With the development of infrared detection technology and improvement military remote sensing needs, object networks with low false alarms high accuracy have been a research focus. However, due to lack texture information, rate is high, resulting in reduced accuracy. To solve these problems, we propose an network named Dual-YOLO, which integrates visible image features. ensure speed model detection, choose You Only Look Once v7 (YOLOv7) as basic framework design images dual feature...

A remarkable feature of Alvarez lenses is that a wide focal length tuning range can be achieved using lateral displacement rather than commonly used axial translation, thus, reducing the overall varifocal imaging systems. Here, we present novel lens elements based on actuated by dielectric elastomer (DE). The proposed are composed component and scanning component. Based elements, an system built to realize ultra-wide with selectable region interest. have variable focus function structure DE...

Ti3C2Tx MXene often suffers from poor lithium storage behaviors due to its electrochemically unfavorable OH terminations. Herein, we propose molecular-level interfacial chemistry regulation of with phytic acid (PA) directly activate Through constructing hydrogen bonds (H-bonds) between oxygen atoms PA and terminations on surface, charge distribution has been effectively regulated, thereby enabling sufficient ion-storage sites expediting ion transport kinetics for high-performance energy...

A stick-slip/inchworm hybrid rotary piezomotor based on a symmetric triangular driving mechanism, which can simultaneously achieve the benefits of both stick-slip and inchworm motors, was reported in this letter. It is principle and, inspired by clamping-releasing actions from it employs mechanism to generate clamping action during stick phase releasing slip phase. Compared with involves phase, thus resulting larger force. require active control coordination clamping/releasing modules...

Stick-slip piezoelectric actautors are promising with prinicipally unlimited stroke and positioning resolution. However, it is challenged a low load capacity, which limits the field of application. Various types compliant driving foot were proposed in literature to improve capacity but improved direction-dependent. To both forward backward directions, this paper proposes an approach via shared foot. The basic idea employ two actuators work way that either or stick-slip process involve...

Abstract Over the past two decades, pulsed‐laser three‐dimensional imaging flash lidar using avalanche photodiode (APD) arrays has attracted extensive research interest due to its great potential for both military and civilian applications. This invited paper gives a brief review of state‐of‐art APD arrays. The principle is briefly introduced. According working mode arrays, we divide current into types: linear‐mode Geiger‐mode. performances at Geiger‐mode are summarized. opportunities...

Owing to preferable anti-interference and anti-cumulative-error capabilities, polarized skylight navigation technology has been developed. However, in urban environments with extensive demand, the sky is usually partially obscured by buildings trees. Urban landscape obscurations polarization patterns that have not sufficiently studied can greatly influence accuracy. In this paper, we study generated summarize impacts of scenes on results. We also propose a full-sky imaging method adapted...

Abstract Background As one of the gamification elements, leaderboard, especially absolute is widely used in educational systems. However, empirical studies on optimal use condition leaderboard and underlying influence mechanisms are deficient. Objectives This study explored which difficulty was more conducive to learning performance context, when how it played a role. Methods To address these questions, this conducted 2 (dominant goal orientation: learning/performance) × (difficulty:...

In this Letter, we propose an optical edge detection method with adjustable resolution using a planar liquid crystal Alvarez lens (LCAL). A was fabricated by laser direct writing. When the focal length of changes and linearly polarized light (LP) passes through lens, angle between emitted left-handed circularly right-handed can be controlled, enabling detection. The adjust width from 32.5 μm to 73.7 without requiring any rotation or axial displacement. Moreover, it accomplish comprehensive...

Optical imaging systems using varifocal lenses have been widely used in many applications over the past several decades, such as machine vision devices, consumer electronic products, and medical instruments. Traditional often consist of multiple solid focal length refractive optical elements. The ability is obtained by dislocating these elements along axis specific distances mechanical driving mechanisms. It makes traditional suffer from bulky dimensions, slow response speed, complicated...

<title>Abstract</title> Background Endothelial dysfunction is a pivotal contributor to cardiovascular complications in individuals with diabetes. However, the precise role of macrophages and their exosomes diabetic milieu remains elusive. Methods Exosomes (Exos) were isolated from supernatants treated advanced glycation end products (AGE) or bovine serum albumin (BSA) using ultracentrifugation. Following coculture AGE-Exos BSA-Exos, human umbilical vein endothelial cells (HUVECs) subjected...

Endothelial dysfunction is a pivotal contributor to cardiovascular complications in individuals with diabetes. However, the precise role of macrophages and their exosomes diabetic milieu remains elusive. Exosomes (Exos) were isolated from supernatants treated advanced glycation end products (AGE) or bovine serum albumin (BSA) using ultracentrifugation. Following coculture AGE-Exos BSA-Exos, human umbilical vein endothelial cells (HUVECs) subjected CCK-8, EdU, cell migration, monocyte...

<title>Abstract</title> Human papillomavirus (HPV) infection is a major threat to women’s health worldwide. High-risk subtypes, particularly HPV16, require rigorous screening and long-term surveillance control cervical cancer. However, traditional HPV testing hampered by the need for nucleic acid extraction, reliance on specialized technicians, fluorescence detection equipment, limiting its suitability rapid on-site testing. In this study, we developed Concanavalin A-assisted extraction-free...

We propose and demonstrate a compact tunable lens with high transmittance using dielectric elastomer sandwiched by transparent conductive liquid. The liquid not only serves as the refractive material of but also works compliant electrode elastomer. overall dimensions proposed are 16 mm in diameter 10 height, optical is 92.2% at 380–760 nm. focal power variation <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:mo>−<!-- −...