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Tuning the porosity of {Co12IICo8III（μ3-OH）24（X）}11+ supramolecular frameworks by reaction time for D2/H2 separation

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Science China Chemistry 2025年

作者： Zhuozhou Xie Zhu Zhuo zi-ang Nan Qing Li Xiufang Li zi-Xiu Lu Linzhe Lü Jin Liu Luyao Liu Wenjing Wang Wei Wang Daqiang Yuan You-Gui Huang State Key Laboratory of Structure Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences University of Chinese Academy of Sciences Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth Materials Haixi InstitutesChinese Academy of Sciences State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical EngineeringXiamen University

Systematicly tuning the porosities of porous materials is crucial for targeted gas mixture separation,yet it remains a longstanding *** a common strategy,altering the phenylene ring count in the organic building units has been exploited to adjust pore apertures in metal organic frameworks （MOFs） and covalent organic frameworks （COFs）,resulting in only a stepwise pore size variation of approximately 2.8?.Unlike MOFs and COFs,the porosities for supramolecular assembly frameworks are highly dependent on the packings of the molecular building units in the *** above strategy cannot be applied to supramolecular assembly frameworks and other strategies are required to adjust pore apertures in supramolecular frameworks,especially to achieve porous materials with the optimal pore size for D2/H2separation （～3?）.Here,we successfully modulate the porosity of supramolecular frameworks of[CoII1+12CoIII8L12（μ3-OH）24（X）]1clusters （L=mono-deprotonated 1-iminoisoindole-3-amine,X=ClO?4or Cl?） by controlling the duration of self-assembly *** simply adjusting the reaction time,we obtain three[CoII12CoIII8L12（μ3-OH）24（X）]11+supramolecular frameworks:[CoII12CoIII8（μ3-OH）24（ClO4）L12)]·（Cl）4·（HCO2）7（1）,[CoII12CoIII8L12（μ3-OH）24（Cl）]·（ClOI4）4·（Cl）6·（HCO2）·（H2O）10（2）,and[CoI12CoIII8L12（μ3-OH）24（Cl）]·（Cl）11·（H2O）12（3）.The different stacking patterns of the[CoII12CoIII8L12（μ3-OH）24（X）]11+clusters in these frameworks lead to significantly varied stabilities and *** 1 exhibits permanent porosity with interconnected channels and maintains stability under harsh *** contrast,compound 2 is nearly nonporous,and compound 3 becomes unstable upon *** pores of compound 1 show higher affinity to D2than H2,and the pore aperture diameter of compound 1 （～3.06?） meets the optimal porosity for D2/***,compound 1 demonstrates moderate D2/H2separation at 77 K (retention time:～7 min/g for D2/H2/Ne （10/10/80 vol%） in a flow of 5 mL

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Entropic destruction of heavy quarkonium with hyperscaling violation

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Chinese Physics C 2021年第10期45卷 47-52页

作者： ang Li zi-Qiang Zhang School of Mathematics and Physics China University of GeosciencesWuhan 430074China Key Laboratory of Quark and Lepton Physics(MOE) Central China Normal UniversityWuhan 430079China

We study the entropic destruction of heavy quarkonium in strongly coupled theories with an anisotropic scaling symmetry in time and a spatial *** consider Lifshitz and hyperscaling violation theories,which are covariant under a generalized Lifshitz scaling symmetry with the dynamical exponent z and hyperscaling violation exponentθ.It is shown that the entropic force depends on the parameters of these *** particular,increasing z decreases the entropic force,thus reducing the quarkonium dissociation,while increasingθhas the opposite effect.

关键词： QGP quarkonium dissociation AdS/CFT correspondence entropic force

GRB jet beaming angle statistics

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Research in Astronomy and Astrophysics 2010年第2期10卷 142-150页

作者： Yah gao zi-gao Dai Department of Astronomy Nanjing University Nanjing 210093 China

Existing theory and models suggest that a Type I （merger） GRB should have a larger jet beaming angle than a Type II （collapsar） GRB, but so far no statistical evidence is available to support this suggestion. In this paper, we obtain a sample of 37 beaming angles and calculate the probability that this is true. A correction is also devised to account for the scarcity of Type I GRBs in our sample. The probability is calculated to be 83% without the correction and 71% with it.

关键词： gamma rays: bursts -- ISM: jets and outflows -- methods: statistical

Equivalence of coefficients extraction of one-loop master integrals

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Communications in Theoretical Physics 2020年第11期72卷 48-56页

作者： Yang An zi-ang Hu Zhongjie Huang Yi Li Xiang Lv Zhejiang Institute of Modern Physics Department of PhysicsZhejiang UniversityNo.38 Zheda RoadHangzhouChina Department of Physics Zhejiang UniversityNo.38 Zheda RoadHangzhouChina

Now,there have been many different methods to calculate one-loop *** of them are the unitarity cut method and the generalized unitarity cut *** this short paper,we present an explicit connection between these two meth... 详细信息

关键词： scattering amplitude one loop correction

Renewable synthetic fuel:turning carbon dioxide back into fuel

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Frontiers in Energy 2022年第2期16卷 145-149页

作者： Zhen HUang Lei ZHU ang LI Zhan gao Key Laboratory for Power Machinery and Engineering of the Ministry of Education Shanghai Jiao Tong UniversityShanghai 200240China China Research Institute of Carbon Neutrality Shanghai Jiao Tong UniversityShanghai 200240China

Climate change has emerged as one of the major challenges *** the First Industrial Revolution,the discovery and utilization of fossil energy has promoted the great prosperity and development of human ***,serious issues of environmental and climate change have *** May 2021,CO_(2) concentration in the atmosphere reached 419.13 ppm,observed by the National Oceanic and Atmospheric Administration(NOAA)of US,which arrives at the highest value in human history[1].The CO_(2)-based greenhouse gas emissions lead to global warming,which causes a serious threat to the survival of human being as well as sustainable development of *** September 2020,it was announced that China would scale up its nationally determined contributions and adopt more vigorous policies and activities to peak carbon dioxide emissions before 2030 and achieve carbon neutrality before 2060.

