In film blowing, flow instabilities limit the production rate and the quality of the film produced. The phenomena of sharkskin and melt fracture are known to commence when a critical wall shear stress is exceeded at the die lips.…
In film blowing, flow instabilities limit the production rate and…
The importance of steel ball crushing load test
As an important part of ball bearings, steel balls have a great influence on the life, accuracy, vibration and running characteristics of ball bearings. When the bearing works, the contact surface…
The importance of steel ball crushing load test
As an…
An account of an acoustic newbie's journey from bare walls to a well?balanced, sonically pleasant space.
The physics of the propagation of sound is immensely complicated, and when the assortment of materials that make up the…
An account of an acoustic newbie's journey from bare walls…
Introduction to Partition Walls:
Partition Walls also called Stud Walls are unloaded walls intended to separate apart within a building, to form an interior room/cabinet, or to separate the laundry area from the rest of the building. Since…
Introduction to Partition Walls:
Partition Walls also…
Still Confused About Masks? Here’s the Science Behind How Face Masks Prevent Coronavirus
As states reopen from stay-at-home orders, many, including California, are now requiring people to wear face coverings in most public spaces to…
Still Confused About Masks? Here’s the Science Behind How Face…
