Hello everyone. ARMY's heartman, Jin.
In 2018, how should I say...
I wish happier than 2017, always happy, how should I say...
Our ARMY getting a lot of people's love...
Yes... I am stuttering,
but I hope you get a lot of hearts, everyone.
We will try to return lots of more lov to ARMY,
Alway be happy, healthy,
receive lots of flying kisses and hearts,
I hope you are always healthy and live happy.
I hope you are always healthy and happy.
Yes, 2018. ARMY everyone,
it's the Year of the Dog
For those who is in the Year of the Dog,
get more daeback (big success).
Umm.. It's...
And.. We already had a lot of interesting events in 2017,
but it will be more fun in 2018.
I feel it's going to be daebak (sucess) year.
No us, but you.
I hope you do well at all, achieve your dreams.
If you don't have a dream, You could have no dream too.
You should just be happy.
I hope you start a new year being happy,
and end the year happy in 2018.
Bye.
For more infomation >> [Eng Sub] BTS Greetings One by One for Happy New Year 2018 (Sub in Progress) - Duration: 9:36.
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Yvonne Spicer excited for first year as mayor of Framingham - Duration: 2:11.
For more infomation >> Yvonne Spicer excited for first year as mayor of Framingham - Duration: 2:11. -------------------------------------------
Diameters for belly and stinger on 2 stroke expansion chambers, tapered header pipes E10 - Duration: 7:08.
greetings two stroke fans, this is a series for those that don't know, About the
secrets of two-stroke expansion chambers. Have a look in the links at the top for
the playlist in previous videos, ok we'll get right into it,
previous video I broached on the subject of pipe diameters and how the pipe
diameters are mostly related to the gas pressures and calculating the gas
the actual gas pressures is extremely complex and there are models used and
one of the most well known by Blair and I've read through all the lines of code
and I can tell you the the pathway to actually achieving all of these
diameters but he also tested all his models against many engines and came up
with some basic empirical rule of thumb values that can be reliably used for the
different types of engines and what to expect, starting with the header pipe the
header pipe dimensions, the belly section neutral chamber diameter in relationship
to the rest and the actual diameter of the outlet in relation to the rest, now
I'll just cover briefly the header pipe and and tapered types of header pipes is
in relationship to not just the port but also the angle of angles of the diffuser
because it's not included in the diffuser timing calculations but what it
does is it aids gas expansion and the movement of the compression wave and if
we've got a lack of angle in our port or a long port we can get more expansion in
the header and likewise if we've got a steep angle here on the diffuser we can
have a higher angle here to actually smooth the effect of the way of going
over there because it can actually break down due to shock waves at the wave
front from a steep change so that aids that and the empirical value is given or
anything between one and three degrees of taper, the neutral
chamber is also in a relationship to the to the gas values again complex and I
can go through that if you like but I think for basic purposes we'll stick to
the empirical values that Blair also gave because they do come from those
models don't forget, the neutral chamber again with gas if we're working for peak
power we want a larger neutral chamber, if we're working for more broader
power we want a more narrow neutral chamber likewise with the tapers the
shallower taper gives us broader power a steeper taper gives us a higher peak so
for working for peak power or working for broad power we have a difference in
not just the tapers but also the diameters okay.
That's fairly intuitive but the one that is not as intuitive is the outlet pipe
size and the outlet pipe size, the reason I got this picture again is comes
back to the port plugging effect aside from the baffle cone reflecting the port
plugging as the exhaust port closes that also after a number of cycles the gas
builds up that pressure also has a has a port plugging effect off the power and
off the peak and outside of the timing of the of the baffle cone so we have to
be aware of that now if we've got an engine we were going for broad power and
we haven't got a high gas peak pressure then we need to back off the port
plugging a bit because if we have a strong port plugging effect and we don't
have much gas and we're trying to use shallow tapers and what not to exploit
more low end power and a broader power range our port plugin could ruin that so
in the case of the outlet pipe if we've got lower gas pressures for broader
power we have a slightly larger outlet pipe and a slightly smaller outlet pipe
to give us a stronger port plugging effect if we've got high peak gas
pressures and numbers for those given by Blair.
