17-09-21
a brief history of blood collection systems and devices a brief history of blood…

Before the modern vacuum tube, blood collection tubes and other devices were difficult and imprecise. Etched lines in borosilicate glass tubes reflected the amount of blood the phlebotomist needed to collect. Using a disposable venous blood collection…

Before the modern vacuum tube, blood collection tubes and other…


Gratis
17-09-21
The Advantages of Canvas Tarps The Advantages of Canvas Tarps

  The Advantages of Canvas Tarps     Tarpaulins (tarps) made of canvas are some of the most versatile tarps on the market today. These tarps can be flame retardant, water resistant, and mildew resistant. Canvas tarps come in several fabric gauges, from…

  The Advantages of Canvas Tarps     Tarpaulins (tarps) made of…


Gratis
17-09-21
Bus HVAC energy consumption test method based on HVAC unit Bus HVAC energy consumption…

Bus HVAC energy consumption test method based on HVAC unit     In this study, passenger comfort and the air pollution status of the micro-environmental conditions in an air-conditioned bus were investigated through questionnaires, field measurements,…

Bus HVAC energy consumption test method based on HVAC unit     In…


Gratis
17-09-21
Introduction to Injection Mold Verification Introduction to Injection Mold…

  Introduction to Injection Mold Verification     Injection molding is one of the most commonly used production processes for plastics. This is rightly so as it offers a viable solution for the mass production of high-quality injection automotive parts…

  Introduction to Injection Mold Verification     Injection molding…


Gratis
17-09-21
Beauty & Style Beauty & Style

  Beauty & Style     Earrings, ornaments decorating the ears, have been one of the principal forms of jewelry throughout recorded history. The term usually refers to ornaments worn attached to the earlobes, though in the late twentieth century it…

  Beauty & Style     Earrings, ornaments decorating the ears, have…


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