BACKGROUND The aim of the study was to answer the question of whether earplugs provide sufficient protection in the exposure to impulse noise generated during metalworking processes. MATERIAL AND METHODS The noise generated by die forging hammer and punching machine was characterized. Using an acoustic test fixture, noise parameters (LCpeak, LAmax) under 24 earplugs, foam, winged and no-roll,...

Titanium aluminides find application in modern light-weight, high-temperature turbines, such as aircraft engines, but suffer from poor plasticity during manufacturing and processing. Huge forging presses enable materials processing in the 10-GPa range, and hence, it is necessary to investigate the phase diagrams of candidate materials under these extreme conditions. Here, we report on an in sit...

Efficient control techniques must be preceded by well-designed processes. A generally accepted definition of a well-designed process is one that is Pareto optimal, i.e., no design objective can be improved without degrading at least one other design objective. Indeed, optimal design enables effective trade-off of competing design objectives, including controllability and robustness goals. The m...

Preform design in multi-stage forging processes is critical to ensure the production of defect-free parts. Moreover, owing to the geometry and material-flow complexities in forging processes, finding the optimal preform shapes could be difficult and time consuming. This paper proposes an efficient preform design methodology based on geometrical resemblance, which requires several finite element...

In FSE 2014, an authenticated encryption mode COBRA [4], based on pseudorandom permutation (PRP) blockcipher, and POET [3], based on Almost XOR-Universal (AXU) hash and strong pseudorandom permutation (SPRP), were proposed. Few weeks later, COBRA mode and a simple variant of the original proposal of POET (due to a forging attack [13] on the original proposal) with AES as an underlying blockciph...

The pharmaceutical industry, known for its leadership in scientific innovation and as a darling of investors, is currently encountering serious challenges. Increasing costs, a limited drug pipeline, and the impending loss of patent coverage for ‘blockbuster’ drugs are changing the landscape of pharmaceutical science. Though business leadership will be essential to overcome these challenges, the...

Hi-Res Print, Annotate, Reference QuickView ACS ActiveView PDF PDF [616K] PDF w/ Links [287K] Full Text HTML Sponsored Access Section: Pharmacology Monascin and Ankaflavin Have More Anti-atherosclerosis Effect and Less Side Effect Involving Increasing Creatinine Phosphokinase Activity than Monacolin K under the Same Dosages Chun-Lin Lee, Yu-Ping Hung, Ya-Wen Hsu, and Tzu-Ming Pan pp 143–150 Pub...

or the nation, virtual care is the care of the future. For Avera Health, virtual care is the care of the present. Situated in America’s northern plains, Avera Health over the last two decades has grown its own telemedicine solutions to many of the challenges of rural health care. As a result, Avera eCARE, a far-reaching and innovative system of technology, may serve as a national model for heal...

Integrating machine learning into one of the manufacturing processes, i.e., forging, is mainly concerned with making system more intelligent by incorporating them to exhibit global understanding. Sometimes engineer/operator can find defects during or after forging operation. So, will need some input identify different types categorized defects. And also, according that, we develop fault diagnos...