Header pipe that's the diameter factor so that's between the exhaust port
diameter which is exhaust port area converted into a round diameter figure,
neutral chamber ratio between the diameter, that's the multiplication
factor, broad power 0.6 times outlet 0.7 times for broader power, there are values
given for the header pipe angles by Graham Bell these are in the 90s, I was
into karting then a bit and tinkered with expansion chambers a bit then but
my biggest time the expansion chambers was in the 80s so I was working from the
Jennings formulas back then and these empirical values that Jennings gave
because he got all those from measuring pipes a lot worked so these were for road
racing bikes however because in the 80s I was road racing two stroke 350 twins,
wasn't everybody, the good ol days. So I think that will do it for today and
what I will get on to yeah so that'll do for the day I can get more
into these complex modeling but for now we'll just stick with the empirical
values so you've got those basic values and as in the previous videos if you
measure up your expansion chamber you can measure the diameters of the pipe
and you can measure the exhaust port area and then there's a conversion
factor to turn that into a diameter to work with the pipe ratio and you can
measure up the angles measure up the lengths for the timing and then you can
measure up the diameters according to these figures and you know if your pipe
diameters are within the ballpark here that's good but perhaps you know the
outlet pipe might be a little bit too small or towards large size and you want
to go the other way you know you don't want peak power you want broader power
and the outlet pipe is a little bit narrow okay if you have a narrow outlet
pipe you're gonna have too much port plugging affect down low you're gonna
knock off your knock off your your low end power
and because you've got not much gas pressure anyway for peak you know you
know the baffle effect isn't as isn't gonna work as well so yeah just a rough
guide there so you can measure your pipe and actually see how close they are and
that might point you to somewhere to being able to make modifications to it
to pep things up a little bit, okay well that will do it for today and
hopefully we'll catch you in the next video and if you have any questions by
all means hit the comment section and ask don't mind answering anything, bye
for now
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Construction Office Conversion for construction site in Opelika - Duration: 1:45.
CONSTRUCTION OFFICE CONVERSION FOR CONSTRUCTION SITE IN OPELIKA
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"Dinner for One" Der Silvester-Klassiker läuft insgesamt 15 Mal | CELEBRITIES und GOSSIP - Duration: 5:20.
For more infomation >> "Dinner for One" Der Silvester-Klassiker läuft insgesamt 15 Mal | CELEBRITIES und GOSSIP - Duration: 5:20. -------------------------------------------
LetterSchool New Year android app - learn to write the abcdefgh for toddlers - Duration: 30:52.
LetterSchool New Year android app - learn to write the abcdefgh for toddlers
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Kate Middleton VS Camilla Parker Bowles British Royals Fight For Power As Queen Elizabeth II's Re - Duration: 2:16.
kate middleton versus camilla parker-bowles
British royals fight for power as queen, elizabeth 2's retirement looms the british royals are making headlines again
As kate middleton and camilla parker-bowles are allegedly fighting for power as queen elizabeth two plans to retire
Reports claim that more power and monarchical duties are shifting in the royal palaces prince charles the heir to the throne
Prepares to become king
camilla parker-bowles
Also known as the duchess of cornwall seems to be getting the upper hand in the power struggle
Battle against the duchess of cambridge kate middleton according to celebrate laundry, since her husband prince charles is making
Some subtle moves to become england's next ruler camilla will
Soon enjoy the perks of being queen consort the latest power struggle speculations came after queen elizabeth 2 reportedly
ousted the middletons
Particularly kate middleton's mother carol in the duchess life the queen
Was allegedly tired of kate's royal revolution and constant but silent reform of protocol
despite queen elizabeth and camilla parker-bowles
Outmaneuver kate middleton showed no signs of defiance as she continued her royal duties with
Bright light appearance and forced smiles and as prince charles continues to live under the queen's demands prince william's wife
Isn't leaving anything to chance especially when it comes to her future power in fact she is reportedly befriending the duchess of cornwall
following the birth of princess charlotte
Indeed living a royal life is no joke with all the demands to abide and conform to the rules being royalty like
Kate middleton and camilla parker-bowles can lead to a, stressful kind of life
considering their power struggles to be the next queen consort
Meanwhile kate middleton is reportedly not allowing princess, charlotte to
Wear a dress until she turns one the reason the 33, year old duchess of cambridge is stocking up on nana sees because her
Daughter's royal dress code favors classic one pieces two-piece outfits people noted
Because they're a traditional family i'm sure that she'll, wear baby suits for the first
Year and then only when she's walking will she then moved into dresses kate middleton's go to children's, wear designer
Rachel, riley said as per redbook magazine
Even in terms of separates i don't think she'll be airings are brought in to much later
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The Perfect Razor for Every Day Shaving! - Duration: 0:59.
