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Quantum Griffiths singularity in two-dimensional superconducting 4Ha-TaSe_(2) nanodevices

Nano Research 2023年第10期16卷 12281-12285页

作者： Ying Xing Yiyu Liu Pu Yang jun ge Longxin Pan junyan Wang Shichao Qi Yi Liu Jian Wang State Key Laboratory of Heavy Oil Processing College of New Energy and MaterialsChina University of Petroleum(Beijing)Beijing 102249China International Center for Quantum Materials School of PhysicsPeking UniversityBeijing 100871China College of Chemistry Beijing Normal UniversityBeijing 100875China Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials&Micro-nano Devices Renmin University of ChinaBeijing 100872China Collaborative Innovation Center of Quantum Matter Beijing 100871China Hefei National Laboratory Hefei 230088China Beijing Academy of Quantum Information Sciences Beijing 100193China CAS Center for Excellence in Topological Quantum Computation University of Chinese Academy of SciencesBeijing 100190China

The layered transition metal dichalcogenides(TMDs)have raised considerable interest in the past decades for both fundamental physics and low-dimensional nanodevice ***,intriguing phenomena of Ising superconductivity and quantum metallic state have been reported in two-dimensional(2D)4Ha-TaSe2 ***,we report the magnetic field induced superconductor–metal transition(SMT)in mechanical exfoliated 4Ha-TaSe2 nanodevices with thickness down to 2.5 *** observe the quantum Griffiths singularity(QGS)of SMT in thin 4Ha-TaSe2 nanodevices by performing ultralow temperature transport measurements and activated scaling *** increasing the thickness of TaSe2 nanodevice to 10.6 nm,the signature of magnetoresistance crossing region can hardly be detected,revealing the thickness dependence of *** this procedure,the disorder strength plays a dominant *** work enriches the platform for studying QGS and may stimulate further investigations on the correlation between different novel quantum phenomena in the same 2D superconducting system.

关键词： two-dimensional superconductor quantum phase transition quantum Griffiths singularity transition metal dichalcogenides electrical transport property

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gender difference in patients with acute myocardial infarction treated by primary percutaneous coronary intervention in drug-eluting stent era

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Chinese Medical Journal 2010年第7期123卷 776-777页

作者： ge jun-bo Shanghai Institute of Cardiovascular Diseases Zhongshan Hospital Fudan University Shanghai 200032 China

Primary percutaneous coronary intervention （PCI） has been the standard of care for patients with acuteST-elevation myocardial infarction hours of symptom onset in modem and applications of robust （STEMI） within 12 era.1＇2 The advances anti-platelet and anti-coagulation medicines further improve the outcome of STEMI patients undergoing primary PCI^3 ,and

关键词：心肌梗死性别特性

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Preinfarction angina： old story initiates new attention

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Chinese Medical Journal 2012年第6期125卷 968-969页

作者： ge jun-bo Department of Cardiology Zhongshan HospitalFudan UniversityShanghai Institute of Cardiovascular DiseasesShanghai 200032China

Since first report by Murry et alI in 1986, the role of ischemia preconditioning before sustained coronary occlusion in protecting myocardium and reducing infarct size has been identified in animal studies. The mechanism underlying the endogenous cardioprotective effects of ischemia preconditioning is complex and may involve humoral, neural, or a combination of both, with adenosine, different signaling pathways involving bradykinin, protein kinases and K（ATP） channels.

关键词： preinfarction angina ST-elevation myocardial infarction percutaneous coronary intervention

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Effect of V on high-temperature mechanical properties of Al-5Cu-1.5Ni alloy

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Journal of Iron and Steel Research International 2024年第7期31卷 1792-1810页

作者： jun-ge Cui Yong-bin Chen Xiang-zhou Fu Hai-long Yang Han-zhang Wang An-min Li Li-wen Pan School of Resources Environment and MaterialsGuangxi UniversityNanning 530004GuangxiChina State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures Nanning 530004GuangxiChina Guangxi Higher Education Key Laboratory of Advanced Materials Nanning 530004GuangxiChina

The effects of V on microstructure,room temperature,and high-temperature(350℃)mechanical properties of Al-5Cu-1.5Ni alloy were *** results show that Al-5Cu-1.5Ni-xV alloys mainly compriseα-Al,Al_(2)Cu,Al_(3)(Ni,Cu)_(2),Al_(3)Ni,Al7Cu4Ni,and Al_(10)V *** addition of V can signally refineα-Al dendritic structure,which improves the mechanical properties of the as-cast alloys at room and high *** T6 heat treatment(540℃/12 h/WC+170℃/8 h/AC),α-Al,network skeleton structure Al_(3)(Ni,Cu)_(2),and Al_(10)V phases all show coarsening,while the fine nano-θ'-Al_(2)Cu precipitated from the matrix and dispersed *** introduction of V promotes the quantity of precipitatedθ'-Al_(2)Cu *** ultimate tensile strength of the heat-treated alloys at room and high temperatures is greatly improved compared to that of the as-cast *** highest high-temperature ultimate tensile strength of the alloys with V is 111.8 MPa,21.5%higher than that of the base *** analysis shows that the improvement of high-temperature mechanical properties after heat treatment is mainly due to the introduction of V,increasing the precipitated quantity of nano-θ'-Al_(2)Cu particles and improving its thermal *** dispersion strengthening effect ofθ'-Al_(2)Cu particles exceeds the weakening effect of other adverse microstructures on the mechanical properties.

