Phone and Health

Radio frequency electromagnetic fields of mobile phones and health

Introduction

In many places, mobile phones are an integral part of modern communication. This technique relies on radio frequency signals to pass, radio frequency electromagnetic fields (hereinafter referred to as "radio frequency electromagnetic fields") cause the transmission of the signal.

Are there health effects?

Mobile phone technology produced by the "radio frequency electromagnetic fields," a belonging to non-ionizing radiation, and X-rays, nuclear radiation, ionizing radiation is not the same. In simple terms, non-ionizing radiation energy is low, not enough to change the chemical nature of the substance, the body can not break chemical bonds harm.

Fresh Water and Health

The quality of potable water is a public health problem of global concern. Although water is an important element of life, but the water is also a channel of communication disorders. Whether poor countries or rich countries are not spared. Therefore, it is possible to enjoy a clean and safe water is not only a basic human need, is also a fundamental human right.

Potential health effects

Ultraviolet - UV

The sun's ultraviolet line
Sun, representing the warmth and vitality of filling. But you can know this but also an endless supply of hot fireball release different wavelengths of radiation, including we can not see, can not touch the UV light.

Ultraviolet light is an electromagnetic wave, according to their different wavelengths of ultraviolet light can be divided into A, B, C categories. All C and most UV-B ultraviolet light is absorbed by the atmosphere, ultraviolet light to reach the ground mostly UV-A and UV small part B.
UV line with our health

Benefits of UV lines

How to prevent high risk groups of food-borne diseases

What is a food-borne disease?

Classification of foodborne diseases

Refers to food-borne illness associated with the consumption of all food-related diseases, these diseases are usually caused by primary pathogenic bacteria such as Salmonella, but there are some food-borne pathogens, is wound through the skin when handling or cooking food invasion of the body, Vibrio vulnificus is one example. Persons who suffer from food-borne diseases, often suffer from abdominal pain, vomiting and diarrhea and other gastrointestinal symptoms sex, sometimes fever and other systemic symptoms. When the risk of food-borne diseases, healthy people usually mild symptoms, but some people easily infected, the disease will be more serious.

High risk groups

Temperature monitoring guidelines for prevention of human swine influenza

When the spread of human swine influenza in the community on a regular basis will help early detection of body temperature have fever and influenza-like illness with separate open as soon as possible. People, thereby effectively preventing the proliferation of human swine influenza type.

School

Because the school is a gathering place for many people in Hong Kong flu "severe strain" next level, parents can consider their children leave home every day before class, for them thermometer and record the temperature. While the local confirmed cases in the "emergency" level or under, the probe should be hot every day. School also independent, at a lower strain level, according to the situation to start action.

Agencies and offices

Temperature monitoring applications such as school principle.


Hospital

1. The patient (by hospital staff): At least once a day patient body temperature, in case of unusual circumstances collective infected, shall hospital Infection Control Group Report.
2. The staff (including contract staff): Every day should be body temperature, non-mandatory recording requirements. Directors and hospital infection control group should monitor the prevalence post number of members, to be vigilant of unusual circumstances collective infected.
3. Visitors: Recommendation should make their own body temperature, heat should not be used when hospital visitors.

Proper hand hygiene method

Many infectious diseases are spread through contact with. If your hands are contaminated with pathogens, particularly contact with feces or call. Respiratory tract secretions are not properly washed, it would be very easy to diseases such as dysentery, cholera, hepatitis, influenza, the spread of foot and mouth disease. Hand hygiene is a prerequisite to the prevention of infectious diseases. Wash hands thoroughly with liquid soap or use.

When should clean hands?

Diet and Nutrition

Introduction

Food is a source of calories and nutrients, it is an essential element to sustain life. Heat to support human activities, and nutrients is to grow and repair tissue, maintaining health and preventing disease is essential.

A balanced diet can lead to obesity or malnutrition or lack of certain nutrients, in turn increase the risk of many diseases such as heart disease, cerebrovascular disease, diabetes, high blood pressure and the risk of some cancers.

A balanced diet - eat healthy

With the change of lifestyle, eating more and more communities, diet content tend to high calorie, high fat, high sugar, resulting in children, adolescents and adults obese population growing prevalence of chronic diseases has continued to grow. Therefore preventive care has become the focus of health policy-driven twenty-first century. Health is wealth, the pursuit of health is necessary to start from the daily diet, so it should be how to eat more healthy?

    Nutrition is fundamentally healthy food is a source of nutrition, a balanced diet is the most important principle of maintaining health. The so-called balanced diet is a daily intake of food, enough to provide heat and a variety of essential nutrients, and to maintain bodily functions, and long-term health condition, help prevent chronic disease. In order to achieve the goal of a balanced diet, we must adequate but not excessive intake of six categories of food, not a partial eclipse.

    In accordance with the scientific knowledge of nutrition, according to the nutritional characteristics of the food which is divided into six categories, and according to an individual's nutrient needs, to the recommended daily intake of various types of food to have an eating pyramid, each Taiwan Japanese Food Guide Plum diagram to teach national healthy balanced diet should eat and how to eat servings a day. 

First we have to recognize six major food groups in order to illustrate the following point:

Injection Molding

In the industrial designers and engineers to design good mold after the injection mold manufacturing business of metal (typically steel or aluminum) in the next action precision instrument manufacturing mold desired traits.

Injection molds can produce tens of thousands of the same size, character and texture of parts, mold design and therefore must follow extremely strict manufacturing procedures.

Molten plastic under high pressure is injected into the mold, when the mold is cooled, liquid plastic cured, plastic parts to be produced. After the mold is opened, part ejected. When the mold is closed after the next injection can be produced.

Injection Moulding

Injection molding is a thermoplastic or thermosetting plastic molded in plastics to uniformly heat the cylinder, and then pushed by a plunger or screw to a method for moving a mold cavity in the closed molding.

What is Injection Mold?

Mold manufacturing

Injection mold is the production of plastic injection mold products mold in the injection molding machine, is the most common plastic mold. Its products are mainly used in: daily life, chemical, pharmaceutical, automotive, food packaging, instruments, building materials, decoration, electronics, aerospace and other fields.

Injection mold according to the structure can be divided into two and three-plate mold plate mold according thirst water into large inlet, outlet and hot water outlet points.