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| 1 | The Exhumation History of North Qaidam Thrust Belt Constrained by Apatite Fission Track Thermochronology:Implication for the Evolution of the Tibetan Plateau显示文摘Determining the spatio-temporal distribution of the deformation tied to the India-Eurasian convergence and the impact of pre-existing weaknesses on the Cenozoic crustal deformation is significant for understanding how the convergence between India and Eurasia contributed to the development of the Tibetan Plateau. The exhumation history of the northeastern Tibetan Plateau was addressed in this research using a new apatite fission track(AFT) study in the North Qaidam thrust belt(NQTB). Three granite samples collected from the Qaidam Shan pluton in the north tied to the Qaidam Shan thrust, with AFT ages clustering in the Eocene to Miocene. The other thirteen samples obtained from the Luliang Shan and Yuka plutons in the south related to the Luliang Shan thrust and they have showed predominantly the Cretaceous AFT ages. Related thermal history modeling based on grain ages and track lengths indicates rapid cooling events during the Eocene-early Oligocene and since late Miocene within the Qaidam Shan, in contrast to those in the Cretaceous and since the Oligocene-Miocene in the Luliang Shan and Yuka region. The results, combined with published the Cretaceous thermochronological ages in the Qaidam Shan region, suggest that the NQTB had undergo rapid exhumation during the accretions along the southern Asian Andean-type margin prior to the India-Eurasian collision. The Cenozoic deformation initially took place in the North Qaidam thrust belt by the Eocene, which is consistent with the recent claim that the deformation of the northeastern Tibetan Plateau initiated in the Eocene as a response to continental collision between India and Eurasia. The immediate deformation responding to the collision is tentatively attributed to the pre-existing weaknesses of the lithosphere, and therefore the deformation of the northeastern Tibetan Plateau should be regarded as a boundary-condition-dependent process. | CHENG Xiaogan LIN Xiubin WU Lei CHEN Hanlin XIAO Ancheng GONG Junfeng ZHANG Fengqi YANG Shufeng | 2016 | Acta Geologica Sinica(English Edition)2016，90，3： | 10 |
| 2 | Geochemistry of Ore-bearing Lamprophyre from the Cu-Ni Deposit in Dhi Samir,Yemen显示文摘Magmatic Cu-Ni 硫化物存款通常与 mafic-ultramafic 岩石被联系,煌斑岩是 Cu-Ni 硫化物存款的包围岩石之一,这没被报导。然而,在也门的 Dhi Samir 存款是在煌斑岩堤被招待的 Cu-Ni 存款的一个稀罕例子。在这篇论文,全面研究在 Dhi Samir 区域为 Cu-Ni-bearing 岩石在岩石学,石油化学和同位素地球化学上被做,结果证明与 Cu-Ni orebodies 有关的黑暗岩石是钠弱的钾并且属于计算碱的系列煌斑岩,特别 camptonite,由充实的碱,铁和钛描绘了。当高地力量元素稍微弄空时,在这些岩石 large-ion-lithophile,元素显然被集中,显示出清楚的否定异例 Ta 和 Nb,和 Ti 的弱缺乏。REE 是很,高度(225.67290.05 ppm ) 和 REE 分区弯扁平、使权利倾向,与低否定 Eu 异例展示一个充实 LREE 的模式。magmatic 来源区域的学习显示岩石有低(87Sr/86Sr ) 并且高 Nd (t) ,和岩浆可能从充实的披风被导出我(EM-I ) 结束成员。在锆石 U-Pb 同位素标明日期上基于 LA-ICPMS,在 Dhi Samir 采矿区域的煌斑岩有 602 precipi 的年龄吗?? | ZUO Liyan PEI Rongfu SHUAI Kaiye YANG Fengqi ZHU Riwei ZHANG Liemeng | 2011 | Acta Geologica Sinica(English Edition)2011，85，1： | 2 |
| 3 | Polyolmediated synthesis of water-soluble LaF3 :Yb,Er upconvers ion fluorescent nanocrystals 显示文摘 | Wei Yang Lu Fengqi Zhang Xinrong Chen Depu | 2007 | Materials Letters2007，61，6： | 1 |
| 4 | Stability Bound Analysis of Singularly Perturbed Systems with TimeDelay 显示文摘 | SUN Fengqi YANG Chunyu ZHANG Qingling | 2013 | Chemical lndustry & Chemical Engineering Quarterly2013，19，4： | 1 |
| 5 | Coupled-ridge waveguide quantum cascade laser array lasing at λ~5μm显示文摘In this work,we demonstrated high-power quantum cascade laser(QCL)arrays lasing at λ~5μm by employing an optimized coupled-ridge waveguide(CRW)structure.Five-element QCL arrays were simulated and fabricated through a two-step etching method to extend the CRW structure to a mid-wave infrared regime.A lateral far-field with the main peak near a diffraction-limited intensity curve of about 10°was observed by properly designing a geometric shape of the ridges and interspaces.By introducing a buried 2nd-order distributed feedback(DFB)grating,substrate emission with a radiation power above 1 W at 25℃ is achieved.Single longitudinal mode operation is obtained by changing the temperature of the heatsink with a good linear wavelength tuning coefficient of -0.2 cm^(-1)/K. | Pengchang Yang Jinchuan Zhang Zenghui Gu Chuanwei Liu Yue Zhao Fengmin Cheng Shenqiang Zhai Ning Zhuo Junqi Liu Lijun Wang Shuman Liu Fengqi Liu | 2021 | Journal of Semiconductors2021，42，9： | 1 |
