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Article
Transcriptome analysis provided a new insight into the gene expression profiles of muscle after exercise training of juvenile Schizothorax wangchiachii
The hatchery-raised juveniles of Schizothorax wangchiachii, a species widely distributed in the **sha River and its tributaries in China, have shown improved swimming performance through exercise training. Under...
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Chapter and Conference Paper
Driving-Step** Locomotion Control for Wheel-Legged Robots
In the study of trot gait locomotion in traditional quadruped robots, it has been observed that the robot’s body is prone to flip around the diagonal line of the body. A wheel-legged quadruped robot without sh...
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Article
Monitoring of surface deformation in mining area integrating SBAS InSAR and Logistic Function
SBAS InSAR has long been used to monitor the mining surface deformation, and its research has been of great interest to researchers worldwide. For the unsatisfactory accuracy of SBAS InSAR-monitored mining sur...
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Article
Optimization of the Swept Volume Ratio between the Compressor and the Active Displacer in an Efficient 20 K Thermal-Coupled Two-Stage Pulse Tube Cryocooler
As an important component of the stirling-type pulse tube cryocooler (SPTC), an efficient phase shifter can significantly improve the cooling capacity. Compared to the common phase shifter, the active warm dis...
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Article
Energy distribution between liquid hydrogen and liquid oxygen temperatures in a Stirling/pulse tube refrigerator
A two-stage gas-coupled Stirling/pulse tube refrigerator (SPR), whose first and second stages respectively involve Stirling and pulse tube refrigeration cycles, is a very promising spaceborne refrigerator. The...
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Article
Temperature Fluctuation of a Closed-Cycle Helium Joule-Thomson Cryocooler with Two-Stage Precooling
For quantum communications, single-photon detection, millimeter wave detection and other space projects, all of them need to work at liquid helium temperatures to achieve excellent performance. The closed-cycl...
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Article
Experimental Investigation and Thermoacoustic Analysis of a Single-Stage Pulse Tube Refrigerator with an Active Displacer
The Stirling-type pulse tube refrigerator is a widely used refrigerator that has been extensively applied in space. An optimal phase angle between the pressure wave and volume flow is essential for a pulse tub...
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Article
Phosphate removal from aqueous solutions with a zirconium-loaded magnetic biochar composite: performance, recyclability, and mechanism
Phosphate (P) removal is significant for water pollution control. In this paper, a novel penicillin biochar modified with zirconium (ZMBC) was synthesized and used to adsorb P in water. The results showed that...
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Chapter and Conference Paper
Motion Control Strategy of Wheel-Legged Compound Unmanned Vehicle
This paper proposes a motion control strategy for the wheel-legged compound unmanned vehicle, including attitude control and driving control. Firstly, based on tire mechanics, Lagrangian method and D’Alembert’...
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Chapter and Conference Paper
A High Efficiency Stirling/Pulse Tube Refrigerator Working at 15−20 K
Stirling/pulse tube refrigerator (SPR) is firstly proposed by Raytheon in 1999. The SPR has significant advantages in terms of high efficiency, long lifetime, and high compactness. The SPR features the ability...
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Chapter and Conference Paper
Development of a 2 K Joule-Thomson Cryocooler with 4He
The 2 K mechanical Joule-Thomson (JT) throttling refrigeration system is crucial for the scientific observation and quantum communication of space detectors with extremely high sensitivity and resolution, such...
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Chapter and Conference Paper
Performance Testing of Helium Valved Linear Compressor System Capable of Providing Compression Ratio Over 200
A Joule-Thomson cryocooler (JTC) with temperature around 2 K has great application potential, and the compression ratio is the key factor to limit the performance of the cryocooler. A valved linear compressor ...
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Chapter and Conference Paper
Study of a Two-Stage Pulse Tube Precooling Helium Joule-Thomson Cryocooler
For space application, it is important to study energy efficiency of the helium Joule-Thomson cryocooler (JTC) under different operating parameters. The operating parameters affect not only the cooling capacit...
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Chapter and Conference Paper
A High-Efficiency 80 K Coaxial Pulse Tube Refrigerator with Both Active Phase Shifting and Work Recovery
Pulse tube refrigerator is abundantly used in military and civilian areas owing to the cold head without moving parts. The phase difference between mass flow and pressure wave in the cold finger significantly ...
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Chapter and Conference Paper
A 910 mW@15 K Thermal-Coupled Pulse Tube Cryocooler with Active Phase Shifter
A two-stage Stirling-type pulse tube cryocooler (SPTC) operating in 15 K is developed in our lab for cooling infrared detectors and per-cooling helium JT cryocooler. The SPTC adopts thermal-coupled structure a...
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Chapter and Conference Paper
A Superhigh Performance 40 K Pulse Tube Refrigerator with Miniaturized Active Phase Shifter
Compared to Stirling type refrigerants, Stirling type pulse tube refrigerators have no moving parts at the cold end, making the pulse tube refrigerator have the advantages of long life, high efficiency, and hi...
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Chapter and Conference Paper
Optimal Design and Analysis of Separable Suspension System of Wheel-Legged Compound Unmanned Ground Vehicle
Wheel-legged compound unmanned ground vehicles promise versatile, fast and efficient mobile capabilities. To improve the driving stability of the wheel-legged compound unmanned ground vehicle and ensure the re...
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Article
Open AccessLipid droplets as endogenous intracellular microlenses
Using a single biological element as a photonic component with well-defined features has become a new intriguing paradigm in biophotonics. Here we show that endogenous lipid droplets in the mature adipose cell...
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Article
Open AccessRNAi technology for plant protection and its application in wheat
The RNAi technology takes advantage of the intrinsic RNA interference (RNAi) mechanism that exists in nearly all eukaryotes in which target mRNAs are degraded or functionally suppressed. Significant progress ...
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Article
Open AccessEvaluation of dsRNA delivery methods for targeting macrophage migration inhibitory factor MIF in RNAi-based aphid control
Macrophage migration inhibitory factors (MIFs) are multifunctional proteins regulating major processes in mammals, including activation of innate immune responses. In invertebrates, MIF proteins participate in...
