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121
Adapter et commenter le Livre des Rois (Shâhnâmeh) en Allemagne au XIXe siècle
Published 2017-07-01“…Ferdowsi’s work was the subject of presentations in the Orientalist journals that appeared after 1800, including Treasure Trove of the Orient (Fundgruben des Orients) launched in 1808 by Josef von Hammer-Purgstall (1774-1856), who, like William Jones (1746-1794), was a pioneer of European orientalism. …”
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122
Optimal Design Parameters of a Percussive Drilling System for Efficiency Improvement
Published 2018-01-01“…These results are applicable to the design and performance estimation of down-the-hole and top-hammer systems.…”
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123
Experimental and Numerical Analysis of Flow Behavior for Reverse Circulation Drill Bit with Inserted Swirl Vanes
Published 2022-01-01“…A swirling drill bit designed with an integrated vane swirler was developed to improve reverse circulation in down-the-hole hammer drilling. Its entrainment effect and influential factors were investigated by CFD simulation and experimental tests. …”
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124
A Comparative Study of Regularization Method in Structure Load Identification
Published 2018-01-01“…The results show that using the two identification methods Tikhonov (L-curve) and TSVD (GCV-curve) can successfully and accurately identify the different excitation forces of the external hammer. The TSVD based on GCV method has more advantages than the Tikhonov based on L-curve method. …”
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125
Study on the Failure of the Bolted Flange Connection Structure between Stages of Missiles (Rockets) under Transverse Impact Load
Published 2018-01-01“…Based on the bolted flange connection structure between stages of the missiles, four experimental specimens are simplified and manufactured, and the transverse impact failure experiments of the drop hammer are designed and carried out in this study. …”
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126
An Investigation on Low Velocity Impact Response of Multilayer Sandwich Composite Structures
Published 2013-01-01“…Low velocity impact tests were carried out by drop hammer testing machine to the clamped multilayer sandwich panels with expanded polypropylene (EPP) and polyurethane rigid (PUR) in the top and bottom cores. …”
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127
Fracture failure analysis of baseplates in a fluidic amplifier made of WC-11Co cemented carbide
Published 2013-12-01“…A fluidic amplifier is a crucial automatic control component in a liquid jet hammer used to drill hard formations in the oil industry. …”
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128
Design and Construction of Block and Tackle Pulley System Using Locally Available Resources.
Published 2024“…Therefore, my improvised block and tackle system was constructed using a fixed pulley, a moveable pulley, a rope, a Hole cutter/hole saw, a Baw saw, a Plane, a Tape measure, a Pencil, a Grooving machine, a Jig saw, Hammer.…”
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129
Design and Construction of An Electric Bell.
Published 2024“…When the switch is closed, current flows through the circuit which makes the electro-magnet become magnetized hence attracting the armature thus the hammer hits the gong. This produces a repetitive sound until when the switch is turned off and no current is flowing…”
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130
Optimization and prediction of paver block properties with ceramic waste as fine aggregate using response surface methodology
Published 2024-10-01“…The evaluations involve aspects like compressive strength, water absorption (WA), dry density, flow table measurements, ultrasonic pulse velocity (UPV), and rebound hammer tests. The results indicate that replacing natural aggregates with up to 30% CW significantly improves compressive strength (CS) and Rebound results from tests. …”
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131
Field Tests to Investigate the Penetration Rate of Piles Driven by Vibratory Installation
Published 2017-01-01“…The working parameters of vibratory hammer, such as driving force and vibratory amplitude, have great influences on the penetration rate of the pile, especially at the later stages of the sinking process. …”
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132
Cognitive basis of animal names in the Russian language and its dialects in the common Slavic context
Published 2018-10-01“…Among the most popular motives of the nomination are such signs of animals as their color, other external signs, characteristic actions (the ability to fly, jump, crawl, dig the ground, squirm, run fast, hammer the bark of trees, etc.), feeding modes and preferences (what the animal feeds on), sounds, smell, habitat, etc. …”
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133
Impact Resistance of Concrete Containing LLDPE–Waste Tire Rubber and Silica Fume
Published 2023-02-01“…Six cylinders with 150 and 60 mm were subjected to an impact by a 4.45 kg hammer striking. Test results indicated that impact resistance for the first visible crack and the ultimate failure increased with LLDPE-R content, where it increased by 4.76 times. …”
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134
Fracture failure analysis of baseplates in a fluidic amplifier made of WC-11Co cemented carbide
Published 2014-01-01“…A fluidic amplifier is a crucial automatic control component in a liquid jet hammer used to drill hard formations in the oil industry. …”
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135
Improving the Stability of Mining Slopes in Tarcha Coal Mine, Southwestern Ethiopian Deposit Through Geometric Adjustments
Published 2024-01-01“…Results indicated that the rock quality designation (RQD) of the rocks ranged from 22 to 57.5, indicating rock quality from very poor to fair. Schmidt hammer tests revealed uniaxial compressive strength (UCS) values between 14.79 and 29.31 MPa. …”
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136
Impulse Force Balance for Ultrashort Duration Hypersonic Test Facilities
Published 2015-01-01“…Dynamic calibration of the test assembly was carried out for the acquisition of impulse response functions for the above components of force and moments, using an impulse hammer. The convolution technique was applied to derive the impulse response functions. …”
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137
Macro/Microtesting and Damage and Degradation of Sandstones under Dry-Wet Cycles
Published 2016-01-01“…In terms of the degradation of mechanical parameters of rock mass in the hydrofluctuation belt of a reservoir bank slope arising from rainfall and the reservoir level fluctuation, the moderately weathered sandstone in a side slope of the Three Gorges Reservoir Region is selected as a research object to carry out “drying-saturation-drying” tests for disks with two thicknesses (h=25 mm, h=50 mm) in different cycles; a spiral CT machine, an ultrasonic velocity meter, and a light Schmidt hammer are utilzed to conduct nondestructive testing on dry-wet cycles; through the Brazilian splitting test, the uniaxial tensile strength of “dry” and “saturated” sandstones under different dry-wet cycles is obtained. …”
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138
Experimental Investigation of Wave-Induced Ship Hydroelastic Vibrations by Large-Scale Model Measurement in Coastal Waves
Published 2016-01-01“…The testing procedure is presented by illustrating a 5-hour voyage trial of the large-scale model carried out at Huludao harbor of China in August 2015. Hammer tests were performed to identify the natural frequencies of the ship model at the beginning of the tests. …”
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139
Study on impact energy absorption characteristics of biomimetic multi-cell thin-walled structure
Published 2024-06-01“…The mechanical behavior and energy absorption characteristics under axial impact of drop hammer impact test and finite element numerical simulation were studied. …”
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140
Experimental and Analytical Investigation Based on 1/2 Scale Model for a Cleanroom Unit Module Consisting of Steel Section and Reinforced Concrete
Published 2016-01-01“…The dynamic test using an impact hammer is conducted to obtain the transfer function of 1/2 scale model. …”
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