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刷新全球纪录! 超重力实验装置启动核心设备
Ren Min Wang· 2025-10-05 01:43
【瞧我们的前沿科技】 在浙江杭州城西科创大走廊腹地距地面15米的地下大厅内,一台粗长的旋臂缓缓启动,逐渐提速。末端 的实验舱内,300个g(常重力)的惊人加速度正让物质的运动以"一眼万年"的速度展开。伴随轰鸣声传 来,浙江省首个国家大科学装置——超重力离心模拟与实验装置(以下简称"CHIEF")核心设备近日正 式启动。 由浙江大学牵头建设的CHIEF被《物理世界》杂志评价为"全世界能力最强的离心机"。如今率先开机运 行的CHIEF1300容量达到1300g·t(重力加速度·吨),刷新了全球纪录。 这一"超级机器"的诞生并不容易。超高速运转、更长的机械臂、更极端的工况,意味着没有现成经验可 循。为了保障设备安全运行,研发团队跨学科协作,从结构体系、真空密封、动态平衡到材料工艺均 需"破题"。"这台机器的每一次转动,都凝结着数百位科研人员的心血。"项目团队成员感慨道。浙江大 学多学科平台会聚了来自建筑工程、控制、软件、能源、材料等领域的科学家和工程师,他们用跨界智 慧为CHIEF的复杂系统提供了新的解法。 随着CHIEF核心设备的启用,18套自主研制的机载实验装置一并亮相。其中6台为国际首创,12台达到 国际领先 ...
超重力实验装置核心设备启动
Ke Ji Ri Bao· 2025-09-30 01:30
Core Insights - The CHIEF facility, a major national scientific infrastructure, has launched its first centrifuge in Hangzhou, Zhejiang Province, which can simulate artificial gravity fields hundreds to thousands of times that of Earth's gravity [1][2] - This facility aims to support research in disaster prevention, resource development, underground space utilization, new material development, and geological processes [1] Group 1 - The CHIEF facility includes three main centrifuges: CHIEF1300, CHIEF1500, and CHIEF1900, along with 18 onboard devices across six experimental chambers [1][2] - CHIEF1300 has a capacity of 1300 g·t and is currently the largest centrifuge globally, achieving a maximum centrifugal acceleration of 300 g [2] - The facility is designed to simulate geological and environmental processes over extensive time scales, allowing for the study of phenomena that would typically take decades or centuries [2] Group 2 - The CHIEF project is led by Zhejiang University and aims to create an open and collaborative international research platform [2] - The facility is expected to enhance global scientific research and innovation by facilitating cooperation with top research teams worldwide [2] - The construction of CHIEF1500 and CHIEF1900 is ongoing, with completion expected by the end of 2025 [2]
新华鲜报|世界最大!我国超重力实验装置启动核心设备
Xin Hua She· 2025-09-29 03:44
超重力离心模拟与实验装置由浙江大学牵头建设,包括三台离心机主机,以及边坡与高坝、岩土地震工 程、深海工程、深地工程与环境、地质过程、材料制备等六座实验舱的18台机载装置。 本次启动的首台离心机"CHIEF1300"容量为1300g·t(重力加速度·吨),是目前世界上容量最大的离心 机。此外,容量为1500g·t和1900g·t的两台离心机"CHIEF1500"和"CHIEF1900"正在紧锣密鼓地安装建设 中。 为什么要建设超重力离心模拟与实验装置? 地球重力场的加速度约为9.8米/平方秒,称为常重力场,超过这个数值就称为超重力场。例如坐过山 车时人承受的最大加速度会达到常重力的2倍,航天器发射时加速度可达常重力的4至5倍,太阳上的重 力场是常重力的28倍,而超重力离心模拟与实验装置离心机主机的超重力最大将达到常重力的1500倍。 新华社杭州9月29日电 题:世界最大!我国超重力实验装置启动核心设备 新华社记者朱涵、宋晨 29日,国家重大科技基础设施——超重力离心模拟与实验装置在浙江杭州启动首台离心机主机。该设施 将营造超过地球重力千百倍的"超重力场",实现"时空压缩"效应,为一系列研究提供关键支撑。 工作时 ...
