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Copyright of Journal of Jilin University (Science Edition) / Jilin Daxue Xuebao (Lixue Ban) is the property of Zhongguo Xue shu qi Kan (Guang Pan Ban) Dian zi Za zhi She 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 Experimental Technology & Management is the property of Experimental Technology & Management Editorial Office 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 Food Safety & Quality is the property of Journal of Food Safety & Quality 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 CT Theory & Applications is the property of Editorial Department of CT Theory & Applications 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.)

目的 探讨某二乙综合性医院2018-2022年出院患者疾病谱变化情况, 为加强疾病专科建设, 推进医疗资源扩容提质, 提高医疗卫生服务能力, 打造高水平医院提供参考依据。方法 从该院电子病历系统中导出2018年1与1日至2022年12月31日住院患者病案首页信息, 主要包括性别、年龄、出院科室、出院日期、主要诊断及编码等信息, 用Excel软件、R软件进行分类整理及统计分析, 对不同年份、性别、季度和年龄出院患者疾病构成差异性进行比较, 采用Cox-Stuart趋势检验和χ~2检验分析。结果 循环系统疾病5年内一直稳居疾病谱顺位第一, 呼吸系统疾病顺位排名呈逐年上升至稳居第二, ≥60岁患者第一顺位疾病是循环系统疾病, 可见循环系统和呼吸系统疾病是影响当地患者健康状况的主要疾病。结论 根据疾病谱顺位关注人群健康, 优化配置医疗资源, 提高医疗卫生服务能力, 打造高水平医院。 [ABSTRACT FROM AUTHOR]

Copyright of Laser Technology is the property of Gai Kan Bian Wei Hui 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.)

目的 建立咳喘药学服务门诊用药教育工作模式,对咳喘患者进行规范的用药指导,观察药学 服务门诊用药教育工作模式的临床应用效果。方法 选取2021年9月至2023年9月在该院咳喘药学服务门 诊就诊需使用吸入制剂的219例患者作为观察对象,均采用用药教育工作模式进行用药指导,并随访3个月, 于指导前后均采用慢性阻塞性肺疾病评估测试问卷(CAT)、哮喘控制测试问卷(ACT)及 Morisky用药依从性 量表(MMAS-8)评分评估患者用药情况。随机抽取5名临床药师在建立用药教育工作模式前后进行业务水平 的考核,包括用药指导、用药准则、处方审核等方面。结果 随访3个月后,患者的 CAT、ACT、MMAS-8均显 著优于随访前,差异有统计学意义(P<0.05)。建立用药教育工作模式后,临床药师的用药指导、用药准则、处 方审核等业务水平均较建立前提高,差异有统计学意义(P<0.05)。结论 临床药师通过咳喘药学服务门诊为 患者提供优质药学服务,极大提高了患者用药依从性和吸入制剂正确使用率,从而保证药物治疗效果最大化。 此外,咳喘药学服务门诊的开设对于提高临床药师素质和规范用药指导也具有重要意义。 [ABSTRACT FROM AUTHOR]

Copyright of Journal of Shenyang Agricultural University is the property of Journal of Shenyang Agricultural University 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.)

Simply assembled Chinese solar greenhouses (SA-CSG) have been widely used in northern China in recent years, due to their simple construction and better thermal insulation. Among them, the wall of SA-CSG is made of the thermal blanket in a general way, indicating better insulation performance, but a relatively low capacity of thermal storage. The heat load of SA-CSG can be normally higher than that of the traditional Chinese solar greenhouses (CSG). An accurate calculation of heat load and heating requirement in winter can greatly contribute to assessing regional adaptability. In this study, 17 cities in China were selected to analyze the local climate and scale of CSG development. The total solar radiation from October to next February and the lowest air temperature outdoor in winter were extracted using the downloading data from China Meteorological Data Network. The heat balance equations and thermal environment simulation software RGWS-RHJPJ V1.2 were used to calculate the winter solstice heating requirement and the heat load at the lowest outdoor temperature in the coldest month for SA-CSG in 17 cities. The local sensitivity analysis was also carried out to determine the influencing parameters on the heat load of the SA-CSG. Furthermore, the heating requirement was analyzed to select an active heat storage and release system as the heating source for the SA-CSG. The results showed that the minimum heat load of SA-CSG occurred in Nanjing at 56.4 W/m², whereas, the maximum was found in Altay at 140.9 W/m², among 17 cities in the CSG production area of China. The city with the minimum SA-CSG heating requirement on the day of the winter solstice was Lhasa with 0.7 MJ/m², and the maximum heating requirement was in Harbin with 7.7 MJ/m². The heat load of SA-CSG was in the range of 50~150 W/m², where the ratio ranging from 50 to 100 W/m² was more than 50%. The heating requirement of SA-CSG ranging from 0-2 MJ/m² was about 20% of the regions, 2-4 MJ/m² was about 50% of the regions, 4-6 MJ/m² was about 20% of the regions, and only about 10% of the regions were in the heating requirement of more than 6 MJ/m². As such, the heat load increased with the latitude of the city. The influencing parameters on the heat load of SA-CSG were ranked in the descending order of the integrated heat transfer coefficient of the thermal blanket on the south roof, the number of air changes in the SA-CSG, and the integrated heat transfer coefficient of the thermal blanket as the wall. The active heat storage and release system fully satisfied the heating requirement of the SA-CSG in Lasa and Changdu. At the same time, the active storage and release system satisfied with 50% of the greenhouse heating requirement in Shouguang, Beijing, Hotan, Xi'an, and Xining. By contrast, less than 30% was found in Shenyang, Altay and Harbin. There were large regional disparities in the heat load and heating requirement of the SA-CSG in the CSG production areas. Similar regional disparities were found in the application effect of active heat storage system. The finding can also provide some guidance to constructing the heating design of SA-CSG in China. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Clinical Hepatology / Linchuang Gandanbing Zazhi is the property of Journal of Clinical Hepatology 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.)

