三亚旋流板塔气体吸收实验装置-【嘉育教仪】,嘉育教仪,石家庄大功率直流调速系统实训考核装置,泰安联合收割机发动机,咸阳驾校培训中心9A型汽车驾驶模拟器,乌鲁木齐链条、万向节传动实验台,抚顺热工实验室安装实训设备,沈阳低压电气控制及内外线施工实训装置

A do-it-yourself approach for home improvement projects may reduce your initial costs — but for certain jobs, the risks far outweigh any potential savings. If any of these projects are on your to-do list, call in the pros unless you’ve got plenty of related experience.1. Roof replacementRoofing is extremely hard and dangerous work. Any upfront savings you might get with a DIY roof replacement could easily be eclipsed by the costs of making expensive mistakes or causing dangerous accidents. Aside from having the skills and tools needed to do a decent job, you’ll also need to climb ladders, lift heavy materials and navigate a steeply pitched surface high above the ground. Risks include:Severe injury or death: Roofers face among the highest risks of work-related injuries and fatalities of any profession, according to the Bureau of Labor Statistics — and that’s for trained professionals. In addition to possible slips and falls from significant heights, there’s also risk of burns from hot bitumen (a petroleum-based roofing material) and electric shock from accidentally touching power lines.Warranty issues: Manufacturer warranties for roofing materials may cover workmanship for a limited time if the materials are installed by qualified contractors, but they generally don’t cover DIY installation.Costly damage: Improper material choice or installation may damage the roof — and if water leaks in, your home’s ceilings, walls, flooring, furnishings and wiring will suffer too.Cost of hiring a proRoofers charge about 0 to 0 per roofing square in addition to the cost of materials, which typically brings the total price of installing a new roof over your existing one to about ,400 to ,900, according to the home services company HomeAdvisor. Removing the old roof or repairing damage can add to that cost.In some cases, homeowners insurance might cover some or all of these expenses. Opting for less-expensive materials can also lower the bill. And if you’re installing an energy-efficient roof that meets certain criteria, you might qualify for a tax credit.2. Mold removalEveryone’s cleaned up a bit of mold at some point, and even the U.S. Environmental Protection Agency gives the green light on DIY mold removal for areas under 10 square feet. But once mold infestation becomes widespread, it might become necessary to open up walls, lift up carpeting or take out fixtures to fully remove it and clean and dry the space thoroughly. A DIY approach, in this case, means risking:Mold exposure: Contact with mold may cause asthmatic reactions, sore throat, skin reactions, allergic reactions, eye and nasal irritation, cough, wheezing, shortness of breath and other lung issues. This is especially a concern if you don’t have access to the proper protective gear. During the COVID-19 pandemic, N95 respirator masks — which offer protection from exposure to mold and other particles — have been largely unavailable for public purchase.Harsh chemical exposure: Chemical cleaners commonly used to kill mold are also harmful to lungs, eyes, nasal passages, throats and skin.Making the problem worse: Improper removal or sealing may release mold spores into the air. If spores get into HVAC systems, mold will blow throughout the house. DIYers may also miss mold lurking in unexpected places like crawl spaces or flooring, which could lead to further damage.Incomplete cleanup: Not properly cleaning up after the job may leave traces of mold behind that will just grow back again.Cost of hiring a proProfessional mold remediation generally costs about ,500 to ,150, or to per square foot, according to HomeGuide, a home services referral website.To make sure that money is well-spent, go with an experienced, well-reviewed mold remediation specialist who can do a thorough job.3. Toilet replacementTo install a new toilet, you’ll have to shut off the water; disconnect, drain and remove the old toilet; and seal and connect the new one. That’s a manageable task for someone with basic plumbing knowledge. But if you’re a DIY newbie, it’s trickier. Risks include:Injury: A toilet can weigh about 100 pounds and is awkward to handle. Homeowners may become injured lifting or carrying the toilet.Fumes: Sewage gasses are odorous, unhealthy and potentially flammable. Failing to stuff a rag in the exposed drain pipe after the old toilet is removed may expose you to dangerous fumes — especially in poorly ventilated spaces. (And forgetting to remove the rag before seating the new toilet will cause a very disturbing plumbing issue.)Toilet damage: Improper installation, overtightening connections or simply dropping the toilet may cause serious damage.Leaks and mold: If the base isn’t sealed properly, water can leak into the floor, damaging and weakening the area while creating just the right conditions for mold and mildew growth.Cost of hiring a proThe average labor cost for basic toilet installation runs between and 0, according to the services marketplace website Thumbtack, and that doesn’t include the price of the toilet. Underlying problems your plumber finds (such as leaky pipes, a cracked flange or leaky valves) can increase costs; disposing of your old toilet also runs about to 0, the site notes.If you’re installing a water-saving toilet, you might qualify for a rebate from your state, which could defray some of these costs.4. Window replacementReplacing drafty old windows can reduce your utility bills — but only if it’s done correctly. Installing a window is a meticulous process, and any mistakes may leave your home unexpectedly vulnerable to the elements. Other pitfalls include:Injury: Windows are heavy and fragile, bringing risk of injuries from broken glass and lifting. Falls from ladders are also a concern, along with harming passersby if a window falls out to the street.Poor energy efficiency: Improper fit or sealing can result in drafts, air leaks and higher energy bills.Water damage: A poor seal could allow water leaks that damage your home’s wood, drywall and even wiring.Home damage: You could accidentally hit a plumbing or electrical line.Warranty issues: Installing your own windows improperly may void all or part of the manufacturer’s warranty.Cost of hiring a proProfessional window installation usually runs between 5 to 0 per window, but can be much more expensive for high-end windows, according to Angie’s List, a website that provides referrals for home services pros. If the frame needs to be replaced, that’s extra.Choosing less-expensive materials reduces upfront costs. And if you’re switching to more energy-efficient windows that meet certain specifications and are professionally installed, you might qualify for rebates in some states.More From NerdWalletHome Inventory Tightened in Q3, and First-Time Buyers Felt the SqueezeMortgage Outlook: Rates Stay Low as December Deadlines LoomThe Property Line: 8 Housing and Mortgage Trends for 2021Roberta Pescow is a writer at NerdWallet. Email: USexpansion@nerdwallet.com. 7040
