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随着物联网的快速发展，传统的以云计算为中心的数据处理方式显现出诸多问题，如带宽占用大、高时延等。而边缘计算以低时延、高可靠的数据处理方式成为云计算的有利补充。主要对面向云边协同的 KubeEdge边缘计算系统及其应用展开全面的讨论与分析。首先对KubeEdge边缘计算系统的架构、功能、关键技术进行了详细的介绍；其次将KubeEdge边缘计算系统应用于双臂协作机器人零部件装配的场景，对面向机器人装配场景的 KubeEdge 云边协同系统的功能和性能进行了全面、系统的分析与测试。测试结果显示，基于云边协同的KubeEdge边缘计算系统可以较好地满足机器人零部件装配场景的功能和应用需求，为KubeEdge边缘计算系统的实际应用提供了基础参考。

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This paper takes degassed heavy oil in Liaohe oilfield as the research object, by compounding anionic, non-ionic surfactants, and alkaline agents, studied its viscosity reducing effect on heavy oil and the dynamic stability of emulsion. The optimal compounding system was selected and the effects of interfacial tension and droplet size on the stability of emulsions in compounding systems were investigated from a microscopic point of view. The results showed that all the four single surfactants reduced the viscosity of heavy oil emulsions, among which sodium oleate had significant viscosity reduction effect, but the stability is slightly poor. In the binary compounding system, the solute ratio of sodium oleate to APE-9 is 6: 1, with the best synergistic effect, heavy oil emulsions not only reduces viscosity but also improves stability, and the viscosity reduction rate continues to be above 97%. In ternary system, the addition of Na2CO3 further reduces the interfaeial tension and increases the droplet size of the emulsion, exhibiting excellent dynamic stability. [ABSTRACT FROM AUTHOR]

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Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This study aims to explore the influence of water extraction and system configuration on the performance of photovoltaic pumps. The water extraction system was required for the high efficiency, high utilization rate of solar energy, and cost saving in the photovoltaic pump. The circulating water extraction was also selected to improve the conversion efficiency of the photovoltaic module, the pump operation efficiency, and pipeline efficiency under different irradiation intensities, valve opening, and water extraction height. The flow model was then constructed. The irradiation intensity data that was monitored in 2022 was partitioned to calculate the proportion of radiation intensity in each partition using the flow model. The amount of water extraction was calculated to evaluate the parameters of the system in each range of radiation intensity under different heights. The optimal height of water extraction was then determined, according to the overall efficiency of the water extraction system and the utilization rate of solar energy. There was an increase in the area of photovoltaic modules and the number of reservoirs. The utilization rate of solar energy was improved in the water-lifting system, where the cost was reduced significantly. The optimal area of photovoltaic modules and the number of reservoirs were obtained at the lowest cost of the water-lifting system. The results show that there was a significant relationship between the utilization efficiency of photovoltaic modules and the irradiation intensity. Some variations were also found in the pump operation efficiency with the irradiation intensity and valve opening, in order to determine the high-efficient operation interval of the photovoltaic pump and the valve opening. At the same time, the optimal height of water lifting was determined as 20 m in the photovoltaic pump, according to the utilization rate of solar energy and the overall efficiency. Meanwhile, the utilization rate of solar energy was 65.05 %, the overall utilization efficiency was 4.521%, and the water lifting cost was 0.151 yuan/m3. The optimal height of water lifting was utilized to clarify the influence of the increasing area of photovoltaic panels and the number of reservoirs on the utilization rate of solar energy and water lifting cost. Once the water lifting cost was the lowest, the area of photovoltaic panels, water lifting cost, and solar energy utilization rate were 3.71 m2, 0.151 yuan/m3 and 90.83%, respectively. When the number of reservoirs was 4, the water lifting cost and solar energy utilization rate were 0.145 yuan/m3 and 94.62%, respectively. Therefore, the increasing area of photovoltaic panels and the number of reservoirs greatly contributed to the cost saving of water lifting and the solar energy utilization rate. There was the application range and complementary relationship between valve opening and opening/closing under different irradiation intensities. Two application scenarios were introduced to improve the solar energy utilization rate. The finding can provide new ideas to optimize and apply the photovoltaic water pumping. [ABSTRACT FROM AUTHOR]

