Crashworthiness of Nomex ® honeycomb-filled anti-climbing energy absorbing devices - Xie S, Du X, Zhou H, Wang J, Chen P.
To investigate the energy-absorption characteristics of thin-walled metals and Nomex ® honeycomb composite structures, Nomex® honeycombs with five different specifications were applied to anti-climbing energy absorbing devices. Based on compression tests ... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Crashworthiness study of a subway vehicle collision accident based on finite-element methods - Wei L, Zhang L, Tong X, Cui K.
The investigation and reconstruction are fundamental to enable designers to improve the subway vehicle's crashworthiness. In this paper, a crashworthiness study of a subway vehicle collision accident in Beijing was conducted. Based on field investigation, ... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Design and analysis of a polyamide - steel hybrid A-pillar for increased vehicle roof structural integrity in rollover accident scenarios - Mahoso R, Parihar SS.
In a world where motor vehicles are the primary means of personal transportation, accidents have become common. One of the accident modes of note are rollover accidents which in most instances deals with the roof crush scenario. In roof crush, the A-pillar... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Design for AEBS test scenario applying domestic traffic accidents - Choi YS, Lim JH.
This study is a study on the development of AEBS test scenarios for traffic accidents in Korea, and was compared and analyzed using the Traffic Accident Analysis Program. To ensure the safety of passengers and pedestrians in traffic accidents, the number o... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Developing the crash modification model for urban street lighting - Saljoqi M, Behnood HR, Mirbaha B.
Urban street lighting is one of the effective measures to reduce the road crash frequency. In this research, it was tried to determine the crash modification factor for urban street lighting by considering the effective factors in crashes such as lane widt... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Evaluation of the 30km/h speed limit trial in the City of Yarra, Melbourne, Australia - Lawrence B, Fildes B, Thompson L, Cook J, Newstead S.
OBJECTIVE: Safe vehicle speeds were identified as a key element in a safe system approach to road safety. The City of Yarra in Melbourne, Australia has a 40  km/h default speed limit across their municipality, but wished to reduce the speed limit in local... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Factors impacting injury severity of crashes involving traffic barrier end treatments - Molan AM, Ksaibati K.
This paper seeks to identify variables affecting the severity of crashes involving traffic barrier end treatments. A field inventory was conducted to collect type, system height (from the ground to the top), lateral offset (from the edge of pavement), and ... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Investigations on the vertical buckling of railway vehicle's anti-climber - Zhou H, Mei M, Zhang J, Tu H.
From accident investigations it is found that under some unknown conditions the energy absorbing capacity and anti-overriding function of anti-climber are greatly reduced due to the serious vertical buckling. In order to analyse the vertical buckling mecha... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Mechanism of blunt spleen injury: a finite element analysis - Hu W, Shao Y, Li Z, Zou D, Wang H, Chen Y.
OBJECTIVE: To explore the biomechanical mechanism of blunt spleen injury based on finite element analysis. OBJECTIVE: A fist finite element model was used to simulate the impact at 4-8 m/s in the spleen area of THUMS4.0 human body model from the fr... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Observations on the relationship between crash frequency and traffic flow - Wagner P, Hoffmann R, Leich A.
This work analyzes the relationship between crash frequency N (crashes per hour) and exposure Q (cars per hour) on the macroscopic level of a whole city. As exposure, the traf fic flow is used here. Therefore, it analyzes a large crash database of the cit... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Optimum gas tank locating in van vehicle - front and side crash analysis consideration for passenger safety - Kasaei A, Aziz NA, Delgoshaei A, Tahir SM, Rezanoori A.
In this research, crash test results from CNG locating method optimization approach for crashworthiness and testing its safety are presented. The locating process is based on principal energy considerations inspired from the current design process in passe... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Pedestrian assessment: Is displaying automated driving mode in self-driving vehicles as relevant as emitting an engine sound in electric vehicles? - Faas SM, Baumann M.
Pedestrians rely on vehicle dynamics, engine sound, and driver cues. The lack of engine sound now constitutes an addressed pedestrian safety issue for (hybrid) electric vehicles ((H)EVs). Analogously, lacking driver cues may constitute a pedestrian safety ... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Peridynamic method to determine energy absorption characteristics of ordinary glass under impact load - Ma P, Li S, Zhou H, Zhao S, Wang P, Wan Z, Zhi B.
During the high-speed operation of trains, cars, and other forms of transport, there is a risk of collision with external objects, such as birds in flight. In the event of an impact, not only will the front of the vehicle be damaged, but the external objec... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Power laws and phase transitions in heterogenous car following with reaction times - Venkata Ramana AS, Jabari SE.
We study the effect of reaction times on the kinetics of relaxation to stationary states and on congestion transitions in heterogeneous traffic using simulations of Newell's model on a ring. Heterogeneity is modeled as quenched disorders in the parameters ... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Predictive modelling of injury severity in bicycle-motor vehicle collisions utilizing learning vector quantization: a case study of Britain's cycling capital - Siamidoudaran M, Siamidodaran M, Iscioglu E.
Cambridge is truly known as Britain's cycling capital but this has all been achieved without any real cycling infrastructure. Therefore, safety concern is the persistent barrier to cycling in Cambridge and its reputation is on the decline. Thus in response... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Severity analysis of road transport accidents of hazardous materials with machine learning - Shen X, Wei S.
OBJECTIVE: The aim of this study was to explore a suitable method for analyzing road transport accidents that involve hazardous materials and to explore the main factors that influence the occurrence of accidents of varying severity. METHODS: The 2... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