关键词： Al-Cu-Ni-V alloy θ'-Al_(2)Cu phase Heat treatment Microstructure Mechanical property

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Liquid crystal depolarizer based on photoalignment technology

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Photonics Research 2016年第2期4卷 70-73页

作者： Bing-Yan Wei Peng Chen Shi-jun ge Li-Chao Zhang Wei Hu Yan-Qing Lu National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced Microstructures and College of Engineering and Applied Sciences Nanjing University Thorlabs China

We propose a depolarizer based on the principle of a collection of half-wave plates with randomly distributed optic axes. The design is demonstrated by means of dynamically photopatterning liquid crystal into randomly aligned homogeneous domains. We characterize the liquid crystal depolarizer for 1550 nm and C-band(1520–1610 nm). A degree of polarization of less than 5% is obtained for any linearly polarized light. This study provides a practical candidate for high-performance depolarizers.

关键词： DOP Liquid crystal depolarizer based on photoalignment technology

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An all-optical modulator based on a stereo graphene–microfiber structure

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Light(Science & Applications) 2015年第1期4卷 42-46页

作者： Jin-Hui Chen Bi-Cai Zheng Guang-Hao Shao Shi-jun ge Fei Xu Yan-Qing Lu National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced MicrostructuresCollege of Engineering and Applied SciencesNanjing UniversityNanjing 210093China

An in-line,all-optical fiber modulator based on a stereo graphene–microfiber structure(GMF)utilizing the lab-on-rod technique was demonstrated in this *** to its unique spring-like geometry,an ultra-long GMF interaction can be achieved,and a modulation depth of,7.5 dB(,2.5 dB)and a modulation efficiency of,0.2 dB mW^(-1)(,0.07 dB mW^(-1))were demonstrated for two polarization *** modulation depth and modulation efficiency are more than one order of magnitude larger than those of other graphene–microfiber hybrid all-optical modulators,although at the cost of a higher insertion *** further optimizing the transferring and cleaning process,the upper limit of the modulation depth is mainly determined by the loss from the intrinsic absorption,which depends on the light–graphene ***,the modulator can quickly switch between the on-state and the off-state with a theoretically maximized modulation depth of tens of *** modulator is compatible with the current fiber-optic communication systems and may be applied in the near future to meet the impending need for ultrafast optical signal processing.

关键词： graphene microfiber optical modulation polarization

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The Model of Indirect Pricing Transactions and the New Boundaries of the Sharing Economy

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Contemporary Social Sciences 2021年第1期6卷 55-62页

作者： ge jun Guo Yukuan Global CEO of TOJOY Holding Group President of TOJOY Research Institute TOJOY Holding Group

In recent years,the sharing economy has become more prevalent in many *** bringing convenience to the public,it has also improved resource efficiency,thus gradually driving economic *** studying indirect pricing transactions,the authors have discovered a new sort of sharing economics which may be able to resolve the issue presented by intangible assets(such as entrepreneurship)and provide new ideas for addressing social *** with the traditional sharing economy,this new economic pattern has wider potential *** authors hold that their indirect pricing theory establishes the theoretical foundation of new sharing economics,while the model of indirect-pricing transaction extends the boundaries for the existing sharing economy.

关键词： sharing economy indirect pricing new sharing economy new economic pattern

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Apelin-13 inhibits apoptosis and excessive autophagy in cerebral ischemia/reperfusion injury

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Neural Regeneration Research 2021年第6期16卷 1044-1051页

作者： Zi-Qi Shao Shan-Shan Dou jun-ge Zhu Hui-Qing Wang Chun-Mei Wang Bao-Hua Cheng Bo Bai Cheeloo College of Medicine Shandong UniversityJinanShandong ProvinceChina Neurobiology Institute Jining Medical UniversityJiningShandong ProvinceChina

