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Topics - asitrony

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106
Humanities & Social Science / Acrylic fibres
« on: July 22, 2015, 12:56:39 PM »
It  is  a  manufactured  synthetic  fibre  in  which  the  fibre  forming  substance  is  a  very  long  chain  synthetic polymer composed of at least 85% acrylonitrile units by weight.

Chemical properties:


Effect of acids  : Damage by strong concentrated acids.Good resistance to mineral
acids.
Alkali  : Resistance to weak alkali but affected by strong alkali.
 
Solvents
Bleaches
 
: Resistance to common solvents.
: Resistance bleaches.
 
Heat  : Most heat sensitive.
Light  : Resistance not for long time.
Dye    : Acid, basic, cationic.
Conductivity: Fair for electrical, medium for lie.



Features of Acrylic fibre:
Appearance  :   The acrylic fibre appear as regular
translucent slightly wavy filaments or   staple fibre.
 
Diameter
 
: 15 µm to 25 µm.
 
Color                : Dull.





Uses of Acrylic:


All acrylic fibres used in knitted and woven fabrics. 
Blends of acrylic fibres with wool, cotton etc. is prevalent on the market.
Bulky, soft and light fabrics are produced from acrylic.
End uses such as blankets, carpets and upholstery are excellent for acrylic.
Acrylic fibres are popular in sportswear, ski cloths; children snow suits and sports shirts.
Used in industrial applications like filter cloth, protective cloth etc.
Especially use of acrylics is wigs.

Thanks
Asit Ghosh
Senior Lecturer, TE

107
Allied Health Science / 7 Best Drinks That Shrink Belly Fat
« on: July 22, 2015, 12:53:28 PM »
Tasneem Bhatia, M.D. a specialist in holistic and integrative medicine, shares how he helps his patients lose belly fat with drinks crafted from traditional herbs in the Ayurvedic principle.

“Doctor, why can’t I lose weight?”

Many of the patients I see in my practice ask the same thing: They have tried exercise, they have tried cutting calories—they’ve tried just about everything that Western medicine has to offer, and yet the weight just doesn’t come off.

But what most people — even most Western doctors — fail to understand is that weight loss doesn’t just come from balancing your calories. It comes from balancing your body, an essential aspect of Ayurveda, the centuries-old Indian medical practice that’s based around proper nutrition.

Ayurvedic medicine sees the body as a series of systems, called doshas; keeping these systems in balance through proper nutrition prevents inflammation, the source of most of our illnesses, including weight gain. To combat belly fat, I often prescribe for my patients one of these simple, delicious drinks made of traditional herbs, which help to soothe the digestive system and stimulate weight loss. Try one or more of these traditional healing drinks, and watch how quickly your own belly can go from nasty to Namaste.

Thanks
Asit Ghosh
Senior Lecturer, TE

108
Allied Health Science / Why You Can’t Do a Pull-Up
« on: July 14, 2015, 11:26:51 AM »
Why You Can’t Do a Pull-Up

Men's Journal
July 13, 2015
Why You Can’t Do a Pull-Up?


Despite being strong, some people can’t figure out how to do a pull-up/

The Problem:

Pull-ups are one of those ubiquitous tests of strength, but a move that can humble even the toughest of men. Most who are unable to do this particular feat think the answer lies in more weights. And while your lats, biceps, and traps are doing work during this move, the real answer lies in your serratus anterior (SA), the muscle that holds your shoulder blade against your rib cage. If your SA isn’t working correctly, you are setting up the other 17 muscles that attach to your scapula to fail. When the scapula is out of position, you are putting yourself at a mechanical disadvantage. In other words, it’s not strength, it’s positioning. As a physical therapist, I am always amazed to see how much strength is trapped in the body because bones are out of position. When I put the bones back in to the right position, the muscles are at the right length, and all of a sudden, the body moves better. You may be strong, but you are always stronger in balance and in alignment.

This is especially true for the strength and balance required to do a pull-up. Put the scapula in the right position, and your lower trap, biceps, and lats will work much better. With the scapula out of position, you are asking your teres major and minor (which are tiny muscles) and only a portion of your lat to lift your entire body. No wonder you can’t get your chin up to the bar.

The Solution:

You need to start releasing muscles that attach to your shoulder. Modern life is about texting, working on the computer, and stuffing yourself into airplane seats built for 12 year old kids. The result is a forward head and rounded shoulders and ultimately, a shoulder blade that is constantly drifting forward and up. Gravity exacerbates the situation, pulling you down and further out of position.

Thanks
Asit Ghosh
Senior Lecturer, TE

109
Allied Health Science / 10 Ways To Make Your Pushup Better
« on: July 14, 2015, 11:17:31 AM »
It’s time to turn up the intensity on this classic exercise.


