Spark Proof Fan Blower}

December 12th, 2017 by bgVAWJW9

Spark Proof Fan Blower

by

Susann Terlitski

Tough applications mean tough fans and blowers by Canada Blower Co. Canada Blower is a world wide distributor of industrial process ans OEM fans and blowers, as well as fan / blower components; including high pressure blowers, high temperature fans, spark resistant and explosion proof ventilators, tubeaxial and vaneaxial high pressure ventilators. Canada Blower also does existing fans and blowers repairs, re-build, as well as dynamical wheels balancing.

Typical Class I Locations Include:

Petroleum refining facilities

Dip tanks containing flammable or combustible liquids

Dry cleaning plants

Organic coating manufacturing plants

Paint spray booths

Spray finishing areas (residue must be considered)

Petroleum dispensing areas

Solvent extraction plants

Plants manufacturing or using pyroxylin

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(nitro-cellulose) type and other plastics

(Class II also)

Locations where inhalation anesthetics are used

Utility gas plants and operations involving storage and handling and liquefied petroleum and natural gas

Aircraft hangars and fuel servicing areas

Typical Class II Locations Include:

Grain elevators and bulk handling facilities

Magnesium and aluminum powder manufacture and storage facilities

Starch manufacture and storage facilities

Fireworks manufacture and storage facilities

Flour and feed mills

Pulverized sugar and cocoa packaging and handling areas

Coal preparation and handling facilities

Spice grinding plants

Confectionery manufacturing plants

Typical Class III Locations Include:

Woodworking plants

Textile mills

Cotton gins and cotton seed mills

Flax producing plants

Certain chemicals may have characteristics that require safeguards beyond those required for any of the certified atmospheric groups. Carbon disulfide is an example of such a chemical because of its low ignition temperature and the small joint clearance to arrest its flame propagation.

Some metal dust may have characteristics that require safeguards beyond those required for atmospheres containing the dust of aluminum, magnesium and their commercial alloys. For example, zirconium, thorium and uranium dust have extremely low ignition temperatures and minimal ignition energies lower than any material classified in any of the Class I or Class II groups.

The Hazardous Location fans incorporate spark proof construction in its design to minimize the potential for a random spark being the ignition source of an explosion in a hazardous location. All major components are fabricated from materials that will not produce a spark when struck by a direct impact blow i.e. aluminum propeller or blade and explosion proof motors.

As an illustrative example, consider the potential consequence if a tool is dropped and strikes the blade or propeller of an exhaust / ventilation fan in use. With in a non-hazardous atmosphere, the risk for an explosion is minimal. However, if the same tool strikes the exposed, steel surfaces of a fan operating in a hazardous location containing gasoline fumes, the results could be drastically different. The blow produced by the tool could create a random spark. In the case of gasoline fumes, the addition of a proper air and gasoline fume mixture could result in an explosion. Minimizing this potential for a spark ignition is also an important reason to use spark proof tools and related equipment in hazardous locations. By incorporating basic spark proof blade / motor construction, the potential for a spark-ignited explosion caused by a direct blow is greatly minimized. The use of an explosion proof motor alone, or an aluminum blade / propeller, does not qualify the fan as “explosive proof”. IMPORTANT! No air exhaust / ventilation fan is totally explosion proof. Only a product utilizing proper design and certification standards can minimize the risk of an explosion in an applicable hazardous atmosphere.

Additional information can be found at the AB Blower company web site http://www.abbblower.com/products/centrifugal_inline_fans.html

Susann Terlitski

Designer of Industrial Air Handling Units

AB Blower Co.

nis@primus.ca

http://www.abbblower.com/products/centrifugal_fans.html

http://www.abbblower.com/products/industrial_fans.html

Susann TerlitskiDesigner of Industrial Air Handling UnitsAB Blower Co.nis@primus.cahttp://abbblower.com/products/centrifugal_fans.htmlhttp://abbblower.com/products/industrial_fans.html

Article Source:

eArticlesOnline.com }

Cruise ship sinks off Greek coast, two missing

December 12th, 2017 by bgVAWJW9

Thursday, April 5, 2007

An evacuation operation was carried out today as a cruise ship ran aground off the coast of Santorini, a Greek island, leaving up to 1,167 passengers and 391 crew to abandon the ship.

The Sea Diamond took on water and listed twelve degrees after running aground, but had been stabilized. Fifteen hours after the grounding, the ship sank.

