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LiF晶体F2色心可调谐激光器

中国激光 1983年第5期 283-285页

作者：赵家驹周衍谢绳武林嘉陵上海交通大学应用物理系

本文报导以0.53微米激光作为泵浦的LiF:F2色心可调谐激光器。实验所用的晶体的F2心浓度约为6.2×1017厘米-3,高于已有报导值。0.69微米附近可调谐激光输出线宽为1.5埃,能量转换效率为2.9％。晶体在连续运转6千个脉冲后,才开始出现漂白... 详细信息

本文报导以0.53微米激光作为泵浦的LiF:F2色心可调谐激光器。实验所用的晶体的F2心浓度约为6.2×1017厘米-3,高于已有报导值。0.69微米附近可调谐激光输出线宽为1.5埃,能量转换效率为2.9％。晶体在连续运转6千个脉冲后,才开始出现漂白效应。

关键词：色心晶体可调谐激光器可调激光器 F2 激光输出 LiF

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部分杧果品种果实若干品质特征的比较研究

热带作物学报 2009年第12期30卷 1725-1730页

作者：赵家桔李焕苓张新春黄国弟高兆银王家保中国热带农业科学院环境与植物保护研究所海南儋州571737 海南大学农学院海南儋州571737 广西亚热带作物研究所南宁530001

研究57个杧果品种果实的7项品质特征,结果表明:不同杧果品种果实的可溶性糖、可溶性固形物、可滴定酸含量分别为9.00%～19.88%、11.30%～20.88%、0.02%～0.89%,糖酸比、固酸比分别为16.47～878.86、19.25～882.78,类胡萝卜素含量为6.38... 详细信息

研究57个杧果品种果实的7项品质特征,结果表明:不同杧果品种果实的可溶性糖、可溶性固形物、可滴定酸含量分别为9.00%～19.88%、11.30%～20.88%、0.02%～0.89%,糖酸比、固酸比分别为16.47～878.86、19.25～882.78,类胡萝卜素含量为6.38～48.60μg/gFW,贮藏期为6～17d,相对应各项指标的平均值分别为13.51%、14.44%、0.26%、127.36、127.05、23.01μg/gFW、10.17d,不同品种果实的品质存在显著差异。灰色关联度分析表明,57个杧果品种的综合品质以留香杧最佳。完熟时绿色果皮品种的果实可溶性糖含量显著高于红色果皮品种,且糖酸比值和固酸比值显著高于红色与黄色果皮品种。多胚品种的可溶性糖含量显著高于单胚品种。相关分析表明,芒果可溶性糖含量与可溶性固形物含量及类胡萝卜素含量呈极显著或显著正相关,可滴定酸含量与糖酸比、固酸比呈极显著负相关。

关键词：杧果品种果实品质

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新能源制氢系统及电源研究现状

电工技术 2024年第S01期 453-456页

作者：李阳赵嘉驹史铁孔卫江余会明中船(邯郸)派瑞氢能科技有限公司河北邯郸056300 中国船舶集团有限公司第七一八研究所河北邯郸056300

整体介绍了风、光新能源制氢系统的组成,及电解槽电源的现状和研究方向。首先介绍了在风电场景中对整流电源的要求,此场合中主流的电源拓扑结构,之后分析多脉波整流器以及全控性IGBT整流器的性能特点。在光伏发电中,介绍主流光伏制氢系... 详细信息

整体介绍了风、光新能源制氢系统的组成,及电解槽电源的现状和研究方向。首先介绍了在风电场景中对整流电源的要求,此场合中主流的电源拓扑结构,之后分析多脉波整流器以及全控性IGBT整流器的性能特点。在光伏发电中,介绍主流光伏制氢系统,电源拓扑、系统特点。之后介绍风光发电制氢系统,通过构建不同的预测模型,预测下一周期的风光发电数据,从而调动电解槽的负荷,实时消耗发电功率,维持系统的安全稳定运行,还介绍了新能源制氢系统储能承担的作用,及合理计算系统成本和储能成本问题。

关键词：电解制氢整流新能源制氢离网电力电子变换器

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2个杧果品种果实品质及其构成研究

热带作物学报 2010年第2期31卷 182-186页

作者：赵家桔张新春李焕苓黄国弟高兆银王家保中国热带农业科学院环境与植物保护研究所海南儋州571737 海南大学农学院海南儋州571737 广西亚热带作物研究所南宁530001

