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17篇 您的检索式:作者名="Sen PANG"
    题名 作者 年代 出处 被引量
1Hazard evaluation of ignition sensitivity and explosion severity for three typical MH_(2) (M=Mg,Ti,Zr)of energetic materials显示文摘MgH_(2),TiH_(2),and ZrH_(2) are three typical metal hydrides that have been gradually applied to composite explosives and propellants as additives in recent years.To evaluate ignition sensitivity and explosion severity,the Hartmann device and spherical pressure vessel were used to test ignition energy and explosion pressure,respectively.The results showed that the ignition sensitivity of ZrH_(2),TiH_(2) and MgH_(2) gradually increased.When the concentration of MgH_(2) is 83.0 g/m^(3) in Hartmann device,the ignition energy attained a minimum of 10.0 mJ.The explosion pressure of MgH_(2) were 1.44 times and 1.76 times that of TiH_(2) and ZrH_(2),respectively,and the explosion pressure rising rate were 3.97 times and 9.96 times that of TiH_(2) and ZrH_(2),respectively,through the spherical pressure vessel.It indicated that the reaction reactivity and reaction rate of MgH_(2) were higher than that of TiH_(2) and ZrH_(2).In addition,to conduct in edepth theoretical analysis of ignition sensitivity and explosion severity,gas production and combustion heat per unit mass of ZrH_(2),TiH_(2) and MgH_(2) were tested by mercury manometer and oxygen bomb calorimetry.The experimental results revealed that MgH_(2) had a relatively high gas production per unit mass(5.15 mL/g),while TiH_(2) and ZrH_(2) both had a gas production of less than 2.0 mL/g.Their thermal stability gradually increased,leading to a gradual increase in ignition energy.Furthermore,compared with theoretical combustion heat,the combustion ratio of MgH_(2),TiH_(2) and ZrH_(2) was more than 96.0%,with combustion heat value of 29.96,20.94 and 12.22 MJ/kg,respectively,which was consistent with the explosion pressure and explosion severity test results.Xing-liang Wu Sen Xu Ai-min Pang Wei-guo Cao Da-bin Liu Xin-yu Zhu Fei-yang Xu Xu Wang 2021Defence Technology(防务技术)2021,17,4:6
2Effects of Ligustrazine Combined with Cisdichlorodiamine Platinum on Anti-proliferation,Cell Cycle and Apoptosis of Human Gastric Carcinoma SGC-7901 Cell Lines显示文摘[Objective] This study aimed to investigate the combination effects of ligustrazine and cis-dichlorodiamine platinum(DDP) on anti-proliferation, cell cycle and apoptosis of SGC-7901 cell lines in vitro. [Method] SGC-7901 cells were treated with ligustrazine and DDP alone or combined for 48 h for morphology assay.Anti-proliferative effects with the same treatment for 24, 48 and 72 h were assayed by MTT method, respectively. Cell cycle distribution and apoptosis assay of treated cells were performed in flow cytometry. Zhengjun Jin's protocol was used to assay the effect of drug combination. [Result] Ligustrazine significantly increased the proliferation inhibition rate of DDP on SGC-7901 cells in combination with DDP, comparing with the effects of ligustrazine or DDP alone, and exhibited synergistic antitumor effect. The combination drug treatment induced cell cycle arrest occurred in S and G2 phase of the cell cycle and increased the apoptosis rate significantly.[Conclusion] Our results indicate that ligustrazine, as a low-toxic and natural herbal component, can significantly increase the anti-proliferative effect and apoptosis rate of antitumor drug DDP on human gastric carcinoma SGC-7901 cells.Liyan LI Tao HUANG An JIA Huili HOU Sen PANG Yuzhen WANG 2014Agricultural Science & Technology2014,15,9:2
3Effects of crystallization on corrosion behaviours of a Ni-based bulk metallic glass显示文摘The effects of microstructure change on the corrosion behaviours of Ni55Nb20Ti10Zr8Co7 bulk glass-forming alloy were investigated in 1 mol/L HCl and 0.5 mol/L H2SO4 solutions. Different microstructures of the Ni-based alloy were achieved by annealing the bulk glassy rod prepared by copper mould casting. The microstructure, grain size, grain distribution, and phase composition were characterized. Electrochemical behaviours of the Ni-based alloy were revealed by static immersion and anodic potentiodynamic polarization tests. It is indicated that the corrosion behaviours of the Ni-based bulk glass-forming alloy are related to its microstructures, while the fully crystallized alloy exhibits a relatively lower corrosion resistance than those of the amorphous states.Sen Liu Lu Huang Shu-jie Pang Tao Zhang 2012International Journal of Minerals,Metallurgy and Materials2012,19,2:1
