Low-dimensional nanoparticles have a strong ability to induce the crystallization of polymer matrices. One-dimensional carbon nanotubes (CNTs) and two-dimensional graphene nanosheets (GNSs), both which are carbon-based nanoparticles, provide good opportunity investigate effects differently dimensional on behavior polymer. For this purpose, respective nanocomposites CNTs GNSs with poly(l-lactide) (PLLA) as matrix were prepared by solution coagulation. Time-resolved Fourier-transform infrared...

Abstract The rapidly growing exploitation and utilization of marine resources by humans has sparked considerable interest in underwater object detection tasks. Targets captured environments differ significantly from those general images owing to various factors, such as water turbidity, complex background conditions, lighting variations. These adverse factors pose a host challenges, high intensity noise, texture distortion, uneven illumination, low contrast, limited visibility images. To...

Most privacy-conscious users utilize HTTPS and an anonymity network such as Tor to mask source destination IP addresses. It has been shown that encrypted anonymized traffic traces can still leak information through a type of attack called website fingerprinting (WF) attack. The adversary records the is only able observe number incoming outgoing messages, size each message, time difference between messages. In previous work, effectiveness have accuracy over 90% when using network. Thus,...

Tao Chen, Ruifeng Xu, Yulan He, Xuan Wang. Proceedings of the 53rd Annual Meeting Association for Computational Linguistics and 7th International Joint Conference on Natural Language Processing (Volume 2: Short Papers). 2015.

Abstract CsPbI 3 perovskite quantum dots (QDs) doped borosilicate glass was prepared by the process of melt‐quenching and subsequent annealing. With introduction ZnO to parent as network intermediate, optical properties resultant samples are dramatically enhanced. Both photoluminescence (PL) intensity yield (PLQY) shows a strong dependence on concentration is found facilitate precipitated QDs reducing connectivity three‐dimensional built from SiO 4 tetrahedrons. The tunable visible‐band PL...

The microstructural evolution and mechanical behavior of cast duplex stainless steels (CDSSs) at 400 °C for different thermal aging times were investigated by transmission electron microscope (TEM) small punch test (SPT). results showed that the spinodal decomposition in ferrite was main reason decrease toughness, G-phase did not play an important role embrittlement process. change membrane stretching zone (Wm) played SPT load-displacement curve before after aging. During deformation process...

Functionalized knitted fabric, as a kind of flexible, wearable, and waterproof material capable conductivity, sensitivity outstanding hydrophobicity, is valuable for multi-field applications. Herein, the reduced graphene oxide (RGO)-coated fabric (polyester/spandex blended) prepared, which involves use graphite (GO) by modified Hummers method in-situ chemical reduction with hydrazine hydrate. The treated exhibits high electrical conductivity (202.09 S/cm) an hydrophobicity (140°). associated...

Article Multi-Scale Class Attention Network for Diabetes Retinopathy Grading Hongyu Chen 1, Ronghua Wu Tao Wenjing Xu Hongzhe Liu 3, Cheng and Muwei Jian 1,2,* 1 School of Information Science Technology, Linyi University, 276000, China 2 Computer Shandong University Finance Economics, 250014, 3 Beijing Key Laboratory Service Engineering, 100101, Beijing, * Correspondence: jianmuweihk@163.com Received: June 2023 Accepted: 21 July Abstract: retinopathy (DR) is a universal eye disease, which...

Water quality and waste management are two chief problems that the modern world is struggling with.Intensified development of industry not only leads to production large amounts solid must be stored in landfills but can also result contaminant emissions into environment.Enormous quantities ash produced from coal combustion have been a long-term problem industry.Literature studies show fly used as material produce cheap efficient zeolite-type adsorbents due abundance alumina-silicates their...

A MEMS electric field sensor is presented with wide measurement resolution and adjustable sensitivity. The sense membrane mounted using torsional springs employs opposite biased electrodes on its surface, causing rotation in presence of an field, enabling operation without reference ground. Control electrode bias enables linear range from V/m to MV/m. Compared earlier works vertical moving membranes, higher sensitivity achieved for the same voltage. Employing on-board electronics enable...

The construction of the charging station and battery-swap can ensure development electric vehicles industry. In paper, difference is investigated, including economic cost benefit different mode. addition, factors affecting analyzed. end, problems for battery swap in Chongqing are

Two novel thermally stable and insensitive 3,6-dinitropyrazolo[4,3-c]pyrazolebased energetic compounds, namely 1,4-bis(2',4',6'-trinitrophenyl)-dinitro[4,3-c]pyrazole (DTNBDNP) 1,4-bis(2',4'-dinitrophenyl)-3,6-dinitro[4,3-c]pyrazole (DDNBDNP) were firstly reported. DTNBDNP DDNBDNP synthesized via the condensation reaction characterized by nuclear magnetic resonance spectra, infrared spectroscopy, elemental analysis, as well differential scanning calorimetry (DSC). decompose exothermically at...

Timely maintenance of the key equipment in valve cooling system plays an important part maintaining stable operation a flexible DC converter station. In order to accurately locate and recognize defects from infrared images motor circulating pump, fault detection method based on improved YOLOv3 is proposed this paper. First, Multi-Scale Retinex with Chromaticity Preservation (MSRCP) image enhancement algorithm Y component increase contrast, which makes target more prominent. Then...

Accurate segmentation of retinal vessels from images is critical for the detection and diagnosis many ocular diseases associated cardiovascular diseases. However, complex structure vessels, low contrast between background various noises generated by medical imaging systems make vessel a great challenge. To address these challenges, we propose an architecture called CM-Unet accurate blood improving U-Net image model in this paper. Specifically, achieve cross-layer cascading reuse features...