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1141
2D-statement simulation of thermogasdynamic processes in a rotary-blade engine with external heat supply
Published 2024-12-01“…The heat transfer process in the engine heat exchangers was modeled using the volumetric heat transfer coefficient, and their hydraulic resistance was also taken into account. The results of the study of heat and mass transfer processes in the engine were presented in the form of cyclograms and indicator diagrams. …”
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1142
ROTATING MACHINERY DEGRADATION STATUS IDENTIFICATION BASED ON BI-OBJECTIVE OPTIMIZATION GENETIC ALGORITHM AND SVM
Published 2021-01-01“…The performance of proposed method was verified by the experiment on the data set of hydraulic pump degradation state and the comparison with FRESH<sub>P</sub>CAa, ReliefF and JMIM on the case western reserve university bearing data set.…”
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1143
Annual Characteristics of Runoff and Sediment in West River and North River Delta and Their Influencing Factors
Published 2023-01-01“…The analysis of annual characteristics of runoff and sediment based on the monthly measured hydrological data of Makou Station and Sanshui Station in the West River and North River delta over the past 50 years.It shows that the monthly runoff,sediment discharge,and sediment concentration of Makou Station and Sanshui Station are obviously of the “unimodal type”,with runoff and sediment concentrated in June and July during the flood season.The annual concentration ratio of runoff and sediment in the West River and North River delta is high with a decreasing trend,while the concentration period is concentrated in early July with a slight delay.The interannual variation trend of runoff and sediment in the West River and North River delta is mainly controlled by the variation of flood season and is affected to some extent by the regulation of the non-flood period.There is a consistent interannual trend of runoff with precipitation,but the annual concentration ratio is more affected by hydraulic engineering.Sand excavation in river channels affects the distribution of runoff and sediment by changing the diversion ratio of runoff and sediment.…”
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1144
Displacement and Force Control of a Quarter Car Using a Mixed Mode MR Mount
Published 2013-01-01“…In hydraulic hybrid vehicles (HHV), vibration in dual-mode pump/motor units should be isolated from the chassis. …”
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1145
Effects of Flow Rate and Viscosity on Slip Factor of Centrifugal Pump Handling Viscous Oils
Published 2013-01-01“…Slip factor is an important parameter in the hydraulic design of centrifugal pump impeller for handling viscous oils. …”
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1146
Eaux, risques majeurs et patrimoine culturel : des directives européennes aux stratégies territoriales, état des lieux de la mise en œuvre en France
Published 2014-12-01“…It has resulted in the reevaluation, reconstruction, or destruction of heritage linked to water management in all its forms (river management, hydraulic engineering ...) and in the management of risks caused by water (dikes, embankments, coastal maintenance works, drainage ditches ... ). …”
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1147
Fatigue properties and fracture mechanism of load carrying type fillet joints with one-sided welding
Published 2015-12-01“…The structures of the hydraulic excavator and the crane have numerous one-sided welded joints. …”
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1148
The Similarity Hypothesis and New Analytical Support on the Estimation of Horizontal Infiltration into Sand
Published 2010-01-01“…A method based on a specific power-law relationship between the hydraulic head and the Boltzmann variable, presented using a similarity hypothesis, was recently generalized to a range of powers to satisfy the Bruce and Klute equation exactly. …”
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1149
Ludwig: A Training Simulator of the Safety Operation of a CANDU Reactor
Published 2011-01-01“…A comprehensive set of online graphical displays are provided giving an in-depth understanding of transient neutronic and thermal hydraulic response of the power plant. The model was validated against data from a real transient occurring in the Argentine NPP Embalse Río Tercero, showing good agreement. …”
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1150
Les illustrations en pleine page du cartulaire du XIIe siècle (ms 210 d’Avranches), problèmes d’interprétation et sources textuelles
Published 2021-07-01“…In the case of the illustration on folio 4v, the investigation carried out through a series of historical and literary texts leads to the conclusion that the palace of Saint Aubert is probably inspired by the description of a hydraulic clock in the image of the celestial city. …”
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1151
