In hot summer , people not only suffer the torment of hot temperatures, but also are vulnerable to disease threats. The following living habits should be followed immediately in summer.
Do not blow winds directly and continuously to cervical vertebra. If the air conditioner blows wind to your cervical vertebra, the surrounding soft tissue will have lesion to form the chronic inflammation of muscle and subcutaneous tissue, resulting in sustained neck spasms, back pain and other consequences. It is recommended to adjust the air conditioner not lower than 25 degrees. If you cannot adjust the room temperature , you can take a shawl over her shoulders and have a hot bath at night.
Do not drink water too fast. When the temperature becomes high, the water deficiency speed of body will also accelerate; so many people are accustomed to drink water in large volume. If they drink water too fast, the water will enter into the blood quickly and be absorbed by intestine to dilute blood, increase blood volume and do no good to heart. Patients of coronary heart disease will have chest tightness, breath shortness and other symptoms. Therefore , it is better to drink 100ml to 150ml water every time and the water temperature should be above 10 degree.
Protect your eyes from the hot sun. Eyes are the most fragile organs. Experts advise that eyes like cold instead of hot weather, and it is easy to have premature aging and various eye diseases if people do not notice the sun block. If people need to go out between 10 am and 4 pm, they’d better to wear sunglasses, hats or umbrella. The sunglasses of brown and light green color have best effect in preventing UV; eat more eye nourishing foods such as longan, carrots and dates; due to the fast bacteria breeding speed , try not to rub your eyes with hands; washing faces with flowing water could reduce eye diseases.
Do not get up too early for exercise. The daytime is longer in summer, so some people get up earlier to do exercise in the morning. But the air pollutants in summer are largest in amount and they are not totally diffused before 6am. In addition, without photosynthesis, there is no too much fresh oxygen around green plants but abundant carbon dioxides. So, it is not beneficial to get up before 6 am to do exercise.
If you want to have a happy and healthy summer holiday , I think the above four tips should not be forgotten to prevent summer diseases.
>China PCB manufacturer ? Explaining their work in a simple language
Posted by sheratonv on June 20th, 2016
Perhaps you have never thought of doing a PCB business. Maybe you need to learn more about this thing before you can approach a China pcb manufacturer. As well as meeting a manufacturer, you might need to get in touch with a dependable pcb prototyping expert to teach you. It is a good thing that you can find pcb experts on the internet when you want. PCB means Printed Circuit Board.
A Printed Circuit Board is fitted inside electronic appliances like computers, radios and telephones. So if you want to see them you can simply dismantle your computer or radio. It is a flat, slim and square slab that is mostly made of a green fiberglass material. All electrical components of a computer or another electronic device are attached to the pcb surface. Usually , there are copper elements that run below the green casing that are not easily detectable.
If you need to see them, you have to shine light on the pcb sheath and change your angles. The China pcb manufacturer or any other company prints copper wires on the fiberglass slab, connecting them in a way to form complete circuits. Eventually they create a slab that could be fixed in a given electronic device, allowing it to do the work it is made for. This is why the term ‘printed’ is used to describe a pcb. Although this might sound as an easy job, it is difficult.
A lot of knowledge and expertise are needed to do PCB prototyping and printing. And it seems that China has an industry that is full of experts who are producing enough pcb products for the whole world to use. Just before electrical engineers print the whole fiberglass slab with tiny copper wires , they must create a circuit design. In other words, they must come up with a diagram of how the circuit should function when completed. The diagram, also called schematic, consists of symbols that are connected with lines. Each line represents an electric item that will be connected to the slab with copper wires.
It could be a resistor, for instance , that is symbolized with a tiny zigzag line. The line symbolizes what an electronic component does. A resistor is for minimizing voltage, for instance. The electrical engineer fills their diagram with similar symbols so that they can do the printing work easily later on. The work of pcb prototyping is complicated and it has to be done by a real expert who knows what they are doing. Transforming a schematic into a complete printed circuit board requires a high degree of creativity and ability to come up with a logical pattern of components that would be attached later on.
Since technology has advanced so much now, this pattern that a designer of a pcb has to create is of the digital form. In other words, computers are being used to create prototypes that are later turned into complete products for sale. The China PCB manufacturer is a true professional artist when it comes to all this. The whole process of coming up with a pcb is comparable to the printing of books and other paper materials, although it is technically different.
We are the most famous china pcb manufacturer and supplier online. For pcb prototyping visit our website and order for us to chip for you quick and on time. You will not regret.