Most papers are machine-translated to English; some are originally in English.
Showing 31 of 181 papers
Grouting is a common technical measure to improve the mechanical properties of broken rock mass and ensure the stability of underground excavation. The strength characteristics of reinforced broken rock mass are important parameters in geotechnical engineering design. However, due to the complex str…
To address the limitations of traditional linear non-stationary random field models in handling the nonlinear variation of soil parameters in fill slopes, this paper proposes a non-stationary random field model employing piecewise linear functions as trend functions. The coefficient calculation meth…
Frame prestressed anchor bolt systems are widely employed in slope engineering, wherein the stability of multi-stage slopes represents a core element of construction safety. Research on the sensitivity of influencing factors and the correlation between stability and displacement for multi-stage slop…
In the Eastern Himalayan Syntaxis region, watershed-scale geological hazards occur frequently, causing significant casualties and infrastructure damage. This study establishes a systematic research methodology from regional scale to individual hazard sites, encompassing the construction of a geologi…
This paper comprehensively surveys the evolutionary trajectory, technical principles, market applications, development trends, and challenges confronting reconfigurable chip technology. With the rapid advancement of information technology, emerging technologies have imposed increasingly stringent de…
This article investigates the effect of higher-order kinematic modeling on the elasto-static bending behavior of doubly-curved shells. Graphene origami is introduced as a novel nanofiller, synthesized through a chemical process to achieve a controllable material. A copper matrix serves as the primar…
Powder-bed metal additive manufacturing frequently suffers from high porosity issues arising from gas entrapment and keyhole instability. This study presents, for the first time, a breakthrough methodology: in-situ molten pool modulation via low-pulse-energy coaxial laser shock. By coupling an addit…
High-end electricity meter export represents the expected direction for the development of the electricity meter industry in the coming years. This paper will discuss three thematic topics: the innovative achievements of China's high-end electric energy metering technology in recent years; deepening…
This passage primarily introduces the electricity information collection system construction to be completed by State Grid between 2010 and 2014, with particular focus on the application and challenges of local narrowband carrier communication methods. The article also mentions collaborative researc…
The Veto detector of the external target facility (ETF) at the Heavy Ion Research Facility in Lanzhou - Cooling Storage Ring (HIRFL-CSR) was calibrated using cosmic rays. The calibration work was primarily divided into two components: position calibration and time calibration. Position calibration y…
Smart electricity meters are not merely devices for measuring electricity consumption; they have become core components of the smart grid, enabling efficient monitoring, forecasting, and management of electricity usage. After gaining an in-depth understanding of the evolutionary process of smart ele…
This passage primarily describes the transformation of State Grid's investment strategy regarding smart meters and distribution networks, along with its implications for the metering industry. State Grid has shifted its investment priority from smart meters to new-generation smart substation demonst…
During the "13th Five-Year Plan" period, the State Grid smart meter market will undergo significant transformation, wherein demand for smart meters will decline substantially while demand for supporting equipment such as pluggable meter boxes will increase. Confronted with this market shift, traditi…
A preliminary exploration of grid measurement equipment, intelligent control systems, and the development direction of smart meters in China. The article first reviews the origin and development of smart grids, including their definition, concepts, and construction approaches. It then explores the t…
The "Four-meter Centralized Collection" initiative rapidly gained momentum in August 2015 following a notice from the Marketing Department of State Grid. This notice promoted the unified collection of electricity, water, gas, and heat meter data, triggering widespread attention both within and outsi…
This paper introduces the initial objectives of the GE smart meter joint venture jointly launched by State Grid Corporation, General Electric (GE), Luneng Group, and China Electric Power Research Institute, encompassing the joint venture parties, strategy, objectives, and project progress. Additiona…
Intelligent terminals, building upon measurement technology, have already expanded into research on intelligent control and compensation technologies. The development and application of this technology hold significant importance for improving the efficiency and stability of power systems. First, me…
With the development of renewable energy, the voltage support strength of multi-infeed renewable energy systems is gradually decreasing, necessitating effective strength assessment methods. If all equipment is assumed to operate at rated operating points, existing power grid strength indicators and …
As China's first ecological civilization pilot zone, Fujian Province maintains excellent ecological environmental quality, with various ecological environment-related indices consistently ranking among the top nationwide. To investigate the causes of Fujian's ecological excellence over the past fift…
A novel hybrid laser additive manufacturing process based on laser shock modulation of molten pool was proposed in this work. The flow behavior residual stress, and microstructure of the molten pool were comprehensively characterized by a combination of experiments and simulations. The relationship …
With growing interest in Laser Additive Manufacturing (LAM) of High-entropy alloys (HEAs) during most recent years, the design of compositional elements and process strategies are primary methods to overcome undesirable microstructures and defects. Here we propose a new approach, a novel real-time L…
The dynamic characteristics of new energy power systems are complex, featuring numerous stability analysis methods and stability criteria. Different stability methods/criteria correspond to different physical interpretations and applicable scopes, making it currently difficult to theoretically addre…
The first part of this paper proposes qualitative principles and quantitative evaluation metrics for assessing the adaptability of stability analysis methods/criteria from three perspectives: stability equivalence, nominality, and robustness. The second part further examines typical equipment includ…
In the field of electronic packaging, lead-free solders are primarily binary or ternary Sn-based eutectic or near-eutectic alloys, with the Sn-rich phase constituting the matrix phase. To characterize the mechanical properties and stress-strain relationship of the Sn-rich phase, nanoindentation test…
A dilation X-ray detector (DIXD) based on time dilation and microchannel plate (MCP) gated technology has been reported. The DIXD passes a driving pulse along the transmission photocathode (PC) to obtain a dilated electron signal and finally achieves a high time resolution of 12 ps. Furthermore, the…
This study investigates the application technology of near-ultraviolet femtosecond laser pulse inscription inside polymethylpentene. We discovered that this thermoplastic material exhibits polarization-sensitive characteristics. First, inscription experiments employed a lens with a numerical apertur…
Thin-film semiconductor devices as switching elements represent an ideal match for electrode-array-based digital microfluidics. With the support of large-area electronics technology, high-resolution digital droplets (diameter around 100 μm) containing single cells can be generated by pre-programmabl…
Exergy is an indicator for measuring energy quality, which profoundly reveals the essence of work capability loss during energy transfer processes. To investigate the dynamic evolution mechanism of ? in time-varying energy networks, this paper formulates the constitutive relations among physical qua…
In recent years, digital twins have attracted extensive attention and are becoming increasingly complex. Current digital twin implementations are predominantly confined to specific scenarios, and there remains a lack of methods for constructing complex digital twins in the face of multi-level and mu…
‘The spectral leakage (SL) from windowing and the picket fence effect (PEF) from discretization’ have been among the standard contents in textbooks for many decades. The SL and PEF would cause the distortions in amplitude, frequency, and phase of signals, which have always been of concern, and attem…
The advantages of once-through molten salt reactors include readily available fuel, low nuclear proliferation risk, and low technical difficulty, making them potentially one of the most easily commercialized fuel cycle modes for molten salt reactors. However, there exist certain issues in parameter …
