Self-introduction.Hello everyone, my name is Nobuho Sugita. Nice to meet you.
I am from Sabae. Sabae special products are glasses. My characteristic is this body type. My height is 170 cm, but my weight is about 90 kg. Furthermore, the body fat percentage is about 30%. Therefore, I am called "Debumegane" from my friends. I am the member of Material design laboratory. This laboratory is studying about fibers. My study is Fabrication of three-dimensional alumina nano fibers structure by Freeze drying method. This method is very simple and clean. So this method is used to make instant food, which including space food, cup noodle and frozen food. I would like to complete this research graduation. I like eating very much. Among them, I feel happy especially by eating ramen. There are various kinds of ramen. By changing the taste and the thickness of noodles etc, we make many kinds. For example tonkotu, syouyu, miso, sio, gyokai, toripitan and so on. My favorite ramen is tonkotu. This is so delicious. My hobby is swimming. I have been swimming for ten years. I have participated in the Hokusinetu cup. Only the medalist of the prefectural cup can participate in Hokusinetu cup. In other words, I am a good swimmer. Thank you. |
My research.
My research theme is the construction of a three-dimensional aluminate fiber structure using the freeze-drying method.
Alumina (Al 2 O 3 aluminum oxide) is stable both in terms of physical properties and manufacturing technology, and is also inexpensive, so it is widely used in industry. Its properties include (1) chemical stability, (2) high hardness, (3) excellent electrical insulation, and the like. Further, since γ-alumina has a high specific surface area and α-alumina is excellent in heat resistance and thermal conductivity, it is used as a catalyst or a catalyst carrier.
The catalyst carrier is a substance that shows catalytic activity and serves as a base for fixing other substances. In addition, it is desirable that the carrier is chemically stable and does not inhibit the intended operation. Although the catalyst is advantageous in the form of a fine powder in the form of a specific surface area and a large number of active sites per mass as compared with those in the form of granules or lumps, it has a drawback that handling is difficult. Therefore, it is necessary to fix the powdery catalyst alone. In this experiment, attention was focused on three-dimensional nanofiber formation as a shape of this catalyst carrier aiming at high specific surface area and high porosity.
When preparing nanofibers of inorganic components such as alumina, the precursor method is often used. In this method, first, a precursor nanofiber in which an inorganic component and an organic component are combined is prepared, heat treatment is applied to the precursor, and the organic component is thermally decomposed to obtain nanofibers of an inorganic component. Conventionally, the electrospinning method was used as a method of preparing this precursor nanofiber [3]. The electrospinning method is a method of pulling a polymer solution with electrostatic force to obtain ultrafine fibers. However, with this method, only two-dimensional nonwoven fabric can be produced, so there was a form that could not be dealt with. Therefore, by three-dimensionally converting the nanofibers, it becomes possible to deal with more various forms, and since the intervals among the fibers can be widened, it is also expected to increase the porosity.
Therefore, in this experiment, the purpose was to prepare three-dimensional alumina nanostructures using the freeze drying method.
Alumina (Al 2 O 3 aluminum oxide) is stable both in terms of physical properties and manufacturing technology, and is also inexpensive, so it is widely used in industry. Its properties include (1) chemical stability, (2) high hardness, (3) excellent electrical insulation, and the like. Further, since γ-alumina has a high specific surface area and α-alumina is excellent in heat resistance and thermal conductivity, it is used as a catalyst or a catalyst carrier.
The catalyst carrier is a substance that shows catalytic activity and serves as a base for fixing other substances. In addition, it is desirable that the carrier is chemically stable and does not inhibit the intended operation. Although the catalyst is advantageous in the form of a fine powder in the form of a specific surface area and a large number of active sites per mass as compared with those in the form of granules or lumps, it has a drawback that handling is difficult. Therefore, it is necessary to fix the powdery catalyst alone. In this experiment, attention was focused on three-dimensional nanofiber formation as a shape of this catalyst carrier aiming at high specific surface area and high porosity.
When preparing nanofibers of inorganic components such as alumina, the precursor method is often used. In this method, first, a precursor nanofiber in which an inorganic component and an organic component are combined is prepared, heat treatment is applied to the precursor, and the organic component is thermally decomposed to obtain nanofibers of an inorganic component. Conventionally, the electrospinning method was used as a method of preparing this precursor nanofiber [3]. The electrospinning method is a method of pulling a polymer solution with electrostatic force to obtain ultrafine fibers. However, with this method, only two-dimensional nonwoven fabric can be produced, so there was a form that could not be dealt with. Therefore, by three-dimensionally converting the nanofibers, it becomes possible to deal with more various forms, and since the intervals among the fibers can be widened, it is also expected to increase the porosity.
Therefore, in this experiment, the purpose was to prepare three-dimensional alumina nanostructures using the freeze drying method.
Problems in Japan.
