A Smart Meter

Product Details

Application

Model DEM011TA single phase electronic DIN rail active energy meter is a kind of new style single phase two wire active energy meter. It has adopted micro-electronics technique, imported large scale integrate circuit, and used advanced technique of digital, SMT techniques, and etc. The meter completely accords with relevant technical requirements of class 1 single phase active energy meter stipulated in international standard IEC 62053-21. It can accurately and directly measure 50Hz or 60Hz active energy consumption from single phase AC electricity net. It can display total energy consumption by step motor type impulse register. It has following features: good reliability, small volume, light weight, specious nice appearance, convenient installation, and etc. This meter has already gotten the patent certificate from China State Intellectual Property Office at present. Patent certificate NO. ZL 2006 3 0106828.1. All the other country patent certificates are in processing.

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Pregnancy is a time of excitement and anticipation, and mothers-to-be are often brimming with questions, many of them, unfortunately, based on myth and superstition. If I drink coffee during my pregnancy, will my baby be born with brown spots? Can looking at a lunar eclipse really cause a deformity in my child? There are countless myths, superstitions, and old wives’ tales about pregnancy, many of them wonderfully misleading and yet actually believed and perpetuated. Five remarkable ones are presented and debunked here.

1.Hair and birth defects

If a woman’s hair is cut while she is pregnant, the baby could develop problems with its vision. It is difficult to fathom a natural process that could underlie the cause and effect implied by this superstition. More controversial is whether women should dye their hair while pregnant. The use of hair dyes has not been definitively linked to birth defects in humans, though experts advise against it in the first trimester.

2. The lunar effect

Among the more firmly entrenched superstitions of pregnancy is the notion that the frequency with which babies are born increases during a full moon. Even some medical staff who work in labor and delivery wards believe this one, possibly reinforcing in the popular mind the plausibility for an actual connection. Despite extensive investigation, however, scientists have yet to identify an association between full moons and birth rates.

3.Ugly animals

An old wives’ tale that exists in several cultures suggests that when a pregnant woman looks at an unpleasant or ugly animal, her baby will take on a resemblance of that animal. There is no evidence to support the idea, and more importantly, babies simply cannot be ugly.

4.No gifts, please

In some cultures, it is believed that buying, receiving, or opening baby gifts before the baby arrives attracts evil spirits or brings misfortune, such as a miscarriage. Based heavily on fear and belief in magic, this one bears the hallmarks of superstition. Along similar lines, some women believe that the baby’s spirit will be scared away (in a miscarriage) if the pregnancy is announced too early. This, too, is based on a false understanding of causation. The risk of miscarriage naturally is higher in the first trimester compared with the second and third trimesters. Announcing a pregnancy in those first weeks has no influence on miscarriage risk.

5. Tummy rub

As tempting as it may be, a pregnant woman should refrain from excessive rubbing of her protruding tummy, according to an old wives’ tale from China. If she indulges beyond reason, her baby will be spoiled. What the myth suggests is highly unlikely. It is worth noting, however, that by 10 weeks of gestation the developing fetus can sense touch, producing responses when prodded through the mother’s abdomen.

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