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间膦酸基偶氮氯膦类似物的合成及其应用

化学试剂 1982年第6期 343-345页

作者：陈震华赵保平唐咏秋武汉大学化学系

不对称变色酸双偶氮衍生物的合成与应用受到了普遍重视,已合成了数以百计的含各种功能团的化合物。本文报导间膦酸基偶氮氯膦衍生物的合成及其应用,其衍生物的结构为:

关键词：偶氮氯磷 HCI 络合物配位化合物络合反应酸度胶束增溶类似物同型物

空气-氩气冷却ICP-AES测定环烷酸镍中的镍、铁、镁和钙

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分析测试通报 1992年第1期11卷 83-86页

作者：杜一平唐咏秋朱明华齐齐哈尔轻工学院化工系华东化工学院分析测试中心

本文介绍采用空气-氩气冷却ICP直接测定了以甲基异丁基酮稀释的环烷酸镍溶液中部分金属的含量。并研究了方法的工作条件、检出限和乙醇的影响。本法快速简便,结果令人满意。

关键词：环烷酸镍金属含量测定 ICP-AES

应用住院病人费用清单过程中存在的问题及对策

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护理研究（下半月） 2004年第10期18卷 1871-1872页

作者：汤永秋马利宋含珍新疆生产建设兵团农六师医院

为适应市场经济下医院发展的需要,让住院病人明明白白地消费,我院自2000年起实施住院病人费用清单,包括每日一清单及出院时费用总清单.现对实施过程中存在的问题分析如下.

关键词：住院病人费用清单问题对策

Partial organic fertilizer substitution promotes soil multifunctionality by increasing microbial community diversity and complexity

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Pedosphere 2023年第3期33卷 407-420页

作者： Quan tang yongqiu XIA Chaopu TI Jun SHAN Wei ZHOU Chenglin LI Xing YAN Xiaoyuan YAN State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008(China) University of Chinese academy of Sciences Beijing 100049(China) College of Environmental Science and Engineering Yangzhou UniversityYangzhou 225127(China)

Partial substitution of synthetic nitrogen(N)with organic fertilizers(PSOF)is of great significance in improving soil ecosystem functions in systems that have deteriorated due to the excessive application of chemical N ***,existing studies typically focus on individual soil functions,neglecting the fact that multiple functions occur *** remains unclear how PSOF influences multiple soil functions and whether these impacts are related to soil microbial ***,we examined the impacts of partial substitutions(25%–50%)of chemical N fertilizer with organic form(pig manure or municipal sludge)in a vegetable field on soil multifunctionality,by measuring a range of soil functions involving primary production(vegetable yield and quality),nutrient cycling(soil enzyme activities,ammonia volatilization,N leaching,and N runoff),and climate regulation(soil organic carbon sequestration and nitrous oxide emission).We observed that PSOF improved soil multifunctionality,with a 50%substitution of chemical N fertilizer with pig manure being the best management practice;the result was strongly related to the diversities and network complexities of bacteria and *** forest analysis further revealed that soil multifunctionality was best explained by the bacterial-fungal network complexity,followed by available phosphorus level and bacterial *** PSOF also shifted the composition of bacterial and fungal communities,with increased relative abundances of dominant bacteria phyla,such as Bacteroidetes,Gemmatimonadetes,and Myxococcota,and fungal phyla,such as Basidiomycota and *** observed increases in soil multifunctionality were consistent with significant increases in the relative abundances of keystone taxa such as Blastocladiomycota,Chaetomiaceae,and ***,these findings indicate that PSOF can enhance interactions within and among microbial communities and that such practices have the potential to impro

关键词： bacterial and fungal diversity biogeochemical cycling climate regulation enzyme activity microbial network primary production soil function

Resonator integrated optic gyro based on multilevel laser frequency lock-in technique

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Chinese Optics Letters 2018年第4期16卷 16-19页

作者： Ziwen Pan Chengfei Zhang Chengfeng Xie yongqiu Zheng Haotian Li Sun tang Jun Liu Key Laboratory of Instrumentation Science and Dynamic Measurement of Ministry of Education North University of China Taiyuan 030051 China

The resonator integrated optic gyros（RIOGs） based on the Sagnac effect have gained extensive attention in navigation and guidance systems due to their predominant advantages： high theoretical accuracy and simple integration. However, the problems of losing lock and low lock-in accuracy are the bottlenecks, which restrict the development of digital RIOGs. Therefore, a multilevel laser frequency lock-in technique has been proposed in this Letter to address these problems. The experimental results show that lock-in accuracy can be improved one order higher and without losing lock in a variable temperature environment. Then, a digital miniaturized RIOG prototype（18 cm × 18 cm × 20 cm） has been produced, and long-term（1 h） bias stability of 26.6 deg/h is successfully demonstrated.

关键词： Resonator integrated optic gyro based on multilevel laser frequency lock-in technique FSR WRR

Identifying Qingkailing(清开灵)ingredients-dependent mesenchymal-epithelial transition factor-axiation“π”structuring module with angiogenesis and neurogenesis effects

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Journal of Traditional Chinese Medicine 2024年第1期44卷 35-43页

作者： CHENG Kunming YUAN Jianan LIU Jun ZHANG Shengpeng XU Qixiang XIE Yong ZHAO Jingfeng ZHANG Xiaoxu tang Xudong ZHENG yongqiu WANG Zhong Provincial Engineering Laboratory for Screening and Re-evaluation of Active Compounds of Herbal Medicines in Southern Anhui Teaching and Research Section of Traditional Chinese MedicineSchool of PharmacyWannan Medical CollegeWuhu 241000China Institute of Basic Research in Clinical Medicine China Academy of Chinese Medical SciencesBeijing 100700China Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine Ministry of EducationDepartment of Medicinal Plant DevelopmentChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100193China Department of Gastroenterology Xiyuan HospitalChina Academy of Chinese Medical SciencesBeijing 100091China

