Analysis of the Impact of Appropriately Dimming Lighting on Our Life

Nowadays, words such as "people-centered lighting", "day and night lighting" and "biological lighting" often appear in newspapers. In fact, no matter which word it is, it is nothing more than saying that properly dimming lighting can create ideal conditions for human beings within 24 hours.

Moreover, no light source can be "adjustable" like LED, and the light source can be provided according to specific color temperature, spectral power, color and brightness. In short, people-centered lighting can stimulate people's excitement in the morning and afternoon, and relax them in the evening. It can be tuned to the same level as the sun, strengthening the rhythm of sunrise and sunset for millions of years and 24-hour circadian rhythm.

If designers can integrate as much natural lighting as possible into the LED color palette, it will have a great impact. We all know that stimulation and alertness can improve learning and efficiency, and relaxation can help sleep. On the contrary, the wrong time and wrong light may destroy these things. Some researchers believe that it will help to produce cancer, diabetes and other diseases.

Dimmable, human centered lighting (HCl) can be applied to any place, such as schools, offices, hospitals, families, etc.

Human centered lighting (HCl) is the most effective in hospitals. Adjusting the led to stimulate the blue frequency at some time of the day and warm light at other times can help patients sleep and recover. In the office, a well-designed lighting system can improve morale and productivity.

Correct day and night light helps to get enough sleep and spirit

Mariana figueiro, director of the lighting research center (LRC) of Rensselaer Institute of technology, has always believed that in the office, the correct day and night light can help employees sleep better at night and help them cheer up.

Rensselaer Institute of technology conducted a three-year study in five different buildings of the United States General Services Administration (GSA), and then issued a report with the GSA, saying: "office staff receive sufficient effective light or sunlight in the morning, sleep better, depression and stress lower than those in dim or low light."

The 109 participants in the study wore an electronic pendant designed by LRC to measure light intake, with LRC's measurement standard "CS", ranging from 0.1 to 0.7. 0.7 represents the highest point of natural sunlight.

Figueiro and members found that employees exposed to CS of at least 0.3 in the morning "can sleep faster and have better sleep quality than employees with CS of 0.15 or less." participants wore this electronic pendant for 7 consecutive days in winter and summer. The results showed that when CS was 0.3 or higher, the sleep effect was better in winter and the same in summer. Decompression advantages are also consistent.

The study is only preliminary

Figuero said: "I'm not surprised by the result, which is what we expect. The light during the day is very important, and there are a lot of light at night, such as the low light at night and the light on the mobile phone display, but we spend 80% - 90% of our time indoors and two-thirds of our time in the office. People don't notice the importance of office lighting, which can help you sleep at night Better. "

Figuero said that this study is only the "first stage", and her study has three stages. It is worth noting that the first stage does not involve dimming. On the contrary, it only measures the light obtained by participants from existing light sources, including natural light, traditional fluorescent lamps, and even led light sources.

In the summer and autumn of 2016, the "second phase" was carried out in two different places. LRC installed LED panel lights behind the employee's computer screen and directed them at about 40 participants.

Figure 1. LRC installed an LED source in the study and adjusted the light to 0.3 CS to improve the excitement. Participants said they felt more awake and energetic. (photo source: LRC lighting research center)

LED dimming has great potential

But sunlight is still the best light source

In the first stage, LRC scientists measured the effects of light on nocturnal sleep, stress and depression. Scientists also recorded the stimulation effect. At that time, it was assumed that when CS was 0.3, light would stimulate the eyes and cause happiness, because when light irradiated the non visual receptors (iprgcs) of the retina, it would stimulate pigments called melanopsin.

The results of the second stage were: "through the intervention, we found that the subjects reported that they would be more sleepless and energetic", "We collected data in winter, and we found that adding a light that can provide CS 0.3 will increase their subjective feeling, reduce drowsiness and increase energy and vitality."

The third stage aims to further prove the potential effectiveness of LED dimming for circadian alternation. Figuero believes that healthy lighting should be transmitted in "layers", in which ambient lighting can come from ceiling lamps, and the light of circadian rhythm can come from low lux blue frequency that directly irradiates the eyes. Although the light directly irradiates the eyes sounds like a "Arabian Nights", but figueiro pointed out that under the low light level of 30 LX, blue light will still improve the excitement, but will not cause annoying glare. She said: "if you do 470nm, you only need 30 LX, so people feel it very comfortable." you won't even see so much, because you have ambient light, and blue light has been integrated into it. "

Although led adjustability has great potential, figueiro also knows that office designers must "embrace" the sun.

