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Designing solid-state interfaces on lithium-metal anodes: a review
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作者 Chen-Zi Zhao Hui Duan +4 位作者 Jia-Qi Huang Juan Zhang Qiang Zhang Yu-Guo Guo Li-Jun Wan 《中国科学:化学英文版》 SCIE EI CAS CSCD 2019年第10期1286-1299,共14页
Li-metal anodes are one of the most promising energy storage systems that can considerably exceed the current technology to meet the ever-increasing demand of power applications. The apparent cycling performances and ... Li-metal anodes are one of the most promising energy storage systems that can considerably exceed the current technology to meet the ever-increasing demand of power applications. The apparent cycling performances and dendrite challenges of Li-metal anodes are highly influenced by the interface layer on the Li-metal anode because the intrinsic high reactivity of metallic Li results in an inevitable solid-state interface layer between the Li-metal and electrolytes. In this review, we summarize the recent progress on the interfacial chemistry regarding the interactions between electrolytes and ion migration through dynamic interfaces. The critical factors that affect the interface formation for constructing a stable interface with a low resistance are reviewed. Moreover, we review emerging strategies for rationally designing multiple-structured solid-state electrolytes and their interfaces, including the interfacial properties within hybrid electrolytes and the solid electrolyte/electrode interface. Finally, we present scientific issues and perspectives associated with Li-metal anode interfaces toward a practical Li-metal battery. 展开更多
关键词 lithium-metal ANODE SOLID-STATE ELECTROLYTE energy chemistry RECHARGEABLE lithium-metal batteries solid electrolyte/electrode interface
Self-assembly synthesis of solid polymer electrolyte with carbonate terminated poly (ethylene glycol) matrix and its application for solid state lithium battery 预览
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作者 Bing Yuan Guangmei Luo +3 位作者 Jing Liang Fangyi Cheng Wangqing Zhang Jun Chen 《能源化学:英文版》 SCIE EI CAS CSCD 2019年第11期55-59,共5页
A facile one-pot synthesis of solid polymer electrolytes(SPEs), composed of carbonate terminated poly(ethylene glycol)(CH3O-PEG-IC), poly(ethylene glycol)-block-polystyrene(PEG-b-PS) block copolymer nanoparticles cont... A facile one-pot synthesis of solid polymer electrolytes(SPEs), composed of carbonate terminated poly(ethylene glycol)(CH3O-PEG-IC), poly(ethylene glycol)-block-polystyrene(PEG-b-PS) block copolymer nanoparticles containing a conductive PEG corona, fumed SiO2 and Li TFSI salt via polymerization-induced self-assembly is proposed. This method to prepare SPEs has the advantages of one-pot convenient synthesis, avoiding