Some Brake-Tests and Deductions Therefrom

Reducing kickback of portable combustion chain saws and related injury risks: laboratory tests and deductions.

Portable chain saws are still very dangerous machines. Reduced prices of these machines mean they are widely available to people who like DIY (do it yourself) and professionals. Kickback of chain saws is extremely dangerous for the operator. This paper discusses the results of laboratory investigations of combustion chain saws. The tests were conducted on a standardized kickback test stand and ...

Kickback risk of portable chainsaws while cutting wood of different properties: laboratory tests and deductions

Portable chainsaws are associated with substantial risk and can cause serious injury to operators, especially during kickback. This paper presents new results from research and analyses conducted regarding the impact between the different properties of wood on this occurrence. In an open area, such differences may include: wood species, humidity, temperature and the facing angle of the wood fib...

Foreign Income and Domestic Deductions

Some Tests of Symmetry ·e Some Tests of Symmetry

CARL NOBUO YOSHIZAWA. Some Tests of Symmetry. (Under the direction of C.L DAVIS) Three nonparametric tests of symmetry about an unknown value are considered for continuous univariate distributions. Each test statistic is defined as the difference between the sample mean and an estimator of the median. Two of the median estimators are special cases of general quantile estimators which were propo...

Brake Fluid Quality and Brake Performance

The condition of brake fluid is important to automotive safety, reliability and brake system longevity. Brake fluid absorbs moisture over time. Increasing moisture levels in the brake fluid lower the boiling point, increase viscosity and cause corrosion of system components. Brake fluid with high moisture content can boil when extreme braking is required or a pad sticks. The effect of boiling i...