The derailment behaviour and mechanism of a subway train under frontal oblique collisions - Yao S, Zhu H, Yan K, Liu M, Xu P.
Frontal oblique collision is more likely to cause train derailment and result in more serious consequences. In order to investigate the effect of impact angle on the derailment behaviour and mechanism of a subway train under frontal oblique collisions, a f... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Traumatic rupture of the pectoralis major muscle with associated thrombosis of the cephalic vein as part of a seat belt injury following a motor vehicle accident: a case report - Pozder P, Jessel M, J ürgensen I, Struewer J.
We present the case of a young male patient who, among other injuries, suffered a complete rupture of the right-sided... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Associations of the neighborhood built environment with physical activity across pregnancy - Kershaw KN, Marsh DJ, Crenshaw EG, McNeil RB, Pemberton VL, Cordon SA, Haas DM, Debbink MP, Mercer BM, Parry S, Reddy U, Saade G, Simhan H, Wapner RJ, Wing DA, Grobman WA.
BACKGROUND: Several features of the neighborhood built environment have been shown to promote leisure-time physical activity (PA) in the general population, but few studies have examined its impact on PA during pregnancy. METHODS: Data were extract... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

A new model to estimate pedestrian deaths from speed-related interventions - Goel R.
OBJECTIVE: The S-shaped function of probability of pedestrian fatality with respect to impact speed of vehicle is well known in road safety literature. However, the implication of this evidence for changes in speed for a population of drivers has not been ... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

A numerical study on energy absorption capability of lateral corrugated composite tube under axial crushing - Jamal-Omidi M, Benis AC.
In this study, a comprehensive numerical investigation is carried out to evaluate the crashworthy behavior and the energy absorbing capacity of lateral corrugated composite tubes under axial loading. In this regard, a new lateral corrugated circle tube wit... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Body optimization approach of sedan structure for improving small overlap impact rating - Liu X, Liang R, Hu Y, Jiang C, Tang X, Bastien C.
Small overlap accidents of sedans often result in severe injuries. In this article, a crashworthiness design method, including engine-room energy management, suspension safety design and passenger compartment enhancement, was evaluated to improve the small... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Analysis of factors affecting the frequency of crashes on interstate freeways by vehicle type considering multiple weather variables - Aguilar C, Russo BJ, Mohebbi A, Akbariyeh S.
Recently, there has been an increasing trend in traffic crash fatalities in the United States, including the State of Arizona. Given this fact, it is imperative to analyze factors that affect crash frequency, particularly those occurring on high-speed free... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Analysis of accidents caused by human factors in the oil and gas industry using the HFACS-OGI framework - Nw.wo CD, Arewa AO, Theophilus SC, Esenowo VN.
BACKGROUND: Human factors have been identified as the most common causes of catastrophic accidents in the oil and gas industry. Therefore, this study aims to analyze human causal factors of accidents in the oil and gas industry using the Human Factors Anal... (Source: SafetyLit)
Source: SafetyLit - April 19, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Is the ‘new muon’ really a great scientific discovery? For now, I’m cautious | Carlo Rovelli
Physicists are always looking for eureka moments – but we should be careful with headline-grabbing announcementsThere is something curious about the great experiments and discoveries in fundamental physics from the past few decades. They have coveredblack holes,gravitational waves,the Higgs particle andquantum entanglement. They have led to Nobel prizes, reached the front pages of newspapers and made the scientific community proud. But they haven ’t told us anything new: they have confirmed what we expected about the world. All these phenomena were in the university textbooks I studied almost half a century ago...
Source: Guardian Unlimited Science - April 19, 2021 Category: Science Authors: Carlo Rovelli Tags: Science Physics Particle physics Astronomy Space Source Type: news