use of organic solvent and conveniently adding inorganic additives. CH3O-PEG-IC combines advantages of PEG and polycarbonate, the in situ synthesized PEG-b-PS nanoparticles containing a rigid polystyrene(PS) core and a PEG corona guarantee continuous lithium ion transport in the synthesized SPEs, and the fumed SiO2 optimizes the interfacial properties and improves the electrochemical stability, all of which afford SPEs a well considerable room temperature ionic conductivity of 1.73 × 10^-4S/cm, high lithium transference number of 0.53, and wide electrochemical stability window of 5.5 V(vs. Li^+/Li). By employing these SPEs, the assembled solid state cells of Li FePO4 |SPEs|Li exhibit considerable cell performance. 展开更多
关键词 Solid polymer electrolyte Polymerization-induced self-assembly Solid-state lithium battery
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输尿管软镜与微通道经皮肾镜治疗2~4cm肾结石的临床疗效及对肾指标的影响
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作者 李雪锋 马晋鄂 《国际泌尿系统杂志》 2019年第4期600-604,共5页
目的评估分期输尿管软镜钬激光碎石术(StagedFURL)与微通道经皮肾镜碎石术(Mini-PCNL)治疗2~4cm肾结石的临床疗效及对肾指标的影响.方法选择2017年1月至2018年2月本院收治的肾结石患者125例的临床资料进行回顾性分析,根据治疗方式的不... 目的评估分期输尿管软镜钬激光碎石术(StagedFURL)与微通道经皮肾镜碎石术(Mini-PCNL)治疗2~4cm肾结石的临床疗效及对肾指标的影响.方法选择2017年1月至2018年2月本院收治的肾结石患者125例的临床资料进行回顾性分析,根据治疗方式的不同将其分为StagedFURL组68例(给予StagedFURL治疗)与Mini-PCNL组57例(给予Mini-PCNL治疗),详细记录两组患者术中及术后各临床指标、肾功能及肾血流指标、术后并发症发生及结石清除情况并进行比较.结果StagedFURL组患者手术时间、总治疗时间、住院费用均明显多于Mini-PCNL组,StagedFURL组患者术中出血量、住院时间、血红蛋白减少均明显少于Mini-PCNL组,差异有统计学意义(P<0.05);两组治疗成功率均为100.00%,差异无统计学意义(P>0.05).治疗后StagedFURL组患者RI值明显低于Mini-PCNL组,S/D值、Vmax均明显高于Mini-PCNL组,差异有统计学意义(P<0.05);治疗后StagedFURL组患者尿素氮、血肌酐水平均略高于Mini-PCNL组,但差异无统计学意义(P>0.05).StagedFURL组术后并发症发生率7.35%(5/68)明显低于Mini-PCNL组17.54%(10/57),差异有统计学意义(P<0.05);StagedFURL组综合结石清除率88.24%(60/68)略高于Mini-PCNL组84.21%(48/57),差异无统计学意义(P>0.05).结论StagedFURL治疗2~4cm肾结石的疗效及安全性良好,有利于患者术后肾血流恢复,且术后并发症发生率较Mini-PCNL组更低,值得推广应用. 展开更多
关键词 肾结石 激光 固体 碎石术 肾造口术 经皮 输尿管镜检查
2 940 nm点阵激光联合局部封闭治疗增生性瘢痕疗效评价 预览
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作者 邱实 宛利民 《安徽医药》 CAS 2019年第4期795-797,共3页
目的观察2940nm点阵激光联合倍他米松局部封闭治疗增生性瘢痕的临床疗效。方法对2015年1月至2016年12月期间,在北京市顺义区医院皮肤科门诊就诊的43例增生性瘢痕病人,先使用复方倍他米松注射液(得宝松)适量药液缓慢注射入皮损内,间隔治... 目的观察2940nm点阵激光联合倍他米松局部封闭治疗增生性瘢痕的临床疗效。方法对2015年1月至2016年12月期间,在北京市顺义区医院皮肤科门诊就诊的43例增生性瘢痕病人,先使用复方倍他米松注射液(得宝松)适量药液缓慢注射入皮损内,间隔治疗时间4周,根据皮损增生程度注射1~4次,最后一次注射完毕间隔1个月后,采用Pixel2940nm点阵激光进行治疗。治疗结束后随访3个月。同时对病人进行满意度调查。结果43例病人经1~5次治疗后,有效率分别为48.84%、60.47%、82.50%、91.43%、96.30%,有效率随治疗次数的增加显著增加,病人满意率为93.02%。不良反应少。结论2940nm点阵激光联合局部封闭治疗增生性瘢痕,疗效确切,值得推广应用。 展开更多
关键词 瘢痕 肥大性 激光疗法 封闭疗法 激光 固体 倍他米松
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Dielectric relaxation and magneto-electric characteristics of lead-free double perovskite: Sm2NiMnO6
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作者 Rutuparna DAS R.N.P.CHOUDHARY 《先进陶瓷(英文版)》 CSCD 2019年第2期174-185,共12页
