CATDOLL : CATDOLL: Feng Shui of fish breeding. March 15, 1983, working in a technology company, how many ornamental fish should be kept? Where should they be placed in the room?

1. Feng Shui of fish breeding. On March 15, 1983, working in a technology company, how many ornamental fish should be raised? Where should they be placed in the room?

According to Heluo numerology,

It is recommended that you choose a round or rectangular fish tank.

The number of fish to be raised should be one, six, eight, nine,

The location of the fish tank depends on the actual situation.

That is, the fish tank should be placed in an auspicious position.

When exactly were you born?

It has something to do with your birth date. Tell me and I'll check it for you.

2. Is it good if the light switch in the aquarium is touch-sensitive?

Hello friends, welcome to watch Zheng Futang Fish Tank

Today I’m going to talk about a high-end thing on the fish tank, the computer touch screen controller.

Many people may not know much about this thing, and it is usually only used in high-end fish tanks.

So what is the function of this computer touch screen controller? One is to control the light, one is to control the water pump, one is to control the oxygen pump, one is to control the temperature, one is to control the sterilization lamp, and one is to control the wave pump. This is the most advanced computer touch screen controller. The price cost of such a high-end controller is relatively high. Therefore, such a high-end controller is generally used in large tanks and is a bit more luxurious.

So are these effects useful?

If we only talk about the function, it is definitely not that practical. Because the current computer board is not so smart. But compared with the previous computer boards, it has made great progress. Some businesses have developed a computer board that can be controlled by mobile phones. You can use the software on the mobile phone to control the switch of lights and other electrical appliances.

This thing is like driverless cars. If cars can be driverless and have artificial intelligence, then they will lose their soul.

To enjoy the fun of raising fish you have to do it yourself.

High technology can be used as an aid. If you are not at home for something, you can still take care of the fish and keep them well. Once you get home, it is best to do it yourself, so that it is fun.

So is it worth spending so much money to buy it?

A good computer board costs hundreds of dollars, and one with software may be even more expensive. Merchants will inevitably add a price to consumers when they buy products.

To be honest, if you have already bought a fish tank worth over 10,000 yuan, it is still okay to buy one with a computer board. After all, you have already spent so much money, so you don’t need to spend a few hundred yuan to buy an extra luxury item.

If your budget is not that high, 3000/5000, it is recommended not to buy a computer board. Because as a business, the first thing to consider is profit. It costs a lot to add a good computer board to you, so you can imagine whether they will cut corners in other places.

Besides, low-end computer boards don’t have as many functions as I mentioned. Low-end ones can’t control many functions, and they still need to be operated manually, so adding a computer board is meaningless.

Is the computer board installed on the fish tank? If I buy a fish tank, can I install one myself later?

When it comes to installing computer boards, this is a job that requires a bit of technical skills.

First of all, we need to see where the computer board is installed. There are several common locations, one is the top edge of the fish tank, one is the bottom edge of the fish tank, and one is the side edge. These are the three common locations. Nowadays, there are many bottom filter fish tanks, and the top edge is generally chosen. The other two methods are not suitable for bottom filters.

So we want to modify and install it ourselves, is that possible?

It also depends on the material of the fish tank. If it is made of glass, it is recommended not to modify it as it will easily break. If it is made of aluminum alloy, it is still worth modifying. After all, the space of aluminum alloy is larger than that of glass. The upper edge of the aluminum alloy has reserved space for installing a computer board, so the installation will not be a big problem.

Use a pen to make a mark, and use an electric grinder to drill holes in the four corners to ensure that the angle grinder will not go off the track in the next step. Cut out the size of the computer board little by little and embed it inside.

The wires are usually routed through the aluminum alloy seam and into the fish tank. If you have to drill holes in the glass of the fish tank, it is quite dangerous and it is recommended not to do it.

Therefore, it is still feasible to modify the aluminum alloy fish tank into a computer board.

So can computer boards be used for solid wood carvings?

It is recommended not to put it there, as it looks too abrupt. It is really incompatible to put a computer board in a retro-style room.

Having said so much, how much do you know about computer boards?

3. Scientific and technological papers on the development and utilization of new energy

1. Research on wood bioenergy utilization technology

Liu Shouxin, Li Haichao, Zhang Shirun Literature from: China Forestry and Specialty Products 2001 Issue 03 caj download pdf download

Wood is the main body of bioenergy, and the research on wood bioenergy utilization technology has very important theoretical and practical significance. 1 Wood bioenergy Wood is the main body of bioenergy and it is the oldest energy material. Since the 1970s, many countries in the world have given...

