Research
Experimental Investigations on a Four Stroke Compression Ignition Engine Using Neat Tobacco Seed Oil as an Alternate Fuel
Performance, emission and combustion tests were carried out on a four stroke compression ignition engine using tobacco seed oil by varying fuel injection pressure and fuel injection timing and compared with base line diesel. The main objective of conducting the performance test on a most widely used agricultural segment engine with tobacco seed oil to help the farming community to use tobacco seed oil in case of emergency and short term applications. At 260 Bar and 26° BTDC the performance of the engine is quite encouraging compared to the operation of the engine at standard injection pressure of 205 bar and 23° BTDC
LH-Cipher: A Linear Hierarchical Cipher approach for Data
Dividing the data into blocks and there by arranging the blocks in hierarchal order is termed as a linear hierarchical cipher approach for data .The encryption code, a access id code for each level based on the propagation code is generated in this technique. However the level propagation code and the access-id code of previous hierarchy level are matching with upper hierarchical level .The access-id code is set based on the time sensing key and a time seed, and the time seed updates with respect to the encryption pulse. By simply modifying and inversing the data security it is possible to decrease the number of key volume.
