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Advances in deep ultraviolet laser based high-resolution photoemission spectroscopy Review Articles

Zu-yan XU, Shen-jin ZHANG, Xing-jiang ZHOU, Feng-feng ZHANG, Feng YANG, Zhi-min WANG, Nan ZONG, Guo-dong LIU, Lin ZHAO, Li YU, Chuang-tian CHEN, Xiao-yang WANG, Qin-jun PENG

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 7, Pages 885-913 doi: 10.1631/FITEE.1800744

Abstract: Cascaded second harmonic generation with the nonlinear crystal KBe2BO3F2 (KBBF) is used to generate deep

Keywords： Deep and vacuum ultraviolet laser Second harmonic generation KBe2BO3F2 nonlinear crystal Photoelectron

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Slope stability analysis based on a multigrid method using a nonlinear 3D finite element model

Yaoru LIU, Zhu HE, Bo LI, Qiang YANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1, Pages 24-31 doi: 10.1007/s11709-013-0190-1

Abstract: determine the stability safety factor for any slip surface or slide block through a combination of nonlinearelastic–plastic incremental analysis method based on the Drucker–Prager yield criterion was adopted in the nonlinearusing the rigid-body limit equilibrium method and were in better agreement with actual values because nonlinear

Keywords： slope stability multi-grid method nonlinear finite element method

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Existence of complete band gaps in 2D steel-water phononic crystal with square lattice

Cunfu HE, Huanyu ZHAO, Ruiju WEI, Bin WU

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4, Pages 450-454 doi: 10.1007/s11465-010-0105-y

Abstract: paper theoretically and experimentally studies the existence of complete band gaps in two-dimensional (2D) phononic crystal consisting of parallel steel rods in water with square lattice.The band structure of phononic crystal is calculated by a plane wave expansion (PWE) method.

Keywords： phononic crystal plane wave expansion (PWE) method experimental study

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Observation of a higher JAK2 V617F homozygous mutated clone in polycythemia vera compared to essential

LIU Hongxing, TONG Chunrong, CAI Peng, GU Jiangying, LIN Yuehui, TENG Wen, WANG He, ZHANG Ying, ZHU Ping

Frontiers of Medicine 2008, Volume 2, Issue 3, Pages 309-313 doi: 10.1007/s11684-008-0059-1

Abstract: real-time quantitative polymerase chain reaction (RQ-PCR) assays were developed and performed for JAK2V617FThe results showed that in some samples, the JAK2V617F burden was as low as nearly 1%, and thus moreJAK2V617F-positive samples were detected by RQ-PCR than by SB-ASA assay due to the former higher detectresult shows that the pathogenesis of PV and ET may be related to the mutation allele burden of JAK2V617F

Keywords： specific amplification essential thrombocythemia Single-tube bi-directional JAK2V617F-positive JAK2V617F

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Synthesis of copolymers of 3-acryloyloxymethyl-3′-methyloxetane and 3-(2-(2-(2-Methoxyethylenoxy)ethylenoxy)ethylenoxy)-3′-methyloxetane and their ionic conductivity properties

YE Lin, ZHAO Yumei, FENG Zengguo, BAI Ying, WU Feng

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 4, Pages 343-348 doi: 10.1007/s11705-007-0062-0

Abstract: An oxetane-derived monomer, 3-acryloyloxymethyl-3′-methyloxetane (AMO) was prepared from the reactionof 3-hydromethyl-3-methyloxetane with acryloyl chloride.The cationic ring-opening copolymerization of AMO with another oxetane-derived monomer, 3-(2-(2-(2-methoxyethylenoxy)ethylenoxy)ethylenoxy)-3′-methyloxetane (MEMO) was conducted in CHCl solution using BF3 ·OEt/1, 4-butanediol

Keywords： 4-butanediol 2-methoxyethylenoxy consistent oxetane-derived copolymer

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The stabilization effect of Al₂O₃ on unconventional Pb/SiO₂ catalyst

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10, Pages 1423-1429 doi: 10.1007/s11705-023-2315-y

Abstract: To enhance the stability, the traditional carrier Al₂O₃ with a small amount, wasintroduced into Pb/SiO₂ catalyst in this study.It has been proved that Al₂O₃ can inhibit the reduction of PbO, and weaken theAs a result, 3Al15Pb/SiO₂ catalyst exhibits a much higher stability up to more than 150 h./sub>O₃ addition was also proposed.

