Mechanical Engineering-CIME articles from April 2003

Mechanical Engineering-CIME archives from April 2003

Finding the right fit. (Editorial).(rumination on comfortable airplane seats)(Editorial)
April 1, 2003... We've all sat in coach, in the middle seat of three on a flight that seemed interminable. The guy on your left is snoring, legs spilling over into your space, and elbows sprawled on what's meant to be a shared armrest. On your right sits...

Letters.(Letter to the Editor)
April 1, 2003... TANGO AND TECHNOLOGY To the Editor: Hello, my name is Alfredo Guenzani. I'm from Buenos Aires, Argentina, and some days ago I was reading your old article about the tango and Internet (March 2000), when I discovered your magazine. (It is...

Mini face makers. (News & Notes).(innovative doll from NanoMuscle Inc and Playmates Toys Inc)
April 1, 2003... A doll introduced at February's American International Toy Fair in New York has large, expressive eyes that silently open, blink, look around, and close when a child plays with it. The doll, called Baby Bright Eyes, is made by NanoMuscle...

Demand--and price--rise for natural gas. (News & Notes).
April 1, 2003... Natural gas prices are expected to top $10 per million BTUs as record high reserves were withdrawn from underground storage during the winter heating season, according to Energy Business Watch. A report prepared by Energy Business Watch's...

Only on M.E. Magazine Online.
April 1, 2003... Only on M.E. MAGAZINE OLINE @ www.memagazine.org Responses to the March Question of the Month: Is the engineering profession welcoming to women? Yes 32% No 36% Not more than others 23%...

When a multi-national design team looked to S.O.A.R. (NE/Nastran).(Southern Astrophysical Research Telescope)
April 1, 2003... THE CUSTOMER The Southern Astrophysical Research (SOAR) Telescope is a 4.2meter, clear-aperture optical/IR telescope on Cerro Pachon in the Chilean Andes. Completed in July of 2002, the $28 million dollar telescope produces images that...

Dishing out ceramics that can take it. (News & Notes).(innovations at University of California, Davis)
April 1, 2003... Ceramics nave a lot or great properties: They're hard, lightweight, and heat resistant. Unfortunately, they are also extremely brittle. It doesn't take much of a knock to shatter a teacup--or crack a spark plug insulator. Now engineers at...

Commerce reports on fuel cell vehicles. (News & Notes).(Brief Article)
April 1, 2003... The U.S. Department of Commerce's Office of Technology Policy has published a report that examines the worldwide state of fuel cell vehicle development and makes the case for government participation in basic and pre--competitive research as a...

The California Office of Environmental Health Hazard Assessment. (Briefly Noted).(Brief Article)
April 1, 2003... The California Office of Environmental Health Hazard Assessment has issued a preliminary public health goal for arsenic in drinking water that comes in far below the federal standard. The California goal is 4 parts per trillion, whereas the...

Environmental Protection Agency. (Briefly Noted).(bill proposed to regulate perchlorate in drinking water)(Brief Article)
April 1, 2003... Sen. Barbara Boxer, D-Calif., has introduced a bill calling for the federal government to regulate the level of perchlorate allowed in the nation's drinking water. The bill would require the Environmental Protection Agency to establish a...

Essex Junction Wastewater Treatment facility in Essex Junction, Vt., has selected Northern Power Systems. (Briefly Noted).(Brief Article)
April 1, 2003... The Essex Junction Wastewater Treatment facility in Essex Junction, Vt., has selected Northern Power Systems of Waitsfield, Vt., to engineer, build, and install an on--site power system. The system will burn methane gas produced by wastewater...

One manifold design suits several cars. (Computing).(use of computer simulation by Ford Motor Co)
April 1, 2003... Computer simulation helped Ford Motor Co. adapt the design of an intake manifold to fit several new, distinct vehicles. The automaker would save money by using one manifold on several models rather than making separately designed manifolds for...

Pre-product photos. (Computing).(dehumidifiers from Dri-Eaz Products Inc)(Brief Article)
April 1, 2003... Restorative drying companies move into high gear whenever a flood occurs. Often, they can save a house if they begin drying it within 48 hours of the flood to prevent mold and mildew from destroying walls, carpets, and floors. Once...

