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| 1 | Derivations and Isomorphisms of Certain Reflexive Operator Algebras | Hou Chengjun Han Deguang Department of Mathematics, Qufu Normal University, Qufu 273165, China Institute of Mathematics, Fudan University, Shanghai 200433, China Department of Mathematics, Qufu Normal University, Qufu 273165, China | 1998 | Acta Mathematica Sinica,English Series1998，14，1： | 3 |
| 2 | Highly transmitted silver nanowires-SWCNTs conductive flexible film by nested density structure and aluminum-doped zinc oxide capping layer for flexible amorphous silicon solar cells显示文摘Indium tin oxide(ITO)is widely used in transparent conductive films(TCFs);however,several disadvan-tages,such as high cost and toxicity of indium,limit its applications.Therefore,it is necessary to develop other materials that can replace ITO.Silver nanowires or single walled carbon nanotubes(SWCNTs)have attracted considerable interest owing to their unique electrical,optical,and thermal stabilities,and thus,they are ideal for transparent electrodes for flexible or stretchable devices.In this study,we develop a novel architecture of composite TCFs on a polyethylene naphthalate(PEN)flexible substrate.Herein,the silver nanowires-SWCNTs films with nested density structure were fabricated through ultrasonic spraying technology by varying the spraying width.For achieving enhanced transmittance,we combined the larger irregular grids and holes with fewer nanowires stacked in the longitudinal direction,more optical chan-nels,and good carrier transport.Thereafter,aluminum-doped zinc oxide(AZO)was used as capping to the structure for enhancing the optical properties of the TCFs.The silver nanowires-SWCNTs/AZO(ASA)bilayer was obtained in the optimized architecture,which showed superior optoelectronic performance to that shown by commercial ITO with a high optical transmittance of 92%at the wavelength of 550 nm and low sheet resistance of 17/sq.In the specially structured conductive film,the significant improvement in the transmittance and uniformity of the sheet resistance was attributed to the effective nanowire junc-tion contact compared to that in ordinary structure of silver nanowires,which reduced the mean density of small clusters of nanowires.Compared with the silver nanowires-SWCNTs films,the ASA bilayer film exhibited excellent resistance to boiling,mechanical bending(10,000 cycles),and CO_(2)plasma.Moreover,the sheet resistance of ASA changed slightly after the tape tests,thereby illustrating a strong adhesion to the PEN substrate after the enclosure of AZO.Meanwhile,the AZO capping layer can enhance the op-tical transmittance between 600 and 1500 nm.In addition,the amorphous silicon photovoltaic devices with flexible ASA TCFs exhibited a power conversion efficiency(PCE)of 8.67%.After bending for 3000 times,the PCE was decreased to 8.20%,thereby demonstrating the potential of developed films to replace traditional ITO. | Shunliang Gao Xiaohui Zhao Qi Fu Tianchi Zhang Jun Zhu Fuhua Hou Jian Ni Chengjun Zhu Tiantian Li Yanlai Wang Vignesh Murugadoss Gaber A.M.Mersal Mohamed M.Ibrahim Zeinhom M.El-Bahy Mina Huang Zhanhu Guo | 2022 | Journal of Materials Science & Technology2022，，31： | 2 |
| 3 | Cohomology of a class of Kadison-Singer algebras显示文摘Let L be the complete lattice generated by a nest N on an infinite-dimensional separable Hilbert space H and a rank one projection P ξ given by a vector ξ in H. Assume that ξ is a separating vector for N , the core of the nest algebra Alg(N ). We show that L is a Kadison-Singer lattice, and hence the corresponding algebra Alg(L) is a Kadison-Singer algebra. We also describe the center of Alg(L) and its commutator modulo itself, and show that every bounded derivation from Alg(L) into itself is inner, and all n-th bounded cohomology groups H n (Alg(L), B(H)) of Alg(L) with coefficients in B(H) are trivial for all n≥1. | HOU ChengJun Institute of Operations Research, Qufu Normal University, Rizhao 276826, China | 2010 | Science China Mathematics2010，53，7： | 1 |