Cruise operator Louis Cruise Lines had announced earlier that all passengers and crew were accounted for. Officials are now reporting that two passengers are missing. A 45-year-old man, Jean-Christophe Allain, and his 16-year-old daughter, Maud, were reported missing by family members also on the cruise, according to a merchant marine ministry official.

BBC journalist Malcolm Brabant reported that the missing passengers had been in a lower-deck cabin when the ship ran aground. Allain’s wife and son escaped safely to the upper decks.

Most of the passengers on board the Sea Diamond ship are either American or German. Local news reported that the ship is taking on water after striking a reef in the volcanic island’s lagoon, similar to a lake, and issued a distress signal, launching an operation that led more than a dozen ships and five Greek Navy helicopters to evacuate all the people on board, with many boarding a small ferry.

The ship was about one nautical mile – 1.8km – from the island’s coast when it ran aground. The ship’s operators, Louis Cruise Lines, earlier said that a “controlled evacuation” was underway, but that “there is no danger to passengers”. The ship had left the Athenian port of Piraeus on Monday for a five-day tour of the islands. The sea was calm when the incident occurred.

“Some passengers have already reached the island and no-one has been hurt,” an official at the Santorini coastguard has said, whilst Merchant Marine Minister Manolis Kefaloyiannis said to reporters, “Thankfully, everything has gone well so far. Emergency services responded very quickly and very well.”

US retailer Circuit City files for bankruptcy protection

December 12th, 2017 by bgVAWJW9

Tuesday, November 11, 2008

On Monday, United States electronics retailer Circuit City announced that it would file for Chapter 11 bankruptcy protection. Second largest in its field, behind Best Buy, the company has previously announced that it would close down 155 of its locations leaving an estimated 8000 employees jobless.

The retailer also said more cutbacks will be on the way. “Circuit City was incredibly successful in the 1980s and 1990s, but they never changed after that,” says David Schick, an analyst at Stifel Nicolaus.

In August, Best Buy, reported that its profits had gone up to show a quarterly profit of US$200 million. Meanwhile, Circuit City reported a loss of $239 million in September.

Telescope takes first image of planet outside our solar system

December 12th, 2017 by bgVAWJW9

Saturday, April 2, 2005

Space.com reported yesterday on a picture of a planet taken by the Very Large Telescope located in Chile. The European Southern Observatory’s telescope, which was used to capture the picture, has made the first confirmed discovery of a planet orbiting another star.

Scientists have been trying to locate planets outside our own solar system for nearly 10 years. Inferences of nearly 150 planets in other solar systems have been observed so far by using instruments and measurements that only suggest the existence of another planet. Until now, no planet has been confirmed by the means of a photographed image. There was, months earlier, another team of scientists who took pictures of what might be another planet, but that image remains controversial because it shows what may be an even more distant object instead.

The research team that photographed the planet with its host star was led by Ralph Neuhaeuser of the Astrophysical Institute & University Observatory (AIU). “The detection of the faint object near the bright star is certain,” he told Space.com on Friday.

The new image contains the star, GQ Lupi, with an orbiting planet. It is smaller than our sun, 70% the size, and is located 400 light-years away from our solar system. The planet is nearly twice the size of Jupiter. Unlike our sun which is 4.6 billion years old, the GQ Lupi star is approximately 1 million years old and is considered very young for a star. The planet orbiting GQ Lupi is three times further out than Neptune’s orbit around our sun, and scientists estimate the orbiting period to be about 1,200 years. The planets wide orbiting distance from the GQ Lupi was an important element for enabling the photograph to be taken.

The planet, much like the star it orbits, is very hot — about 2,000 degrees Kelvin — so despite the detection of water in the planet’s atmosphere, which at that temperature would make it gaseous, there is no expectation it might support life.

The discovery will be detailed in an upcoming issue of the journal Astronomy & Astrophysics.

CanadaVOTES: NDP candidate Paul Arbour in Carleton—Mississippi Mills

December 11th, 2017 by bgVAWJW9

Friday, October 10, 2008

In an attempt to speak with as many candidates as possible during the 2008 Canadian federal election, Wikinews has talked via email with Paul Arbour. Arbour is a candidate in Ontario’s Carleton—Mississippi Mills riding, running under the New Democratic Party (NDP) banner.

The riding is currently represented by Gordon O’Connor, a Conservative. The Minister of National Revenue, O’Connor is up against the NDP’s Arbour, Liberal Justin Mackinnon, and Green Jake Cole. Previous MPs in the riding were Progressive Conservative, Liberal, and Canadian Alliance members. A riding since 1988, Carleton—Mississippi Mills is in the Capital region.