The polycrystalline sample of a double perovskite, Sm2NiMnO6 was synthesized by a solid-state reaction route. From the X-ray structural study, it is found that the structure of the material is monoclinic with lattice ... The polycrystalline sample of a double perovskite, Sm2NiMnO6 was synthesized by a solid-state reaction route. From the X-ray structural study, it is found that the structure of the material is monoclinic with lattice parameters: a = 4.1750(63) ?, b = 7.6113(63) ?, c = 5.9896(63) ?, and β = 112.70°. These parameters are very close to and consistent with those of such type of materials. The dielectric, impedance, AC conductivity, and electrical modulus properties of the sample were studied in the temperature range of 25–300℃ and the frequency range of 1 kHz–1 MHz. Typical relaxor behavior observed in the dielectric studies was confirmed by Vogel–Fulcher fitting. From the Nyquist plots, the temperature dependent contribution of grain and grain boundary effect was confirmed. The non-Debye type of relaxation was found using the complex impedance spectroscopy. The magnetic study revealed that the sample had paramagnetic behavior at room temperature. Magneto-electric(ME) coefficient was obtained by changing DC bias magnetic field. This type of lead-free relaxor ferroelectric compound may be useful for high-temperature applications. 展开更多
关键词 SOLID-STATE reaction X-ray diffraction(XRD) dielectric RELAXATION magneto-electric(ME) coupling
输尿管硬镜联合不同种类封堵器原位钬激光碎石治疗输尿管上段结石的疗效比较
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作者 尹冰德 巫嘉文 《国际泌尿系统杂志》 2019年第3期412-415,共4页
目的探讨4种结石封堵器在输尿管硬镜下治疗输尿管上段结石中原位碎石的疗效。方法回顾性分析2017年7月至2018年3月经输尿管硬镜钬激光碎石术中联合应用4种不同封堵器治疗131例输尿管上段结石患者的临床资料,其中使用CookN-trap38例、Coo... 目的探讨4种结石封堵器在输尿管硬镜下治疗输尿管上段结石中原位碎石的疗效。方法回顾性分析2017年7月至2018年3月经输尿管硬镜钬激光碎石术中联合应用4种不同封堵器治疗131例输尿管上段结石患者的临床资料,其中使用CookN-trap38例、CookN-gage取石网篮15例、瑞邦国产StoneCone42例和英诺伟管路封堵器(IVX-SC10)36例。所有患者结石均位于第4腰椎横突以上,合并有不同程度肾积水。统计四组患者手术时间、结石清除率、术后并发症等数据并进行分析。结果手术时间:CookN-trap(10.0~16.5)min、CookN-gage取石网篮(8.0~12.5)min、瑞邦国产StoneCone(15.5~30.5)min和英诺伟封堵器(12.5~30.0)min。5例结石退入肾盂肾盏,其中3例停留于肾盂,继续输尿管镜上行至肾盂予钬激光成功碎石,术后复查未见结石残留,2例结石入肾盏术后予体外冲击波碎石并排石成功,一次性结石取净率为96.1%(126/131)。术中均未出现输尿管穿孔或输尿管黏膜撕脱。术后3例患者出现发热,经抗生素治疗后好转。结论输尿管硬镜联合封堵器及钬激光碎石原位处理输尿管上段结石疗效确切,安全可行,结石清除率高,术后并发症少,显著减少因结石逃逸改行输尿软镜及经皮肾镜手术。 展开更多
关键词 输尿管结石 输尿管镜检查 激光 固体
逆行软性输尿管镜下钬激光碎石治疗小儿肾结石的效果分析
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作者 阿不力孜·司马义 齐飞波 《国际泌尿系统杂志》 2019年第3期416-418,共3页
目的探讨逆行软性输尿管镜下钬激光碎石术(RIRS)治疗小儿肾结石临床疗效、适应证和安全性。方法回顾性分析2015年6月至2017年6月采用RIRS治疗的小儿肾结石患者16例的临床资料。结果所有患者术前均留置双J管4周,1例术中无法置入输尿管软... 目的探讨逆行软性输尿管镜下钬激光碎石术(RIRS)治疗小儿肾结石临床疗效、适应证和安全性。方法回顾性分析2015年6月至2017年6月采用RIRS治疗的小儿肾结石患者16例的临床资料。结果所有患者术前均留置双J管4周,1例术中无法置入输尿管软镜鞘改行超微通道经皮肾镜取石术,15例均Ⅰ期碎石成功,手术时间:20~80(38.57±22.86)min,术中灌注水量:300~860(502.86±239.56)mL,术后1个月净石率为100%,术后2例患者发热>38℃,经常规处理后恢复正常,术后住院时间为1~3(1.57±0.78)d。无输尿管穿孔、输尿管黏膜脱套、尿源性败血症等并发症。结论逆行软性输尿管镜下钬激光碎石术治疗小儿肾结石具有创伤小、安全、有效、住院时间短、术后净石率高等特点,适用于结石<2.0cm的小儿肾结石。但是因术前置双J管及术后拔双J管在麻醉下进行,故需要更好地把握手术适应证,需要做好充分的术前准备。 展开更多
