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Copyright of Piezoelectrics & Acoustooptics is the property of Piezoelectric & Acoustooptic 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 Engineering & Science / Jisuanji Gongcheng yu Kexue is the property of Computer Engineering & 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.)

Objective To investigate the microsurgical treatment of giant osteochondroma in pterygopalatine fossa. Methods The clinical data of 1 patient with giant osteochondroma in pterygopalatine fossa admitted to Department of Neurosurgery, General Hospital of the Eastern War Zone in March 2022 was analyzed retrospectively. The relevant literature were reviewed. The patient was admitted due to right facial numbness with decreased olfactory function. The skull CT and MRI examination showed that there was a giant osteoma in the right pterygopalatine fossa, and there were bone changes in right sphenoid pterygoid process, greater sphenoid wing, temporal bone and mastoid process. According to the examination results, osteochondroma of the right pterygopalatine fossa was considered, and the lesions was resected through the infratemporal fossa approach. Results The lesion was completely removed in the operation, and the patient had no obvious complications after the operation. The skull CT showed that the lesion was completely resected postoperatively, and the pathology indicated osteochondroma. Conclusions Osteochondroma of pterygopalatine fossa is rare. Combination of skull CT and MRI is helpful for diagnosis. Resection of osteochondroma in pterygopalatine fossa via infratemporal fossa approach has the advantages of complete resection, less trauma and rapid recovery. [ABSTRACT FROM AUTHOR]

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.)

The intestinal microbiota is considered a "new virtual metabolic organ", widely involved in the digestion and absorption of nutrients in the body. The occurrence and development of digestive system dis- eases are closely related to the intestinal microbiota, and the intestinal microbiota and its metabolites play an important role in maintaining the dynamic balance between intestinal homeostasis and immune regulation. The article reviews the research progress on the intestinal microbiota and common digestive system diseases such as non-alcoholic fatty liver disease, irritable bowel syndrome, inflammatory bowel disease, and colorectal cancer. [ABSTRACT FROM AUTHOR]

Copyright of Electric Power is the property of Electric Power 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 Multipurpose Utilization of Mineral Resources / Kuangchan Zonghe Liyong is the property of Multipurpose Utilization of Mineral Resources 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 Clinical Neurosurgery / Linchuang Shenjingwaike Zazhi is the property of Editorial Board of Journal of Clinical Neurosurgery 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 China Mechanical Engineering is the property of Editorial Board of China Mechanical 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 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 Electric Power is the property of Electric Power 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 Piezoelectrics & Acoustooptics is the property of Piezoelectric & Acoustooptic 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 Electric Machines & Control / Dianji Yu Kongzhi Xuebao is the property of Electric Machines & 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 Journal of Mine Automation is the property of Industry & Mine Automation 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.)

Graphene aerogel was prepared by hydrothermal method・ And phase change microcapsules were prepared by Pickering emulsion method・ Then they were mixed with elastic polymer emulsion in a certain proportion・ Finally, the graphene aerogel was combined with the mixed liquid by the vacuum impregnation method ・ The graphene aerogel was used as the thermally conductive skeleton, the elastic polymer was used as the elastic component, and the phase change microcapsule was used as the energy storage component. The heat storage performance and thermal performance of the phase change composite material were tested with optical microscope, laser particle size analyzer, differential scanning calorimetry and other instruments, and it was found that the method improved the deformation, anti・leakage and heat conduction of ordinary phase change materials while maintaining the original heat storage performance. [ABSTRACT FROM AUTHOR]

Copyright of Electric Machines & Control / Dianji Yu Kongzhi Xuebao is the property of Electric Machines & 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.)

Timing analysis and closure of CDC signals in asynchronous clock domains is an important guarantee to the function correctness of high frequency large scale digital circuits. In order to reduce the design area, a sliding window timing analysis method of CDC signals is proposed, which can execute timing analysis and closure by setting appropriate timing constraint window for each CDC path under each corner. This method can avoid the increase of cell area caused by fake timing violations and unnecessary timing fixing under over-constraint, which often happened in the fixed constraint method. The proposed method can also reduce the backend workload of CDC circuits. The experiment under 16 nm process shows that the proposed method can significantly save the design area compared with the fixed constraint method. [ABSTRACT FROM AUTHOR]

