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Effective suppression of mode distortion induced by amplifiers stimulated Raman scattering in high-power fiber

High Power Laser Science and engineering 2021年第2期9卷 135-141页

作者： Wei Gao Wenhui Fan pei ju Gang Li Yanpeng Zhang Aifeng He Qi Gao Zhe Li State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China Key Laboratory for Physical Electronics and Devices of the Ministry of Education&Shaanxi Key Laboratory of Information Photonic Technique Xi’an Jiaotong UniversityXi’an 710049China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory on Applied Physics and Chemistry Shaanxi Applied Physics and Chemistry Research InstituteXi’an 710061China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China

Mode distortion induced by stimulated Raman scattering(SRS)has become a new obstacle for the further development of high-power fiber lasers with high beam ***,an approach for effective suppression of the SRS-induced mode distortion in high-power fiber amplifiers has been demonstrated experimentally by adjusting the seed power(output power of seed source)and forward feedback coefficient of the rear port in the seed *** is shown that the threshold power of the SRS-induced mode distortion can be increased significantly by reducing the seed power or the forward feedback ***,it has also been found that the threshold power is extremely sensitive to the forward feedback power value from the rear *** influence of the seed power on the threshold power can be attributed to the fact that the seed power plays an important role in the effective length of the gain fiber in the *** influence of the forward feedback coefficient on the threshold power can be attributed to the enhanced SRS configuration because the end surface of the rear port together with the fiber in the amplifier constitutes a half-opening *** suppression approach will be very helpful to further develop the high-power fiber amplifiers with high beam quality.

关键词： high-power fiber amplifiers mode distortion stimulated Raman scattering suppression

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Simulation for Improvement Plan of the Fluidized Bed Structure in the Bulk Cement Tanker Based on FLUENT

Simulation for Improvement Plan of the Fluidized Bed Structu...

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2012年计算机应用与系统建模国际会议

作者： pei Weichi Han ju Li Yaogang Hebei United University

Structural parameters of the fluidized bed is the most important components to influence the performance index of the bulk cement tankers. The paper is focused on some types of bulk cement tank truck, proposed to a research programs to improve the fluidization quality of the fluidized bed that substitute Y-type fluidization board by rectangle fluidization board. Created the fluidization models of this improvement plan in the CFD (Computational Fluid Dynamics) software FLUENT, then simulated for improved fluidization process, and given the analysis for fluidization quality. The simulation results show that the rectangle fluidization board are able to improve the fluidization quality of the cement in tanker. The improvement of their structure in the original basis of bulk materials vehicles can improve their serviceability and work efficiency.

关键词： Fluidized bed Bulk cement tanker Simulation FLUENT

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Canon-π Interactions. Synthesis and Crystal Structure of Palladium Complex:[K(DB18C6)]_2[Pd(SCN)_4]

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Chinese Chemical Letters 2000年第5期11卷 463-466页

作者： Jian Min DOU Ying LIU Lan Ying ZHU De Zhi SUN pei ju ZHengZ Chen Xia DU Yu ZHU (Department of Chemistry and Biology, Liaochcng Teacher’s University, Liaocheng 252000 Research Center of Analysis and Measurement Fudan University, Shanghai 200433 ~3Key La Department of Chemistry and Biology Liaocheng Teacher's University Liaocheng 252000 China Res. Ctr. of Anal. and Measurement Fudan University Shanghai 200433 China Key Laboratory of Applied Chemistry Zhengzhou University Zhengzhou 450052 China

A novel Pd(Ⅱ)-dibenzo-18-crown-6(DB18C6) complex [K(DB18C6)]_2, [Pd(SCN)_4] has been isolated and characterized by X-ray diffraction analysis. In the solid state, it displays a quasi- one-dimensional infinite chain of two [K(DB18C6)]+ complex canons and a [Pd(sCN)_4]^(2-) anion bridged by K+-π interactions between adjacent [K(DB18C6)] + units.

关键词： Canon-π interacions crown ether bestal Structure palladium complex.

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Synthesis and Crystal Structure of (E)-[1-Ferrocenyl-2-(4-Chlorophenyl) ethylene]

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Chinese Journal of Structural Chemistry 1997年第4期16卷 315-319页

作者： QIAN Ying SUN Yue-Ming LIU ju-Zheng(Department of Chemistry, Southeast University, Nanjing, 210018)CHEN Jian HU Chun-Hua ZHeng pei-ju(Research Center of Analysis and Measurement, Fudan University, Shanghai, 2OO433) 东南大学化学系江苏南京复旦大学分析测试中心上海

The single crystal structure of the donor-acceptor ferrocenyl derivativeC18H15ClFe (Mr = 322. 62 ) has been determined, belonging to orthorhombic crystalsystem, space group P212121 with lattice parameters a= 11. 307 (2), b= 8. 471 (2 ), c=15. 427(3) A, V= 1477. 7(9) A3, Z=4, D.= 1. 45 g. cm-3, λ(MoKα) =0. 71073A,μ= 11. 9 cm-1, F(000) = 664. The final R value for 1534 observed [I>3σ(I)] reflec-tions is 0. 060. The configuration of the C =C double bond is trans. The C5H4CH =CHC6H4Cl fragrnent is almost planar. The rings of ferrocene are almost in the eclipsedpositions with each other.