小型成像系统可实时观测小鼠大脑活动
Huan Qiu Wang Zi Xun· 2025-09-17 02:56
Core Insights - A research team from the University of California, Davis has developed a small imaging system called "DeepInMiniscope" that allows for high-resolution, non-invasive real-time observation of brain activity in mice [1][2] - The system is expected to open new pathways for neuroscience research and facilitate the development of new therapies for brain diseases [1] Group 1: Technology and Innovation - The DeepInMiniscope utilizes a novel mask design that integrates over 100 micro high-resolution lenses, employing neural networks to combine images from these lenses to reconstruct high-quality 3D images [1] - The neural network incorporates various machine learning methods to quickly and accurately restore fine structures in a larger 3D space [2] Group 2: Size and Usability - The new microscope measures only 3 square centimeters, approximately the size of a grape, and weighs about 10 grams, making it significantly smaller than previous devices [2] - Its ergonomic design allows for comfortable and safe use by mice during free movement, enhancing usability in behavioral studies [2] Group 3: Future Goals - The ultimate goal of the research is to develop a wireless device that is only 2 square centimeters in size, aimed at deepening the understanding of brain information processing and behavior mechanisms, as well as advancing the recognition and treatment strategies for brain diseases [2]
“一箱式”方法同时测量三种电单位
Ke Ji Ri Bao· 2025-08-24 23:37
Core Insights - The National Institute of Standards and Technology (NIST) has developed a quantum device capable of simultaneously measuring current, resistance, and voltage within a single system, potentially simplifying quantum electrical standards operations and reducing research costs [1][2]. Group 1: Device Functionality - The new "one-box" measurement method allows for the integration of two quantum standards that traditionally required separate devices, which is a significant challenge due to the reliance on fragile quantum phenomena observable only at very low temperatures [1]. - The device utilizes a novel material that enables quantum properties to be achieved without the need for a magnetic field, allowing both quantum systems to operate simultaneously within the same low-temperature refrigerator [1]. Group 2: Measurement Accuracy - The team successfully obtained measurements for amperes, ohms, and volts with an error margin of only one millionth, showcasing the precision of the new device [1]. Group 3: Cost and Accessibility - This device is expected to lower the costs associated with using quantum electrical standards and make it more convenient for researchers worldwide to utilize [2].
1103万!Thermo Scientific等中标郑州大学仪器采购项目
仪器信息网· 2025-08-09 04:04
Group 1 - The core viewpoint of the article highlights the successful bid by Thermo Scientific for the procurement project of X-ray photoelectron spectrometer and other scientific equipment for Zhengzhou University, with a total bid amount of 11.03 million [1] Group 2 - Project basic information includes the procurement project number: Yu Cai Bidding Procurement-2025-698, and the project name: Zhengzhou University Asset and Finance Department X-ray Photoelectron Spectrometer and other scientific equipment procurement project [1] - The procurement method is public bidding, with the announcement date on July 14, 2025, and the evaluation date set for August 4, 2025 [1] Group 3 - The procurement content consists of two packages: Package One includes one set of X-ray photoelectron spectrometer, and Package Two includes one set of continuous wave electron paramagnetic resonance spectrometer, along with associated services such as installation, debugging, acceptance, training, and warranty services [1] - The delivery period is 300 calendar days from the effective date of the contract, with the delivery location specified by the purchaser [1] - Quality standards require compliance with national and industry regulations, with warranty periods of 5 years for Package One and 3 years for Package Two [1] Group 4 - The project does not accept joint bids and does accept imported products, but it is not specifically aimed at small and medium-sized enterprises [1]