以红杧六号和桂热82号两个杧果品种为试材,研究其果实品质特征及其构成,结果表明:红杧六号果实单果重、可食率、类胡萝卜素含量、可滴定酸含量均高于桂热82号,而可溶性糖含量和糖酸比低于桂热82号。高效液相色谱(HPLC)分析表明,芒果果... 详细信息

以红杧六号和桂热82号两个杧果品种为试材,研究其果实品质特征及其构成,结果表明:红杧六号果实单果重、可食率、类胡萝卜素含量、可滴定酸含量均高于桂热82号,而可溶性糖含量和糖酸比低于桂热82号。高效液相色谱(HPLC)分析表明,芒果果实共含3种糖、11种有机酸和4种类胡萝卜素,即果糖、葡萄糖和蔗糖;草酸、酒石酸、奎尼酸、苹果酸、抗坏血酸、乳酸、α-酮戊二酸、柠檬酸、富马酸、琥珀酸和没食子酸;堇菜黄素、β-胡萝卜素、叶黄素和番茄红素。其中,蔗糖、苹果酸和堇菜黄素分别为芒果的主要糖、有机酸和类胡萝卜素种类。两个品种果实不同糖、有机酸和类胡萝卜素组分的含量多数存在显著差异。综合而言,桂热82号的果实品质和风味较好。

关键词：芒果果实品质品质构成

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Impacts of Defoliation on Morphological Characteristics and Non-Structural Carbohydrates of Populus talassica × Populus euphratica Seedlings

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Phyton-International Journal of Experimental Botany 2024年第7期93卷 1689-1703页

作者： Mengxu Su Zhanjiang Han Zhen zhao Xiaofeng Wu jiaju Wu College of Life Science and Technology Tarim UniversityXinjiang Production and Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim BasinAlar843300China Agricultural Science Research Institute of the First Division Xinjiang Production and Construction CorpsAlar843300China

Leaves are important‘source’organs that synthesize organic matter,providing carbon sources for plant ***,we used Populus talassica×Populus euphratica,the dominant species in ecological and timber forests,to simulate carbon limitation through artiﬁcial 25%,50%,and 75%defoliation treatments and explore the effects on root,stem,and leaf morphology,biomass accumulation,and carbon allocation *** the 60th d after treat-ment,under 25%defoliation treatment,the plant height,speciﬁc leaf weight,root surface area and volume,and concentrations of non-structural carbohydrates in stem and root were signiﬁcantly increased by 9.13%,20.00%,16.60%,31.95%,5.12%,and 9.34%,respectively,relative to the *** was no signiﬁcant change in the growth indicators under 50%defoliation treatment,but the concentrations of non-structural carbohydrates in the leaf and stem signiﬁcantly decreased,showing mostly a negative correlation between *** opposite was observed in the *** 75%defoliation treatment,the plant height,ground diameter,leaf number,single leaf area,root,stem,and total biomass were signiﬁcantly reduced by 14.15%,10.24%,14.86%,11.31%,11.56%,21.87%,and 16.82%,respectively,relative to the *** concentrations of non-structural carbohydrates in various organs were signiﬁcantly reduced,particularly in the consumption of the starch concentrations in the stem and *** results indicated that carbon allocation strategies can be adjusted to increase the con-centration of non-structural carbohydrates in root and meet plant growth needs under 25%and 50%***,75%defoliation signiﬁcantly limited the distribution of non-structural carbohydrates to roots and stems,reduced carbon storage,and thus inhibited plant ***-induced carbon limitation altered the carbon allocation pattern of ***×***,and the relationship between carbon reserves in roots and tree growth recovery after defoliation was *** study

关键词： Populus talassica×Populus euphratica defoliation carbon limitation carbon allocation non-structural carbohydrates

3个品种香蕉果实中糖酸组分及含量的比较分析

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热带作物学报 2011年第8期32卷 1453-1456页

