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空间关联特性的关联因素过于复杂且难以量化等问题导致短时交通流预测过于依赖时间关联特性。针对这一问题，提出一种考虑时空关联的深度学习短时交通流预测方法。首先，通过构建同时考虑距离、车流流量相似性和车流速度相似性的空间关联性度量函数，量化目标路段与周边关联道路间的空间关联性。然后，构建内嵌长短时记忆神经元的卷积神经网络模型，利用长短时记忆神经元提取数据间的时间关联性，利用空间关联性度量值及交通数据的卷积传输提取数据间的空间关联性，以实现同时考虑时空关联性的交通流预测。实验结果表明，提出的方法能适应工作日和周末等不同交通流特性条件下的短时预测，且与经典方法相比，预测精度更优，在工作日和周末的预测偏差分别为10.45%和12.35%。

文章对动态可重构光分插复用器（ROADM）进行了介绍;对实现ROADM的多种方案进行了归纳整理和简要分析;对其中解复用/开关矩阵/复用（DSM）、DSM波段、广播与选择（B&S）3种典型的ROADM结构进行了较详细的说明。文章作者设计并实现了广播与选择型ROADM,并对实验系统的上/下路功能和信道功率均衡功能进行了验证。

可重构光分插复用（ROADM）设备可以通过软件实现远程节点上、下路和直通波长的配置。文章首先介绍了ROADM设备结构的演进过程,然后通过比较基于波长选择开关（WSS）的结构的ROADM设备,采用不同逻辑实现方式获得了不同特性,最后探讨了WSS的实现技术。

文章介绍了一种基于光通道监测（OCM）和动态通道均衡（DCE）技术的新型动态增益均衡系统,详细说明了其工作原理和算法实现过程。由于采用了新的技术,新型系统拥有动态、实时和高速响应等特性。最后通过实验验证了新型系统的功能和性能。

Copyright of Modern Preventive Medicine is the property of Modern Preventive Medicine 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.)

Fertilizer has been the ever-increasing demand in agricultural production in recent years, particularly with the escalating demand for food. Simultaneously, the low efficiency of nutrient utilization and environmental risks of fertilizers have posed substantial challenges in the world. Alternatively, polymer-coated fertilizers can play a pivotal role in nutrient utilization efficiency, thus reducing the fertilizer application rates and environmental pollution risks. This study aims to improve the membrane materials of typical polymer-coated fertilizers for the high nutrient utilization efficiency in conventional fertilizers. Polyvinyl alcohol (PVA) was also employed as the membrane substrate, in order to relieve the secondary pollution and uncontrollable nutrient release rates. Three types of membranes—PVA/CS membrane, PVA/CS/GA membrane, and PVA/CS/GA/nano SiO2 membrane—were prepared using three methods: blending with chitosan (CS), crosslinking with glutaraldehyde (GA), and incorporating nano SiO2. Additionally, pure PVA membranes were prepared for comparison. The four types of membranes were characterized using scanning electron microscopy (FE-SEM), water absorption (Q), biodegradability (De), and nutrient permeability coefficient (Ps). Results indicated that there were excellent dispersion and compatibility of nano SiO2 in the PVA/CS membrane solution. Furthermore, the biodegradation rates of the four membranes also exhibited gradual increments during the initial 21 days. Subsequently, biodegradation rates escalated rapidly from the 21st to the 56th day, followed by a slower growth rate after the 56th day. The CS was incorporated to enhance the membrane biodegradation rates, while the GA crosslinking contributed to the less membrane biodegradation in soil. However, the addition of nano SiO2 had minimally impacted the membrane biodegradation rates. Overall, all four membranes displayed favorable biodegradability, with the biodegradation rates ranging from 30% to 60% within 77 days. The water absorption of PVA/CS, PVA/CS/GA, and PVA/CS/GA/nano SiO2 membranes decreased by 43.00%, 68.79%, and 82.73%, respectively, compared with the PVA membranes. Furthermore, the nutrient permeability coefficients of PVA/CS/GA and PVA/CS/GA/nano SiO2 membranes decreased by 48.51% and 57.59%, respectively, compared with the PVA/CS membranes. Therefore, the addition of CS, GA crosslinking, and nano SiO2 all contributed to the hydrophobicity of PVA membranes. Four types of coated urea (PCU) particles—PCU-PVA, PCU-PVA/CS, PCU-PVA/CS/GA, and PCU-PVA/CS/GA/nano SiO2—were prepared, where these membrane solutions were applied to the urea particles using a drum coating machine. The nitrogen release behavior was evaluated using the soil burial. The time required for the nitrogen release of the four PCUs to reach 90% varied significantly, recorded at 5, 11, 23, and 28 days, respectively. On the 5th day, the nitrogen released from PCU-PVA was the highest at 90.64%, whereas the lowest was from PCU-PVA/CS/GA/nano SiO2 at 49.32%. The CS, GA crosslinking and nano SiO2 enhanced the membrane hydrophobicity, which in turn reduced the nitrogen release rate. The nitrogen release behavior of all four PCUs followed a first-order kinetic model, with the release rate constants (k) decreasing progressively—0.3 654, 0.2 333, 0.1 127, and 0.0 926, respectively—and correlating linearly with the nutrient permeability coefficient (Ps) of the membranes. The correlation coefficient (R²) was impressively high at 0.9 991. A series of polyvinyl alcohol/chitosan coating materials were introduced with excellent biodegradability and controllable nutrient release rates, suitable for use in polymer-coated fertilizers. These materials were effectively applied in the production of coated urea particles. A first-order kinetic model of PCU nitrogen release was established with the membrane nutrient permeability coefficient as a key parameter, in order to more efficiently and effectively guide the application of PCU. [ABSTRACT FROM AUTHOR]

