Skeleton-based action recognition is an important task that requires the adequate understanding of movement characteristics a human from given skeleton sequence. Recent studies have shown exploring spatial and temporal features sequence vital for this task. Nevertheless, how to effectively extract discriminative still challenging problem. In paper, we propose novel Attention Enhanced Graph Convolutional LSTM Network (AGC-LSTM) data. The proposed AGC-LSTM can not only capture in configuration...

Pinpointing the role of geometric phase During chemical reactions, electrons usually rearrange more quickly than nuclei. Thus, theorists often adopt an adiabatic framework that considers vibrational and rotational dynamics within single electronic states. Near regime where two states intersect, get complicated, a factor is introduced to maintain simplifying power treatment. Yuan et al. conducted precise experimental measurements validate this approach. They studied elementary H + HD reaction...

Few-shot learning is a challenging problem since only few examples are provided to recognize new class. Several recent studies exploit additional semantic information, e.g. text embeddings of class names, address the issue rare samples through combining prototypes with visual prototypes. However, these methods still suffer from spurious features learned support samples, resulting in limited benefits. In this paper, we propose novel Semantic Prompt (SP) approach for few-shot learning. Instead...

Abstract Quantum interference between reaction pathways around a conical intersection (CI) is an ultrasensitive probe of detailed chemical dynamics. Yet, for the hydrogen exchange reaction, difference contributions two increases substantially as energy decreases, making experimental observation features at low exceedingly challenging. We report in this paper combined and theoretical study on H + HD → 2 D collision 1.72 eV. Although roaming insertion pathway constitutes only small fraction...

Abstract It has long been known that there is a conical intersection (CI) between the ground and first excited electronic state in H 3 system. Its associated geometric phase (GP) effect theoretically predicted to exist below CI since time. However, experimental evidence not established yet its dynamical origin waiting be elucidated. Here we report combined crossed molecular beam quantum reactive scattering dynamics study of H+HD → 2 +D reaction at 2.28 eV, which well CI. The GP clearly...

The effect of electron spin-orbit interactions on chemical reaction dynamics has been a topic much research interest. Here we report combined experimental and theoretical study the spin orbital angular momentum in F + HD → HF D reaction. Using high-resolution imaging technique, observed peculiar horseshoe-shaped pattern product rotational-state-resolved differential cross sections around forward-scattering direction. unusual could only be explained properly by highly accurate quantum theory...

A promising paradigm of quantum computing for achieving practical advantages is annealing or approximate optimization algorithm, where the classical problems are encoded in Ising interactions. However, it challenging to build a system that can efficiently map any structured problems. Here, we present trapped-ion processor efficient encode arbitrary models with all-to-all connectivity up four spins. We implement spin-spin interactions by using coupling trapped ions multiple collective...

Abstract In this paper, we propose a feature-based multi-frequency component fusion as network module for the attention mechanism, in response to prevalence of current image super-resolution models most basic residual network. The performance model is evaluated using peak signal-to-noise ratio (PSNR) and structural similarity (SSIM) verify its operability enhancement graphic design. Aiming at dynamic demand logo design era smart media, evaluation system constructed. Combined with scoring...

Quantitative risk assessment (QRA) has been widely used in the oil and gas pipeline industry. QRA mainly includes four steps, namely, hazard identification, probability calculation, consequence assessment, quantification. Consequence is an integral part of QRA, which aims to quantify negative impacts when failure events take place. However, current methods pay attention determination influence area around accidents simple assimilations losses, ignoring components these losses. This leads...

A comprehensive understanding of dissociation mechanisms is fundamental importance in the photochemistry small molecules. Here, we investigated detailed photodissociation dynamics H2S+ near 337 nm by using velocity map ion imaging technique together with theoretical characterizations developing global full-dimensional potential energy surfaces (PESs). Rotational state resolved images were acquired for S+(4S) + H2 product channel. Significant changes total kinetic release distributions and...

With the advancement of autonomous driving technology, scenario-based testing has become mainstream method for intelligent vehicles. However, traditional risk indicators often fail in roundabout scenarios and cannot accurately define dangerous situations. To quantify risks scenarios, an improved safety field model is proposed this paper. First, considering unique traffic flow characteristics roundabouts, dynamic vehicles during diverging or merging were taken into account, was to scenarios....

The textbook mechanism for OCS photodissociation mainly involves the CO + S or CS O product channel via a single bond fission. However, third dissociation concerning cleavage of both C-S and C-O bonds yielding SO C products, though thermodynamically allowed, has never been verified experimentally to date. By using tunable vacuum ultraviolet laser light time-sliced velocity map ion imaging technique, we have clearly observed SO(X3Σ-) C(3PJ=0) products as photon energy gradually exceeds its...

Vacuum ultraviolet photodissociation dynamics of nitrous oxide was investigated using the time-sliced velocity ion imaging technique. Images O((1)SJ=0) and O((3)PJ=2,1,0) products were measured at nine photolysis wavelengths from 124.44 to 133.20 nm, respectively. Three main dissociation channels: O((1)S0) + N2(X(1)Σg(+)), N2(A(3)Σu(+)), N2(B(3)Πg) observed identified in product images where vibrational states N2 fully resolved. Product total kinetic energy releases angular distributions...

