A series of economical and flexible fabrics were prepared using high-strength polyester yarns with different fabric structures, weft density number layers. The effect these factors on quasi-static puncture resistance was comparatively studied. failure mode the analyzed SEM photographs. Findings indicate that structure affected property fabrics, plain had better than twill satin fabrics. max force energy 160 yarn/10 cm reached values which 107.43 N 0.44 J, respectively. layers a linear...

The accumulation of intracellular reactive oxygen species (ROS) is widely recognized to stimulate the development osteoclasts, a crucial factor in onset osteoporosis. ROS scavenging capability Prussian blue nanoparticles (PBNPs) exceptional, and they possess excellent biocompatibility. However, effects PBNPs on osteoporosis remain unknown. Present study aimed investigate whether could inhibit osteoclast differentiation prevent ovariectomy (OVX)-induced bone loss by suppressing ROS. In vitro...

Abstract Background Circadian rhythm is crucial to the function of immune system. Disorders circadian can contribute inflammatory diseases such as Ulcerative colitis (UC). This Mendelian Randomization (MR) analysis applies genetic tools represent aggregated statistical results exposure disorders and UC its comorbidities, allowing for causal inferences. Methods Summary statistics protein, DNA methylation gene expression quantitative trait loci in individuals European ancestry (pQTL, mQTL,...

Although diffusion model has shown great potential for generating higher quality images than GANs, slow sampling speed hinders its wide application in practice. Progressive distillation is thus proposed fast by progressively aligning output of N-step teacher sampler with N/2-step student sampler. In this paper, we argue that distillation-based accelerating method can be further improved, especially few-step samplers, our Classifier-based Feature Distillation (CFD). Instead images, distill...

The variation propagation in mechanical assembly is an important topic several research fields, such as computer aided tolerancing (CAT) and product quality control. Mathematical models analysis methods have been developed to solve this practical problem. Tolerance which based on the rigid hypothesis can be used simulate mass manufacturing assembly. state space model stream of theory are mainly applied flexible part However, precision machine tool assembly, both tolerance design process...

A fractional-N frequency synthesizer with constant loop bandwidth is presented. This can be applied to the multi-mode positioning receiver seven modes in three systems. In all it has and work stably by using improved adjusting method charge pump biasing current linear varactor VCO (voltage-controlled oscillator). Simulations show that this meets requirements of high performance receiver. For each mode, in-band out-of-band phase noises are not lager than -95dBC/Hz -119dBC/Hz@1MHz,...

This paper presents a novel bamboo/wood-steel hybrid frame which uses engineered bamboo products as beams and steel columns. The columns are jointed by an innovative connection incorporates hinge two brackets to carry shear force moment from the end of beam, respectively. bracket consists segments, i.e. joint segment connected beam other segment, serves energy dissipation panel (EDP), via base panel. By this way, can provide sufficient initial stiffness for serviceability requirements...

In this paper, a restoring force model, composed of trilinear skeleton curve and hysteretic rules, is proposed based on nine pseudostatic tests the energy‐dissipation joint under horizontal low cyclic loading. The critical points simplified are obtained via theoretical derivation FE simulation. rules for joints as concave hexagon, where parameters optimized by genetic algorithm (GA). Using established curve, three different working stages, i.e., elastic, hardening, softening, were divided...

A fast-locking fractional-N frequency synthesizer with a fourth-order PLL is presented for receiver of multiple positioning systems. In order to reduce the locking time new method only performing LPF structure transformation proposed, which exploits large bandwidth without changing charge-pump current during transient state. The third-order second-order state 10 times larger than that in phase-locked Furthermore, pre-charging circuit and unchanged can significantly accelerate phase locking....

Knowledge distillation has recently become a popular technique to improve the model generalization ability on convolutional neural networks. However, its effect graph networks is less than satisfactory since topology and node attributes are likely change in dynamic way this case static teacher insufficient guiding student training. In paper, we tackle challenge by simultaneously training group of an online fashion, where knowledge plays role as virtual structure changes effectively captured....

The establishment of FCEV finite element model the subframe is based on Hypermesh platform, and a new structure designed in accordance with stiffness strength analysis original all conditions. High-strength steel materials are used to optimize design this structure, which result optimal size. Through comparative strength, stiffness, mode shape quality one, it verified that reasonable feasible.

The research progress of electric heating elements is summarized in terms element type and thermal performance evaluation. Their shortcomings are summarized, the development trend pointed out to provide help direction guidance for element.

In this paper, we present a new wideband low noise amplifier which operate in UHF band for spectral sensing the receiver of cognitive radios. The circuit employs noise-canceling technique, and can achieve higher gain lower power dissipation. method shunt-resistive feedback is adopted achieving broad bandwidth. LNA designed by CMOS 0.18 um RF technology. Simulated results show that 18-21 dB, figure less than 4 consumes only 11.2 mW at 1.8 V supply.

Pseudo-static tests of a novel energy-dissipation connection, comprised hinge and two steel brackets, have proven their reliability superior capability. To verify the effectiveness connection further, full-scale one-story one-bay engineered bamboo-steel hybrid frame jointed with connections was investigated through experimental test finite element analysis (FEA) in this paper. The results showed that failure mode restricted local buckling panels (EDPs) innovative connections, whereas no...

As a transportation infrastructure, bridge plays an important role in the region connectivity and urban prosperity, brings tremendous convenience to people's daily life travel. The operation management systems of bridges are more convenient owing popularization artificial intelligence. Specifically, knowledge bases field not only contribute intelligent maintenance but conducive enhancing efficiency decisions. One predominant methods construct automatically is relation extraction which aims...

In order to evaluate the reliability of vehicle design and safety performance, analysis software is applied establish model automotive joint stiffness; Body stiffness vehicles benchmark vehicles; Reasonable feasibility body are verified by comparison.

To solve the problem of stability multi-mode fractional-N synthesizer during mode transitions, a method calibrating charge pump current according to divider ratio is proposed in this paper stabilize loop bandwidth. This keeps variation bandwidth within smaller range different ratios. A using can operate stably seven modes three positioning systems. Simulation results show that normalized I <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">CP</sub>...

Stress and deformation analysis of 950 mill housing was done by means ANSYS to calculate the maximum stress deformation. Strength stiffness roll were checked meet requirements. The weakness revealed structure for housing, it is significant similar designs.