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| 1 | Synthesis of CNT film on the surface of micro-pyramid array and its intense pulsed emission characteristics显示文摘We developed a new scheme to suppress the electric-field-screening effect in high growth density of a carbon nanotube(CNT) film during its intense pulsed emission.We synthesize the CNT film on a tridimensional surface(t-CNT film).The tridimensional surface includes wet etched silicon pyramids,and the Ni layer is electroless plated thereon.The intense pulsed emission characteristics of the t-CNT and planar-grown CNT(p-CNT) films were measured using a diode structure in single-pulse mode.The even turn-on field decreased from 5.5 V/μm for p-CNTs to 2.8 V/m for t-CNTs,and the peak emission current increased from 232 A for p-CNTs to 324 A for t-CNTs at a peak field intensity ~12.2 V/m.The peak current of the t-CNT film increased by ~39.7% over the p-CNT film.It is clear that the micro-pyramid array can effectively suppress the field screening effect to improve the electron-emission of CNT films. | ZENG FanGuang LI Xin LIU WeiHua QIAO ShuZhen MA HuaLi ZHANG Rui XIA LianSheng CHEN Yi LIU XingGuang ZHANG Huang | 2012 | Chinese Science Bulletin2012，57，14： | 10 |
| 2 | Improvement in the intense pulsed emission stability of grown CNT films via an electroless plated Ni layer显示文摘Carbon nanotube(CNT)films were grown on silicon wafers with and without a nickel layer(Si-CNT and Ni-CNT)via the pyrolysis of iron phthalocyanine.The nickel layer was prepared using the electroless plating method.To study the emission stability of Si-CNT and Ni-CNT cathodes during intense pulsed emission,emission characteristics were measured repeatedly with a diode structure using a Marx generator as a voltage source.For the peak values of the pulsed voltage,which were in the range between 1.62-1.66 MV(corresponding to electric field intensities between 11.57-11.85 V/μm),the first cycle emission current was 109.4 A for Si-CNT and 180.5 A for Ni-CNT.By comparing the normalized emission currents of the Si-CNT and Ni-CNT cathodes,the improvement in the emission stability can be easily quantified.The number of emission cycles necessary for the peak current to decay from 100%to 50%increased from^3 for Si-CNT to^11 for a Ni-CNT film. | ZENG FanGuang LI Xin LIU WeiHua QIAO ShuZhen MA HuaLi ZHANG Rui XIA LianSheng CHEN Yi LIU XingGuang ZHANG Huang | 2011 | Chinese Science Bulletin2011，56，22： | 7 |
| 3 | In vitro and in silico analysis of dual-function peptides derived from casein hydrolysate显示文摘There is no study on food-derived peptide with both anticoagulant and angiotensin I-converting enzyme inhibitory (ACEI) activities yet. In this work, the anticoagulant and ACEI activities of the casein hydrolysates released by pepsin digestion were evaluated for the first time to the best of our knowledge. Results indicated that the casein hydrolysate exhibited potent anticoagulant activity by prolonging the thrombin time (TT) and the activated partial thromboplastin time (APTT). Compared with control samples, at 10 mg/mL, the TT and APTT of casein hydrolysate were 186.0 % ± 6.6 % and 163.5 % ± 7.4 %, respectively. The casein hydrolysate also showed a strong ACEI activity with an IC50 value of 1.775 mg/mL. The components of the bioactive casein hydrolysate were analyzed by nanoscale liquid chromatography quadrupole time-of-flight tandem mass spectrometry (NanoLC-Q-TOF-MS/MS). Total of 115 peptides were identified, among which 34, 9, 55 and 17 peptides were derived from α_(s1-), α_(s2-), β-, and κ-casein, respectively. The results of PeptideRanker and PepSite 2 analysis showed that 6 peptides (FRQFYQL, NENLLRF, NPWDQVKR, PVVVPPFLQ, PVRGPFPIIV, and ARHPHPHLSF) have both ACEI and anticoagulant activities by binding to the active sites of ACE and thrombin. This study indicated that casein is a potential functional food supplement that can be used for medical purposes. | Maolin Tu Xinyu Qiao Cong Wang Hanxiong Liu Shuzhen Cheng Zhe Xu Ming Du | 2021 | Food Science and Human Wellness2021，10，1： | 4 |
