A743 CA6NM used in hydrogenator turbine components
Published 2013-04-01“…The presence of notches and other stress concentrations in turbine blades and other notch hydraulic components is a current problem in engineering. …”
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1176
Les Agences de l’eau et la restauration : 50 ans de tensions entre hydraulique et écologique
Published 2016-05-01“…The results underline a tension between hydraulic and ecological conceptions of restoration. …”
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1177
Infraestrutura de mobilidade urbana e sua articulação com a drenagem sustentável
Published 2019-12-01“…The most common three types of coatings were interlocked pavements (41.47%), inloco molded concrete (21.75%), and hydraulic tile (13.57%). Such constructed areas can be adapted to compose an Urban Sustainable Drainage System, whose techniques allow the infiltration of water in the soil, reducing the interferences in the natural water cycle.…”
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1178
Les liens entre la société, la nature et la technique durant les derniers 200 ans : analyse dans deux vallées françaises
Published 2015-12-01“…The 1856 floods that affected the Rhône valley favored habitants exodus from valleys and mountain to urbanized area, hydraulic planning and indirectly contributed to accelerate the new social, economic and technological organization often called “industrial revolution”. …”
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1179
Parametric Design and Motion Simulation Analysis of Non-circular Gear Planetary Gear Train
Published 2021-08-01“…Non-circular gear planetary gear train is the core component of non-circular gear hydraulic motor, and its pitch curve design is the key to the overall structure design. …”
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1180
Component Analysis of Unsteady Hydrodynamic Force of Closed-Type Centrifugal Pump with Single Blades of Different Blade Outlet Angles
Published 2015-01-01“…Therefore, the radial thrust on the hydraulic part was significantly higher for impellers with high blade outlet angles.…”
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