关键词 肾结石 儿童 输尿管镜检查 激光 固体
超微经皮肾镜与输尿管软镜钬激光碎石治疗1~2cm有症状肾下盏结石的疗效分析
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作者 陶荣镇 唐庆来 +1 位作者 柳发德 吕建林 《国际泌尿系统杂志》 2019年第4期604-608,共5页
目的分析比较超微经皮肾镜碎石取石术(SMP)与输尿管软镜碎石取石术(FURL)处理1~2cm有症状肾下盏结石的疗效.方法回顾性分析2016年5月至2018年3月在本中心进行SMP及FURL治疗的1~2cm有症状肾下盏结石患者203例的临床资料.根据手术方式不同... 目的分析比较超微经皮肾镜碎石取石术(SMP)与输尿管软镜碎石取石术(FURL)处理1~2cm有症状肾下盏结石的疗效.方法回顾性分析2016年5月至2018年3月在本中心进行SMP及FURL治疗的1~2cm有症状肾下盏结石患者203例的临床资料.根据手术方式不同,分为SMP组96例,FURL组107例.将术后结果进行比较.结果SMP组术前双J管置入史明显低于FURL组(P=0.012),SMP组结石CT值高于FURL组,差异有统计学意义(P=0.031).SMP组患者术后血红蛋白降低的平均水平为12.3g,显著高于FURL组的10.2g(P=0.018).而与FURL组相比,SMP组术后第一天结石清除率(83.3%vs.68.2%,P=0.013)及30d的结石清除率(92.7%vs.82.2%,P=0.026)均明显高于FURL组,差异有统计学意义.结论SMP治疗1~2cm有症状肾下盏结石安全有效,出血、感染等并发症发生率低,术后舒适度高,住院时间短,术后结石清除率高,能作为传统FURL的互补手术方式. 展开更多
关键词 肾结石 激光 固体 碎石术 肾造口术 经皮 输尿管镜检查
输尿管镜内置4F输尿管导管联合钬激光碎石治疗感染性输尿管结石的临床研究
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作者 袁秦波 王强东 +1 位作者 董振佳 肖旭 《国际泌尿系统杂志》 2019年第3期425-428,共4页
目的探讨输尿管镜内置4F输尿管导管联合钬激光碎石治疗感染性输尿管结石的临床价值。方法选取2016年1月至2018年3月采用钬激光治疗的感染性输尿管结石70例患者作为研究对象,其中36例采用输尿管镜内置4F输尿管导管联合钬激光碎石术,34例... 目的探讨输尿管镜内置4F输尿管导管联合钬激光碎石治疗感染性输尿管结石的临床价值。方法选取2016年1月至2018年3月采用钬激光治疗的感染性输尿管结石70例患者作为研究对象,其中36例采用输尿管镜内置4F输尿管导管联合钬激光碎石术,34例采用经尿道输尿管镜碎石术,观察两种术式手术效果与术后发生感染的差异。结果两组手术碎石成功率均达100%。输尿管镜内置4F输尿管导管联合钬激光碎石组碎石过程中输尿管管腔内压力、手术时间、术后住院时间均低于经尿道输尿管镜碎石组(P<0.05);术后发热程度、发热持续时间均低于经尿道输尿管镜碎石组(P<0.05)。结论输尿管镜内置4F输尿管导管联合钬激光碎石治疗感染性输尿管结石安全、有效,可降低术后感染发生率。 展开更多
关键词 输尿管结石 感染 输尿管镜检查 激光 固体
A New Hemi-and Holo-directed Lead(Ⅱ) Complex in Soft Ligand Environment 预览
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作者 谢璐璐 才华 +3 位作者 张阳 刘若冰 杨建辉 王欣怡 《结构化学》 SCIE CAS CSCD 2019年第5期803-810,671共9页
One new three-dimensional polymeric PbⅡ complex,[Pb3(CTA)2(H2 O)2]n·nH2O(1),(H3 CTA = cis,cis-1,3,5-cyclohexanetricarboxylic acid), has been synthesized. Single-crystal X-ray diffraction analyses reveal that com... One new three-dimensional polymeric PbⅡ complex,[Pb3(CTA)2(H2 O)2]n·nH2O(1),(H3 CTA = cis,cis-1,3,5-cyclohexanetricarboxylic acid), has been synthesized. Single-crystal X-ray diffraction analyses reveal that complex 1 has a three-dimensional architecture consisting of Pb2O2 dimeric building units, which shows two types of PbⅡ centers(eight-coordinated Pb(1),six-coordinated Pb(2) and Pb(3)). The eight-coordinated Pb(1) center possesses a stereochemically ‘inactive’ electron lone pair, and the coordination sphere is holodirected. However, the arrangement of oxygen atoms around Pb(2) and Pb(3) suggests a gap or hole in the coordination geometry. The stereo-chemically ‘active’ electron lone pairs of Pb(2) and Pb(3) possibly occupy these ‘holes’ and their coordination spheres are hemidirected. Its properties have been determined by FT-IR spectra, elemental analyses and thermogravimetric analyses(TGA). Solid-state luminescent properties of 1 also have been determined, indicating strong fluorescent emissions. 展开更多
