Search

文章利用基于布里渊散射原理的BOTDR（布里渊光时域反射仪）技术研究了OPGW（光纤复合架空地线）光缆内部光纤在不同环境温度条件下的布里渊频移变化特性。研究表明,同一光缆内不同光纤的布里渊散射频移的温度系数与基础频移具有微小差异,且日照区与非日照区的温度系数有比较固定的差异。

Objective To understand the status quo of infectious disease reports automatically exchanged by secondary and above medical institutions in Sichuan province based on regional platform, and provide basis for improving the work on automatic exchange of infectious disease information reports in the next step. Methods Check and calculate the success rates of exchange and rough exchange through the system, the use of the infectious disease reporting management related systems was investigated by questionnaire survey, T - test and chi - square test were used for comparison between groups, and spearman correlation analysis was used for correlation. Results From July to September 2023, the exchange success rate in 68 medical institutions was 92. 67%, and the success rate of crude exchange reached 95. 87%. Compared with other level medical institutions, municipal medical institutions had higher success rate of exchange and crude exchange, and longer time interval to realize automatic exchange. The exchange success rate was positively correlated with the time interval to realize automatic exchange (r = 0. 44, P < 0. 001) and the crude exchange success rate (r = 0. 51, P < 0. 001). More than 90% of the institutions had HIS, LIS, PACS. 77. 94% of the institutions could automatically generate the report card, more than 80% had the report card management and information statistics query functions. 73. 53% realized the automatic early warning of infectious disease report card, and 25% of the institutions reported the card forcibly after the early warning. 88. 24% felt that the workload of infectious disease report was reduced after automatic exchange. Conclusion The success rate of automatic exchange and the success rate of crude exchange in medical institutions were higher overall, municipal medical institutions were higher than other levels of medical institutions. The construction rate of basic information system in medical institutions was high, but the basic functions of automatic exchange were not perfect. Automatic exchange improves the efficiency of reporting to some extent, but it still could not completely replace manual reporting. [ABSTRACT FROM AUTHOR]

Aldosterone is a kind of steroid hormone produced by the zona glomerulosa (ZG) cells of the adrenal cortex which plays a crucial regulatory role in fluid-electrolyte balance and blood pressure stability. Aldosterone biosynthesis is a calcium-dependent process, and ion channels play a key role in this process. Primary aldosteronism is closely related to mutations in ion channels. Recent studies have highlighted an intriguing relationship between the unique rosette structure of ZG cells and their electrical excitability. Elucidating the connection between rosettes and ZG cell electrical excitability as well as aldosterone secretion leads to a deeper understanding of the mechanisms regulating aldosterone secretion and may provide new insights into the pathogenesis of primary aldosteronism. [ABSTRACT FROM AUTHOR]

Copyright of West China Journal of Stomatology is the property of Sichuan University, West China College of Stomatology 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 Iron Steel Vanadium Titanium is the property of Iron Steel Vanadium Titanium 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 China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher 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.)

Automatic lane change of vehicles requires driving at the fastest possible speed while ensuring no collision situations. However, regular control is not robust enough to handle unexpected situations or respond to lane separation. To solve these problems, an automatic lane change decision model based on dueling double deep Q-network(D3QN) reinforcement learning model is proposed. The algorithm processes the environmental vehicle information fed back by the internet of vehicles, and then obtains actions through strategies. After the actions are executed, the neural network is trained according to given reward function, and finally the automatic lane change strategy is realized through the trained network and reinforcement learning. The three-lane environment built by Python and the vehicle simulation software CarMaker are used to carry out simulation experiments. The results show that the algorithm proposed has a good control effect, making it feasible and effective. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Liaoning Technical University (Natural Science Edition) / Liaoning Gongcheng Jishu Daxue Xuebao (Ziran Kexue Ban) is the property of Journal of Liaoning Technical University (Natural 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 South China Agricultural University 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.)

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 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.)

Copyright of Control Theory & Applications / Kongzhi Lilun Yu Yinyong is the property of Editorial Department of Control 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.)

Copyright of Nonferrous Metals (Mineral Processing Section) 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.)

