closely matches the one she is used to namely pencil and paper. The ability to specify nonplanar 3D curves is of fundamental importance in 3D modeling and animation systems. Effective techniques for specifying such curves using 2D input devices are desirable, but existing methods typically require the user to edit the curve from several viewpoints. We present a novel method for specifying 3D cu...

BACKGROUND Controversy still exists around surgical strategies for Lenke type 1C and 2C curves with primary thoracic and compensatory lumbar curves in adolescent idiopathic scoliosis (AIS). The benefit of selective thoracic fusion (STF) for these curve types is spontaneous lumbar curve correction while saving more mobile lumbar segments. However, a risk of postoperative coronal decompensation a...

Abstract Microtremor is recorded with a device that very sensitive to subsurface soil vibrations, unwanted noise frequency waves are often also included. For this reason, processing needs be done using filters can attenuate the noise. In previous research, signal decomposition was performed Interpolated Finite Impulse Response (IFIR) filter and resulted attenuation at desired value. Using MATLA...

The strength of the spinal trabecular bone declines by a factor of 4-5 from the age of 20 to 80 years. At the same time, the volumetric (apparent) density declines by a factor of only 2. This discrepancy can be explained by the known power relationship between density and strength; this power relationship is based on the fact that trabecular bone is a porous material. To date, it has not been p...

Purpose This study presents test-retest reliability of optotype visual acuity (OVA) across 60° of horizontal gaze position in patients with infantile nystagmus syndrome (INS). Also, the validity of the metric gaze-dependent functional vision space (GDFVS) is shown in patients with INS. Methods In experiment 1, OVA was measured twice in seven horizontal gaze positions from 30° left to right in...

A horizontal curve’s geometric design is considered an important factor in highway accidents, and simple spiral curves are regarded as the most common types of curves. Various factors affect safety curves, one which side friction Therefore, this study, was investigated for E-class sedan, SUV, two-axle conventional truck based on factor. In regard, CarSim TruckSim vehicle dynamic simulation soft...

In order to study the creep characteristics of frozen soil under different confining pressures, triaxial tests temperatures are carried out and deformation law pressures freezing is analyzed. this paper, unsteady Abel dashpot constructed by viscosity coefficient. On basis, fractional unsteady. Then, a time-dependent constitutive model for based on established. The can better describe accelerate...