"One thing we learned is that the lighting design must be more perfect to provide the periodic stimulation we need. Sunlight is the best stimulus, but it does not always enter the environment in the way it should," figueiro said

The Scottish registry office uses dimmable LEDs

If you don't have natural light in the office all day, you can try adjustable led.

Figure 2. Casambi provides Bluetooth to control day and night lighting in different ways, such as through wall devices, or through smartphones, tablets and other applications that provide a wider color temperature range. These devices do not need a gateway. (image source: casambi)

Timo pakkala, CEO of casambi, said: "the most important thing is color temperature control. When people talk about people-centered lighting, it is color temperature control. It is happening now, but it is still in its early stage. We need not only new light sources, but also new controls."

Although casambi's control devices are installed in thousands of locations in many countries, no more than 10% of these devices use adjustable CCT. However, this percentage is growing, and the most suitable location is a new building.

One of them is the 12 storey St. Vincent's Square building in downtown Glasgow. When the registers of Scotland took over the third floor, it adopted the HCl concept and casambi system to control 300 LED lights of about 17300 square feet (about 1600 square meters).

The registers of Scotland divides the LED ceiling lights into 8 groups, with an open plan layout and 12 meeting rooms. Kevin Stewart, the floor manager, said that each group and room has its own iPad controller, which is installed in the open part to change the brightness and color temperature. (Figure 3)

Figure 3. Adjustable lighting in the Scottish registry is managed by casambi's iPad control mounted on the wall. (image source: casambi)

According to Stephen Jackson, casambi's UK and Ireland business manager, these lights are pre programmed and can change the color temperature all day. In addition, iPad control can change the background. Although the agency is indeed considering brightness, so far, there has not been much adjustment in the color temperature setting.

Therefore, for ordinary people in the office, even if the level changes skillfully, the CCT will generally remain Gray all day. The tea room in the office can be set to a more relaxed amber tone, while the conference room can be switched to a colder CCT.

The agency even installed some Philips "show" lighting that can change the color, but it has not been used yet.