Toward a crowdsourcing solution to identify high-risk highway segments through mining driving jerks - Li X, Mousavi SM, Dadashova B, Lord D, Wolshon B.
This study reports... (Source: SafetyLit)
Source: SafetyLit - April 17, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

The situational conditions of suicide in transit environments: an analysis using CCTV footage - Ceccato V, Wiebe DJ, Vrotsou K, Nyberg U, Grundberg A.
Introduction We explore the use of CCTV footage to map suicidal self-injurious behavior on a subway platform to better understand the settings and the situational conditions of individuals just before they attempt suicide. Methods We use footage from... (Source: SafetyLit)
Source: SafetyLit - April 17, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Safety of e-bikes compared to conventional bicycles: what role does cyclists' health condition play? - Schepers P, Klein Wolt K, Helbich M, Fishman E.
Introduction The rising use of e-bikes (EBs) presents an opportunity to increase active transportation but may compromise road safety due to increased travel speed and weight compared to conventional bicycle (CBs). Evidence comparing the safety of EBs and... (Source: SafetyLit)
Source: SafetyLit - April 17, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Role of number of traffic lanes on pedestrian gap acceptance and risk taking behaviour at uncontrolled crosswalk locations - Raghuram Kadali B, Vedagiri P.
Introduction Pedestrian gap acceptance has been studied by many researchers for evaluating pedestrian facilities. However, these studies could not relate the gap acceptance at uncontrolled mid-block crosswalks have varied roadway features with pedestrian ... (Source: SafetyLit)
Source: SafetyLit - April 17, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Regional conditions and road traffic collisions on rural roads in Chile - S ánchez-González MP, Tejada-Ponce, Bonnefoy J, Escribano-Sotos F.
Background Road traffic collisions represent a public health problem in Chile, with fatality rates higher than in most OECD countries. This research investigates how various factors affect fatalities and injuries rates in Chile in the period 2000-2017 and... (Source: SafetyLit)
Source: SafetyLit - April 17, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Perceptions of the environment moderate the effects of objectively-measured built environment attributes on active transport. an ACTI-Cit és study - Desgeorges MM, Nazare JA, Enaux C, Oppert JM, Menai M, Charreire H, Salze P, Weber C, Hercberg S, Roda C, Feuillet T, Hess F, Simon C, Perchoux C.
PURPOSE Both perceived and objectively-measured attributes of the built environment have been related to active transport. They do not refer, however, to the same construct: objective measurements provide an inventory of a neighborhood's active-friendly a... (Source: SafetyLit)
Source: SafetyLit - April 17, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Mind the gap: gender differences in walkability, transportation and physical activity in urban india - Adlakha D, Parra DC.
Introduction Insufficient physical activity (PA) is a key contributor for premature mortality in low- and middle-income countries (LMICs). Despite the well-documented health benefits of PA, few women achieve the recommended levels of PA. The global averag... (Source: SafetyLit)
Source: SafetyLit - April 17, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Data of age- and gender-related physical and coordination abilities as normative for drivers in the area of health and safety - Roman-Liu D, Mazur-R óżycka J, Tokarski T.
PURPOSE The aim of this study was to provide normative data measures of upper and lower limb strength, body balance and coordination, taking into account differences related to age and gender. Materials and methods The study included four groups of 60 ... (Source: SafetyLit)
Source: SafetyLit - April 17, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Bicycle Comfort Level Rating (BCLR) model for urban street segments in mid-sized cities of India - Beura SK, Chellapilla H, Panda M, Bhuyan PK.
This study thus aims ... (Source: SafetyLit)
Source: SafetyLit - April 17, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

