This paper presents
iDesigner
, a novel AI-assisted design system tailored to support intelligent fashion designs. Our proposed system aims to assist fashion designers by automatically synthesizing ...high-quality product images conditioned on category attributes and texture examples. Since fashion sketches are the fundamental basis of fashion designs, we implement
iDesigner
with two design assistants, namely
Fashion-Sketcher
and
Style-Transfer
. Specifically,
Fashion-Sketcher
generates a variety of realistic fashion sketches conditioned on the category attribute by mimicking human painters that first draw the outlines and then finish the detailed contents of the objects.
Style-Transfer
synthesizes the fashion product images by applying texture examples onto the synthetic sketch images with a feature transformation scheme. We validate our approach using a new dataset and demonstrate that our proposed
iDesigner
can not only successfully generate diverse sketch images conditioned on category attributes, but also generate high-quality fashion product images conditioned on sketch images and texture examples.
Single-ion conducting solid polymer electrolytes (SICSPEs) with high ionic conductivity are vital for next-generation electrochemical devices. Herein, we presented a novel method to manipulate the ...phase separation structure of SICSPEs, leading to the construction of long-range conducting ionic channels for rapid ion transport. Ionic nanowires were first fabricated by anchoring numerous lithium sulfonyl(trifluoromethanesulfonyl)imide groups on poly(ether ether ketone) backbones. Then, the ionic nanowires were dispersed in a well-designed hyperbranched polymer, poly(polyethylene glycol methyl ether methacrylate), to fabricate a blend membrane. Intertwined and continuous ionic channels were observed in the blend membrane by transmission electron microscopy. The blend membrane exhibited high conductivity of 0.17 × 10 −3 to 1.01 × 10 −3 S cm −1 and an outstanding lithium ion transference number of 0.898–0.936. A half-cell using LiFePO 4 and the blend membrane exhibited discharge capacities (0.2C) of 121.7 and 152.7 mA h g −1 at 25 and 60 °C, respectively. This study revealed a facile strategy to design high-performance ion-conducting membranes that are attractive for use in lithium ion batteries.
We prepared peapod-like titanium dioxide@graphene@carbon (TiO2@GO@C) nanofiber membranes through electrospinning. Due to the porous structure, large surface area, abundant surface functional groups ...and excellent thermal conductivity, GO can capsulize TiO2 nanoparticles to form a pea-like TiO2@GO structure. Subsequently, TiO2@GO can be wrapped by the carbon nanofiber during an electrospinning process, forming peapod-like TiO2@GO@C nanofiber membranes. The existence of a peapod-like structure is beneficial for enhancing the crystallinity of TiO2, and preventing the phase transformation of TiO2 from anatase to rutile phase at the same time. Furthermore, on the basis of the excellent carrier transport property of GO, the peapod-like TiO2@GO@C structure could also improve the light absorption, reduce recombination of hole–electron pairs, and improve the carrier transport and finally photocatalytic degradation property of methylene blue. Besides, the pea-like TiO2@GO structure shows a dispersion strengthening effect in the carbon nanofibers, preventing the carbon nanofibers from fracture. In particular, by optimizing the heat treatment temperature and additional amount of GO, the peapod-like TiO2@GO@C nanofiber membranes with 0.3 wt% GO show an excellent photocatalytic degradation efficiency of 98.5% in 3 h, and a high strength of 356.07 cN per dtex.
We prepared peapod-like titanium dioxide@graphene@carbon (TiO 2 @GO@C) nanofiber membranes through electrospinning. Due to the porous structure, large surface area, abundant surface functional groups ...and excellent thermal conductivity, GO can capsulize TiO 2 nanoparticles to form a pea-like TiO 2 @GO structure. Subsequently, TiO 2 @GO can be wrapped by the carbon nanofiber during an electrospinning process, forming peapod-like TiO 2 @GO@C nanofiber membranes. The existence of a peapod-like structure is beneficial for enhancing the crystallinity of TiO 2 , and preventing the phase transformation of TiO 2 from anatase to rutile phase at the same time. Furthermore, on the basis of the excellent carrier transport property of GO, the peapod-like TiO 2 @GO@C structure could also improve the light absorption, reduce recombination of hole–electron pairs, and improve the carrier transport and finally photocatalytic degradation property of methylene blue. Besides, the pea-like TiO 2 @GO structure shows a dispersion strengthening effect in the carbon nanofibers, preventing the carbon nanofibers from fracture. In particular, by optimizing the heat treatment temperature and additional amount of GO, the peapod-like TiO 2 @GO@C nanofiber membranes with 0.3 wt% GO show an excellent photocatalytic degradation efficiency of 98.5% in 3 h, and a high strength of 356.07 cN per dtex.