I don’t need to rattle off the benefits of the pushup. You know it’s a genius exercise. But if you want to make it even more effective, add some equipment.

Using medicine balls, kettlebells, or a suspension trainer while performing a pushup can create an extra stability challenge to your abs and shoulders. Those muscles must work over time to crank out the reps.

Thanks
Asit Ghosh
Senior Lecturer, TE

110
WIMBLEDON, England — Just as Roger Federer was handed the one object he did not want to touch — the Wimbledon runner-up trophy — his wife, Mirka, held up her cellphone from her seat in the family box, capturing the presentation.

Of all the tennis moments that the Federers have experienced, this was not among the best. Still, there was something worth commemorating Sunday. After all, it took Novak Djokovic, the world’s No. 1 player, to beat Federer.
“I still think I had a great tournament,” Federer said after his 7-6 (1), 6-7 (10), 6-4, 6-3 loss in the final. “You can have good tournaments without winning as well at the end. I still won six matches and lost one. The ratio still remains very good.

“But of course, you sort of walk away empty-handed.”
At 33, an age by which some of his contemporaries have resorted to coaching or broadcasting, Federer is still ranked No. 2, and he played like No. 1.5 in this tournament. He served brilliantly (especially in the semifinals, against Andy Murray), moved with his usual grace, flashed some of his signature backhands and imposed his presence at the net.

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111
Cricket / Bangladesh stun South Africa to level series
« on: July 13, 2015, 05:19:28 PM »
Bangladesh thrashed South Africa by seven wickets in the second ODI tie the three-match series at 1-1 after an inspired bowling performance saw the Proteas bundled out for 162, their lowest total against the hosts.

Teenage fast-bowler Mustafizur Rahman and off-spinner Nasir Hossain picked up three wickets each as the tourists were all out in 46 overs after winning the toss and opting to bat on a sluggish pitch at Mirpur.

Bangladesh lost two early wickets to Kagiso Rabada in their chase but opener Soumya Sarkar (88 not out) and Mahmudullah (50) added 135 for the third to ensure the hosts continued their fine form in the 50-over version of the game at home.

The hosts romped to the target with more than 22 overs to spare and the win also sealed their spot among the top eight-ranked nations for the 2017 Champions Trophy in England.

Bangladesh blanked Pakistan and then defeated twice world champions India in their last two ODI series and Sunday's victory was only their second in the format against South Africa, who won the first match of the series by eight wickets.

Rabada, who took six wickets on debut in the last match, gave South Africa some hope by dismissing Tamim Iqbal in his first over and Litton Das in his second but it was not enough.

Mahmudullah fell with Bangladesh four runs from victory and Sarkar took them over the line with a six off leg-spinner Imran Tahir. Left-handed Sarkar also hit 13 fours during his 79-ball unbeaten knock.

Earlier, the South African batsmen failed to find any momentum against the disciplined Bangladesh attack and managed to cross the 100-run mark only in the 32nd over.

Faf du Plessis was the highest scorer for South Africa with 41 while Farhaan Behardien's 36 ensured the team crossed the 150-run mark.

Chittagong will host the third and final ODI of the series on Wednesday.

Scorecard:

South Africa 162 all out in 46 overs (du Plessis 41, Nasir 3-26)

Bangladesh 167-3 in 27.4 overs (Sarkar 88*, Rabada 2-45)

Thanks
Asit Ghosh
Senior Lecturer, TE

112
July 12 (Infostrada Sports) - Scoreboard at close of play in the second One Day International between Bangladesh and South Africa on Sunday in Mirpur, Bangladesh.
South Africa Innings

H. Amla b R. Hossain 22

Q. de Kock c Sa. Rahman b M. Rahman 2

F. du Plessis c Sarkar b Nas. Hossain 41

R. Rossouw b Nas. Hossain 4
D. Miller c Mortaza b Mahmudullah 9

J. Duminy c Sa. Rahman b M. Rahman 13

F. Behardien c Nas. Hossain b Mortaza 36

C. Morris lbw b R. Hossain 12

K. Rabada b M. Rahman 10

K. Abbott lbw b Nas. Hossain 5

I. Tahir not out 1

Extras (lb-4 w-3) 7

Total (all out, 46 overs) 162

Fall of wickets: 1-16 Q. de Kock,2-45 H. Amla,3-59 R. Rossouw,4-74 D. Miller,5-93 F. du Plessis,6-100 J. Duminy,7-116 C. Morris,8-138 K. Rabada,9-160 K. Abbott,10-162 F. Behardien

Bowling

M. Rahman 10 - 1 - 38 - 3

M. Mortaza 5 - 0 - 17 - 1(w-1)

S. Al Hasan 10 - 0 - 30 - 0

R. Hossain 9 - 2 - 34 - 2

Nas. Hossain 8 - 0 - 26 - 3

Mahmudullah 4 - 0 - 13 - 1(w-2)