A jughandle design will virtually eliminate single bicycle crashes at a railway crossing - Shah N, Buckner I, Cherry CR.
Introduction Bicycling provides many positive outcomes at individual- and population-levels, from increased physical activity to reduced congestion. One of the main barriers to increased levels of bicycling is safety and injury risk from motor vehicles an... (Source: SafetyLit)
Source: SafetyLit - April 17, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Analysis of vehicle-type-specific headways on two-lane roads with mixed traffic - Roy R, Saha P.
Time headway is an important microscopic traffic flow parameter, which affects safety, level-of-service, capacity and traffic simulation. It is, therefore, important to know the specific distribution for a particular roadway and traffic condition. Further,... (Source: SafetyLit)
Source: SafetyLit - April 17, 2021 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

After Visiting Pluto, NASA ’s New Horizons Spacecraft Reaches Another Cosmic Milestone
On Jan. 19, 2006, the Earth lost half a ton. More precisely, it lost 1,054 lbs (478 kg), but it’s O.K. to round down, since the 13 octillion-pound planet hardly noticed the missing weight. The flyweight fleck of matter was very much born of the planet, a collection of metal and silicon and copper and rubber and plastics and foil and a bit of plutonium hammered together into the New Horizons spacecraft. Launched atop an Atlas V rocket, New Horizons tore away from Earth at a blistering 58,500 k/h (36,400 mph), a record-breaking speed that seemed very much fitting, given that its destination was Pluto, 5.1 billion km (3...
Source: TIME: Science - April 16, 2021 Category: Science Authors: Jeffrey Kluger Tags: Uncategorized Source Type: news

Senators Pump Brakes on Endless Frontier Act
Sponsors of the Endless Frontier Act have delayed reintroducing the bill amid pushback from some senators, including leaders of key committees, who held hearings this week to debate the legislation ’s vision for transforming the U.S. research system. (Source: FYI: The AIP Bulletin of Science Policy News)
Source: FYI: The AIP Bulletin of Science Policy News - April 16, 2021 Category: Physics Authors: mambrose Source Type: news

Panchanathan Makes Case for NSF Expansion to Appropriators
NSF Director Sethuraman Panchanathan discussed the Biden administration's vision for a new agency directorate with congressional appropriators, who expressed their own priorities on matters such as the geographic distribution of NSF grant funding. (Source: FYI: The AIP Bulletin of Science Policy News)
Source: FYI: The AIP Bulletin of Science Policy News - April 15, 2021 Category: Physics Authors: mambrose Source Type: news

Cardiologist warns about covid vaccine fraud and hyper-inflammatory immune responses caused by the shots
(Natural News) An expert physicist-nuclear cardiologist appeared on a recent episode of Pandemic War Room to warn the public about the dangers of the experimental covid vaccines and to discuss the fundamental fraud that was used to falsely advertise vaccine efficacy. Dr. Richard Fleming has thoroughly studied the clinical trials for the experimental covid vaccines... (Source: NaturalNews.com)
Source: NaturalNews.com - April 15, 2021 Category: Consumer Health News Source Type: news

Physicists develop theoretical model for neural activity of mouse brain
(Emory Health Sciences) The dynamics of the neural activity of a mouse brain behave in a peculiar, unexpected way that can be theoretically modeled without any fine tuning, suggests a new paper by physicists at Emory University. Physical Review Letters published the research, which adds to the evidence that theoretical physics frameworks may aid in the understanding of large-scale brain activity. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - April 15, 2021 Category: Biology Source Type: news

