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With new heat treatment, 3D-printed metals can withstand extreme conditions（图）
热处理 3D打印 金属微观结构 燃气轮机 喷气发动机 叶片
2023/6/6
A new MIT-developed heat treatment transforms the microscopic structure of 3D-printed metals, making the materials stronger and more resilient in extreme thermal environments. The technique could make...
Scientists observe a single quantum vibration under ordinary conditions: Studying a common material at room temperature, researchers bring quantum behavior 'closer to our daily life'
quantum vibration daily life quantum behavior common material room temperature
2019/10/10
When a guitar string is plucked, it vibrates as any vibrating object would, rising and falling like a wave, as the laws of classical physics predict. But under the laws of quantum mechanics, which des...
STUDY ON BIG DATABASE CONSTRUCTION AND ITS APPLICATION OF SAMPLE DATA COLLECTED IN CHINA'S FIRST NATIONAL GEOGRAPHIC CONDITIONS CENSUS BASED ON REMOTE SENSING IMAGES
National Geographic Conditions Census Sample Data Big Data Database Distributed File System
2018/5/11
In the project of China's First National Geographic Conditions Census, millions of sample data have been collected all over the country for interpreting land cover based on remote sensing images, the ...
AERIAL PLATFORM RELIABILITY FOR FLOOD MONITORING UNDER VARIOUS WEATHER CONDITIONS: A REVIEW
Aerial Platform Flood Monitoring Various Weather Condition Operation
2018/4/18
Flood is an annual disaster in Malaysia, especially in the east coast region. Recently, other regions in Malaysia have also experience devastating flood. A flood aerial monitoring is one of the approa...
AERIAL PLATFORM RELIABILITY FOR FLOOD MONITORING UNDER VARIOUS WEATHER CONDITIONS: A REVIEW
Aerial Platform Flood Monitoring Various Weather Condition Operation
2018/5/8
Flood is an annual disaster in Malaysia, especially in the east coast region. Recently, other regions in Malaysia have also experience devastating flood. A flood aerial monitoring is one of the approa...
CONCEPT MODEL FOR DRONE SELECTION IN SPECIFIC DISASTER CONDITIONS
Drones Disaster Relief Selection Criteria Performance Mapping
2018/4/18
Drones come in huge variety of shapes, sizes and flight characteristics. They can fly in places where no manned aircraft flies or where a person is not desirable to be. Their ability to perform “3D” –...
CONCEPT MODEL FOR DRONE SELECTION IN SPECIFIC DISASTER CONDITIONS
Drones, Disaster Relief, Selection Criteria, Performance Mapping
2018/5/8
Drones come in huge variety of shapes, sizes and flight characteristics. They can fly in places where no manned aircraft flies or where a person is not desirable to be. Their ability to perform “3D” –...
美国气象学会会刊发表王开存课题组论文“PM2.5 Pollution in China and How It Has Been Exacerbated by Terrain and Meteorological Conditions”
美国气象学会 会刊 王开存课题组 论文 PM2.5
2017/6/28
近日，美国气象学会会刊（Bulletin of the American Meteorological Society）在线发表了北京师范大学王开存教授团队题为“PM2.5 Pollution in China and How It Has Been Exacerbated by Terrain and MeteorologicalConditions”的最新研究成果，王开存教授为通讯作者。该研究...
Effects of geo-ecological conditions on larch wood variations in the North European part of Russia (Arkhangelsk region)
Larix sibirica wood density latewood content ring width
2017/6/26
The present study examines the macrostructure and density of larch wood and possible influences on the productivity of larch stands. The studies were conducted in the middle and sub-tundra taiga in th...
FROM THE ROAD SIGN TO THE MAP: 3D MODELING IN SUPPORT OF THE URBAN AND RURAL ROAD CONDITIONS
aerial photogrammetry points cloud road sign drone UAV
2017/6/20
Unmanned Aerial Vehicles (UAV), commonly known as a drone, and an Unmanned Aircraft Systems (UAS) have been spreading on a massive scale during the last few years, especially for civilian use. And thi...
Influence of site conditions and silvicultural practice on the wood density of Scots pine (Pinus sylvestris L.) – a case study from the Doksy locality, Czech Republic
shelterwood regeneration clearcut forest site softwoods physical properties variability
2018/3/6
After spruce, the Scots pine (Pinus sylvestris Linnaeus) is the second most important commercial coniferous tree
species in the Czech Republic. However, we are finding out that awareness of the varia...
MAPPING ROBINIA PSEUDOACACIA FOREST HEALTH CONDITIONS BY USING COMBINED SPECTRAL,SPATIAL AND TEXTUREAL INFORMATION EXTRACTED FROM IKONOS IMAGERY
GLCM Getis statistic random forest forest health condition Robinia pseudoacacia
2016/12/1
In this study grey-level co-occurrence matrix (GLCM) textures and a local statistical analysis Getis statistic (Gi), computed from IKONOS multispectral (MS) imagery acquired from the Yellow River Delt...
COMBINING REMOTELY SENSED ENVIRONMENTAL CHARACTERISTICS WITH SOCIAL AND BEHAVIORAL CONDITIONS THAT AFFECT SURFACE WATER USE IN SPATIOTEMPORAL MODELLING OF SCHISTOSOMIASIS IN GHANA
Schistosomiasis Risk Habitat Suitability Index Domestic and Recreational Surface Water Use Ghana
2016/11/30
Schistosoma haematobium transmission is influenced by environmental conditions that determine the suitability of the parasite and intermediate host snail habitats, as well as by socioeconomic conditio...
RESEARCH ON THE CONSTRUCTION METHOD OF COMPREHENSIVE EVALUATION INDEX OF GEOGRAPHIC CONDITIONS
Geographic conditions Index Mathematical method Evaluation
2016/11/23
This article proposes a construction method for a comprehensive geographic conditions evaluation index based on geographic conditions survey data combined with thematic data on society, economy, ecolo...
DENOISING ALGORITHM FOR THE PIXEL-RESPONSE NON-UNIFORMITY CORRECTION OF A SCIENTIFIC CMOS UNDER LOW LIGHT CONDITIONS
CMOS Denoising algorithm Pixel-response non-uniformity
2016/7/28
We present a denoising algorithm for the pixel-response non-uniformity correction of a scientific complementary metal–oxide–semiconductor (CMOS) image sensor, which captures images under extremely low...