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Low-Stress Mechanical Properties of Wool-Cotton Blended Fabrics

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Hand-spun and hand-woven textiles made of natural fibers are known as khadi fabrics. Khadi fabrics are known for their luxury, excellent handle, and comfort properties. These properties can not be obtained using the methods employed for machine-made textiles. The fabric handle is associated with low-stress mechanical properties. In this work, the low-stress mechanical properties of wool-cotton blended khadi fabrics are studied and the effect of different blend proportions of wool fibers and yarn count on the fabric properties is investigated. The combination of different wool varieties was spun using a hand-operated spinning machine (charkha) and used as weft, while the various cotton-wool blends were employed as warp. A total of 27 types of wool-cotton khadi fabrics were woven on a handloom. The low-stress mechanical properties were measured using the SiroFAST system. It was found that the extensibility, formability, shear rigidity, bending rigidity, relaxation shrinkage, and hygral expansions of fabrics were influenced by the proportions of wool blend/mix and yarn linear density. The shear and bending rigidity of wool-cotton fabric are significantly influenced by the wool content in wool-cotton blended warp yarn as well as the proportion of AM wool in weft yarn (p < .001). From a formability point of view, wool-cotton fabrics perform well during garment manufacturing irrespective of a wool type. Relaxation Shrinkage in wool-cotton fabric is higher in warp wise than weft wise and increases with increasing the amount of wool for each type of fabric. The wool dominant fabric has higher hygral expansion in the weft direction than the warp direction.

摘要

由天然纤维制成的手纺和手织纺织品被称为卡迪织物. 卡迪面料以其奢华、出色的手感和舒适性而闻名. 使用机器制造的纺织品所采用的方法无法获得这些性能. 织物手柄与低应力机械性能有关。本文研究了毛棉混纺卡迪织物的低应力力学性能,研究了不同混纺比例和纱线支数对织物性能的影响. 采用手工纺纱机(charkha)纺制不同羊毛品种的组合纱,并将其作为纬纱,采用不同的棉毛带作为经纱。在手摇织机上共织出27种毛棉卡迪织物. 采用SIRO-FAST系统测试了低应力力学性能. 研究发现,羊毛混纺/混纺比例和纱线线密度对织物的拉伸性能、成形性能、剪切刚度、弯曲刚度、松弛收缩和湿胀性均有影响. 毛棉混纺经纱含毛量和AM毛在纬纱中的比例对毛棉织物的剪切和弯曲刚度有显著影响(p<0.001). 从可成形性的角度来看,无论羊毛类型如何,毛棉织物在服装制造过程中都表现良好. 毛棉织物的松弛收缩率在经纬向上高于纬向,并且随着每种织物中羊毛含量的增加而增加. 以羊毛为主的织物在纬纱方向的湿膨胀比经纱方向的湿膨胀大.

Source: https://www.tandfonline.com/doi/full/10.1080/15440478.2020.1726252?af=R

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What wattage should you be vaping CBD at?

What wattage should you be vaping CBD at? We get asked this question all the time and it’s not such a simple answer. What is important to remember when vaping CBD is that you don’t want to crank up your wattage very high because then the coil is too hot and is essentially burning the CBD.

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What wattage is the best wattage to vape CBD? We get asked this question all the time and it’s not such a simple answer.

What’s important to remember when vaping CBD is that you don’t want to crank up your wattage very high; this is because the coil will get too hot and you’ll end up burning the CBD. When this happens you are essentially wasting your CBD product. Also, when you burn the CBD you won’t receive any of its benefits.

We recommend keeping your wattage between 5 – 15 watts for the best vaping experience. This will also insure that you are getting the most out of your vape-able CBD product.

Adjust-To-Taste Method

Adjust-To-Taste Method

To find the perfect wattage for you to vape CBD we recommend the to adjust-to-taste method. This means for you to start your wattage low, maybe at 5 watts. From there you can judge whether or not you like the amount of power and flavor. 

If you are not satisfied, turn it up to 10 watts and start the process over. Do this until you reach a wattage that you like and just keep it there. However, be sure not to pass 15 watts.

Adjust To Taste Method Checklist:

  1. Is it satisfying?
  2. Do I like the flavor?
  3. Am I still within the safety range between 5 – 15 watts so that I don’t burn the CBD?

CBD Vape Device

CBD Vape Device

Now, how do you pick the perfect device to use with CBD? When you are shopping around or perhaps digging through all of your existing vape gear, keep in mind that there are many different vaping devices on the market. Also, there exist many tanks, atomizers and cartridges and they all are different. 