Slashing design time while raising sales. (Computing).(Krebs Engineers)(Brief Article)
April 1, 2003... Krebs Engineers of Tucson, Ariz., wants to double annual sales in five years, produce designs twice as fast, and cut order-to-delivery time by at least 70 percent. To meet those goals, the company has had to re-engineer the way it has...

Faucet design made easier with CAD. (Computing).(design strategy at Moen Inc)(Brief Article)
April 1, 2003... The story is that Al Moen, inventor of the single-handed faucet, started on the problem in 1937, after he scalded himself at an old-fashioned two-spigot sink. The first one of his faucets went into production 10 years later. The company he...

Quicker to share. (Computing).(new methods for sharing widely distributed Internet resources)(Brief Article)
April 1, 2003... A researcher at Pennsylvania State University in University Park has developed a faster method than is currently available for efficient sharing of widely distributed Internet resources, such as Web services, databases, and high-performance...

Skills grow by design. (Computing).(computer science studies at University of Iowa)(Brief Article)
April 1, 2003... Computer science students at the University of Iowa in Iowa City use computer programs they've designed to create complex, three-dimensional virtual line sculptures that can be viewed from several different perspectives, said Joe Kearney, who...

Snowplow shake ended. (Computing).(Volvo Motor Graders fixes problem)(Brief Article)
April 1, 2003... Volvo Motor Graders of Goderich, Ontario, recently found that welds near the fuel tank cracked in a small number of its graders while they were used to plow snow. In order to correct the problem, Volvo first needed to understand the root...

CAD and PLM for flexibility. (Computing).(Windmoller & Holscher installs new software)(Brief Article)
April 1, 2003... A maker of machinery and equipment for flexible packaging, Windmoller & Holscher of Cologne, Germany, is installing new computeraided design and product lifecycle management software that works together. EDS of Piano, Texas, provides the two...

Keeping job info out of the cracks. (Computing).(Cutting Edge Manufacturing Corp)(Brief Article)
April 1, 2003... Robert Scalara, who owns the Cutting Edge Manufacturing Corp., a Phoenix design fabrication firm, employs two mechanical engineers to do contract work for customers. Those customers range from architectural firms and automotive manufacturers to...

Synthesis Inc. (Briefly Noted).(introduces CAD automated mass customization software application)(Brief Article)
April 1, 2003... A software developer that specializes in parametric applications for AutoCAD users, Synthesis Inc. of Bellingham, Wash., has released an Internet-based CAD automated mass customization software application.

Visiarc. (Briefly Noted).(Brief Article)
April 1, 2003... Visiarc AB of Goteborg, Sweden, has released Visiarc Wireless Viewer for accessing and viewing technical design drawings, including CAD drawings, on Nokia's 7650 and 3650 camera-equipped imaging mobile phones.

SensAble Technologies Inc. (Briefly Noted).(new release of touch-based modeling software)(Brief Article)
April 1, 2003... SensAble Technologies Inc. of Woburn, Mass., is shipping version 6 of FreeForm, the latest release of the developer's touch-based modeling software.

MathWorks Inc. (Briefly Noted).(Matlab Student Version Release 13 launched)(Brief Article)
April 1, 2003... MathWorks Inc. of Natick, Mass., has released Matlab Student Version Release 13. This release includes the latest updates to the company's flagship products, Matlab and Simulink, for the Windows, Linux, and Macintosh operating system X...

LightWork Design. (Briefly Noted).(spins off MachineWorks division)(Brief Article)
April 1, 2003... A manufacturer of computer graphics software for rendering, simulation, and verification, LightWork Design of Sheffield, England, has spun off its MachineWorks division into a separate and independent company, MachineWorks Ltd.

Blue Ridge Numerics Inc. (Briefly Noted).(integrated add-on application made available)(Brief Article)
April 1, 2003... Blue Ridge Numerics Inc. of Charlottesville, Va., has made its software package of design--a multipurpose fluid flow and heat transfer simulation program--available as an integrated add-on application for SolidWorks CAD software from SolidWorks...

CADCAM-E. (Briefly Noted).(releases upgrade to Unigraphics-to-Mastercam translator)(Brief Article)
April 1, 2003... CADCAM-E of Farmington Hills, Mich., has released an upgrade to its Unigraphics-to-Mastercam translator, CIMMC-UG. The translator is integrated within the Mastercam environment and is useful for Mastercam users who have to work with Unigraphics...