OBJECTIVE:To explore the functional role of the drugdependent mesenchymal-epithelial transition(Met)-axiation"π"structural module of neurogenesis after processing by three components of Qingkailing injection in neurogenesis and angiogenesis in cerebral ***:We used a Glutathione S-transferase(GST)-pull down assay,isothermal titration calorimetry assay,and other related methods to identify the relationships among Met,inositol polyphosphate phosphatase like 1(Inppl1),and death associated protein kinase 3(Dapk3)in this allosteric *** biological effects of the modules of neurons generation composed of Met,Inppl1,and Dapk3 were measured through Western blot,apoptosis analysis,and double immunofluorescence ***:The GST-pull down assay revealed that proline-serine-threonine rich domain of Met binds to the Src homology domain of Inppl1 to form a protein-protein complex;Dapk3 with a C-terminal domain interacts weakly with the protein kinase C domain of Met in the intracellular ***,we obtained a“π”structuring module considered a neural regeneration *** biological effects of angiogenesis and neurogenesis modules composed of Met,Inppl1,and Dapk3 were also ***:The study suggested that understanding the functional modules that contribute to pharmaceutics might provide novel signatures that can be used as endpoints to define disease processes under stroke or cerebral ischemia conditions.

关键词： brain ischemia stroke neurogenesis angiogenesis modular pharmacology Met-axiation allosteric module

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谐振式光学陀螺输出精度的提高设计

压电与声光 2018年第2期40卷 235-239页

作者：李鑫郑永秋唐军刘俊中北大学电子测试技术国家重点实验室山西太原030051 测试技术及仪器国家级实验教学示范中心(中北大学) 山西太原030051

介绍了谐振式光学陀螺的系统构建及工作原理。针对谐振式光学陀螺系统中引入白噪声而影响其转动输出精度问题,该文从理论上对该系统中各信号间的互相关性原理进行了分析,并提出了一种采用数字低通滤波器对信号进行噪声滤除的处理方式。... 详细信息

介绍了谐振式光学陀螺的系统构建及工作原理。针对谐振式光学陀螺系统中引入白噪声而影响其转动输出精度问题,该文从理论上对该系统中各信号间的互相关性原理进行了分析,并提出了一种采用数字低通滤波器对信号进行噪声滤除的处理方式。通过对该陀螺系统进行转动测试和零偏稳定性测试。研究发现,其转动输出信号幅度范围用数字量表示由原来的300减小到60。利用Allan方差对零偏稳定性测试数据进行拟合计算,得出其输出精度由265.29(°)/h提高到62.96(°)/h,结果表明,该系统输出精度得到有效提高。

关键词：谐振式光学陀螺白噪声低通滤波器零偏稳定性 Allan方差

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谐振式光学陀螺的激光频率锁定技术设计

光通信技术 2018年第3期42卷 22-24页

作者：李鑫郑永秋唐军刘俊张扬中北大学电子测试技术国家重点实验室太原030051 测试技术及仪器国家级实验教学示范中心(中北大学) 太原030051

对谐振式光学陀螺系统构建及原理进行了分析设计,并对该陀螺在国内外的研究现状进行了相应的介绍。同时针对谐振式光学陀螺的激光频率锁定这一问题,提出了叠加式的数字锁频算法,与比例积分(PI)控制器构成的锁频回路相比,能够提高频率锁... 详细信息

对谐振式光学陀螺系统构建及原理进行了分析设计,并对该陀螺在国内外的研究现状进行了相应的介绍。同时针对谐振式光学陀螺的激光频率锁定这一问题,提出了叠加式的数字锁频算法,与比例积分(PI)控制器构成的锁频回路相比,能够提高频率锁定反馈响应,减小系统功率消耗。对该陀螺系统进行转动测试,并利用Allan方差进行一小时的零偏稳定性拟合计算,证明了设计的数字锁频算法能够满足谐振式光学陀螺系统测试需求,锁频精度达到了预期目标。

关键词：谐振式光学陀螺激光频率锁定叠加式数字锁频 Allan方差

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利用光波导谐振腔替代长光纤的光电振荡器

微纳电子技术 2017年第4期54卷 249-253,272页

作者：陈猛钱坤唐军刘文耀郑永秋中北大学仪器科学与动态测试教育部重点实验室太原030051

提出了一种利用光学谐振腔代替长光纤作为光电振荡器系统延时器件,以提高微波品质因子的方案。此方案中,光子可以在谐振腔中多次循环传播,2英寸(1英寸=2.54 cm)的平面光波导谐振腔,最高可以使系统产生1 923.1 ns的延时、输出频谱宽度为0... 详细信息

提出了一种利用光学谐振腔代替长光纤作为光电振荡器系统延时器件,以提高微波品质因子的方案。此方案中,光子可以在谐振腔中多次循环传播,2英寸(1英寸=2.54 cm)的平面光波导谐振腔,最高可以使系统产生1 923.1 ns的延时、输出频谱宽度为0.52 MHz的微波信号,微波的品质因子达12 077.1,光学谐振腔的延时效果等效于388.7 m长光纤。通过在系统中加入光波导谐振腔,产生了1.2 GHz的微波信号,中心频率1.2 GHz处其相位噪声为-93 dBc/Hz@10 kHz。此方案的优势在于:使用光学谐振腔代替长光纤作为光电振荡器的延时器件时,可以减小长光纤容易受外界环境温度和应力等的影响,降低微波信号的相位噪声。

关键词：光电振荡器光学谐振腔延时效应相位噪声微波品质因子