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4篇 您的检索式:作者名="Dingyi Tang"
    题名 作者 年代 出处 被引量
1Delegateable signatures based on non-interactive witness indistinguishable and non-interactive witness hiding proofs显示文摘A delegateable signature scheme(DSS)which was first introduced by Barak is mainly based on the non-interactive zero-knowledge proof(NIZK)for preventing the signing verifier from telling which witness(i.e.,restricted subset)is being used. However,the scheme is not significantly efficient due to the difficulty of constructing NIZK.We first show that a non-interactive witness indistinguishable(NIWI)proof sys- tem and a non-interactive witness hiding(NIWH)proof system are easier and more efficient proof models than NIZK in some cases.Furthermore,the witnesses em- ployed in these two protocols(NIWI and NIWT)cannot also be distinguished by the verifiers.Combined with theΣ-protocol,we then construct NIWI and NIWH proofs for any NP statement under the existence of one-way functions and show that each proof is different from those under the existence of trapdoor permutations.Finally,based on our NIWI and NIWH proofs,we construct delegateable signature schemes under the existence of one-way functions,which are more efficient than Barak's scheme under the existence of trapdoor permutations.TANG ChunMing PEI DingYi WANG XiaoFeng LIU ZhuoJun 2008Science in China(Series F)2008,51,2:5
2Additive manufacturing alumina components with lattice structures by digital light processing technique显示文摘Digital light processing technique was applied to manufacture alumina ceramic parts with two types of lattice structure units, i.e. vertex interconnect structure and edge structure. The internal porosity of the unit is 40%. The printed parts were sintered and the grain size is about 1.1 μm. The bending strength of the vertex interconnect structure is much larger than that of the edge structure. Materials genome initiative(MGI) aims to digital design and intelligent manufacture for advanced components. This research shows us an example to achieve this goal.Qjngfeng Zeng Changhao Yang Dingyi Tang Jiayao Li Zhiqiang Feng Jiantao Liu Kang Guan 2019Journal of Materials Science & Technology2019,35,12:5
3Designable heteronanocrystals via interface redox reaction显示文摘The synergistic interaction of different components in heteronanocrystals induces interfacial phenomena and novel functionalities.Nonetheless,effective technologies to design and fabricate heteronanocrystals with materials on demand are still missing.Rich heterostructures in a copper patina are known to form at room temperature and under atmospheric pressure.The redox process of copper tarnish inspired the discovery of a simple strategy to achieve heteronanocrystals that contained elements from group 3-11 and group 14-16.The interface redox-induced method is self-regulating at ambient conditions and applicable for metal,semiconductor,and dielectric materials.The enhanced interface bonding endows the heteronanocrystals with outstanding stability and catalytic performance,while the modular approach enables the design and fabrication of heteronanocrystals with intended materials to meet different purposes.Zhihua Li Yang Li Nannan Luo Yuanyuan Qie Dingyi Yang Guowei Cao Yuxiang Liu Ying Fu Na Li Wen Hu Min Zhang Rusen Yang Bo Tang 2023Nano Research2023,16,4:0
4High-throughput systematic topological generation of low-energy carbon allotropes显示文摘The search for new materials requires effective methods for scanning the space of atomic configurations,in which the number is infinite.Here we present an extensive application of a topological network model of solid-state transformations,which enables one to reduce this infinite number to a countable number of the regions corresponding to topologically different crystalline phases.We have used this model to successfully generate carbon allotropes starting from a very restricted set of initial structures;the generation procedure has required only three steps to scan the configuration space around the parents.As a result,we have obtained all known carbon structures within the specified set of restrictions and discovered 224 allotropes with lattice energy ranging in 0.16–1.76 eV atom^(−1) above diamond including a phase,which is denser and probably harder than diamond.We have shown that this phase has a quite different topological structure compared to the hard allotropes from the diamond polytypic series.We have applied the tiling approach to explore the topology of the generated phases in more detail and found that many phases possessing high hardness are built from the tiles confined by six-membered rings.We have computed the mechanical properties for the generated allotropes and found simple dependences between their density,bulk,and shear moduli.Vladislav A.Blatov Changhao Yang Dingyi Tang Qingfeng Zeng Andrey A.Golov Artem A.Kabanov 2021npj Computational Materials2021,,1:0
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