关键词 lead(Ⅱ) complex SOLID-STATE LUMINESCENT holodirected hemidirected
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Advances in narrow linewidth diode lasers
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作者 Xingkai LANG Peng JIA +7 位作者 Yongyi CHEN Li QIN Lei LIANG Chao CHEN Yubing WANG Xiaonan SHAN Yongqiang NING Lijun WANG 《中国科学:信息科学(英文版)》 SCIE EI CSCD 2019年第6期21-33,共13页
The smart travel era has come and requirement for high precision lidar detection technology is higher and higher. The new solid-state lidars can meet the requirements of intelligent cars in the future, with the advant... The smart travel era has come and requirement for high precision lidar detection technology is higher and higher. The new solid-state lidars can meet the requirements of intelligent cars in the future, with the advantages of high resolution, strong anti-active jamming ability, small volume, light weight, low cost and so on. The narrow linewidth diode laser is the perfect light source of solid-state lidars. The progress and development of narrow linewidth diode laser technique can greatly improve the application of solidstate lidar. The technology and development status of narrow linewidth diode lasers has been described detailly in the paper. And the design ideas, key fabrication technologies and optical characteristics of various narrow linewidth diode lasers have been analyzed and discussed as well. Finally, the developments of narrow linewidth diode lasers are prospected. 展开更多
关键词 diode lasers narrow LINEWIDTH internal CAVITY OPTICAL FEEDBACK TECHNOLOGY external CAVITY OPTICAL FEEDBACK TECHNOLOGY SOLID-STATE lidar
Phenanthrene derivatives combined charge transport properties and strong solid-state emission
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作者 Jinfeng Li Chenguang Li +3 位作者 Lingjie Sun Xiaotao Zhang Shanshan Cheng Wenping Hu 《中国科学:化学英文版》 SCIE EI CAS CSCD 2019年第7期916-920,共5页
As bifunctional materials, phenanthrene derivatives 2,7-diphenylphenanthrene and 2,7-di(styryl)phenanthrene(DPPa and DSPa) were designed and studied. Both materials show charge transport properties and strong solid-st... As bifunctional materials, phenanthrene derivatives 2,7-diphenylphenanthrene and 2,7-di(styryl)phenanthrene(DPPa and DSPa) were designed and studied. Both materials show charge transport properties and strong solid-state emission. The hole mobility was measured to be 1.6 and 0.4 cm^2 V-1 s^-1 for DPPa and DSPa, respectively. While the photoluminescence quantum yield of DPPa and DSPa was as high as 37.13% and 62.36%, respectively. 展开更多