We prepared peapod-like titanium dioxide@graphene@carbon (TiO
2
@GO@C) nanofiber membranes through electrospinning. Due to the porous structure, large surface area, abundant surface functional groups ...and excellent thermal conductivity, GO can capsulize TiO
2
nanoparticles to form a pea-like TiO
2
@GO structure. Subsequently, TiO
2
@GO can be wrapped by the carbon nanofiber during an electrospinning process, forming peapod-like TiO
2
@GO@C nanofiber membranes. The existence of a peapod-like structure is beneficial for enhancing the crystallinity of TiO
2
, and preventing the phase transformation of TiO
2
from anatase to rutile phase at the same time. Furthermore, on the basis of the excellent carrier transport property of GO, the peapod-like TiO
2
@GO@C structure could also improve the light absorption, reduce recombination of hole-electron pairs, and improve the carrier transport and finally photocatalytic degradation property of methylene blue. Besides, the pea-like TiO
2
@GO structure shows a dispersion strengthening effect in the carbon nanofibers, preventing the carbon nanofibers from fracture. In particular, by optimizing the heat treatment temperature and additional amount of GO, the peapod-like TiO
2
@GO@C nanofiber membranes with 0.3 wt% GO show an excellent photocatalytic degradation efficiency of 98.5% in 3 h, and a high strength of 356.07 cN per dtex.
Electrospun peapod-like TiO
2
@GO@C nanofiber membranes enhance their photocatalytic properties for the improved crystallinity of TiO
2
and carrier transport, and simultaneously improve their mechanical properties.
Abstract
Rivers are constantly changing under the combined influence of nature and human activities. When exploring the evolution law and morphological characteristics of natural rivers, scholars at ...home and abroad have introduced many characteristic parameters for quantitative analysis, and the bankfull discharge has always been an important index in the study of riverbed evolution. This paper compares the different calculation methods of bankfull discharge and analyzes the influence factors that lead to the fluctuation of bankfull discharge, and draws two conclusions. On the one hand, in the future, when optimizing and improving the method of calculating bankfull discharge, two points can be mainly grasped: reducing subjective error and improving accuracy. On the other hand, there are many factors that affect the flow of the bankfull discharge, so the accuracy and effectiveness of the basic parameters must be paid attention to in the determination.
Single-ion conducting solid polymer electrolytes (SICSPEs) with high ionic conductivity are vital for next-generation electrochemical devices. Herein, we presented a novel method to manipulate the ...phase separation structure of SICSPEs, leading to the construction of long-range conducting ionic channels for rapid ion transport. Ionic nanowires were first fabricated by anchoring numerous lithium sulfonyl(trifluoromethanesulfonyl)imide groups on poly(ether ether ketone) backbones. Then, the ionic nanowires were dispersed in a well-designed hyperbranched polymer, poly(polyethylene glycol methyl ether methacrylate), to fabricate a blend membrane. Intertwined and continuous ionic channels were observed in the blend membrane by transmission electron microscopy. The blend membrane exhibited high conductivity of 0.17 × 10
−3
to 1.01 × 10
−3
S cm
−1
and an outstanding lithium ion transference number of 0.898-0.936. A half-cell using LiFePO
4
and the blend membrane exhibited discharge capacities (0.2C) of 121.7 and 152.7 mA h g
−1
at 25 and 60 °C, respectively. This study revealed a facile strategy to design high-performance ion-conducting membranes that are attractive for use in lithium ion batteries.
An approach to construct ionic channels in SICSPEs by blending pre-assembled ionic nanowires and hyperbranched polymers for high lithium-ion conductivity.
Abstract
Supported atomic metal sites have discrete molecular orbitals. Precise control over the energies of these sites is key to achieving novel reaction pathways with superior selectivity. Here, ...we achieve selective oxygen (O
2
) activation by utilising a framework of cerium (Ce) cations to reduce the energy of 3
d
orbitals of isolated copper (Cu) sites. Operando X-ray absorption spectroscopy, electron paramagnetic resonance and density-functional theory simulations are used to demonstrate that a Cu(I)O
2
3−
site selectively adsorbs molecular O
2
, forming a rarely reported electrophilic η
2
-O
2
species at 298 K. Assisted by neighbouring Ce(III) cations, η
2
-O
2
is finally reduced to two O
2−
, that create two Cu–O–Ce oxo-bridges at 453 K. The isolated Cu(I)/(II) sites are ten times more active in CO oxidation than CuO clusters, showing a turnover frequency of 0.028 ± 0.003 s
−1
at 373 K and 0.01 bar
P
CO
. The unique electronic structure of Cu(I)O
2
3−
site suggests its potential in selective oxidation.
Single-cell RNA sequencing (scRNA-seq) is generally used for profiling transcriptome of individual cells. The droplet-based 10X Genomics Chromium (10X) approach and the plate-based Smart-seq2 ...full-length method are two frequently used scRNA-seq platforms, yet there are only a few thorough and systematic comparisons of their advantages and limitations. Here, by directly comparing the scRNA-seq data generated by these two platforms from the same samples of CD45− cells, we systematically evaluated their features using a wide spectrum of analyses. Smart-seq2 detected more genes in a cell, especially low abundance transcripts as well as alternatively spliced transcripts, but captured higher proportion of mitochondrial genes. The composite of Smart-seq2 data also resembled bulk RNA-seq data more. For 10X-based data, we observed higher noise for mRNAs with low expression levels. Approximately 10%−30% of all detected transcripts by both platforms were from non-coding genes, with long non-coding RNAs (lncRNAs) accounting for a higher proportion in 10X. 10X-based data displayed more severe dropout problem, especially for genes with lower expression levels. However, 10X-data can detect rare cell types given its ability to cover a large number of cells. In addition, each platform detected distinct groups of differentially expressed genes between cell clusters, indicating the different characteristics of these technologies. Our study promotes better understanding of these two platforms and offers the basis for an informed choice of these widely used technologies.
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