4EIF4E over-expresses and enhances cell proliferation and cell cycle progression in nasopharyngeal carcinoma显示文摘Mengyan Wu Yingxia Liu Xiaoqing Di Haixian Kang Hua Zeng Yi Zhao Kangrong Cai Tianyun Pang Sen Wang Yunhong Yao Xinrong Hu 2013Medical Oncology2013,,1:1
5A sensitive and specific liquid chromatography mass spectrometry method for simultaneous determination of berberine, palmatine, coptisine, epiberberine and jatrorrhizine from Coptidis Rhizoma in rat plasma显示文摘Sen Y Pang X Y Deng Y X 2007Inter J Mass Spect2007,268,1:1
6Evaluation of Acute and Developmental Effects of Difenoconazole via Multiple Stage Zebrafish Assays显示文摘MU Xi-yan PANG Sen SUN Xing-ze et ol 2013Environmental Pollution2013,175,:1
7A sensitive and specific liquid chromato graphy mass spectrometry method for simultaneous determination of berberine,palmatine,coptisine,epiberberine and jatrorrhizine from Coptidis Rhizoma in rat plasma显示文摘Yu Sen Pang Xiaoyan Deng Yuanxiong 2007Mass Spectrom2007,268,:1
8HPV E6 induces eIF4E transcription to pro- mote the proliferation and migration of cervical cancer 显示文摘Sen Wang Tianyun Pang Min Gao Haixian Kang Weibin Ding Xiwen Sun Yi Zhao Wei Zhu Xudong Tang Yunhong Yao Xinrong Hu 2013FEBS Lett2013,587,6:1
9EIF4E over-expresses and enchances cell proliferation and cell cycle progression in nasopharyngeal carci- noma 显示文摘Mengyan Wu Yingxia Liu Xiaoqing Di Haixian Kang Hua Z Yi Zhao Kangyong Cai Tianyun Pang Sen Wang Yun- hong Yao Xinrong Hu 2013Med Oncol2013,30,1:1
10Evaluation method and optimization strategies of resilience for air&space defense system of systems based on kill network theory and improved self-information quantity显示文摘Resilience of air&space defense system of systems(SoSs)is critical to national air defense security.However,the research on it is still scarce.In this study,the resilience of air&space defense SoSs is firstly defined and the kill network theory is established by combining super network and kill chain theory.Two cases of the SoSs are considered:(a)The kill chains are relatively homogenous;(b)The kill chains are relatively heterogenous.Meanwhile,two capability assessment methods,which are based on the number of kill chains and improved self-information quantity,respectively,are proposed.The improved self-information quantity modeled based on nodes and edges can achieve qualitative and quantitative assessment of the combat capability by using linguistic Pythagorean fuzzy sets.Then,a resilient evaluation index consisting of risk response,survivability,and quick recovery is proposed accordingly.Finally,network models for regional air defense and anti-missile SoSs are established respectively,and the resilience measurement results are verified and analyzed under different attack and recovery strategies,and the optimization strategies are also proposed.The proposed theory and method can meet different demands to evaluate combat capability and optimize resilience of various types of air&space defense and similar SoSs.Qi Han Bo Pang Sen Li Ning Li Peng-song Guo Cheng-li Fan Wei-min Li 2023Defence Technology(防务技术)2023,21,3:1
11Attrition of Granular Activated Carbon Dining Air Scour Followed by Water Back-wash and the Impact on Filter Performance 显示文摘Hui Sen Pang Caroline S B Fitzpatrick 2005Journal of Water Supply: Research and Technology AQUA2005,,3:1
12A Nuclear Green Light显示文摘PRO Supporters of the NSG’s decision argue that the policy change will keep nuclear technology and materials off the black market, ultimately making the world a saferPANG SEN vice president and director general of United Nations Associations-China 2008Beijing Review2008,51,39:0
13Primary Research on UVB-irradiation Protective Effect of Total Flavonoids from Large-leaved Kuding Tea (Ilex latifolia Thunb.)显示文摘Total flavonoids extracted from large-leaved Kuding tea(Ilex latifolia Thunb.) were investigated to develop anti-UV sun-screening agents. The results showed that total flavonoids of I. latifolia Thunb.(TFILT) showed maximum absorb peak at 325 nm between UVB and UVA by wavelength scanning spectrum. TFILT could inhibit the decrease of cell viability induced by UVB irradiation by CCK-8 method, and 0.25 mg/ml of TFILT showed the most significant protective activity on cells. The dermal thickness and collagen fiber density as skin structural characteristic were analyzed by Histological staining. The results showed that TFILT protected mice skin by significantly attenuating the dermal thickness and inhibiting collagen fiber degradation. The mechanism in vivo needs to be further confirmed in future.Liyan LI Tao HUANG Sen PANG Xiaoning LIU 2022Agricultural Biotechnology2022,11,5:0
