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植物入侵的影响会随时间减弱
2023-12-06Among the most impressive ecological findings of the past 25 years is the ability of invasive plants to radically change ecosystem function. Yet few i...
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磁纳米粒子能加快热传递
2023-12-06Cooling systems generally rely on water pumped through pipes to remove unwanted heat. Now, researchers at MIT and in Australia have found a way of enh...
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用CT扫描与3D打印机制作恐龙骨骼
2023-12-06Data from computed tomography (CT) scans can be used with three-dimensional (3-D) printers to make accurate copies of fossilized bones, according to n...
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西伯利亚人可能是美洲印第安人后裔
2023-12-06The genome sequence of a 24,000-year-old Siberian individual has provided a key piece of the puzzle in the quest for Native American origins. The anci...
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新式模型技术或将淘汰工程样品模式
2023-12-06A new modelling technique has been developed that could eliminate the need to build costly prototypes(原型), which are used to test engineering structur...
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2013全球碳排放将达360亿吨
2023-12-06Global emissions of carbon dioxide from burning fossil fuels are set to rise again in 2013, reaching a record high of 36 billion tonnes - according to...
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核形变过程中的神奇数字
2023-12-06A team of researchers from the RIKEN Nishina Center for Accelerator-Based Science in Japan has demonstrated that the magic numbers 20 and 28 disappear...
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大规模制造金纳米棒的技术得以完善
2023-12-06North Carolina State University researchers have developed a technique for efficiently producing nanoscale gold rods in large quantities while simulta...
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LED光源对莴苣生长的影响
2023-12-06In the life cycle of plants, most developmental processes are dependent on light. Significant biological processes such as germination(发芽), shade avoi...
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鉴定热带冰川中冰碛石年龄的准确方法
2023-12-06A Dartmouth-led team has found a more accurate method to determine the ages of boulders(岩石) deposited by tropical glaciers, findings that will likely ...