Centric Software Inc. (Briefly Noted).(releases 3-D virtual software application)(Brief Article)
April 1, 2003... A provider of collaboration software, Centric Software Inc. of Paris, has released Innovation Center--a 3-D virtual software application that allows distributed project teams to review ideas, evaluate them, and go over the concepts with the...

Faro Technologies Inc. (Briefly Noted).(forms partnership with HighRes Inc.)(Brief Article)
April 1, 2003... Portable coordinate measurement machine manufacturer Faro Technologies Inc. of Lake Mary, Fla., has formed a partnership with HighRes Inc. of La Jolla, Calif., which makes CAD/CAM integrated 3-D digitizing software.

CNC Software Inc. (Briefly Noted).(releases Mastercam upgrade)(Brief Article)
April 1, 2003... CNC Software Inc. of Tolland, Conn., has released an upgrade to its Mastercam CAM software.

Cutler-Hammer business unit of diversified industrial manufacturer Eaton Corp., based in Moon Township, Pa., has partnered with Amtech Power Software. (Briefly Noted).(Brief Article)
April 1, 2003... The Cutler-Hammer business unit of diversified industrial manufacturer Eaton Corp., based in Moon Township, Pa., has partnered with Amtech Power Software of Pittsburgh to release ProDesign, an electrical design and coordination software program...

Two-dimensional airfoil modeler. (Software Exchange).
April 1, 2003... Capability: MultiElement Airfoils is used to simulate multiple airfoils within close proximity. Users Create two-dimensional models of the airfoils. For example, the software application can be used to model high-lift wing configurations,...

Freehand 3-D drawing. (Software Exchange).
April 1, 2003... Capability: Sketch Up 2.1 is three-dimensional design software that lets users sketch their drawings by hand and then import them into a three-dimensional computer-aided design package. They can create, view, modify, and communicate...

Casting simulator. (Software Exchange).
April 1, 2003... Capability: The casting simulation program Pam-Cast 2002 simulates a range of casting processes, including gravity die-casting, low-pressure die-casting, semi-solid, and lost-foam processes. In this upgraded version, the user can automatically...

Technical graphics. (Software Exchange).
April 1, 2003... Capability: Corel Designer 10 is a program for technical graphic creation. A feature called gravity snapping automatically locates snap points so users can precisely add or modify geometry while using any tool within the software. Editing tools...

Secrets of the deep. (Technology Focus: Fluid Handling and Fluid Power).(Johns Hopkins UNiversity research)(Brief Article)
April 1, 2003... Johns Hopkins University engineers have constructed a hydrodynamics tank 14 feet deep and 25 feet in diameter for testing computer control systems to serve as the brains for deep sea robotic exploration vehicles. Researchers are using the...

Less fuel, more dash. (Technology Focus: Fluid Handling and Fluid Power).(hybrid hydraulic drive system being tested by the US Army National Automotive Center)
April 1, 2003... The U.S. Army National Automotive Center is testing a hybrid hydraulic drive system that it believes can account for significant fuel savings and provide its trucks with a little more power. A U.S. Army 6x6 FMTV (Family of Medium Tactical...

PEEK against leaks. (Technology Focus: Fluid Handling and Fluid Power).(Brief Article)
April 1, 2003... A manufacturer in New Jersey decided to replace the polytetrafluoroethylene bushings on its spherical disc valves with something stronger that resisted deformation better. The PTFE bushings tended to deform under temperatures above...

Look ma, no hands. (Technology Focus: Fluid Handling and Fluid Power).(unmanned air combat vehicles)
April 1, 2003... The U.S. Armed Forces are counting on unmanned combat air vehicles to play a bigger role in national defense in the not-too-distant future. There's a lot of upside to using unmanned vehicles in dangerous situations, but one big downside:...

Mapping the road to water. (Technology Focus: Fluid Handling and Fluid Power).
April 1, 2003... The Department of Energy's Sandia National Laboratories and the Bureau of Reclamation have released a road map to define a research and development path for desalination technologies. This research, which the plan calls for to continue through...

From bio-slime to glass. (Technology Focus: Fluid Handling and Fluid Power).
April 1, 2003... U.S. Navy aircraft carriers require large quantities of fresh water for drinking, but can't afford the space to carry all the water they need. So, they rely on shipboard desalination systems consisting of reverse osmosis and ultrafiltration...

