Johnson- Knowledge Base

Frick Screw Compressors Pt. 2

Here, the focus is on screw compressors in refrigeration and the use of economizers and side loads to enhance energy efficiency. The advantages of screw compressors over reciprocating compressors are highlighted, particularly their ability to have a secondary suction port for drawing additional vapor. The economizer utilizes this port to sub-cool liquid going from the…

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Johnson- Knowledge Base
Frick Screw Compressors Pt. 1

Learn about the basic operation of rotary screw compressors and what part they play in refrigeration. We think of screw compressors as the heart of refrigeration. By understanding a little about how they are supposed to operate, it helps you in applying them in systems and knowing the important points when selecting equipment and designing…

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Johnson- Knowledge Base
Fundamentals of Vibration Measurement with Screw Compressors

Screw compressors are quite large and always a vibration signature on machines. It’s important to learn what we can from those signatures to know if maintenance is needed or if a machine needs some attention. Starting with the basics today and work up to a little more specific interpretation of screw compressor details.

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ESA
ESA Success Requires Strategy, Infrastructure, and Support Beyond Legislation
April 21, 2025

As education savings accounts (ESAs) gain traction across the United States, the conversation is shifting from policy debates to the complexities of implementation. Fueled by post-pandemic dissatisfaction with traditional school models and a desire for more customizable educational options, ESAs are being adopted in a growing number of states, often under “universal” frameworks. But…

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supply chain data analytics
Supply Chain Data Analytics Fails Without Clean Data, Ventagium Delivers the Fix
April 21, 2025

Supply chain leaders face an overwhelming volume of siloed data across ERPs, TMS platforms, and warehouse systems, yet few know how to align it for smarter decisions. The stakes are rising fast. According to Capgemini’s 2024 report Data: A Powerful Ally in Tackling Scope 3 Emission Reduction Targets, 85% of organizations cite data access…

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cancer immunotherapy
What’s Next in Preclinical Cancer Immunotherapy Research?
April 19, 2025

As the field of cancer immunotherapy rapidly evolves, researchers are turning to next-generation in vitro technologies to replicate the complexities of the tumor microenvironment with unprecedented fidelity. Organoid platforms and ex vivo patient-derived tissue models are transforming how scientists approach preclinical testing, offering deeper mechanistic insights and better predictive power for therapeutic response. With immunotherapies…

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vitro
Analyzing the Suppressive TME in In Vitro Based Assays
April 19, 2025

In the rapidly advancing field of cancer immunotherapy, accurately modeling the tumor microenvironment (TME) has become essential to improving the predictive power of preclinical drug testing. As immune-modulating therapies surge forward, with over 4,000 immune modulators in development globally, scientists are refining assay technologies that maintain the complexity of patient-specific tumor biology. In vitro platforms…

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