In this paper, it is discussed that an on-line ultrasonic hydrochloric acid concentration meter according to the relationship between the concentration, temperature and ultrasonic velocity of hydrochloric acid solutio...In this paper, it is discussed that an on-line ultrasonic hydrochloric acid concentration meter according to the relationship between the concentration, temperature and ultrasonic velocity of hydrochloric acid solution. In the experiments, it is measured that the ultrasonic velocities of hydrochloric acid solution of the different concentrations and temperatures. And it is also calculated that the velocity-concentration coefficients and velocity-temperaturecoefficients of hydrochloric acid solution.展开更多
In this paper, with the elementary method, an existence proof on solutions to the nonlinear two-point boundary value problem is given under less restrictive conditions than [1]. This generalizes the result of [1] and ...In this paper, with the elementary method, an existence proof on solutions to the nonlinear two-point boundary value problem is given under less restrictive conditions than [1]. This generalizes the result of [1] and makes it as a corollary.展开更多
文摘In this paper, it is discussed that an on-line ultrasonic hydrochloric acid concentration meter according to the relationship between the concentration, temperature and ultrasonic velocity of hydrochloric acid solution. In the experiments, it is measured that the ultrasonic velocities of hydrochloric acid solution of the different concentrations and temperatures. And it is also calculated that the velocity-concentration coefficients and velocity-temperaturecoefficients of hydrochloric acid solution.
文摘In this paper, with the elementary method, an existence proof on solutions to the nonlinear two-point boundary value problem is given under less restrictive conditions than [1]. This generalizes the result of [1] and makes it as a corollary.