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2. Strategic thinking on the development and utilization of renewable energy in my country in the future

Li Junfeng, Wang Zhongying, Liang Zhipeng, Shi Jingli Literature from: China Energy 2004 Issue 03 caj download pdf download

my country should also increase the development and utilization of renewable energy. 4.4 Good opportunities to open up new areas of economic growth The development and utilization of renewable energy mainly uses local resources and human and material resources, which is of great significance to promoting regional economic development. At the same time, the rapid development of renewable energy and new energy is also a new area of ​​economic growth. my country's solar water heaters...

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3. Research progress and development prospects of a new type of bioplastic (PHB)

Guo Xiujun, Yu Xin Literature from: Progress in Bioengineering 1997 Issue 05 caj download pdf download

Research progress and development prospects of a new type of bioplastic (PHB) Guo Xiujun Yu Xin (Department of Microbiology, Shandong University) Plastics, as high molecular polymers, have become an indispensable and important material in modern society. Plastic products play an important role in various sectors of the national economy. However, this type of chemically synthesized polymer cannot be biodegraded. So once...

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4. New energy and its development and utilization in the 21st century

Han Zhiping, Huo Wenlan Literature from: Journal of Yulin University 2003 No. 01 caj download pdf download

Including hydrogen energy, solar energy, biomass energy, wind energy, geothermal energy, ocean energy, etc., understanding their development and utilization status and prospects in the world is of great reference significance for my country's energy development and construction. [1] Department of Chemistry, Chinese Academy of Sciences, Prospects for Chemistry in the 21st Century [m] ...

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5. Energy development and utilization and energy conservation

Liang Rongguang, Jian Qifei, Weng Yibi, Xu Shisong Literature from: Internal Combustion Engines 2001 Issue 06 caj download pdf download

We should increase the development efforts in the future. Nuclear energy is a large, clean and cheap energy. Some industrially developed countries have developed and utilized it as a major energy source, such as Japan, which accounts for 25%. Taking Japan as an example, the price of using nuclear energy, coal, natural gas, and heavy oil to generate electricity for 1 kw? h is 1 2, ... Energy development and utilization and energy conservation @Liang Rongguang $ School of Transportation, South China University of Technology! Guangzhou, Guangdong 510640 @Jian Qifei $ School of Transportation, South China University of Technology...

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6. Development and application of bacterial magnetism in biotechnology

Ren Xiuhai Literature from: Journal of Biology 1995 Issue 01 caj download pdf download

This makes it possible to transfer the relevant genes or genomes to other bacteria or higher plants and animals for larger-scale biomagnetic production, thereby promoting further development and utilization of bacterial magnetism biotechnology development and utilization @ Ren Xiuhai $ Shanghai University Department of Bioengineering...

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7. Current status of energy plant resources and their development and utilization at home and abroad

Energy is the material basis of human activities. In a sense, the development of human society is inseparable from the emergence of high-quality energy and the use of advanced energy technology. In today's world, energy development, energy and the environment are issues of common concern to the world and all mankind, and are also important issues in my country's social and economic development.

In the past, people rarely talked about the term "energy". It was the two oil crises that made it a hot topic. Energy is the most basic driving force for the development and economic growth of the entire world and the foundation for human survival. Since the Industrial Revolution, energy security issues have begun to emerge. With the rapid development of the global economy today, international energy security has risen to the level of the country. All countries have formulated energy policies with energy supply security as the core. In the following two decades, with the support of stable energy supply, the scale of the world economy has achieved a large growth. However, while enjoying the benefits of economic development, scientific and technological progress brought by energy, mankind has also encountered a series of unavoidable energy security challenges. Energy shortages, resource competition, and environmental pollution caused by excessive use of energy threaten human survival and development.

So, what exactly is "energy"? There are about 20 definitions of energy. For example, the Encyclopedia of Science and Technology says: "Energy is a resource from which energy such as heat, light and power can be obtained"; the Encyclopedia Britannica says: "Energy is a term that includes all fuels, running water, sunlight and wind. Humans can use appropriate conversion methods to make it provide the energy they need"; the Encyclopedia of Japan says: "In various production activities, we use heat energy, mechanical energy, light energy, electrical energy, etc. to do work. Various carriers in nature that can be used as sources of these energies are called energy"; my country's Encyclopedia of Energy says: "Energy is an energy carrier resource that can directly or through conversion provide any form of energy such as light, heat, power, etc. that humans need." It can be seen that energy is a source of energy in various forms that can be converted into each other.