关键词 PHENANTHRENE DERIVATIVES OFET STRONG SOLID-STATE EMISSION
钬激光前列腺剜除术治疗前列腺增生的手术效率及学习曲线探讨
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作者 沈锋 缪惠东 +1 位作者 薛亚岗 袁晓林 《国际泌尿系统杂志》 2019年第4期633-636,共4页
目的评价钬激光前列腺剜除术治疗前列腺增生的手术效率及学习曲线.方法本研究回顾性地分析了一名具有丰富TURP术经验的泌尿外科手术医师使用钬激光前列腺剜除术治疗前列腺增生的前60例患者的手术资料,按手术的时间顺序分为早期组、中期... 目的评价钬激光前列腺剜除术治疗前列腺增生的手术效率及学习曲线.方法本研究回顾性地分析了一名具有丰富TURP术经验的泌尿外科手术医师使用钬激光前列腺剜除术治疗前列腺增生的前60例患者的手术资料,按手术的时间顺序分为早期组、中期组、后期组,每组20例患者.比较三组患者手术时间、术后血红蛋白水平、留置尿管时间、术后住院时间、手术剜除效率、血红蛋白下降值,利用手术剜除效率拟合学习曲线.结果早期组、中期组、后期组手术剜除前列腺时间逐渐缩短,剜除效率逐渐增高,差异具有统计学意义(P<0.05);而三组间手术时间、组织粉碎时间、血红蛋白下降值、留置尿管时间、术后住院时间差异无统计学意义(P>0.05).结论有TURP术经验的手术医师学习HoLEP术是可行的,且手术经验的积攒会逐渐提高剜除效率. 展开更多
关键词 前列腺增生 激光 固体 前列腺切除术
同期输尿管软镜钬激光治疗双侧上尿路结石的临床分析 预览
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作者 王磊 马玲 乔庆东 《重庆医学》 CAS 2019年第19期3330-3332,3336共4页
目的评价输尿管软镜钬激光碎石术治疗双侧上尿路结石效果。方法回顾性分析2014年10月至2018年9月输尿管软镜联合钬激光碎石术治疗双侧上尿路结石52例患者临床资料,平均年龄(42±14)岁,平均结石数(4.5±2.0)个,结石平均累计最大... 目的评价输尿管软镜钬激光碎石术治疗双侧上尿路结石效果。方法回顾性分析2014年10月至2018年9月输尿管软镜联合钬激光碎石术治疗双侧上尿路结石52例患者临床资料,平均年龄(42±14)岁,平均结石数(4.5±2.0)个,结石平均累计最大径线(2.3±1.1)cm,平均CT值(1 352±624)HU。静脉麻醉行双侧软镜钬激光碎石术,术后无残石或残石直径小于4 mm视为成功。分析手术时间、结石清除率及并发症情况。结果本组患者46例同期行输尿管软镜钬激光双侧碎石,成功率88.5%,2例因单侧或双侧输尿管狭窄留置支架管二期碎石,3例结石负荷过大行二次碎石,1例输尿管狭窄改开放取石术。输尿管软镜钬激光碎石手术时间为50~280 min,平均(91.5±42.2)min,结石清除率为89.1%,8例术后发热,3例尿源性脓毒血症抗感染治疗后痊愈,回归分析显示:肾积水及结石累计最大径线是结石清除率独立影响因素。结论输尿管软镜钬激光碎石术疗效显著,是同期处理双侧上尿路结石有效方法,对于结石负荷量较大或伴感染患者严格把握适应证,防止严重并发症出现。 展开更多
关键词 输尿管软镜 激光 固体 输尿管结石 肾结石
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基于DSRD的纳秒级固态脉冲发生器的研制
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作者 张琦 宋法伦 +2 位作者 金晓 李飞 王淦平 《半导体技术》 CAS 北大核心 2019年第6期483-487,共5页
采用新型半导体开关漂移阶跃恢复二极管(DSRD)研制了一种纳秒级固态脉冲发生器。通过建立DSRD仿真等效模型,模拟DSRD器件的真实输出波形;采用双极并联结构电路设计,满足DSRD工作所需的电流要求;构建发生器系统工作电路仿真模型,并分析... 采用新型半导体开关漂移阶跃恢复二极管(DSRD)研制了一种纳秒级固态脉冲发生器。通过建立DSRD仿真等效模型,模拟DSRD器件的真实输出波形;采用双极并联结构电路设计,满足DSRD工作所需的电流要求;构建发生器系统工作电路仿真模型,并分析了电路参数对DSRD脉冲发生器系统输出波形的影响。针对脉冲发生器小型化的问题,将部分模块集成设计制作,优化布局,有效减少体积,减轻重量。结果表明:其输出电压可达3.74 kV,脉冲前沿8.2 ns,在重复频率200 Hz条件下可以稳定工作。研制出的脉冲发生器实现了较好的波形输出,为进一步实现固态脉冲源的小型化打下基础。 展开更多
关键词 漂移阶跃恢复二极管(DSRD) 脉冲发生器 固态化 快前沿 高重频
A zinc(Ⅱ) MOF based on secondary building units of infinite wavy-shaped chain exhibiting obvious luminescent sense effects
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作者 Kai Li Kunhuan He +3 位作者 Quanwen Li Bin Xia Qinglun Wang Yinghui Zhang 《中国化学快报:英文版》 SCIE CAS CSCD 2019年第2期499-501,共3页