14Single-phase white-emitting and tunable color phosphor Na_(3)Sc_(2)(PO_(4))_(3):Eu^(2+),Dy^(3+): Synthesis, luminescence and energy transfer显示文摘A series of Eu^(2+)/Dy^(3+) single doped and co-doped Na_(3)Sc_(2)(PO_(4))_(3) phosphors were synthesized by the high-temperature solid-state method,and their phase,morphology,and luminescence properties were characterized.Under the excitation of 370 nm,the Na_(3)Sc_(2)(PO_(4))_(3):Eu^(2+),Dy^(3+) phosphor can emit white light whose spectrum is composed of a broad emission band centered at 460 nm and the other three peaks at 483,577,and 672 nm,respectively.There is energy transfer from Eu^(2+)to Dy^(3+)ion in Na_(3)Sc_(2)(PO_(4))_(3):Eu^(2+),Dy^(3+) phosphor due to the good overlap between the emission spectrum of Na_(3)Sc_(2)(PO_(4))_(3):Eu^(2+) and the excitation spectrum of Na_(3)Sc_(2)(PO_(4))_(3):Dy^(3+),which is further confirmed by the fluorescence lifetime decrease of Eu^(2+)ion with the increase of Dy^(3+) concentration.The process of energy transfer is via dipole–quadruple interaction which is confirmed by applying Dexter's theory.By increasing the Dy^(3+)concentration,the color coordinates of the Na_(3)Sc_(2)(PO_(4))_(3):0.01Eu^(2+),xDy^(3+)phosphors can be adjusted from blue to white,and then to yellow.The optimized concentration of Dy^(3+)ions is 4.0 mol%,beyond which the concentration quenching will take place.The Na_(3)Sc_(2)(PO_(4))_(3):Eu^(2+),Dy^(3+)phosphor shows fairly good resistance to thermal quenching behavior,of which the emission intensity at 423 K can maintain 90.3%of the initial value(298 K).These results suggest that the Na_(3)Sc_(2)(PO_(4))_(3):0.01Eu^(2+),xDy^(3+)phosphors have potential applications as the color-tunable or a single-phase white emitting phosphor in white LEDs.Sen Wang Haiyan Wu Xin Wen Yanqing Luo Tao Tan Shengjian Jiao Ran Pang Lihong jiang Su Zhang Da Li Guanyu Liu Chengyu Li Hongjie Zhang 2022Journal of Rare Earths2022,40,4:0
15We Still Stand a Chance显示文摘The path to a nuclear weapons free world is strewn with rocks but the issues can be resolved During the past year, Korean and IranianPANG SEN 2009Beijing Review2009,52,51:0
16Handmade tri-leaflet ePTFE conduits versus homografts for right ventricular outflow tract reconstruction显示文摘Background This study aimed to investigate the performance of handmade tri-leaflet expanded polytetrafluoroethylene(ePTFE)conduits in the absence of a suitable homograft.Methods Patients who underwent right ventricular outflow tract reconstruction with tri-leaflet ePTFE conduits or homografts between December 2016 and August 2020 were included.The primary endpoint was the incidence of moderate or severe conduit stenosis(>36 mmHg)and/or moderate or severe insufficiency.The secondary endpoint was the incidence of severe conduit stenosis(>64 mmHg)and/or severe insufficiency.Results There were 102 patients in the ePTFE group and 52 patients in the homograft group.The median age was younger[34.5(interquartile range:20.8-62.8)vs.60.0(interquartile range:39.3-81.0)months,P=0.001]and the median weight was lower[13.5(10.0-19.0)vs.17.8(13.6-25.8)kg,P=0.003]in the ePTFE group.The conduit size was smaller(17.9±2.2 vs.20.5±3.0 mm,P<0.001)and the conduit Z score was lower(1.48±1.04 vs.1.83±1.05,P—0.048)in the ePTFE group.There was no significant difference in the primary endpoints(log rank,T3=0.33)and secondary endpoints(log rank,P=0.35).Multivariate analysis identified lower weight at surgery[P=0.01;hazard ratio:0.75;95%confidence interval(CI)0.59-0.94]and homograft conduit use(P=0.04;hazard ratio:8.43;95%CI 1.14—62.29)to be risk factors for moderate or severe conduit insufficiency.No risk factors were found for moderate or severe conduit stenosis or conduit dysfunction on multivariate analysis.Conclusion Handmade tri-leaflet ePTFE conduits showed acceptable early and midterm outcomes in the absence of a suitable homograft,but a longer follow-up is needed.Guan-Xi Wang Feng-Qun Mao Kai Ma Rui Liu Kun-Jing Pang Sen Zhang Yang Yang Ben-Qing Zhang Shou-Jun Li 2022World Journal of Pediatrics2022,18,3:0
17The Nightmare of Proliferation显示文摘The Iranian nuclear issue takes an ominous turn with Tehran’s recent declaration of its ability to enrich uranium to a higherPANG SEN & ZHOU WENYI 2010Beijing Review2010,53,10:0
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