Search results
Results from the WOW.Com Content Network
Drawdown cards are used for testing paints and coatings through wet film preparation. Black and white cards are used to measure both opacity and contrast ratio . By measuring reflectance values of both parts of the card one can gain a quantitative opacity value of a paint sample.
Drawdown charts are rectangular pieces of non-fluorescent paper [1] which are used to test a variety of coating properties. These properties include opacity , spreading rate , penetration, and flow & leveling behavior. [ 2 ]
Drawdown (economics), decline in the value of an investment, below its all-time high; Drawdown (hydrology), a lowering of a reservoir or a change in hydraulic head in an aquifer, typically due to pumping a well; Drawdown card, used for testing paints and coatings through wet film preparation; Drawdown chart, paper used to test various coating ...
Automatic film applicators vary in their construction. The most modern types of applicators use vacuum plates to hold the drawdown cards and allow a variety of application bars to be mounted. The speed and pressure of the bar can be adjusted to allow for customization of the final film thickness. The drawdown process is governed by ASTM ...
from charpoy चारपाई,چارپائی Teen payi (तीन पाय) in Hindi-Urdu, meaning "three legged" or "coffee table". [26] Thug from Thagi ठग,ٹھگ Thag in Hindi-Urdu, meaning "thief or con man". [27] Tickety-boo possibly from Hindi ठीक है, बाबू (ṭhīk hai, bābū), meaning "it's all right, sir". [28]
In painting, a pentimento (Italian for 'repentance'; from the verb pentirsi, meaning 'to repent'; plural pentimenti) is "the presence or emergence of earlier images, forms, or strokes that have been changed and painted over". [1] Sometimes the English form "pentiment" is used, especially in older sources.
The Urdu Dictionary Board (Urdu: اردو لغت بورڈ, romanized: Urdu Lughat Board) is an academic and literary institution of Pakistan, administered by National History and Literary Heritage Division of the Ministry of Information & Broadcasting. Its objective is to edit and publish a comprehensive dictionary of the Urdu language.
A passing glance at the mathematical definition of drawdown suggests significant difficulty in using an optimization framework to minimize the quantity, subject to other constraints; this is due to the non-convex nature of the problem. However, there is a way to turn the drawdown minimization problem into a linear program. [3] [4]