关键词： turning dioxide carbon

EBCache:A Novel Cache-Based Mechanism for Mitigating the Spectre Attacks for RISC-V Processor

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China Communications 2024年第12期21卷 166-185页

作者： Wu Dehua Xiao Wan’ang gao Wanlin Key Laboratory of Agricultural Informatization Standardization Ministry of Agriculture and Rural AffairsChina Agricultural UniversityBeijing 100083China College of Information and Electrical Engineering China Agricultural UniversityBeijing 100083China Institute of Semiconductors Chinese Academy of SciencesBeijing 100083China Center of Materials Science and Optoelectronics Engineering&School of Microelectronics University of Chinese Academy of SciencesBeijing 100049China

The cache-based covert channel is one of the common vulnerabilities exploited in the Spectre *** mitigation strategies focus on blocking the eviction-based channel by using a random/encrypted mapping function to translate memory address to the cache address,while the updated-based channel is still *** addition,some mitigation strategies are also costly as it needs software and hardware *** this paper,our objective is to devise low-cost,comprehensive-protection techniques for mitigating the Spectre *** proposed a novel cache structure,named EBCache,which focuses on the RISC-V processor and applies the address encryption and blacklist to resist the Spectre *** addresses encryption mechanism increases the difficulty of pruning a minimal eviction *** blacklist mechanism makes the updated cache lines loaded by the malicious updates *** experiments demonstrated that the EBCache can prevent malicious *** EBCache,however,reduces the processor’s performance by about 23%but involves only a low-cost modification in the hardware.

关键词： cache structure out-of-order execution side-channel attacks the Spectre attacks

Facial microcystic adnexal carcinoma-treatment with a “jigsaw puzzle” advancement flap and immediate esthetic reconstruction: A case report

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World Journal of Clinical Cases 2021年第3期9卷 607-613页

作者： Yi-Ding Xiao Ming-zi Zhang ang Zeng Department ofPlastic Surgery Peking Union Medical College HospitalBeijing 100730China

BACKGROUND Microcystic adnexal carcinoma(MAC)is a rare malignant tumor of the skin that is commonly found on the *** grows slowly and has a low mortality ***,for various reasons,including strong histological invasiveness,clinical inexperience and inadequate procedure design,immediate or permanent facial deformity may occur after surgical *** SUMMARY This article describes a middle-aged female artist who was diagnosed with MAC on the left upper *** declined the recommended treatment plan,which included two-stage reconstruction,skin grafting,or surgery that could have resulted in obvious facial dysfunction or esthetic *** accurately designed a personalized procedure involving a“jigsaw puzzle advancement flap”for the patient based on the lesion location and the estimated area of skin *** procedure was successful;both pathological R0 resection and immediate and long-term esthetic reconstruction effects were *** This study suggests that when treating facial MAC or other skin malignancies,a surgical team should have sufficient plastic surgery-related knowledge and *** optimal surgical plan for an individual is needed to achieve good facial esthetics and functional recovery and shorten the treatment course.

关键词： Microcystic adnexal carcinoma Esthetic reconstruction Jigsaw puzzle advancement flap Plastic surgery Reconstruction Esthetics Case report

Gamma-Ray Burst Afterglows with Energy Injection: Homogeneous Versus Wind External Media

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Chinese Physics Letters 2001年第8期18卷 1153-1155页

作者： Wang Wei DAI zi-gao Department of Astronomy Nanjing UniversityNanjing 210093 National Astronomical Observatory Chinese Academy of SciencesBeijing 100012

Assuming an adiabatic evolution of a gamma-ray burst(GRB)fireball interacting with an external medium,we calculate the hydrodynamics of the fireball with an energy injection from a strongly magnetic millisecond pulsar through magnetic dipole radiation,and obtain the light curve of the optical afterglow from the fireball by synchrotron *** results are given both for a homogeneous external medium and for a wind ejected by GRB *** calculations are also available in both ultra-relativistic and non-relativistic ***,the observed R-band light curve of GRB000301C can be well fitted in our model,which might provide a probe of the properties of GRB progenitors.

关键词： Wind relativistic fitted

ON POTENT ELEMENTS AND PSEUDO CLEAN RINGS

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数学杂志 2025年第1期45卷 39-47页

作者： DING Yan gao Han-peng LIU Xin-yi YAN zi-yi ZHang Ting School of Mathematical Sciences Anhui UniversityHefei 230601China

In this paper,potent index of an element and pseudo clean rings are *** properties and examples of pseudo clean rings are *** also show that Zm is pseudo clean for every 2≤m∈Z and pseudo clean rings are ***,we prove... 详细信息

关键词： clean rings strongly J-clean rings pseudo clean rings potent elements