(E)-2-Chloro-N′-(4-hy­droxy­benzyl­idene)­benzohydrazide

The title hydrazone mol­ecule, C14H11ClN2O2, has a trans conformation with respect to the methyl­idene unit. The dihedral angle between the two benzene rings is 37.6 (3)°. In the crystal, the presence of O—H⋯O, O—H⋯N and N—H⋯O hydrogen bonds leads to the formation of a three-dimensional network. The title compound crystallized in the chiral ortho­rhom­bic space group P212121 and was refined as an inversion twin [Flack parameter = −0.20 (18)]

(E)-4-Hy­droxy-N′-(2-hy­droxy-3,5-diiodo­benzyl­idene)-3-meth­oxy­benzohydrazide methanol monosolvate

In the title compound, C15H12I2N2O4·CH3OH, the hydrazone mol­ecule exists in an E conformation with respect to the C=N bond. The dihedral angle between the rings is 11.9 (2)°. There is one intra­molecular O—H⋯N hydrogen bond in the hydrazone mol­ecule. In the crystal, the hydrazone and methanol mol­ecules are linked through O—H⋯O and N—H⋯O hydrogen bonds and C—H⋯O inter­actions to form two-dimensional networks lying parallel to (001)

Complexity growth rates for AdS black holes in massive gravity and f(R)f(R) gravity

The "complexity = action" duality states that the quantum complexity is equal to the action of the stationary AdS black holes within the Wheeler-DeWitt patch at late time approximation. We compute the action growth rates of the neutral and charged black holes in massive gravity and the neutral, charged and Kerr-Newman black holes in $f(R)$ gravity to test this conjecture. Besides, we investigate the effects of the massive graviton terms, higher derivative terms and the topology of the black hole horizon on the complexity growth rate.Comment: 11 pages, no figur

(E)-4-Nitro-N′-(3-nitro­benzyl­idene)benzohydrazide

The title compound, C14H10N4O5, has an E conformation with respect to the C=N bond. The dihedral angle between the benzene rings is 2.41 (14)°. In the crystal, mol­ecules are linked through N—H⋯O hydrogen bonds to form chains along the c axis. C—H⋯O inter­actions are also present, linking the chains to form a three-dimensional network

Predicting the Vitality of Stores Along the Street Based on Business Type Sequence via Recurrent Neural Network

The rational planning of store types and locations to maximize street vitality is essential in real estate planning. Traditional business planning relies heavily on the subjective experience of developers. Currently, developers have access to low-resolution urban data to support their decision making, and researchers have done much image-based machine learning research from the scale of urban texture. However, there is still a lack of research on the functional layout with shop-level accuracy. This paper uses a sequence-based neural network (RNN) to explore the relationship between the sequence of store types along a street and its commercial vitality. Currently, the use of RNNs in the architectural and urban fields is very rare. We use customer review data of 80streets from O2O platforms to represent the store vitality degree. In the machine learning model, the input is the sequence of store types on the street, and the output is the corresponding sequence of business vitality indexes. After training and evaluation, the model was shown to have acceptable accuracy. We further combined this evaluation model with a genetic algorithm to develop a business planning optimization tool to maximize the overall street business value, thus guiding real estate business planning at a high resolution

Enhanced quantum teleportation in the background of Schwarzschild spacetime by weak measurements

It is commonly believed that the fidelity of quantum teleportation in the gravitational field would be degraded due to the heat up by the Hawking radiation. In this paper, we point out that the Hawking effect could be eliminated by the combined action of pre- and post-weak measurements, and thus the teleportation fidelity is almost completely protected. It is intriguing to notice that the enhancement of fidelity could not be attributed to the improvement of entanglement, but rather to the probabilistic nature of weak measurements. Our work extends the ability of weak measurements as a quantum technique to battle against gravitational decoherence in relativistic quantum information.Comment: 9 pages, 5 figures, comments are welcom