In addition, 13 states adopted branch reforms before the data started, and thus have no pre-adoption observations from which to calculate the first difference. We note that it is possible for researchers to justify the use of prior-treated units as comparisons units—for example, a number of ...
Next grind down the portion of rib that is glued to the baseplate so that it will form a sloped line going from the ½” tall height of the rib to the center ¼” tall strip (editor’s note: its easier to layout the rib patterns with this slope in mind and save the grinding)....
After observing backpackers struggle for years with compass orientation, I am absolutely astonished that dogs can not only calculate declination, but can actually detect small changes in it. Let’s see, for 17 degrees westing, do I subtract or add that to the heading? It’s gotta be add, r...
There is a limit to the temperature difference across the cooling coil that air-cooled equipment can produce because of the refrigeration cycle. These types of units can typically produce a 20°F to 25°F delta T in the cooling condition. An engineer should always calculate the entering air t...
parts designed for light weight, durability and as few problems as possible during deployment. Considering the speed at which a skydiver is typically free falling -- about 120 mph (193 kph) -- and the lack of options if something goes wrong, a parachute rig needs to be incredibly reliable...
To calculate the gear ratio or development you must count the teeth of the pinion and the crown and perform the following calculation: Crown Teeth / Pinion Teeth The chain is the connecting element between the pinion, located on the motor, and the crown, on the rear axle. The chain must ...
Your weight. Your bathroom scale probably rounds to one tenth of a pound, so you might weight 151.1 lbs. But do you really? You could weight 151.14, or 151.143. The possibilities for weight are endless. Money. There was a time in the distant past when money was finite (it was the num...
This allows us to calculate a nanosheet mobility of 37 ± 4 cm2 V−1 s−1, reasonable for electrochemically exfoliated MoS221,53. We can support this result using several direct measurements. First, we used time-resolved pump-probe terahertz spectroscopy to determine the room-temperature AC...
On the other hand, using Inverse Kinematics we can set the desired position of the end effector, and the program will automatically calculate the angles for each joint in order the robot to get to that desired position. I actually made the program in a way that we can use both methods at...
To calculate the amount of chloride physically bound in C-A-S-H, one needs to determine the C-A-S-H content, which can be very challenging in blended cement systems without relying on complex hypotheses (e.g., the amount of water in the C-A-S-H, the incorporation of guest ions, ...