This article deals with the possibility of partial replacement blast furnace slag (GGBFS) fly ash after denitrification (FAD) in alkali-activated materials. Physical-mechanical and durability properties were tested, hydration reaction was monitored, infrared spectroscopy performed. Results compared between mixtures prepared without (FA), also a mixture based only on GGBFS. The basic result is t...

Major commercial applications of chelators include the pulp and paper, textile, metal, photographic, cosmetic and detergent industry.The substitution of polyphosphates in P-free washing products with complexing agents such as nitrilotriacetic acid (NTA), sodium citrate, sodium carboxymethyltartonate (CMT) and recently co-polymeric carboxylic acids and inorganic builder Zeolite type A enabled th...

Albert Woolley and Cecil Roe were healthy, middle-aged men who became paraplegic after spinal anaesthesia for minor surgery at the Chesterfield Royal Hospital in 1947. The spinal anaesthetics were given by the same anaesthetist, Dr Malcolm Graham, using the same drug on the same day at the same hospital. The outcome for the patients and their families was devastating, as it was for the use of s...

The parameter estimation of a traffic model based on the fractional Brownian motion (fBm) is studied. The model has three parameters: mean rate m, variance parameter a and the Hurst parameter H . Explicit expressions for the maximum likelihood (ML) estimates m̂ and â in terms of H are given, as well as the expression for the loglikelihood function from which the estimate Ĥ is obtained as the max...

Many special industries exist altitude, toxic, flammable, explosive and other dangerous work environment and serious threat to the lives and safety of the staff. Development of special robots to replace human work is urgent need. Therefore, the development of special automated robot instead of doing physical labor is the future trend of social development . In recent years, wall-climbing robots...

The evolution from natural gas usage to new technologies, such as the use of hydrogen fuel or electricity‐based heating, strongly influences oxidation stainless steel surface in reheating furnace. Thermogravimetric tests using different simulated combustion and induction conditions were performed for austenitic AISI 301 304, ferritic 444 grades. Simulated furnace atmospheres methods based on me...

When industrial pipelines are used to transport production materials, the scale can easily form on inner wall of a pipeline due long-term contact with liquid medium. Scaling in is common problem that poses great threat process and environmental protection. In this paper, influence temperature fouling removal pipes studied. A finite element simulation model was established for guided wave propag...