The unsteady flow of the upper-convected Oldroyd-B fluid over the heated wedge in the presence of velocity slip was discussed. The process of heat transfer and the effect of the thermal retardation time on heat transfer were simulated with the relaxation-retardation heat flux model. The buoyancy, the thermal radiation and the convective heat transfer boundary condition were considered to further elucidate the flow and heat transfer characteristics. The homotopy analysis method was used to obtain the approximate analytical solutions to ordinary differential equations. It is found that the magnification of the slip parameter can promote the flow of fluid, and the fluid temperature rises with the thermal radiation parameter. In addition, the temperature field shows opposite trends in the thermal relaxation time and the thermal retardation time. [ABSTRACT FROM AUTHOR]

Much more cultivation layers and high canopy density have posed great challenges to the even distribution of airflow in plant factories. It is highly required for the optimal design of airflow distribution systems, thereby improving the physiological orders and post-harvest quality for a high commercial value of the products. In this study, a ventilation system was designed with the three parallel lines of perforated air tubes, further to generate a constant airflow inside the plant canopy. The air tube was fabricated in a diameter of 0.02 m with a length of 1.5 m using the layout and size of a cultivation shelf. Each air tube was equipped with two rows of jets. A three-dimensional computational fluid dynamics (CFD) model was developed to analyze the distribution of airflow in the plant’s canopy under different inlet velocities. Furthermore, the lettuce leaves were assumed as the porous medium with the drag coefficient of 0.02, resulting in a viscous resistance factor and the inertial resistance factor of 25 and 1.3, respectively. A LED lamp (Ø0.02 m) was assumed as an aluminum substrate and a glass part. An energy term with a constant heat generation of 297 525 W/m3 was also defined as the heat source lost by the volumetric convection from the LED lamp aluminum substrate part for the heat dissipation. The average error of simulated air velocity was 16%, compared with the measured. Three groups of air velocity (lower than 0.1 m/s, between 0.1 and 1.0 m/s, and higher than 1.0 m/s) were selected to calculate the proportion of the areas of the plant’s canopy surface and the volume proportion inside the plant’s canopy. The results showed that the percentage of air velocity at the lettuce canopy surface between 0.1 and 1 m/s increased from 33.33% to 68.57%, while, the percentage of volumes inside the plant’s canopy increased from 44.84% to 77.08%, respectively, when the air velocity increased from 6 to 9 m/s. By contrast, the percentage of volumes inside the plant’s canopy increased from 0.01% to 0.06%, with the air velocity higher than 1.0 m/s. The maximum distance between the ventilation pipe and high airflow increased from 50 to 70 mm. Therefore, the air velocity was recommended as 8 m/s, further to avoid the air velocity higher than 1 m/s plants canopy. At the inlet air flow velocity, the percentage of volumes inside the plant’s canopy with the air velocity between 0.1 and 1 m/s was 67.58%, the percentage of areas on the plant’s canopy surface with the air velocity between 0.1 and 1.0 m/s was 55.23%, and the volume-weighted air velocity in the canopy was 0.14 m/s. This finding can provide a new solution to improve the canopy environment in a plant factory. Much more cultivation layers and high canopy density have posed great challenges to the even distribution of airflow in plant factories. It is highly required for the optimal design of airflow distribution systems, thereby improving the physiological orders and post-harvest quality for a high commercial value of the products. In this study, a ventilation system was designed with the three parallel lines of perforated air tubes, further to generate a constant airflow inside the plant canopy. The air tube was fabricated in a diameter of 0.02 m with a length of 1.5 m using the layout and size of a cultivation shelf. Each air tube was equipped with two rows of jets. A three-dimensional computational fluid dynamics (CFD) model was developed to analyze the distribution of airflow in the plant’s canopy under different inlet velocities. Furthermore, the lettuce leaves were assumed as the porous medium with the drag coefficient of 0.02, resulting in a viscous resistance factor and the inertial resistance factor of 25 and 1.3, respectively. A LED lamp (Ø0.02 m) was assumed as an aluminum substrate and a glass part. An energy term with a constant heat generation of 297 525 W/m3 was also defined as the heat source lost by the volumetric convection from the LED lamp aluminum substrate part for the heat dissipation. The average error of simulated air velocity was 16%, compared with the measured. Three groups of air velocity (lower than 0.1 m/s, between 0.1 and 1.0 m/s, and higher than 1.0 m/s) were selected to calculate the proportion of the areas of the plant’s canopy surface and the volume proportion inside the plant’s canopy. The results showed that the percentage of air velocity at the lettuce canopy surface between 0.1 and 1 m/s increased from 33.33% to 68.57%, while, the percentage of volumes inside the plant’s canopy increased from 44.84% to 77.08%, respectively, when the air velocity increased from 6 to 9 m/s. By contrast, the percentage of volumes inside the plant’s canopy increased from 0.01% to 0.06%, with the air velocity higher than 1.0 m/s. The maximum distance between the ventilation pipe and high airflow increased from 50 to 70 mm. Therefore, the air velocity was recommended as 8 m/s, further to avoid the air velocity higher than 1 m/s plants canopy. At the inlet air flow velocity, the percentage of volumes inside the plant’s canopy with the air velocity between 0.1 and 1 m/s was 67.58%, the percentage of areas on the plant’s canopy surface with the air velocity between 0.1 and 1.0 m/s was 55.23%, and the volume-weighted air velocity in the canopy was 0.14 m/s. This finding can provide a new solution to improve the canopy environment in a plant factory. [ABSTRACT FROM AUTHOR]