To put it simply and precisely, energy is a material resource in nature that can provide humans with some form of energy.

Generally speaking, any source that can be used by humans to obtain useful energy can be called energy.

Energy is also called energy resources or energy resources. It is a general term for substances that can generate various energies (such as heat, electricity, light energy and mechanical energy) or can do work. It refers to various resources that can be directly obtained or processed and converted to obtain useful energy, including primary energy such as coal, crude oil, natural gas, coalbed methane, hydropower, nuclear energy, wind energy, solar energy, geothermal energy, biomass energy, and secondary energy such as electricity, heat, and refined oil, as well as other new energy and renewable energy.

Classification

There are many types of energy, and after continuous development and research by humans, more new energy sources have begun to meet human needs. According to different classification methods, energy can also be divided into different types.

1. It is divided into three categories according to the source: The energy contained in the earth itself usually refers to the energy related to the thermal energy inside the earth and the energy related to nuclear reactions.

① Energy from celestial bodies outside the earth (mainly solar energy). In addition to direct radiation, it also provides the basis for the generation of wind energy, hydropower, biomass energy and mineral energy. Most of the energy needed by humans comes directly or indirectly from the sun. It is various plants that convert solar energy into chemical energy through photosynthesis and store it in the plant body. Fossil fuels such as coal, oil, and natural gas are also formed by ancient plants and animals buried underground over a long geological period. They are essentially solar energy fixed by ancient organisms. In addition, hydropower, wind power, wave energy, ocean current energy, etc. are also converted from solar energy.

② The energy contained in the earth itself, such as nuclear energy, geothermal energy, etc.

③Energy generated by the interaction between the earth and other celestial bodies. Such as tidal energy. Hot springs and magma ejected from volcanic eruptions are manifestations of geothermal energy. The earth can be divided into three layers: crust, mantle and core. It is a large heat reservoir. The crust is a layer on the surface of the earth, generally ranging from a few kilometers to 70 kilometers thick. Below the crust is the mantle, which is mostly molten magma with a thickness of 2,900 kilometers. Volcanic eruptions are generally caused by the eruption of this part of magma. The interior of the earth is the core, and the temperature at the center of the core is 2,000 degrees. It can be seen that the geothermal resources on the earth are also very large.

2. According to the basic form of energy, there are primary energy and secondary energy. The former is natural energy, which refers to the energy that exists in nature.

New energy is relative to conventional energy, and includes nuclear energy, solar energy, wind energy, biomass energy, hydrogen energy, geothermal energy, tidal energy, etc. The common feature of new energy is that it is relatively clean and, except for nuclear fission fuel, it is almost inexhaustible. Since conventional energy such as coal, oil and gas have the disadvantages of polluting the environment and being non-renewable, humans are paying more and more attention to the development and utilization of new energy.

(1) Nuclear energy technology. Nuclear energy includes nuclear fission energy and nuclear fusion energy. Nuclear fission energy refers to the energy released when the nuclei of heavy elements (such as uranium and thorium) split, and is usually called atomic energy. Nuclear fusion energy refers to the energy released when the nuclei of light elements (such as deuterium and tritium) fuse. The large amount of heat energy generated by nuclear energy can be used to generate electricity and provide heat. The biggest advantage of nuclear energy is that it does not pollute the air, has a large concentrated production volume, and can replace coal, oil and natural gas fuels. ① Nuclear fission technology. Since the world's first atomic power plant was built in 1954, more than 20 countries around the world have built more than 400 nuclear power plants, accounting for 16% of the world's power generation. The first nuclear power plant designed and built by my country itself is the 300,000-kilowatt Qinshan Nuclear Power Plant in Zhejiang; the 1.8 million-kilowatt Daya Bay Nuclear Power Plant in Guangdong was built with imported technology. The difference between a nuclear power plant and a conventional thermal power plant is that a nuclear reactor replaces a boiler. Nuclear reactors are divided into thermal neutron reactors and fast neutron reactors according to the different neutrons that cause fission. Since thermal neutron reactors are easier to control, they are widely used. According to the different moderators, coolants and nuclear fuels, thermal neutron reactors include light water reactors (light water is used as moderator and coolant, and enriched uranium is used as fuel, including pressurized water reactors and boiling water reactors), heavy water reactors (heavy water is moderated and cooled, and natural uranium is used as fuel), graphite gas-cooled reactors (graphite is moderated, carbon dioxide or helium is cooled, and enriched uranium is used as fuel), and graphite graphite-cooled reactors (graphite is moderated, light water is cooled, and enriched auranium is used as fuel). These reactor types have their own advantages, and light water reactors are generally used more. The advantage of fast neutron reactors is that they can make full use of natural uranium resources. Thermal neutron reactors can only use about 2% of uranium in natural uranium, while fast neutron breeder reactors can use more than 60%. This type of reactor is still undergoing commercial-scale demonstration tests. ② Nuclear fusion technology, which is the fusion of two or more light atomic nuclei at extremely high temperatures, is called thermonuclear reaction. Since the fusion nuclear fuel deuterium is abundant in seawater, it is almost inexhaustible for human use. Therefore, countries around the world attach great importance to it. It can be said that nuclear fusion energy is the energy guarantee for the eternal development of mankind in the world.

