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یکشنبه, 29 فروردين 1395 07:20

آسیب های رایج مربوط به نوار تیپ مطلب ویژه

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آسیب های رایج مربوط به نوار تیپ :


عوامل متعددی در آسیب رساندن به نوارهای ابیاری قطره ای و پلی اتیلن تاثیرگذارند. تجهیزات نصب و راه اندازی، تجهیزات خاکورزی، حشرات، پرندگان، جوندگان، آسیبدیدگی از طریق اعمال فشار بیش از حد یا پدیدۀ ذره بینی نور خورشید زمانیکه به قطعات آب موجود بر روی پلاستیک شفاف بر خورد می کند از آن دسته اند. تجهیزات تزریق نوار باید به طور منظم مورد بازبینی قرار گیرند، و سیستم آبیاری قطره ای باید بطور منظم بررسی شود و در صورت مشاهدۀ گودال کوچک آب، فواره های کوچک، کم شدن فشار یا محصول مواردی که محتمل آسیب دیدگی می باشند شناسایی گردد. به محض مشاهده چنین مواردی به منظور جلوگیری از مشکلات آتی باید نسبت به کنترل و مدیریت آفات یا تنظیم تجهیزات اقدام شود. تصاویر زیر رایج ترین عوامل آسیب دیدگی تیپ را نمایان می سازد. توجه داشته باشید در سیستم SDI پدیدۀ ذره بینی نور خورشید پدیده ای نادر است چرا که معمولا نوار های آبیاری زیر خاک نصب می شوند و در معرض اشعۀ خورشید قرار ندارند. در عوض این سیستم در معرض آسیب جوندگان است.

انواع آسیبها:

آسیب نوار آبیاری ناشی از پرندگان

آسیب پرندگان

آسیب نوار آبیاری ناشی از تجهیزات آسیب نوار آبیاری ناشی از تجهیزات

آسیب ناشی از تجهیزات

آسیب نوار آبیاری ناشی از فشار

آسیب ناشی از فشار بالا

آسیب نوار آبیاری ناشی از حشرات آسیب نوار آبیاری ناشی از حشرات

آسیب ناشی از حشرات

آسیب نوار آبیاری ناشی از پدیده ذره بینی

آسیب ناشی از پدیده ذره بینی

آسیب نوار آبیاری ناشی از جوندگان آسیب نوار آبیاری ناشی از جوندگان

آسیب ناشی از جوندگان

خواندن 694870 دفعه آخرین ویرایش در سه شنبه, 22 تیر 1395 12:15
محتوای بیشتر در این بخش: « راهنمای استفاده از نوار آبیاری

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    The technology trends that will transform our world this year

    Published: 22:00 GMT, 5 January 2013 | Updated: 08:30 GMT, 8 February 2013













    View
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    OUR HOMES WILL BE APP-CONTROLLED



    Nest's app-controlled thermostat will bring app control
    to heating

    Sadly, this year will not see the arrival of camp
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    but the ‘home of the future' will be a step closer, as lighting,
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    Nest's app-controlled thermostat - designed by one of the
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    Lockitron will let us all lock and open our front doors with the click of an app...




    WE ALL STOP TEXTING



    Apps offer cheaper, more flexible ways to stay in touch

    Texting has permanently altered the English language
    over the past 20 years, dictating the 140-character length of Twitter messages, and making even sane adults fluent in gibberish.


    But the rise of apps such as WhatsApp and Facebook Messenger will see the SMS message begin a slow process of
    dying off next year, as apps offer cheaper, more flexible ways to stay in touch.





    OUR PHONES WILL BE INDESTRUCTIBLE



    Good news for everyone bar those in the phone-insurance industry - our phones could become indestructible this year.



    Samsung has repeatedly dangled the idea of flexible phone screens,
    and is widely expected to show off models at tech expo CES this week.



    Good news for everyone bar those in the phone-insurance industry - our phones could become indestructible this year



    The point is not that you can bend your phone like a Highland Toffee bar, but
    that the phone's screen won't shatter.

    An end to people talking on phones with spider-webs of
    broken glass on screen? We can but hope.



    WE ALL STOP BUYING MUSIC AND FILMS

    Cheap, subscription-based services will start to bite into pay-per-download services

    This year will mark the moment I have to stop explaining what Spotify is every time I mention it
    in public - or at least, I fervently hope so, as I tend to bore people about it
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    Cheap, subscription-based services such as Spotify (you pay £10 a month, get 17 million songs to access
    wherever you are) and Netflix (£6 a month, and you'll never need to buy a DVD
    again), will start to bite into pay-per-download services.


    And slowly but surely, the idea of actually owning music and films will begin to seem a
    rather quaint, 20th-century idea.

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  • پیوند نظر superslotmax شنبه, 29 دی 1403 12:09 ارسال شده توسط superslotmax

    It was a race against time for demolition crews bringing
    down beach-side properties ravaged by Sydney's monster storm
    a fortnight ago ahead of another expected weekend of wild weather.




    Heavy machinery moved in on Friday to pull down some of the
    battered homes at Collaroy on the northern beaches.


    Some residents could be seen scrambling to remove the
    wreckage as the skies began to darken with forecasts that Sydney, along with other parts of New South Wales
    and Queensland, are set to bear the brunt of the system.


    Scroll down form video 




    The beach-side properties ravaged by Sydney's monster storm a fortnight ago are being demolished ahead of another weekend of wild
    weather





    Heavy machinery moved into Collaroy on Friday to pull down some of the battered
    homes at Collaroy on the northern beaches ahead of a new low moving in at the weekend

    Another low is set to bring a burst of strong winds and heavy rain to the east coast that was pummelled by wild
    weather just over a week ago.

    Residents in Collaroy looked on as several of the ten multi-million dollar homes savaged by powerful waves and gale
    force winds in the storm were knocked down.