Bangladesh Innings

T. Iqbal b Rabada 5

S. Sarkar not out 88

L. Das b Rabada 17

Mahmudullah c Amla b Abbott 50

S. Al Hasan not out 0

Extras (nb-2 w-5) 7

Total (for 3 wickets, 27.4 overs) 167

Fall of wickets: 1-5 T. Iqbal,2-24 L. Das,3-159 Mahmudullah

Did not bat: M. Rahim, S. Rahman, N. Hossain, M. Mortaza, R. Hossain, M. Rahman

Bowling

K. Abbott 5 - 0 - 22 - 1

K. Rabada 7 - 0 - 45 - 2(nb-1 w-5)

C. Morris 3 - 0 - 29 - 0(nb-1)

I. Tahir 8.4 - 1 - 40 - 0

J. Duminy 2 - 0 - 20 - 0

F. Behardien 2 - 0 - 11 - 0

Referees

Umpire: Enamul Haque

Umpire: Richard Illingworth

TV umpire: Michael Gough

Match referee: David Boon

Result: Bangladesh won by 7 wickets

Thanks
Asit Ghosh
Senior Lecturer, TE

113
Tennis / Rain to blame for Wimbledon woe, says Federer
« on: July 13, 2015, 04:48:33 PM »
London (AFP) - Roger Federer claimed the rain that interrupted his Wimbledon final defeat against Novak Djokovic was the crucial factor in his failed bid to win a record eighth All England Club title. Federer slumped to a 7-6 (7/1), 6-7 (10/12), 6-4, 6-3 loss on Sunday and the Swiss star felt it was a brief third set delay caused by light showers that proved the key turning point.
Having won a thrilling second set tie-break to level the match, Federer had just dropped his serve to fall 3-2 behind when the rain came.

But the weather improved quickly and within 20 minutes the court covers were taken off, leaving Federer feeling slightly flustered as tournament officials hurried to get the players back on court.

"I think maybe the rain came at a bad time for me. Maybe if it came earlier or much later, it would have been better," the world number two said.

"The way it was, I couldn't take advantage of it, even though I had a Love-30 game shortly after I came back.
"It was a little bit of a rushed rain delay. Out, back on. Try to speak to your team, try to relax, at the same time stay warm. It's not like hectic, but it's not the usual rain delay you have.

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114
Roger Federer came into the men's final hungry for his first title since 2012. Novak Djokovic came in looking to avenge a stunning loss in last month’s French Open final.

They were about as evenly matched as any players could be, Federer holding a slight 20-19 advantage in their head-to-head and each playing phenomenal tennis throughout the fortnight in London.

Each won 37 points in the first set. Each won 51 points in the second set – a dead heat, exactly as expected, as they split tiebreaks in each.

The next two sets seemed clinical for Djokovic, who did not let Federer break him again as he claimed the 7-6, 6-7, 6-4, 6-3 win over the Swiss legend. Federer may be the best ever, but Djokovic left no doubt that he is the best right now.


Thanks
Asit Ghosh
Senior Lecturer, TE

115
Textile Engineering / Viscose- the regenerated fiber
« on: July 10, 2015, 02:19:10 PM »
Viscose is a viscous organic liquid used to make rayon and cellophane. Viscose is becoming synonymous with rayon, a soft material commonly used in shirt, coats, jackets, and other outer wear.
Manufacture
Cellulose from wood or cotton fibers is treated with sodium hydroxide, then mixed with carbon disulfide to form cellulose xanthate, which is dissolved in more sodium hydroxide. The resulting viscose is extruded into an acid bath, either through a slit to make cellophane, or through a spinneret to make rayon. The acid converts the viscose back into cellulose.
 

Cellulose is treated with alkali and carbon disulfide to yield viscose.
 Pollution
Viscose currently is becoming less common because of the polluting effects of carbon disulfide and other by-products of the process, forcing some factories to close.



History
French scientist and industrialist Hilaire de Chardonnet (1838-1924) — who invented the first artificial textile fiber, artificial silk—created viscose in Échirolles in 1891. Three British scientists, Charles Frederick Cross, Edward John Bevan, and Clayton Beadle patented the process in 1902.
Products made from viscose
•   Art silk
•   Cellophane
•   Rayon
•   Modal
•   Synthetic velvet   
 
Rayon Fiber Characteristics
o   Highly absorbent
o   Soft and comfortable
o   Easy to dye
o   Drapes well 

Spinneret (polymers)
Spinneret refers to a multi-pored device through which a plastic polymer melt is extruded to form fibers. Streams of viscous polymer usually exit into cool air or liquid to solidify. The individual polymer chains tend to align in the fiber because of viscous flow. This air stream liquid-to-fiber formation process is similar to the production process for cotton candy. The process may be referred to as Gel spinning or Polymer spinning.