With the continuous improvement of integrated circuit design technology, it has brought about higher power consumption while bringing higher performance. How to balance high performance and low power consumption has become a key issue that needs to be solved in the current high-performance VLSI design. Standard cell replacement is such an effective way to reduce power consumption. This paper compares two different standard cell replacement strategies, and experimentally analyzes their power consumption optimization effect under different strategies and the corresponding impact on performance. A suitable standard cell replacement strategy is proposed to optimize the power consumption. [ABSTRACT FROM AUTHOR]

For the actual needs of improving the processor core performance of domestic processors, aiming at the performance defects that may appear in the RTL design of processor cores, this paper proposes a lightweight processor core performance analysis framework based on RTL simulation. The performance analysis framework is designed based on lightweight directional and random tests. Through the rapid simulation of the RTL design of the base processor core (Base Core) and the new generation processor core (New Core), and the comparative analysis of the simulation results, the performance defects that New Core may introduce in the RTL design process are found quickly. Based on the performance analysis framework, combined with actual application scenarios, the test methods and test results are given. The test results show that the performance analysis framework proposed can timely find the performance defects introduced by the new processor core in the RTL design process, and effectively accelerate the development of the domestic processor core. [ABSTRACT FROM AUTHOR]

Copyright of Journal of South China University of Technology (Natural Science Edition) is the property of South China 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 Journal of Clinical Neurosurgery / Linchuang Shenjingwaike Zazhi is the property of Editorial Board of Journal of Clinical Neurosurgery 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 Harbin Institute of Technology. Social Sciences Edition / Haerbin Gongye Daxue Xuebao. Shehui Kexue Ban is the property of Harbin Institute 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 Journal of Southern Agriculture is the property of Journal of Southern Agriculture 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 Sciencepaper is the property of China Sciencepaper 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 Vibration Engineering is the property of Nanjing University of Aeronautics & Astronautics 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 Prataculturae Sinica is the property of Acta Prataculturae Sinica 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 Piezoelectrics & Acoustooptics is the property of Piezoelectric & Acoustooptic 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 soil in midwest of Songnen Plain is becoming increasingly more salinized, which highlights the importance of rapid and precise monitoring and evaluation on salinization of soil. With great advantages, the microwave remote sensing becomes an emerging method with huge potential in detecting composition of soil. With the Sentinel-1 image covering the region with salinized soil in Songnen Plain as data source, combined with the assay data of total salt content in the sampled soil from the region of interest, the technology and method of soil salinization information extraction are investigated based on dual polarization radar image. Firstly, 64 soil samples are collected in the study area, and the total salt content of soil samples is tested in the laboratory. Fifty-two soil samples are taken as modeling samples, and 12 samples are taken as test samples. Saline-alkaline soil is divided into light salinization soil (with salt content of 1-3 g/kg), medium salinization soil (with salt content of 3-5 g/kg), heavy salinization soil (with salt content of 5-7 g/kg) and saline-alkaline soil (with salt content > 7 g/kg). The Speckle Filtering of S1TBX software is used to filter Sentinel-1 image to eliminate the influence of noise in the image on information extraction. Radiometric calibration is made for image using Radiometric-Calibrate tool to eliminate the absorption and scattering of atmospheric aerosol for imaging process so as to obtain the true back scattering coefficient of topographical surface feature. The image is subjected to geometrical correction by Terrain Correction tool. Then, by analyzing the quantitative relations between radar image VH and VV polarization modes, back scattering coefficient of polarization combination of VV+VH, VV/VH, (VV+VH)/(VV-VH), and (VV2+VH2)/(VV2-VH2), and soil salt content, the optimized polarization combination mode of the inversion model is determined. Lastly, the prediction model for soil salinity in the region of interest is established using multiple regression technique, and the relative error and root mean square error (RMSE) between predicted value and actual value of salinity in test sample of soil are compared to evaluate the precision of inversion model. The inversion model of soil salinity is used to inverse topsoil salinity in region of interest and the inversion result chart of soil salinity is drawn for the region of interest. The findings are: The back scattering coefficient of Sentinel-1 image VH polarization mode is strongly responsive to medium salinization soil, heavy salinization soil and saline-alkaline soil, and the back scattering coefficient of VV polarization mode is strongly responsive to all degrees of saline-alkaline soil; the back scattering coefficient of polarization mode of (VV2+VH2)/(VV2-VH2) can well separate non-salinized soil, light salinization soil, medium salinization soil, heavy salinization soil and saline-alkaline soil. The coefficient of determination R2 for the established model reaches 0.872, and the RMSE is 0.988. Model checking results show that, the maximal relative error between predicted value and actual value of sample’s salinity is 4.87%, and the minimum relative error is only 0.91%. In the scatter plot, inverse value and measured value of sample salt content after checking are evenly distributed on both sides of 1:1 straight line, and coefficient of determination R2 is up to 0.98, and RMSE is 0.412, showing that the inversion model has a high precision in prediction of soil salt content in the research area. The graphical result of the inversion shows that: light salinization soil is widely distributed in the research area; medium salinization soil is mainly distributed in the western and southern Daqing City and western and northern Datong District, and concentrates around the rivers and lakes in the research area; heavy salinization soil, saline-alkaline soil and medium salinization soil are incidentally distributed, and mainly distributed, and mainly distributed in western and southern Datong District. This method can meet the need for monitoring soil salinization in large region, and provide reference for research on extraction of composition of soil based on Sentinel-1 radar data. [ABSTRACT FROM AUTHOR]