Examining the president's budget proposals for 2004. (Washington Window).
April 1, 2003... As part of his fiscal year 2004 budget proposal, President Bush is seeking a 4.4 percent increase in the nation's research and development budget, for a record total of $122.3 billion. Here is how the numbers stack up for programs that ASME...

Digital servo-amplifier. (New Products).
April 1, 2003... MAXON PRECISION MOTORS INC., BURLINGAME, CALIF. The DES 70/10 is a digital servo-amplifier designed for velocity or torque control of brushless motors. Sinusoidal commutation at 50 kHz is used to ensure smooth velocity and torque control even...

Self-locking patch. (New Products).
April 1, 2003... NYLOK CORP., MACOMB, MICH. According to the company, manufacturers can achieve strong vibration resistance and can reduce assembly costs by up to 40 percent with the Nylok True Blue self-locking and self-sealing patch that is permanently spray...

Optical encoders. (New Products).
April 1, 2003... THOMSON INDUSTRIES INC., PORT WASHINGTON, N.Y. High-performance, low--cost absolute optical encoders satisfy moderate to high-end accuracy requirements. The encoders feature high resolution and low inertia. These Thomson Micron encoders have...

Position sensors. (New Products).
April 1, 2003... SENTECH INC., NORTH HILLS, PA. The company's 75S2DC Series of dc-operated LVDT position sensors are designed specifically for use in factory automation and industrial process applications. The units offer linear measurement ranges up from 0 to...

Nylon sleeving. (New Products).
April 1, 2003... FEDERAL-MOGUL SYSTEMS PROTECTION GROUP, EXTON, PA. ProGard is a nylon protective sleeving for hoses and cables used in mining, marine, construction, and agriculture. The dense construction and tight weave of high denier nylon yarns enable the...

Check valves. (New Products).
April 1, 2003... VACCON CO. INC., MEDFIELD, MASS. A new line of vacuum check valves works with venturi vacuum pumps and switches to seal and maintain vacuum levels for safe, energy--efficient vacuum applications. These check valves are suitable for holding...

Pumps with ball bearing design. (New Products).
April 1, 2003... MICROPUMP INC., VANCOUVER, WASH. A new ball bearing design for the Series 5500 gear pump combines Micropump's standard magnetic drive and its cavity-style technology. The design is said to provide better pumping for commonly used heat transfer...

Circular industrial connectors. (New Products).
April 1, 2003... MOLEX INC., LISLE, ILL. Euro-c circular industrial connectors are suitable for many applications, including factory automation equipment, global positioning equipment, and medical devices. The interconnect systems meet all industry standards...

Gearboxes. (New Products).
April 1, 2003... INTERNATIONAL TRANSMISSIONS LTD., WREXHAM, NORTH WALES, U.K. The PS760 Series of gearboxes comprises two transmissions, a 4-speed and a 6-speed. Both gearbox variants have a coaxial pump drive. SAE B and SAB C mounting options are offered to...

High-precision thermistors. (New Products).
April 1, 2003... SELCO PRODUCTS Co., ORANGE, CALIF. A new line of high-precision NTC thermistors has temperature precision of [+ or -]-0.3[degrees]C, making them suitable for applications that require extremely accurate temperature control compensation. The...

Torque wrench checkers. (New Products).
April 1, 2003... LEBOW PRODUCTS INC., TROY, MICH. The company's Model 6736 Series torque wrench checkers are suited for use in fastening, but can also be used in such applications as research and development, process control, quality assurance, and calibration....

Better gripping. (New Products).
April 1, 2003... PHD INC., FORT WAYNE, IND. The newly redesigned Series GRB gripper comes in six sizes (12, 16, 20, 32, 40, and 50 mm) and is completely interchangeable I with the previous design. Units pro vide 180 degrees of total jaw rotation, allowing the...

Float level switches. (New Products).
April 1, 2003... STRAIN MEASUREMENT DEVICES INC., MERIDEN, CONN. The company is adding a new line of float level switches to its custom and standard thin film strain gauge sensors. In addition to offering off-the-shelf vertical, horizontal, and multilevel float...