The following is an interview with Arbour, conducted via email. The interview has had very limited editing, to eliminate in-text mentions of website addresses, but is otherwise left exactly as sent to Wikinews.

First images received from orbit around Mercury

December 11th, 2017 by bgVAWJW9

Wednesday, March 30, 2011

The first images of Mercury taken from orbit around the planet have been received from NASA’s MErcury Surface, Space ENvironment, GEochemistry and Ranging (MESSENGER) probe. The images come after the spacecraft entered an orbit around the closest planet to the sun on March 17.

After various system examinations, the first images from the spacecraft were sent at 0520 EDT (0920 UTC).

Before arriving in orbit around Mercury, the MESSENGER spacecraft was launched in 2004, passed by Mercury twice in 2008 and once more in 2009. MESSENGER is the first artificial satellite to be placed in orbit around Mercury. Because Mercury is the innermost planet in the Solar System, the sun’s gravitational attraction altered the spacecraft’s approach to the planet. Because of this, a series of several maneuvers over three years was required to put the probe in orbit.

Although MESSENGER is the first probe to enter orbit around Mercury, it is not the first to fly by. Mariner 10 was the first to do this when it made three passes during the 1970s.

NASA is continuing to release images taken by the spacecraft as they arrive at Earth. MESSENGER is scheduled to begin it’s primary mission on April 4, consisting of various scientific and visual observations of the planet. Some of the scientific goals the probe is to accomplish are: determination of the geologic composition of Mercury, study of the planet’s magnetic field and internal composition, and transmission of more than 75,000 images back to Earth.

Wikinews interviews biologist Chris Simon about periodical cicadas

December 11th, 2017 by bgVAWJW9

Wednesday, June 12, 2013

In May, periodical cicadas with 17 years life cycle emerged on the East Coast of the USA after underground development as juveniles since 1996. Researchers and scientists worked to map and study the rare wave, and the locals prepared for the noisy event. First recorded in 1666, the Magicicada septendecim species recently emerged in 1979, 1996, this year, with a next wave due in 2030.

This week, Wikinews interviewed Chris Simon, an ecology and evolutionary biologist at University of Connecticut, about the cicadas.

((Wikinews)) What caused your initial interest in periodical cicadas?

Chris Simon: As an undergraduate student, I was interested in the formation of species so when I went to graduate school I looked for a study organism that was likely to be in the process of forming new species. I chose periodical cicadas because they are broken up into reproductively isolated broods (or year classes). Reproductive isolation leads to speciation so I planned to study biochemical differences among the broods.

((WN)) You study the emergence of the periodical cicadas. What do you study? What observations are you making?

CS: We record exactly where each cicada population emerges (using GPS automated mapping and crowd sourcing). We record the presence or absence of each of the three morphologically distinct species groups of periodical cicadas (Decim group, Cassini group, and Decula group). We collect specimens for DNA analysis. We look for cicadas coming up one and four years early and late. We dig up cicada nymphs and monitor their growth rates.

((WN)) What equipment do you use?

CS: Nets, shovels, automated GPS recorders, cameras, laptop computers, automated DNA sequencers.

((WN)) Do you study the periodical cicadas with anyone else? What is their role?

CS: Yes, there are a large number of people studying periodical cicadas in my lab and in other labs. My lab is made up of Research Scientists, Postdoctoral Researchers, a technician, graduate students, and undergraduates. Research Scientist John Cooley is the leader of the GPS mapping project; he invented the automated GPS recorder; he built our crowd-sourcing website, and he is instrumental in public outreach. Postdoctoral research David Marshall also participates in the mapping project and leads the part of the research related to the mapping of stragglers. John and Dave and Technician Kathy Hill all study periodical cicada mating behavior and conduct mating and hybridization experiments. One of my graduate students Beth Wade has participated in the nymph collections and will soon start genetic work involving genome wide association mapping designed to locate genes related to life cycle. My graduate student Russ Meister is studying the genes of the bacterial endosymbionts of cicadas. My current undergraduate honors student Erin Dwyer is also studying the development of Magicicada nymphs and is helping to design a lab exercise for college students around the eastern US to do the same. Many of my past undergraduate students have studied the biochemical genetics and development of periodical cicadas. See the Simon Lab website.
CS: We are collaborating with Teiji Sota at the University Kyoto and Jin Yoshimura at Shizuoka University in Japan. They are studying the phylogeography of Magicicada. We are collaborating with John McCutcheon of the University of Montana who is studying the endosymbiont genomes.
CS: We are also collaborating with ecologists Rick Karban and Louie Yang, both professors at UC Davis who have an interest in cicada population dynamics and nutrient cycling in the ecosystem.