(2) Solar energy technology. ① Solar thermal utilization technology is relatively mature, including solar water heaters, solar boilers for steam power generation, solar refrigeration, solar focusing high-temperature processing, solar cookers, etc., which are widely used in industry and civil applications; ② Solar photovoltaic conversion technology, which converts light energy into electrical energy (direct current) through solar photovoltaic cells, mainly photovoltaic cell manufacturing technology. Solar cells include single crystal silicon, polycrystalline silicon, amorphous silicon, cadmium sulfide and zinc arsenide cells. This power generation technology is the most convenient, but the cost of high-power power generation is too high. ③ Photochemical conversion technology, which uses solar photochemical cells to electrolyze and separate water to produce hydrogen, which is a very clean fuel.

(3) Wind energy technology. Wind energy is a kind of mechanical energy, and wind power generation is a common technology. Currently, the world's largest wind turbine is 3,200 kilowatts, with a wind turbine diameter of 97.5 meters, installed in Hawaii, USA. my country's total installed wind power capacity is 200,000 kilowatts, and the largest wind turbine is 120 kilowatts.

(4) Biomass energy technology. This is a technology that utilizes organic waste from animals and plants (such as wood, firewood, feces, etc.). ① Thermochemical conversion technology, which converts waste such as wood into coal gas through a gasifier, or converts biomass into coal gas, tar and charcoal through dry distillation; ② Biochemical conversion technology, which mainly converts biomass such as feces into biogas through anaerobic fermentation in a biogas tank. The main component of biogas is methane. Biogas technology has been well applied in rural areas of my country, and industrial biogas technology has also begun to be applied. ③ Biomass briquetting technology, which squeezes and shapes the dried and crushed biomass into high-density solid fuel.

(5) Hydrogen energy technology. Hydrogen has a high calorific value and its combustion product is water, which is completely pollution-free. Moreover, the main raw material for hydrogen production is also water, which is inexhaustible. Therefore, hydrogen energy is a clean fuel with broad prospects. ① Hydrogen production technology, including water electrolysis, hydrothermal chemical hydrogen production, water photocell decomposition, etc.; ② Hydrogen storage and transportation technology, there are three ways to store hydrogen, one is compression, the second is low-temperature liquefaction, and the third is hydrogen storage metal absorption. ③ Hydrogen utilization technology, there are three ways to utilize it, one is direct combustion as fuel, the second is direct power generation through hydrogen fuel cells, and the third is used as an intermediate medium for various energy conversions.

(6) Geothermal energy technology. Geothermal energy includes steam and hot water. Geothermal steam has a high pressure and temperature and can be used directly to generate electricity through steam turbines; geothermal hot water is best used in a cascade manner, first using high-temperature geothermal water for high-temperature purposes, then using the used medium-temperature geothermal water for medium-temperature purposes, and then reusing the used low-temperature water, and finally using it for fish farming, swimming pools, etc. (Table 13-6).

(7) Tidal power technology. Tidal power generation technology is a low-head hydropower technology with small capacity and high cost. my country has a coastline of 14,000 kilometers and is rich in tidal energy. It is estimated that the country's utilizable tidal power generation capacity is 28 million kilowatts, with an annual power generation of 70 billion kilowatt-hours. Source: www.daixielunwen010.com