| 4 | Guiding magnetic liquid metal for flexible circuit显示文摘Liquid metal(LM) has potential applications in flexible electronics due to its high electrical conductivity and high flexibility. However, common methods of printing LM circuits on soft substrates lack controllability, precision, and the ability to repair a damaged circuit. In this paper, we propose a method that uses a magnetic field to guide a magnetic LM(MLM) droplet to print and repair a flexible LM circuit on a femtosecond(fs) laser-patterned silicone surface.After mixing magnetic iron(Fe) particles into LM, the movement of the resultant MLM droplet could be controlled by a magnetic field. A patterned structure composed of the untreated flat domain and the LM-repellent rough microstructure produced by fs laser ablation was prepared on the silicone substrate. As an MLM droplet was guided onto the designed pattern, a soft LM circuit with smooth, uniform, and high-precision LM lines was obtained. Interestingly, the MLM droplet could also be guided to repair the circuit broken LM lines, and the repaired circuit maintained its original electrical properties. A flexible tensile sensor was prepared based on the printed LM circuit, which detected the bending degree of a finger. | Chengjun Zhang Qing Yang Jiale Yong Chao Shan Jingzhou Zhang Xun Hou Feng Chen | 2021 | International Journal of Extreme Manufacturing2021，3，2： | 1 |
| 5 | Using GPU to calculate electron dose for hybrid pencil beam model显示文摘Hybrid pencil beam model(HPBM) offers an efficient approach to calculate the three-dimension dose distribution from a clinical electron beam.Still,clinical radiation treatment activity desires faster treatment plan process.Our work presented the fast implementation of HPBM-based electron dose calculation using graphics processing unit(GPU).The HPBM algorithm was implemented in compute unified device architecture running on the GPU,and C running on the CPU,respectively.Several tests with various sizes of the field,beamlet and voxel were used to evaluate our implementation.On an NVIDIA GeForce GTX470 GPU card,we achieved speedup factors of 2.18- 98.23 with acceptable accuracy,compared with the results from a Pentium E5500 2.80 GHz Dual-core CPU. | GOU Chengjun LI Xia HOU Qing WU Zhangwen | 2011 | Nuclear Science and Techniques2011，22，6： | 1 |
| 6 | 2017年中国出现的H7N9高致病性病毒的快速进化显示文摘文章简介为了防控H7N9病毒,中国2017年9月开始对鸡进行了H5/H7二价禽流感灭活疫苗。为了解H7N9病毒在中国家禽中的分布情况,研究团队进行了系统的禽流感病毒监测。2017年2月至2017年5月之间在379个活禽市场和665个家禽养殖场共采集30201份样品(其中活禽市场采集12504份. | Jianzhong Shi Guohua Deng Shujie Ma Xianying Zeng Xin Yin Mei Li Bo Zhang Pengfei Cui Yan Chen Huanliang Yang Xiaopeng Wan Liling Liu Pucheng Chen Yongping Jiang Yuntao Guan Jinxiong Liu Wenli Gu Shuyu Han Yangming Song Libin Liang Zhiyuan Qu Yujie Hou Xiurong Wang Hongmei Bao Guobin Tian Yanbing Li Li Jiang Chengjun Li 陈化兰 | 2019 | 科学新闻2019，0，2： | 1 |
| 7 | Strategic Study on Integration of Port and City Development in Rizhao显示文摘agglomeration of the Yangtze Delta (UAYD), one of the most developed regions of China, has witnessed an increasing prevalence in building ecological cities when the ecological cities are pursued by many modern cities, and great achievements have been made in this regard. It is inevitable, however, that certain problems exist during the construction of ecological city, which include but not limited to non-harmonious development of urban complex ecosystem, and the difficulty in quantifying eco-city construction or incomplete quantification in assessing the con- struction of present and future eco-city. Based on the analysis on social-economic conditions and regional conditions of the UAYD, this paper attempts to set up an index system of eco-cities com- bining with local characteristics, and to adopt the indices of eco-city, urban harmony, and eco-city colligate to evaluate the ecological level, urban harmonious development and eco-city construction of cities within the UAYD. Results indicate that among 15 cities in UAYD, Suzhou City ranks the highest in terms of eco-city construction, whereas Nantong ranks relatively lower; sustainable eco-city construction is possible only when cities are developed in every respect of harmony. | Hou Chengjun Zhao Gaozheng | 2007 | Chinese Journal of Population,Resources and Environment2007，5，3： | 0 |