PARAMETERS INFLUENCE OF INDUCTION GROOVES ON ENERGY ABSORPTION CHARACTERISTICS OF CRASH-BOX FILLED WITH FOAMED ALUMINUM
Published 2019-01-01“…The finite element simulation of the impact process was feasible when the crash-box body was made the impact test by the vertical and horizontal hydraulic impact test platform.…”
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1152
Optimizing Design of the Structure of Interior Lubrication Shift Gear Pump in Automatic Transmission
Published 2017-01-01“…The gear pump is an important component of the hydrodynamic automatic transmission,which provides oil for the automatic shift system and lubrication and cooling system. Based on hydraulic automatic transmission design,according to the structural characteristics of the radial outer engaging in parallel multi-tooth gear pump,an internal study for trapped oil phenomena encountered in the process of their work,the causes and solutions are analyzed. …”
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1153
Une double conduite en bois découverte avenue du Point-du-Jour à Lyon
Published 2023-12-01“…An excavation conducted at 73-75-77 avenue du Point-du-Jour in Lyon (Rhône) in January 2020 brought to light a hydraulic system consisting of a double wooden pipe.The two parallel pipes lie in a ditch measuring 4 m in width and 2.80 m in depth. …”
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1154
Study on Reduction of Water Fins in the Middle Pier of the Spillway of Miaotang Reservoir
Published 2022-01-01“…The water fin phenomenon is a common hydraulic phenomenon behind the piers in the gate chambers of discharge structures such as spillways and spillway tunnels.Considering the serious water fin phenomenon at the tail of the middle pier of the spillway of Miaotang Reservoir,a model test with a scale of 1:30 is used to compare and study the three types of middle piers.The results reveal that the water flow of two holes meets and collides behind the elliptical middle pier of Type 1 to form a large-scale water fin.The middle pier of Type 2 has a limited effect in reducing the water fins at the tail of the pier in the spillway,and strong collision still occurs behind the pier.The front and rear ends of the tail middle pier of Type 3 are connected by streamlined curves to ensure that the water flows smoothly along the streamlined surface of the tail pier,and thus sudden changes in flow speed can be avoided to effectively reduce the scale of the water fin.In this way,the discharge flow is smooth,and the discharge flow pattern is significantly improved.The research results can provide a reference for similar engineering.…”
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1155
Multilayered Pipe Cutting Test for Remote Handling Maintenance
Published 2015-01-01“…In this study, the results were obtained from different cutting directions and supporting intensities of pipe baseplates comparisons: When enough power was provided and the blade gripper did not slip, the cutting direction had little impact on the cutting capacity but more on the fault surface; the clearance between the blades caused the rotating torque; for remote handling maintenance, good horizontal support of the long-handled lever of the hydraulic cutter was required. Significant conclusions were made for multilayered pipe cutting that are crucial for auxiliary tools development for remote handling maintenance.…”
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1156
Cokriging of transmissivity from head measurements revisited in the case of two quasi steady state flows
Published 2023-12-01“…The theoretical relationships between simple and cross-covariances of the transmissivity and the hydraulic head, deduced from the linearisation of the flow equation are used for cokriging transmissivity field with data from one then two quasi steady-state flows. …”
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1157
Optimal Treatment Methods for Anti-Tartar Management in Circulating Water Systems
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1158
Research and Evaluation for Passive Safety System in Low Pressure Reactor
Published 2015-01-01“…In addition the best-estimate thermal hydraulic code, CATHARE V2.1, has been assessed against cold leg LOCA test. …”
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1159
Ion Diffusion Behavior between Fracturing Water and Shale and Its Potential Influence on Production
Published 2017-01-01“…Water imbibition, conductivity measurements, and ion identification were performed to investigate ion diffusion behavior between slick water and shale for large-scale hydraulic fracturing. The results indicated that there was strong ion exchange between water and shale. …”
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1160
Les scieries hydrauliques vosgiennes
Published 2016-07-01“…As part of its thematic investigation of the Vosges mountain’s small hydraulic industrial sites, the General Inventory service of the Lorraine region undertook a study of water-powered saw-mills. …”
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