据国外媒体报道，黑洞作为宇宙中奇特的天体，我们通过认为它们不会发生与超新星爆发类似的物质抛射事件，更多时候认为黑洞可以吞噬一切，物质落入事件视界并形成可视的吸积盘，但有时
In comparison with conventional radiotherapy techniques,12C beam therapy has its significant advantage in cancer treatment because the radiation dose are mostly
Tumor cells often develop resistance to radiotherapy by fractionated radiation possibly due to the heterogeneity and hypoxia in tumor tissue.However,the mechani
Epidermal growth factor receptor (EGFR) plays a critical role in proliferation, apoptosis, angiogenesis, invasiveness and distant metastasis of tumors. In this
<正>The neutron response function and detection efficiency of a spherical proton recoil proportional counter (SP) play key roles in precise measurement of neutr
Technetium-99m-labeled-5-{2-sulfanylethyl-[2-(2-sulfanylethylamino)acetyl]amino}-methyl-2′-deoxy- uridine (99mTc-ANMdU) was reported. The precursor ANMdU was s
本文以水曲柳落叶松混交林、水曲柳人工林和落叶松人工林为对象，研究比较了三种林型的林下植物多样性。
腾讯科学讯（悠悠／编译）据英国每日邮报报道，一种新型“教学手套”可以下栽著名网球球星的动作，教授人们如何模仿练习，有助成为未来的温布尔顿网球明星。
用微波消解-重铬酸钾法检测危险废物填埋场渗滤液,在选定的检测条件下,本方法的重现性极佳（相对标准偏差0.35%）,加标回收率为95.67%~100.08%。
图像监控技术及其在电力系统中的应用正逐步发展,针对这项技术在无人值班变电站和应用特点进行了分析,介绍了在图像监控系统,视频监控,视频编解码,图像分割,视频监控等主要部分组成,信息处理,传输和外围系统的访问和其他相关手段作一比较,根据工程设计与施工的实践经验,指出存在的问题,应注意的问题。