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英検準1級要約テクノロジー
Traffic lights usually follow fixed schedules, even when the number of vehicles changes greatly during the day. This can make drivers wait at empty intersections while long lines form elsewhere. To address this problem, more cities are introducing AI traffic lights. These systems use cameras and road sensors to study current traffic and change signal timing automatically.
60〜70語 · プリントあり
英検準1級要約テクノロジー
Flooding can develop quickly when heavy rain causes rivers to rise. Traditional forecasts rely on weather information, water measurements, and maps, but it can be difficult to understand how these factors will affect every part of a river. In response, digital models that reproduce rivers in virtual space are beginning to be used by local authorities and researchers responsible for disaster planning.
60〜70語 · プリントあり
英検準1級要約テクノロジー
Electric vehicles contain large batteries that are usually charged from the electricity network. Vehicle-to-grid technology, known as V2G, allows some of this stored electricity to flow back into the network when it is urgently needed. Interest in the system is rapidly growing as more electric vehicles and renewable energy sources are connected to modern power grids in cities.
60〜70語 · プリントあり
英検準1級要約テクノロジー
Farmers must remove weeds because they compete with crops for water and nutrients. However, weeding is demanding as it requires a lot of physical work. One new method to reduce this burden is to use robots equipped with artificial intelligence (AI). As the robots move through fields, the AI compares images of plants and decides which ones are weeds. The machines then pull out those plants or spray them with a small amount of weed killer.
60〜70語 · プリントあり
英検準1級要約テクノロジー
Counting wild animals is important for understanding changes in ecosystems and protecting species. Traditionally, researchers have observed animals directly or used traps and tracking devices to collect information. Recently, some projects have begun using artificial intelligence (AI) together with cameras. These systems examine recorded images and automatically identify animals, helping researchers estimate how many individuals of each species live in an area.
60〜70語 · プリントあり
英検準1級要約テクノロジー
Fish at aquaculture farms must receive the right amount of food at suitable times. If workers provide too little, the fish may grow slowly. If they provide too much, uneaten food sinks and pollutes the water. Careful timing can be difficult to achieve consistently by hand. Automatic feeding systems are now being introduced. Sensors and cameras observe the fish, while computer programs decide when and how much food to release into each part of the farm.
60〜70語 · プリントあり
英検準1級要約テクノロジー
Data centers use large amounts of electricity to operate computers and keep equipment cool. During this process, a significant amount of heat is produced and usually released into the surrounding environment. Recently, some companies and local governments have begun using this waste heat for other purposes. Pipes can carry the heat to nearby buildings or facilities, where it may be used for heating water or indoor spaces.
60〜70語 · プリントあり
英検準1級要約テクノロジー
Streetlights are often kept on at full brightness throughout the night, even when roads and paths are empty. Some local governments are installing motion sensors on lights to change this pattern. The lamps remain dim when no movement is detected and become brighter when a pedestrian, bicycle, or vehicle approaches. After the person or vehicle passes, the lights return to a lower level.
60〜70語 · プリントあり
英検準1級要約テクノロジー
Electricity is carried over long distances by transmission lines supported by tall towers. These lines must be checked regularly for broken parts, loose connections, or damage caused by storms. Traditionally, workers inspect them from the ground, climb towers, or use helicopters. Some power companies now send drones with cameras and other sensors along the lines to collect detailed images for later examination by engineers.
60〜70語 · プリントあり
英検準1級要約テクノロジー
Most houses are built by workers who assemble wood, bricks, concrete, and other materials at a construction site. A newer method uses a large 3D printer. The machine follows a digital design and places layers of building material to form walls. Workers later add roofs, windows, pipes, wiring, and other parts that the printer does not produce.
60〜70語 · プリントあり
英検準1級要約テクノロジー
Gene editing is a technology that changes selected parts of an organism's genetic information. Unlike genetic modification, it can alter particular characteristics without introducing genes from another species. Researchers are applying this method to crops and other foods in order to change features such as growth, shape, or nutritional content. Some gene-edited foods are already being developed for farming and commercial use.
60〜70語 · プリントあり
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