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Purpose – This paper aims to describe computer-aided design and rapid prototyping (RP) systems for the preoperative planning and fabrication of custom-made implant. Design/methodology/approach – A patient with mandible defect underwent reconstruction using custom-made implant. 3D models of the patient's skull are generated based on computed tomography image(More)
It is well known that the patients of depression have lower performance in perception, planning, and execution in cognition relative to healthy controls. It remains controversial, however, whether any differences in basic cognitive functions between depression and healthy subjects. Furthermore, few studies have directly used functional magnetic resonance(More)
BACKGROUND Endoscopic approaches are gradually considered as a reliable treatment of intramucosal esophageal squamous carcinoma. However, endoscopic resection (ER) is limited by the potential lymph node metastasis (LNM) at various depths of mucosal and submucosal invasion. METHODS We conducted a retrospective review of 498 patients with pT1 superficial(More)
Round-trip time (RTT) is defined as the round-trip delay of a data packet between a source and a destination node and is a very important metric for measuring the performance of network applications. The measurement and estimation of RTTs has received a great deal of attention in network measurement research over the years. An interesting question is how(More)
Emergence as the characteristics of complex system is ubiquitous, and it has practical significance to make expected function emerged through the emergence control. Based on the discussion of generating mechanism on emergence, the general definition and research category of emergence control are presented, and the basic approach to emergence control is(More)
NC machining time of a part depends on its geometry and process plan, NC program, and machine characteristics. Since the integration of geometry and process plan, NC program, and machine characteristics is difficult during NC machining time forecasting, existing commercial software tools and research systems do not fully consider these factors, and(More)