| 8 | On maximal injective subalgebras in a wΓ factor显示文摘Let L(FQ) ×α Z be the crossed product von Neumann algebra of the free group factor L(FQ), associated with the left regular representation λ of the free group FQ with the set {ur : r ∈ Q} of generators, by an automorphism α defined by α(λ(ur)) = exp(2πri)λ(ur), where Q is the rational number set. We show that L(FQ) ×α Z is a wΓ factor, and for each r ∈ Q, the von Neumann subalgebra Ar generated in L(FQ) ×α Z by λ(ur) and v is maximal injective, where v is the unitary implementing the automorphism α. In particular, L(FQ) ×α Z is a wΓ factor with a maximal abelian selfadjoint subalgebra A0 which cannot be contained in any hyperfinite type II1 subfactor of L(FQ) ×α Z. This gives a counterexample of Kadison's problem in the case of wΓ factor. | HOU ChengJun School of Mathematical Sciences, Qufu Normal University, Shandong 273165, China | 2008 | Science China Mathematics2008，51，11： | 0 |
| 9 | Image quality of the proton imaging from computer-simulated data显示文摘In this paper,the proton image quality of three designed phantoms is studied by the Monte Carlo simulation tool FLUKA,and is compared with that of the photon,and electron imaging.The passages of parallel beams were simulated by the phantoms for protons,electrons and X-rays,and the fluence and energy spectra of exiting particles are recorded.The proton energy loss imaging has a high quality under low transmission proton fluence,and its quality is superior to that of electron and photon fluence.The results demonstrate that proton energy loss imaging is especially suitable for the samples of hundreds of nano-thicknesses. | ZHANG Conghua HOU Qing GOU Chengjun WU Zhangwen | 2010 | Nuclear Science and Techniques2010，21，1： | 0 |
| 10 | High performance wide bandgap perovskite solar cell with low V_(OC)deficit less than 0.4 V显示文摘Wide bandgap perovskite solar cells(PSCs)have attracted significant attention because they can be applied to the top cells of tandem solar cells.However,high open-circuit voltage(V_(OC))deficit(>0.4 V)result from poor crystallization and high non-radiative recombination losses become a serious limitation in the pursuit of high performance.Here,the relevance between different Pbl_(2)proportions and performance parameters are revealed through analysis of surface morphology,residual stress,and photostability.The increase of Pbl_(2)proportion promotes crystal growth and reduces the work function of the perovskite film surface and promotes the energy level alignment with the carrier transport layer,which decreased the V_(OC)deficit.However,residual PbI_(2)exacerbated the stress level of perovskite film,and the resulting lattice disorder deteriorated the photostability of the device.Ultimately,after the synergistic passivation of residual PbI_(2)and PEAI,the V_(OC)achieves 1.266 V and V_(OC)deficit is less than 0.4 V,the record value in wide bandgap PSCs. | Haikuo Guo Fuhua Hou Xuli Ning Xiaoqi Ren Haoran Yang Rui Liu Tiantian Li Chengjun Zhu Ying Zhao Wei Li Xiaodan Zhang | 2024 | Journal of Energy Chemistry2024，91，4： | 0 |
| 11 | On C^(*)-algebras from homoclinic equivalences on subshifts of finite type显示文摘Let G be an infinite countable group and A be a finite set.IfΣ?A~G is a strongly irreducible subshift of finite type,we endow a locally compact and Hausdorff topology on the homoclinic equivalence relation■onΣand show that the reduced C^(*)-algebra C_(r)^(*)(■)of■is a unital simple approximately finite(AF)-dimensional C^(*)-algebra.The shift action G of onΣinduces a canonical automorphism action of G on the C^(*)-algebra C_(r)^(*)(■).We give the notion of noncommutative dynamical entropy invariants for amenable group actions on C^(*)-algebras,and show that,if G is an amenable group,then the noncommutative topological entropy of the canonical automorphism action of G on C_(r)^(*)(■)is equal to the topology entropy of the shift action of G onΣ.We also establish the variational principle with respect to the noncommutative measure entropy and the topological entropy for the C^(*)-dynamical system(C_(r)^(*)(■),G). | Chengjun Hou | 2021 | Science China Mathematics2021，64，4： | 0 |
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