Steering the snow

Determining the Snow Coefficient in order to simulate the snow melting in the Shemshak Watershed Using the WetSpa Model

In mountainous regions, snow forms a part of the precipitation. Therefore, snow melting is an important process in hydrology and hydraulic in these areas that its role should be considered independently in runoff generation. The Shemshak watershed basin located in Tehran province was selected as the study area of this research to examine the efficiency of the WetSpa hydrologic model to simulate...

ZF Active Steering in the Steering Column

Steering the maintenance costs

Maintenance is a natural and necessary part of the system life cycle and its costs. It is important to control where time and money are spent and what kind of maintenance is performed. For this purpose it is necessary to be able to measure both maintenance, the efforts and costs, and the quality factor maintainability. Such measuring facilitates planning and steering the maintenance work in inf...

Null Steering GPS Array in the Presence of Mutual Coupling

A null steering GPS antenna array is designed in this paper. In the proposed method, the exact full wave antenna radiation properties with the effect of mutual couplings and nearby scatterers are considered to calculate the array steering vector, precisely. Although the proposed method is not constrained by the array geometry and the antenna element specifications, a five patch antenna elements...

Hand in the snow

As reported by MSNBC, CNN, and in newspapers worldwide: On March 12, 1948, at 9:14 pm, Northwest Flight 4422 en route from Shanghai, China to La Guardia Airfield in New York, slammed into Mount Sanford, a 16,237-foot high peak located in a remote area of Alaska, 200 miles northeast of Anchorage. The 30 military personnel onboard, including six crew members and 24 merchant mariner passengers, we...