Loading [MathJax]/extensions/MathMenu.js
IEEE Xplore Search Results

Showing 1-25 of 41,601 resultsfor

Filter Results

Show

Results

We examined the relationship between media cluster size distribution and signal quality to obtain a guideline for developing high-density recording media. Both spin-stand measurement and micromagnetics simulation were used. The cluster size distribution and signal-to-noise ratio (SNR) of various recording media were evaluated, and the relationship between the two was analyzed by multiple regressio...Show More
Accurate measurement of the particle size distribution of pneumatically conveyed pulverized fuel is critical to achieving optimal combustion efficiency and minimum pollutant emissions at coal and biomass-fired power plants. This paper presents a prototype instrumentation system for the on-line continuous measurement of particle size distribution through acoustic emission (AE) detection. The propos...Show More
By analyzing the magnetic cluster size of various media, we have investigated the variation of inter-granular exchange coupling with grain size. With the reduction of the grain size below 8.0 nm, higher inter-granular exchange coupled media showed a large increase in magnetic cluster size, while lower exchange media did not show as dramatic a cluster size change. This cluster size “knee” position ...Show More
The present study examines the relationship between debt level and profitability of SMEs, taking into consideration major characteristics of the enterprises such as size and age. A total of 184 Malaysian Small and Medium-Sized Enterprises (SMEs) registered under Companies Commission of Malaysia (CCM) were examined. The study employed regression method to estimate the impact of debt level on profit...Show More
Current-induced fast-ordering method (CIFOM) was designed to achieve an ordered L10 -FePt film with small grain size under low energy consumption by applying direct current (DC) in the FePt film. The grain size (~ 8 nm) of the L10-FePt film prepared by CIFOM method is about one-third of that produced by the post-annealing method (PAM). The fast ordering of the L10-FePt film by CIFOM is probably at...Show More
A two-step sintering technique was attempted to acquire BaTO3 ceramics with dense and small-grained microstructure through conventional solid-state reaction route, in which BaCO3 and TiO2 powders are adopted as the starting raw materials. It has been found that the two-step sintering technique is effective even for the synthesized BaTiO3 powder of submicron-sized particles. A BaTiO3 ceramic with r...Show More
In cluster-based energy-harvesting wireless sensor networks (EH-WSNs), clustering schemes have been studied for prolonging the network lifetime. The EHGAF has been proposed to achieve this objective, however, this conventional scheme results in non-uniform residual power between cluster heads (CHs), leading to short network lifetime, under the conditions with geographical non-uniform energy-harves...Show More
We report a general approach to the control of grain shape and size in FePt–TiO2 nanocomposite thin films with high anisotropy energy and (001) orientation. By introducing an artificial nucleation layer of different materials (crystalline or amorphous) with different surface free energies (surface effect) and different thicknesses (ultrathin of 0–1 nm) and by separating the film growth process fro...Show More
Ferroelectric Zr-doped HfO2 (HZO) is a promising candidate component for the future transistors and memory devices applications. To address the deviceto-device variation in those highly scaled devices, the grain properties of 12-nm-thick HZO films are investigated and optimized by altering the atomic layer deposition (ALD) cycle ratio of HfO2 and ZrO2 at a constant Zr concentration. The largest re...Show More
The credit assessment of high-tech small and medium sized enterprises is important and crucial to develop investment needs and improve financing channels.Based on the characteristics of high-tech small and medium-sized enterprises and their credit risk, build a credit risk model using Kalman filter. The results show that the Kalman filter model has a very credible prediction and generalization abi...Show More
The effect of stacking faults (SFs) on the uniaxial magnetocrystalline anisotropy (Ku) of perpendicular magnetic recording media is an important factor when the media grain size becomes smaller. In this study, the relationship between grain size, SFs, and the magnetic properties of the media has been evaluated. It was found that when the SiO2 content in the Co-alloy granular thin film increases, t...Show More
This paper presents an alternative approach to reduce the grain size in recording media probably without affecting the anisotropy constant so much. It can be seen that the medium deposited on the new underlayers shows a smaller average grain size (6 nm) as well as a narrow grain size distribution (25%) as compared to 8 nm and 35% that is observed for the medium on conventional underlayer. The grai...Show More