Japan's food self-sufficiency rate is very low compared with the countries of the world. As for the countries' self-sufficiency rates in the world, 258% in Canada, 205% in Australia, 129% in France, 127% in the United States, 92% in Germany, 72% in the UK. In comparison, Japan's food self-sufficiency rate is 39%. In the Showa 40 year, the food self-sufficiency rate in Japan was 73%, but since then it has fallen to 39% for about 50 years. By item, 97% of rice, 13% of barley, 9% of potatoes, 78% of potatoes, 10% of beans, 80% of vegetables, 43% of fruits, 55% of meat, 55% of eggs, 95% of eggs, 63% of dairy products, 54%, seaweeds 66%, sugar 31%, oils and fats 13%, mushrooms 87%.
One of the causes is in our diet. In 1953, he was sending a diet that eats a lot of fish and vegetables, mainly on rice which is a staple food. However, as society evolved, dietary eating rapidly advanced. The amount of rice to eat which can be made in Japan is reduced, and I have eaten a lot of meat, dairy products, livestock products such as eggs and fats and oils. Since raw materials for domestic animals and raw materials for fats and oils can not be made in large quantities in Japan, it is thought that food self-sufficiency rate has decreased since imports have to be made. There are various problems due to low food self-sufficiency rate. For example, the securing of our food is likely to be affected by the weather and food problems around the world, and there is a risk that it will be insufficient. Then the price of food will become unstable and become easy to rise. Also, if other countries stop to export food for some reason and export to Japan stops, our diet will suffer great influence. If you are using food from foreign countries like this, there is a danger of causing serious problems. As a solution, there is no other way than simply raising self-sufficiency. For that, it is important to change the consciousness of all the citizens. The actions of each of us will be the power to increase consumption of domestic agricultural, forestry and fishery products and increase food self-sufficiency rate.
One of the causes is in our diet. In 1953, he was sending a diet that eats a lot of fish and vegetables, mainly on rice which is a staple food. However, as society evolved, dietary eating rapidly advanced. The amount of rice to eat which can be made in Japan is reduced, and I have eaten a lot of meat, dairy products, livestock products such as eggs and fats and oils. Since raw materials for domestic animals and raw materials for fats and oils can not be made in large quantities in Japan, it is thought that food self-sufficiency rate has decreased since imports have to be made. There are various problems due to low food self-sufficiency rate. For example, the securing of our food is likely to be affected by the weather and food problems around the world, and there is a risk that it will be insufficient. Then the price of food will become unstable and become easy to rise. Also, if other countries stop to export food for some reason and export to Japan stops, our diet will suffer great influence. If you are using food from foreign countries like this, there is a danger of causing serious problems. As a solution, there is no other way than simply raising self-sufficiency. For that, it is important to change the consciousness of all the citizens. The actions of each of us will be the power to increase consumption of domestic agricultural, forestry and fishery products and increase food self-sufficiency rate.
An objection to Mr.Nakayama Namiki
I think that it is important to increase aid when giving birth to a child rather than a way to promote marriage such as increasing marriage to increase the population of Japan. You will not necessarily give birth to a child when you get married. Data are reported that there are many families who can not give children for economic reasons even if they get married. In fact, it is said that it is said that it costs up to 25 million yen for high school graduates and 30 million to 35 million yen for university graduates, by matching support and education expenses on average on average until one child becomes independent. However, in the current Japanese system, it is 15000 yen a month from 0 to 3 months old monthly, from 3 years old to 10,000 yen (first child, second child) or 15,000 yen (after the third child) before graduating from primary school, 10,000 in junior high school students Only yen is subsidized.
Even if totaling it will be calculated only about 2 million yen subsidy. At this amount only 10% of the child support expenses are subsidized. I believe that this is the cause of Japan's declining population.
As a solution to that, I think that it is important to increase the amount of subsidies when children are made. In many countries in the world, there are many countries with much support for child rearing support compared with Japan. For example, European education expenses are cheaply cheaper than Japan, and some countries do not need educational expenses at all. In the UK, Germany, France, Finland and Sweden, there is no education fee at all in the compulsory education period until the end of the high school. Compulsory education here is not a tuition fee, but from the textbook the cost including all pencils, notes, meal fee etc. means free. I believe that introducing such a system into Japan will reduce the burden of raising children and will make it a country that is easy for children to live. I believe that this solution will increase the population of Japan.
Even if totaling it will be calculated only about 2 million yen subsidy. At this amount only 10% of the child support expenses are subsidized. I believe that this is the cause of Japan's declining population.
As a solution to that, I think that it is important to increase the amount of subsidies when children are made. In many countries in the world, there are many countries with much support for child rearing support compared with Japan. For example, European education expenses are cheaply cheaper than Japan, and some countries do not need educational expenses at all. In the UK, Germany, France, Finland and Sweden, there is no education fee at all in the compulsory education period until the end of the high school. Compulsory education here is not a tuition fee, but from the textbook the cost including all pencils, notes, meal fee etc. means free. I believe that introducing such a system into Japan will reduce the burden of raising children and will make it a country that is easy for children to live. I believe that this solution will increase the population of Japan.