Keywords： Pb/SiO₂ Al₂O₃ propane dehydrogenation propene stability

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Improvement in the synthesis of 2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(Z)-methoxyiminoacetic acid 2-benzothiazolyl

GAO Shihao, SUN Chenghui, ZHAO Xinqi, GAO Changquan

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1, Pages 80-84 doi: 10.1007/s11705-008-0017-0

Abstract: 2-(5-Amino-1,2,4-thiadiazol-3-yl)-2-(Z)-methoxyiminoacetic acid 2-benzothiazolyl thioester(III), an importantintermediate of the fourth generation cephalosporins, was efficiently synthesized by reacting 2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(Z)-methoxyiminoacetic acid (I) with 2,2′-dibenzothiazole disulfide (II) in

Keywords： 5-Amino-1 2 4-thiadiazol-3-yl 1 2-dichloroethane important intermediate 2-benzothiazolyl thioester temperature

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Effect of TiO 2 loading on the activity of V/TiO 2 -Al 2 O 3 in the catalytic oxidehydrogenation of ethylbenzene

Xiaohong LI, Wenying LI,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 2, Pages 142-146 doi: 10.1007/s11705-009-0233-2

Abstract: TiO content in the support had obvious effect on the crystal structure, texture characteristic, acid

Keywords： desorption different TiO-AlOmixed physisorption ethylbenzene

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Rh₂O₃/hexagonal CePO₄ nanocatalysts for N₂O decomposition

Huan Liu, Zhen Ma

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4, Pages 586-593 doi: 10.1007/s11705-017-1659-6

Abstract: Hexagonal CePO nanorods were prepared by a precipitation method and hexagonal CePO nanowires were prepared by hydrothermal synthesis at 150 °C. Rh(NO ) was then used as a precursor for the impregnation of Rh O onto these CePO materials. The Rh O supported on the CePO nanowires was much more active for the catalytic decomposition of N O than the Rh O supported on CePO nanorods. The stability of both catalysts as a function of time on stream was studied and the influence of the co-feed (CO , O , H O or O /H O) on the N O decomposition was also investigated. The samples were characterized by N adsorption-desorption, inductively coupled plasma optical emission spectroscopy, X-ray diffraction, transmission electron microscopy, X-ray photoelectron microscopy, hydrogen temperature-programmed reduction, oxygen temperature-programmed desorption, and CO temperature-programmed desorption in order to correlate the physicochemical and catalytic properties.

Keywords： Rh₂O₃ CePO₄ N₂O decomposition

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Al₂O₃ and CeO₂-promoted MgO sorbents for CO₂ capture at moderate

Huimei Yu, Xiaoxing Wang, Zhu Shu, Mamoru Fujii, Chunshan Song

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1, Pages 83-93 doi: 10.1007/s11705-017-1691-6

Abstract: A series of Al O and CeO modified MgO sorbents was prepared and studied for CO sorption at moderate temperatures. The CO sorption capacity of MgO was enhanced with the addition of either Al O or CeO . Over Al O -MgO sorbents, the best capacity of 24.6 mg-CO /g-sorbent was attained at 100 °C, which was 61% higher than that of MgO (15.3 mg-CO /g-sorbent). The highest capacity of 35.3 mg-CO /g-sorbent was obtained over the CeO -MgO sorbents at the optimal temperature of 200 °C. Combining with the characterization results, we conclude that the promotion effect on CO sorption with the addition of Al O and CeO can be attributed to the increased surface area with reduced MgO crystallite size. Moreover, the addition of CeO increased the basicity of MgO phase, resulting in more increase in the CO capacity than Al O promoter. Both the Al O -MgO and CeO -MgO sorbents exhibited better cyclic stability than MgO over the course of fifteen CO sorption-desorption cycles. Compared to Al O , CeO is more effective for promoting the CO capacity of MgO. To enhance the CO capacity of MgO sorbent, increasing the basicity is more effective than the increase in the surface area.

Keywords： CO₂ capture MgO sorbents Al₂O₃ CeO₂ flue gas

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Nonlinear dynamics of a wind turbine tower

IANNUZZO, F. PENTA, M. MONACO

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3, Pages 342-350 doi: 10.1007/s11465-019-0524-3

Abstract: Nonlinear dynamics is the most reliable among such methods.

Keywords： nonlinear dynamics plastic shear failure modal approximation time history

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Nickel(II) ion-intercalated MXene membranes for enhanced H₂/CO₂ separation

Yiyi Fan, Jinyong Li, Saidi Wang, Xiuxia Meng, Yun Jin, Naitao Yang, Bo Meng, Jiaquan Li, Shaomin Liu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4, Pages 882-891 doi: 10.1007/s11705-020-1990-1

Abstract: Hydrogen fuel has been embraced as a potential long-term solution to the growing demand for clean energy. A membrane-assisted separation is promising in producing high-purity H . Molecular sieving membranes (MSMs) are endowed with high gas selectivity and permeability because their well-defined micropores can facilitate molecular exclusion, diffusion, and adsorption. In this work, MXene nanosheets intercalated with Ni were assembled to form an MSM supported on Al O hollow fiber via a vacuum-assisted filtration and drying process. The prepared membranes showed excellent H /CO mixture separation performance at room temperature. Separation factor reached 615 with a hydrogen permeance of 8.35 × 10 mol·m ·s ·Pa . Compared with the original Ti C T /Al O hollow fiber membranes, the permeation of hydrogen through the Ni -Ti C T /Al O membrane was considerably increased, stemming from the strong interaction between the negatively charged MXene nanosheets and Ni . The interlayer spacing of MSMs was tuned by Ni . During 200-hour testing, the resultant membrane maintained an excellent gas separation without any substantial performance decline. Our results indicate that the Ni tailored Ti C T /Al O hollow fiber membranes can inspire promising industrial applications.

