Researchers demonstrate that β relaxations are intrinsic to supercooled liquids and glasses, connecting them to outstanding issues in glassy physics and material sciences. The study suggests that metallic glasses could be used to design glassy materials with specific properties, such as ductility.
Researchers divert a Chinese river to mitigate environmental disasters and propose an integrated approach to manage water resources, ecological health, and economic development. This study provides a potential model for sustainable development of other inland river basins.
Researchers from Chongqing University have discovered a new method to compress laser linewidth based on Rayleigh backscattering, achieving ultra-narrow linewidths of hundreds of hertz. This breakthrough enables the development of portable laser devices with precise optical signals, revolutionizing fields like spectroscopy and sensing.
The Chinese power grid is facing significant challenges in modernization, including improving asset utilization rates and integrating distributed generation. According to a recent study, the annual average utilization rates of major 10kV equipment were below 40% in 40 Chinese cities, far below comparable levels in developed countries.
Researchers discover seven out of thirteen new families of periodic orbits are unstable, contradicting previous predictions. The study uses a 'Clean Numerical Simulation' approach to verify the findings and reveals the potential for chaotic dynamic systems.
Researchers develop a new liquid-phase 3D printing technique that allows for the rapid manufacturing of conductive metal objects with a low melting point alloy ink. The process prevents oxidation and offers advantages over conventional methods, including high speed and flexibility in controlling temperature and flow fields.
A new study estimated carbon emissions from cropland expansion in Northeast China between 1680 and 1980, finding forest reclamation accounted for 60% of total emissions. The conversion of non-forest ecosystems also played a significant role in triggering carbon emissions.
Scientists from China and the US report results from the first stage of the PandaX-I experiment, a dark matter search in an underground lab. The data from this experiment place strong constraints on previously reported dark matter-like signals.
The study compares the interactions between silver nanoparticles and two thiols, mercaptohexanol (MH) and cysteine. MH forms a sparingly soluble silver(I) thiolate complex AgSRm on the surface, while cysteine replaces the citrate capping agent to form cysteine capped nanoparticles.
A recent study found that expressive suppression is effective in reducing negative emotion in Chinese culture, even faster than cognitive reappraisal. The study used high temporal-resolution Event-Related Potentials and a rigorous experimental design to compare the effectiveness of both techniques.
Researchers have found that non-coding RNA studies can improve crop resistance to pathogens and pests, reducing the need for chemical pesticides. This new approach uses small RNAs to repress the expression of target genes, promoting healthier plant development and improved nutritional value.
Recent research reveals that breast milk microbiomes are maintained by niche differentiation and dominant species, contradicting the traditional neutral theory. This finding has significant clinical implications for understanding mastitis and other diseases associated with breast milk.
Rice scientists have made crucial contributions to understanding its complex agronomic traits by employing a genetics-based strategy. The study has identified key genes involved in shoot architecture, leaf development, and grain quality, shedding light on the molecular mechanisms underlying these processes.
Researchers have developed a new method using laser-induced breakdown spectroscopy to distinguish between gutter oil and safe, edible oil. The technique uses principal component analysis and artificial neural networks to detect toxic substances like bacteria and heavy metals.
Researchers used same-beam VLBI technology to monitor the Chang'E-3 rover's movement, measuring sensitivity of 50-100mm. The technique precisely tracked the rover's position relative to the lander and Earth.
The era of Big Data presents new opportunities for personalized treatments and services, but also introduces challenges in statistical analysis, bias sampling, and measurement errors. Researchers focus on developing new computational infrastructure and data-storage methods to handle massive datasets.
Researchers have made a breakthrough in evaluating long bone fractures using ultrasound, providing a new method for monitoring healing. The study found that the amplitude of ultrasonic guided waves can quantify fracture degree and depth, offering a non-invasive diagnostic tool.
Graphene-based planar micro-supercapacitors provide a promising solution for on-chip energy storage with high power density and fast charging capabilities. The devices can deliver a superior cycling lifetime of millions of cycles, making them suitable for applications that require high power over a short timeframe.
Researchers used 3D models of the woodpecker to understand its anti-shock biomechanical structure, which stores most impact energy in the body and reduces it in the head. This study could provide guidance for designing anti-shock devices and structures for humans.
Researchers found that frontal EEG lateralization is a key indicator of emotional flexibility, with left-sided lateralization associated with flexible responses and right-sided lateralization linked to inflexible ones. The study suggests that training can improve left-sided lateralization and enhance emotional flexibility.
Researchers identified proteinaceous binding media used in polychrome layers of Qin Shihuang's terracotta army. Natural pigments and binding media were found to be composed of cinnabar, apatite, azurite, and malachite.
Direct C–H transformations aim to perform synthetic chemistry in a greener and more atom-economical way. Several generations of chemists collectively made significant progress in inert aliphatic C–H bond functionalization.
Researchers have developed a new ultrafast imaging technique using multi-wavelength lasers to overcome the limitations of traditional imaging systems. This breakthrough enables real-time optical imaging with high resolution and fast frame rates.
Researchers at China's PandaX facility aim to detect direct evidence of dark matter interactions with xenon nuclei and observe double-beta decay. The new detector is designed to distinguish between nuclear recoils and electron recoils, with promising results from previous experiments like XENON100.
Researchers review the role of PIWI proteins and piRNAs in regulating gene expression during germline development and beyond. Recent studies have identified novel mechanisms of epigenetic programming, DNA rearrangements, mRNA turnover, and translational control in both germline and somatic tissues.