关键词： ferrocenyl derivative crystal structure donor-acceptor compound transconfiguration

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基于多目标设计决策的城市形态与能耗相关性

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同济大学学报（自然科学版） 2021年第7期49卷 1013-1022页

作者：周艺南杨沛儒北京交通大学建筑与艺术学院北京100044 同济大学建筑与城市规划学院上海200092 佐治亚理工学院设计学院亚特兰大30332

提出了被动式能源街区概念,并建立了多要素关联作用下的城市形态与能耗研究框架。运用多目标设计决策(MDO),以上海气候条件下的3个模拟实验为例,揭示了由建筑类型、街区容量、使用模式等城市形态要素改变而引发的建筑能耗变化规律。最后... 详细信息

提出了被动式能源街区概念,并建立了多要素关联作用下的城市形态与能耗研究框架。运用多目标设计决策(MDO),以上海气候条件下的3个模拟实验为例,揭示了由建筑类型、街区容量、使用模式等城市形态要素改变而引发的建筑能耗变化规律。最后,给出了被动式能源街区的城市空间形态优化设计策略。

关键词：低碳城市城市形态被动式能源街区多目标设计决策能耗节能

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Photodynamic Therapy of Oligoethylene GlycoI-Dendronized Reduction-Sensitive Porphyrins

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Chinese Journal of Chemistry 2017年第9期35卷 1445-1451页

作者： Mingjie ju jundi Pang Ligong Xu School of Sports Science and engineering East China University of Science and Technology Shanghai 200237 China Kunming Medical University Kunming Yunnan 650500 China

Graphene oxide （GO） and its functionalized derivatives have attracted increasing attention in medical treatment. Herein, a reduction sensitive pei-GO-SS-TPP was synthesized for photodynamic therapy. More than 80% porphyrin release was observed in the presence of 10 mmol·L^-1 DTT in one day. The confocal laser scanning microscopy confirmed that the cell uptake efficiency of pei-GO-SS-TPP was remarkably enhanced as compared to free porphyrin which was significantly dependent on incubation time. For photodynamic therapy, GSH-OEt could effectively increase the photodynamic therapy efficiency of pei-GO-SS-TPE Compared with free porphyrin, the toxicity from pei-GO-SS-TPP is much higher with a low IC50 （2.1 μg/mL） value. All results indicate that the pei-GO-SS-TPP PSs are promising for photodynamic therapy.

关键词： graphene oxide photodynamic therapy porphyrindisulfide

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Analysis of the Influence of the Self-efficacy of College Students on Their Response Behaviors Toward COVID-19

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Psychosomatic Medicine Research 2021年第4期3卷 175-182页

作者： ju-Hua Liu Yan-Ni Mao Yu He pei-pei Bai Jing Ouyang Jing Zhang School of Humanities Management Shaanxi University of Chinese MedicineXianyangChina The New Style Think Tank of Shaanxi Universities:‘The Belt and Road’Research Center for Health Development of Traditional Chinese Medicine XianyangChina.

Objective:This study aims to investigate the self-efficacy of college students during the Coronavirus disease 2019(COVID-19)pandemic and to conduct an empirical analysis on its influence mechanism on decision-making and coping skills to provide reference for decision support to improve the coping behavior of college students during public health ***:The study recruited a total of 1,346 college students in *** were collected via a questionnaire and analyzed using SPSS 22.0 and AMOS ***:The self-efficacy of the college students exerted a significantly positive impact on their coping decisions(β=0.754)and coping skills(β=0.822)during the COVID-19 *** passed the significance test at a 99.9%confidence interval(99%CI).Conclusion:During the COVID-19 pandemic,improving the self-efficacy of college students can significantly positively influence their coping ***,providing effective interventions that target the self-efficacy of college students and encouraging them to adopt positive coping behaviors is necessary.

关键词： COVID-19 Self-efficacy Coping decisions Coping skills Structural equation model

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不同Ni含量NiCoAl LDH的制备及CNT/Ni0.3CoAl LDH材料的电化学性能

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无机化学学报 2020年第10期36卷 1906-1916页

作者：唐爱菊米常焕陈佩佩南京航空航天大学材料科学与技术学院江苏省高效电化学储能技术重点实验室南京210016

利用水热法一步合成了不同镍、钴元素比例的镍钴铝层状氢氧化物(NiCoAl LDH),并探究了不同Ni元素含量的NiCoAl LDH的电化学性能,在Ni和Co的物质的量之比为3:7时,Ni0.3CoAl LDH具有最优电化学性能。晶格中部分Ni元素被Co元素代替有利于... 详细信息

