Minute book no. 2, PMU, 1917-1922
收藏Materials Project 在线材料数据库
Materials Project 是一个由伯克利加州大学和劳伦斯伯克利国家实验室于 2011 年共同发起的大型开放式在线材料数据库。这个项目的目标是利用高通量第一性原理计算,为超过百万种无机材料提供全面的性能数据、结构信息和计算模拟结果,以此加速新材料的发现和创新过程。数据库中的数据不仅包括晶体结构和能量特性,还涵盖了电子结构和热力学性质等详尽信息,为研究人员提供了丰富的材料数据资源。相关论文成果为「Commentary: The Materials Project: A materials genome approach to accelerating materials innovation」。
超神经 收录
中国1km分辨率逐月降水量数据集(1901-2023)
该数据集为中国逐月降水量数据,空间分辨率为0.0083333°(约1km),时间为1901.1-2023.12。数据格式为NETCDF,即.nc格式。该数据集是根据CRU发布的全球0.5°气候数据集以及WorldClim发布的全球高分辨率气候数据集,通过Delta空间降尺度方案在中国降尺度生成的。并且,使用496个独立气象观测点数据进行验证,验证结果可信。本数据集包含的地理空间范围是全国主要陆地(包含港澳台地区),不含南海岛礁等区域。为了便于存储,数据均为int16型存于nc文件中,降水单位为0.1mm。 nc数据可使用ArcMAP软件打开制图; 并可用Matlab软件进行提取处理,Matlab发布了读入与存储nc文件的函数,读取函数为ncread,切换到nc文件存储文件夹,语句表达为:ncread (‘XXX.nc’,‘var’, [i j t],[leni lenj lent]),其中XXX.nc为文件名,为字符串需要’’;var是从XXX.nc中读取的变量名,为字符串需要’’;i、j、t分别为读取数据的起始行、列、时间,leni、lenj、lent i分别为在行、列、时间维度上读取的长度。这样,研究区内任何地区、任何时间段均可用此函数读取。Matlab的help里面有很多关于nc数据的命令,可查看。数据坐标系统建议使用WGS84。
国家青藏高原科学数据中心 收录
HIT-UAV Dataset
The HIT-UAV: A High-Altitude Infrared Thermal Dataset for Unmanned Aerial Vehicle-Based Object Detection dataset consists of 2,898 infrared thermal images. These images were extracted from a larger pool of 43,470 frames sourced from numerous videos, all of which were publicly available and had undergone desensitization for privacy reasons. In order to enhance the dataset's utility for various tasks, the HIT-UAV10 dataset includes two types of annotated bounding boxes for each object within the images: oriented bounding boxes, designed to address the challenge of significant overlap between object instances in aerial images, and standard bounding boxes, aimed at facilitating efficient dataset utilization. This comprehensive dataset encompasses five distinct object categories: person, car, bicycle, other vehicle, and dontcare, totaling 24,899 annotated objects. The DontCare category encompasses objects that proved difficult for annotators to categorize accurately, with additional details provided in the Methods section.
datasetninja.com 收录
Population and Housing Census of 2007 - Ethiopia
Geographic coverage --------------------------- National coverage Analysis unit --------------------------- Household Person Housing unit Universe --------------------------- The census has counted people on dejure and defacto basis. The dejure population comprises all the persons who belong to a given area at a given time by virtue of usual residence, while under defacto approach people were counted as the residents of the place where they found. In the census, a person is said to be a usual resident of a household (and hence an area) if he/she has been residing in the household continuously for at least six months before the census day or intends to reside in the household for six months or longer. Thus, visitors are not included with the usual (dejure) population. Homeless persons were enumerated in the place where they spent the night on the enumeration day. The 2007 census counted foreign nationals who were residing in the city administration. On the other hand all Ethiopians living abroad were not counted. Kind of data --------------------------- Census/enumeration data [cen] Mode of data collection --------------------------- Face-to-face [f2f] Research instrument --------------------------- Two type sof questionnaires were used to collect census data: i) Short questionnaire ii) Long questionnaire Unlike the previous censuses, the contents of the short and long questionnaires were similar both for the urban and rural areas as well as for the entire city. But the short and the long questionnaires differ by the number of variables they contained. That is, the short questionnaire was used to collect basic data on population characteristics, such as population size, sex, age, language, ethnic group, religion, orphanhood and disability. Whereas the long questionnaire includes information on marital status, education, economic activity, migration, fertility, mortality, as well as housing stocks and conditions in addition to those questions contained in a short questionnaire.
catalog.ihsn.org 收录
NASA Battery Dataset
用于预测电池健康状态的数据集,由NASA提供。
github 收录