((WN)) You studied the periodical cicadas in 1979 and 1996 too. What changes with time?

CS: I have studied periodical cicadas since I was a student back in 1974. What changes with time is increased human development constantly shrinking the patch size of cicada populations.

((WN)) What are your thoughts on the long life span of the periodical cicadas? Why could it be so? What advantages and what disadvantages does it have?

CS: Most or all cicadas have long life cycles compared to your typical annual insect. Examples have been found of two-year to 9-year cycles in different species. Periodical cicadas evolved an even-longer life cycle and I think that part of this relates to the evolution of their synchronized life cycles and peculiar safety-in-numbers strategy for survival. To become synchronized, periodical cicadas had to evolve an exact length life cycle and all adults would have to appear in the same year. Because the nymphs grow at different rates underground, a longer life cycle and a way of counting years must have evolved so that the individuals that get to the last nymphal (underground juvenile) stage first would wait long enough for all other individuals in the population to become ready to emerge.

((WN)) News reports mention this is ‘Brood II’ of the periodical cicadas. What are the distinctive features of this specific species and what is its full scientific name?

CS: The same species exist in multiple broods. No species is restricted to Brood II. The three species present in Brood II are: Magicicada septendecim, M. cassini, and M. septendecula. These same three species are found in every 17-year brood (except the farthest north which only has M. septendecim).

((WN)) At what depth do the cicadas juveniles live underground?

CS: Most live within the top foot of soil but some have been found deeper. We do not know if they go deeper in winter. We need to do much more digging to understand the nymphs.

((WN)) How do people prepare for the cicada emergence?

CS: Of course various people prepare in different ways. Ideally, everyone prepares by studying information available on the web (especially on our websites Magicicada Central and Magicicada.org).

((WN)) Do cicadas affect transport in the local area?

CS: No, not really. Occasionally individuals can be seeing flying across highways and sometimes they smash into cars.

((WN)) Do cicadas usually stay outside or do they also invade houses too?

CS: They stay outside. One might accidentally fly in through an open window but that would be rare.

((WN)) What do the cicadas eat?

CS: Cicadas suck xylem fluid (the watery fluid coming up from the roots of plants) in deciduous forest trees and herbs. Essential amino acids in the cicada diet are supplied by their bacterial endosymbionts. There are two species of endosymbionts. One makes 8 essential amino acids and one makes two essential amino acids.

((WN)) Do cicadas damage crops or city vegetation? What damage?

CS: Cicadas do not chew leave so they do not damage crops like other insects. They can inflict some damage by their egg laying. Cicadas lay eggs in pencil-sized tree branches. If there are not enough branches available, too many female cicadas may lay eggs in a single branch weakening it and making it susceptible to breakage by wind. This can sometimes cause damage in fruit orchards. If the branches break, the eggs die so this behavior is selected against by natural selection.

((WN)) Thank you.

CS: You’re welcome. I am happy to have this opportunity to communicate with your readers!

Impress Your Love Ones With Personalized Photo Ornaments

December 11th, 2017 by bgVAWJW9

By Bennetta Elliott

Christmas is the most awaited occasion, especially by children. It is during this season that they look forward to receiving presents. The joy in a child’s face when he receives a present during this season is just priceless. And even the adults, receiving a gift from the people they love can make their Christmas merrier. This is why, it’s very important to consider the type of gifts that we should wrap and give to either the children or the adults. These gifts should not necessarily be expensive, but should be something that they can value and treasure for the rest of their lives. And the more personalized it is, the better. One best example of this are personalized photo ornaments.

Photo ornaments are smart choice for Christmas presents, and even to other occasions. This is because it’s flexible for customization. You can choose unique photo ornaments to personalized ornaments with cute holiday designs to suit the occasion. Even these designs can be personalized with names or date. You can also suggest for additional designs depending on your preference. And if the material is good, you can coat on both sides of the photo ornaments so they can be decorated on the front and back. You can display your full color photo on one side and your special message on the back. You can also choose from a variety of font colors and styles with clip-arts to enhance the design.

