240 research outputs found
A Two-part Transformer Network for Controllable Motion Synthesis
Although part-based motion synthesis networks have been investigated to
reduce the complexity of modeling heterogeneous human motions, their
computational cost remains prohibitive in interactive applications. To this
end, we propose a novel two-part transformer network that aims to achieve
high-quality, controllable motion synthesis results in real-time. Our network
separates the skeleton into the upper and lower body parts, reducing the
expensive cross-part fusion operations, and models the motions of each part
separately through two streams of auto-regressive modules formed by multi-head
attention layers. However, such a design might not sufficiently capture the
correlations between the parts. We thus intentionally let the two parts share
the features of the root joint and design a consistency loss to penalize the
difference in the estimated root features and motions by these two
auto-regressive modules, significantly improving the quality of synthesized
motions. After training on our motion dataset, our network can synthesize a
wide range of heterogeneous motions, like cartwheels and twists. Experimental
and user study results demonstrate that our network is superior to
state-of-the-art human motion synthesis networks in the quality of generated
motions.Comment: 16 pages, 26 figure
Continuously Adjustable, Molecular-Sieving Gate on 5A Zeolite for Distinguishing Small Organic Molecules by Size
Zeolites/molecular sieves with uniform, molecular-sized pores are important for many adsorption-based separation processes. Pore size gaps, however, exist in the current zeolite family. This leads to a great challenge of separating molecules with size differences at ~0.01 nm level. Here, we report a novel concept, pore misalignment, to form a continuously adjustable, molecular-sieving “gate†at the 5A zeolite pore entrance without sacrificing the internal capacity. Misalignment of the micropores of the alumina coating with the 5A zeolite pores was related with and facilely adjusted by the coating thickness. For the first time, organic molecules with sub-0.01 nm size differences were effectively distinguished via appropriate misalignment. This novel concept may have great potential to fill the pore size gaps of the zeolite family and realize size-selective adsorption separation
Influences It Has on Insurance Institutions' Assest Liability Management by Insurance Capital Participate in Affordable Housing
Abstract: This paper demonstrates that insurance capital participate in affordable housing construction meet the needs of insurance company assets liabilities management. And make a study about influences it has upon insurance institutions' optimizing investment structure by insurance capital participating in affordable housing constrction. Utilizing assest liability managemnt can optimize insurance capital allocation, and it can scheme out investment variety structure, term structure and interest rate structure. Nature of insurance capital decides it pursues the match between assest and liability, especially the match between in yields and durations. Insurance capital has the characteristic of long term, large scale, high stability, high security requirements, low demand of yields. Affordable housing has public nature, and it is a long term, large demand, produce effective slowly. It is a policy project which belongs to the state investment, so the risk is low. Nature of insurance capital accords with the choice of participating in affordable housing. The main investment channels of Insurance capital in China including bank savings, bonds, securities investment funds and stock. Recently, anlong with the broaden of investment channels, it is allowed to invest in real estate, however, as yields is higher, risk is also exists at the same time. Because affordable housing has quasi-public product attributes, so the risk is lower compared with other assets. Insurance capital participate in affordable housing construction not only could lower the risk, but also can gain stable yields, what's more, it could optimize overall assest allocation structure. The main Influences it has on insurance institutions' assest liability management by insurance capital participate in affordable housing are: make asset and liabiliy match on the term and structure, optimizing the whole capital portfolio, lower the risk caused by sigle asset proportion occpy too much weight to higher the whole systematic risk. This paper based on VaR model, Markowitz mean variance model, use Local Treasury Bonds yield rate as data source to leverage yield rate of participating afford housing by insurance companies, so we put forward the conceive of positive analysis about insurance capital participate in affordable housing optimze asset liability management. The innovation of this paper is the conbination of insurance capital participate in affordable housing and asset liability management , and states the influences it could have for insurance institutions
Study of damage characteristics in composite structures from simulated lightning strikes
This work investigated experimentally the direct effects of simulated lightning strikes in carbon/epoxy and E-glass/epoxy laminates. The direct effects were represented by Joule heating and kinetic shock waves. The experimental set-up was designed to maximize these direct effects by employing a solid electrode, pointed vertically to the surface of the specimens with a small electrode gap. The damage mechanisms were found to be in the form of resin sublimation, delamination and fibre tufting. The damage characteristics depended on type of composite materials, lightning current and action integral. In the carbon/epoxy laminates, resin sublimation and degradation were dominant at relatively low currents and with the further increase in current fibre tufting appeared due to kinetic shock waves. Penetration into the laminates was found to be limited to the only top two plies in the extreme case. The damage characteristics of the E-glass/epoxy laminates with a tiny hole were dominated by extensive delamination due entirely to shock waves with little sign of Joule heating. Analytical work will be desired to aid establishment of relationships between the damage characteristics and the lightning strike parameters via lightning channel radius and raised temperatures
Vaccaria hypaphorine alleviates lipopolysaccharide-induced inflammation via inactivation of NFκB and ERK pathways in Raw 264.7 cells
10.1186/s12906-017-1635-1BMC Complementary and Alternative Medicine17112
Computational design of skinned Quad-Robots
We present a computational design system that assists users to model, optimize, and fabricate quad-robots with soft skins. Our system addresses the challenging task of predicting their physical behavior by fully integrating the multibody dynamics of the mechanical skeleton and the elastic behavior of the soft skin. The developed motion control strategy uses an alternating optimization scheme to avoid expensive full space time-optimization, interleaving space-time optimization for the skeleton, and frame-by-frame optimization for the full dynamics. The output are motor torques to drive the robot to achieve a user prescribed motion trajectory. We also provide a collection of convenient engineering tools and empirical manufacturing guidance to support the fabrication of the designed quad-robot. We validate the feasibility of designs generated with our system through physics simulations and with a physically-fabricated prototype
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