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In order to explore the mental workload levels of pilots at different stages of airfield traffic pattern, search for electrocardiogram indicators that represent mental workload, a six degree of freedom simulation flight experiment on pentagonal flight tasks for pilots was conducted, the mental workload levels during the flight process was measured, data on various electrocardiogram (ECG) indicators of pilots at different flight stages was collected, and factor analysis was used to construct a pilot mental load model to analyze and verify the characteristics of changes in the mental workload of pilots at different flight stages. The results indicate that compared to heart rate indicators, heart rate variability indicators have higher reliability and validity in measuring pilot mental workload. The mental workload during takeoff and ascent stages is at a relatively low level and shows a decreasing trend. The cognitive load level during the cruise phase is low and the trend of change is smooth. The mental workload level during the approach and landing phase is the highest. In addition, unexpected events can significantly affect the mental workload, causing a significant increase in the pilot􀆳s mental load. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Oil Crop Sciences is the property of Oil Crops Research Institute of Chinese Academy of 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 Oil Crop Sciences is the property of Oil Crops Research Institute of Chinese Academy of 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 Power Generation Technology is the property of Power Generation Technology 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 Chinese Institute of Food Science & Technology is the property of Journal of Chinese Institute of Food Science & Technology Periodical 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 Food & Machinery is the property of Food & Machinery 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 Arteriosclerosis is the property of Chinese Journal of Arteriosclerosis 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 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 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 Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue 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 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 Guangxi Normal University - Natural Science Edition 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.)

Enterprises are the principal players of scientific research and technology innovation. Increasing the participation of enterprises in basic research is of great significance for China to realize high-level self-reliance and strength in science and technology and to improve the efficiency of national innovation system. However, there is still an obvious gap between the basic research capabilities of Chinese enterprises and those of the United States, Japan, or other developed countries. In this study, we firstly reviewed the characteristics and problems of Chinese enterprises' basic research, finding that expenditure on basic research in enterprises accounts for a relatively low proportion of that in the whole society. At the same time, even though the output of basic research produced by enterprises has increased, its contribution to knowledge creation still needs to be improved. Then, using an "incentive-ability" analysis framework, we revealed the constraints hindering Chinese enterprises to conduct basic research. It shows that incentive for firms to invest in basic research is insufficient. From the perspective of ability, the problem of talent restriction is prominent, industry-university-research cooperation in basic research is limited, and it is difficult for enterprises to use scientific research infrastructure. In the last part of this paper, we present the corresponding countermeasures and suggestions put forward in this study to improve the policy system to support the basic research in enterprises. These measures include: develop differentiated basic research guidance strategies for different industries; support enterprises in setting up laboratories and cultivating talents together with universities and institutions; improve the selection, organization, evaluation and decision-making mechanisms for major scientific and technological projects undertaken by enterprises; expand sharing of science and technology infrastructure and achievements; reform the government outsourcing system to encourage original investment by enterprises; and improve the intellectual property protection system. [ABSTRACT FROM AUTHOR]

Copyright of Electric Power Engineering Technology is the property of Editorial Department of Electric Power Engineering 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.)

Aiming at the problems of various influencing factors and lack of historical data in spatial load forecasting, a spatial load forecasting method considering multi-dimensional feature and data enhancement is proposed. Firstly, considering various factors affecting power load, a regional multi-dimensional index model is established from the development intensity, development level and climate conditions. Then the data generation model of generative adversarial networks（GAN） is constructed to enhance the training set and generate a sufficient number of training samples in line with regional characteristics. Secondly, particle swarm optimization (PSO) algorithm is used to optimize the initial weight and threshold back propagation (BP) neural network to establish the spatial load forecasting model, and the enhanced data set is used to realize the spatial load forecasting. Finally, taking four districts of an eastern city as an example, the method is verified. The simulation results show that the method proposed in this paper can improve the accuracy of spatial load forecasting, and has practicability and effectiveness. [ABSTRACT FROM AUTHOR]

Copyright of China Medical Education Technology is the property of China Medical Education Technology 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 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 Medical Equipment Journal is the property of Chinese Medical Equipment Journal 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 Xi'an Jiaotong University (Medical Sciences) is the property of Xian Jiaotong 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 Railway Investigation & Surveying is the property of Railway Investigation & Surveying 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.)

With the in-depth research on the molecular mechanism of hepatocellular carcinoma (HCC) in recent years, targeted therapy has achieved rapid development and made great contributions to delaying disease progression and improving prognosis. Due to the complex pathogenesis of HCC, molecular targeted therapy alone has unsatisfactory overall clinical benefits; therefore, new treatment regimens of targeted therapy in combination with other treatment modalities continue to appear in recent years and have obtained encouraging results. This article briefly summarizes the drugs used in molecular targeted therapy, the current research status of molecular targeted therapy, and the advances in its combination with other treatment modalities for HCC. [ABSTRACT FROM AUTHOR]