Some Major Rayon Fiber Uses
•   Apparel: Accessories, blouses, dresses, jackets, lingerie, linings, millinery, slacks, sport shirts, sportswear, suits, ties, work clothes
•   Home Furnishings: Bedspreads, blankets, curtains, draperies, sheets, slipcovers, tablecloths, upholstery
•   Industrial Uses: Industrial products, medical surgical products, nonwoven products, tire cord
•   Other Uses: Feminine hygiene products

116
Tennis / Roger Federer has aged more gracefully than anyone should
« on: July 10, 2015, 01:32:01 PM »

We've been talking about Roger Federer's imminent decline for half a decade now. And there he is, the No. 2 player in the world, prepping for yet another Wimbledon semifinal.



Asit Ghosh
Senior Lecturer, TE

117
Football / Neymar defends Lionel Messi after Copa America loss
« on: July 10, 2015, 01:29:11 PM »
Brazilian soccer phenom Neymar has come to the defense of his Barcelona teammate and best friend Lionel Messi, who has been criticized heavily in the Argentine media for his performance in the Copa America.

“Everyone we were with during the whole year, and our fans know that Leo is the best, he is number one,” Neymar told reporter Joaquim Piera of Sport on Thursday.

At the Copa America, which matched up several top South American teams in a World Cup-style tournament, Messi didn’t come out on top. Argentina made it to the final on Saturday, but ultimately lost to Chile on penalties. And Messi, himself, scored just one goal in the tournament, which caused even his own grandfather to question his dedication to the national team.

Some of him was there,” Antonio Cuccitini told Radio Casilda (via Goal.com) this week. “Triumphs are the greatest things there are. But the last three games he was bad. He was lazy.”

Messi, however, might be more upset about his side’s loss than anyone.

“There’s nothing more painful in soccer than losing a final,” he wrote on Facebook on Monday. “But I can’t spend anymore time without saying thank you to everyone who has always supported us and continued to during the tough moments.”

Messi will soon get the full support of his friend Neymar in person when the two reunite to compete for the International Champions Cup. Barcelona will face off against the Los Angeles Galaxy at the Rose Bowl on July 21; against Manchester United at Levi’s Stadium in Santa Clara, Calif., on July 25; against Premier League champions Chelsea at FedEx Field near Washington on July 28; and against Fiorentina in Florence, Italy, on Aug. 2.


Asit Ghosh
Senior Lecturer, TE

118
Football / Argentina go above Germany to top world rankings
« on: July 10, 2015, 01:27:07 PM »
Zurich (AFP) - Lionel Messi's Argentina on Thursday knocked Germany off top place in the FIFA world rankings despite having lost to their rivals in the World Cup final last year and to Chile in last weekend's Copa America.

Reaching the Copa final took the Argentines up two places to claim number one ranking for the first time in seven years.

New South American champions Chile moved up eight places to number 11. 

119
Public Health / How Much Should You Be Able to Squat?
« on: July 10, 2015, 01:15:44 PM »
The longer you do squats, the more weight you can add on.

Few of us take the time to squat regularly. “The majority of my clients come to me with limited squat mobility — back squatting below parallel, with as perfect form as possible is an achievement,” says Jon-Erik Kawamoto, a Strength and Conditioning Coach based in St. John’s Newfoundland. “Which means we have to spend months improving either shoulder, hip or ankle mobility”. That work is worth it: Squatting benefits core, back, and leg strength, and is a great test of overall fitness. So how much should you be able to squat? According to Kawamoto, if you're "35-45 year-olds, back squatting your bodyweight with full range of motion is an excellent target.“ You can scale down (or up) from there with age.

Asit Ghosh
Senior Lecturer, TE

120
Tennis / Nobody beats Sharapova 17 times in a row -- except Serena
« on: July 10, 2015, 01:12:06 PM »
London (AFP) - Thirty-five years after Vitas Gerulaitis famously exclaimed that nobody beats him 17 times in a row, Maria Sharapova now knows how the flamboyant American felt.
Gerulaitis was celebrating ending his eight-year, 16-match losing streak to Jimmy Connors when he finally turned the tables on his nemesis in Madison Square Garden in 1980, a feat which allowed him to issue his famous tongue-in-cheek public cry of defiance.

Unfortunately for Sharapova, there appears no end in sight to her record of failure against Williams.

Thursday's 6-2, 6-4 loss to the world number one in the Wimbledon semi-finals was her 17th in succession and 18th overall at the hands of the American.

The Russian's only two wins came way back in 2004, one in the Wimbledon final and the other in the end of year championships.

Since then, Serena has won all the on-court skirmishes and most of the off-court disputes.


Asit ghosh
Senior Lecturer, TE

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