V-Fold Articles

  • Title V Compliance

    Title V of the Clean Air Act Amendments assimilates all the contents of a facility's state operating permit into one binding document, in an effort to simplify permit compliance certification. However, submittal of annual compliance certification is a labor-intensive process that places significant pressure on EH&S personnel responsible for ensuring that a facility meets all the conditions in its ...

  • 3 Important Considerations For Successful THM Removal

    1) Trihalomethane (THM) removal is not one size fits all. ...


    By Medora Corporation

  • An Easy Guide to Understanding Surfactants

    What is a Surfactant? Surfactants are a primary component of cleaning detergents. The word surfactant means surface active agent. As the name implies, surfactants stir up activity on the surface you are cleaning to help trap dirt and remove it from the surface. Surfactants have a hydrophobic (water-hating) tail and a hydrophilic (water-loving) head. The hydrophobic tail of each ...

  • Everything you need to know for Easy O-ring Installation

    The O-ring…the little part that plays a big role! “What are the parts of a car?”  Most people will answer with “engine, thermostat, radiator, water pump, battery, alternator, ignition, steering wheel, tires, windows, doors, and seat belts”. Not too many people will mention O-rings. But, O-rings play an integral role in the manufacturing and operation of ...

  • 3-in-1 Flame-Ox High BTU Thermal Oxidizer - Case Study

    Environmental Issues Controlling the off-gas from a remediation project, where high concentrations of petroleum hydrocarbons are present, can be a difficult if not dangerous process when utilizing internal combustion engines and conventional oxidation technology. In more recent years, the use of high vacuum pumps to accomplish both liquid and gas phase extraction — sometimes ...

  • How To Keep Your Tablet Press Clean

    10 Easy Steps for Cleaning Your Tablet Press Nothing can slow production down like equipment that malfunctions or stops working altogether. Performing regular, preventative maintenance of equipment is essential and helps keep pharmaceutical tablet presses functioning efficiently and smoothly. ...

  • Environment v economic downturn

    Trucost research for the TEEB for Business Coalition Natural Capital at Risk finds that the environmental costs of business are costing the global economy $7.3 trillion a year (equivalent to the GDP of China) from the loss of natural resources and ecosystem services, greenhouse gas ...


    By Trucost Plc

  • Renaissance of paper models and folded plate structures in glass

    This paper presents the development of glass folded plate structures. Glass will not only be used as a transparent covering but as a load-bearing element for the whole structure. A complete outline ranging from the architectural approach including simple paper models to structural analysis will be presented. The structural concept and its functional characteristics will be confirmed by finite ...


    By Inderscience Publishers

  • Rain Gauge Fixed with 12 V Regulator

    A friend came to me with a curious problem regarding the research weather stations he maintains. The Geonor rain gauges were experiencing glitches. Some of his stations exhibited only occasional problems, and others were failing almost daily. In the plot below, the rain gauge output is in blue. It should be a steady, increasing line representing the weight of the accumulated precipitation. ...


    By Dyacon, Inc.

  • Preclinical and safety studies of V-1 Immunitor

    The safety of V-1 Immunitor (V1) has been investigated. L929; BHK; Vero; Caco-2 and CEM-SS cells have not shown cytotoxicity even at 10 mg/ml dose. Ames' mutagenicity and micronucleus genotoxicity tests came out negative at 50 mg and 2000 mg/kg doses in Salmonella and bone marrow of IRC mice. Acute and chronic dosing of V1 to Swiss albino mice and Spague Dawley rats failed to cause any deaths. ...


    By Inderscience Publishers

  • F/V Savannah Ray Defuel - Case Study

    The F/V Savannah Ray washed ashore on Long Island, near Kodiak, AK. The wreck was located on rocky shore line surrounded by vertical cliffs with open fetch on three sides to the Gulf of Alaska. Weather and location proved very difficult to access. First low tide time period at end of February allowed for defueling stern tanks (3). Second mission in early March allowed for drilling and measuring ...

  • When to Hold and When to Fold - Considerations When Contemplating a Job Change

    An environmental professional recently called me for career advice on making a job change. He has a secure job working for a federal agency, but was bored and wanted to work for an organization "with a corporate culture that truly is in sync with sustainable development." Should he make the move, and if so, which are the best companies? I answered, "No, wait until the economy improves, build both ...

  • A folded wedge model for determination of true stratigraphic thickness in directional wells

    For exploration and development the geologists and engineers try to know the true stratigraphic thickness (t). The monoclinal and folded bed models are published methods for t calculation. Both models assume parallel beds which can lead to significant deviations. In order to calculate the values of t considering the effects of both folding and stratigraphic variation we propose the 'folded wedge ...


    By Inderscience Publishers

  • Power-fold actuator noise diagnostics using statistical envelope analysis

    A good correlation between subjective evaluation and objective test is a key for any machine condition monitoring and fault diagnosis process. This paper proposes a statistical envelope analysis approach for product quality control where Fourier spectrum is selected as diagnosis analysis characteristics. The acceptance amplitude envelope is statistically calculated from the measured random ...


    By Inderscience Publishers

  • Do You Know the 4 V’s of Big Data?

    From professional sports, to advertising, to investment banking and almost everything in between. Big data is driving thousands of decisions each day that impact us all in areas big and small. But what is big data exactly, and how or why should it impact efforts in the realm of health and safety? First a definition of big data itself. Big data is a term that began to emerge over the last decade ...


    By Intelex Technologies Inc.

  • The Jindřichův Hradec statement

    Conclusions from the 3rd Pan-European Duck Symposium and meeting of the IUCN-SSC / Wetlands International Duck Specialist Group In April 2012, 83 experts in duck research and conservation from the IUCN-SSC/Wetlands International Duck Specialist Group, representing 21 countries, met in Jindřichův Hradec, Czech Republic, for the 3rd Pan-European Duck Symposium, a workshop on ...


    By Wetlands International

  • AMETEK THERMOX Introduces the WDG-V Combustion Analyzer

    Abstract AMETEK THERMOX Introduces the 5th Generation THERMOX Combustion Gas Analyzer in a CONTROL Magazine Exclusive. WDG analyzers are based on a zirconium oxide cell that provides a reliable and cost-effective solution for measuring excess oxygen in flue gas as well as CO and methane levels.  Information from the Gas Analyzer allows operators to obtain the highest ...

  • Release Announcement – SymphoniePRO Desktop Application V.3.0

    We are excited to share the latest version of software for the SymphoniePRO Data Logger. This release, version 3.0, introduces exciting new ...


    By NRG Systems

  • Symposium: Whitman v. American Trucking Association (PDF)

    In Whitman v. American Trucking Associations, Inc., the Supreme Court upheld traditional interpretations of §109 of the Clean Air Act, ruling that EPA may consider only public health and safety in setting ambient air quality standards and it may not engage in a cost-benefit analysis, as urged by industry groups. Also, contrary to the decision of the D.C. Circuit, the high Court ruled that EPA’s ...


    By Bergeson & Campbell, P.C.

  • Collapsible crate mold, folding crate mold, foldable crate mold maker

    Folding crate, foldable crate, turnover box with collapsible design. In order to suitable to your businesses limited space, you should buy a storage container that ...


    By Focare Mould Co.,Ltd.

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