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 analyze the clinical features, diagnosis and treatment of uterine intravenous leiomyomatosis (IVL). Methods: A retrospective analysis was performed on 48 cases of IVL admitted to Shengjing Hospital Affiliated to China Medical University from December 2011 to March 2020. Follow-up was conducted. Results: The age of the 48 patients ranged from 34 to 71 years old, with an average age of 46.31±7.12 years old. Symptoms included menorrhagia (22.9%), irregular bleeding (12.5%), lower abdominal pain (12.5%) and frequent urination (12.5%)，etc. Only 3 (6.3%) patients were diagnosed with IVL by pelvic sonography; while 2 (7.4%) patients were diagnosed with IVL, 6 (22.2%) with uterine fibroid, 7 (25.9%) with uterine fibroid degeneration, and 12 (44.4%) with cystic-solid lesion in pelvic cavity by computed tomography (CT) and/or magnetic resonance imaging (MRI). 35 patients underwent CA125 test, 7 showed abnormal results, 28 (80.0%) showed normal results. The lesion was greater than or equal to 5 cm in 40 patients (83.3%), with a maximum of 30 cm. Soft texture in 33 cases (68.8%); The lesions were located in the uterine body in 34 cases (70.8%), cervical isthmus in 7 cases (14.6%), broad ligament in 6 cases (12.5%), and next to the right internal iliac vein in 1 case (2.1%). Surgical methods included resection of lesions (16.7%), total hysterectomy (41.7%), total hysterectomy with unilateral adnexectomy (10.4%) and total hysterectomy with bilateral adnexectomy (31.2%). Follow-up data were obtained in 44 patients, the median follow-up time was 38 months, among which 2 had recurrence, with a recurrence rate of 4.5%. All the patients with recurrence underwent laparohysterectomy and 1 of them was pathologically indicated to be cell-rich, relapsed 3 years after surgery and progressed to the heart. Conclusions: Symptoms of IVL were usually nonspecific, and preoperative diagnosis is difficult. However, IVL should be highly suspected when auxiliary examination indicated that the tumor presented as mixed cystic and solid or suspicious degeneration, and CA125 was normal or mildly elevated, and the tumor was found to be soft intraoperative. Surgical resection is the main treatment, select the appropriate operation method can obtain satisfactory therapeutic effect. It is important to adequately examine intraoperatively. Long-term follow-up is important, especially patients with cell abound type. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Petrochemical Universities / Shiyou Huagong Gaodeng Xuexiao Xuebao is the property of Journal Editorial Department Of Liaoning Shihua 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 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.)

Objective To observe the effects of Jiawei Liu'an Jian (Supplemented Six-Ingredient Decoction, JWLAJ) on airway inflammation and pathological changes of pulmonary tissue remodeling in rats with cough variant asthma (CVA), and to explore its mechanism in treating CVA, so as to provide evidence for clinical treatment. Methods A total of 60 Wistar rats were randomly allocated into normal group, model group, Montelukast sodium (MS) group, and treatment groups including low-dose, mid-dose and high-dose JWLAJ groups. The rats were sensitized with albumin and aluminium hydroxide, and then inhaled albumin to replicate CVA rat models. The infiltration of pulmonary inflammatory cells, the degree of collagen deposition (collagen area and collagen volume fraction) and morphological changes of airway in the lung tissues of rats in each group were observed. Results Compared with the normal group, inflammatory cell infiltration, hyperemia and edema could be observed in the lung tissues under the microscope in the model group. Compared with the model group, the amount of inflammatory cells in the lung tissues were reduced in all treatment groups, and the degrees of hyperemia and edema were also reduced. Collagen area: Compared with the normal group, the collagen area of the model group was increased (P<0.05); compared with each other in the treatment groups, the collagen area decreased most significantly (P<0.05) in the low-dose JWLAJ group; there was no statistically significant difference between the treatment groups and the MS group (P>0.05). Collagen volume fraction: Compared with the normal group, the collagen volume fraction of the model group was increased (P<0.05); compared with each other in treatment groups, the collagen volume fraction decreased most significantly (P<0.05) in the low-dose JWLAJ group; there was no statistically significant difference between the treatment groups and MS group (P>0.05). The airway morphological parameters: Compared with normal group, there was a significant increase in smooth muscle area/bronchial basement membrane diameter (Wam/Pbm), as well as airway wall area/bronchial basement membrane diameter (Wai/Pbm) in the model group (P<0.05). Compared within the treatment groups, the Wam/Pbm, Wai/Pbm ratios were the lowest in low-dose JWLAJ group (P<0.05). There was no statistically significant difference between the MS group and treatment groups (P>0.05). Conclusion JWLAJ could be used to prevent and treat CVA, probably by reducing infiltration, hyperemia and edema of inflammatory cells in lung tissues, reducing collagen deposition surrounding the airway, as well as interfering in airway remodeling. [ABSTRACT FROM AUTHOR]

Quantitative evaluation of water resources carrying capacity can provide a basis for effective regulation of water resources, improvement of water resources carrying capacity and elimination of water resources overload areas. Based on the new connotation of water resources carrying capacity, an evaluation index system for water resources carrying capacity was constructed which considered four aspects of water quantity, water quality, watershed and water flow. In traditional research of water resources carrying capacity, there existed many uncertain factors and coupling relationships between indicators. In order to address this issue, this paper calculated the weights using EFAST method, which considers the coupling relationship between indicators. The connection entropy model that can overcome the uncertainty of evaluation was carried out to evaluate comprehensive water resources carrying capacity. By taking the Yellow River Basin as an example, the weights of the carrying capacity indices were calculated using EFAST method and weight entropy method respectively and made a comparison between the two methods. Finally, the water resources carrying capacity of 61 cities in this basin in 2015 was comprehensively evaluated. The results showed that: EFAST method was more reasonable than entropy weight method in identifying important indicators. Cities whose water resources carrying capacity were at grade I (very high), grade II (higher), grade III (medium), grade IV (lower) and grade V (very low) levels accounted for 0%, 4.9%, 18.1%, 63.9% and 13.1% respectively of the number of cities in the Yellow River Basin. The cities of grades IV and V were distributed in provinces except Qinghai. [ABSTRACT FROM AUTHOR]

Copyright of Transactions of Beijing Institute of Technology is the property of Beijing 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.)

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 Practical Pharmacy & Clinical Remedies is the property of Editorial Department of Practical Pharmacy & Clinical Remedies 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 Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine 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.)