| 6 | Preparation of Fe3O4/polystyrene composite particles from monolayer oleic acid modified Fe3O4 nanoparticles via miniemulsion polymerization显示文摘 | Feng Yan Jun Li Jianjun Zhang Fengqi Liu Wensheng Yang | 2009 | Journal of Nanoparticle Research2009，，2： | 1 |
| 7 | Synthesis and Thermal Properties of Three Energetic Ion Salts of 3,6-Bis[(1H-1,2,3,4-tetrazol-5-yl)-amino]- 1,2,4,5-tetr azine显示文摘Three energetic ion salts of 3,6-bis[(1H-1,2,3,4-tetrazol-5-yl)-amino]-1,2,4,5-tetrazine(BTATz), namely, methylamine salt(compound 1), ethylenediamine salt(compound 2), and diethylamine salt(compound 3), were synthesized and characterized by elemental analysis, Fourier transform infrared spectrometry, NMR spectroscopy, and ^13C NMR spectroscopy. The crystal structure of compound 1 was determined by single-crystal X-ray crystallography, and structural analysis revealed that it belonged to the monoclinic system with P21/c space group. In addition, the thermal behavior of the three compounds was studied by differential scanning calorimetry and thermogravimetry techniques. The thermal decomposition peak temperatures of the compounds were 574.89, 545.60, and 606.72 K, indicating that the three ion salts exhibited good thermal stability. Tlie kinetic mechanism equations of the main decomposition process and the entropy of activation(△S^≠), enthalpy of activation(△H^≠), and Gibbs free energy of activation(△G^≠) of the three compounds were also obtained. Moreover, the thermal safety of the compounds was evaluated by the values of the self^accelerated decomposition temperature(Tsadt)5 thermal ignition temperature(TTIT), and critical temperature of thermal explosion(7b). The results showed that all the compounds demonstrated good thermal safety, and the thermal safety of compound 3 was better than that of the others. | ZHOU Jie WU Shaojie ZHANG Wenhui LIU Qmg YANG Bin REN Yinghui MA Haixia ZHAO Fengqi HU Rongzu | 2019 | Chemical Research in Chinese Universities2019，35，3： | 1 |
| 8 | Optimization of Center of Gravity Position and Anti-Wave Plate Angle of Amphibious Unmanned Vehicle Based on Orthogonal Experimental Method显示文摘When the amphibious vehicle navigates in water,the angle of the anti-wave plate and the position of the center of gravity greatly influence the navigation characteristics.In the relevant research on reducing the navigation resistance of amphibious vehicles by adjusting the angle of the anti-wave plate,there is a lack of scientific selection of parameters and reasonable research of simulation results by using mathematical methods,and the influence of the center of gravity position on navigation characteristics is not considered at the same time.To study the influence of the combinations of the angle of the anti-wave plate and the position of the center of gravity on the resistance reduction characteristics,a numerical calculation model of the amphibious unmanned vehicle was established by using the theory of computational fluid dynamics,and the experimental data verified the correctness of the numerical model.Based on this numerical model,the navigation characteristics of the amphibious unmanned vehicle were studied when the center of gravity was located at different positions,and the orthogonal experimental design method was used to optimize the parameters of the angle of the anti-wave plate and the position of the center of gravity.The results show that through the parameter optimization analysis based on the orthogonal experimental method,the combination of the optimal angle of the anti-wave plate and the position of the center of gravity is obtained.And the numerical simulation result of resistance is consistent with the predicted optimal solution.Compared with the maximum navigational resistance,the parameter optimization reduces the navigational resistance of the amphibious unmanned vehicle by 24%. | Deyong Shang Xi Zhang Fengqi Liang Chunde Zhai Hang Yang Yanqi Niu | 2024 | Computer Modeling in Engineering & Sciences2024，139，5： | 0 |
