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What causes the depletion region? - Electronics - Others

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Diffusion

Posted on Jan 15, 2013

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Posted on Jan 02, 2017

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What could be the cause of f2-02 in sharp copier ar5127


You need to first check the toner cartridge to make sure its ok (May be bad). The other problem can be the developer being depleted causing the sensor not to detect the proper density whcih is one cause of the errur code.
Printer Repair Service in Miami and Fort Lauderdale FL

May 20, 2016 | Sharp Office Equipment & Supplies

1 Answer

Can a loose harmonic balancer cause a car to stall?


It could if it shredded your belt for the alternator causing the car stall after the battery depleted.

Jan 09, 2012 | Cars & Trucks

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Color ink attention on my HP deskjet F2235(All-in-one) what may be the cause?


Hi,

That attention mark is a reminder that the ink is in low level or it is already depleted (empty).
If you do have the hp solution center installed on your computer, try to check the Estimated ink levels or please print a self-test page.

To do that,

- press the setup button, (wrench like icon)
- press the down arrow, look for PRINT REPORT and press ok to select.
- now, press the down arrow to highlight SELF-TEST REPORT and press OK for it to be printed.

Check if there are any depleted cartridges.

Cheers!

Jun 21, 2011 | HP Deskjet F2210 InkJet Printer

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My battery depleted and now my player won't charge. I've tried inserting something to press the Reset button next to the charging cables but nothing works...


hi...since you have a depleted battery why not try to replace w/ a new one your old battery seems to torn out...it does not charge or stored power anymore and will automatically runs out of charged when you turn ON your player..continue using this will cause you more trouble esp. when the batt. shorted it's terminals....good day

Feb 15, 2011 | Creative Labs ZEN SLEEK MP3 Player

1 Answer

1.why do u think ecology is important? 2.think of some environmental issues their causes and solutions......


Why Ecology is important ?
Ans : Ecology is of utmost importance to all species including us. We, like all other animals depend on this earth for everything; food, water, shelter. Everything on this earth depends on something else but ecology is so dynamic that even the smallest perturbation can upset everything.
A good example is global warming. Many people think that 2 degrees over a decades is a small amount of time. NOTHING in Ecology is small, the repercussions are severe. Plants need a certain temperature to thrive, warming of the earth can upset this and also upset life and mating cycles. We depend on those animals to eat and certain animals also survive on those animals.
In addition, human interference with the ecology of certain places can also exacerbate the problem of natural disasters. When we log on mountainsides and hills, we destabilize soils and the topology of the landscape. Heavy rains which would originally cause some kind of erosion would now cause landslides that could engulf roads and cause hazards to villages or towns and people that live in those areas.
In addition, chapparal forests in California is a type of terrestrial biome. If we do not understand the fact that these trees will constantly be subjected to fires, then people will build luxurious houses in these areas (which they are already doing), and when wildfires rage through the area, they will want insurance and money to rebuild. The fact is, houses are not supposed to be built in those areas in the first place, and if they are, insurance companies should not be shelling out money to the rich and misinformed who choose to live in such a biome.
So you see, Ecology is important to us financially, aesthetically, and also for our simple survival on this planet. Hence, it should be taken with utmost importance not only for us but for our next generation.
Some environmental issues are :
1. Land degradation
Land degradation is a concept in which the value of the biophysical environment is affected by one or more combination of human-induced processes acting upon the land.[1] It is viewed as any change or disturbance to the land perceived to be deleterious or undesirable.[2] Natural hazards are excluded as a cause, however human activities can indirectly affect phenomena such as floods and bushfires.
Causes
Land degradation is a global problem, largely related to agricultural use. The major causes include:
-Land clearance, such as clearcutting and deforestation
-Agricultural depletion of soil nutrients through poor farming practices
-Livestock including overgrazing
-Inappropriate Irrigation [4] and overdrafting
-Urban sprawl and commercial development
-Land pollution including industrial waste
-Vehicle off-roading
-Quarrying of stone, sand, ore and minerals
Effects
e main outcome of land degradation is a substantial reduction in the productivity of the land.[5] The major stresses on vulnerable land include:
Accelerated soil erosion by wind and water
-Soil acidification and the formation of acid sulfate soil resulting in barren soil
-Soil alkalinisation owing to irrigation with water containing sodium bicarbonate leading to poor soil structure and reduced crop yields
-Soil salination in irrigated land requiring soil salinity control to reclaim the land [6]
-Soil waterlogging in irrigated land which calls for some form of subsurface land drainage to remediate the negative effects [6]
-Destruction of soil structure including loss of organic matter

2. Ozone depletion
Ozone depletion describes two distinct, but related observations: a slow, steady decline of about 4% per decade in the total volume of ozone in Earth's stratosphere (the ozone layer) since the late 1970s, and a much larger, but seasonal, decrease in stratospheric ozone over Earth's polar regions during the same period. The latter phenomenon is commonly referred to as the ozone hole. In addition to this well-known stratospheric ozone depletion, there are also tropospheric ozone depletion events, which occur near the surface in polar regions during spring.