| 4 | Magnetostratigraphy and provenance of the Qingzhou loess in Shandong province显示文摘Loess deposits with varying thickness are widely distributed on the intermontane valleys and piedmont zones on the northern side of the central Shandong mountainous regions. However, the basal ages and material resources of the loess deposits are not clear. The paper studied the Qingzhou loess profile in Shandong with magnetostratigraphic and optical stimulated luminescence (OSL) methods and further investigated its main provenances with the mineralogical methods. The magnetostratigraphic results showed that the Brunhes/Matuyama (B/M) reversal boundary was not recognized, suggesting a basal age younger than 0.78 Ma. Extrapolations by sedimentation rates, based on the upper part depositional rate from the OSL age, the basal age of the Qingzhou loess is about 0.5 Ma. Until now, older loess deposits have not been reported on the northern side of the central Shandong mountainous regions. The results of the paper indicate that the loess deposits in this area might have strated from the Middle Pleistocene. The basal age of Qingzhou loess is approximately synchronous with the Xiashu loess in the middle-lower reaches of Yangtze River. Major components of clay minerals in the Qingzhou profile are dominated by illite. Other clay mineral compositions are mainly smectite, chlorite and kaolinite, which are similar with the Xifeng loess in the Loess Plateau. However, the contents of smectite and the ratios of illite and kaolinte in the Qingzhou loess samples are higher than those in the Xifeng loess samples of the Loess Plateau, indicating that the loess in the northern side of the central Shandong mountainous regions has different sources from that of the loess deposits in the Loess Plateau. The clay mineral analysis further reinforces the earlier conclu- sion that the marine strata exposed in the Laizhou Bay and the fluvial plain of the lower reaches of Yellow River during the glacier periods are the main material sources for the Qingzhou loess deposits, which is an indicator to the local aridification of the lower reaches of the Yellow River. Loess deposition in the central Shandong mountainous regions started at around 0.5 Ma. The age of Qingzhou loess is approximately synchronous with the ongoing high-latitude cold since the Middle Pleistocene, which indicates that strengthened East Asian winter monsoon was sufficiently energetic to bring substantial quantities of material from the marine strata exposed in the Laizhou Bay and the fluvial plain of the lower reaches of the Yellow River to the central Shandong mountainous regions. The results therefore suggest that both regional geological process and global changes were responsible for the formation of Qingzhou loess since Middle Pleistocene. | ShuZhen PENG LiJun ZHU GuoQiao XIAO YanSong QIAO ZhiDong GAO DongDong CHEN | 2011 | Journal of Arid Land2011，3，3： | 3 |
| 5 | DETERMINATION OF PrCl_3-NaCl-LiCl PHASE DIAGRAM显示文摘PrCl3-NaCl-LiCl phase diagram has been constructed from the phase diagrams of itssub-binary systems and of six quasi-binary systems measured by DTA technique.It is foundthat this ternary system is composed of five liquidus surfaces,seven second crystallizationlines,two peritectic points and one eutectie point.The temperatures and compositions ofinvariant points are as follows:P1(416℃,30.3 mol% NaCl,44.2 mol% LiCl,25.5 mol%PrCl3);P2(409℃,25.0 mol% NaCl,50.0 mol% LiCl,25.0 mol% PrCl3);E(404℃,20.0mol% NaCl,55.4 mol% LiCl,24.6 mol% PrCl3). | QIAO Zhiyu WANG Mingsheng ZHENG Chaogui DUAN Shuzhen University of Science and Technology Beijing,Beijing,China Qiao Zhiyu,Professor,Dept.of Physical Chemistry University of Science and Technology Beijing,30 Xueyuan Road,Beijing 100083,China | 1990 | Acta Metallurgica Sinica(English Letters)1990，3，7： | 1 |
| 6 | Influ- ence of different buffer layer on intense pulsed field e- mission of carbon nanotubes显示文摘 | Ma Huali Zhang Xinyue Qiao Shuzhen | 2012 | Advanced Materials Research2012，586，： | 1 |