Since a lot of the sub-ohm tanks on the market today require coil heads that have lower ohms, we recommend you stay away from those. They require a lot more wattage and that is what you don’t want with vape-able CBD. If you really want to use your sub-ohm tank, try and find a coil head that has a higher ohm such as 0.5 or higher.

Pod Systems

The best device to use when vaping CBD in our opinion are pod systems and we will tell you why. Pod systems have coils in them that are built with higher ohms such as 1ohm or sometimes even 1.6 ohms. 

The higher the ohms, the less wattage you need to power that coil which is exactly what you are looking for when vaping CBD. Pod systems have a battery, and that battery is set to a particular wattage and most of them do not have the ability to adjust that wattage. 

The good news is, a lot of these pod systems are only putting out between 10-15 watts and that is plenty of power to get the most out of your favorite vape-able CBD product.

Vaping CBD isn’t too difficult but we wanted to point out a few key points that are important to remember so that you get the most out of the wonderful compound known as CBD.

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Source: https://savagecbd.com/blogs/savage-cbd/what-wattage-should-you-be-vaping-cbd-at

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Florida high school official fired for using legal medical marijuana

Gulf War veteran Mike Hickman used legal medical cannabis instead of dangerous opioids. When district officials found out, they fired him.

The post Florida high school official fired for using legal medical marijuana appeared first on Leafly.

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Florida high school official fired for using legal medical marijuana | Leafly











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When a fight broke out among students at Belleview High School in central Florida, school official Mike Hickman entered the fray and put his body on the line to intervene. Nothing in the school’s administrative code tasked him with risking himself to secure his students’ safety, but he did so anyway.

A school official’s good deed didn’t go unpunished: He was fired after stepping in to stop a schoolyard fight.

A Marine combat veteran who suffered serious injuries while serving in the 1990-1991 Gulf War, Hickman has spent the past thirty years living with chronic pain from those wounds—and from a string of surgeries he underwent to heal them. For a time he relied on prescribed opioids for relief, but then found cannabis worked far better. He could gain relief without the serious side effects—and risk of addiction and overdose—that came with opioid use.

Hickman performed his job at Belleview—where he worked as the school’s student services manager—admirably, for years, while privately managing his medical condition.

Then came the schoolyard fight.

Punished for his good deed

It happened a year ago, in Nov. 2019.

While breaking up the brawl, Hickman suffered a new injury—one serious enough to require a visit to a worker’s compensation doctor. Acting on behalf of his employer, that doctor required him to submit a urine sample. The sample wasn’t part of Hickman’s treatment. Its only purpose was to test for drug use.

When the urine test came back positive for THC, Hickman’s 10 years of service to Marion County Public Schools ended. The Marion County School Board fired Mike Hickman, pointing to district policy prohibiting employees from using cannabis for any reason, even if that use takes place off school grounds and at the recommendation of a physician.

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Is Cannabis Better for Chronic Pain Than Opioids?

Go on opioids, or lose your job

District officials offered to limit his punishment to a suspension if Hickman ended his use of medical cannabis. Forced to choose between his career as an educator and the medicine that secures his quality of life, Hickman chose his medicine.

Mike Hickman’s medication is legal according to state law. But it’s against school district policy.

Medical cannabis has been legal in Florida since 2016, when 71% of voters approved a state constitutional amendment allowing doctors to recommend it to their patients. And according to a 2019 article from MJ Biz Daily, business is now “booming, with an average of nearly two dispensaries opening each week across the state.”

There’s no disputing the legality of Mike Hickman’s cannabis use under state law. Nor does anyone allege that he came to work impaired, or that he failed in any way to perform his official duties with the utmost skill and professionalism.

But after months of hearings and legal wrangling, none of that mattered. On Nov. 4, the Marion Public School Board voted 5-0 to terminate his employment.

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What about the children?

Hickman has declined to discuss the case publicly. Shortly after the school board’s Nov. 4 decision, Hickman’s attorney, Mark Herdman, told a local reporter the action “was just another unfortunate decision handed down by the Marion County School Board to fire yet another good employee.”

But to lose your employment, including your place in the lives of countless young people who look up to you as an educator, a mentor, and a pillar of the community, goes far beyond a simple job loss. Seeing someone who served his country with honor, and was wounded in the field of battle, be sacked for choosing a safe, effective medicine exposes a terrible hypocrisy at the heart of the War on Drugs.

