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为优化平面回转筛的结构和工艺参数，提高组合清理筛的筛分处理量和筛分效率，采用离散元软件EDEM对组合清理筛的平面回转筛分过程进行模拟仿真，探究颗粒在筛分过程中的运动规律，并仿真分析了回转半径、回转速度和筛面倾角对组合清理筛筛分处理量和筛分效率的影响。结果表明，提高回转半径、回转速度和筛面倾角均可提高组合清理筛筛分处理量，但会降低筛分效率（物料提取率和除杂率）。在回转速度为420 r/min左右、回转半径为20 mm左右、筛面倾角为7°~ 9°时，组合清理筛的筛分效率较好，筛分处理量也较大。In order to optimize the structure and process parameters of the rotary sieve classifier and improve the screening capacity and screening efficiency of the combined cleaning screen, the discrete element software EDEM was used to simulate the rotary screening process of the combined cleaning screen. The movement pattern of particles in the screening process was explored, and the effects of the radius of rotation, the rotation speed and the inclination angle of the screen surface on the screening capacity and screening efficiency of the combined cleaning screen were simulately analyzed. The results showed that increasing the radius of rotation, rotation speed and inclination angle of the screen surface could increase the screening capacity of the combined cleaning screen, but reduced the screening efficiency (material extraction rate and impurity removal rate). When the rotary speed was about 420 r/min, the radius of rotation was about 20 mm, and the inclination angle of the screen surface was 7°-9°, the screening efficiency of the combined cleaning screen was better, and the screening capacity was also larger.

区域电网的黑启动能力是电力系统安全运行的重要保障之一。随着风电和光伏发电在系统中占比越来越高，特别对于风电装机占比高但水电少、甚至无水电的地区，风电结合储能能否作为黑启动电源受到研究者关注。结合黑启动方案规范，设计了基于多储能系统的风电场黑启动方案，提出风-储联合系统黑启动过程的4个主要阶段，并提出以持续有效出力概率计算风电汇集地区全年能满足黑启动的时段占比，衡量地区风电黑启动成功概率。最后基于PSCAD对简化的风-储联合系统仿真储能自启动、风电场启动及火电机组辅机启动3个过程，初步从暂态层面验证了风-储联合系统黑启动的可行性。

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 Chinese Journal of Oncology is the property of Chinese Journal of Oncology / Zhonghua Zhongliu Zazhi 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 Food & Fermentation Industries is the property of Food & Fermentation Industries 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 Prevention & Treatment For Stomatological Diseases is the property of Journal of Prevention & Treatment For Stomatological Diseases 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.)

We present predictions for the high-redshift halo–galaxy–supermassive black hole (SMBH) connection from the Trinity model. Matching a comprehensive compilation of galaxy (0 ≤ z ≤ 13) and SMBH data sets (0 ≤ z ≤ 6.5), Trinity finds: (1) The number of SMBHs with M • > 109 M⊙ in the observable Universe increases by five orders of magnitude from z ∼ 10 to z ∼ 2, and by another factor of ∼3 from z ∼ 2 to z  = 0; (2) The M • > 109 and 1010 M⊙ SMBHs at z ∼ 6 live in haloes with ∼(2 − 3) and (3 − 5) × 1012 M⊙; (3) the newly discovered JWST AGN candidates at 7 ≲ z ≲ 11 are overmassive compared to the intrinsic SMBH mass–galaxy mass relation from Trinity , but they are still broadly consistent with Trinity predictions for flux limited AGN samples with Lauer bias. This bias favours the detection for overmassive SMBHs due to higher luminosities at a fixed Eddington ratio. However UHZ1's M •/ M * ratio is still some 1 dex higher than Trinity AGNs, indicating a discrepancy; (4) Trinity underpredicts the number densities of GN-z11 and CEERS_1019 analogues. But given the strong constraints from existing data in Trinity , the extra constraint from GN-z11 and CEERS_1019 does not significantly change trinity model results. (5) z  = 6–10 quasar luminosity functions will reduce uncertainties in the trinity prediction of the z  = 6–10 SMBH mass–galaxy mass relation by up to ∼0.5 dex. These luminosity functions will be available with future telescopes, such as Roman and Euclid. [ABSTRACT FROM AUTHOR]

In this study, four light models including rectangular hyperbola model, non-rectangular hyperbolic model, modified rectangular hyperbolic model and exponential model were jointly adopted to evaluate the photosynthetic parameters and light response fitting curves of six Callicarpa Linn. species in southern subtropical regions. By comparison of the light saturation point (LSP), light compensation point (LCP), maximum net photosynthetic rate (P), dark respiration rate (R) and apparent quantum efficiency (AQE), as well as the coefficient of determination (R), root mean square error (RMSE) and mean absolute error (MAE) derived from the four models, the most suitable light response models for these six plants were obtained. The results demonstrated that the modified rectangular hyperbolic model performed the best fitting ability for the photosynthetic study of the six Callicarpa species, and the highest light utilization ability under both strong and weak light belonged to C. formosana, and the highest photosynthetic efficiency was found in C. japonica var. Luxurians. In summary, these six Callicarpa species showed both interspecific variability and interspecific similarity in light utilization capacity, and the four light response models differed greatly in the calculation of the photosynthetic potential, however, there was consistency in the model's goodness-of-fit and fitting accuracy. [ABSTRACT FROM AUTHOR]

Copyright of Bearing is the property of Bearing 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 Application Research of Computers / Jisuanji Yingyong Yanjiu is the property of Application Research of Computers Edition 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.)