A new metal-organic framework (MOF),{[Zn7 (BPS)4 (OH)6 (H2O)2]·5 H2O]n}(1), (H2 BPS=4,4′-bibenzoic acid-2,2′-sulfone), based on a wavy and infinite chain-shaped secondary building units, has been synthesized un... A new metal-organic framework (MOF),{[Zn7 (BPS)4 (OH)6 (H2O)2]·5 H2O]n}(1), (H2 BPS=4,4′-bibenzoic acid-2,2′-sulfone), based on a wavy and infinite chain-shaped secondary building units, has been synthesized under solvothermal conditions and characterized by single crystal X-ray diffraction and further confirmed by PXRD, TGA and IR spectrum. The solid-state emission spectra reveal that compound 1 presents strong luminescence emission bands at room temperature. The fluorescent properties of compound 1 in diverse organic solvents indicated that 1 has palpable luminescent sense effects for DMF and DMAC. 展开更多
关键词 METAL-ORGANIC frameworks Secondary building unit SOLID-STATE emission spectra Fluorescent properties LUMINESCENT SENSE EFFECTS
小功率钬激光前列腺剜除术的安全性及疗效分析
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作者 郑宇飞 冯超 +3 位作者 张保朝 胡玉德 刘春雨 刘利维 《国际泌尿系统杂志》 2019年第5期826-829,共4页
目的评估使用小功率钬激光前列腺剜除术(LP-HoLEP)治疗良性前列腺增生(BPH)的安全性及疗效。方法收集本院2016年7月至2017年6月接受手术治疗的BPH患者120例,分为LP-HoLEP组(n=60)和TURP组(n=60),比较两组切除标本重量、手术时间、术后... 目的评估使用小功率钬激光前列腺剜除术(LP-HoLEP)治疗良性前列腺增生(BPH)的安全性及疗效。方法收集本院2016年7月至2017年6月接受手术治疗的BPH患者120例,分为LP-HoLEP组(n=60)和TURP组(n=60),比较两组切除标本重量、手术时间、术后膀胱冲洗时间、术后住院时间、术后并发症发生情况以及术后3个月最大尿流率(Qmax)、残余尿(RUV)JPSS、QOL。结果两组患者均成功完成手术。同TURP组比,LP-HoLEP组切除标本多,手术时间短,尿路感染风险低,术后膀胱冲洗时间及术后住院时间短,差异具有统计学意义(P<0.05).术后随访3个月,两组间Qmax、RUV、IPSS、QOL比较,差异无统计学意义(P>0.05)。结论小功率钬激光前列腺切除术安全、右效。同大功率钬激光相比,其引进成木低,安全性高,值得进一步推广应用。 展开更多
关键词 前列腺增生 激光 固体 前列腺切除术
钬激光前列腺剜除术与前列腺电切术及等离子电切术的疗效对比
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作者 徐萧龙 丁宏毅 姜书传 《国际泌尿系统杂志》 2019年第5期829-833,共5页
目的比较经尿道钬激光前列腺剜除术与前列腺电切术及等离子电切术的疗效。方法回顾性分析2016年2月至2017年11月在本院收治的良性前列腺增生症行手术治疗患者247例的临床资料,根据术式不同分为经尿道前列腺电切术(TURP组)86例,经尿道前... 目的比较经尿道钬激光前列腺剜除术与前列腺电切术及等离子电切术的疗效。方法回顾性分析2016年2月至2017年11月在本院收治的良性前列腺增生症行手术治疗患者247例的临床资料,根据术式不同分为经尿道前列腺电切术(TURP组)86例,经尿道前列腺等离子电切术(PKRP组)104例,经尿道钬激光前列腺剜除术(HoLEP组)57例,对比术中及术后相关数据进行分析。结果247例手术均成功,HoLEP组手术时间明显较TURP、PKRP组长,差异有统计学意义(P<0.05);HoLEP组术后血红蛋白下降值明显低于TURP、PKRP组,差异有统计学意义(P<0.05);术后血钠下降值HoLEP组明显低于TURP、PKRP组,差异有统计学意义(P<0.05);导尿管留置时间HoLEP组明显短于TURP、PKRP组,差异有统计学意义(P<0.05);HoLEP组术后住院时间较TURP、PKRP组明显缩短,差异有统计学意义(P<0.0 5)。三组术后并发症比较差异无统计学意义(P>0.05)。三组术后IPSS、Q0L、Qmax较各自术前指标明显改善,差异有统计学意义(P<0.05),三组之间比较差异无统计学意义(P>0.05)。结论HoLEP与TURP、PKRP对B PH的短期疗效类似,HoLEP较TURP、PKRP出血更少,恢复更快。 展开更多
关键词 前列腺增生 激光 固体 前列腺切除术 经尿道前列腺切除术
Anisotropic stimulated emission cross-section measurement in Nd:YVO4
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作者 郭瑞 申艺杰 +1 位作者 孟鸢 巩马理 《中国物理B:英文版》 SCIE EI CAS CSCD 2019年第4期202-206,共5页
As a crucial parameter in the design and analysis of laser performances, stimulated emission(SE) cross-section is currently considered to be dependent on several factors, such as temperatures and eigen-polarizations f... As a crucial parameter in the design and analysis of laser performances, stimulated emission(SE) cross-section is currently considered to be dependent on several factors, such as temperatures and eigen-polarizations for anisotropic crystals. In contrast with