Chinese researchers discovered that people with major depressive disorder have impaired self-face recognition, including increased self-focus and sensitivity to the self-face. This impairment cannot be attributed to medication status and suggests that depression is associated with abnormal self-bias.
Researchers have observed an ordered water monolayer on various solid surfaces at room temperature, contradicting the classical understanding of water's behavior. This phenomenon exhibits novel properties and affects surface characteristics, such as electrochemical property, wetting behavior, and friction.
Researchers have found ferromagnetic order with Tc up to 230 K in a new DMS system, overcoming the obstacle of lower Tc compared to classical systems. The system exhibits spontaneous magnetization and clear signatures of ferromagnetism, including negative magnetoresistance.
The PandaX experiment at the China Jinping underground laboratory is using a liquid xenon dual-phase technology to detect dark matter and neutrinoless double beta decay. The facility has been optimized for low background radiation, with a shielded environment protecting against cosmic muons.
Researchers from Minzu University of China conducted geometric morphometric analysis on the sides faces of Tu and Zang ethnic groups, revealing distinct variations and common features. The study aimed to contribute to research on Chinese facial profile characteristics and variations.
A new type of infrared photodetector has been proposed, featuring a nanoporous ZnO/n-Si structure that exhibits a double peak in transient photovoltage decay under near-infrared pulsed light irradiation. The device's photoresponse is highly sensitive to slight changes in laser pulse energy.
Researchers propose an architecture-centric method, ABC, to unify software development phases and control high-level structural complexity. The method realizes consistent, flexible, and systematic modeling and control of software complexity across the whole lifecycle.
A team of CAS researchers developed biomimetic nanochannels to harness the power of confined water in biological systems. Inspired by nature's intelligent design, they created a strategy for designing smart nanochannels with applications in energy conversion systems.
The Laboratory for Shock Wave and Detonation Physics Research at CAEP made significant progress in optimization of physical design, material processing, and experimental measurement technology. Experimental data on equation of state for materials under ultra-high pressure was obtained, leading to advancements in hypervelocity launch th...
A new hypothesis resolves the inconsistency between energy expenditure and maximum entropy production principles, proposing that a system minimizes resistance to its driving process. This refinement unifies the principles under a single framework, with applications in hydrogeology and other fields.
Scientists use LiDAR to create detailed topographical models of the Haiyuan fault zone, providing new insights into tectonic geomorphic features and displacement measurements. The high-resolution digital models enable accurate identification of fault traces and improved site-specific fault activity studies.
A recent study reveals significant resonance cycles between solar activity and Earth's surface temperature, providing a possible explanation for recent global warming. The research uses wavelet analysis and cross-correlation methods to investigate the periodicities of solar activity and its correlations with the Earth's temperature dur...
Researchers studied a rat's balancing strategy to lateral impact, finding it bends flexible body to absorb energy and resists force through side-sway. The study reveals key mechanisms for animal stability during locomotion and inspires improvements in bionic robots.
The big data era presents both challenges and opportunities for modeling and simulation, as it requires adapting to novel research thinking and methods. The paper highlights the need for exploratory research combining simulation-based engineering and science to develop a new simulation paradigm.
A new type of Digital Zenith Telescope prototype has been developed in China, utilizing CCD camera and high-precision tiltmeter to improve efficiency and accuracy. The instrument can measure the deflection of the vertical and variations of the local plumb line, with single-observation accuracy up to 0.15-0.3
Researchers have discovered a single-ovary reproductive system in the basal bird Jeholornis and derived enantiornithine birds from China, indicating that this adaptation occurred gradually during the evolution of dinosaurs and basal birds. This finding supports the hypothesis that birds lost one ovary due to energetic pressures of flight.
A new concept for counter-rotating wind turbines in tandem arrangements has been developed to improve power production performance. Experimental studies have shown that this configuration can increase energy utilization by up to 20%, particularly beneficial for onshore wind farms with smaller spacing between turbines.
The study of compressible mixing layers is crucial for propulsion design in high-speed vehicles. Researchers introduced a new framework called SED to analyze experimental data, providing evidence for nonlinear growth in CML. The findings suggest that lower growth rates are associated with large-scale vortices and inflow conditions.
The researchers developed a promising hybrid nanoobject for efficient two-photon fluorescence probes using gold nanoshells. The nanoshell acts as an optical antenna, enhancing the fluorescence intensity and stability of fluorescent emitters.
Researchers propose a new aerothermoelastic analysis method for hypersonic flight vehicles, combining two-way coupling and unified hypersonic lifting surface theory. The method considers thermal conduction and structural elastic deformation to improve analytical precision and calculate flutter speed.
A novel plasma actuator improves plasma authority at high wind speeds, suppressing boundary layer separation and reducing model vibration on a UAV. The study demonstrates an important role of plasma actuators in real applications.
Researchers studied the competition of multiple Gortler modes in hypersonic boundary layers, highlighting the importance of the trapped-layer mode (mode T) in flow transition. The study found crossovers between mode T and W with specific parameters.
A new study finds early fossil sponges exhibiting tetraradial symmetry, a four-fold arrangement of spicules, in well-preserved fossils from the Cambrian period. This symmetry was previously unknown in living sponges and suggests a more complex ancestry than previously thought.
The emergence of big data presents both challenges and opportunities for databases, necessitating the development of new technologies and systems to handle vast amounts of complex data. Various distributed processing frameworks and systems have been proposed to address these issues.
The paper proposes a formal passive testing approach to evaluate the conformance and performance of Extensible Messaging and Presence Protocol (XMPP) in IoT environments. The approach uses Horn clauses to express properties checked on extracted protocol traces, enabling the testing of individual nodes in complex networks.