In order to investigate the effects of freeze-thaw action on physical and mechanical properties and internal fracture damage of sandstone, freeze-thaw cycle tests were carried out on sandstone at different temperature range, and acoustic emission tests were carried out on freeze-thaw damaged rocks under uniaxial loading, so as to study the influence of freeze-thaw temperature range on physical and mechanical parameters and acoustic emission characteristics of rock. The results show that the temperature range increases with the freeze-thaw cycle, the mass loss rate and the change rate of P-wave velocity on the whole show a trend of first steep and then slowly rising, declining peak intensity and peak strain of the sandstone gradually increase, the uniaxial compressive strength and elastic modulus decreases, and the same freezing and thawing temperature range of the influence of elastic modulus under uniaxial compressive strength is more significant, and Poisson's ratio shows a trend of gradual increase. With the increase of freeze-thaw temperature range, the acoustic emission ringing count showed a gradual increasing trend, the cumulative ringing count gradually steepened, the silence period became smaller, the acoustic emission distribution time range gradually decreased, and the peak frequency showed a trend of low frequency development. The research results provide experimental basis for predicting engineering stability of rock mass in cold area. [ABSTRACT FROM AUTHOR]

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Copyright of China Rural Water & Hydropower is the property of China Rural Water & Hydropower 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 National University of Defense Technology / Guofang Keji Daxue Xuebao is the property of NUDT Press 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 effect of dihydroartemisinin (DHC) on the proliferation capacity of human oral squamous carcinoma cells and its mechanism of action. Methods The viability and colony formation ability of CAL27 cells treated with different concentrations of dihydroartemisinin was measured by CCK-8 and colony formation assay. The expression of proteins related to proliferation and autophagy was determined by Western blot. Potential targets for DHA inhibition of the biological behavior of oral cancer were screened based on network pharmacology and bioinformatics. Measurement was conducted after the cells were cotreated with autophagy blocker 3-methyladenine and autophagy inducers rapamycin and dihydroartemisinin. Results Dihydroartemisinin significantly reduced the proliferation viability and clone formation ability of CAL27 cells in a concentration-dependent manner. The PCNA expression level also decreased substantially. DHA suppressed oral cancer targets involving autophagy-related pathways. DHA intervention increased the expression of intracellular autophagy-related proteins Beclin-1 and LC3. After co-treatment of DHA combined with autophagy blocker, the proliferation viability and clone formation ability of CAL27 cells decreased. The expression of PCNA increased, and the expression of Beclin-1 and LC3 decreased. Conclusion Dihydroartemisinin could inhibit the proliferative capacity of oral squamous carcinoma cells in vitro, and its effect may be correlated with the induction of autophagy. [ABSTRACT FROM AUTHOR]

Copyright of Nonferrous Metals Engineering is the property of Beijing Research Institute of Mining & Metallurgy Technology Group 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 Agricultural Resources & Environment / Nongye Ziyuan yu Huanjing Xuebao is the property of Journal of Agricultural Resources & Environment 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.)

Copyright of Journal of Ordnance Equipment Engineering is the property of Chongqing University of Technology 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.)

Human engineering activities often lead to slope disasters, significantly impacting the safety of construction personnel and project progress. To obtain real-time status information of slopes, based on optoelectronic joint monitoring technology, multi-field neural sensing such as slope deformation, temperature, seepage, and geoelectricity was carried out to grasp the spatiotemporal continuous state of slopes accurately. By citing technologies such as the internet of things, big data, and artificial intelligence, data cleaning, association mining, and clustering analysis were carried out on multi-fields of information to identify control factors that affect slope stability and analyze the superposition effect of each control factor. On this basis, a slope multi-field safety guarantee system that integrates anomaly perception, information transmission, data processing, and decision warning was established. To identify, evaluate, and warn the potential slope risks, then the scientific decisions and implement emergency plans were made, which provided a reference basis for ensuring the safety of slope engineering, disaster prevention and reduction. [ABSTRACT FROM AUTHOR]

Most remote sensing image data is inevitably contaminated by clouds, resulting in data failure. Therefore, detecting clouds is a necessary preprocessing step. With the rapid development of space technology, more portable satellites have been designed to equip these micro satellites with remote sensing image preprocessing models. Designing a high-precision and low computational power requirement lightweight cloud and cloud shadow detection network model is of great significance. In response to the above issues, a lightweight M-shaped network (L-MNet) based on deep separable convolution was proposed. The L-MNet network model was introduced depthwise separable convolution (DS-Conv) on the basis of the M-shaped network (M-Net) model. A depthwise separable convolutional block (DS Conv Block) was designed to reduce the complexity and computational complexity of the algorithm. The results show that the proposed method can effectively reduce the model size and computational complexity of pixel level cloud detection while ensuring detection accuracy, and is helpful in achieving the task of small satellite in orbit cloud detection. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal 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.)

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Copyright of Journal of Engineering for Thermal Energy & Power / Reneng Dongli Gongcheng is the property of Journal of Engineering for Thermal Energy & Power 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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Copyright of Journal of Agricultural Science & Technology (1008-0864) is the property of Journal of Agricultural Science & Technology 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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