For decades, America’s weed warriors have justified their destructive prohibition against a beneficial plant by appealing to the fate of “the children.” What message, they ask, would it send to allow a combat veteran to smoke a joint or use a cannabis salve in the privacy of his own home instead of popping dangerous, addictive pills?

The real question is what lesson will Mike Hickman’s students learn from a society that publicly shames and summarily dismisses an upstanding citizen for something that should be nobody’s business but his own.

A cannabis Catch-22

Contacted by Leafly, several school board members directed questions to Kevin Christian, the district’s head of public relations.

District officials scrambled to find a way to justify Hickman’s firing. At issue is a long-outdated zero-tolerance policy for a medication that’s now legal.

At first Christian tried to frame the issue as Hickman’s failure to disclose his use of medical cannabis to school authorities prior to failing his drug test—“that’s really a big portion of what the school board expressed concern over”—though he eventually conceded that nothing in the school board’s policy would have prevented Hickman from being fired on the spot for simply making such a disclosure.

In fact, that policy specifically lists marijuana among prohibited substances, with no consideration of whether it’s legal under state law. This zero-tolerance approach to maintaining a “drug free workplace” has remained unaltered for decades. The school board failed to update the district’s policies in any way following the legalization of medical cannabis in Florida four years ago.

School board hiding behind federal law

Even now, the school board says the fact that cannabis remains federally illegal prevents them for making any further allowances, since public schools receive federally funding that could theoretically be cut off if they permit even a single exception.

Back in 2019, a committee in the US House of Representatives directed the Office of Personnel Management to review policies surrounding the hiring and firing of federal employees in states with legal cannabis, writing:

The Committee encourages OPM to review its policies and guidelines regarding hiring and firing of individuals who use marijuana in states where that individual’s private use of marijuana is not prohibited under the law of the State. These policies should reflect updated changes to the law on marijuana usage and clearly state the impact of marijuana usage on Federal employment.

But so far, no such action has been taken at the federal level.

Meanwhile in Florida, a bill “prohibiting an employer from taking adverse personnel action against an employee or job applicant who is a qualified patient using medical marijuana” was introduced in early 2020, but died in committee.

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Stuck in one of Florida’s medical marijuana deserts? Help may be on the way

The next employee may ignore the fight

The Marion County School Board voted unanimously to terminate him despite overwhelming support for Hickman from students, faculty, parents, and the Marion Education Association, a local teachers union.

“Imagine if this employee just sat back and let the two students continue to fight without regard for their safety,” Chris Altobello, Marion Education Association executive director, told the Ocala Star-Banner newspaper after Hickman’s firing. “We wouldn’t be here right now.”

Hickman, Altobello added, was no more impaired “than someone who took an aspirin for a headache. They implied that this is tantamount to smoking pot in the boys bathroom!”

Lazy policy results in a good man’s firing

Eventually a review process landed the case before Judge Suzanne Van Wyk of the state Division of Administrative Hearings in Tallahassee. Wyk upheld Hickman’s firing, though not without reservations.

In an eight-page decision, Van Wyk noted Hickman’s argument that it’s unfair to punish someone for using legal medical cannabis when the school board would not object to him “teaching under the influence of opioid pain medications, which he took for years prior to the availability of medical marijuana.”

Still, the best deal offered to Hickman was to stop using cannabis and return to work after a 20-day suspension. Or, put another way: Keep suffering in pain; or take dangerous, addictive pills; or lose your job.

Mike Hickman chose his health and lost his job.

That’s a choice nobody should ever face.

David Bienenstock's Bio Image

David Bienenstock

Veteran cannabis journalist David Bienenstock is the author of “How to Smoke Pot (Properly): A Highbrow Guide to Getting High” (2016 – Penguin/Random House), and the co-host and co-creator of the podcast “Great Moments in Weed History with Abdullah and Bean.” Follow him on Twitter @pot_handbook.

View David Bienenstock’s articles

Source: https://www.leafly.com/news/politics/florida-high-school-official-fired-for-using-legal-medical-marijuana

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CBD/CBG mixture

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Visit our community site for vetted suppliers at http://theCBD.place. It’s time that this subject was given more internet exposure. We are here to discuss topics related to medical marijuana and our experiences using CBD. Please do not assume that anyone here is a medical professional.

Source: https://www.reddit.com/r/CBD/comments/k0867y/cbdcbg_mixture/

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