| 9 | New insights in nano-copper chromite catalyzing ultrafine AP:Evaluation of dispersity and mixing uniformity显示文摘Improving the application of nanomaterials has always been a research hotspot in the field of energetic materials(EMs)due to their obvious catalytic effect on the EMs,especially the uniformly dispersed nanomaterials.However,few studies have reported the dispersion of nanomaterials.In this study,the dispersity and mixing uniformity of nano-CuCr_(2)O_(4)was evaluated based on the difference of solid UV light absorption between the nano-catalytic materials and EMs.The nano-CuCr_(2)O_(4)/ultrafine AP composites with different dispersity of nano-CuCr_(2)O_(4)were prepared by manual grinding and mechanical grinding with different grinding strength and griding time.And then,the absorbance of different samples at 212 nm was obtained by solid UV testing due to the high repeatability of the absorbance at 210-214 nm for three parallel experiments,and the dispersity of different samples was calculated through the established difference equation.Furthermore,the samples were characterized by XRD,IR,SEM,EDS,DSC and TG-MS,which confirmed that different mixing methods did not change the structure of the samples(XRD and IR),and the mixing uniformity improved with the increase of grinding strength and grinding time(SEM and EDS).The scientificity and feasibility of the difference equation were further verified by DSC.The dispersity of nano-CuCr_(2)O_(4)exhibits a positive intrinsic relationship with its catalytic performance,and the uniformly dispersed nano-CuCr_(2)O_(4)significantly reduces the thermal decomposition temperature of ultrafine AP from 367.7 to 338.8℃.The TG-MS patterns show that the dispersed nano-CuCr_(2)O_(4)advanced the thermal decomposition process of ultrafine AP by about 700 s,especially in the high temperature decomposition stage,and the more concentrated energy release characteristic is beneficial to further enhance the energy performance of AP-based propellants.The above conclusions show that the evaluation method of dispersity based on solid UV curves could provide new ideas for the dispersity characterization of nano-catalytic materials in EMs,which is expected to be widely used in the field of EMs. | Yong Kou Peng Luo Lei Xiao Yanping Xin Guangpu Zhang Yubing Hu Junqing Yang Hongxu Gao Fengqi Zhao Wei Jiang Gazi Hao | 2024 | Defence Technology(防务技术)2024，32，2： | 0 |
| 10 | Revealing the correlation between adsorption energy and activation energy to predict the catalytic activity of metal oxides for HMX using DFT显示文摘Traditional selection of combustion catalysis is time-consuming and labor-intensive.Theoretical calculation is expected to resolve this problem.The adsorption energy of HMX and O atoms on 13 metal oxides was calculated using DMol3,since HMX and O are key substances in decomposition process.And the relationship between the adsorption energy of HMX,O on metal oxides(TiO_(2),Al_(2)O_(3),PbO,CuO,Fe_(2)O_(3),Co_(3)O_(4),Bi_(2)O_(3),NiO)and experimental T30 values(time required for the decomposition depth of HMX to reach 30%)was depicted as volcano plot.Thus,the T30 values of other metal oxides was predicted based on their adsorption energy on volcano plot and validated by previous experimental data.Further,the adsorption energy of HMX on ZrO_(2)and MnO_(2)was predicted based on the linear relationship between surface energy and adsorption energy,and T30 values were estimated based on volcano plot.The apparent activation energy data of HMX/MgO,HMX/SnO_(2),HMX/ZrO_(2),and HMX/MnO_(2)obtained from DSC experiments are basically consistent with our predicted T30 values,indicating that it is feasible to predict the catalytic activity based on the adsorption calculation,and it is expected that these simple structural properties can predict adsorption energy to reduce the large quantities of computation and experiment cost. | Xiurong Yang Chi Zhang Wujing Jin Zhaoqi Guo Hongxu Gao Shiyao Niu Fengqi Zhao Bo Liu Haixia Ma | 2024 | Defence Technology(防务技术)2024，31，1： | 0 |