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What Are the Effects on Hearing of in Ear Headphones?
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Philips Lost the Patent Infringement Lawsuit
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Hair Loss Causes & Solution
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I Need to Start a Mock Business for My Economics Class . How Do I Start?
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Why Does Music Sound Bad When Played Backwards?
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Swimming at the 2012 Summer Paralympics  Men's 200 Metre Individual Medley SM8
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Do You Think Long Hair Will Be Fashionable for Men Again?
Do You Think Long Hair Will Be Fashionable for Men Again?
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China Has Successfully Manufactured the First 3D Printed Specimen of Nuclear Reactor Pressure Vessel
China Has Successfully Manufactured the First 3D Printed Specimen of Nuclear Reactor Pressure Vessel
Recently, China has made new significant progress in the application of 3D printing technology in the field of nuclear energy - China Nuclear Power Research and Design Institute, in cooperation with Nanfang Additive Technology Co., Ltd., has successfully manufactured the cylinder test piece of acp100 reactor pressure vessel through the self-developed electrofusion additive manufacturing (3D printing) technology for heavy metal components.It is understood that the 3D printed specimen weighs 400kg, and after testing, its material chemical composition and basic mechanical properties meet the requirements of international nuclear power code RCC-M and ASME. The successful 3D printing of the pressure vessel specimen marks a solid step forward in the overall goal of cooperative two-way small reactor pressure vessel additive manufacturing and product application.Acp100 is a multi-purpose modular small reactor independently developed by CNNC. It can not only be used for power generation, but also be comprehensively utilized, such as heating, seawater desalination, refrigeration, industrial heat, providing energy for offshore platforms and power for ice breakers. At present, acp100 modular small reactor has completed all scientific research, become the world's first small reactor technology that has passed the general reactor safety review (grsr) of the International Atomic Energy Agency, and has the conditions for project implementation.The combination of emerging manufacturing technology and new nuclear power reactor type will bring revolutionary changes to the traditional design and manufacturing in the future. The successful printing of acp100 pressure vessel cylinder specimen is of positive significance to the engineering application of Heavy Metal 3D printing manufacturing in the field of nuclear power. It can be predicted that the application of this technology in the field of nuclear power will greatly shorten the equipment manufacturing cycle, reduce the equipment cost, improve the equipment quality and the safety of reactor equipment, and provide important technical support for the improvement of nuclear power equipment design and manufacturing capacity, the concept of "made in China 2025" and the implementation of nuclear power "going global" strategy.
Can I Shorten Windows Explorer Thumbnail Display of File Paths?
Can I Shorten Windows Explorer Thumbnail Display of File Paths?
Another approach to shortening names to create a directory link, so the folderC:UsersMyUserNameDocuments will have the alternate name of C:short.I have not tested how it works in the problem cases, but it should performbetter since it is still inside the same disk.I think you cannot create a directory link in the root folder C:, so youmight need to create a short sub-folder name, even one letter, such as C:dand create the link inside it.The Windows command to use ismklink,which has two variants:Soft link pointing to a directory:Hard link pointing to a directory, also known as a directory junction:For more information about links, see for example the articleThe Complete Guide to Creating Symbolic Links (aka Symlinks) on Windows.• Suggested ReadingUsing Alt Keycode for accents?First hold CtrlShift, then tap U and let go.An underlined "u" will appear, to which you can append a combination of characters. Hit enter after that and the new character will appear.For instance, if I hold CtrlShift and hit U, type e9, then hit enter, an appears. If I hit e8 instead, an does instead.You can find the correct combinations using the Character Map program in Accessories. The first "0" or two that you find on certain entries can be dropped (e.g. a is listed as 00E7, but you only need to type the e7).It's a bit odd coming from using the Alt method in Windows, but you'll acclimate quickly.N.B.: If you need to frequently type many types of accented characters see Adam Byrtek's answer below for a nice method that, while it requires some setting up, can save a lot of time in the long run.------Launch a GUI Tkinter program on bootYes it is possible to launch Tkinter Python program to the Pi console. What you have tried should have worked. However, if python /home/pi/ has a end, a window will appear and run the program to the end and then close the window before the system completes the boot. A good test would be to have a lxterminal and execute the command python /home/pi/ launches command window no gui. Did that work? if yes, that is good. Next exec lxterminal -e 'python /home/pi/ launches command window no gui'. If the new lxterminal stay open, it should also work on boot up.A GUI EXAMPLE:You have to keep the window open as in "mywindow.mainloop()" or some other way. Note, as I put the program in /home/pi/bin a boot is requited after creating the bin directory------How to use BCDEdit to dual boot Windows installations?You need a BCDEdit /set command for configure the boot volume. Then add the entry to the Windows Boot Manager operating system menu by calling the BCDEdit /displayorder command. It will identify the other OS' partition or the following command as wellThe following line makes the entry bootable by adding it to the menu You can verify that the new entry will appear on the boot menu by running the command bcdedit /enum ACTIVE and looking for the Windows Legacy OS Loader entry.Note: /create command is used to add non-Microsoft OS to boot loader entry.For more information regarding this you can read this source articleRegarding your question about "Difference between Windows Boot loader and Boot manager"From wikipediaSee also on technet.Visual BCD Editor is an advanced GUI version of Windows bcdedit utility.Download page for visual BCD editor.Give a try to repair option in the tool.