In the laser cutting process some well-known parameters, e.g. laser power and cutting speed, play major roles in the performance of the process. Each parameter or a combination of parameters can affect the material removal volume and cutting volume efficiency. The purpose of this research is to study the effect of power and maximum cutting speed on the material removal rate (MRR) and cutting vo...

Aspect-oriented programming (AOP) seeks to improve software modularity via the separation of cross-cutting concerns. AOP proponents often advocate a development strategy where programmers write the main application (base code), ignoring cross-cutting concerns, and then aspect programmers, domain experts in their specific concerns, weave in the logic for these more specialized cross-cutting conc...

Abstract Recent advancements in open-domain question answering (ODQA), that is, finding answers from large corpus like Wikipedia, have led to human-level performance on many datasets. However, progress QA over book stories (Book QA) lags despite its similar task formulation ODQA. This work provides a comprehensive and quantitative analysis about the difficulty of Book QA: (1) We benchmark resea...

OBJECTIVE Sternal dehiscence is commonly due to wire cutting through bone. With a biological model, we measured the rate of cutting through bone, of standard steel wire closure, peristernal steel wire, figure-of-eight closure, polyester and sternal bands sternotomy closure techniques. METHODS Polyester, figure-of-eight, peristernal and sternal band closures were tested against standard closur...

A laboratory investigation of abrasive waterjet cutting wheat straws was conducted. The work aimed at a systematic characterization the capability straws, as potential alternative to discs currently adopted in no-till drills and planters for crop residue management. two level 2IV7?3 fractional factorial design applied investigate influence process parameters on efficiency straws. Straw coverage...

Of the currently available brain imaging techniques for diagnosing tumors, diffusion-weighted MRI and perfusion are cutting-edge may provide improved diagnostic capacity compared to traditional such as positron emission tomography. Moreover, they fully non-invasive avoid exposure radiation. While in general has been used research medicine decades, more recent development of multi-modal multipar...

vibration cutting (vc), elliptical vibration cutting (evc) and ordinary cutting (oc) of in738 work-pieces have been experimentally investigated in the present research. the experiments were carried out by using single crystal diamond tool and ultra-precision cnc lathe. vibration frequency is 36.16khz and the amplitude is . the influence of various cutting parameters including cutting speed, fee...