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.)

Copyright of Shipin Kexue/ Food Science is the property of Food Science 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 Anhui Agricultural Sciences is the property of Journal of Anhui Agricultural Sciences 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 Chinese Journal of Pesticide Science / Nongyaoxue Xuebao is the property of Chinese Journal of Pesticide Science 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 Shandong Medical Journal is the property of Shandong Medical Health Newspapers 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 Anhui Agricultural Sciences is the property of Journal of Anhui Agricultural Sciences 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 Hydrogeology & Engineering Geology / Shuiwendizhi Gongchengdizhi is the property of Hydrogeology & Engineering Geology 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 Science Technology & Engineering is the property of Chinese Society of Technology Economics 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 Obstetrics & Gynecology is the property of TianJin Medical Information Center 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 Distance Education (1672-0008) is the property of Zhejiang Open University 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 Advanced Textile Technology is the property of Zhejiang Sci-Tech University Magazines 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 Urban Architecture & Development is the property of Omniscient Pte. 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.)

Objective To explore the method of elevating and fixing the auricular cartilage scaffold to adjust the overall height of the auricle. Methods A corresponding incision was made behind the ear, and then separate and release the adhesion between the back of the auricular cartilage scaffold and the cranial wall. Several stitches were sewn at the corresponding position on the bottom of the cymba auriculae, and the cartilage scaffold was lifted and fixed on the periosteum of the cranial wall to elevate the cartilage scaffold to normal height or the same height as the contralateral side. Results Sixty-five cases of various deformities of the auricle were clinically treated after 6 to 12 months of follow-up. The height of all other patients' auricles was improved, and the height of both auricles was symmetrical except for one patient with cryptotia deformity who had a loose fixation causing the stent to move down again, three patients with cup ears and two other ear deformities due to the ear being smaller than the normal side. The lifting height of all auricles is (0.6±0.4) cm. The patient satisfaction rate is 87.7%. Conclusion This method can significantly improve the overall height of the auricle while correcting cartilage abnormalities, making the two auricles more symmetrical, and the effect is satisfactory. [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.)

Copyright of Journal of Modern Laboratory Medicine is the property of Journal of Modern Laboratory Medicine 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 Ordnance Industry Automation is the property of Editorial Board for Ordnance Industry Automation 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.)

Efficient recycling and utilization of waste heat from aluminum electrolysis cells is one of the implementation paths for the aluminum electrolysis industry to achieve deep energy conservation and carbon reduction. In response to the technical bottleneck problem of difficult recovery of waste heat on the side of aluminum electrolytic cells, a dedicated heat exchange module for waste heat recovery on the side of the electrolytic cell has been developed. The flow rate of the heat exchange medium in the module has been optimized and controlled, and the heat extraction rate has been adjusted to ensure stable operation of the electrolytic cell without affecting it. The radiant heat on the side of the electrolytic cell shell has been efficiently recovered. The technology was tested in an industrial scale on a 200 kA test cell and the results showed that the overall operation of the aluminum electrolysis cell waste heat recovery system was stable and efficient, with an average heat recovery of 77 734 kJ/h, equivalent to 21.59 kW per hour, 317 kWh per ton of aluminum, and a heat recovery efficiency of 99.71%.The system has achieved stable, efficient, and precise regulation of heat recovery within the range of 18.44-21.59 kW/h, and can optimize and regulate the furnace, which is conducive to the long-term, efficient, and stable production operation of aluminum electrolysis cells. [ABSTRACT FROM AUTHOR]

Copyright of Wool Textile Journal is the property of National Wool Textile Science & Technology Information Center 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 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 Chemical Engineering (China) / Huaxue Gongcheng is the property of Hualu Engineering Science & Technology 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.)