In order to study the influence of the stress direction during underground engineering excavation on the strength of weakly cemented soft rock, the soft rock samples were obtained from the coal mine roadway engineering soft rock and the GDS(Global Digital Systems) hollow cylindrical test system was used to determine the average fixed principal stress. The deviation stress under the action of the rotation of the principal stress axes, the stress path of the soft rock mechanics, and rotation angle of the principal stress axes of weakly consolidated soft rock specimen were studied, and the stress-strain characteristics as well as the influence of the strength characteristics was determined. Based on the test results and power function model, an empirical equation of the shear strain of weakly consolidated soft rock under the principal stress axis was established. The results show that the deformation of weakly consolidated soft rock accumulates with the rotation of the principal stress axis, and with the rotation angle of the principal stress axis increases, the axial strain and shear strain rates increase rapidly, and the cumulative deformation also increases.The rotation of the principal stress axis accelerates the accumulation of the axial strain of the specimens.The shear formular can effectively predict the shear strain variation law of weakly consolidated soft rock under the stress axis rotation. Additionally, it can be applied in the deformation prediction of practical engineering. [ABSTRACT FROM AUTHOR]

A conditional generative adversarial network-based high perceptual image compression(HPIC) model was proposed to obtain a compressed image that conforms to human visual perception. In HPIC， the original image was encoded and quantized based on a hyper prior probability model. A generator based on the conditional additional label and residual module was used for the reconstruction of the compressed image， and a discriminator based on the convolutional neural network was used to distinguish the difference between the compressed image and the real image. Based on the bit rate-distortion-perception optimization theory to design the loss function， the perceptual distortion metric was chosen based on the eigenvalues of the pre-trained inception network to achieve image compression reconstruction with high perceptual quality on the one hand， and use the adversarial generation network loss to eliminate compression artifacts and improve the compression accuracy on the other hand. The experimental results show that HPIC achieves a good balance in the bit rate-distortion-perception tradeoff and outperforms the current common algorithms in all perceptual metrics scores， even though the latter uses twice as much bit rate as ours. HPIC can achieve compression with high perceptual quality. [ABSTRACT FROM AUTHOR]

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.)

Aiming at multi-focus image fusion, the complementary information at each scale is fused in a targeted manner using a multi-scale fusion method. First, the source image is decomposed into a background layer and a detail layer using the L0 gradient minimization smoothing method, and then a fractional-order edge detection mask is used to preserve the edge information in the background layer, and a fractional-order gradient energy operator is introduced in the detail layer for weight assignment. The experimental results show that the proposed fractional-order gradient energy operator is more sensitive than the integer-order gradient energy clarity operator, which is consistent with the human visual perception. The fusion method proposed effectively avoids artifacts and block effects in the fused images, and retains the source image information more fully. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Functional Materials / Gongneng Cailiao is the property of Chongqing Functional Materials Periodical 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.)

Copyright of Mining & Metallurgy (10057854) 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 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 Nonferrous Metals (Mineral Processing Section) 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 Acta Scientiarum Naturalium Universitatis Sunyatseni / Zhongshan Daxue Xuebao is the property of Sun-Yat-Sen 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.)

Ｉｎ ｏｒｄｅｒ ｔｏ ａｖｏｉｄ ｔｈｅ ｂｌｕｒｒｉｎｇ ｏｆ ｉｍａｇｅ ｂｙ ｃｌａｓｓｉｃａｌ ｍｅｄｉａｎ ｆｉｌｔｅｒ, ａ ｎｏｉｓｅ ｄｅｔｅｃｔｉｏｎ ｍｏｄｅｌ ｗａｓ ｅｓｔａｂｌｉｓｈｅｄ. Ａ ｓｗｉｔｃｈｉｎｇ ｆｉｌｔｅｒ ｗａｓ ｄｅｓｉｇｎｅｄ ｂｙ ｄｅｔｅｃｔｉｎｇ ｎｏｉｓｅ. Ｗｈｅｎ ｔｈｅ ｄｅｔｅｃｔｉｏｎ ｐｏｉｎｔ ｉｓ ｎｏｉｓｙ, ｔｈｅ ｍｅｄｉａｎ ｆｉｌｔｅｒ ｗａｓ ｕｓｅｄ ｆｏｒ ｄｅｎｏｉｓｉｎｇ. Ｗｈｅｎ ｔｈｅ ｄｅｔｅｃｔｉｏｎ ｐｏｉｎｔ ｉｓ ｎｏｎ-ｎｏｉｓｙ ｐｏｉｎｔ, ｔｈｅ ｆｒａｃｔｉｏｎａｌ ｄｉｆｆｅｒｅｎｔｉａｌ ｆｉｌｔｅｒ ｗａｓ ｕｓｅｄ ｔｏ ｅｎｈａｎｃｅ ｔｈｅ ｉｍａｇｅ. Ｔｈｅ ｐｒｏｐｏｓｅｄ ａｌｇｏｒｉｔｈｍ ｃａｎ ｎｏｔ ｏｎｌｙ ｅｆｆｅｃｔｉｖｅｌｙ ｒｅｍｏｖｅ ｔｈｅ ｓａｌｔ ａｎｄ ｐｅｐｐｅｒ ｎｏｉｓｅ ｉｎ ｔｈｅ ｉｍａｇｅ, ｂｕｔ ａｌｓｏ ｅｎｈａｎｃｅ ｔｈｅ ｉｍａｇｅ, ｓｏ ｔｈａｔ ｔｈｅ ｉｍａｇｅ ｒｅｔａｉｎｓ ｔｈｅ ｄｅｔａｉｌｓ ｉｎｔａｃｔ ｗｈｅｎ ｔｈｅ ｅｄｇｅ ｉｓ ｐｒｏｔｒｕｄｉｎｇ. Ｓｅｌｅｃｔｉｎｇ “Ｌｅｎａ” ａｎｄ ｏｔｈｅｒ ｃｌａｓｓｉｃ ｉｍａｇｅｓ ｆｏｒ ｍｕｌｔｉｐｌｅ ｅｘｐｅｒｉｍｅｎｔｓ ａｎｄ ａｎａｌｙｓｉｓ, ｔｈｅ ｒｅｓｕｌｔｓ ｓｈｏｗｅｄ ｔｈｅ ｅｆｆｅｃｔｉｖｅｎｅｓｓ ｏｆ ｔｈｅ ｐｒｏｐｏｓｅｄ ａｌｇｏｒｉｔｈｍ ｉｎ ｉｍａｇｅ ｄｅｎｏｉｓｉｎｇ ａｎｄ ｅｎｈａｎｃｅｍｅｎｔ. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Contemporary Pediatrics is the property of Xiangya Medical Periodical 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.)

Copyright of Nonferrous Metals (Mineral Processing Section) 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 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.)

The observer for the uncertain fractional-order system with sensor fault and system measurement noise is developed. By using the method of augmented matrix and the invariant property of matrix rank， the uncertain fractional-order system is augmented into the singular fractional-order uncertain system. Based on the linear matrix inequality approach of stability criterion for fractional-order systems， an asymptotic stability criterion of the error dynamic system with fractional-order satisfying 1 [ABSTRACT FROM AUTHOR]

Copyright of Journal of Ecology & Rural Environment is the property of Journal of Ecology & Rural Environment 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 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 Computer Measurement & Control is the property of Magazine Agency of Computer Measurement & Control 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 Journal of Liquid Crystal & Displays is the property of Chinese Journal of Liquid Crystal & Displays 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 probe into the clinical efficacy and safety of methylprednisolone (MP) combined with monosialotetrahexosylganglioside sodium for injection (GM-1) in treatment of acute spinal cord injury (ASCI). METHODS: 88 patients with ASCI admitted into Jingzhou the Second People's Hospital from Jan. to Dec. 2015 were selected to be divided into observation group and control group via the random number table, with 44 cases in each. The control group were treated with MP, while the observation group additionally received GM-1 based on the control group. The efficacy and adverse drug reactions were compared between two groups. RESULTS: After treatment, the improvement of motor function and sensory function in two groups had been significantly improved, and observation group was better than control group, with statistically significant difference (P < 0. 05). The incidence of adverse drug reactions in observation group was 9. 1% (4/44), and control group was 11. 4% (5/44), the difference was not statistically significant (P > 0. 05). CONCLUSIONS: The efficacy of MP combined with GM-1 in treatment of ASCI was significant with high safety. [ABSTRACT FROM AUTHOR]

Objective To understand the hygiene and safety status of living and drinking water in the schools of Anlu City to provide a basis for improving the living and drinking water quality in schools. Methods A total of 138 samples of living and drinking water in whole schools of Anlu City during 2015 were collected,including well water,tap water,water from cold out-let and hot outlet of bottled water. The hygienic status of water quality was detected according to the related standard. Results Among 138 water samples,72 samples were unqualified with the disqualification rate of 52.2%,among them,which of tap water was 60.7%(12/28),which of well water was 66.7%(32/48),which of cold outlet water in bottled water was 48.4%(15/31) and which of hot outlet water was 25.8%(8/31). The disqualification rate of tap water in urban schools was 0,which was lower than 77.3%(17/22) in rural schools,the difference was statistically significant (χ2=11.802,P<0.05). The item disqualification indexes were mainly microbial and sensory indexes ,the small parts were the general chemical and toxic indexes. The disqualification rate of free chlorine in villages and towns tap water was 54.5%(12/22),indicating that villages and towns tap water was not fully dis-infected. Conclusion The quality of living and drinking water in the schools of Anlu City is poorer , especially in villages and towns schools. The hygienic facility investment,maintenance,supervision and management of school living and drinking water should be strengthened for ensuring the hygiene and safety of drinking water in teachers and students. [ABSTRACT FROM AUTHOR]