Information on spinal loading for using lift assist systems for airport baggage handling is lacking. We conducted a laboratory study to evaluate a vacuum lift system for reducing lumbar spinal loads during baggage loading/ unloading tasks. Ten subjects performed the tasks using the industry average baggage weight of 14.5 kg on a typical two-shelved baggage cart with or without using the lift sy...

An experimentalinvestigation has been made of the subsonic lift, drag and longitudinal stability characteristics of models representing some alternative slender airbus configurations. For the same wing planform of aspect ratio 1.4 the lift, drag and pitching moment have been measured for two wings of maximum thickness/chord ratio 4 and 9 per cent respectively, both without and with various body...

Spectrum whitespaces and dynamic spectrum sharing have become important and interesting topics in recent years. As regulators and parties are making comments about regulations, it is important to be able to quantify the effect of potential regulations. Of particular interest are the TV whitespaces, whose use has been legalized in the USA [1], Canada [2], UK [3], and Singapore [4] as of 2015. We...

Abstract: We present a model of the TV-advertising market that encompasses both the product markets and the market for TV programs. We argue that the TV industry has several idiosyncratic characteristics that need to be modeled, and show that the strategic interaction in this industry differs from other industries in many respects. We find that a move from a TV monopoly to a TV duopoly may redu...

Abstract: We present a model of the TV-advertising market that encompasses both the product markets and the market for TV programs. We argue that the TV industry has several idiosyncratic characteristics that need to be modeled, and show that the strategic interaction in this industry differs from other industries in many respects. We find that a move from a TV monopoly to a TV duopoly may redu...

Facial aging is the progression of three processes: skin and soft tissue laxity, superficial skin changes, and volume loss [1-5]. Understanding these processes is essential when intending to achieve natural results for the aging face. Since Mitz and Peyronie [6] defined the superficial musculoaponeurotic system (SMAS), facial rejuvenation techniques have evolved from subcutaneous rhytidectomy t...

Inertial microfluidics has been widely used in high-throughput manipulation of particles and cells by hydrodynamic forces, without the aid of externally applied fields. The performance of inertial microfluidic devices largely relies on precise prediction of particle trajectories that are determined by inertial lift acting on particles. The only way to accurately obtain lift forces is by direct ...

Openand closed-loop control of vortex shedding in two-dimensional flow over a flat plate at high angles of attack is numerically investigated at a Reynolds number of 300. Unsteady actuation is modeled as a body force near the leading or trailing edge, and is directed either upstream or downstream. For moderate angles of attack, sinusoidal forcing at the natural shedding frequency results in pha...

OBJECTIVE To evaluate deep-plane face-lift vs superficial musculoaponeurotic system (SMAS) plication face-lift in correcting the melolabial fold, jowl, and cheek areas of the face in short-term follow-up. DESIGN Masked, randomized review by 4 board-certified facial plastic surgeons experienced in rhytidectomy of full-face (frontal, oblique, and lateral views) before-and-after photographs of 2...

OBJECTIVE Change in psychophysical capacity, calculated as the ratio between physical capacity and perceived effort, may be a determinant of change in perceived disability. The aim of this study was to identify determinants for change in perceived disability, as measured with the Roland Morris Disability Questionnaire (RMDQ), in patients with non-specific chronic low back pain after rehabilitat...