The type of materials to use for these photo ornaments should be chosen carefully. Of course, you want it to be special and of high quality. Most cheaper photo ornaments are made of heavier ceramic material. This type of material is not only cheap but boring too. You can’t carry or place it anywhere either since it’s heavy. And it may not last longer so it’s not an ideal material for photo ornaments.

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The best material for photo ornaments is porcelain. It is also a whiter material, so your image will clearly show up on its bright white background. Not only that, since it’s lighter compare to other material like ceramic, it’s easier to display the ornaments on a tree without weighing down the branches or when you hang it on your bag’s zipper.

Anybody who will receive photo ornaments as presents will surely appreciate its value because of the flexibility of their uses and uniqueness of the designs. You can use them as decorations on a table or cabinet. Or hang them on a Christmas tree. Just add a colored string like gold and they should look nice on the tree. There are also Photo ornaments designed as pins. You can pin them on your bag, shirt, or anywhere you want.

Choosing for the right present for any occasion shouldn’t be difficult. There are already stores that offer variety of gift collections that they can customize for you. And to guarantee a good value, choose the stores that already gained good reputation when it comes to materials and the quality of their work. And remember, it’s not the price, but it’s the thought that truly counts when choosing for presents.

About the Author: Bennetta Elliott is a writer for Personalized Gift Express which offers

photo ornaments

and

logo ornaments

.

Source:

isnare.com

Permanent Link:

isnare.com/?aid=583845&ca=Arts+and+Crafts

Ethics debate surrounds surgery to stunt disabled girl’s growth

December 11th, 2017 by bgVAWJW9

Friday, January 5, 2007

An ethical controversy has surged in the United States and elsewhere around nine-year-old Ashley X (her family name has not been released). The disabled girl was operated upon at the request of her parents, to prevent her from growing, menstruating and developing breasts. The parents, who wish to remain anonymous, explain their situation on a blog entitled The “Ashley Treatment”. There have been over 1000 reactions on the blog so far.

Ashley suffers a condition termed static encephalopathy with marked global developmental deficits of unknown etiology, which means brain damage of unknown cause leading to a kind of static condition. She can make sounds, move her arms and kick her legs, but she cannot change her position, eat, walk, talk etc. Many of these children are in poor health and die young, but Ashley is in good health. For all of these functions she depends on her caregivers. Most of the day she passes watching her surrounding, lying on a pillow. Her parents call her their “Pillow Angel”, “since she is so sweet and stays right where we place her—usually on a pillow.”

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Ashley can continue to delight in being held in our arms and will be moved and taken on trips more frequently and will have more exposure to activities and social gatherings.

-Ashley’s Mom and Dad

Ashley’s parents want to keep her at home and care for her themselves, and they want to guarantee their daughter’s quality of life. To this end, they say, Ashley underwent several surgical procedures and medical treatments during a period of three years. To attenuate her growth, Ashley was given high doses of the hormone estrogen. Ashley now measures 4ft 5 (1m 35cm) and weighs around 75 lbs (34 kg), which is below her expected length and weight. Her low body weight and size would improve her comfort, and at the same time facilitate the work of her caregivers.

Surgery to remove her uterus (a procedure called a hysterectomy) and breast buds were performed, so Ashley does not menstruate and will not develop breasts, both of which parents think only would cause her discomfort. Since high estrogen levels can cause menstrual bleeding and breast development, the surgery was also meant to limit these effects. She also underwent surgery to remove her appendix, because it would be difficult to diagnose appendicitis given Ashley’s low communication possibilities.

Cisco sues Apple for iPhone trademark

December 10th, 2017 by bgVAWJW9

Friday, January 12, 2007

The iPhone only made its appearance as a prototype and there have been controversies aroused.

The dispute has come up between the manufacturer of the iPhone (which was resented on Wednesday for the first time) – Apple Inc. – and a leader in network and communication systems, based in San JoseCisco. The company claims to possess the trademark for iPhone, and moreover, that it sells devices under the same brand through one of its divisions.

This became the reason for Cisco to file a lawsuit against Apple Inc. so that the latter would stop selling the device.

Cisco states that it has received the trademark in 2000, when the company overtook Infogear Technology Corp., which took place in 1996.

The Vice President and general counsel of the company, Mark Chandler, explained that there was no doubt about the excitement of the new device from Apple, but they should not use a trademark, which belongs to Cisco.

The iPhone developed by Cisco is a device which allows users to make phone calls over the voice over Internet protocol (VoIP).