A particle size inversion method based on whale optimization algorithm (WOA) is presented. In the experiment, the small angle forward scattering measurement system is used to conduct experimental research on the inversion of bubble particle size. WOA is used to invert and simulate the bubbles that follow a certain distribution, adding different levels of random noise to verify the stability of the...Show More
The simultaneous effects of the hot band grain size and cold reduction on the final grain structure, texture and magnetic properties of 3% Si steel were studied by variation of finishing temperature and hot band thickness during hot rolling, followed by cold rolling to final thickness and annealing in H2/N2 atmosphere. The results have shown that there is an optimum combination of hot band thickne...Show More
Grain size and its spatial distribution are the crucial issues in the study of advanced materials with a grain-grain boundary structure. It not only implies the grain growth mechanism of those materials, but also determines most of their macroscopic properties, such as mechanical strength, current conduction, ageing and so on. Therefore, it is of importance to clarify the grain size distribution (...Show More
In this study, we focus on analysis of snow grain size behavior with respect to other snow parameters such as snow depth, density, and temperature. We derive a pattern which can be used to approximate the range of grain size variations. NASA Cold-Land Process Experiment data includes measurements of the grain size, density, and temperature in different layers of snowpack profile. The analysis show...Show More
Base metal electrodes (BME)-multilayer ceramic capacitors (MLCCs) with high volume capacitance are considered to be a fascinating device for a diverse range of electrical applications. Here, the influence of raw materials on the microstructure, tetragonality, dielectric properties and reliability are systematically analyzed FESEM, micro-XRD, temperature coefficient of capacitance (TCC) curves, Wei...Show More
In the process of vigorously advocating financing services for small and medium-sized enterprises, small and medium-sized financial institutions have ushered in new opportunities for development. Small and medium-sized enterprises financing difficulties, financing channels single, small and medium-sized financial institutions put forward requirements. The emergence of small and medium-sized financ...Show More
The problem of small solid particle size and material detection is important for industrial and environmental applications. Previous investigations have shown the possibility of using the laser breakdown method to address the first issue; the sensitivity of this method is a thousand times higher than that of conventional methods. However, for small particle sizes, the damage threshold of the solid...Show More
Very thin (less than 100 mu m) grain-oriented silicon steels are known to have lower iron loss than iron-based amorphous materials. It is possible to reduce the iron loss of very thin grain-oriented silicon steels further by applying new magnetic domain refining techniques. One method for magnetic domain refining is to control the grain size. The authors observed the magnetic domains and measured ...Show More
Small and medium-sized enterprises (SMEs) being important strength of national economy in China, have being confronted with a financing developing difficulties, some of the problems own common characteristics in the world. But there are personal characteristics in China in transition economies. Taking Chinese central section Hubei province as example, the study of this theme shows that Chinese cha...Show More
The accuracy of data-driven models requires large number of training samples. However, training samples in many applications are usually difficult to collect. Thus, learning from small training sets is still an unprecedented challenge. In this paper, we proposed an effective virtual sample generation approach integrating local outlier factor with radial basis function interpolation for solving sma...Show More
In object detection tasks, the detection of small size objects is very difficult since these small targets are always tightly grouped and interfered by background information. In order to solve this problem, we propose a novel network architecture based on YOLOv3 and a new feature fusion mechanism. We added multi-scale convolution kernels and differential receptive fields into YOLOv3 to extract th...Show More
The data size and data feature under the current mainstream compilation schemes can be diversified, formal methods are thus mandatory. However, in a micro base station, as an embedded system, the typical feature or opportunity of baseband algorithms is its predictable small code and data sizes. The research is thus needed and there is so far no dedicated research on the related register allocation...Show More
Snow changes its morphology permanently from the moment a snow flake touches the ground. Under the influence of meteorological factors such as temperature, humidity, and wind, snow grains form complex structures of ice bonds enclosing variable portions of air. The characteristics of such structures are important for the formation of snow avalanches. Certain snow types such as surface hoar, ice cru...Show More