Full-dimensional computational fluid dynamics (CFD) simulations are presented for nano electrospray ionization (ESI) with various emitter designs. Our CFD electrohydrodynamic simulations are based on the Taylor-Melcher leaky-dielectric model, and the volume of fluid technique for tracking the fast-changing liquid-gas interface. The numerical method is first validated for a conventional 20 μm in...

INTRODUCTION Several macular complications related to abnormalities of the vitreoretinal interface have been classically attributed to retinitis pigmentosa of which cystoid macular edema is the most common. Other less frequent complications are as follows: epiretinal membranes, vitreomacular traction syndrome and macular holes. CASE PRESENTATION A 64-year-old woman, with the previous diagnosi...

OBJECTIVE To evaluate the influence of pilot hole tapping on pullout resistance and insertion torque of pedicle screws with a conical core. METHODS Mechanical tests using a universal testing machine were performed on pedicle screws with a conical core that were inserted into pedicles in the fifth lumbar vertebra of calves. The insertion torque was measured using a torque meter with a capacity...

Introduction: Natural materials are more efficient and attractive than synthetic materials. In this study, the sound absorption behavior by natural kenaf composite and Micro-Perforated Panel (MPP) at low and medium frequency region was investigated. Material and Methods: Initially, the results of kenaf fibers with a thickness of 10 mm were validated by the Finite Element Method (FEM) based on ...

Nowadays, the development and utilization of more engineering construction are closely related to granite. However, many granite rock masses in Qingdao contain natural hole defects, which have a great impact on mechanical properties It may even cause instability surrounding safety accidents. Therefore, this paper, we discuss influence diameter stability tunnels. Uniaxial compression experiments...

Whole yellow dent #2 corn was ground using two 43 mm Andritz hammermills (Model: 4330-6, Feed & Biofuel, Muncy, PA; JBS Live Pork LLC Mill, Fremont, IA). Both mills discharged to a shared plenum where samples were collected via sample port. Each mill equipped with 72 hammers and 300 HP motors on variable frequency drive (VFD). Corn 3 separate days create replication treatments randomized within...

In recent years, evidence for the existence of an ultracompact concentration of dark mass associated with the radio source Sagittarius A* in the Galactic center has become very strong. However, unambiguous proof that this object is indeed a black hole is still lacking. A defining characteristic of a black hole is the event horizon. To a distant observer, the event horizon casts a relatively lar...

The effects of aeration through lid filters on the hyphal growth of Lentinula edodes (oak mushroom) in sawdust cultivation bags were investigated. The aeration treatment levels were traditional 27 mm hole cotton plugs, cotton balls and combinations of seven hole sizes × two hole positions (up and under) in the lids covering plastic bags containing 1.4 kg sawdust medium at 63% moisture that had ...

A young 15 year old boy was brought to the emergency department of ophthalmology after he have had an acute accident during a tennis game , the ball accidently heat him in her left eye resulting palpebral edema and decreased visual acuity. In the emergency room, the ophthalmic exam found visual acuity in the left eye at 1/20 and loss of near acuity, 10/10 in the right eye and anterior segment u...