作者：周兆禧赵家桔马蔚红臧小平何应对李敬阳蔡胜忠中国热带农业科学院海口实验站/香蕉研究所海南海口570102 海南大学应用科技学院海南儋州571737

用高效液相色谱(HPLC)法测定皇帝蕉(贡蕉)、巴西蕉和粉蕉成熟果实中糖酸组分及含量。结果表明,成熟果实中均含有蔗糖、葡萄糖和果糖,并以积累蔗糖为主,皇帝蕉(贡蕉)、巴西蕉和粉蕉果实中蔗糖含量分别占总糖的59.76%、66.18%、68.69%,总... 详细信息

用高效液相色谱(HPLC)法测定皇帝蕉(贡蕉)、巴西蕉和粉蕉成熟果实中糖酸组分及含量。结果表明,成熟果实中均含有蔗糖、葡萄糖和果糖,并以积累蔗糖为主,皇帝蕉(贡蕉)、巴西蕉和粉蕉果实中蔗糖含量分别占总糖的59.76%、66.18%、68.69%,总糖含量大小表现为,皇帝蕉>巴西蕉>粉蕉;均含有11种有机酸,以苹果酸为主,含量分别占总酸的51.71%、47.30%、46.68%,同时含有大量的柠檬酸,分别占总酸的18.13%、19.62%和19.96%,并富含多种有机酸,总酸含量大小是粉蕉>巴西蕉>皇帝蕉。

关键词：高效液相色谱香蕉成熟果实糖酸组分及含量

Enhanced angiogenesis by the hyaluronic acid hydrogels immobilized with a VEGF mimetic peptide in a traumatic brain injury model in rats

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Regenerative Biomaterials 2019年第6期6卷 325-334页

作者： jiaju Lu Fengyi Guan Fuzhai Cui Xiaodan Sun Lingyun zhao Ying Wang Xiumei Wang State Key Laboratory of New Ceramics and Fine Processing Key Laboratory of Advanced Materials of Ministry of EducationSchool of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Beijing Center of Neutral Regeneration and Repair Key Laboratory for Neurodegenerative Disease of the Ministry of EducationCapital Medical UniversityBeijing 100069China

Angiogenesis plays an important role in brain injury repair,which contributes to the reconstruction of regenerative neurovascular niche for promoting axonal regeneration in the lesion *** a major component of developing brain extracellular matrix,hyaluronic acid(HA)has attracted more attention as a supporting matrix for brain *** the present study,HA-KLT hydrogel was developed via modifying HA with a VEGF mimetic peptide of KLT(KLTWQELYQLKYKGI).The characterization of the hydrogel shows that it could provide a porous,three-dimensional scaffold structure,which has a large specific surface area available for cell adhesion and *** with the unmodified HA hydrogel,the HA-KLT hydrogel could effectively promote the attachment,spreading and proliferation of endothelial cells in ***,the pro-angiogenic ability of hydrogels in vivo was evaluated by implanting them into the lesion cavities in the injured rat *** results showed that the hydrogels could form a permissive interface with the host tissues at 4 weeks after ***,they could efficiently inhibit the formation of glial scars at the injured *** HA-KLT hydrogel could significantly increase the expression of endoglin/CD105 and promote the formation of blood vessels,suggesting that HA-KLT hydrogel promoted angiogenesis in ***,the HA-KLT hydrogel has the potential to repair brain defects by promoting angiogenesis and inhibiting the formation of glial-derived scar tissue.

关键词： traumatic brain injury hyaluronic acid angiogenesis VEGF mimetic peptide

全膝关节置换术后患者症状群特征潜在类别分析及不同类别间生活质量比较

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华西医学 2024年第10期39卷 1592-1598页

作者：张梦珂魏铭慧李佳雪张远赵家菊侯国梁史凌云新疆医科大学护理学院乌鲁木齐830017 新疆医科大学第一附属医院护理部乌鲁木齐830054 新疆区域人群疾病与健康照护研究中心乌鲁木齐830000

目的探讨膝骨关节炎(knee osteoarthritis,KOA)患者行全膝关节置换术(total knee arthroplasty,TKA)后症状群特征的潜在类别,并比较各类别生活质量的差异。方法采用方便抽样法选择2023年11月—2024年3月在新疆乌鲁木齐市4所三级甲等医... 详细信息