Objective To investigate the predictive value of serum plasminogen activator inhibitor-1(PAI-1) and retinol-binding protein 4(RBP4) levels for patients with acute ST-segment elevation myocardial infarction (STEMI) with‐ out reflow after percutaneous coronary intervention (PCI). Methods Totally 129 STEMI patients were selected as the STEMI group. According to the blood flow grading of thrombolysis therapy after PCI, they were divided into the no-reflow group (38 cases) and the reflow group (91 cases), and 55 healthy subjects were selected as the control group during the same period. Clinical data of STEMI patients were collected, and serum levels of PAI-1 and RBP4 were detected by en‐ zyme-linked immunosorbent assay. The predictive value of serum PAI-1 and RBP4 levels in patients with STEMI without reflow after PCI was analyzed by receiver operating characteristic (ROC) curve. Results Compared with the control group, the serum levels of PAI-1 and RBP4 in STEMI group increased (all P<0. 05). Compared with the reflow group, the serum levels of PAI-1 and RBP4 in no-reflow group increased (all P<0. 05). Multivariate Logistic regression analysis showed that the increase of age and the increase of LDL cholesterol, PAI-1 and RBP4 were independent risk factors for noreflow after PCI in STEMI patients (all P<0. 05), and the increase of left ventricular ejection fraction was a protective fac‐ tor (P<0. 05). ROC curve analysis showed that the area under the curve of serum PAI-1 and RBP4 levels was greater than that of PAI-1 and RBP4 alone in predicting no-reflow of STEMI patients after PCI (both P<0. 05). Conclusion The in‐ creased serum levels of PAI-1 and RBP4 in STEMI patients are associated with no-reflow after PCI, and the serum PAI-1 combined with RBP4 has a high value in predicting no-reflow after PCI. [ABSTRACT FROM AUTHOR]

Copyright of Machine Tool & Hydraulics is the property of Guangzhou Mechanical Engineering Research Institute (GMERI) 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 China Brewing is the property of China Brewing 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 Modern Food Science & Technology is the property of Editorial Office of Modern Food 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.)

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.)

Copyright of Polymer Materials Science & Engineering is the property of Sichuan University, Polymer Research Institute 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 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 Signal Processing is the property of Journal of Signal Processing 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 Coal Science & Technology (0253-2336) is the property of Coal 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.)

Copyright of Science Technology & Engineering is the property of Chinese Society of Technology Economics 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 observe the short-term efficacy of domestic RECO stent used in endovascular treatment of acute posterior circulation infarction, and to analyze the factors affecting the prognosis of patients. Methods The clinical data of 148 patients with acute posterior circulatory infarction who used domestic RECO stents and Solitaire stents for endovascular treatment admitted to The First Department of Neurosurgery, Tieling Central Hospital from December 2018 to October 2020 were analyzed retrospectively. The recanalization of the blood vessels in patients with two different thrombectomy stents were observed, and the mRS score of patients after 3 months were counted. After 3 months, patients with mRS scores of 0-2 were classified as the good prognosis group, and patients with mRS scores of 3-6 were classified as the poor prognosis group. The general clinical data of the two groups of patients with good and poor prognosis using domestic RECO stents were compared. The relevant factors that may affect the prognosis of patients were analyzed. And the clinical effect of using other stents in the same period for emergency postertor-circulation embolectomy were compared. Results Among 98 patients with acute posteriorcirculatory infarction using domestic RECO embolization stent, 90 were recanalized and 8 were not recanalized. After 3 months, the mRS score showed good prognosis group was 60 cases, and poor prognosis group was 38 cases. There were 50 patients with acute posterior circulation infarction, 45 patients with recanalization, 5 patients without recanalization, 3 patients with postoperative death, 31 patients with good prognosis and 19 patients with poor prognosis after 3 months of mRS score. There was no significant difference in the short-term efficacy of domestic RECO stent used in the treatment of acute posterior circulation infarction compared with Solitaire stent (P ＞ 0. 05). After analyzing the related factors that may lead to poor prognosis of patients who use domestic RECO stents to remove thrombi,it is concluded that PC-ASPECTS score at admission,collateral compensation,NIHSS score at admission,time from onset to femoral artery puncture,times of thrombus removal,and whether diabetes are associated with the related factors that affect the prognosis of patients. Conclusions The domestic RECO stent used in the endovascular treatment of acute posterior circulation infarction has a significant short-term effect. The higher the patient's PC-ASPECTS score,the better the collateral compensation,the lower the NIHSS score at admission,and the shorter the time from onset to femoral artery puncture. The near-term prognosis is better. [ABSTRACT FROM AUTHOR]