| 11 | Anti-obesity effects of fucoidan from Sargassum thunbergii in adipocytes and high fat diet induced obese mice through inhibiting adipogenic specific transcription factor显示文摘The prevalence of obesity has increased and is a health concern worldwide.Due to the concerns regarding synthetic anti-obesity treatments,nowadays natural products become a trend.Previous studies proved that there is a potential to use marine algae as anti-obesity agents.Therefore,in this study,the lipid inhibitory effect of crude polysaccharide of amyloglucosidase-assisted hydrolysate from Sargassum thunbergii(STAC)and its fucoidan fractions(STAFs)on 3T3-L1 cells and high-fat diet(HFD)-induced obese mice were investigated.According to the results,the STAF3,showed the highest xylose content and exhibited significant inhibitory effects on lipid accumulation by downregulating adipogenic and lipogenic proteins in 3T3-L1 cells.Furthermore,oral supplementation with STAC significantly declined gain in body weight and fat weight,and serum lipid contents in an HFD-induced obesity mouse model.Structural and chemical characterizations demonstrated that puritied STAF3 has consistent surface morphology and small particle size,with similar structural characteristics as commercial fucoidan.Together,these results indicate that STAC and purified STAF3 from Sargassum thunbergia is a potent source to develop as ananti-obesity agents or functional food products to counter obesity. | Hyo-Geun Lee H.H.A.C.K.Jayawardhana Fengqi Yang D.P.Nagahawaththa N.M.Liyanage Kyung-Mo Song Yun-Sang Choi Seung-Hong Lee You-Jin Jeon Min-Cheol Kang | 2024 | Food Science and Human Wellness2024，13，3： | 0 |
| 12 | Dual-mode distributed feedback quantum cascade laser based on stacked 3D monolithic integration for on-chip multi-channel gas sensing显示文摘To facilitate the development of on-chip integrated mid-infrared multi-channel gas sensing systems,we propose a high-power dual-mode(7.01 and 7.5μm)distributed feedback quantum cascade laser based on stacked 3D monolithic integration.Longitudinal mode control is achieved by preparing longitudinal nested bi-periodic compound one-dimensional Bragg gratings along the direction of the cavity length in the confinement layer.Additionally,transverse coherent coupling ridges perpendicular to the cavity length direction are fabricated in the upper waveguide layer to promote the fundamental transverse mode output when all ridges are in phase.Stable dual-wavelength simultaneous emission with a side-mode suppression ratio of more than 20 dB was achieved by holographic exposure and wet etching.The entire spectral tuning range covers nearly 100 nm through joint tuning of the injection current and heat-sink temperature.High peak power and beam quality are guaranteed by the parallel coherent integration of seven-element ridge arrays.The device operates in a fundamental supermode with a single-lobed far-field pattern,and its peak output power reaches 3.36 W in pulsed mode at 20℃.This dual-mode laser chip has the potential for in-situ on-chip simultaneous detection of CH4and C2H6gases in leak monitoring. | XIYU LU YANJIAO GUAN PENGCHANG YANG SHAN NIU YU MA LIJUN WANG NING ZHUO JINCHUAN ZHANG SHENQIANG ZHAI FENGMIN CHENG SHUMAN LIU FENGQI LIU JUNQI LIU | 2023 | Photonics Research2023，11，12： | 0 |
