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Article
Study on the optimal incident proton energy of 7Li(p, n)7Be neutron source for boron neutron capture therapy
Boron neutron capture therapy (BNCT) is recognized as a precise binary targeted radiotherapy technique that effectively eliminates tumors through the 10B(n,α)7Li nuclear reaction. Among various neutron sources, a...
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Article
Thermal error modeling of electric spindles based on cuckoo algorithm optimized Elman network
In order to improve the accuracy of the thermal error model of the electric spindle, a thermal error modeling method based on the optimized Elman neural network using the cuckoo algorithm is proposed. To analy...
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Article
Numerical model establishment and experimental study of milling head cooling water flow rate
The thermal error suppression rate depends on the cooling effect of the water cooling system, and the cooling water flow rate is a direct factor affecting the cooling effect. To better reduce the thermal error...
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Article
Study on parameters of T-type cooling system for motorized spindle based on thermal characteristics
Thermal errors, due to temperature rise, account for about two-thirds of the machining error of the motorized spindle. Cooling is an important means of improving the temperature properties of motorized spindle...
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Article
Open AccessResearch on Reconfiguration Strategies for Self-reconfiguring Modular Robots: A Review
With the progress of science and technology, the traditional robot workplace is fixed, single-function, and inflexible, and may not work properly in some special places, while the modular robot with self-recon...
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Article
Review of key technologies of climbing robots
In recent years, the robot industry has developed rapidly, and researchers and enterprises have begun to pay more attention to this industry. People are barely familiar with climbing robots, a kind of special ...
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Article
Thermal error modeling of motorized spindle considering the effect of milling head heat source
The thermal behavior of the machine tool is an important cause of machining errors, and the thermal error prediction model can predict the errors in real time and improve the machining accuracy of the motorize...
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Article
Research on surface image acquisition system of train bearing cylindrical roller
The acquisition of high-quality surface images is an important step in the surface damage detection of bearing rollers. In order to improve the quality of image acquisition and take into account the acquisitio...
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Article
Thermal error prediction model of a motorized spindle considering variable preload
To predict the thermal error of the motorized spindle during machining and improve the accuracy of the error compensation system of the motorized spindle, a method for predicting the thermal error of the motor...
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Article
Modeling of two-scale array microstructure and prediction of apparent contact angle based on WEDM
The core issue in the theoretical design of superhydrophobic surfaces is to elucidate the relationship between surface microstructure and wettability. In this paper, four two-scale array microstructure models ...
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Article
Thermal error modeling of motorized spindle based on Elman neural network optimized by sparrow search algorithm
The thermal error of the motorized spindle is an essential factor affecting the machining accuracy of high-speed numerically controlled machines. The establishment of a high-speed motorized spindle thermal err...
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Article
Temperature measurement point optimization and experimental research for bi-rotary milling head of five-axis CNC machine tool
Thermal deformation is the main factor affecting the machining accuracy of the bi-rotary milling head. To accurately determine the temperature-sensitive points of the bi-rotary milling head to suppress thermal...
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Article
Burnup optimization of once-through molten salt reactors using enriched uranium and thorium
The advantages of once-through molten salt reactors include readily available fuel, low nuclear proliferation risk, and low technical difficulty. It is potentially the most easily commercialized fuel cycle mod...
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Article
Evolution of self-organized nanograting from the pre-induced nanocrack-assisted plasma–laser coupling in sapphire
The period ( \(\wedge \) ∧ ) of nanograting in sapphire varied from 320 to 39...
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Article
Temporally chirped femtosecond pulse laser non-reciprocal writing on the silicon
In this paper, a non-reciprocal writing effect is proposed on the silicon by a femtosecond laser with tailor of temporal chirp. The induced structures which belong to the written lines with two opposite scans ...
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Article
Neutronics analysis for MSR cell with different fuel salt channel geometries
The neutronic properties of molten salt reactors (MSRs) differ from those of traditional solid fuel reactors owing to their nuclear fuel particularity. Based on the Monte-Carlo N particle transport code, the e...
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Article
Ripple period adjustment on SiC surface based on electron dynamics control and its polarization anisotropy
In this paper, the Mach Zehnder interferometer is utilized to generate a collinear dual optical path with 800-nm center wavelength, 1 kHz repetition rate, 120-fs pulse duration and an energy ratio of 1:1 to sc...
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Article
LIPSS-covered annular ablation region induced on ZnO surface by focusing femtosecond laser beam spatially shaped by bubbles in cedar oil
In this paper, without circular scanning of laser focus, annular ablation region was reported to be induced by femtosecond laser static irradiation of ZnO surface immersed in oil, and these annular ablation re...
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Article
Research on the effect of the heavy nuclei amount on the temperature reactivity coefficient in a small modular molten salt reactor
Small modular thorium-based graphite-moderated molten salt reactors (smTMSRs), which combine the advantages of small modular reactors and molten salt reactors, are regarded as a wise development path to speed ...
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Article
Application of global variance reduction method to calculate a high-resolution fast neutron flux distribution for TMSR-SF1
The solid fuel thorium molten salt reactor (TMSR-SF1) is a 10-MWth fluoride-cooled pebble bed reactor. As a new reactor concept, one of the major limiting factors to reactor lifetime is radiation-induced mater...