The Feather All Stainless Razor. Feather blade - perfect combination. Locks in place precisely.
Excellent for everyday shaving for men or women!
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#1 Exercise For Preventing Erectile Dysfunction & Improving Your Performance In The Bedroom - Duration: 5:44.
For more infomation >> #1 Exercise For Preventing Erectile Dysfunction & Improving Your Performance In The Bedroom - Duration: 5:44. -------------------------------------------
5 Swim Toys To Help Improve Your Technique | Swimming Tips For Beginners - Duration: 3:39.
- We all know swimming can get a bit tedious
from time to time.
Trawling up and down that black line.
- Yeah, as triathletes, we are often quite guilty
of just sticking to front crawl
and not really changing it up much,
but there's still other ways in which
you can spice up your training
and using toys is one of them.
(bright music)
You're probably wondering what on earth we're talking about,
but I'm afraid we don't actually mean
jumping in the pool with a large inflatable
and messing about.
These are actually toys and tools
that can help you improve your swimming technique.
- Now there's a wide selection of different toys
that you can get,
so we've just picked a selection
that you can add into your training
to make it a bit more interesting.
(upbeat music)
So this is quite a common pull toy
and it's called a pull buoy
and basically, you put this between your legs
and it raises your hips slightly out of the water.
- Yeah, it's great if you are a swimmer
who struggles with sinking hips.
It basically does a similar action
to what a wetsuit would do in open water,
but it also helps to single out your arms,
so you're really working just on your upper body.
You can't really use your legs when you've got that.
If you're just stuck and you can't find a pull buoy
in your local pool, then a kick-board
can work as an improvisation,
it's just a little bit less comfortable.
- So you might have heard people refer
to the pull paddle combo.
And so using a pull buoy and a set of paddles,
you're basically gonna isolate the front end of your stroke.
- Yeah, if you're using large paddles like Mark and I,
then it's very much about power, working on your strength
and if you wanna feel fast,
you can just take the pull buoy out,
keep the paddles on, and use your legs
and it'll give you a great feel of the water.
But if you wanna work more on technique,
there are actually other paddles available on the market.
Slightly smaller ones that'll just really
reiterate getting that perfect stroke.
Now I know we've already mentioned the kick-board,
but as its name says, it's specifically designed for kick.
If you're got a board like this,
you can just place your fingers through the holes
and the whole idea is to be comfortable and relaxed,
resting your forearms on top
so you can concentrate purely on your kick.
- And you don't have to bury
your face into the water either.
Keep your head up so that you can breaths,
most importantly, and then it's social as well,
you can chat to the person next to ya.
But really you're doing it
so you can isolate your leg kick.
- Now another toy, slightly less usual is the snorkel
and if you look closely, you'll notice
that it's different to the snorkel you'd use on holiday.
This one goes down the centre of your face.
So you can concentrate on keeping your head
completely still when you're swimming.
Now a lot of swimmers struggle with the breathing.
It's the movement of the head that upsets the stroke.
But if you've got this, you can breathe
as much as you want and consistently
and then you're purely focusing
on what your arm and legs are doing.
- As you can see, I've got a set of fins on.
And what fins do is basically gonna propel
you out of the water slightly
and make you travel a lot quicker.
And it also improves your ankle flexibility
and I guess it's similar, it's a bit like
an outboard motor does on a boat.
And it's the closest you're gonna come
to feeling like Michael Phelps.
(upbeat music)
- Now we covered five toys in this video
and it might be a little bit daunting.
So if you wanna try before you buy,
quite a few pools will have a pull buoy
or a kick-board at least that you can borrow first.
- Yeah, so you don't have to get all those,
maybe just select a couple that are gonna help you
on some of the areas of the swim stroke
that you're focusing on.
If you like this video, give it a thumbs up.
To subscribe to GTM, click on the globe.
And to see an open water swim video, click here.
- And if you want to see a video
on essential swim workouts, then click down here.
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