Surface finishing. (New Products).
April 1, 2003... COLIBRI SPINDLES LTD., LAVON, ISRAEL. High-speed aerostatic (air bearing) spindles are for cutting and polishing optical components, as well as dicing, micromachining, and fine milling. The ZAL Series has a speed of 80,000 rpm and low runout....

Protective cover. (New Products).
April 1, 2003... ROCKWELL AUTOMATION, MILWAUKEE, WIS. A new power component solution is said to increase employee safety by providing a protective cover for NEMA starters and contactors. The protective cover is designed to help prevent accidental contact with...

Managing safety. (Product Information).
April 1, 2003... ABS CONSULTING INC., GOVERNMENT INSTITUTES DIV., ROCKVILLE, MD. People who have been given safety management responsibilities at their company, but who do not have safety training should find plenty of relevant information in So You're the...

Aluminum inserts. (Product Information).
April 1, 2003... SECO-CARBOLOGY, WARREN, MICH. The company's full-color data sheet about its Grade KX aluminum inserts features pictures, benefits, and available insert sizes of the new uncoated cobalt micrograin guide. Grade KX is said by the company to be...

Shaking hands again: technology can smooth adversity between industrial designers and mechanical engineers.
April 1, 2003... IN MANY MANUFACTURING ORGANIZATIONS, engineers coexist, albeit sometimes uneasily, with the industrial designers who shape the way the product will look on the outside. While mechanical engineers take care of laying out the mechanisms inside...

New wheels for grandma: engineers are adding enabling technologies that make cars easier and safer for an aging population to drive. (Feature Focus: Ergonomic Engineering).
April 1, 2003... BY 2011, THE BABY BOOM GENERATION will begin to turn 65, and by 2030, one in five people will be age 65 or older, according to US. Census Bureau projections. The size of the older population is projected to double over the next 30 years,...

Treading lightly: paved ribbons of speed make for noisy neighbors. (Feature Focus: Ergonomic Engineering).
April 1, 2003... CAR TIRES ROLLING OVER a couple of hundred meters of corrugated roadway in Villepinte, France, play 12 seconds of music stereophonically as the vehicle passes by at 50 km/h. Dedicated in 2000, the musical road has already drawn enough...

Cell conversion: a DOE-sponsored program would ease fuel cells into cars--as backup power for all those electrical extras.
April 1, 2003... THE STOCK IN FUELS CELLS rose--figuratively and literally--after President George W. Bush called for hydrogen-powered cars in his State of the Union address in January. After all, fuel cells and the so-called hydrogen economy go together like...

Powering down: After a half-century of safety testing for the nuclear industry, a key heat-transfer lab is losing its home.
April 1, 2003... NUCLEAR REACTORS CAN GENERATE HEAT in all kinds of ways. And that's the problem. They're efficient, and the electricity they produce is cheap, and very profitable. On the other hand, they breed a sort of waste whose hazards have no historical...

Giving vent: New ideas offer to breathe some fresh air into the conventions of indoor climate control.
April 1, 2003... THERE WAS A TIME IN THE 19805 when sick buildings were all the rage. Office workers and high-rise apartment residents realized their hard-to-define maladies--everything from red eyes and sore throats to fatigue and nausea--were the result of...

Hoffer clamp-on series turbine insertion flowmeters. (Resource File).
April 1, 2003... This new line of inexpensive clamp-on insertion flowmeters is designed as an alternative to the plastic paddle wheel type flowmeter. This insertion type offers stainless steel construction and long-life hybrid ceramic ball bearings....

Bolted joint evaluation software. (Resource File).
April 1, 2003... BoltFAST consists of three distinct components: Joint Analysis, Torque Analysis and Thread Analysis. By combining a large database of fastener and interface materials and their physical characteristics, BoltFAST allows the engineer to quickly...

Parker Hannifin introduces new MB8 miniature ball valves. (Resource File).
April 1, 2003... The new series of bi-directional flow valves with a one-piece seat/packing design have a stainless steel body and are pressure rated at 2500 psig (172 bar) CWP. The MB8 design is based on the highly successful Parker MB Valve series, which has...

Film indicates stress distribution. (Resource File).
April 1, 2003... Pressurex[R] enables you to quickly and inexpensively determine force distribution and magnitude between contacting surfaces. Microcapsules within the film burst at specific pressure levels and cause an instantaneous color change, producing a...

