Open your video file in the QuickTIme Player. You can trim any video or audio file that. The good news is that it’s dead easy to trim video on Mac and iOS. How to trim video clips on iOS. On iOS, video editing is done inside the Photos app (you can also do the same trick on the Mac.

This website contains software on TWO Topics:

SER - Soft Error Rates from Cosmic Rays (see bottom of this page)

SRIM Web Statistics

Above links inGreen are links to other websites.

Software -

SRIM is a collection of software packages which calculate many features of the transport of ions in matter. Typical applications include:

·Ion Stopping and Range in Targets: Most aspects of the energy loss of ions in matter are calculated in SRIM, theStopping and Range of Ions in Matter. SRIM includes quick calculations which produce tables of stopping powers, range and straggling distributions for any ion at any energy in any elemental target. More elaborate calculations include targets with complex multi-layer configurations.

·Ion Implantation: Ion beams are used to modify samples by injecting atoms to change the target chemical and electronic properties. The ion beam also causes damage to solid targets by atom displacement. Most of the kinetic effect s associated with the physics of this kind of interactions are found in the SRIM package.

·Sputtering: The ion beam may knock out target atoms, a process called ion sputtering. The calculation of sputtering, by any ion at any energy, is included in the SRIM package.

·Ion Transmission: Ion beams can be followed through mixed gas/solid target layers, such as occurs in ionization chambers or in energy degrader blocks used to reduce ion beam energies.

·Ion Beam Therapy: Ion beams are widely used in medical therapy, especially in radiation oncology. Typical applications are included.

Science -

The science of ion beams goes back almost a century to the earliest explanations of radioactive particles transiting thin films (1904). The field is so rich that it is difficult for a non-expert to understand any of the current papers in the field. But basically, the stopping of ions in matter can not be calculated from first principles. Hidden in stopping theories are parameters which normalize calculated stopping powers to existing data. The 'Science' section of SRIM will review the basic theories of the stopping of ions in matter. Then some of the major parameters are reviewed and it will be shown how they are derived from experimental data. Examples are shell corrections, mean ionization potentials, the effective charge of ions and the Fermi velocity of solids.

Over 2000 papers have been published in the experimental stopping of ions in solids. Experimental measurements of stopping powers is a difficult task, and there is wide variation in the results.. Plots will show how existing stopping calculations compare to experimental data from these papers. Since the stopping calculations are based in great part on theory, the interpolation of stopping powers between various ions and targets is often more accurate than individual measurements, especially for difficult targets.

Trim For Mac Os

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Although this subject is more about the effects of energetic hadrons on terrestrial electronics than about ion beams, it is scientifically in a similar field (hadrons = protons, neutrons and pions, i.e. particles which respond to the nuclear force / strong interaction). The science and technology about cosmic ray induced soft fails was considered proprietary by IBM for more than 15 years. In 1996, a complete issue of the IBM Journal of Research and Development was devoted to reviewing this work. A summary of the issue, and the complete first article (the 15 year history of the development of the IBM scientific understanding of soft fails from radiation) is given at IBM J. R.& D.

The scientific history of this field is reviewed in detail. The field is not static because the technology of integrated circuits is still rapidly changing and the effects of cosmic rays on integrated circuits (ICs) show trends which are not well understood. The trends in the sensitivity of ICs to cosmic rays are reviewed for SRAMs, DRAMs and logic over the last 15 years.

Fundamental to any estimates of the fail rate of ICs is an understanding of the ambient flux of cosmic rays in the environment. As this flux has been investigated over the last 15 years, it has become fuzzier rather than more precise. Previous measurements of the ambient flux which were considered reliable have been shown to be suspect. New measurements rarely agree with past measurements. Recent reports of the flux of sea level cosmic ray hadrons vary by more than 10x, even though they were performed by highly competent scientists. The problem will probably be resolved by understanding that the immediate materials nearby an experiment can have significant effect on the measured flux. The field of the terrestrial flux of cosmic rays will be reviewed.

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Switching out a traditional hard disk drive (HDD) for a more modern Solid State Drive (SSD) is a great way to significantly boost the performance of an older Mac.

Until recently however, there has been a problem with doing that - officially Mac OS X has not supported the important TRIM feature on any SSDs except the models built into new Macs by Apple themselves.

TRIM cleans up your SSD when files are deleted, and helps keeps things running smoothly. If TRIM is not enabled, the performance of the SSD can decrease over time.

There have been workarounds to enable TRIM on third party SSDs, however they all involved potentially compromising the security and stability of the Mac in question. Happily, Apple has begun offering an easier way to enable TRIM called trimforce, which is included in releases of OS X from Yosemite 10.10.4 onwards.

Note: these instructions only apply if your Mac has been fitted with an after market third party SSD. If your Mac came with an SSD from the start, you do not need to enable TRIM - Apple will have taken care of that for you.

Enable TRIM on Third Party SSDs

Before enabling TRIM you should ensure all the important files and applications on your Mac are backed up. Once the procedure is complete your Mac will also automatically reboot, so save any open documents before starting.

Once all your files are saved and backed up, launch the Terminal application and enter the following command:

When prompted, enter your Mac's administrator password and press enter. You'll see a message like the one below warning you about the risks of enabling TRIM, and reminding you the TRIM enabler comes with no warranty of any kind.

IMPORTANT NOTICE: This tool force-enables TRIM for all relevant attached devices, even though such devices may not have been validated for data integrity while using TRIM. Use of this tool to enable TRIM may result in unintended data loss or data corruption. It should not be used in a commercial operating environment or with important data. Before using this tool, you should back up all of your data and regularly back up data while TRIM is enabled. This tool is provided on an “as is” basis. APPLE MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THIS TOOL OR ITS USE ALONE OR IN COMBINATION WITH YOUR DEVICES, SYSTEMS, OR SERVICES. BY USING THIS TOOL TO ENABLE TRIM, YOU AGREE THAT, TO THE EXTENT PERMITTED BY APPLICABLE LAW, USE OF THE TOOL IS AT YOUR SOLE RISK AND THAT THE ENTIRE RISK AS TO SATISFACTORY QUALITY, PERFORMANCE, ACCURACY AND EFFORT IS WITH YOU.Are you sure you wish to proceed (y/N)?

Trim Apps For Mac Os X

If you're happy to proceed, type Y and press Enter. TRIM will enable, and then after a few moments a message will appear informing you your Mac needs to reboot for the changes to take effect. Type Y and press Enter again and your Mac will shutdown and restart. When it comes back up, TRIM will be enabled!

Disable TRIM

If for any reason you want to disable TRIM again, simply follow the above steps and substitute the first command you entered for this one:

Again your Mac will need to reboot for the changes to take effect, so be sure to save and backup any files beforehand.

Who needs to enable TRIM?

There has been some confusion about whether owners of modern SSDs really need to enable TRIM at all. This has mostly come about because of two factors which have resulted in the wide spread of misinformation.

Firstly, recent marketing campaigns by several SSD manufacturers have made claims that newer SSD models have the same functions that TRIM provides built into the firmware of the drives themselves, and therefore these drives do not benefit from having TRIM enabled.

Secondly, there was a bug with SSDs manufactured by certain companies (such as Samsung) which caused the drives to incorrectly delete data and wipe important files from user's systems when TRIM was enabled on Linux.

The general recommendation however, is that Mac users enabling TRIM should not experience any unwanted side effects. While newer SSDs do have more features built in to their firmware, they still do not provide a full substitute for using TRIM. There has also been no evidence to suggest that the data loss bug affects any non-Linux systems.

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