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Preparation and research of epoxy modified by carboxyl-terminated polybutylene adipate at room temperature
NANOFILLERS IMPROVEMENT RESIN
2023/12/1
In this study, carboxyl-terminated polybutylene adipate (CTPBA) was used to modify epoxy resin, and the modified epoxy resin was cured by a room temperature rapid curing agent (T-31). The effects of C...
Room-Temperature Green Recyclable Epoxy Composites with Enhanced Mechanical and Thermal Properties Cross-Linked via B-O-C Bonds
Dynamic covalent bond Epoxy resin Green chemistry Polymerization Thermoset composites
2023/11/30
Without any catalyst, a novel way for the preparation of epoxy (EDSPs) and their composites by cross-link via dynamic B-O-C bonds was presented. The EDSPs with a glass transition temperature (T-g) of ...
[成果]北京师范大学物理学系张金星和沈卡小组与合作者以“Strain-Driven Dzyaloshinskii-Moriya Interaction for Room-Temperature Magnetic Skyrmions”为题发表学术成果（图）
磁性体系；多铁性材料；磁电耦合
2021/11/1
Dzyaloshinskii-Moriya（DM）相互作用，是一种反对称自旋交换作用，于上个世纪六十年代由I. Dzyaloshinskii利用唯象理论提出，并由T. Moriya在超交换相互作用中考虑自旋轨道耦合而发展的微观理论，被用来解释磁性体系中诸多新奇物理现象（自旋玻璃中的各向异性场、多铁性材料中的磁电耦合、自旋波的非对称色散关系、非共线磁结构等）。近十几年来，由于DM相互作用而实现的螺旋...
Physicists observe room-temperature superconductivity（图）
room-temperature superconductivity
2020/10/23
Researchers at the University of Rochester and the University of Las Vegas, Nevada, have made a breakthrough in the long sought-after quest for a room-temperature superconductor, which they call the "...
System's ability to boost laser precision at room temperature increases its usability（图）
boost laser precision room temperature increases usability
2020/7/17
Physicists at the Massachusetts Institute of Technology have designed a quantum "light squeezer" that reduces quantum noise in an incoming laser beam by 15%. It is the first system of its ki...
Scientists observe a single quantum vibration under ordinary conditions: Studying a common material at room temperature, researchers bring quantum behavior 'closer to our daily life'
quantum vibration daily life quantum behavior common material room temperature
2019/10/10
When a guitar string is plucked, it vibrates as any vibrating object would, rising and falling like a wave, as the laws of classical physics predict. But under the laws of quantum mechanics, which des...
The 23rd International Symposium on Room-Temperature Semiconductor Detectors (RTSD)
semiconductor radiation detectors imaging arrays
2016/7/21
The 23rd International Symposium on Room-Temperature Semiconductor Detectors (RTSD) represents the largest forum of scientists and engineers developing improved semiconductor radiation detectors and i...
Plantaricin IIA-1A5 from Lactobacillus plantarum IIA-1A5 Retards Pathogenic Bacteria in Beef Meatball Stored at Room Temperature
Lactobacillus plantarum Pathogenic Bacteria
2016/6/2
This study aims to demonstrate the efficiency of antibacterial activity of plantaricin IIA-1A5 in meatball when stored at room temperature. The results revealed addition of plantaricin IIA-1A5 to meat...
Delayed Deproteinization Causes Methodological Errors in Amino Acid Levels in Plasma Stored at Room Temperature or -20°C
Amino Acid Assay Plasma Concentration Deproteinization Storage Blood Sample
2016/5/3
Deproteinization has been recognized as a prerequisite for amino acid analysis of plasma samples. For plasma stored at room temperature, delaying deproteinization for 30, 60 or 120 minutes did not res...
Room Temperature Ultra-sensitive Mass Spectrometer via Dynamic Decoupling
Room Temperature Ultra-sensitive Mass Spectrometer Dynamic Decoupling
2016/1/22
We propose an ultrasensitive mass spectrometer based on a coupled quantum-bit-oscillator system. Under dynamical decoupling control of the quantum bit (qubit), the qubit coherence exhibits a comb stru...
Researchers Find New Phase of Carbon,Make Diamond at Room Temperature
Researchers Carbon Diamond Room Temperature
2015/12/8
We report the discovery of new phase of carbon (referred to as Q-carbon) and address fundamental issues related to direct conversion of carbon into diamond at ambient temperatures and pressures in air...
Strange quantum phenomenon achieved at room temperature in semiconductor wafers
Argonne National Laboratory David Awschalom Innovation Institute for Molecular Engineering Quantum particles
2015/12/7
A new study has found a link between abrupt ocean warming at the end of the last ice age and the sudden onset of low-oxygen, or hypoxic conditions that led to vast marine dead zones.Results of the stu...
Argonne scientists announce first room-temperature magnetic skyrmion bubbles
Argonne scientists room-temperature magnetic skyrmion bubbles
2015/6/18
New ideas are bubbling up for more efficient computer memory.Researchers at UCLA and the U.S. Department of Energy’s Argonne National Laboratory announced today a new method for creating magnetic skyr...
Metal-Containing Functional Polmers: (I) Room Temperature magnetic Materials and (II) Anion Exchange Membranes
Pure sciences Applied sciences Anion exchange membranes Hybrid nanostructures Magnetic materials Metal cations Metal-containing polymers Ring-opening metathesis polymerization
2014/11/21
Nanostructured magnetic materials are important for various applications, and hence their development is critical for the advancement of science and technology. Coupling self-assembly to the generatio...
Experimental study of rare earth element partitioning between calcite and sodium chloride solution at room temperature and pressure
rare earth elements lanthanide calcite partition coefficient calcium carbonate
2017/4/11
The rare earth element (REE) partition coefficients between calcite and aqueous solution were obtained experimentally
under the conditions of pH, ionic strength and REE concentration level in the par...