Measurement of scoliosis Cobb angle by end vertebra tilt angle method [PDF]
Journal of Orthopaedic Surgery and Research, 2018 Background Scoliosis is a common deformity, and its severity is usually assessed by measuring the Cobb angle on the spinal X-ray film. The measurement of the Cobb angle is an important basis for selecting therapeutic methods and evaluating therapeutic ...
Jing Wang +5 more
doaj +5 more sources
Photovoltaic panels tilt angle optimization [PDF]
E3S Web of Conferences, 2021 The tilt angle of solar panels is significant for capturing solar radiation that reaches the surface of the panel. Photovoltaic (PV) performance and efficiency are highly affected by its angle of tilt with respect to the horizontal plane.
Sado Kerry A. +2 more
doaj +3 more sources
The association between three-dimensional measurement of posterior tilt angle in impacted femoral neck fractures and osteonecrosis of the femoral head [PDF]
BMC Musculoskeletal Disorders, 2023 Background Hollow screw internal fixation is commonly used in clinical treatment of impacted femoral neck fractures. Previous studies have demonstrated a correlation between the preoperative posterior tilt angle of the femoral head and failure of ...
Bo Cong, Haiguang Zhang
doaj +2 more sources
Tilt-angle stimulated Raman projection tomography. [PDF]
Opt Express, 2022 Stimulated Raman projection tomography is a label-free volumetric chemical imaging technology allowing three-dimensional (3D) reconstruction of chemical distribution in a biological sample from the angle-dependent stimulated Raman scattering projection images. However, the projection image acquisition process requires rotating the sample contained in a
Lin P +6 more
europepmc +4 more sources
Characteristics of Elliptical Vibration-Assisted Cutting with Variations in Tilt Angle of Elliptical Locus [PDF]
Micromachines, 2023 Elliptical vibration-assisted cutting (EVAC), one of the advanced micromachining methods, enables results not possible with traditional ultra-precision machining.
Senbin Xia +4 more
doaj +2 more sources
The Influence of Relative Curve Correction and Upper Instrumented Vertebra (UIV) Tilt Angle on Post-operative Shoulder Balance Following Posterior Spinal Fusion (PSF) in Lenke Type 1 and 2 Adolescent Idiopathic Scoliosis (AIS) Patients [PDF]
Global Spine JournalStudy Design Retrospective study. Objective To investigate the relative curve correction of Proximal Thoracic (PT) and Main Thoracic (MT) scoliosis curves and their relationship with post-operative UIV tilt angle as well as post-operative shoulder ...
Chris Yin Wei Chan MS +4 more
doaj +2 more sources
Energy and Built Environment, 2022 Photovoltaic (PV) system's performance is significantly affected by its orientation and tilt angle. Experimental investigation (indoor and outdoor) has been carried out to trace the variation in PV performance and electrical parameters at varying tilt ...
M.A.A. Mamun +3 more
doaj +3 more sources
An Experimental and Mathematical investigation of optimal tilt angle and effects of reflectors on PV energy production [PDF]
MATEC Web of Conferences, 2021 The performance of the solar photovoltaic panels relies on its direction and tilt angle with respect to the horizontal to obtain better conversion efficiency.
Krishna Yathin +3 more
doaj +1 more source
Energies, 2022 A variety of variables influence the optimal tilt angle of a PV panel, including the characteristics of the panel, the local seasonal weather variations, the number of daylight hours the panel is exposed to and the ambient temperature of the surroundings.
Essa Alhamer +2 more
doaj +1 more source
Case Studies in Thermal Engineering, 2021 The importance of ventilation is highlighted through the recent COVID pandemic particularly in populated societies with crowded buildings. The application of single solar chimney ventilator with and without fin, at different tilt angles, is evaluated for
Yan Cao +5 more
doaj +1 more source