Calculation could dim hopes for new physics
(Source: ScienceNOW)
Source: ScienceNOW - April 15, 2021 Category: Science Authors: Cho, A. Tags: Physics In Depth Source Type: news

The Weyl side of ultracold matter
(Source: ScienceNOW)
Source: ScienceNOW - April 15, 2021 Category: Science Authors: Goldman, N., Yefsah, T. Tags: Physics perspective Source Type: news

A three-node quantum network
(Source: ScienceNOW)
Source: ScienceNOW - April 15, 2021 Category: Science Authors: Osborne, I. S. Tags: Physics twis Source Type: news

Twisted and nematic
(Source: ScienceNOW)
Source: ScienceNOW - April 15, 2021 Category: Science Authors: Stajic, J. Tags: Materials Science, Physics twis Source Type: news

A minimal Weyl semimetal
(Source: ScienceNOW)
Source: ScienceNOW - April 15, 2021 Category: Science Authors: Stajic, J. Tags: Physics twis Source Type: news

A gapped spin liquid
(Source: ScienceNOW)
Source: ScienceNOW - April 15, 2021 Category: Science Authors: Stajic, J. Tags: Physics twis Source Type: news

Realization of a multinode quantum network of remote solid-state qubits
The distribution of entangled states across the nodes of a future quantum internet will unlock fundamentally new technologies. Here, we report on the realization of a three-node entanglement-based quantum network. We combine remote quantum nodes based on diamond communication qubits into a scalable phase-stabilized architecture, supplemented with a robust memory qubit and local quantum logic. In addition, we achieve real-time communication and feed-forward gate operations across the network. We demonstrate two quantum network protocols without postselection: the distribution of genuine multipartite entangled states across ...
Source: ScienceNOW - April 15, 2021 Category: Science Authors: Pompili, M., Hermans, S. L. N., Baier, S., Beukers, H. K. C., Humphreys, P. C., Schouten, R. N., Vermeulen, R. F. L., Tiggelman, M. J., dos Santos Martins, L., Dirkse, B., Wehner, S., Hanson, R. Tags: Physics r-articles Source Type: news

Nematicity and competing orders in superconducting magic-angle graphene
We report on the identification of intertwined phases with broken rotational symmetry in magic-angle twisted bilayer graphene (TBG). Using transverse resistance measurements, we find a strongly anisotropic phase located in a "wedge" above the underdoped region of the superconducting dome. Upon its crossing with the superconducting dome, a reduction of the critical temperature is observed. Furthermore, the superconducting state exhibits an anisotropic response to a direction-dependent in-plane magnetic field, revealing nematic ordering across the entire superconducting dome. These results indicate that nematic flu...
Source: ScienceNOW - April 15, 2021 Category: Science Authors: Cao, Y., Rodan-Legrain, D., Park, J. M., Yuan, N. F. Q., Watanabe, K., Taniguchi, T., Fernandes, R. M., Fu, L., Jarillo-Herrero, P. Tags: Materials Science, Physics r-articles Source Type: news

Realization of an ideal Weyl semimetal band in a quantum gas with 3D spin-orbit coupling
Weyl semimetals are three-dimensional (3D) gapless topological phases with Weyl cones in the bulk band. According to lattice theory, Weyl cones must come in pairs, with the minimum number of cones being two. A semimetal with only two Weyl cones is an ideal Weyl semimetal (IWSM). Here we report the experimental realization of an IWSM band by engineering 3D spin-orbit coupling for ultracold atoms. The topological Weyl points are clearly measured via the virtual slicing imaging technique in equilibrium and are further resolved in the quench dynamics. The realization of an IWSM band opens an avenue to investigate various exoti...
Source: ScienceNOW - April 15, 2021 Category: Science Authors: Wang, Z.-Y., Cheng, X.-C., Wang, B.-Z., Zhang, J.-Y., Lu, Y.-H., Yi, C.-R., Niu, S., Deng, Y., Liu, X.-J., Chen, S., Pan, J.-W. Tags: Physics r-articles Source Type: news