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Stannous sulfide (SnS) is a class Ⅳ-Ⅵ layered compound semiconductor material. It's band gap is very close to the optimal band gap of 1. 5 eV for solar cells, and the light absorption coefficient is very large (α > 104 cm-1) in the visible light range, so it is a promising material for application. The MoS2 / SnS heterojunction solar cells were simulated by using the solar cell simulation software wxAMPS. The influence of SnS absorption layer thickness, doping concentration and defect states on the performance of solar cells were mainly studied. The results show that the optimal thickness of SnS absorption layer is 2 μm, the optimal doping concentration is 1. 0 × 1015 cm-3, and when the concentration of Gaussian defect states is more than 1. 0 × 1015 cm-3, the performance parameters of the cell decrease with the increase of concentration. However, when the concentration of tail defect states exceeds 1. 0 × 1019 cm-3 ·eV-1, the performance of solar cell decreases. The interface defect states have obvious influence on the solar cell performance, when the concentration exceeds 1. 0 × 1012 cm-2, the open circuit voltage, short circuit current, filling factor and conversion efficiency decrease rapidly. In addition, the optimal conversion efficiency is 24. 87%, the open circuit voltage is 0. 88 V, and the short circuit current is 33. 4 mA/ cm². It can be concluded that MoS2 / SnS heterojunction solar cell is a promising photovoltaic device structure. [ABSTRACT FROM AUTHOR]

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Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Henan Agricultural Sciences is the property of Editorial Board of Journal of Henan Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao is the property of Chinese Journal of Applied Ecology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: To investigate the feasibility and safety of lvarian-conserving surgery for ovarian hyperirritant syndrome combined with ovarian pedicle torsion during pregnancy. Methods: laparoscopic lvarian-conserving surgery was performed for 9 cases of ovarian hyperstimulation syndrome complicated with ovarian pedicle torsion during pregnancy, who were admitted to 174 th Hospital of Chinese people’s Liberation Army from January 2010 to December 2017. The onset time, ovarian torsion, operation time,intraoperative bleeding volume, postoperative complications and pregnancy outcome of the patients were observed. Results: There were no obvious complications in 9 patients, and the pregnancy outcomes were good in 9 patients, including 8 patients with full term birth and 1 patient premature birth. Conclusion: Laparoscopic lvarian-conserving surgery is a safe and feasible operation for ovarian hyperirritant syndrome combined with ovarian pedicle torsion during pregnancy, with little influence on maintaining pregnancy and reproductive function and low postoperative complications. [ABSTRACT FROM AUTHOR]

目的观察癫痫患者血清氧化应激水平变化,探讨其与癫痫发作严重程度的相关性。方法癫痫患者68例(癫痫组)、体检健康者60例(对照组),采集晨起空腹肘静脉血,采用比色法检测血清丙二醛(MDA)、超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、谷胱甘肽过氧化物酶(GSH-Px),比较两组血清MDA、SOD、CAT、GSH-px水平。依据癫痫不同发作类型,将癫痫组分为全身强直阵挛发作组(28例)、部分性发作组(38例),比较两组血清MDA、SOD、CAT、GSH-px水平。依据口服抗癫痫药物种类的不同,将癫痫组分为卡马西平单药治疗组(17例)、丙戊酸钠单药治疗组(32例),比较两组血清MDA、SOD、CAT、GSH-px水平。采用国立医院癫痫发作严重程度量表(NHS3)对癫痫组患者癫痫发作严重程度进行评价,Pearson相关分析法分析癫痫患者血清MDA、SOD、CAT、GSH-px水平与癫痫发作严重程度的相关性。结果癫痫组血清MDA、SOD、CAT、GSH-px水平分别为(6. 82±3. 03)μmol/L、(76. 80±16. 01) U/m L、(6. 51±1. 86) U/m L、(91. 09±10. 50) U/m L,对照组分别为(5. 14±1. 95)μmol/L、(83. 26±12. 05) U/m L、(7. 77±1. 40) U/m L、(111. 18±8. 51) U/m L,两组相比,P均<0. 05。全身强直阵挛发作组、部分性发作组血清MDA、SOD、CAT、GSH-px水平差异无统计学意义(P均>0. 05),卡马西平单药治疗组、丙戊酸钠单药治疗组血清MDA、SOD、CAT、GSH-px水平差异无统计学意义(P均>0. 05)。癫痫患者血清MDA水平与NHS3评分呈正相关(r=0. 299,P <0. 05),癫痫患者血清SOD CAT GSH-px水平与NHS3评分无关(P均> 0. 05)。结论癫痫患者血清MDA水平增高,SOD、CAT、GSH-px水平降低,这种变化与发作类型、口服抗癫痫药物种类无关。癫痫患者血清MDA水平与癫痫发作严重程度呈正相关关系,而血清SOD、CAT、GSH-px水平与癫痫发作严重程度无关. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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