Abstract Lower extremity robotic exoskeletons (LEEX) can not only improve the ability of human body but also provide healing treatment for people with lower dysfunction. There are a wide range application needs and development prospects in military, industry, medical treatment, consumption other fields, which has aroused widespread concern society. This paper attempts to review LEEX technical development. First, history is briefly traced. Second, based on existing research, classified...

Face animation aims to render the source image according motion of driving images while preserving identity information image. Despite significant advancements with introduction additional information, literature lacks a thorough exploration preservation. This paper proposes Prior Structure-Assisted Identity-Preserving (PSAIP) network for face animation. Specifically, we introduce priors portrait segmentation and landmarks, which provide rich geometric masking background interference...

A fully biobased solvent-free coating composed of tannic acid (TA) and taurine (TN) was constructed introduced on polyamide 6 (PA6) fabric by a dipping-nipping process to improve the flame retardancy, antibacterial properties, UV resistance fabric. Fire behavior characterization indicated that presence TN/TA eliminated melt dripping PA6 increased limiting oxygen index 26.8% from 19.4% control sample. The total heat release smoke production coated sample reduced 31.3% 66.7%, respectively,...

Staircases are some of the most common building structures in urban environments. Stair detection is an important task for various applications, including environmental perception exoskeleton robots, humanoid and rescue robots navigation visually impaired people. Most existing stair algorithms have difficulty dealing with diversity structure materials, extreme light serious occlusion. Inspired by human perception, we propose end-to-end method based on deep learning. Specifically, treat...

Stairs are common vertical traffic structures in buildings, and stair detection tasks important environmental perception for autonomous mobile robots. Most existing algorithms have difficulty combining the visual information from binocular sensors effectively ensuring reliable at night case of extremely fuzzy clues. To solve these problems, we propose a network with red-green-blue (RGB) depth inputs. Specifically, design selective module, which can make learn complementary relationship...

There are problems associated with facial expression recognition (FER), such as occlusion and head pose variations. These two lead to incomplete information in images, making feature extraction extremely difficult. Most current methods use prior knowledge or fixed-size patches perform local cropping, thereby enhancing the ability acquire fine-grained features. However, former requires extra data processing work is prone errors; latter destroys integrity of In this paper, we propose a Sliding...

In this paper, a novel powered lower limb exoskeleton prototype called PTEXO for reducing user burden and enhancing following comfort is presented. The designed with new control strategy, Enhanced Sensitivity Amplification Control (ESAC), improves of lower-limb locomotion through three aspects, namely, obtaining high-quality angular acceleration signals, adjusting sensitivities among different model items, increasing continuity during gait phase transitions. This opens option in terms...

Potato is a kind of cultivated crops with long history. It the third most important food crop in world, next to wheat and corn, plays an role agricultural production. late blight (PLB) one main diseases, which can cause 20-40% yield loss bring great losses industry. Therefore, it very identify disease quickly effectively take correct control measures. In this study, new outdoor classification method for potato was proposed, data collected were divided into 5 categories. Due small number...

In this paper, Huolinhe lignite was selected as the experimental sample, using microwave modification and ultrasonic separately improvement methods. The three-dimensional molecular models of HLH before after were established base on parameters obtained by 13C NMR, X-ray photoelectron spectroscopy (XPS), Raman (Raman), Fourier transform infrared (FTIR). After treatment, methylene carbon in coal sample structure mostly exists form long straight chains, -OH content oxygen atoms increases, CO-...

The exoskeleton robot is a wearable electromechanical device inspired by animal exoskeletons. It combines technologies such as sensing, control, information, and mobile computing, enhancing human physical abilities assisting in rehabilitation training. In recent years, with the development of visual sensors deep learning, environmental perception exoskeletons has drawn widespread attention industry. Environmental can provide certain level autonomous decision-making ability, enhance their...

Abstract Time-sensitive network requires monitoring the network’s operational status in real-time and dynamically changing traffic scheduling configuration. A method that can timely obtain operation information is needed. In this paper, a for proxy hosts to send packets proposed, which enables visits collection of all switches through single packet. Then, it returns packet CNC controller processing. To verify method, TSN ring topology simulated, mainly delay each hop node. The simulation...

The main problem of coal direct chemical looping hydrogen generation (CLHG) is that ash and oxygen carrier (OC) cannot be effectively separated, which makes the OC activity reduced after multiple cycles. In this study, a double plate-fixed bed reactor adopted. gasification reduction reaction were integrated in same furnace, production characteristics ZhunDong by studied. Cu-Fe composite was prepared synthesis method. results show higher copper oxide content smaller particle size, better...

This paper presents a new two-step method to estimate the ratios of moment inertia, direction angular momentum in inertial frame, attitude and velocity space noncooperative tumbling target, based on measured relative from servicing spacecraft. At beginning, target's body frame should be determined its geometrical shapes. In first step, by utilizing conservation kinematic equations, inertia matrix is obtained using least square singular value decomposition, then principal axis between each...

This paper presents the results of theoretical and experimental research directed to creating low-voltage X- Ku-ranges magnetrons with two energy outputs. The application second (reactive) output in a design conventional magnetron has enabled additionally realize frequency tuning (adjustment) mode stabilization using high-Q resonator reactive output. It shown that an offered possesses improved performances (for example, stability is not worse than 10 <sup...