| 7 | A New Model for Predicting Ternary Thermodynamic Properties of Solution Phase and Its Application显示文摘A new geometric asymmetric model for predicting the thermodynamic properties of ternary systemfrom three sub-binaries is presented in this paper.Its analytical expression with good calculating ac-curacy is most simple in all asymmetric models.The new model was applied to predict the enthalpiesof mixing of the Bi-Ga-Sn.Au-Ag-Sn and NaCl-KCl-CaCl2 ternary systems which were in goodagreements with experimental data.Based on thermodynamic principles,the importance of thechoice of asymmetric component is also discussed.The error analysis indicates that in the case ofjudging the asymmetric component in ternary system according to the thermodynamic criterion thedeviation is minimum.It is of great significance to improve the calculating accuracy for predictingthermodynamic properties of ternary solution phase from the sub-binary ones. | Zhiyu QIAO Xianran XING Shuzhen DUAN University of Science and Technology Beijing,Beijing,100083,ChinaChaogui ZHENG Beijing University,Beijing,100871,China | 1993 | Journal of Materials Science & Technology1993，9，3： | 0 |
| 8 | Study on the NaCl-CaCl_2 Binary System显示文摘By use of micro-DTA technique as well as ambient and high temperature X-ray analysis the phase diagram ofNaCl-CaCl2 has been checked.It is.a simple eutectic system with a solid solubility in the sodium chloride side.Theeutectic point is at 773K,49 mol% NaCl.The experimental results,especially those of the X-ray diffraction studies haveshowed that the incongruent compound 4NaCl-CaCl2 does not exist in the NaCl-CaCl2 system. | Qiao Zhiyu Du Ailing Mo Wenjing Zhi Jinbiao Wang Mingsheng Zheng Chaogui Duan Shuzhen Dept.of Physical Chemistry,University of Science and Technology Beijing Former Beijing University of Iron and Steel Technology Dept.of Chemistry,Peking University. | 1989 | Rare Metals1989，9，1： | 0 |
| 9 | The color reflectance of marine-terrigenous deposits in LZ908 borehole in south coastal plain of the Laizhou Bay显示文摘Color measuring is characterized by high resolution,high efficiency,and low cost. The application becomes increasingly common for tracing sediment sources and climate variation. Borehole LZ908 in the south coastal plain of the Laizhou Bay in northeast China,was used,of which the top 54 m containing all marine facies was focused,to test the feasibility of colorimetry as a climate indi-cator using visible light reflectance spectra and L*a*b*measurement results. The results show a good correction between lightness and calcium carbonate content in marine-terrigenous deposits;therefore,these deposits can be used as a proxy to study climate changes. Factor-analysis on the first derivative values of the raw visible light reflectance spectra produced three principal factors corresponding to goethite,organic matter,and hematite. Down hole variations in the three fac-tor scores,lightness,calcium carbonate content,and grain size were quite consistent. Moreover,high lightness and low factor scores in goethite,hematite,and organics indicated glacial regression deposits,while low lightness and high factor scores in goethite,hematite,and organics indicated interglacial transgression deposits. | ZHAO Na XU Xingyong YU Hongjun YAO Jing SU Qiao PENG Shuzhen | 2011 | Acta Oceanologica Sinica2011，30，4： | 0 |
| 10 | Trustworthy decentralized collaborative learning for edge intelligence:A survey显示文摘Edge intelligence is an emerging technology that enables artificial intelligence on connected systems and devices in close proximity to the data sources.decentralized collaborative learning(DCL)is a novel edge intelligence technique that allows distributed clients to cooperatively train a global learning model without revealing their data.DCL has a wide range of applications in various domains,such as smart city and autonomous driving.However,DCL faces significant challenges in ensuring its trustworthiness,as data isolation and privacy issues make DCL systems vulnerable to adversarial attacks that aim to breach system confidentiality,undermine learning reliability or violate data privacy.Therefore,it is crucial to design DCL in a trustworthy manner,with a focus on security,robustness,and privacy.In this survey,we present a comprehensive review of existing efforts for designing trustworthy DCL systems from the three key aformentioned aspects:security,robustness,and privacy.We analyze the threats that affect the trustworthiness of DCL across different scenarios and assess specific technical solutions for achieving each aspect of trustworthy DCL(TDCL).Finally,we highlight open challenges and future directions for advancing TDCL research and practice. | Dongxiao Yu Zhenzhen Xie Yuan Yuan Shuzhen Chen Jing Qiao Yangyang Wang Yong Yu Yifei Zou Xiao Zhang | 2023 | High-Confidence Computing2023，3，3： | 0 |
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