Apelin-13 is a novel endogenous ligand for an angiotensin-like orphan G-protein coupled receptor,and it may be neuroprotective against cerebral ischemia ***,the precise mechanisms of the effects of apelin-13 remain to be *** investigate the effects of apelin-13 on apoptosis and autophagy in models of cerebral ischemia/reperfusion injury,a rat model was established by middle cerebral artery ***-13(50μg/kg)was injected into the right ventricle as a *** addition,an SH-SY5Y cell model was established by oxygen-glucose deprivation/reperfusion,with cells first cultured in sugar-free medium with 95%N2 and 5%CO2 for 4 hours and then cultured in a normal environment with sugar-containing medium for 5 *** SH-SY5Y cell model was treated with 10-7 M apelin-13 for 5 *** showed that apelin-13 protected against cerebral ischemia/reperfusion ***-13 treatment alleviated neuronal apoptosis by increasing the ratio of Bcl-2/Bax and significantly decreasing cleaved caspase-3 *** addition,apelin-13 significantly inhibited excessive autophagy by regulating the expression of LC3B,p62,and ***,the expression of Bcl-2 and the phosphatidylinositol-3-kinase(PI3K)/Akt/mammalian target of rapamycin(mTOR)pathway was markedly *** LY294002(20μM)and rapamycin(500 nM),which are inhibitors of the PI3K/Akt/mTOR pathway,significantly attenuated the inhibition of autophagy and apoptosis caused by *** conclusion,the findings of the present study suggest that Bcl-2 upregulation and mTOR signaling pathway activation lead to the inhibition of apoptosis and excessive *** effects are involved in apelin-13-induced neuroprotection against cerebral ischemia/reperfusion injury,both in vivo and in *** study was approved by the Animal Ethical and Welfare Committee of Jining Medical University,China(approval No.2018-JS-001)in February 2018.

关键词： central nervous system brain brain injury factor pathways apoptosis autophagy neuroprotection regeneration

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Strip deep rotary tillage combined with controlled-release urea improves the grain yield and nitrogen use efficiency of maize in the North China Plain

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Journal of Integrative Agriculture 2022年第9期21卷 2559-2576页

作者： HAN Yu-ling GUO Dong MA Wei ge jun-zhu LI Xiang-ling Ali Noor MEHMOOD ZHAO Ming ZHou Bao-yuan Institute of Crop Sciences Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and EcologyMinistry of Agriculture and Rural AffairsBeijing 100081P.R.China College of Agriculture Northeast Agricultural UniversityHarbin 150030P.R.China College of Agronomy&Resource and Environment Tianjin Agricultural UniversityTianjin 300384P.R.China College of Agronomy and Biotechnology Hebei Normal University of Science&TechnologyQinhuangdao 066004P.R.China

Inappropriate tillage practices and nitrogen(N) management have become seriously limitations for maize(Zea mays L.) yield and N use efficiency(NUE) in the North China Plain(NCP). In the current study, we examined the effects of strip deep rotary tillage(ST) combined with controlled-release(CR) urea on maize yield and NUE, and determined the physiological factors involved in yield formation and N accumulation during a 2-year field experiment. Compared with conventional rotary tillage(RT) and no-tillage(NT), ST increased the soil water content and soil mineral N content(Nmin) in the 20–40 cm soil layer due to reduction by 10.5 and 13.7% in the soil bulk density in the 0–40 cm soil layer, respectively. Compared with the values obtained by common urea(CU) fertilization, CR increased the Nmin in the 0–40 cm soil layers by 12.4 and 10.3% at the silking and maturity stages, respectively. As a result, root length and total N accumulation were enhanced under ST and CR urea, which promoted greater leaf area and dry matter(particularly at post-silking), eventually increasing the1 000-kernel weight of maize. Thus, ST increased the maize yield by 8.3 and 11.0% compared with RT and NT, respectively, whereas CR urea increased maize yield by 8.9% above the values obtained under CU. Because of greater grain yield and N accumulation, ST combined with CR urea improved the NUE substantially. These results show that ST coupled with CR urea is an effective practice to further increase maize yield and NUE by improving soil properties and N supply, so it should be considered for sustainable maize production in the NCP(and other similar areas worldwide).

关键词： maize strip deep rotary tillage controlled-release urea nitrogen accumulation grain yield

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One-step Production of Continuous Supercapacitor Fibers for a Flexible Power Textile

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Chinese Journal of Polymer Science 2019年第8期37卷 737-743页

作者： Yang Hong Xun-Liang Cheng ge-jun Liu Dong-Sheng Hong Si-Si He Bin-Jie Wang Xue-Mei Sun Hui-Sheng Peng State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Laboratory of Advanced Materials Fudan University

Given that conventional bulky electrochemical energy storage devices are too rigid and heavy to be considered wearable,developing fully integrated power systems is expected to accelerate the successful commercialization of smart electronic *** great achievements have been made for fiber-shaped energy storage devices, there remain key challenges pertaining to their fabrication efficiency, scalability, and stability. Herein, a general and highly efficient method is developed to continuously fabricate supercapacitor fibers with lengths of kilometers at high production rate up to 118 m/h through a simple one-step wet spinning *** from the designed unique two-circle-in-one-circle architecture, the resulting supercapacitor fibers demonstrated high electrochemical stability even after being bended for 1 × 10~5 cycles. As a demonstration, these continuous supercapacitor fibers were further woven into a flexible power scarf for large-scale applications in wearable electronics. This simple and scalable fabrication process combined with the unique structure provides a general and effective paradigm to design other fiber-shaped devices like sensors, batteries,and solar cells.

关键词： Continuous production Wet-spinning Fiber-shaped supercapacitors Energy storage fabric

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