Understanding vacuum ultraviolet (VUV) photodissociation dynamics of CO2 is considerable importance in the study atmospheric chemistry and planetary chemistry. Yet, spin-forbidden O(3Pj=2,1,0) + CO(X1Σ+) channel has not been clearly understood so far. Here, we O(3Pj) dissociation processes VUV at photolysis wavelengths between 129.02 134.67 nm by using time-sliced velocity-mapped ion imaging technique. From vibrational-resolved images photofragment, total kinetic energy releases, cofragment...

We present a simple Paul trap that stably accommodates up to couple of dozens \ensuremath{^{171}\mathrm{Yb}^+~} ions in stationary two-dimensional lattice. The is constructed on single plate gold-plated laser-machined alumina and can produce pancake-like pseudo-potential makes form self-assembly crystal which locates the plane composed axial one transverse axes with around 5 $\mu$m spacing. use Raman laser beams coherently manipulate these ion-qubits where net propagation direction...

We study the vacuum ultraviolet (VUV) photodissociation dynamics of carbonyl sulfide (OCS) by using time sliced velocity map ion imaging technique. Experimental images dissociative O (3PJ=0,1,2) products were acquired at five VUV photolysis wavelengths from 133.26 to 139.96 nm that correspond F Rydberg state OCS. High vibrational states carbon monosulfide (CS) co-products are partially resolved in images. The product total kinetic energy releases, angular distributions, and branching ratios...

Few-shot learning is a challenging problem since only few examples are provided to recognize new class. Several recent studies exploit additional semantic information, e.g. text embeddings of class names, address the issue rare samples through combining prototypes with visual prototypes. However, these methods still suffer from spurious features learned support samples, resulting in limited benefits. In this paper, we propose novel Semantic Prompt (SP) approach for few-shot learning. Instead...

High-resolution state-resolved differential cross sections (DCSs) are of great importance in understanding quantum reaction dynamics, and they the most detailed observables that can be experimentally measured. Here we report a synergic crossed molecular beam dynamics study on H + D2 reaction. With time-sliced velocity map ion imaging (VMI) technique near-threshold ionization scheme, acquired product rovibrational DCSs (v = 0, j 0) → HD (v′, j′) D at collision energy 1.42 eV. For products...

We report the study of photodissociation dynamics nitrous oxide in vacuum ultraviolet region, using time-sliced velocity map ion imaging technique. Ion images O(1S0) and O(3P J=2,1,0) products were measured at nine photolysis wavelengths from 142.55 to 148.79 nm. The product channels + N2(X1Σg+) N2(A3Σu+) have been observed. For these dissociation channels, total kinetic energy releases dissociated acquired. With vibrational structures N2 coproducts partially resolved experimental images,...

Vacuum ultraviolet photodissociation dynamics of carbonyl sulfide (OCS) was investigated by using the time-sliced velocity map ion imaging technique. Images S(1SJ=0) and S(3PJ=2,1,0) photofragments formed in OCS were acquired at six photolysis wavelengths from 147.24 to 156.48 nm. Vibrational states CO coproducts partially resolved identified images. Two main dissociation product channels, namely, spin-allowed + CO(X1Σg+) spin-forbidden CO(X1Σg+), observed. At each wavelength, total kinetic...

We study the vacuum ultraviolet photodissociation dynamics of N2O via C1Π state by using time-sliced velocity map ion imaging technique. Images N(2Dj=5/2, 3/2) products from N atom elimination channels were acquired at a set photolysis wavelengths 142.55 to 148.19 nm. Vibrational states NO(X2Π) co-fragments partially resolved in experimental images. From these images, product total kinetic energy release distributions (TKERs), branching ratios vibrational co-fragments, and specific angular...

The H+H2 reaction is the simplest chemical system and has long been prototype model in study of dynamics. Here we report a high resolution experimental investigation state-to-state dynamics H+HD→H2+D by using crossed molecular beams method velocity map ion imaging technique at collision energy 1.17 eV. D atom products this were probed near threshold 1+1′ (vacuum ultraviolet+ultraviolet) laser ionization scheme. image with both angular acquired. State-to-state differential cross sections was...

Here we report the study of photodissociation dynamics carbonyl sulfide in vacuum ultraviolet region using time-sliced velocity map ion imaging technique. Images S(3PJ=2,1,0), S(1D2) and S(1S0) products were measured at four photolysis wave-lengths 129.32, 128.14, 126.99, 126.08 nm, respectively. Four main dissociation channels: S(3PJ=2,1,0)+CO(X1Σ+), S(3PJ=2,1,0)+CO(A3Π), S(1D2)+CO(X1Σ+) S(1S0)+CO(X1Σ+) channels, have been clearly observed identified. Vibrational states CO co-products...