Rechargeable Zn-I2 batteries featuring intrinsic safety and high energy density demonstrate promising energy storage prospects. However, the poor interface stability of the Zn anode and the undesirable shuttle effect ...
详细信息
This study presents a novel microwave humidity sensor that utilizes a complementary interdigital capacitor resonator (CIDCR), an advanced design derived from the traditional complementary split ring resonator (CSRR) s...
详细信息
Epithelial monolayers are subjected to various mechanical forces, such as stretching, shearing, and compression. Thus, its mechanical response to external loadings is essential for its biological functions. However, t...
详细信息
Epithelial monolayers are subjected to various mechanical forces, such as stretching, shearing, and compression. Thus, its mechanical response to external loadings is essential for its biological functions. However, the mechanism of the fracture failure of the epithelial monolayer remains poorly understood. Here, by introducing a new type of topological transition, i.e., detach transition or T4 transition, we develop a modified cellular vertex model to investigate the rupture of the cell monolayer. Interestingly, we find a brittle-to-ductile transition in epithelial monolayers, which is controlled by the mechanical properties of single cells and cell-cell contacts. We reveal that the external loadings can activate cell rearrangement in ductile cell monolayers. The plastic deformation results from the nucleation and propagation of “pentagon-heptagon defects” in analogy with the topological defects commonly seen in 2D materials. By using a simplified four-cell model, we further demonstrate that the brittle-to-ductile transition is induced by the competition between cell rearrangement and cell detachment. Our work provides a new theoretical framework to study the rupture of living tissues and may have important implications for many other biological processes, such as wound healing and tissue morphogenesis.
This paper presents a collaborative fall detection and response system integrating Wi-Fi sensing with robotic assistance. The proposed system leverages channel state information (CSI) disruptions caused by movements t...
详细信息
In recent decades, extreme climate events have become a major problem worldwide. To understand the uncertainty in the response of extreme events to global warming, regional assessments are required for various clima...
In recent decades, extreme climate events have become a major problem worldwide. To understand the uncertainty in the response of extreme events to global warming, regional assessments are required for various climatic and geographic regions. The spatiotemporal distribution of extreme temperature events in the Yangtze River Economic Belt (YREB) from 1960 to 2019, including interannual changes and their teleconnections with solar activity and large-scale atmospheric circulation, were analyzed using eight indices of extreme temperature events. Over the past six decades, the climate in the YREB region has seen a warming trend, characterized by an increase in extreme warm events and a decrease in extreme cold events. The extreme temperature indices exhibit strong spatial variability. The warm extremes display a significant upward trend across the YREB, while cold extremes are primarily concentrated in the western part of the region. In recent decades, both warm and cold extremes have significant interannual variations, and these events predominantly oscillate over periods of less than four years. After 1985, the relationship between El Ni?o-Southern Oscillation (ENSO), Arctic Oscillation (AO), Pacific Decadal Oscillation (PDO) and extreme temperature events has changed significantly compared with pre-1985, and the direction of the phase angle can determine the positive and negative effects of the two time-series. ENSO, AO and PDO mainly have positive impacts on extreme temperature events, with ENSO and AO exerting greater impacts than PDO. In contrast, solar activity mainly has a negative impact on these events. Furthermore, the notable interdecadal changes in extreme temperature events, especially warm extremes, may be caused by the shift in the PDO phase. Therefore, the results of the study are important for the YREB region to take effective measures to mitigate the potential impacts of human activities on regional warming.
Reusing shipping containers for residential purposes offers a promising approach to address global energy consumption challenges from economic and environmental perspectives. This study parametrically designed hybrid ...
详细信息
This paper provides a solution concept using digital twin technology for the battlefield environment for the air combat training. The scheme is divided into two aspects: digital twin battlefield and digital twin aircr...
详细信息
ISBN:
(数字)9798350387780
ISBN:
(纸本)9798350387797
This paper provides a solution concept using digital twin technology for the battlefield environment for the air combat training. The scheme is divided into two aspects: digital twin battlefield and digital twin aircraft. The digital twin battlefield scheme discusses the three-dimensional modeling method of the battlefield and the update mechanism of battlefield environment data. The digital twin aircraft model scheme discusses the construction ideas of the aircraft twin model, and discusses the future application scenarios. With the advancement of technology and the iterative update of application scenarios, the digital twin air combat training battlefield will gradually realize various functions and explore more innovative application modes, realize the virtual environment interaction and digital twin function application of the entire battlefield environment.
Vision-based cooperative motion estimation is an important problem for many multi-robot systems such as cooperative aerial target pursuit. This problem can be formulated as bearing-only cooperative motion estimation, ...
详细信息
In the current work, the correlation between microstructural features and fatigue crack growth (FCG) behaviors in Ti-6Al-3Nb-2Zr-1Mo alloy is investigated by a combination of electron backscatter diffraction (EBSD), e...
详细信息
The measurement of holistic gear deviations (HGD) is a fast-developing field of gear measurement technology in recent years. Line laser measurement is an effective approach to measure the HGD, and is beginning to be a...
详细信息
暂无评论