目的探讨膝骨关节炎(knee osteoarthritis,KOA)患者行全膝关节置换术(total knee arthroplasty,TKA)后症状群特征的潜在类别,并比较各类别生活质量的差异。方法采用方便抽样法选择2023年11月—2024年3月在新疆乌鲁木齐市4所三级甲等医院关节外科因KOA行TKA的患者为研究对象,收集患者术后疼痛、肿胀、焦虑、抑郁及睡眠障碍的症状,使用Mplus 8.3软件进行潜在类别分析,采用SPSS 26.0软件分析其影响因素以及各类别生活质量的差异。结果共发放问卷380份,回收有效问卷362份,问卷有效率为95.3%。362例患者中,342例(94.5%)具有症状群。342例患者年龄47~85岁,平均(65.25±7.03)岁;男83例(24.3%),女259例(75.7%)。患者按术后症状群特征被分为3个潜在类别:高症状组(16.1%)、低症状组(51.8%)、高肿胀组(32.2%)。相对于低症状组,本次为第1次关节手术是高症状组的危险因素[比值比(odds ratio,OR)=2.732,95%置信区间(confidence interval,CI)(1.216,6.139),P=0.015],而体质量指数24.0~27.9 kg/m^(2)是高症状组的保护因素[OR=0.362,95%CI(0.156,0.840),P=0.018];体质量指数<24.0 kg/m^(2)是高肿胀组的独立危险因素[OR=2.769,95%CI(1.321,5.803),P=0.007]。3个潜在类别患者的生活质量比较,高症状组的生活质量得分最低(P<0.05)。结论KOA患者TKA后症状群可分为3种潜在类别,且不同类别间生活质量表现不同,应根据患者的症状特征提供精准化症状管理策略,提升患者生活质量。

关键词：膝关节置换术症状群潜在类别分析生活质量

Hypoxia activates the hypoxia-inducible factor-1α/vascular endothelial growth factor pathway in a prostatic stromal cell line:A mechanism for the pathogenesis of benign prostatic hyperplasia

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Current Urology 2024年第3期18卷 185-193页

作者： Tao Zhang Changlin Mao Yao Chang jiaju Lyu Delong zhao Sentai Ding Department of Urology Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinanChina Department of Urology Mindong Hospital Affiliated to Fujian Medical UniversityFuanChina

Background The development of benign prostatic hyperplasia(BPH)is closely related to hypoxia in the prostatic stroma,and the hypoxia-inducible factor-1α/vascular endothelial growth factor(HIF-1α/VEGF)pathway has been shown to significantly activate in response to *** underlying mechanism for activation of this pathway in the pathogenesis of BPH remains *** and methods We constructed HIF-1αoverexpression and knockdown BPH stromal(WPMY-1)and epithelial(BPH-1)cell lines,which were cultured under different oxygen conditions(hypoxia,normoxia,and hypoxia+HIF-1αinhibitor).Quantitative real-time polymerase chain reaction(qPCR)and Western blotting were applied to detect the expression of the HIF-1α/VEGF *** proliferation and apoptosis were analyzed by Cell Counting Kit-8 and flow *** used the miRWalk 2.0 database and Western blotting to predict the potential miRNA that selectively targets the HIF-1α/VEGF pathway,and verified the prediction by qPCR and dual-luciferase *** In a BPH stromal cell line(WPMY-1),the expression of VEGF was in accordance with HIF-1αlevels,elevated in the overexpression cells and decreased in the knockdown ***-induced HIF-1αoverexpression,which could be reversed by a HIF-1α***,the HIF-1αinhibitor significantly depressed cellular proliferation and promoted apoptosis in hypoxic conditions,assessed by Cell Counting Kit-8 and flow ***,in the BPH epithelial cell line(BPH-1),the expression level of HIF-1αdid not influence the expression of ***,a potential miRNA,miR-17-5p,regulating the HIF-1α/VEGF pathway was predicted from the miRWalk 2.0 database and Western blotting,and verified by qPCR and dual-luciferase *** In hypoxia,activation of the HIF-1α/VEGF pathway plays a crucial role in regulating cell proliferation in a BPH stromal cell *** by miR-17-5p may be the potential mechanism for the activation of this *** of thi

关键词： Benign prostatic hyperplasia Hypoxia-inducible factor-1α Vascular endothelial growth factor Pathogenesis miR-17-5p