------Windows Vista and 7 crossrealm authentication MIT KerberosThe following two links have some detailed information on the SupportedEncryptionTypes configuration for Kerberos: general, you need to have common algorithm between the KDC and your Windows machines. If you are running more recent version of MIT Kerberos, you should have AES support, but if your KDC is older one, you would need to use DES to interop. @tommed is correct that DES is disabled by default in Win7, but it should work fine on Vista. Alternatively, capture the network traffic between the KDC and your client machine and look at what the client is offering and look at the KDC config to ensure you have at least one of the crypto algorithms in common.------Slow SQL Server authentication, but fast SAN, fast querying?Here is your answer:If MSDB is on c: master is on c: as well and I'm almost willing to bet that tempdb is still in the default location as the average I/O stall on c is 19 seconds!First, check if tempdb is on c: or has any file on the c: partition and if so move it awayCheck if the master database has some free space - Usually you dont need to tune it as very little is written to the master database, unless if someone has created objects in itThen make space in the MSDB database is way to big which can cause a lot of troubles, please remove as much backup and job history from it database as you can. You can do all these checks very simply by downloading and running sp_blitz------Is Windows 10 backup safe from ransomware?Generally speaking, most ransomware tries to encrypt both the main drive, as well as any attached drives (USB, network shares, etc). My bet is if it could find your backup files, they would be encrypted as well (had someone get an early version of Cryptolocker and encrypted all the network shares). Backups (with a defined backup policy) saved us from paying out.This is why either an offline backup (i.e. external HDD not permanently attached) or a cloud backup is so important. Something that cannot be immediately accessed should your computer be compromised.I should note that Windows (all versions going back to XP) uses its own proprietary incremental backup system. It builds a backup file and then increments the data with each subsequent backup. This is more than sufficient to keep your data safe (provided you have an offline drive)------Easy way to type accented charactersAs joulsauron said in his answer Stack Exchange cannot do anything for this. This problem has to be dealt on your own PC. That can be done by changing the keyboard layout. I will post ways to change the keyboard layout on different OS. Click on System -> Preferences -> Keyboard Then click on the Layouts tab and then click on Add A new window will open. Click on the By Language tab. Select language as "Spanish, Castillian" and select whichever variant suits you best (By the way I chose Spain in the variant). PS for quick changing between layouts there is a shortcut keypress Shift Caps LockORYou will also get an icon on your taskbar, use it to change quickly. See this article on Refer to this article on Official Microsoft Website------Why are my backups using so much space? ORA-19804I've managed to make the error go away, for now at least. I'm putting the conclusion here as a community wiki answer since it leaves some things unexplained.After bypassing rman and deleting the oldest files manually, it was necessary to:which convinced rman that it had enough free space to start working again. A level 0 backup completed successfully after that cleanup, and a level 1 backup completed successfully the next morning.A notable feature of this solution is that this:still says that it is using the 31 day window, and doesn't list any files needing to be backed up. The way I figure it, that means the files that were deleted were in fact obsolete.control_file_record_keep_time has also been updated to 39, following the recommended formula. Hopefully, this was the root cause of the problem, and automatic deletion will work from now on------Is there a high end expensive photo transfer cable for my Olympus E-520 DSLR to PC?Camera makers seem to have been among the last electronics manufacturers to completely adopt standard USB cables.Olympus point-and-shoots in particular took a long time to come around to standard USB cables. The camera-end of the cable has a proprietary connector, which is also used for non-USB connections such as wired remote shutter release, A/V breakout, etc.I have seen the cable your camera uses referred to as "CB-USB6". I don't believe that's an industry-standard name, and I don't know if that's how Olympus refers to the cable. But searching for "Olympus E-520 replacement USB cable" returns several product links with the same cable:Note the camera-end connector: it is not a standard USB A/mini-A/micro-A or B/mini-B/micro-B connector.As far as "high-end expensive USB 2.0 cable", I'm not sure what you mean there. Being non-standard, this cable is what it is------Creating email alert from object with email as From email addressI don't believe you'll be able to use a custom field as your from address for e-mail alerts. You can't even use the standard e-mail field on a contact as the from address for an alert. However, you can create a trigger to send e-mails when a new contact us record is created. The documentation for sending e-mails via Apex Code is here: Outbound Email docsHere's an example trigger:Another suggestion would be to use e-mail alerts but instead of having the e-mail come from the person who filled out the contact us form, add a mailto: link in the message that the responder can click on that will open a new e-mail window with the e-mail address and subject pre-populated. For example: ">Respond to this contact request.