The detailed mechanism by which the polar ozone holes form is different from that for the mid-latitude thinning, but the most important process in both trends is catalytic destruction of ozone by atomic chlorine and bromine.[1] The main source of these halogen atoms in the stratosphere is photodissociation of chlorofluorocarbon (CFC) compounds, commonly called freons, and of bromofluorocarbon compounds known as halons. These compounds are transported into the stratosphere after being emitted at the surface.[2] Both ozone depletion mechanisms strengthened as emissions of CFCs and halons increased.
CFCs and other contributory substances are commonly referred to as ozone-depleting substances (ODS). Since the ozone layer prevents most harmful UVB wavelengths (270-315 nm) of ultraviolet light (UV light) from passing through the Earth's atmosphere, observed and projected decreases in ozone have generated worldwide concern leading to adoption of the Montreal Protocol that bans the production of CFCs and halons as well as related ozone depleting chemicals such as carbon tetrachloride and trichloroethane. It is suspected that a variety of biological consequences such as increases in skin cancer, cataracts,[3] damage to plants, and reduction of plankton populations in the ocean's photic zone may result from the increased UV exposure due to ozone depletion.
The ozone hole and its causes
The Antarctic ozone hole is an area of the Antarctic stratosphere in which the recent ozone levels have dropped to as low as 33% of their pre-1975 values. The ozone hole occurs during the Antarctic spring, from September to early December, as strong westerly winds start to circulate around the continent and create an atmospheric container. Within this polar vortex, over 50% of the lower stratospheric ozone is destroyed during the Antarctic spring.[14]
As explained above, the primary cause of ozone depletion is the presence of chlorine-containing source gases (primarily CFCs and related halocarbons). In the presence of UV light, these gases dissociate, releasing chlorine atoms, which then go on to catalyze ozone destruction. The Cl-catalyzed ozone depletion can take place in the gas phase, but it is dramatically enhanced in the presence of polar stratospheric clouds (PSCs).[15]
These polar stratospheric clouds(PSC) form during winter, in the extreme cold. Polar winters are dark, consisting of 3 months without solar radiation (sunlight). The lack of sunlight contributes to a decrease in temperature and the polar vortex traps and chills air. Temperatures hover around or below -80 °C. These low temperatures form cloud particles. There are three types of PSC clouds; nitric acid trihydrate clouds, slowly cooling water-ice clouds, and rapid cooling water-ice(nacerous) clouds; that provide surfaces for chemical reactions that lead to ozone destruction.[16]
The photochemical processes involved are complex but well understood. The key observation is that, ordinarily, most of the chlorine in the stratosphere resides in stable "reservoir" compounds, primarily hydrochloric acid (HCl) and chlorine nitrate (ClONO2). During the Antarctic winter and spring, however, reactions on the surface of the polar stratospheric cloud particles convert these "reservoir" compounds into reactive free radicals (Cl and ClO). The clouds can also remove NO2 from the atmosphere by converting it to nitric acid, which prevents the newly formed ClO from being converted back into ClONO2.
The role of sunlight in ozone depletion is the reason why the Antarctic ozone depletion is greatest during spring. During winter, even though PSCs are at their most abundant, there is no light over the pole to drive the chemical reactions. During the spring, however, the sun comes out, providing energy to drive photochemical reactions, and melt the polar stratospheric clouds, releasing the trapped compounds. Warming temperatures near the end of spring break up the vortex around mid-December. As warm, ozone-rich air flows in from lower latitudes, the PSCs are destroyed, the ozone depletion process shuts down, and the ozone hole closes.[17]
Most of the ozone that is destroyed is in the lower stratosphere, in contrast to the much smaller ozone depletion through homogeneous gas phase reactions, which occurs primarily in the upper stratosphere.[18]

Nov 08, 2010 | Computers & Internet

1 Answer

Will not play dvds


  • make sure to use lens cleaner to ensure DVD player is free of dust and dirt on laser lens
  • another cause would be that your DVD player is no multi-region or not region free, because many DVDs have region settings. in order to make your philips DVD player region free (can play all region DVDs) check link below:
  • http://www.regionfreedvd.net/player/philips.html

Oct 02, 2010 | Philips Televison & Video

1 Answer

Does anyopne know how to unlock region to play all regions? It's locked on region 4 & the majority of my DVD's are region 1. Any help would be appreciated


You can try installing third-party firmware on your laptop's DVD drive that disables its region locking. Such firmware is available online, but if you don't know what you're doing, this brings the very real possibility of causing serious damage to your machine, and it will almost certainly void your warranty.

May 29, 2010 | Panasonic Televison & Video

1 Answer

Nokia 5800 won't recharge


batteries are sometimes faulty from day 1 .
your battery may be a lemon and will need to be replaced .
trying to recharge it may cause phone damages .
My advise to you is to buy a new one .

Sep 28, 2009 | Nokia 5800 XpressMusic Smartphone

1 Answer

Hp dvd player


This problem can often be caused by the DVD player software thinking it is in a region different than your discs. (DVD discs are often encoded with 'region codes' meaning a disc purchased in Asia will not work in a player expecting to see North American discs)

What can happen is the player 'forgets' where it is, and your regioned discs won't play any longer (region free discs should continue to work as will audio CDs ....)

A power surge, random cosmic ray or similar flakiness can cause a player to 'forget' what region it was designed for ....

If that is what has happened you need to 'reset' the region code.

Altho I can diagnose this, I have NO CLUE as to how to do this with a hp DVD player. Anyone out there know how to reset the region codes for this (or generically for a DVD player?)

Thanks!! //cheapz

Nov 15, 2007 | Televison & Video

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