With the rapid development of modern science and technology, an invisible, intangible source of pollution has been receiving increasing attention from all walks of life. This is electromagnetic radiation that people call "invisible killers." For the good conductor of the human body, electromagnetic wave induction will inevitably constitute a certain degree of harm. Long-term exposure to radiation can severely damage our cellular health. Therefore, for the problem of what fruit to eat for radiation protection, all office workers should be particularly aware of it. In fact, many of our common fruits have superior anti-radiation efficacy. Which fruits can protect against radiation 1. Oranges: Oranges are a kind of fruit that many people like to eat. Oranges generally mature in the fall. Therefore, when the oranges are listed on the market, the computer family should eat more. The reason why oranges have very effective anti-radiation efficacy is due to the fact that oranges contain a lot of nutrients such as vitamin e and vitamin C. It can be said that these two nutrients are antioxidant vitamins and their antioxidant activity is strong. Can play a very effective role in the prevention of computer radiation, in addition to reduce the peroxidation. However, special attention should be paid when eating oranges. Since oranges are hot, they should pay attention to the amount when eating, otherwise they are prone to lit symptoms. Experts suggest that no more than two oranges can be eaten per person per day. 2. Mango: Mango is a kind of tropical fruit, and it is also a fruit that many people like to eat very much. Besides it is one of the fruits that are very resistant to radiation. The reason why mango can help us effectively play a role in radiation resistance is due to the presence of vitamin A and beta-carotene, both nutrients are natural antioxidants, especially carotene contained in mangoes. More effective antioxidants. The amount of edible mangoes in daily life is not only very beneficial to eye health, but also can help office workers to effectively prevent radiation. In addition, the carotene in mangoes also has the function of protecting human cells, and long-term proper consumption can prevent canceration. For long-term office workers, radiation protection is an extremely important aspect. Therefore, in the issue of what fruit to eat radiation, mango must also eat more. 3, kiwi fruit: the king of vitamins Kiwi fruit (kiwi fruit) is rich in dietary fiber and antioxidant substances, can heat and reduce fire, run dry detoxification. At the same time, kiwifruit has a component called serum-promoting hormone, which stabilizes emotions and has a certain effect in mitigating the irritability and irritability caused by toxin deposition in the liver. Kiwi fruit is rich in vitamin C and soluble plant fiber, but also to supplement the eye lens nutrition. In addition, the antioxidant active substances in kiwifruit are ranked high in fruits and have a good effect on eliminating free radicals in the body. You know, from the base is a variety of radiation left in the body of garbage! 4, grapefruit: It contains a lot of vitamin A, vitamin B1 and vitamin C, is a typical alkaline food, can eliminate long-term use of computers on the nervous system caused by the harm. Eating often can make people energetic and have the effect of refreshing the mind and promoting memory. 5. Grapes: Supplement with antioxidants to fight free radicals accumulated in the body due to electromagnetic pollution. Must eat together skin, core, and meat, because of higher levels of antioxidants in the skin and kernels. 6, Apple: rich in vitamin A and carotene, to help the eyes recover from fatigue, to supplement the retinal fatigue due to the consumption of large amounts of vitamin A. Looking at the computer for a long time to come to an apple is most helpful to restore eye fatigue. In order to provide multiple flavors, Watermelon Cat has put a variety of imported apples, including snake fruit, Belle apples (Jina fruit) and Chilean green apples, to enjoy the taste of various apples. 7. Cherries: After long-term research, the experts found that if you want to enhance the body's own radiation protection, you must add more lycopene in your daily life. Only in this way can the body's anti-radiation ability be enhanced. In addition to being extremely rich in tomatoes, nutrients such as lycopene are also very abundant in many red fruits. The lycopene contained in the cherries is abnormally rich. Experts point out that the antioxidant power of lycopene is the strongest among carotenoids, and it even has more antioxidant effects than vitamin E known to everyone. Therefore, office workers should eat more cherries in normal life, in addition to other foods like apples and dragon fruit. The lycopene in these fruits can also scavenge free radicals, thus better protecting the health of human cells.
Everything You Need To Know About LED Lighting
2.LED stands for light-emitting diode.
A diode is an electrical device or component with two electrodes (an anode and a cathode) through which electricity flows - characteristically in only one direction (in through the anode and out through the cathode). Diodes are generally made from semi-conductive materials such as silicon or selenium - substances that conduct electricity in some circumstances and not in others (e.g. at certain voltages, current levels, or light intensities).
2.It`s really simple actually, and very cheap to produce, which is why there was so much excitement when LED lights were first invented!
When a light-emitting diode (LED) has a voltage source connected with the positive side on the anode and the negative side on the cathode, current will flow (and light will be emitted, a condition known as forward bias). If the positive and negative ends of the voltage source were inversely connected (positive to the cathode and negative to the anode), current would not flow (a condition known as reverse bias). Forward bias allows current to flow through the LED and in so doing, emits light. Reverse bias prevents current from flowing through the LED (at least up until a certain point where it is unable to keep the current at bay - known as the peak inverse voltage - a point that if reached, will irreversibly damage the device).
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LEDs are a simple invention with huge potential to change the lighting industry for the better. Don`t know much about them? Here are three big things you need to know to get your feet under you:
1.What Does LED Stand For?
2.A light-emitting diode is a semiconductor device that emits visible light when an electrical current passes through it. It is essentially the opposite of a photo-voltaic cell (a device that converts visible light into electrical current).
Did You Know? There is a similar device to an LED called an IRED (Infrared Emitting Diode). Instead of visible light, IRED devices emit IR energy when electrical current is run through them.
1.How Do LED Lights Work?
The p-type and n-type materials are created by introducing the original material to atoms of another element. These new atoms replace some of the previously existing atoms and in so doing, alter the physical and chemical structure. The p-type materials are created using elements (such as boron) that have less valence electrons than the intrinsic material (oftentimes silicon). The n-type materials are created using elements (such as phosphorus) that have more valence electrons that the intrinsic material (oftentimes silicon). The net effect is the creation of a p-n junction with interesting and useful properties for electronic applications. What those properties are exactly depends mostly on the external voltage applied to the circuit (if any) and the direction of current (i.e. which side, the p-type or the n-type, is connected to the positive terminal and which is connected to the negative terminal).
Application of the Technical Details to LED Lighting: