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LC-MS/MS快速测定血液中13种安眠镇静类药物及其代谢产物 认领
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作者 石银涛 王绘军 +2 位作者 王俊伟 郑经 吴玉红 《法医学杂志》 CAS CSCD 2020年第1期45-51,共7页
目的采用液液提取与液相色谱-串联质谱(liquid chromatography-tandem mass spectrometry,LC-MS/MS)技术,建立同时测定血液中13种安眠镇静类药物及其代谢产物的分析方法,并将其应用于实际案例。方法血液加入内标后,用乙酸乙酯提取,浓缩... 目的采用液液提取与液相色谱-串联质谱(liquid chromatography-tandem mass spectrometry,LC-MS/MS)技术,建立同时测定血液中13种安眠镇静类药物及其代谢产物的分析方法,并将其应用于实际案例。方法血液加入内标后,用乙酸乙酯提取,浓缩至近干后,用甲醇溶解残渣,过0.22μm滤膜后测定。13种安眠镇静类药物及其代谢物经C18色谱柱分离,以甲醇和20 mmol/L甲酸铵(含0.1%甲酸)水溶液进行梯度洗脱,电喷雾正离子模式检测,内标法定量。结果血液中13种安眠镇静类药物及其代谢物在5~200μg/L范围内具有良好的线性关系,相关系数为0.990 3~0.999 8,检出限为0.1~1.0μg/L;在10、50、200μg/L3个添加浓度水平的回收率为71.2%~93.4%,日内和日间精密度≤8.6%,准确度(偏倚)在±9.8%范围内。结论本方法快速、简单、高效、灵敏度高,可用于法医毒物学领域血液中13种安眠镇静类药物及其代谢产物的分析。 展开更多
关键词 法医毒理学 催眠药和镇静药 色谱法 液相 质谱分析法 液液萃取 血液
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Progress in electrolytes for beyond-lithium-ion batteries 认领
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作者 Juyan Zhang Xuhui Yao +2 位作者 Ravi KMisra Qiong Cai Yunlong Zhao 《材料科学技术:英文版》 SCIE EI CAS CSCD 2020年第9期237-257,共21页
The constant increase in global energy demand and stricter environmental standards are calling for advanced energy storage technologies that can store electricity from intermittent renewable sources such as wind,solar... The constant increase in global energy demand and stricter environmental standards are calling for advanced energy storage technologies that can store electricity from intermittent renewable sources such as wind,solar,and tidal power,to allow the broader implementation of the renewables.The gridoriented sodium-ion batteries,potassium ion batteries and multivalent ion batteries are cheaper and more sustainable alternatives to Li-ion,although they are still in the early stages of development.Additional optimisation of these battery systems is required,to improve the energy and power density,and to solve the safety issues caused by dendrites growth in anodes.Electrolyte,one of the most critical components in these batteries,could significantly influence the electrochemical performances and operations of batteries.In this review,the definitions and influences of three critical components(salts,solvents,and additives)in electrolytes are discussed.The significant advantages,challenges,recent progress and future optimisation directions of various electrolytes for monovalent and multivalent ions batteries(i.e.organic,ionic liquid and aqueous liquid electrolytes,polymer and inorganic solid electrolytes)are summarised to guide the practical application for grid-oriented batteries. 展开更多
关键词 Electrolytes Organic liquid electrolyte Aqueous electrolyte Ionic liquid electrolyte Solid-state electrolyte Sodium-ion batteries Potassium ion batteries Multivalent ion batteries
分组增强型OTN技术在轨道交通中的应用研究 认领
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作者 郭祥寿 《铁路通信信号工程技术》 2020年第6期95-99,103,共6页
在分析分组增强型OTN的技术原理以及大带宽、物理隔离等优势的基础上,深入剖析了分组增强型OTN针对轨道交通各类业务承载的实现方式,同时对各类组网方式下对业务的保护原理进行研究,明确分组增强型OTN能够适应轨道交通业务持续发展的需... 在分析分组增强型OTN的技术原理以及大带宽、物理隔离等优势的基础上,深入剖析了分组增强型OTN针对轨道交通各类业务承载的实现方式,同时对各类组网方式下对业务的保护原理进行研究,明确分组增强型OTN能够适应轨道交通业务持续发展的需要,并提出带宽利用率更高的Liquid OTN发展方向。 展开更多
关键词 线路传输网 分组增强型OTN Liquid OTN
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通过离子液体选择性调控铜氧化物中的易失和非易失超导电性 认领
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作者 魏鑫健 李好博 +19 位作者 张庆华 李栋 秦明阳 许立 胡卫 郇庆 俞理 苗君 袁洁 朱北沂 Anna Kusmartseva Feo V.Kusmartsev Alejandro V.Silhanek 向涛 于伟强 林媛 谷林 于浦 陈其宏 金魁 《科学通报:英文版》 SCIE EI CAS CSCD 2020年第19期1607-1613,M0003,共8页
高效、可靠地调控铜氧化物超导体的超导态,对其在下一代电子学中的应用具有重要意义.本文研究了绝缘Pr2CuO4±δ(PCO)薄膜的离子液体调控行为,发现可以利用两种不同的调控机制分别诱导出易失和非易失的超导态.在正电场调控下,薄膜... 高效、可靠地调控铜氧化物超导体的超导态,对其在下一代电子学中的应用具有重要意义.本文研究了绝缘Pr2CuO4±δ(PCO)薄膜的离子液体调控行为,发现可以利用两种不同的调控机制分别诱导出易失和非易失的超导态.在正电场调控下,薄膜可以在超导态和非超导态之间可逆转换,这归因于载流子的掺杂效应.另外,对绝缘的样品进行负偏压的调控,当偏压加至-4 V时,样品的电阻明显增大.值得关注的是,一旦撤去栅极电压,样品获得了非易失的超导电性.高分辨扫描电子显微镜和原位X射线衍射实验的结果表明,负向调控过程修复了铜氧面中的氧空位.对于电子型铜氧化物而言,这是一种诱导超导电性的独特途径.在同一个铜氧化物母体中有效地调控易失和非易失超导电性,为超导电子器件和高温超导体中量子相变的研究提供了新的渠道. 展开更多
关键词 Parent cuprate Electron-doped copper oxide Superconducting thin film Ionic liquid gating Volatile and non-volatile superconductivity
Measurement and verification of concentration-dependent diffusion coefficient:Ray tracing imagery of diffusion process 认领
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作者 魏利 孟伟东 +2 位作者 孙丽存 曹新飞 普小云 《中国物理B:英文版》 SCIE EI CAS CSCD 2020年第8期292-301,共10页
Ray tracing method is used to study the propagation of collimated beams in a liquid-core cylindrical lens(LCL),which has dual functions of diffusion cell and image formation.The diffusion images on the focal plane of ... Ray tracing method is used to study the propagation of collimated beams in a liquid-core cylindrical lens(LCL),which has dual functions of diffusion cell and image formation.The diffusion images on the focal plane of the used LCL are simulated by establishing and solving both linear and nonlinear ray equations,the calculated results indicate that the complex imaging results of LCL in inhomogeneous media can be treated by the law of ray propagation in homogeneous media under the condition of small refractive index gradient of diffusion solution.Guided by the calculation conditions,the diffusion process of triethylene glycol aqueous solution is experimentally studied at room temperature by using the LCL in this paper.The spatial and temporal concentration profile Ce(z,t)of diffusion solution is obtained by analyzing diffusion image appearing on the focal plane of the LCL;Then,the concentration-dependent diffusion coefficient is assumed to be a polynomial D(C)=D0×(1+α1C+α2C2+α3C3+…).The finite difference method is used to solve the Fick diffusion equation for calculating numerically the concentration profiles Cn(z,t).The D(C)of triethylene glycol aqueous solution is obtained by comparing the Cn(z,t)with Ce(z,t).Finally,the obtained polynomial D(C)is used to calculate the refractive index profiles nn(z,t)s of diffusion solution in the used LCL.Based on the ray propagation law in inhomogeneous media and the calculated n(z,t),the ray tracing method is used again to simulate the dynamic images of the whole experimental diffusion process to varify the correctness of the calculated D(C).The method presented in this work opens up a new way for both measuring and verifying the concentration-dependent liquid diffusion coefficients. 展开更多
关键词 concentration-dependent liquid diffusion coefficients liquid-core cylindrical lens nonlinear ray equation ray tracing method
Effects of Semi-Solid Enteral Formula on Aspiration Pneumonia and Diarrhea 认领
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作者 Minoru Oishi Minako Yasuda +8 位作者 Mao Chikamatsu Rena Akiyama Michio Yamamoto Keisuke Terakawa Yumi Suzuki Mizuki Ando Mariko Shimada Tadashi Kumagai Akiko Nakayama 《临床医学国际期刊(英文)》 2020年第4期193-198,共6页
Objective: The effects of semi-solid enteral formula were investigated in tube feeding patients with aspiration pneumonia and/or diarrhea caused by liquid enteral formula. Methods: In 25 cases of aspiration pneumonia ... Objective: The effects of semi-solid enteral formula were investigated in tube feeding patients with aspiration pneumonia and/or diarrhea caused by liquid enteral formula. Methods: In 25 cases of aspiration pneumonia and 10 cases of diarrhea (5 cases had both aspiration pneumonia and diarrhea) caused by liquid enteral formula, the rate of improvement by changing the liquid enteral formula to semi-solid enteral formula was studied. The semi-solid enteral formula (PG Soft&reg;EJ) was infused via the nasogastric tube (16Fr) or percutaneous endoscopic gastrostomy (PEG) tube (20Fr). Results: The semi-solid enteral formula was effective in 72% of aspiration pneumonia cases and in 80% of diarrhea cases. Constipation was observed in one case but was controlled with magnesium oxide. Conclusion: In cases of aspiration pneumonia and/or diarrhea, changing liquid enteral formula to semi-solid enteral formula frequently shows improvement. 展开更多
关键词 SEMI-SOLID ENTERAL FORMULA Tube Feeding ASPIRATION PNEUMONIA DIARRHEA Liquid FORMULA Syndrome
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Covalent Bonds Creation between Gas and Liquid Phase Change: Compatibility with Covalent and Even-Odd Rules Based on a “Specific Periodic Table for Liquids” 认领
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作者 Geoffroy Auvert 《物理化学期刊(英文)》 2020年第1期68-85,共18页
A decrease in temperature will eventually turn a gas into liquid and then into a solid. Each of these phase change shows a higher degree in cohesion of molecules. While it is usually admitted that molecules in solids ... A decrease in temperature will eventually turn a gas into liquid and then into a solid. Each of these phase change shows a higher degree in cohesion of molecules. While it is usually admitted that molecules in solids form additional connections, the cohesion of molecules in liquids is usually explained by changes in kinetics of molecules. Given that the density of a solid is nearly the same than that of a liquid, the present paper assumes a different stand and considers that connections between molecules must be similar in liquids and in solids. The difference between gas, in which molecules are entirely loose, and liquid, is therefore the presence of an additional connection between gaseous molecules. This paper describes how and where these connections are built with the help of a few rules and a “specific periodic table for liquids”. The coherence of this approach is reinforced by its capacity to explain phase change of forty well-known molecules containing inorganic and organic elements. 展开更多
关键词 COVALENT Bond Even-Odd Rule LIQUID GAS Periodic Table MOLECULE Association DISSOCIATION
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Comparison of Liquid Water Content Retrievals for Airborne Millimeter-Wave Radar with Different Particle Parameter Schemes 认领
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作者 崔新东 姚志刚 +3 位作者 赵增亮 王敏威 范春晖 苏涛 《热带气象学报:英文版》 SCIE 2020年第2期188-198,共11页
In the application of the physical iterative method to retrieve millimeter-wave radar liquid water content(LWC)and liquid water path(LWP),particle parameter scheme is the main factor affecting retrieval performance.In... In the application of the physical iterative method to retrieve millimeter-wave radar liquid water content(LWC)and liquid water path(LWP),particle parameter scheme is the main factor affecting retrieval performance.In this paper,synchronous measurements of an airborne millimeter-wave radar and a hot-wire probe in stratus cloud are used to compare the LWC retrievals of the oceanic and continental particle parameter scheme with diameter less than 50μm and the particle parameter scheme with diameter less than 500μm and 1500μm(scheme 1,scheme 2,scheme 3,and scheme4,respectively).The results show that the particle parameter scheme needs to be selected according to the reflectivity factor when using the physical iterative method to retrieve the LWC and LWP.When the reflectivity factor is less than-30 d BZ,the retrieval error of scheme 1 is the minimum.When the reflectivity factor is greater than-30 d BZ,the retrieval error of scheme 4 is the minimum.Based on the reflectance factor value,the LWP retrievals of scheme 4 are closer to the measurements,the average relative bias is 5.2%,and the minimum relative bias is 4.4%.Compared with other schemes,scheme 4 seems to be more useful for the LWC and LWP retrieval of stratus cloud in China. 展开更多
关键词 millimeter-wave radar physical iterative method particle parameter scheme liquid water content liquid water path
Tracking the atomic pathways of Pt3Ni-Ni(OH)2 core-shell structures at the gas-liquid interface by in-situ liquid cell TEM 认领
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作者 Junyu Zhang Gen Li +1 位作者 Hong-Gang Liao Shi-Gang Sun 《中国科学:化学英文版》 SCIE EI CAS CSCD 2020年第4期513-518,共6页
Using the in-situ liquid cell transmission electron microscopy, the three-stage growth of Pt3Ni-Ni(OH)2 core-shell structures at the gas-liquid interfaces was clearly observed, which consists of(1) a thermodynamically... Using the in-situ liquid cell transmission electron microscopy, the three-stage growth of Pt3Ni-Ni(OH)2 core-shell structures at the gas-liquid interfaces was clearly observed, which consists of(1) a thermodynamically driven Pt3Ni alloy core by the monomer attachment,(2) a nickel(Ni) shell formation due to the depletion of the Pt salt precursor, and(3) the oxidation and of the Ni shell into Ni(OH)2 flakes. We also further observed the nucleation and growth of the Ni(OH)2 flakes on an existing layer either at the middle part or at the step edge. More interestingly, the dynamic transformation among a Pt3Ni alloy, Ni clusters and Ni(OH)2 flakes was also imaged even at a high electron dose rate. 展开更多
关键词 Pt3Ni-Ni(OH)2 CORE-SHELL structure LIQUID CELL electron microscopy GAS-LIQUID interface dynamic transformation
Effect of Semen Extender and Storage Temperature on Motility of Ram Spermatozoa 认领
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作者 Mohan Acharya Joan M. Burke Rick W. Rorie 《生殖科学(英文)》 2020年第1期14-30,共17页
Cryopreservation of ram semen results in low post-thaw survival. Thus, studies were conducted to optimize liquid-storage of chilled semen. In Experiment 1, semen collected from rams (n = 5) was extended using either m... Cryopreservation of ram semen results in low post-thaw survival. Thus, studies were conducted to optimize liquid-storage of chilled semen. In Experiment 1, semen collected from rams (n = 5) was extended using either milk, TRIS (tris[Hydroxymethyl]aminomethane), TEST (N-Tris (hydroxymethyl)-methyl-2-aminoethane sulfonic acid), or CJ-2 (choline-based extender) and stored at either 4℃ and 15℃. All extenders were supplemented with 5% (v/v) egg yolk. In Experiment 2, semen collected from 9 rams was distributed across TRIS or milk extenders supplemented with 5% or 20% (v/v) egg yolk, and 0 or 1% ethylene glycol (EG), during storage for 72 hours at 4℃. The effect of penicillamine, hypotaurine, and epinephrine (PHE) on motility parameters was also evaluated following storage. In Experiment 1, most of the sperm motility parameters were higher after extension, and storage at 4℃ compared with 15℃ (P P in vivo sperm viability and conception rates when using extended, stored semen for artificial insemination of ewes. 展开更多
关键词 SEMEN EXTENDERS RAM SEMEN Liquid STORAGE SHEEP
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铂铁合金纳米片构筑三维支化结构的界面调控及其氧还原催化性能 认领
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作者 骆明川 秦英楠 +8 位作者 李蒙刚 孙英俊 李春姬 李英杰 杨勇 吕帆 吴冬 周鹏 郭少军 《科学通报:英文版》 SCIE EI CSCD 2020年第2期97-104,87共9页
高度支化的树枝状铂(Pt)基纳米晶在氧还原催化反应(ORR)中具有很大的研究价值,但由于其较差的热稳定性和电化学稳定性而遇到性能瓶颈.本文提出了一种与传统一维(1D)纳米线构建的纳米枝晶(NDs)不同的Pt Fe纳米枝晶新结构.该结构主要由二... 高度支化的树枝状铂(Pt)基纳米晶在氧还原催化反应(ORR)中具有很大的研究价值,但由于其较差的热稳定性和电化学稳定性而遇到性能瓶颈.本文提出了一种与传统一维(1D)纳米线构建的纳米枝晶(NDs)不同的Pt Fe纳米枝晶新结构.该结构主要由二维(2D)孪晶纳米片构建,并且通过适当热处理过程所形成的Pt表面形态打破了支状Pt基催化剂的活性上限.进一步将其与氨基功能化的离子液体(ILs)结合,在相对于可逆氢电极的0.9 V电位下,获得了Pt Fe基ORR电催化剂的超高质量活性(3.15 A/mgPt).在循环20,000个周期后,该催化剂呈现出可以忽略不计的活性衰减和结构变化,表现出对ORR电催化反应的卓越耐久性,与由纳米线构建而成的Pt Fe NDs形成了鲜明对比.这种优异的电催化性能是几种独特的结构特征共同导致的,主要包括2D形态、孪晶界面、部分有序结构以及与氨基的强配位.本研究强调了通过形貌调控和进一步的表界面调控获得稳定的电催化剂结构的重要性,最终实现了ORR电催化剂的性能突破. 展开更多
关键词 OXYGEN reduction reaction PTFE alloy Dendrities NANOPLATES IONIC liquid
Effects of imidazolium-based ionic liquids on the isobaric vapor–liquid equilibria of methanol+dimethyl carbonate azeotropic systems 认领
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作者 Songsong Chen Li Dong +4 位作者 Junping Zhang Weiguo Cheng Feng Huo Qian Su Wei Hua 《中国化学工程学报:英文版》 SCIE EI CAS CSCD 2020年第3期766-776,共11页
The separation of methanol(MeOH)and dimethyl carbonate(DMC)is important but difficult due to the formation of an azeotropic mixture.In this work,isobaric vapor–liquid equilibrium(VLE)data for the ternary systems cont... The separation of methanol(MeOH)and dimethyl carbonate(DMC)is important but difficult due to the formation of an azeotropic mixture.In this work,isobaric vapor–liquid equilibrium(VLE)data for the ternary systems containing different imidazolium–based ionic liquids(ILs),i.e.MeOH+DMC+1-butyl-3-methy-limidazolium bis[(trifluoromethyl)sulfonyl]imide([Bmim][Tf2N]),MeOH+DMC+1-ethyl-3-methyl-imidazolium bis[(trifluoromethyl)sulfonyl]imide([Emim][Tf2N]),and MeOH+DMC+1-ethyl-3-methylimidazolium hexafluorophosphate([Emim][PF6])were measured at 101.3 kPa.The mole fraction of IL was varied from0.05 to 0.20.The experimental data were correlated with the NRTL and Wilson equations,respectively.The results show that imidazolium-based ILs were beneficial to improve the relative volatility of MeOH to DMC,and[Bmim][Tf2 N]showed a much more excellent performance on the activity coefficient of MeOH.The interaction energies of system components were calculated using Gaussian program,and the effects of cation and anion on the separation coefficient of the azeotropic system were discussed. 展开更多
关键词 Vapor liquid equilibria Ionic liquid AZEOTROPE Separation Interaction energy
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Dynamic modulation performance of ferroelectric liquid crystal polarization rotators and Mueller matrix polarimeter optimization 认领
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作者 Song ZHANG Lelun WANG +4 位作者 Anze YI Honggang GU Xiuguo CHEN Hao JIANG Shiyuan LIU 《机械工程前沿:英文版》 SCIE CSCD 2020年第2期256-264,共9页
A ferroelectric liquid crystal polarization rotator(FLCPR)has been widely used in polarization measurement due to its fast and stable modulation characteristics.The accurate characterization of the modulation performa... A ferroelectric liquid crystal polarization rotator(FLCPR)has been widely used in polarization measurement due to its fast and stable modulation characteristics.The accurate characterization of the modulation performance of FLCPR directly affects the measurement accuracy of the instrument based on liquid crystal modulation.In this study,FLCPR is accurately characterized using a self-developed high-speed Stokes polarimeter.Strong linear and weak circular birefringence are observed during modulation processes,and all the optical parameters of FLCPR are dependent on driving voltage.A dual FLCPR-based Mueller matrix polarimeter is designed on the basis of the Stokes polarimeter.The designed polarimeter combines the advantages of the high modulation frequency of FLCPR and the ultrahigh temporal resolution of the fast polarization measurement system in the Stokes polarimeter.The optimal configuration of the designed polarizer is predicted in accordance with singular value decomposition.A simulated thickness measurement of a 24 nm standard SiO2 thin film is performed using the optimal configuration.Results show that the relative error in thickness measurement caused by using the unsatisfactory modulation characteristics of FLCPR reaches up to−4.34%.This finding demonstrates the importance of the accurate characterization of FLCPR in developing a Mueller matrix polarizer. 展开更多
关键词 ferroelectric liquid crystal polarization rotator(FLCPR) dual liquid crystal Mueller matrix polarizer design and optimization
Developing a Novel Approach for Sludge Treatment Using Microwaves Technology 认领
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作者 David Yu Wendy Li 《地球科学和环境保护期刊(英文)》 2020年第5期195-203,共9页
The purpose of this research is to find a method that can improve the cost and efficiency of sludge treatment. Currently, large amounts of sludge are produced every day, but sludge treatment is neither efficient nor p... The purpose of this research is to find a method that can improve the cost and efficiency of sludge treatment. Currently, large amounts of sludge are produced every day, but sludge treatment is neither efficient nor profitable. To improve the sludge treatment process, we proposed the method of using microwave technology to treat sludge. We hypothesized that using microwave technology, we can reduce the volume of the sludge up to 90%, and can save more energy and time comparing to the traditional methods that we are currently using to treat the sludge. To prove our hypothesis, we designed an experiment to compare the solid-liquid boundary height and the solid-liquid mass ratio of the sludge treated by the conventional method and the microwave technology. Prime temperature and time found for dewatering sludge are 70 Celsius degrees and five minutes. The results were rather surprising, as microwave heating demonstrated no significant advantage over conventional heating. The solid-liquid boundary height of sludge heated by conventional and by microwave methods are 22.34 mL and 22.56 mL;the solid-liquid mass ratio of sludge using conventional heating and microwave heating at 70 Celsius degrees are 14.28% and 14.55% (by separation with filter press), or 9.82% and 9.89% (by centrifugation). In conclusion, the difference is negligible. 展开更多
关键词 MUNICIPAL SEWER SLUDGE SLUDGE DEWATERING Microwave Treatment INTRACELLULAR Water Thermal CONDITIONING Solid Liquid Separation
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文章速递亚低温液体与常温液体对高温高湿环境下失血性休克大鼠复苏效果的对照研究 认领
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作者 施冬冬 陈前芬 +2 位作者 覃燕律 武贵林 陈伯成 《世界最新医学信息文摘》 2020年第43期186-187,192,共3页
目的探讨亚低温液体与常温液体对高温高湿环境下失血性休克(Hemorrhagic shock,HS)大鼠的复苏效果.方法将24只3月龄大鼠采用改良Wigger's法制作高温高湿环境下失血性休克模型,随机等分为对照组和观察组,对照组采用常温(23±1.5... 目的探讨亚低温液体与常温液体对高温高湿环境下失血性休克(Hemorrhagic shock,HS)大鼠的复苏效果.方法将24只3月龄大鼠采用改良Wigger's法制作高温高湿环境下失血性休克模型,随机等分为对照组和观察组,对照组采用常温(23±1.5)℃液体进行复苏,观察组采用亚低温(12±1.5)℃液体复苏,记录两组大鼠液体复苏后3h存活时间(min)、存活率(%)、30min时的血清乳酸(Lacticacid,LD)值,热暴露开始(0min),每隔10min监测直肠温度(℃),记录两组大鼠60min内温度变化.结果(1)观察组HS大鼠平均存活时间为(147.08±13.60)min高于对照组平均存活时间(85.44±21.44)min,差异有统计学意义(P<0.05);观察组大鼠复苏后3h存活率为83.3%优于常温液体组3h存活率33.3%,差异有统计学意义(P<0.05).(2)复苏后30min时观察组血清乳酸值为(2.59±0.50)pg/mL较对照组(4.75±0.95)pg/mL低,差异有统计学意义(P<0.05).(3)在热暴露60min内,两组大鼠体温都随时间延迟逐渐上升,观察组体温上升幅度低于对照组(P<0.05).结论高温高湿环境下亚低温液体治疗HS大鼠的复苏效果优于常温液体组. 展开更多
关键词 高温高湿 失血性休克 液体 复苏
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文章速递Phase equilibria of low-Ni side in Nb-Ni-Ti system at 1100℃ 认领
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作者 Hong-Xiao Li Zhi-Chao Li +2 位作者 Yu-Ping Ren Min Jiang Gao-Wu Qin 《稀有金属:英文版》 SCIE EI CAS CSCD 2020年第8期936-941,共6页
The phase equilibria related to liquid phase in low-Ni side of Nb-Ni-Ti system at 1100℃were investigated through scanning electron microscope(SEM),electron probe micro-analyzer(EPMA),X-ray diffraction(XRD)and differe... The phase equilibria related to liquid phase in low-Ni side of Nb-Ni-Ti system at 1100℃were investigated through scanning electron microscope(SEM),electron probe micro-analyzer(EPMA),X-ray diffraction(XRD)and differential scanning calorimetry(DSC).The results show that there exists liquid phase in equilibrium with continuous solid solution(Nb,βTi)and compound TiNi in low-Ni side of Nb-Ni-Ti system at 1100℃.The liquid phase region originates from low-Ni side of binary TiNi system and extends to 9.4 at%Nb in isothermal section of Nb-Ni-Ti phase diagram.The solid solubility of Nb in binary compound TiNi is about 10.6 at%.At 1100℃,there exist two three-phase regions consisting of liquid+(Nb,βTi)+TiNi and(Nb,βTi)+TiNi+X_B in Nb-Ni-Ti system,where X_B is the compound with hexagonal structure and composition of 32.8 Nb-44.5 Ni-22.7 Ti.The wide two-phase region(Nb,βTi)+TiNi exists between these two three-phase regions.In this two-phase region,Ti content in continuous solid solution(Nb,βTi)varies from6.6 at%to 25.7 at%,but Ni content is almost the same,which is about 4.0 at%.The eutectic transformation L■(Nb,βTi)+TiNi takes place at about 1138℃in Nb-Ni-Ti ternary system. 展开更多
关键词 Nb-Ni-Ti system Phase equilibrium Liquid phase Solid solubility
文章速递Comparative study on pyrolysis of bamboo in microwave pyrolysis-reforming reaction by binary compound impregnation and chemical liquid deposition modified HZSM-5 认领
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作者 Haoran Du Zhaoping Zhong +2 位作者 Bo Zhang Kun Shi Zhaoying Li 《环境科学学报:英文版》 SCIE EI CAS CSCD 2020年第8期186-196,共11页
The deactivation of catalyst is a significant reason for its limited application during the catalytic fast pyrolysis(CFP)process.To reduce the coke formation,binary compound impregnation(BCI)and chemical liquid deposi... The deactivation of catalyst is a significant reason for its limited application during the catalytic fast pyrolysis(CFP)process.To reduce the coke formation,binary compound impregnation(BCI)and chemical liquid deposition(CLD)were used to modify HZSM-5 catalysts.At the same time,the self-designed microwave reactor separated the pyrolysis of bamboo and catalytic upgrading of primary vapor,which made the catalytic effect more thorough.Experimental results indicated that CLD used TiO 2 deposition to cover external acid sites,while BCI by phosphorus-nickel could cover and partly destroy superficial acid sites through two different ways.Within the scope of the loaded amount studied,the yield of aromatic hydrocarbons in the oil phase increased at first and then decreased,while the coke formation reduced continuously.BTX(benzene,toluene and xylene),the most valuable product in bio-oil,drastically increased by 39.1%and 22.6%respectively over the CLD and BCI modified catalysts.Considering the catalytic performance as well as cost,CLD over HZSM-5 has more advantages in the CFP process to upgrade bio-oil. 展开更多
关键词 Bamboo Modified HZSM-5 Microwave Binary compound impregnation Chemical liquid deposition
文章速递浅谈洗碗机专用液体洗涤剂的特点及发展趋势 认领
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作者 祝立轩 《中国洗涤用品工业》 2020年第9期146-149,共4页
介绍了目前家用洗碗机专用液体型洗涤剂产品的现状,以及和粉末状、块状洗碗机清洁剂相比之下,洗碗液的特点和优势,从用户使用的角度分析了洗碗液的发展趋势。
关键词 液体 家用 专用 洗涤剂 趋势
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文章速递Differentiation of Chemisorption and Physisorption of Carbon Dioxide on Imidazolium-type Poly(ionic liquid)Brushes 认领
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作者 张东豫 QU Rong +1 位作者 ZHANG Haining 张方方 《武汉理工大学学报:材料科学英文版》 SCIE EI CAS 2020年第4期750-757,共8页
Amine-functionalized imidazolium-based poly(ionic liquid)brushes on mesoporous silica were synthesized via"grafting through"technique and were applied as model sorbents to understand physisorption and chemis... Amine-functionalized imidazolium-based poly(ionic liquid)brushes on mesoporous silica were synthesized via"grafting through"technique and were applied as model sorbents to understand physisorption and chemisorption of carbon dioxide molecules.The experimental results reveal that the total adsorption capacity of model sorbents derived from temperature programmed desorption(TPD)approach reaches 1.72 mmol·g^-1 that is much higher than the sum of adsorption capacity of bare mesoporous silica and free polymers at 25℃under carbon dioxide partial pressure of 0.2 bar.The proposed physical adsorption and chemical adsorption of carbon dioxide molecules in TPD response curves were validated by volumetric desorption measurement.It is also observed that physical adsorption is completely reversible and chemical adsorption is irreversible.The results demonstrate that the temperature programmed desorption technique is an effective approach to differentiate chemisorption and physisorption of gaseous species on solid sorbents,which is beneficial for understanding of adsorption mechanism and materials design. 展开更多
关键词 adsorption surface-attachment poly(ionic liquid) grafting through carbon dioxide
文章速递Homeotropic Alignment and Selective Adsorption of Nanoporous Polymer Film Polymerized from Hydrogen-bonded Liquid Crystal 认领
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作者 An-Qi Xiao Xiao-Lin Lyu +4 位作者 Hong-Bing Pan Zhe-Hao Tang Wei Zhang Zhi-Hao Shen Xing-He Fan 《高分子科学:英文版》 SCIE CAS CSCD 2020年第11期1185-1191,I0006,共8页
Nano porous polymer film with a hexagonal colum nar(Coln)structure was fabricated by templated hydroge n-bonding discotic liquid crystals containing methacrylate functional group.The supramolecular hydrogen-bonded com... Nano porous polymer film with a hexagonal colum nar(Coln)structure was fabricated by templated hydroge n-bonding discotic liquid crystals containing methacrylate functional group.The supramolecular hydrogen-bonded complex T3Ph-L is composed of a 1,3/5-tris(1Hbenzo[d]imidazol-2-yl)benzene(T3Ph)core molecule as the hydrogen-bonding acceptor and 3,4,5-tris((11-(methacryloyloxy)undecyl)oxy)benzoic acid(L)peripheral molecules as donors.And the Colh structure is always retained after self-assembly,photo-crosslinking,and removal of the template T3Ph.The nanoporous polymer film can retain the Colh phase even under the dry condition,which indicates more possibilities for practical applicati ons.After chemical modificati on of the inner wall of the nano pores,the nan oporous polymer film with pores of about 1 nm selectively adsorbs ionic dyes,and the adsorption process is spontaneous and exothermic in nature.Homeotropic alignment can be obtained when the blend complex was sandwiched between two modified glasses after annealing by slow cooling,which shows that the nanoporous polymer film has potential in applications such as nanofiltration. 展开更多
关键词 Liquid crystal Hydrogen bonding Homeotropic alignment Nanoporous polymer film Selective adsorption
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