LEDs are more commonly used than fluorescent lamps in plant factories with artificial light for energy savings. But the LEDs cannot convert the input power to light at 100 % efficiency. Part of energy can be converted into heat, and then be transferred to the ambient environment, in terms of heat conduction, radiation, and convection. However, heat dissipation of LEDs has become a great challenge, as the power increased while the volume of LEDs reduced. In this study, a circular serrated water-cooled LED was designed to transmit the heat generated by LEDs in time for a longer service life. A three-dimensional computational fluid dynamic (CFD) model was developed to assess the design, where the LED bubbles were set as the internal heat source. The electrical efficiency was assumed to be 32% and 49% in the red (wavelength: 655 nm) and blue (wavelength: 455 nm) LEDs, respectively. The heat flux of 1.7×107 W/m³ was calculated, according to the number of lamp beads and the electrical to light conversion efficiency. The constructed grids were approximately 1162800 for each case, including 220881 nodes with a minimum element size of 2 mm. Much finer meshes were automatically imposed near the bubbles with proximity and curvature size functions in meshing. The SIMPLE was selected for the pressure-velocity coupling. A least-square cell-based scheme was used for the gradient term in spatial discretization. The second-order scheme was applied for the pressure term. The second-order upwind discretization schemes were used for momentum and energy equations, whereas, the first-order upwind discretization schemes were used for turbulence equations, mainly for higher accuracy. The convergence criterion was set as 10-6 on energy and 10-3 on continuity, momentum and viscous terms. Inlet and outlet boundary conditions were set for the numerical solution using the velocity-inlet and pressure-outlet. The inlet water velocity and water temperature were set as 0.2 m/s and 297 K, respectively. The simulated value of the LED water-cooled lamp was close to the measured value, with the maximum error of 16.4%, indicating that the CFD model could accurately simulate the temperature distribution of each structure of the lamp. The validated model was used to simulate the influence of different water flow velocities on the temperature distribution and water flow pressure drop in a water-cooled LED lamp. The results showed that the temperature distribution of bubbles and water flow was relatively uniform, and the structure of the lamp was reasonable. The heat released by the bead chip was quickly transferred into the water flow; when the inlet velocity of the lamp increased from 0.10 to 0.25 m/s, and the difference of water temperature between the inlet and outlet dropped from 1.4 ℃ to 0.5 ℃. Therefore, a series of connected lamps were calculated, according to the temperature difference between the inlet water and the ambient air, when the water-cooled LED lamps were connected in series. The inlet flow velocity also improved the flow resistance, where the resistance coefficient of lamps to the water flow was 2.2. [ABSTRACT FROM AUTHOR]