------Windows 8 shortcut keys for Modern UI (tiled) AppsJust create a shortcut in your desktop and assign a Hotkey:For example: This is for People app1. Create a new shortcut in your desktop: using the following formatApp's URL Protocol name? read about it at the end2. Open its properties dialog and setup the hotkeys you want to useAnd that's it, now you can launch your Windows 8 applications with that hotkeyApp's URL ProtocolSome applications have their own URL protocol to open its supported files, something similar to or mailto:And you will find those names in windows registry : HKEY_CURRENT_USERSoftwareClassesThere you will find some of your applications (not all of them), just look for the ones with default value like this one:Another hint is that they also have a string value called URL ProtocolHopefully, you will find your desired-application's URL Protocol name. Good luck!------Open ebooks in Ubuntu 12.04Install Calibre. It's an eBook Management program. It has dozens of plugins and features to cover pretty much any possible ebook related need, including Robust Conversion tools, as well as an eBook Extractor/Modifier. Just import a book into Calibre and then right-click on it and select "Tweak Book".The "Tweak Book" feature might only support EPUBs but you can just convert most other formats into your desired format using Calibre's Conversion tools.EDIT: As of version 1.15 of Calibre, The old "Tweak Book" feature(extracting the book and presenting a folder to edit) has been replaced by a full on EPUB/AZW ebook editor. If you still wish to simply extract EPUBs into their respective parts, simply rename the EPUB file to "" and open them using a standard File Archive program like "File Roller" in Ubuntu.
Non Woven Bag Printing Machine Supplier
Non Woven Bag Printing Machine Supplier
Web Offset Printing Machine Manufacturer:At Rotta Print, we manufacture world-class, cost-efficient web offset printing machine, Multi Color Non Woven Bag Printing Machine, Non woven bag making machine, two color non woven bag printing machine, Non woven bag printing machine, newspaper printing machines, book printing machine, 4 hi tower machine, Mini Offset printing machine.We have the endless range of machines and all are available with modular options for versatility and competitive production. We focused on quality because it is our top most responsibility for the satisfaction of our clients. We will never give you the chance to complain in the near future.Mini Offset Printing Machine Supplier and Manufacturer:The Rotta Print India Pvt. Ltd. Company is located in Faridabad, India, offering a wide range of Mini Offset Printing Machine. The offered range is produced by using premium quality raw material and advance technology under the guidance of expert professionals. In addition, all the products are checked under various parameters to ensure the quality and durability. Our company is providing the range of Mini Offset Printing Machine at market leading price.Non Woven Bag Making Machine and Non Woven Bag Printing Machine:A high quality Non Woven Bag Making Machine is developed for making various types of bags.We generally stay two stages ahead in our industry by getting most recent innovation the Non Woven Bag Making Machine and Non Woven Bag Printing machines. Because of our maintained endeavors towards magnificence in offering help, services and qualities of authority, we have built up our deals and administration arrange all through India.As we are the progressive Non Woven Bag Making Machine manufacturer in India, so, we always think on feet, which enable us to meet the developing needs of the customers and high industry benchmarks too. We have the endless range of machines and all are available with modular options for versatility and competitive production. We focused on quality because it is our top most responsibility for the satisfaction of our clients. We will never give you the chance to complain in the near future.Multi Color Non Woven Bag Printing Machine:Multi Color Non Woven Bag Printing Machine is progressive product; this machine can print multi color bags in exceptionally monetary cost. Presently, no compelling reason to spend intemperate cash on four color printing machine when you can get better quality of printing in just three color machine.Rotta Print India has developed next generation Multi Color Non Woven Bag Printing Machine (Non woven D-cut bag Printing Machines) to offer high quality print results on Non Woven Cloth bags.Multi Color Non Woven Bag Print Machine - then we recommends you please visit Rotta Print India can find all kinds of Bags printing machines·RELATED QUESTIONWhy do American men wear class rings, but won't use their postnominal degrees on door signs and business cards?American women wear class rings, too. I wear mine.Generally speaking, displaying where you got your degree from on a business card or a door sign would be seen as odd, at best. If somebody handed me a business card with the Harvard logo on it and he didn't work at Harvard, I'd probably ask about it: "Oh, do you do work with Harvard University?" and if the answer was, "No, I just attended" I'd find this an unpleasant level of showing off. Not classy.A lot of Americans will have college-related paraphernalia in their offices, though. Like, you may see a pennant or they may have their degree(s) up on the wall. This is a more casual display of affiliation.Likewise, the ring is casual. Class rings are usually not that obtrusive, particularly the signet variety.Usually, the signet is only immediately recognized by others who attended the university (though I have had people ask me to hand over my ring so they could take a closer look at it before), and thus it kind of acts like a secret handshake. I've had people from my college recognize my signet ring on sight, and then we have an instant connection.It's just a lot classier than shoving it in everybody's face all the time in an American social environment, basically.
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