    Others were boarded up in the prospect of another lashing and had extra sandbags put in place to try
    and keep the tide back.




    Demolition work has begun on Sydney's northern beaches ahead
    of another storm with heavy machinery bringing down this balcony





    Crunch: The wreckage of several prestige homes
    was removed by heavy machinery on Friday at Collaroy





    Engineers and workmen converged on the sand to assess the walls
    protecting houses at Collaroy





    Work continued through Friday at the damaged homes at Collaroy beach with fears another savage
    storm is set to hit over the weekend





    The Beach Club was boarded up and had timber framing put in place ahead
    of paintwork on Friday





    Debris still litters the sand around badly damaged homes
    at Collaroy battered by a superstorm a fortnight ago

    Meteorologist Tom Saunders from Sky News confirmed there will be widespread
    rain over the weekend.

    'We are still expecting widespread falls of 50 to 100mm on the western side of the ranges through central/southern QLD and NSW,
    which will trigger minor flooding, particularly around central QLD,' he
    stated on his weather blog.

    'Warragamba (Dam) storage is currently 98 per cent full and with 50mm likely from this event from Saturday to Monday the dam should spill which may cause flooding along
    the Nepean River.'

    He also warned that 'another monster low is likely late next week over south-east Australia'.






    Engineers and workmen discuss the best course of action ahead of another weekend of wild
    weather





    Workers rushed to secure doors and windows at the
    back of properties already damaged 





    One balcony pictured above was hanging precariously before heavy machinery
    was brought in to remove it





    The pool at the back of 1142 Pittwater Road, Collaroy remains on its side as tractors
    continue to dig through the sand on the shoreline





    Cranes, tractors and other earth-moving equipment have been brought in over the past
    week to help with the clean-up of debris in the Collaroy sand





    Looking up from the beach the remnants of a back fence can be
    seen hanging on the rock wall

    Sydney is forecast to cop up to 70mm of rain from Saturday to Monday, according to Weatherzone. 

    While Brisbane and Canberra will get most of its downpour on Sunday with up to 40mm of rain.

    But Melbourne will remain almost untouched as less than a millimetres of rain is predicted for Saturday and Sunday. 

    Weatherzone meteorologist Brett Dutschke said the system did not look as bad as
    the one that took out chunks of Sydney's coastline on the northern beaches, with the king
    tides swallowing waterfront mansions along Collaroy. 

    It was the worst storm Sydney had seen in 40 years. 




    A rock wall beneath an apartment complex and a home at Collaroy beach -
    thousands of sandbags have been brought in to try and secure the site





    Wreckage litters the sand as another low is set to bring strong winds and rain to the east coast
    of Sydney









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    his home






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    to a midair collision



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    The pool ripped from the yard of a Collaroy home proved a lasting image of the superstorm's power





    Weather forecasters say the upcoming system did not look as bad as the one that took out chunks of Sydney's coastline, with the
    king tides swallowing waterfront mansions along Collaroy (pictured)





    Another low is set to bring a burst of strong winds and
    heavy rain to the east coast that was pummelled by wild weather just over a week
    ago. Above is a wave hitting the clifftop houses
    of Vaucluse in Sydney

    But Mr Dutschke did warn there was a chance some areas may be hit harder
    this time around.

    'There is one thing to emphasise on the negative side is that
    there is a significant flood risk given how much rain has already fallen a bit over
    the week ago,' Mr Dutschke said.







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    'Lots of dams are near capacity, some are at a good chance to
    spill over.'

    Mr Dutschke added it was not unusual for two low systems to hit in the period of late autumn and
    early winter, saying it was 'prime time'

    'In the last two years there were some periods we were getting it more frequently than that,' he said.









    more videos





    1

    2

    3










    Watch video Road rage Karen learns very painful lesson after attacking man



    Watch video Passerby stops man starting a fire in LA as arsonists are
    caught



    Watch video Insult to injury for body-slammed road rage Karen in sequel video



    Watch video Moment firefighter finds wedding ring in charred remains
    of his home






    Watch video Terrifying moment two passenger jets come close to a
    midair collision



    Watch video PM: Chancellor will be here for 'many, many years to come'



    Watch video Disgusting moment garage worker URINATES
    on driver's car



    Watch video Reeves as Rayner GIGGLE as Mel Stride blasts economic 'mess'






    Watch video Looking back at Tony Slattery's TV career: Comedian dies aged
    65



    Watch video Terrifying moment capybara attacks
    young girl bathing in a lake



    Watch video PM refuses to rule out tax rises during PMQs clash with Badenoch



    Watch video Reform councillor accused of sending 'unsolicited pictures'














    Some residents could be seen scrambling to remove the wreckage as the skies began to darken





    The warning signs are out ahead of more wild weather expected across Sydney's northern beaches





    Beach homes above the rocks at Collaroy on Sydney's northern beaches





    While Collaroy was one of the hardest hit areas (above),  Melbourne will again remain almost untouched as less than a millimetres of rain is predicted
    for Saturday and Sunday





    Melbourne will be relatively unaffected by the wild weather like last time, but 'more significant weather' will be
    felt east of the city in Gippsland and East Gippsland areas.



    But there was a silver lining to the rainfall, Mr Dutschke said.


    'On the positive side, there is some inland parts
    of western Queensland and NSW that will get worthwhile and welcome rain out of
    this and it won't get too windy,' he said.


    The recent superstorm not only brought destruction to NSW but it also brought major flooding to large areas of Tasmania,
    with Premier Will Hodgman declaring it to be the worst flood event
    in 40 years.




    The beach-side properties ravaged by Sydney's monster storm a
    fortnight ago are being demolished ahead of another weekend of wild weather

     

     

     

     





    Sydney

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