Slider Coils
Aug/080
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Slider Coils
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The Emerald Tree Boa, scientifically known as Corallus caninus is a non-venomous snake, which is mostly found in South America, deep in the rainforests. Here is a care sheet for the Emerald Boa.
Vivarium: Since the Emerald Boa is a highly arboreal snake, a suitable vivarium needs height and sturdy branches/perches for the snake to climb on. They have a very slow metabolism, and will spend long periods wrapped around a single branch. Therefore a very large enclosure is not required. A 36" cube style is ideal, and the key to successfully keeping and breeding these snakes is simplicity - use a simple substrate or paper towels, no hide box (since these boas will coil around a branch rather than hide) and a large bowl of water to keep the humidity up.
Food: The baby emerald tree boa needs one prey item of a suitable size (no larger than the girth of the snake) every fourteen days. Neonate boas need one full defecation after every feed. As an adult, the Emerald Boa needs one feed every twenty one to twenty eight days. The adult boas need in this case one full defecation for every two to three meals. The size of prey offered should be on the small size, certainly smaller than the girth of the snake. Once the small animal is given to the snake, you shouldn't be able to notice something more than a slight enlargement in the body of the boa. Over feeding with large prey, or too many meals will cause obesity and digestive problems which this species is especially prone to.
Temperature: When it comes to temperature, there are three cycles that you actually should take under consideration. The one is the maintenance cycle, which begins six days after the feeding and lasts until the next time you will feed the emerald. The temperature in this case should range between 72F and 84F. The second cycle is the feeding cycle. The average temperature of this cycle should be also around 82F. In any case, the temperature should not rise above 90F before and after the feeding time. The third and last cycle, is the mating cycle. During the breeding and reproduction time, the temperature should be at 86F during the day and close to 70F during night. This cycle lasts for 12 weeks. After this, it should be back to normal maintenance cycle.
Humidity. Humidity is very important for all reptiles, but especially so for the Emerald Tree Boa. During the day, humidity should be close to 70-80% and during night close to 45-60%. The emerald's aquarium should be kept humid enough during all cycles of its life, ensuring proper health. These boas are prone to dehydration, and allowing the humidity to drop below 50% for extended periods. can cause serious health issues and even death. During the mating cycle, it is recommended to increase the daily humidity, to 70-90% and the night one towards 55%. The night time humidity levels are to be kept low, because that allows the vivarium to dry, minimizing possible bacterial infections.
Shedding Period: Emeralds will normally shed without difficulty so long as the humidity is kept at an optimal level. If your boa has problems with shedding, you should place the boa in a snake bag, along with a towel soaked in warm water. Place the bag with the snake in a plastic tub and place it in a warm place - of approximately 85F. Keep the snake in this condition for a couple of hours so as to stay damp and saturate the unshed skin. This can be repeated if necessary.
The Emerald Tree Boa is an amazing animal. While not suitable for beginners, experienced snake owners will delight in watching these magnificent snakes. They do not tolerate handling, and have large teeth which they are not afraid to use, so use of a snake hook is essential. If you want a snake you can handle often go for a Boa Constrictor, but if you want a truly magical animal and a superb display snake, and are able to meet its demanding care regime, the Emerald Tree Boa could be for you.
Billy is a reptile specialist and author with over 25 years experience keeping snakes. For more information on emerald tree boa care, try visiting http://www.boa-care.com, his popular website that provides tips, advice and resources on caring for boas.
Ykk India World Leading Zipper Manufacturer Company
YKK India World Leading Zipper Manufacturer Company, YKK produces a vast range of zippers, suitable for every application from high fashion to heavy industry. Whatever your needs, YKK can supply the fastening solution. Every zipper is made to the highest quality standards and with the attention to detail that has made YKK number one worldwide.