A Chandler mother is accused of punching and biting her preschool-aged daughter. Chandler police report that on July 31 they arrested 31-year-old Enricka Rena Johnson. Police say Johnson abused her 5-year-old daughter at their home near Arizona Avenue and Pecos Road. Investigators allege that Johnson became angry because the child would not brush her hair. She reportedly punched the girl in the eye and bit her on the arm. A medical exam noted several other injuries including a brain bleed and a broken lower leg with scarring. Johnson allegedly told police that she bit the child on the arm, hand, and shoulder. She also said, "I hit her hard, I hit her a lot."She reportedly told police that the girl broke her leg about two to four months ago, but instead of getting medical attention she taped the leg for support. The leg swelled causing the scarring. Police say they also found meth in Johnson's possession. She has been charged with child abuse.I 1005

A derecho, wildfires, and two hurricanes combined to cause massive economic losses throughout the US.According to Aon, the storms and West Coast wildfires caused billion in economic damage at a minimum.Hurricane Laura, which struck Louisiana as a Category 4 hurricane, caused the most damage at least billion in losses. Another tropical system, Hurricane Isaias, caused at least billion in economic losses.Last month’s major derecho that struck the Midwest, especially Iowa, was responsible for billion in damages.Wildfires in the west began to spread in August, causing at least billion in damages during the month. Those figures are expected to jump as the fires have grown in the first 11 days of September.“North America and Asia endured another impactful month of weather disasters in August,” Steve Bowen, director and meteorologist on the Impact Forecasting team at Aon, said. “Tropical cyclones, severe convective storms, and wildfires all left numerous financial and humanitarian challenges in their wake as the globe continues to deal with implications stemming from the COVID-19 pandemic. The focus for re/insurers went beyond just tropical cyclone activity, however, as a historic derecho in the United States left a multi-billion-dollar insurance pay-out to property and agribusiness owners, and early season wildfires destroyed thousands of structures across California.” 1410
A Boynton Beach, Florida woman accused of shooting her husband five times over HOA complaints will not be charged with attempted murder.State prosecutors declined to file charges against Lisa Barreca Thursday morning. Police arrested Barreca last month, saying she shot her husband and caused wounds to his head, both his arms, his right leg and back.Barreca planned to use the stand your ground defense.A spokesperson for the Palm Beach County State Attorney's Office said the agency did not complete their investigation within the 30-day mandatory filing period. The SAO is able to file charges in the future, if they choose to do so.The Boynton Beach Police Department completed their investigation into the case, according to Public Information Officer Stephanie Slater.Barreca was ordered to be released on her own recognizance following a Thursday morning court hearing and the case was closed in court records. Barreca, who lives on Aspen Leaf Drive, was talking about HOA complaints with her husband Eric Barreca in their kitchen when he told police that the situation started to escalate. The police report said that Lisa Barreca then went into the garage, retrieved her gun and shot him. Lisa Barreca was hospitalized and then was taken to the Palm Beach County Jail. She was later released on ,000 bond.That bond will be discharged since the case is closed, court records show. 1426
A co-author of a criminal justice textbook that included convicted sexual assailant Brock Turner’s photo next to the section titled “Rape” is standing by their decision.Last week, a student at Washington State University posted a photo of the book page on Facebook, and it has since been shared over 100,000 times.Callie Rennison, a University of Colorado Denver School of Public Affairs professor and co-author of “Introduction to Criminal Justice: Systems, Diversity and Change,” said that the vast majority of reaction she’s received has been positive. However, critics have said that even though Turner’s crimes may fit the FBI definition of rape, he was not convicted of rape as defined by California law—instead he was convicted of sexual assault.Currently, the federal definition states that if there’s penetration “with any object, any body part, that’s not consensual, then that’s rape,” Rennison said. “Brock Turner was convicted of a penetration offense and under these definitions that’s rape.”Rennison also points out that critics may not have read the entire section of the book and missed some key context.“That particular section is about how definitions change over time,” Rennison said.In fact, California did alter their definition of rape, in part due to Turner's case.She says they will still add even more context in upcoming editions of the book, a fact the publisher confirmed, as well.She contends that the reason Turner’s image was used in the first place was to keep the curriculum current and thus relatable to students in 2017.“This is who students know and students talk about,” she said. “Contemporary references are a must. Looking at older books students aren’t engaged. They don’t think it applies to them in their world.”She also hopes it starts a larger conversation about punishment. Turner’s six-month sentence—of which he served three months—was widely covered in the media.“This allows us to have the discussion about what is the time most people serve for this, and students are shocked to learn that often it's nothing.”Rennison said she and her co-author, Mary Dodge, are the first all-female team of authors to pen a criminal justice textbook.Turner’s attorney, Mike Armstrong, declined to comment for the story, and attempts to reach Turner’s parents were unsuccessful. 2332
来源:资阳报