[ Objective ] This paper aimed to test the application of GF-1 remote sensing images for estimating soil organic matter content. [ Method] Taken the fanning area soil of Fuvu city as tested samples, the organic matter contents of soil samples in laboratory tests were detected, the correlation of GF-1 band reflectance and transforming form with the content of soil organic matter were analyzed to determine organic matter sensitive bands, the spectral estimation models of a single band or multi band of soil organic matter content were established, and the area estimation model of the optimal content of soil organic matter in the study was chosen compared with the accuracy and stability of these estimation model. [ Result] The GF-1 band reflectance had a significantly negative correlation with organic matter content and reached the maximum value in the third band, the correlation coefficient was -0. 805 , and the RMS error was 0. 362; The reflectivity of power index would transform and could effectively improve the correlation with the content of organic matter, its correlation coefficients were increased to -0. 886 and -0. 872, and root mean square error decreased to 0. 283 and 0. 342 ; The 3 yuan to establish reflectance index transformation estimation model,model determination coefficient( R2 ) reached 0. 851 , and the RMS error of test samples was reduced to 0. 172 , which indicated that this model had a high accuracy, good stability estimation. [ Conclusion] The GF-1 remote sensing image could be used as a remote sensing data source for estimating soil organic matter content and would provide a reference for the study of GF-1 remote sensing image estimation of soil components. [ABSTRACT FROM AUTHOR]

In order to determine the best blasting hole spacing on the basis of physical principles and control hole arrangement for increasing the gas permeability of coal seam with carbon dioxide blasting technology, this paper used FLAC3D and Comsol software for different spacing between long-short radius of blasting and the blasting effect to carry on the numerical simulation. The results show that the blasting spacing is about 5 m, and about 7 m for blasting hole spacing. When the hole arrangement and control is in the middle of the adjacent blasting hole, liquid carbon dioxide porous continuous blasting can achieve ideal blasting anti-reflection effect. The larger the radius of the control hole, the more obvious the anti-reflection effect, and the higher the gas extraction efficiency. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Engineering Geology / Gongcheng Dizhi Xuebao is the property of Journal of Engineering Geology 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 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 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.)

The mechanism of Parkinson's disease (PD) has not been clarified. Recent studies found that activation of mitochondrion-dependent programmed cell death (PCD) pathways is indispensable to the demise of dopaminergic neurons in PD. The co-existence of different morphological forms of cell death attributed to the activation of the common upstream pathways was detected in PD. PCD, not only refer to mitochondrial caspase-dependent apoptosis, but also caspase-independent apoptosis, such as cell necrosis. The extension of concept provides more therapeutic targets in neural-protective treatment for PD, contributing to the prevention of the development of the neurodegenerative diseases. Now, more and more attention has been focused on anti-apoptosis therapy for neurodegenerative diseases, PD included. Many studies has demonstrated that inhibitor of caspase prevent the activation of caspase, and neurodegenerative disorders. Bax, located in the upstream of caspase, the executor of apoptosis, is set as the therapeutic target. More obvious neuro-protection may be achieved by the application of Bax-inhibiting Peptide (BIP), which inhibits the activation and translocation of Bax. This article reviews recent research progress on PD and PCD. [ABSTRACT FROM AUTHOR]

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.)