| 13 | Researches on Thermal Decomposition Kinetics of Composite Modified Double-base Propellants显示文摘合成修改双底( CMDB )的热分解动力学有 hexogeon ( RDX )的一系列内容的燃料被使用 Teo , Ti , Tp , Tf , Tb , Ta , E , lg A 和 H 的参数调查,它从使用微分扫描热量计( DSC )和Perkin榆树 Pyris 1 thermogravimetric 分析器( TG )与加热 5 , 10 , 15 和 20 K/min 的率分析的 CDR-4P 被获得。可靠激活精力在分析热分解机制前用 Flynn-Wall-Ozawa 方法被计算。TG-DTG 曲线与 Malek 方法被对待以便获得反应机制。获得的结果证明有从 0.2 ~ 0.4 的变换的热分解机制是 f() 1/2,并且与从 0.5 ~ 0.7 的变换是 f()(1/4 )(1 ?)[? ln (1 ?)]? 3。 | Tang, Zhan Ren, Yan Yang, Li Zhang, Tonglai Qiao, Xiaojing Zhang, Jianguo Zhou, Zunning Zhao, Fengqi Dang, Yongzhan Xu, Siyu Yi, Jianhua | 2011 | Chinese Journal of Chemistry2011，29，3： | 0 |
| 14 | Construction of smart propellant with multi-morphologies显示文摘Smart materials,which exhibit shape memory behavior in response to external stimuli,have shown great potential for use in biomedical applications.In this study,an energetic composite was fabricated using a UV-assisted DIW 3D printing technique and a shape memory material(SMP)as the binder.This composite has the ability to reduce the impact of external factors and adjust gun propellant combustion behavior.The composition and 3D printing process were delineated,while the internal structure and shape memory performance of the composite material were studied.The energetic SMP composite exhibits an angle of reversal of 18 s at 70°,with a maximum elongation typically reaching up to 280% of the original length and a recovery length of approximately 105%during ten cycles.Additionally,thermal decomposition and combustion behavior were also demonstrated for the energetic SMP composite. | Weitao Yang Yuchen Gao Rui Hu Manman Li Fengqi Zhao He Jiang Xuan Zhang | 2024 | Defence Technology(防务技术)2024，33，3： | 0 |
| 15 | A review on surface coating strategies for anti-hygroscopic of high energy oxidizer ammonium dinitramide显示文摘Ammonium dinitramide(ADN),which has the advantages of high energy density,no halogen and low characteristic signal,is not only considered as a new high-energy oxidizer that is expected to replace the traditional oxidizer ammonium perchlorate(AP)in solid propellants,but also a good performance explosive in itself.However,due to the strong hygroscopicity of ADN,its application in solid propellants and explosives is greatly limited.Solving the hygroscopicity of ADN is the key to realize the wide application of ADN.In this paper,we systematically review the research progress of anti-hygroscopic strategies of ADN coating.The surface coating methods are focusing on solvent volatilization,solvent-non-solvent,melt crystallization and atomic layer deposition technology.The characteristics of the different methods are compared and analyzed,and the basis for the classification and selection of the coating materials are introduced in detail.In addition,the feasibility of material for surface coating of ADN is evaluated by several compatibility analysis methods.It is highly expected that the liquid phase method(solvent volatilization method,solvent-non-solvent method)would be the promising method for future ADN coating because of its effective,safety and facile operation.Furthermore,polymer materials,are the preferred coating materials due to their high viscosity,easy adhesion,good anti-hygroscopic effect,and heat resistance,which make ADN weak hygroscopicity,less sensitive,easier to preserve and good compatibility. | Hongyu Yang Fuyao Chen Yiwen Hu Qiangqiang Lu Lei Xiao Yinglei Wang Fengqi Zhao Wei Jiang Gazi Hao | 2024 | Defence Technology(防务技术)2024，33，3： | 0 |
| 16 | Synthesis and Thermodynamic Properties of M2L[M=Li, Na; L=3,6-Bis(1H-1,2,3,4-tetrazol-5-yl-amino)-1,2,4,5-tetrazine]显示文摘 | ZHANG Wenhui LIU Qing REN Yinghui YANG Bin ZHANG Xianbo ZHANG Chao MA Haixia ZHAO Fengqi HU Rongzu | 2018 | Chemical Research in Chinese Universities2018，34，2： | 0 |
| 17 | Carrier balance and linear magnetoresistance in type-II Weyl semimetal WTe2显示文摘 | Xing-Chen Pan Yiming Pan Juan Jiang Huakun Zuo Huimei Liu Xuliang Chen Zhongxia Wei Shuai Zhang Zhihe Wang Xiangang Wan Zhaorong Yang Donglai Feng Zhengcai Xia Liang Li Fengqi Song Baigeng Wang Yuheng Zhang Guanghou Wang | 2017 | Frontiers of physics2017，12，3： | 0 |
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