Dhansak consumed for three days after the death of a near one. And dhansak is used to break this abstinence on the fourth day. Hence, dhansak is never prepared on auspicious occasions like festivals and weddings. Dhansak is made by cooking mutton cubes with a mixture of various lentils and vegetables. Traditionally, four lentils (arhar dal, Bengal gram or chana dal, red masoor dal and brown masoor dal) are used, but one or more of the lentils may be omitted or substituted. The vegetables include potato, tomato, brinjal, pumpkin and fenugreek leaves: again, substitutions, such as squash for pumpkin, and sweet
Ultrasonic pulse velocity test by the Indian government to certify and check construction of residential buildings. http://tbk.vcp.ir/page-Ultrasonic-26407.html Ultrasonic pulse velocity test An ultrasonic pulse velocity test is an in-situ, nondestructive test to check the quality of concrete and natural rocks. In this test, the strength and quality of concrete or rock is assessed by measuring the velocity of an ultrasonic pulse passing through a concrete structure or natural rock formation. This test is conducted by passing a pulse of ultrasonic wave through concrete to be tested and measuring the time taken by pulse to get through the structure. Higher velocities indicate good quality and