A new white paper from W. L. Gore & Associates, Inc., presents a systematic approach that design engineers can follow to ensure that a cable system will provide reliable performance in demanding environments and mission-critical applications.
Piezo technology specialist PI Ceramic has released a new white paper on the development and test of highly reliable multilayer piezo actuators. Because of their speed and precision, piezoelectric multilayer actuators are a driving force behind challenging motion control applications.
About 40,000 companies received questionnaires from the National Science Foundation and the U.S. Census Bureau in 2008. The results from this report, the first of its kind to gauge R&D performance on a global scale, show that the U.S. economy supports a higher level of domestic R&D ($234 billion) than some had thought.
W. L. Gore & Associates, Inc. (Gore) has announced results of a study in which they compared the measurement uncertainty between vector network analyzers and time domain reflectometers. They designed an experiment which determined if both instruments possess similar levels of measurement precision.
The authors of a new report from the Woodrow Wilson International Center for Scholars claim that the ability to estimate the social, ethical, legal, and economic impacts of emerging technologies and science is missing from our national perspective. They advocate the creation of a new institution that would assess national technology capability.
Microfuge tubes, one of the most common labware tools in molecular biology labs, have an Achilles’ heel. The way they are manufactured, a recent study finds, could be leading to measurement errors for researchers. Texas State Univ. researchers say the trouble stems from UV light-absorbing chemicals in polypropylene microtubes.
How many gallons of water does it take to produce $1 worth of sugar, dog and cat food, or milk? The answers appear in ACS' Environmental Science & Technology in the first comprehensive study in 30 years documenting American industry's thirst for this precious resource.
Active vibration isolation technology is a key ingredient for enabling next-generation, 22-nm scale lithography. In this white paper, PI describes the application of STACIS active isolators, which are now available in small form-factors, to advanced microscopies and nanomanufacturing.
The American Chemical Society has made public a recent study by Kuwaiti scientists in the journal Energy & Fuels that predicts world conventional crude oil production will peak in 2014. This is about 10 years earlier than other forecasts, particularly the Hubbert model, which accurately predicted peak production in the U.S. in 1970.
This paper presents a new design for a linear ultrasonic piezo motor for precision positioning developed by Physik Instrumente (PI). The design and operating characteristics of the prototypes are presented in both open- and closed-loop modes, and FEM software was used to obtain proper stator geometry.
Fume hoods have been present within society and science since the 17th century. However, throughout the years fume hoods have changed to accommodate user’s needs and laboratory applications. While the first fume hoods were fixed and far from flexible, with modern and mobility needs, fume hoods have now become flexible in design, more efficient, energy-saving, and also now have many types from benchtop or conventional fume hoods, radioisotope fume hoods, perchloric fume hoods, ductless fume hoods, and more.
It is well known that laboratories and fume hoods are generally the largest consumers of energy in a facility. Since recycling exhaust air and intermittent HVAC equipment operation are not luxuries afforded in the operation of many labs and fume hoods, it is necessary to account for four specific areas when designing or retrofitting a system.
Camera systems and scanners must have high resolutions. This creates difficulties for all applications where low light intensity means neither the resolution of the chip nor the exposure time for changing or moving objects can be freely chosen. In a new paper, Physick Instrumente details how to increase the resolution of these sensor chips.
The DC-test results of PICMA actuators are the basis for lifetime calculations under predefined conditions. The individual factors which have an impact must be taken into consideration, such as temperature, relative humidity and applied voltage. PI gathered results through an extensive series of tests still in progress.
Physik Instrumente gives a detailed look at piezoelectric operationg and theory.