Zipper consists of two strips of fabric tape, each affixed to one of the two pieces to be joined, carrying tens or hundreds of specially shaped metal or plastic teeth. The slider, operated by hand, moves along the rows of teeth. Inside the slider is a Y-shaped channel that meshes together or separates the opposing rows of teeth, depending on the direction of its movement. The friction of the slider against the teeth causes a characteristic buzzing noise, which is probably the origin of the name zip(per). The name also may have originated in the greater speed with which the two sides of a zipper can be joined or separated, compared to the time needed for fastening or undoing laces or buttons
Some zippers have two slides, allowing variation in the opening's size and position. In most jackets and similar garments, the opening is closed entirely when one slide is at each end. In most baggages the opening is closed entirely when the two slides are next to each other at any point along the zipper.
Zippers may:
(a) increase the size of an opening to allow the passage of larger objects, as in the fly of trousers or in a pocket .
(b) join or separate completely two ends or sides of a single garment, as in the front of a jacket.
(c) attach or detach completely one separable part of the garment to or from another, as in the conversion between trousers and shorts.
(d) decorate an item.
A zipper costs very little, but if it fails, the garment may be unusable until the zipper is repaired or replaced. Problems often lie with the zipper slider, which may have bent upwards due to wear. If so, it can be easily repaired by pushing the slider downwards
Types
· Coil zippers now form the bulk of sales of zippers world-wide. The slider runs on two coils on each side; the "teeth" are the coils. Two basic types of coils are used: one with coils in spiral form, usually with a cord running inside the coils; the other with coils in ladder form, also called the Ruhrmann type. This second type is now used only in a few parts of the world, mainly in South Asia.
Coil zippers are made of polyester coil and are thus also known as polyester zippers. Nylon was formerly used and though only polyester is used now, the type is still known as a nylon zipper.
Invisible zippers' teeth are behind the tape. The tape's color matches the garment's, as does the slider, so that, except the slider, the zipper is "invisible". This kind of a zipper is common in skirts and dresses. Invisible zippers are usually coil zippers or to be precise polyester zipper.
Metallic zippers are the classic zipper type, found mostly in jeans today. The teeth are not a coil, but are individual pieces of metal moulded into shape and set on the zipper tape at regular intervals.
Metal zippers are made in brass, aluminium and nickel, according to the metal used for teeth making. All these zippers are basically made from flat wire.
A special type of metal zipper is made from pre-formed wire, usually brass but sometimes other metals too. Only a few companies in the world have the technology. These type of pre-formed metal zippers are mainly used in high grade jeanswear, workwear, etc., where high strength is required and zippers need to withstand tough washing.
Plastic-molded zippers are identical to metallic zippers, except that the teeth are plastic instead of metal. Metal zippers can be painted to match the surrounding fabric, plastic zippers can be made in any color of plastic. Plastic zippers mostly use polyacetal resin though other resins are used too like polyethylene.
Open-ended zippers use a "box and pin" mechanism to lock the two sides of the zipper into place, often in jackets. Open-ended zippers can be of any of the above specified types.
Closed-ended zippers are closed at both ends; they are often used in baggage.
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installing a zone valve thermometer. what kind to get? SPDT?
i am concerned the accuracy is off. i need a new one, preferably digital. the current analog mercury one works like this, it is fed with 3 wires, one is common(Red), one is to open the valve(White), and one is to close the valve again(Green). in other word's, the mercury bulb has 3 contacts, the Red(Common) is in the middle. The Green(valve close) is in the top, and the White(valve open) is on the bottom. when the slider moves the coil to the right, the mercury blob completes the ckt between the common and the valve open wires. that is how the current one operates. can this be re produced digitally, and if so what is the thermometer called? can you provide links to a website for it then?
_-----------------------------2 (NC) Green
1
----------------------------3 (NO) White
most will do that operation. just look for spdt designation
Portable air conditioner can make sense
Dear Jim: I like to use natural ventilation, but sometimes I need to air-condition. Since it is just my husband and I here now, we need to cool only a room or two. Would a portable air conditioner make sense for us? — Joan C.
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