these factors, impact of propagating directions upon SE cross-section has garnered less attention.In this paper, to investigate the SE cross-section in arbitrary propagating directions, fluorescence spectra for the transition 4F3/2→4I11/2 in Nd:YVO4 are measured in different propagating directions. Based on Fuchtbauer–Ladenburg equation model, the propagating direction-dependent SE cross-section spectra in Nd:YVO4 are obtained for the first time, to our best knowledge. A novel concept of anisotropic SE cross-section is proposed to interpret the propagating direction-dependent effect. The experiment results reveal that for an arbitrary propagating direction the SE cross-section of e light around 1064 nm can be expressed as a superposition from two principle axial propagating directions with a weight of plane projection. 展开更多
关键词 SOLID-STATE LASERS stimulated emission CROSS-SECTION ND:YVO4 laser SPECTROSCOPY
Graphdiyne oxide enhances the stability of solid contact-based ionselective electrodes for excellent in vivo analysis
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作者 Lijun Zhao Ying Jiang +3 位作者 Jie Hao Huan Wei Wei Zheng Lanqun Mao 《中国科学:化学英文版》 SCIE EI CAS CSCD 2019年第10期1414-1420,共7页
Quantitively and stably tracking ion dynamics in the living brain of animals is essential to understanding many physiological and pathological processes.Solid-state ion-selective electrodes(ISEs)are powerful tools for... Quantitively and stably tracking ion dynamics in the living brain of animals is essential to understanding many physiological and pathological processes.Solid-state ion-selective electrodes(ISEs)are powerful tools for monitoring the dynamic change of ions at physiological concentration range;however,the unintentional accumulation of an aqueous layer at the ion selective membrane/solid contact interface compromises the electrode potential stability,limiting its in vivo application.Here,using manganese dioxide(MnO2)and potassium ISE(K-+ISE)as model solid contact and ISEs,we demonstrate for the first time that graphdiyne oxide(GDYO)can enhance the potential stability of solid contact-based ISEs.Our results suggest that the intrinsic structural and hydrophobic features of GDYO,plays a key role in impeding and stabilizing the formation of water layer.With GDYO-MnO2 acting as the solid contact,the K-+ISE displays an excellent short-term potential stability and maintains great selectivity,achieving reliable K+sensing at the animal level.The GDYO-based strategy is generalizable to different ISEs and does not require complicated processing steps,paving an exciting opportunity for in vivo ion recognition and sensing. 展开更多
关键词 in vivo analysis graphdiyne OXIDE SOLID-STATE ION selective electrodes water layer
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