PURPOSE To examine the anatomical variation of normal human collector channel orifices and their relationship with Schlemm's canal. METHODS Ten human anterior segments fixed by immersion or perfusion were dissected radially and further divided by fine dissection into corresponding inner and outer wall segments. The tissues were dehydrated, critical-point dried, sputter coated, and examined by...

A silicon nitride based waveguide device is presented for the detection of light backscattered from liquids. The device is composed of a source waveguide and a series of collector waveguides displaced relatively to the source. The experimental result shows that detection of photons backscattered from the interior of a droplet in direct surface contact with source and detector waveguides is feas...

Michael Chen and Kunle Olukotun Computer Systems Lab, Stanford University Abstract In this paper, we introduce a novel garbage collector for Java to be used for processors with speculative threads support like the Hydra chip multiprocessor (CMP). Thread speculation permits parallel execution of sections of sequential code with data dependencies enforced in the hardware, eliminating the need for...

The objective of this study is to explain the different flotation responses observed in oxidized coal flotation when using a nonpolar flotation collector, dodecane, versus a polar flotation collector, oleic acid. Particularly, the effect of each flotation collector on bubble–coal particle attachment was investigated. Colloidal probe atomic force microscopy (AFM) was used to directly measure the...

In this paper, sodium lauroyl glutamate (SLG), a stable and inexpensive green surfactant, was used as flotation collector for the first time in cassiterite flotation. The micro-flotation tests revealed that SLG could effectively collect have superior selectivity against quartz over wide pH range, compared with benzohydroxamic acid (BHA). maximum recovery of presence 93.2%, while consistently lo...

The processing capacity of a gold concentrator in Shandong mine is 10000 t/d, and the production process one-stage grinding + one roughing, two sweeping finishing adopted. fineness 50%-55% -200 mesh content, flotation concentration 40%-45%, dosage butyl xanthate used as collector 120 (g/t). amount QX-3 foaming agent 40 (g/t), field recovery rate 93.74%. Because mixing tailings backfill into raw...

sustainable development would be a key solution for climate change and renewable energy plays an important role in this policy. recently, according to increase of co2 emission and other relevant impacts, solar energy has been gaining more attentions from policy makers. thus, compound parabolic concentrators collectors are considered as one of the promising applications from solar thermal advant...