Simplify linear motion design, setup, operation. (Resource File).
April 1, 2003... Amacoil/Uhing linear motion assemblies for positioning, indexing, scanning, winding, x-y table movement, cutting, grinding, other applications. Smooth shaft--no clogging. Drive head travel direction automatically, instantaneously...

Worm gear speed reducers. (Resource File).
April 1, 2003... Boston Gear 700 Series worm gear speed reducers have over 120 years of power transmission design expertise designed and built into each unit. Single reduction units are available in 1/6 through 25 hp and double reduction units are available...

STORM/CFD2000--CFD Software. (Resource File).
April 1, 2003... Free Trial With Full Functionality All flow speeds, heat transfer, advanced chemistry, multi-phase, and FSI. Easily customizable BCs and equation source terms. (800) 326-5155; sales@adaptive-research.com. www.adaptive-research.com...

DFS Version 4. (Resource File).
April 1, 2003... Pre-release prices now being offered for DFS version 4. See www.abzinc.com. The new version will solve problems more quickly. Version 4 also includes both control valves and pressure regulator valves, integrated utilities allowing the user to...

Penn inline entrainment separators improve efficiency. (Resource File).
April 1, 2003... Penn Separator Corp. manufactures inline separators that centrifugally separate out entrainment from steam, air, and other gases. They are available in 3/4 to 20 line sizes and are sized according to the flow rate and operating pressure....

Rotating Electrical Connectors. (Resource File).
April 1, 2003... Liquid metal wetted connectors are superior to conventional slip rings and feature sealed ball bearing construction. Durable, compact connectors offer increased reliability, low electrical noise and less than 1 milliohm resistance. Ideal for...

ANSYS Release 7.0. (Resource File).
April 1, 2003... ANSYS 7.0 offers a host of brand-new simulation capabilities, including: * Tools for nonlinear diagnostics * Layered thermal shell elements * Point/edge-to-surface contact element * Fluid/Solid Interaction (FSI) capability ...

NE/Nastran V8.2 Adds New State-of-the-Art Eigensolver. (Resource File).
April 1, 2003... NE/Nastran V8.2 adds a next-generation, PCGLSS Lanczos eigensolver. The new eigensolver is over 10 times faster than typical solvers and delivers performance gains in normal modes and dynamic response analysis. Other improvements include creep...

CAEPIPE--the new standard piping stress analysis software. (Resource File).
April 1, 2003... Once again, CAEPIPE pushes the limits. The new Windows program is comprehensive, usable and efficient. View data simultaneously through multiple windows for input, details, graphics, and results. Unmatched rendering for graphics visualization...

Gridgen Reliable GFD Meshing.
April 1, 2003... Gridgen is the interactive, graphically oriented software system for the generation of 3-D grids. Create quadrilateral and hexahedral grid cells, triangular and tetrahedral grid cells, mapped meshes, hybrid meshes including prisms and pyramids,...

OMEGALUX Complete Electric Heaters Handbook and Encyclopedia. (Resources File).
April 1, 2003... OMEGALUX Complete Electric Heaters Handbook and Encyclopedia [TM] offers equipment for thousands of industrial and lab, electric heating and temperature control applications. Over 1,000 color pages present heating cables, strip, cartridge,...

Introducing ANSYS FEMXplorer. (Resource File).
April 1, 2003... The ANSYS FEMXplorer module computes data vital to the improvement of product design performance. When combined with ANSYS, this powerful application allows analysts to make intelligent design directives given multiple competing objectives....

Weld calculations with FEA. (Resource File).
April 1, 2003... FEWeld calculates weld performance and sizes from the results of finite element analysis with shell elements. It works with Ansys and Cosmos/M on Win95/98/NT/2000. A database-driven GUI manages complex data for numerous welds, load cases,...

NEW! COSMOSDesignSTAR 4.0. (Resource File).
April 1, 2003... COSMOSDesignSTAR[TM] is a powerful design analysis program that combines high-end analysis tools with an easy-to-use, intuitive interface. Using COSMOSDesignSTAR's advanced features throughout the design cycle enables engineers to create better...

CFX-5 live! free live CFD web demonstration. (Resource File).
April 1, 2003... CFX-5 computational fluid dynamics software delivers Power, Precision, Performance and Profitl See for yourself at a live web demonstration (available only in North America). Visit our Website at www.cfx.aeat.com and register under E-vents or...