Keywords： MXene H₂/CO₂ separation nickel ions hollow fiber

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Discussion on a new paradigm of endogenous security towards 6G networks Review

Xinsheng JI, Jiangxing WU, Liang JIN, Kaizhi HUANG, Yajun CHEN, Xiaoli SUN, Wei YOU, Shumin HUO, Jing YANG

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 10, Pages 1421-1450 doi: 10.1631/FITEE.2200060

Abstract:

The sixth-generation mobile communication (6G) networks will face more complex endogenous security problems, and it is urgent to propose new universal security theories and establish new practice norms to deal with the "unknown unknown" security threats in cyberspace. This paper first expounds the new paradigm of cyberspace endogenous security and introduces the vision of 6G cyberspace security. Then, it analyzes the security problems faced by the 6G , , and emerging associated technologies in detail, as well as the corresponding security technology development status and the integrated development of endogenous security and traditional security. Furthermore, this paper describes the relevant security theories and technical concepts under the guidance of the .

Keywords： 6G security New paradigm of endogenous security Core network Wireless access network

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Wideband cryogenic amplifier for a superconducting nanowire single-photon detector Research Article

Lianming Li, Long He, Xu Wu, Xiaokang Niu, Chao Wan, Lin Kang, Xiaoqing Jia, Labao Zhang, Qingyuan Zhao, Xuecou Tu,Lianming.LI@seu.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 12, Pages 1551-1684 doi: 10.1631/FITEE.2100525

Abstract: and output matching, the measurement results showed that the amplifier achieved a 21-dB gain with a 3-At 4.2 K, the gain of the amplifier can be tuned from 15 to 24 dB, achieving a 3-dB bandwidth spanning

Keywords：超低温放大器；宽带放大器；超导纳米线单光子探测器

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In-MOF-derived In₂S₃/Bi₂S₃ heterojunction for enhanced photocatalytic

Frontiers in Energy 2023, Volume 17, Issue 5, Pages 654-663 doi: 10.1007/s11708-023-0885-5

Abstract: In this paper, a broad spectrum responsive In₂S₃/Bi₂S₃ heterojunctionis constructed by in-situ integrating Bi₂S₃ with the In₂S_{S₃/Bi₂S₃ heterojunction demonstrates a rate of 0.71 mmol/(g∙h),which is 2.2 and 1.7 times as much as those of In₂S₃ (0.32 mmol/(g∙h) and Bi₂S₃ (0.41 mmol/(g∙h)), respectively.}

Keywords： photocatalytic hydrogen production wide-spectrum response metal sulfides MOFs derivative heterogeneous interfacial contact

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Title Author Date Type Operation

Advances in deep ultraviolet laser based high-resolution photoemission spectroscopy

Zu-yan XU, Shen-jin ZHANG, Xing-jiang ZHOU, Feng-feng ZHANG, Feng YANG, Zhi-min WANG, Nan ZONG, Guo-dong LIU, Lin ZHAO, Li YU, Chuang-tian CHEN, Xiao-yang WANG, Qin-jun PENG

Journal Article

Slope stability analysis based on a multigrid method using a nonlinear 3D finite element model

Yaoru LIU, Zhu HE, Bo LI, Qiang YANG

Journal Article

Existence of complete band gaps in 2D steel-water phononic crystal with square lattice

Cunfu HE, Huanyu ZHAO, Ruiju WEI, Bin WU

Journal Article

Observation of a higher JAK2 V617F homozygous mutated clone in polycythemia vera compared to essential

LIU Hongxing, TONG Chunrong, CAI Peng, GU Jiangying, LIN Yuehui, TENG Wen, WANG He, ZHANG Ying, ZHU Ping

Journal Article

Synthesis of copolymers of 3-acryloyloxymethyl-3′-methyloxetane and 3-(2-(2-(2-Methoxyethylenoxy)ethylenoxy)ethylenoxy)-3′-methyloxetane and their ionic conductivity properties

YE Lin, ZHAO Yumei, FENG Zengguo, BAI Ying, WU Feng

Journal Article

The stabilization effect of Al₂O₃ on unconventional Pb/SiO₂ catalyst

Journal Article

Improvement in the synthesis of 2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(Z)-methoxyiminoacetic acid 2-benzothiazolyl

GAO Shihao, SUN Chenghui, ZHAO Xinqi, GAO Changquan

Journal Article

Effect of TiO 2 loading on the activity of V/TiO 2 -Al 2 O 3 in the catalytic oxidehydrogenation of ethylbenzene

Xiaohong LI, Wenying LI,

Journal Article

Rh₂O₃/hexagonal CePO₄ nanocatalysts for N₂O decomposition

Huan Liu, Zhen Ma