Rural consumers may face not only the challenge of affordability but also problem limited accessibility. Can a government’s subsidy program effectively address these issues? This paper examines impact large-scale program, “Household electrical appliances going to countryside,” offered by Chinese government. The government regulation imposes price combined with ceiling on products in program. We consider two effects subsidy: retail is lowered make product more affordable consumers, and...

Purpose There is a dearth of literature aimed at understanding the Chinese entrepreneur. are even fewer studies that compare and American entrepreneurs. As interdependence economic superpowers continues to grow, it becomes increasingly important understand similarities differences between two groups. Furthermore, researching groups can result in greater The purpose this paper look how economics, culture policy influence formation established successful Design/methodology/approach In study...

As an important part of the digital reactor, pin-by-pin wise fine coupling calculation is a research hotspot in field nuclear engineering recent years. It provides more precise and realistic simulation results for reactor design, operation safety evaluation. CORCA-K nodal code redeveloped as robust neutronics thermal-hydraulic coupled pressurized water (PWR) core. The green's function method (NGFM) used to solve three-dimensional space-time neutron dynamics equation, single-phase single...

We propose a novel method for efficient production of microbubbles based on tapered capillary with an interiorly attached filament. When gas–liquid displacement driven by input pressure occurs in the capillary, gas cone ruptures close to orifice capillary. The generated can be pushed out and collected liquid tank when is appropriately selected. A column employed straight part which sustain film near hence bubble generation transporting along Within working range, increasing air leads...

In PWR three-dimensional transient coupling calculation software CORCA-K, the nodal Green's function method and diagonal implicit Runge Kutta are used to solve spatiotemporal neutron dynamic diffusion equation, single-phase closed channel model one-dimensional cylindrical heat conduction calculate coolant temperature fuel temperature. The LMW, NEACRP MOX/UO2 benchmarks FangJiaShan (FJS) nuclear power plant (NPP) control rod move cases verify CORCA-K. effects of burnup, effective ejection...

Abstract Due to the strong feedback effect between neutronics and thermal-hydraulics in core of pressurized water reactors (PWR), coupling calculations are often used design safety evaluation PWR provide more accurate results. The calculation at full pin-by-pin wise can precise parameters, which is a hot research topic industry. How advance efficiency accuracy entire pin by challenge this research. Multiple digital reactor plans have been proposed worldwide, one important task attempt use...

Abstract Fixed-point iteration is the most widely used iterative format in numerical calculations. The Seidel method a traditional acceleration method, which generally source process of core neutronics During fixed-point process, Anderson using least squares to find direction that converges fastest, based on previous values. can replace directly. So, it be easily implemented existing software iteration. In this paper, with depth n derived, where represents value iterations. formats depths 1...

X wave has a large depth of field and may have important application in ultrasonic imaging to provide high frame rate (HFR). However, the HFR system suffers from lower spatial resolution. In this paper, study nonlinear with is presented improve A theoretical description realizable reported. The simulated by solving KZK equation time-domain difference method. results show that second harmonic narrower mainlobe sidelobes than fundamental field. order evaluate effect wave, an model involving...

The lower head molten pool model is an important for the In Vessel Retention (IVR) effectiveness evaluation. It has characteristics of complex relationship, many input parameters and large uncertainty. traditional local sensitivity analysis method disadvantages amount calculation low efficiency when performing models. Based on variance decomposition global method, library(SALib) IVR code(CISER) developed by Nuclear Power Institute China(NPIC) are adopt to analyze four key parameters, such as...

Abstract The lower head molten pool model is an important for the in-vessel retention (IVR) effectiveness evaluation. It has characteristics of complex relationship, many input parameters, and large uncertainty. traditional local sensitivity analysis method disadvantages amount calculation low efficiency when performing models. Based on variance decomposition global method, library (SALib) IVR code developed by Nuclear Power Institute China (NPIC) are adopted to analyze parameters four key...

Abstract Strong feedback phenomenon between the reactor physical and thermal-hydraulic has an important impact on design safety analysis of pressured water (PWR). In order to accurately simulate strong coupling effect hydraulic in PWR, a multiphysical calculation code is developed, which three-dimensional (3D) space–time neutron dynamic equation solved by nodal expansion method (NEM) green's function (NGFM); coolant temperature fuel are single channel model cylinder heat conduction model,...

The molten pool model of the lower head is an important to evaluate effectiveness In Vessel Retention (IVR), which has been widely used in safety evaluation typical pressurized water reactor (PWR). distribution and transfer process composition heat melt traditional two-layer three-layer proposed recent years are simulated, with characteristics complex relationship strong nonlinearity. order provide a support for optimization delamination mitigation strategy serious accidents, both global...