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Not a bad program to work on pdf documents and comes with an online storage box. It does require a monthly subscription fee for the service, but may be more affordable for some if you don't already have the more expensive Adobe Acrobat or other program.
Kathy
2014-05-08
Nice program. Was able to learn without reading the guide much. Would like the option to pay per document instead of subscribing via monthly or yearly.
David H
2017-03-10
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PDFfiller makes my work life so much easier. I use it for all forms needed for credentialing or for our insurance plans. I use it daily.
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I do not at this time have any dislikes. It has made things so much easier for me I do not see a downside yet.
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I highly recommend this product to anyone looking to save time and make your work life easier.
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I am able to fill out forms online that I have had to do by hand in the past. This is a time saver.
User in Medical Practice
2018-12-31
Good product for the money this product is well priced which is great for a startup business. The accessibility of acord forms is a big plus. I do wish it had a few more features that would make it even better - like the ability to attach an email without having to save in pdf and upload - and having a task option for future projects would be so great. Ability to create and save documents required by insurance industry is a plus. I like being able to access the program from anywhere and being able to upload documents for client files. Does not have ability to do sub folders and wish there were a section for each client for notes for tracking of conversations. Also wish there were a calendar where you could add tasks with reminders.
Debbie H.
2017-11-14
Really easy to use site is very easy to navigate through and honestly it has all the tools I need, would reccomend, but I do feel it should be a little cheaper than $20 a month!
Elisa Fox
2024-05-27
I have been surprised at how 'user… I have been surprised at how 'user friendly' pdfFiller is. It is easy to download forms from my computer and I appreciate that.
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2022-02-08
Great app, but even better customer service. I needed to cancel my membership for financial reasons, but I failed to do so before it renewed and my bank account was drafted. I submitted a request through the website for support and requested a refund. *** replied via email within an hour and had already issued the refund. Clearly they care about their customers, provide easy communication options and have fair policies in place.
Courtney W
2021-11-17
Plenty of useful options Plenty of useful options, convenient design. I like the feature of editing pdf files online ans storing them in the cloud
Timur Kabizhanov
2021-06-13
ease of subbitting It can be a little confusing and I thought my docs from previous years were saved so they would populate but they didn't but I like the ease of submitting the forms to the IRS.
Francie Holycross
2025-02-10

Crack Equation Work Feature

The Crack Equation Work feature simplifies solving complex equations, providing you with clear steps and solutions. It transforms your approach to equations, making it easier to understand and tackle mathematical challenges effectively.

Key Features

Step-by-step breakdown of equations
User-friendly interface
Instant solutions with clear explanations
Support for various types of equations
Accessibility across different devices

Potential Use Cases and Benefits

Homework help for students
Quick reference for teachers
Assistance in test preparation
Problem-solving for engineers and scientists
Support for everyday calculations

This feature addresses the challenge of understanding and solving equations. By providing clear instructions and solutions, it helps you gain confidence in mathematics, ultimately enhancing your problem-solving skills. Whether you are a student, teacher, or professional, the Crack Equation Work feature serves as a reliable companion in your mathematical journey.

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(11) and the ASTM standard E399 that measures plane-strain fracture toughness. The equation used by the above ASTM standard to calculate the crack length is [1](20) a/W=0.99973.95U+2.982U 2 3.214U 3 +51.52U 4 113.0U 5 where(21) U=1/{1+[(ABV m /P)(4W/S)] 1/2} and Vm is the COD.
Regrouping gives the critical crack size for a given applied tensile stress: SCR = NCR/Y(c)0.5. The critical crack size, the largest flaw survives for a given applied stress is: Max=(NCR/Is)2. Once the critical stress is reached, fast fracture occurs with the upper limit of the crack tip velocity the speed of sound.
Note that the stress concentration factor is a function of the geometry of a crack or notch, and not of its size. As the radius of curvature approaches zero, like the tip of a sharp crack, the maximum stress approaches infinity and therefore stress concentration factors cannot be used for a crack.
Crack growth stability is called the resistance curve, or R-curve. For brittle materials, is a constant value equal to. For other materials, increases with increasing.
In addition, crack length can also be measured by using an optical microscope, an optical grid technology (Gucci et al., 1972, Must et al., 1976, James et al., 1981), an acoustic emission method (Gautama et al., 1994) and an ultrasonic method (Ahumada et al., 1983).
Crack opening on the surface of concrete is normally measured using a crack gauge. Depending on the opening of the cracks on the surface, cracks can be described (as tiny as hairline, or cracks with a few millimeters opening). However, this procedure does not provide enough information about the depth of these cracks.
To measure a fresh crack, measure the dimension X at the surface of the concrete. To measure a weathered crack, measure the dimension Z if it's not more than 18 inches deep. Dimension Y on a weathered crack exaggerates crack width.
The critical crack length is a term used to describe the defects in materials. It is the length of the crack that grows after the fracture occurs rapidly at the same stress.

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