The double strand break induced by an artificial restriction DNA cutter (ARCUT) was successfully repaired in human cells with high frequencies through homologous recombination.

BACKGROUND Current WHO best infection control practices for injections do not address the use of hub cutters due to insufficient evidence on safety and efficacy. OBJECTIVE To assess the impact of the use of hub cutters on 1) the frequency of needle-stick injuries (NSIs) and other blood exposures among workers and 2) the volume of sharps waste in a mass vaccination campaign setting. METHODS ...

Studi kerusakan pada pisau (cutter) mesin milling F4.04 yang sering terjadi dalam industri manufaktur telah dilakukan menggunakan metode analisa dan perbaikan. ini bertujuan untuk menganalisis cutter melakukan perbaikan sesuai dengan standarisasi ada. Analisis penyebab tepat diharapkan dapat meningkatkan efisiensi, produktivitas, mengurangi biaya produksi di manufaktur. Analisa menggambarkan ha...

Boeing South Carolina builds the Boeing 787 Dreamliner, the world's first composite-skinned wide-body jet. This new manufacturing facility is evolving to meet the demands of building this complex aircraft. One of the challenges faced by this site is providing the manufacturing workforce with the best tools for the job in an efficient manner. Two different research streams investigate this high-...

This study introduces the fuzzy theory approach as an enhancement to traditional failure mode, effect, and criticality analysis (FMECA) method in order address its limitations, which primarily stem from subjectivity a lack of quantitative analysis. The proposed method, referred FMECA improvement based on comprehensive evaluation, aims quantify qualitative aspect provides detailed outline proced...

At present, the replacement of disc cutters tunnel boring machine (TBM) is a very important and difficult manual operation. It meaningful to study TBM with robot. In this paper, machining assembly deviation new integrated cutter developed by our research group modeled analyzed using improved Jacobian–Torsor model, analysis results are verified experiments. On basis, aiming at possible radial an...

The movement of air around a rotating milling cutter is investigated experimentally by using the optical non-intrusive method PIV (Particle Image Velocimetry). located next to flat surface simulating processed material. Flow studied in three planes axial × radial direction with phases 90°, 180° and 270° from point closest desk. timing has been synchronized rotation. We observed plumes governed ...