DeployFusion: A Deployable Monocular 3D Object Detection with Multi-Sensor Information Fusion in BEV for Edge Devices.

To address the challenges of suboptimal remote detection and significant computational burden in existing multi-sensor information fusion 3D object detection methods, a novel approach based on Bird's-Eye View (BEV) is proposed. This method utilizes an enhanced lightweight EdgeNeXt feature extraction network, incorporating residual branches to address network degradation caused by the excessive depth of STDA encoding blocks. Meantime, deformable convolution is used to expand the receptive field and reduce computational complexity.

Modelling the effects of water diversion and combined sewer overflow on urban inland river quality.

In order to assist and optimize the operation of a clean water diversion project for the medium-sized inland rivers in Chaohu, China, an integrated hydrodynamic and water quality model was used in this study. Sixteen diversion scenarios and five sewage interception scenarios were defined to assess the improvement of water quality parameters including ammonia nitrogen (NH-N), total phosphorus (TP) and chemical oxygen demand (COD) under different diverted water flows, diverting times, diverting points, diverting routines and sewage interception proportions. An index of pollutant removal rate per unit diverted water flow (PRUWF) was proposed to evaluate the effect of the clean water diversion.

Tuning the Spectroscopic Properties of Ratiometric Fluorescent Metal Indicators: Experimental and Computational Studies on Mag-fura-2 and Analogues.

In this joint theoretical and experimental work, we investigate the properties of Mag-fura-2 and seven structurally related fluorescent sensors designed for the ratiometric detection of Mg cations. The synthesis of three new compounds is described, and the absorption and emission spectra of all of the sensors in both their free and metal-bound forms are reported. A time-dependent density functional theory approach accounting for hydration effects using a hybrid implicit/explicit model is employed to calculate the absorption and fluorescence emission wavelengths, study the origins of the hypsochromic shift caused by metal binding for all of the sensors in this family, and investigate the auxochromic effects of various modifications of the "fura" core.

Visualizing Compartmentalized Cellular Mg on Demand with Small-Molecule Fluorescent Sensors.

The study of intracellular metal ion compartmentalization and trafficking involved in cellular processes demands sensors with controllable localization for the measurement of organelle-specific levels of cations with subcellular resolution. We introduce herein a new two-step strategy for in situ anchoring and activation of a fluorescent Mg sensor within an organelle of choice, using a fast fluorogenic reaction between a tetrazine-functionalized pro-sensor, Mag-S-Tz, and a strained bicyclononyne conjugated to a genetically encoded HaloTag fusion protein of known cellular localization. Protein conjugation does not affect the metal-binding properties of the o-aminophenol-N,N,O-triacetic acid (APTRA)-based fluorescent indicator, which displays a dissociation constant K = 3.

Scheduling jobs with variable job processing times on unrelated parallel machines.

m unrelated parallel machines scheduling problems with variable job processing times are considered, where the processing time of a job is a function of its position in a sequence, its starting time, and its resource allocation. The objective is to determine the optimal resource allocation and the optimal schedule to minimize a total cost function that dependents on the total completion (waiting) time, the total machine load, the total absolute differences in completion (waiting) times on all machines, and total resource cost. If the number of machines is a given constant number, we propose a polynomial time algorithm to solve the problem.

Study the formation mechanism of silicon carbide polytype by silicon carbide nanobelts sintered under high pressure.

In this paper, in order to reveal the formation mechanism of SiC polytype, four SiC specimens sintered under high pressure has been investigated, after being prepared from SiC nanobelts as initial powders. The structure and morphology variation dependence of SiC specimens with temperature and pressure was studied based on experimental data obtained by XRD, SEM, and Raman. The results show that SiC lattice structure and the crystallite size are greatly affected by pressure between 2 and 4 GPa under different sintering temperatures of 800 and 1200 degrees C.

Ligand-free palladium-catalyzed intramolecular Heck reaction of secondary benzylic bromides.

A facile ligand-free palladium-catalyzed intramolecular Heck reaction of β-hydrogen-containing secondary benzylic bromides was developed, which affords pyrroline derivatives with good regioselectivities.

Palladium-catalyzed tandem diperoxidation/C-H activation resulting in diperoxy-oxindole in air.

A highly efficient and facile palladium-catalyzed tandem diperoxidation and C-H activation process was reported, which provides a new pathway for the synthesis of biologically active diperoxides as well as oxindole derivatives from readily available starting materials in excellent chemical yields.

Copper-catalyzed aminobromination/elimination process: an efficient access to alpha,beta-unsaturated vicinal haloamino ketones and esters.

A novel copper-catalyzed aminobromination-elimination process has been developed, which provides an easy access to alpha,beta-unsaturated vicinal haloamindes derivatives from readily available alpha,beta-unsaturated ketones and esters in good to excellent yields. The isolated intermediate discloses that the current system proceeds through the aminobromination process.

New catalytic system for aminohalogenation of beta-methyl-beta-nitrostyrenes to give opposite regiochemistry.

A new combination of catalyst and co-additive has been found for aminohalogenation reaction of beta-methyl-beta-nitrostyrenes with N,N-dichloro-p-tolunesulfonamide (4-TsNCl(2)). The reaction was achieved by using MnSO(4) as the catalyst together with tolunesulfonamide to give vicinal haloamino nitroalkanes with opposite regiochemistry to that generated from other electron-deficient olefins observed previously. The reaction proceeded smoothly at room temperature under nitrogen atmosphere to give useful to good yields and excellent regio and stereoselectivity.