Saturday, March 21, 2020

How to Find Stories to Cover in Your Hometown

How to Find Stories to Cover in Your Hometown Are you looking for newsworthy stories to cover but don’t know where to start? Here are some places you can dig up ideas for news articles worth writing about right in your own hometown. Once you’re written your article, see if you can get it published in the local community paper, or put it on your blog. The Police Precinct If you want to cover the local crime beat, visit your local police precinct or station house (it’s good to call ahead first.) If you’re in a small town, get to know the police chief, detective and beat cops if you can. Ask them about any interesting cases or crimes they’ve handled recently, or ask to see the arrest log for a day-by-day listing of incidents. The Courthouse The local courthouse can be a treasure trove of stories. Your local district court will typically be where less-serious cases are dealt with – everything from traffic tickets to misdemeanor offenses – while a superior courthouse will be where felony trials are held. Check with the court clerk’s office to see what cases are due to be heard on any given day. Town Hall The city council, county commission, town board or village committee – whatever you call it, local government can be a rich source of stories for any reporter. Start by finding the website for your local town government. It will probably list times and even agendas for upcoming meetings. See what issues are being discussed, do some background research, then head to the meeting, pen and notebook in hand. The School Board School board meetings can also produce great stories. Again, school districts typically have websites that list school board meeting times and agendas. Such sites will probably list the members of the school board along with contact information, which can be useful for doing pre-meeting research or for doing interviews after the meeting. High School Sports Events Aspiring sportswriters need to look no further than their local high schools for games to cover. Many top sportswriters – those who cover the NFL, NBA, and MKB – got their start covering high school football, basketball and baseball games, among other sports. Check your high school’s website for schedules. Community Centers and Local Libraries Places like these often have bulletin boards listing upcoming events in your area. Such facilities also often host events like lectures from visiting speakers or authors or community forums. Art Galleries and Performing Arts Venues Is there a new exhibit by an up-and-coming artist at your local gallery? Review the exhibit or interview the artist. Is a community theater group performing a new play? Again, write a review or interview the actors or director. Local Colleges Colleges and universities typically host to a wide range of lectures, concerts, and forums that are often free and open to the public. Check the college’s website for listings of such events. Businesses Want to become a business writer? Interview local merchants for their thoughts on the state of the economy. Are their businesses thriving or struggling? Are new shops opening up or closing down on your local Main Street?

Wednesday, March 4, 2020

Understanding the Basics of Prepegs

Understanding the Basics of Prepegs Prepreg composite materials are becoming increasingly common in the composite industry due to their ease of use, consistent properties, and high-quality surface finish. However, there is much to understand about prepregs prior to committing to using this material. Prepreg The term prepreg is actually an abbreviation for the phrase pre-impregnated. A prepreg is an FRP reinforcement that is pre-impregnated with a resin. Most often, the resin is an epoxy resin, however other types of resins can be used, including the majority of thermoset and thermoplastic resins. Although both are technically prepregs, thermoset and thermoplastic prepregs are dramatically different. Thermoplastic Prepregs Thermoplastic prepregs are composite reinforcements (fiberglass, carbon fiber, aramid, etc.) that are pre-impregnated with thermoplastic resin. Common resins for thermoplastic prepregs include PP, PET, PE, PPS, and PEEK. Thermoplastic prepregs can be provided in unidirectional tape, or in fabrics that are woven or stitched. The primary difference between thermoset and thermoplastic prepreg is that thermoplastic prepregs are stable at room temperature, and generally, do not have a shelf life. This is a direct result of the differences between thermoset and thermoplastic resins. Thermoset Prepregs More commonly used in prepreg composite manufacturing is thermoset prepregs. The primary resin matrix used is epoxy. Other thermoset resins are made into prepregs including BMI and phenolic resins. With a thermoset prepreg, the thermosetting resin starts as a liquid and fully impregnates the fiber reinforcement. Excess resin is precisely removed from the reinforcement. Meanwhile, the epoxy resin undergoes partial curing, changing the state of the resin from a liquid to a solid. This is known as the B-stage. In the B-stage, the resin is partially cured, and usually tacky. When the resin is brought up to an elevated temperature, it often returns briefly to a liquid state prior to hardening completely. Once cured, the thermoset resin which was in the b-stage is now fully cross-linked. Advantages of Prepregs Perhaps the greatest advantage of using prepregs is their ease of use. For example, say one is interested in manufacturing a flat panel out of carbon fiber and epoxy resin. If they were to use liquid resin in a closed molding or open molding process, they would be required to obtain a fabric, the epoxy resin, and the hardener for the epoxy. Most epoxy hardeners are considered hazardous, and dealing with resins in a liquid state can be messy. With an epoxy prepreg, only one item needs to be ordered. An epoxy prepreg comes on a roll and has the desired amount of both resin and hardener already impregnated in the fabric. Most thermoset prepregs come with a backing film on both sides of the fabric to protect it during transit and preparations. The prepreg is then cut to the desired shape, the backing is peeled off, and the prepreg is then laid into the mold or tool. Both heat and pressure are then applied for the specified amount of time. Some of the most common types of prepregs take an hour to cure, at around 250 degrees F, but different systems are available at both lower and higher cure temperatures and times. Disadvantages of Prepregs Shelf Life: Since the epoxy is in a B-stage, it is required to be stored either refrigerated or frozen prior to use. Additionally, the overall shelf life can be low.Cost Prohibitive: When manufacturing composites through a process such as pultrusion or vacuum infusion, the raw fiber, and resin are combined on-site. When using prepregs, the raw material must first be prepregged. This is most often done off-site at a specialized company that focuses on prepregs. This added step in the manufacturing chain can add increased cost, and in some instances close to double the material cost.