Copyright of Forensic Science & Technology is the property of Institute of Forensic Science, Ministry of Public Security 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 International Reproductive Health/Family Planning is the property of Editorial Board of the Journal of International Reproductive Health/Family Planning 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 Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering 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 Experimental Technology & Management is the property of Experimental Technology & Management Editorial Office 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 Telecommunications Science is the property of Beijing Xintong Media Co., Ltd. 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.)

The common south roof materials of Chinese solar greenhouses is transparent plastic film. Generally speaking, they have no significant advantage for adjusting incidence lights of greenhouses. Given that the solar irradiance above the light saturation point is meaningless for plant growth, as in summer, the strong sunlight at noon is surplus, that is, surplus light is unused. In order to improve the efficiency of the solar energy utilization in Chinese solar greenhouses, a separation of direct and diffuse light system based on curved Fresnel lens is established in the non-planting zone on top of the Chinese solar greenhouse. The system uses 25% of the space in the non-planting zone. The sun light is tracked from different angles of incidence, by using optical simulation software, and the receiving efficiency and focal spot distribution of the curved Fresnel lens under typical daily conditions are analyzed to obtain the rule of change within a day. Regarding direct light heat integration test, the heat integration efficiency of the system can reach 45% at noon. The results showed that compared with control group, heating system which was designed could increase the soil ridge temperature by 2.5-5.3 ℃. In the case of continuous sunny days, the COP of heating system was 1.5-1.9. The heating system was composed of Fresnel lens, vacuum tube, water tank, heating pipes under soil ridge and water submersible pump. The experiment was conducted from 16th Dec. 2018 to 16th Feb. 2019. Tomato was used as a model plant in the greenhouse. Compared with the impact of scattered light on plants inside the greenhouse, it is discovered that the illuminance of a whole day in the test area is reduced by 10%-40%. The study shows that the new type of greenhouse heat integration method can enhance space utilization and improve the light and heat inside the greenhouse. Also, heat is integrated by using strong direct light at noon to realize comprehensive utilization of the solar power. Test method: The direct light at the noon perpendicular to the specular surface is concentrated by the curved Fresnel lens and projected on the solar vacuum tube receiver to achieve the photothermal conversion. Part of the scattered light not intercepted by the receiver passes through the lens and falls on the plant blade at the bottom. Both the lens concentrator and the Chinese solar greenhouse are arranged in the east-west direction to receive sunlight, and the Fresnel lens concentrator is suspended in the non-planting zone at the top of the greenhouse using plastic ropes and fixed pulleys. The test system consists of 2 rows of 20-meter-long Fresnel lenses with a total heat collection area of 26 m². The system also includes support mechanisms and receivers. The program can be controlled according to the local latitude, so that the angle between the center line of the curved Fresnel lens and the horizontal line is fixed to the maximum value of the sun's altitude angle of the day. In the experiment, the location was Beijing, which would be 73° on summer solstice and 26.5° on winter solstice. [ABSTRACT FROM AUTHOR]

Copyright of Systems Engineering & Electronics is the property of Journal of Systems Engineering & Electronics 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 International Reproductive Health/Family Planning is the property of Editorial Board of the Journal of International Reproductive Health/Family Planning 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 establish a LC-MS/MS method for the determination of salidroside in the capsule. Methods An electrospray ionization and multiple reaction detection were used to detect negative ion. Theophylline was used as standard. The detection ions of salidroside and theophylline used for quantitative analysis were m/z 299.0→119.0, and m/z 178.8→164.0, respectively. The Shim-pack XR-ODS (3.0 mm×75 mm, 2.0 μm) column was used for separation. The mobile phase was acetonitrile: 5 mmol/L ammonium acetate solution (90∶10, V/V). The flow rate was 0.40 ml/min. The column temperature was 25 ℃. Results The content of salidroside was analyzed within 3 minutes. The linear range was 10 –2 000 ng/ml, and the minimum detection limit was 10 ng/ml. Conclusion The method has good repeatability, high sensitivity, fast analysis speed and simple operation. It can be used as a method for the determination of salidroside in the capsule. It is suitable for the quality inspection of drugs and convenient for safe use. [ABSTRACT FROM AUTHOR]

Copyright of Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering 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 Pharmaceutial Care & Research is the property of Editorial Board of Pharmaceutial Care & Research 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 Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering 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 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.)