Locking, automatic

Many cars are equipped with automatic door locks. As soon as your car reaches a certain speed, the doors will lock automatically. Many cars today are also equipped with antilock brakes. These brakes are designed to keep the wheels from skidding when the breaks are applied. Sensors on each wheel release the brake for a fraction of a second when that wheel starts to skid. How do you think the sensor can tell the difference between when the wheel is skidding and the car is stopped ... 

M88 4-speed automatie transmission is equipped with the hydraulie torque converter and electric control system with locking. When keep the stable forward status, the hydraulic torque converter can be locked automatically when the engine operates in low speed, then reduce the unnecessary slide. 

Prevention of arson Control access at all times Screen employees and casual labour Lock away flammable substances and keep combustibles away from doors, windows, fences Provide regular fire safety patrols, even where automatic systems are provided Secure particularly storage and unmanned areas... 

Machine Gun. Automatic weapons which fire small arms ammunition. They are heavier than automatic rifles and are usually provided with a fized mount, such as a tripod, or wheels and a trail. These sustain the force of recoil and provide the means by which the gun may be positioned in the direction of fire. Machine guns utilize the discharging gas, or mechanical recoil of the gun to load, eject the cartridge, lock and unlock the breech. They are fed from either a belt, clip or magazine, and are cooled by either... 

Pedersen Device. An invention of the US arms designer J.D. Pedersen, this was a noteworthy ordnance secret of WWI. It consisted of a receiver unit that could be locked into the receiver of a Springfield or Enfield rifle. Installed, it converted the rifle into a semiautomatic weapon that fired. 30 cal pistol-type cartridges from a 40-round box magazine. To hide its identity, the mechanism was officially listed as the US. 30 cal automatic pistol Model 1918. The system was dropped after the war Ref J. Quick, Dictionary of Weapons and Military Terms , McGraw-Hill, NY (1973), 342... 

Data entry What modes of data entry does it support Can we purchase only the mode that we desire How completed records are locked Does it support automatic skipping ... 

The sample is introduced into the spectrometer, locked onto the deuter-ated solvent (here CDC13) and the homogeneity optimized by shimming as described by the instrument manufacturer (this can often be done automatically, particularly when a sample changer is used). 

Automatic adjustment of mirrors and monochromators by intensity monitors and phase-locked loops is called stabilization. If the feedback breaks down, the beam will slowly move as the temperature of the optical part is changing. 

Etzel Munford (Ref 4) describe an electromechanical device that automatically measures and displays rhe embedment of each welded joint and locks out the welding machine if the embedment value is not within present upper and lower limits... 

A safety door mechanism to prevent opening while the unit is under pressure. The locking device may be actuated directly by internal pressure or indirectly through an automatic switch. The door itself may be the swing-out or sliding type. 

Fig. 1. The relationship of the sample and the various pieces of equipment necessary to automatically measure the current, and the parallel and perpendicular voltages. A standard contact configuration is shown in the main drawing, whereas a van der Pauw configuration is shown in the inset. The lock-in amplifier is used in ac photoconductivity measurements. [From Look and Farmer (1981), copyright by The Institute of Physics.]...

A suitable form of apparatus is shown in Figure 15,2. The upper test piece clamps are counterbalanced to give a small stress of between 10 and 20 kPa on the test pieces, and it is essential that the cord and pulley systems are virtually friction free. The upper clamps can also be locked in position after the test pieces are stretched and while they are cooled to the starting temperature. The standard makes no mention of any automatic heater control to raise the temperature at 1°C per minute but this is desirable if not essential. 

Electrolyte Electroreflectance (EER) is a sensitive optical technique in which an applied electric field at the surface of a semiconductor modulates the reflectivity, and the detected signals are analyzed using a lock-in amplifier. EER is a powerful method for studying the optical properties of semiconductors, and considerable experimental detail is available in the literature. ( H, J 2, H, 14 JL5) The EER spectrum is automatically normalized with respect to field-independent optical properties of surface films (for example, sulfides), electrolytes, and other experimental particulars. Significantly, the EER spectrum may contain features which are sensitive to both the AC and the DC applied electric fields, and can be used to monitor in situ the potential distribution at the liquid junction interface. (14, 15, 16, 17, 18)... 

Certain software algorithms such as the one mentioned previously uses the high-quality exact mass data from the high-resolution TOF systems to report calculated elemental compositions within the results browser. Good scientific practice mandates the use of an internal reference or lock mass to obtain valid exact mass measurements (sub-5-ppm). Exact mass measurement gives greater confidence in the confirmation of expected metabolites and allows the prediction of the elemental composition of unknowns. The Q-TOF mass spectrometer can be set up to automatically acquire exact mass LC-MS and exact mass MS-MS data to within the recommended mass accuracy guidelines of 5 ppm. 

Account locking—this provides the automatic locking of an account if a person fails to log in to the system after a specified number of attempts... 

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