利用水热法一步合成了不同镍、钴元素比例的镍钴铝层状氢氧化物(NiCoAl LDH),并探究了不同Ni元素含量的NiCoAl LDH的电化学性能,在Ni和Co的物质的量之比为3:7时,Ni0.3CoAl LDH具有最优电化学性能。晶格中部分Ni元素被Co元素代替有利于降低氧化电势,提高材料的化学可逆性。然后通过水热法将CNT与Ni0.3CoAl LDH复合,CNT的复合提高了材料的导电性。CNT/Ni0.3CoAl LDH在1 A·g^-1的电流密度下比容量为1332 F·g^-1,电流密度为10 A·g^-1时比容量保持率为60.4%。在5 A·g^-1的电流密度下循环3000圈容量保持率为87.6%。

关键词：碳纳米管复合材料水热法电化学性能

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Combined gene therapy of endostatin and interleukin 12 with polyvinylpyrrolidone induces a potent antitumor effect on hepatoma

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World Journal of Gastroenterology 2004年第15期10卷 2195-2200页

作者： pei-YuanLi ju-ShengLin Zuo-HuaFeng Yu-FeiHe He-junZhou XinMa Xiao-KunCai De-AnTian InstituteofLiverDiseases TongjiHospitalTongjiWuhan430030HubeiProvinceChina DepartmentofBiochemistryandMolecularBiology TongjiMedicalCollegeHuazhongUniversityofScienceandTechnologyWuhan430030HubeiProvinceChina

AIM: To study the antitumor effect of combined gene therapy of endostatin and interleukin 12 (IL-12) with polyvinylpyrrolidone (PVP) on mouse transplanted ***: Mouse endostatin eukaryotic plasmid (pSecES) with a mouse Igk signal sequence inside and mouse IL-12 eukaryotic plasmid (pmIL-22) were transfected into BHK-22cells respectively. Endostatin and IL-22 were assayed by ELISA from the supernant and used to culture endothelial cells and spleen lymphocytes individually. Proliferation of the latter was evaluated by M-I-r. H22 cells were inoculated into the leg musde of mouse, which was injected intratumorallywith pSecES/PVP, pmIL-12/PVP or pSecES+pmIL-12/PVPrepeatedly. Tumor weight, serum endostatin and serumIL-22 were assayed. Tumor infiltrating lymphocytes, tumormicrovessel density and apoptosis of tumor cells were also displayed by HE staining, CD32 staining and ***: Endostatin and IL-12 were secreted after transfection, which could inhibit the proliferation of endothelial cells or promote the proliferation of spleen *** growth was highly inhibited by 92.8% after injection of pSecES+pmIL-i2/PVP accompanied by higher serum endostatin and IL-22, more infiltrating lymphocytes, fewertumor vessels and more apoptosis cells compared with injection of pSecES/PVP, pmIL-i2/PVP or vector/***: Mouse endostatin gene and IL-12 gene can be expressed after intratumoral injection with *** of hepatoma can be inhibited synergisticly,lymphocytes can be activated to infiltrate, and tumor cells are induced to apoptosis. Hepatoma can be highly inhibited or eradiated.

关键词：组合基因白细胞间介素12 聚乙烯吡咯烷酮 IL-12 感应抗癌作用肝细胞癌肿瘤 PVP

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锆-茜素红络合物在碳黑微电极上的阳极吸附伏安法研究

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冶金分析 2008年第1期28卷 6-10页

作者：邓培红张军黎拒难衡阳师范学院化学与材料科学系湘潭大学化学学院

通过研究锆-茜素红络合物在碳黑微电极上的阳极吸附伏安行为,提出了一种测定痕量锆的新方法。在极谱分析仪上采用二次导数线性扫描伏安法进行分析,在0.128 mol/L氨基乙酸-0.048 mol/L邻苯二甲酸氢钾缓冲溶液(pH 4.3)中,在200 mV富集60 s... 详细信息

通过研究锆-茜素红络合物在碳黑微电极上的阳极吸附伏安行为,提出了一种测定痕量锆的新方法。在极谱分析仪上采用二次导数线性扫描伏安法进行分析,在0.128 mol/L氨基乙酸-0.048 mol/L邻苯二甲酸氢钾缓冲溶液(pH 4.3)中,在200 mV富集60 s,从200~1 200 mV以200 mV/s的速率线性扫描,研究发现,络合物吸附在碳黑微电极表面,于860 mV(***)处产生一灵敏的溶出峰,为络合物中配体茜素红的氧化所产生。峰电流与锆的浓度在6.0×10-11~2.0×10-7mol/L范围内呈良好的线性关系,检出限为2.0×10-11mol/L(富集时间180 s)。方法用于岩矿标准样品中痕量锆的测定,相对标准偏差为2.2%~2.8%,相对误差为-2.8%~3.5%,测定结果同认定值相一致。

关键词：碳黑微电极锆阳极吸附伏安法

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