321 research outputs found
FIRST: A Million-Entry Dataset for Text-Driven Fashion Synthesis and Design
Text-driven fashion synthesis and design is an extremely valuable part of
artificial intelligence generative content(AIGC), which has the potential to
propel a tremendous revolution in the traditional fashion industry. To advance
the research on text-driven fashion synthesis and design, we introduce a new
dataset comprising a million high-resolution fashion images with rich
structured textual(FIRST) descriptions. In the FIRST, there is a wide range of
attire categories and each image-paired textual description is organized at
multiple hierarchical levels. Experiments on prevalent generative models
trained over FISRT show the necessity of FIRST. We invite the community to
further develop more intelligent fashion synthesis and design systems that make
fashion design more creative and imaginative based on our dataset. The dataset
will be released soon.Comment: 11 pages, 8 figure
Optimal design of a large-span spatial structure based on dynamic elastic-plastic analysis
With the expansion of the urban areas and the rapid growth of the urban population, the disposal of large amounts of domestic waste has become a problem faced by large cities. To solve this problem, many MSW incineration power plants have been continuously built. As a typical large-span spatial structure of waste incineration power plant, how to achieve economic, beautiful, and environmentally friendly design goals under the premise of meeting the requirements of the production process is an important problem currently facing. In this paper, a structural design optimization method based on damage index is proposed. Taking a large-span mixed structure of a MSW incineration power plant as an example, the paper firstly uses the dynamic elastic-plastic time history analysis method to evaluate its seismic performance, and then optimizes the structure according to the damage degree of the structure under small and large earthquakes design. The results show that under the premise of meeting the requirements of the code, this method can ensure that the degree of structural damage under the earthquake remains almost unchanged, while significantly reducing the amount of building materials and reducing the cost. At the same time, this method is more direct, simple, and effective than optimization design methods based on experience and internal forces of structural members
The Tianlin Mission: a 6m UV/Opt/IR space telescope to explore the habitable worlds and the universe
[Abridged] It is expected that the ongoing and future space-borne planet
survey missions including TESS, PLATO, and Earth 2.0 will detect thousands of
small to medium-sized planets via the transit technique, including over a
hundred habitable terrestrial rocky planets. To conduct a detailed study of
these terrestrial planets, particularly the cool ones with wide orbits, the
exoplanet community has proposed various follow-up missions. The currently
proposed ESA mission ARIEL is capable of characterization of planets down to
warm super-Earths mainly using transmission spectroscopy. The NASA 6m
UV/Opt/NIR mission proposed in the Astro2020 Decadal Survey may further tackle
down to habitable rocky planets, and is expected to launch around 2045. In the
meanwhile, China is funding a concept study of a 6-m class space telescope
named Tianlin (A UV/Opt/NIR Large Aperture Space Telescope) that aims to start
its operation within the next 10-15 years and last for 5+ years. Tianlin will
be primarily aimed to the discovery and characterization of rocky planets in
the habitable zones (HZ) around nearby stars and to search for potential
biosignatures mainly using the direct imaging method. Transmission and emission
spectroscopy at moderate to high resolution will be carried out as well on a
population of exoplanets to strengthen the understanding of the formation and
evolution of exoplanets. It will also carry out in-depth studies of the cosmic
web and early galaxies, and constrain the nature of the dark matter and dark
energy. We describe briefly the primary scientific motivations and main
technical considerations based on our preliminary simulation results. We find
that a monolithic off-axis space telescope with a primary mirror diameter
larger than 6m equipped with a high contrast chronograph can identify water in
the atmosphere of a habitable-zone Earth-like planet around a Sun-like star.Comment: 15 pages, 5 figures, accepted for publication in RAA and is available
onlin
CRISPR-cas technology: A key approach for SARS-CoV-2 detection
The CRISPR (Clustered Regularly Spaced Short Palindromic Repeats) system was first discovered in prokaryotes as a unique immune mechanism to clear foreign nucleic acids. It has been rapidly and extensively used in basic and applied research owing to its strong ability of gene editing, regulation and detection in eukaryotes. Hererin in this article, we reviewed the biology, mechanisms and relevance of CRISPR-Cas technology and its applications in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) diagnosis. CRISPR-Cas nucleic acid detection tools include CRISPR-Cas9, CRISPR-Cas12, CRISPR-Cas13, CRISPR-Cas14, CRISPR nucleic acid amplification detection technology, and CRISPR colorimetric readout detection system. The above CRISPR technologies have been applied to the nucleic acid detection, including SARS-CoV-2 detection. Common nucleic acid detection based on CRISPR derivation technology include SHERLOCK, DETECTR, and STOPCovid. CRISPR-Cas biosensing technology has been widely applied to point-of-care testing (POCT) by targeting recognition of both DNA molecules and RNA Molecules
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