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Although growth factor (GF)‐loaded hydrogels have been explored as promising materials in repairing bone defects, it still remains challenging to construct smart hydrogels with excellent gelation/mechanical properties as well as controllable GF releasing capability. Herein, the incorporation of bone morphogenetic protein 2 (BMP‐2)‐functionalized MgFe‐layered double hydroxide (LDH) nanosheets into...
A large quantity of disorders that occur in the gastrointestinal tract have always been challenging to be diagnosed in a complex environment inside the human body, but with the invention and development of wireless capsule endoscope. Many patients that experienced traditional treatment will perceive stupendous convenience. Such wireless capsule endoscope requires a highly accurate localization system...
The propagation characteristics of ultra-wideband (UWB) signal have been a popular topic in wireless communications with the advantages of large bandwidth and high communication rate. This paper studies on the multipath propagation characteristics of UWB signal for indoor laboratory environment by time domain ray tracing method. Also, reflection, diffraction, transmission and direct rays are all considered...
In this paper, the propagation characteristics of 38GHz millimeter wave in an indoor environment are simulated based on ray tracing method. The path loss and delay spread are discussed and analyzed on both line of sight and non line of sight. The conclusions drawn in this thesis may be utilized for the design of millimeter-wave mobile communications for the future fifth generation cellular system.
In this paper, the propagation characteristics of UWB (Ultra-wideband) signal in the indoor radio channels are discussed based on the method of SBR/IM (Shooting and bouncing ray tracing/image). Propagation characteristics are analyzed by considering of multipath propagation mechanisms including direct ray, reflection and transmission. A good agreement is achieved between the measured results and simulated...
In this paper, the propagation characteristics of UWB (Ultra-wideband) signal in the indoor NLOS (Non-Line-of-Sight) environment are discussed based on the time-domain ray tracing method. Propagation characteristics are analyzed by considering of multipath propagation mechanisms including direct ray, reflection and transmission, such as the time-domain normalized electric field intensity, instantaneous...
The 60GHz band millimeter-wave propagation characteristics are simulated and analyzed using the method of ray tracing method in the indoor complex environment. The propagation characteristics in the line-of-sight(LOS) and non-line-of-sight(NLOS) environment are discussed. The effect of the polarization and the roughness on the root-mean-square(RMS) delay spread are analyzed. Results of the study can...
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