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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 Journal of Chinese Institute of Food Science & Technology / Zhongguo Shipin Xuebao 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 Electroplating & Finishing is the property of Electroplating & Finishing 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 Electroplating & Finishing is the property of Electroplating & Finishing 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 Bulletin of Soil & Water Conservation is the property of Bulletin of Soil & Water Conservation 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 Electroplating & Finishing is the property of Electroplating & Finishing 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.)

From the perspective of glass bonding strength and hermeticity, SiO2-Al2O3-Na2O-CaO(S1) and SiO2-Al2O3-Na2O-BaO(S2) sealing glasses, which are widely used in the field of SOFC, were studied and compared. It was found that the bonding strength between S1 and SOFC was 2. 00 MPa and the gas leakage rate was 0. 041 sccm/cm at the pressure of 30 kPa, while the bonding strength between S2 and SOFCs was 3. 93 MPa and the gas leakage rate was 0. 027 sccm/cm at the pressure of 30 kPa, indicates that S2 has better sealing performance than S1. The above results have been verified by comparing the open circuit voltages(OCVs) of SOFCs sealed with S1 and S2 at 750 ℃ and H2/Air=0. 6/3. 0 slm, respectively. The OCV of the former(S1) was only 0. 949 V, much lower than that of the latter(S2)(1. 08 V). Finally, the thermal expansion coefficient(TEC) and microstructure of the two sealing materials were analyzed, which provided a reference for the optimization of Ca-based and Ba-based high-temperature sealing glass. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Irrigation & Drainage is the property of Journal of Irrigation & Drainage 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.)

Diabetic kidney disease (DKD) is one of the most common complications of diabetes mellitus with a complex pathological process that often involves the entire renal structure. Circular RNAs are non-coding RNAs with a covalently closed loop structure, which play a role in various physiological and pathological processes. During DKD, circular RNAs are involved in renal cell injury by participating in the regulation of cell cycle, cell differentiation and death, and regulating processes such as inflammatory factor release and stromal fibronectin expression. In this paper, we introduce the structure and function of circular RNAs and review the recent research progress of circular RNAs in DKD from the perspective of renal cell injury. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering 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 World Nuclear Geoscience is the property of World Nuclear Geoscience 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.)

BACKGROUND: With the development of high-precision negative thermal ionization mass spectrometry (N-TIMS) technology, Re-Os isotopic dating of carbonaceous mudstone is more and more widely used in the determination of sedimentary age. The controversy over the diagenetic and metallogenic ages of the Dabaoshan copper deposit in Guangdong Province has always been a key restricting the study of the genetic mechanism. OBJECTIVES: To constrain the diagenetic and metallogenic ages of the Dabaoshan copper deposit. METHODS: Re-Os isotope ratios were determined by high precision N-TIMS after dissolving carbonaceous mudstone powder by reverse aqua regia in the Carius tube. Zircon U-Pb age was determined by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). RESULTS: (1) The contents of Re and Os ranged from 0.976×10-9 to 2.997×10-9 and 0.067×10-9 to 0.115×10-9, respectively. The 187Re/188Os ratio varied from 78.236 to 154.799, and the 187Os/188Os ratio varied from 1.642 to 1.885. The Re-Os isotopic isochron age of black carbonaceous mudstone was 195±28 Ma (n=6, MSWD=17). (2) The 206Pb/238U age ranged from 2631 to 236 Ma, including two Mesozoic zircons, accounting for 2.50% of the total zircons, 19 Paleozoic zircons, accounting for 23.8% of the total zircons, 58 proterozoic zircons, accounting for 73% of the total zircons, 1 Archean zircon, accounting for 1% of the total zircons. The results of detrital zircon U-Pb age were broad and developed multiple peak periods, among which the youngest source magmatic zircon was formed in the Indosinian period. CONCLUSIONS: The diagenetic and metallogenic age of the Dabaoshan copper deposit in Guangdong Province was constrained to the early Yanshanian. The distribution characteristics of detrital zircon U-Pb age further indicate that the Lower Jurassic Jinji Formation was formed at the stable continental margin, and its detrital material comes mainly from the ancient continental basement. [ABSTRACT FROM AUTHOR]

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 Chinese Journal of Aesthetic & Plastic Surgery is the property of Chinese Journal of Aesthetic & Plastic Surgery 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 Bearing is the property of Bearing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: The incidence of type 2 diabetes mellitus（T2 DM） continues to increase and the mortality rate of its complications is high. The disease cannot be completely cured and needs to be controlled by medicines for a long time, so it is important to early diagnose and prevent. Therefore, this study explored the changes of serum and tissue metabolic profiles in different disease processes of db/db mice. Methods: Based on the Ultra-high performance liquid chromatography combined with quadrupole time-of-flight mass spectrometry（UPLC-QTOF/MS）, non-targeted metabonomics was studied in serum and tissues of db/db mice and their controls at the age of8, 12 and 16 weeks. The specific differential metabolites were screened by PCA, OPLS-DA and t-test, then the diagnosis model was established by binary logistic regression. Results: More metabolic disorders were shown with the development of the disease. The levels of eicosapentaenoic acid（EPA）, tyrosine and leucine had significant differences in the serum and tissues of db/db mice and their controls,which were positively and negatively correlated with the progression of the disease. A joint diagnosis model based on the three metabolites for the detection of T2 DM was established as follows: Logit [P=T2 DM] =-6.052 * [EPA] + 5.837 * [Tyrosine] + 1.985 * [Leucine]-14.092. The Receiver operating characteristic curve（ROC） was constructed according to the diagnosis model. Outstanding diagnostic efficiency had been achieved with area under curve（AUC） of 0.988, sensitivity and specificity both of 98.1%. Conclusion: EPA, tyrosine and leucine can be regarded as the most typical T2 DM markers. [ABSTRACT FROM AUTHOR]

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 Coatings & Protection / Tuceng yu Fanghu is the property of Coating & Protection 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 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 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 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 World Nuclear Geoscience is the property of World Nuclear Geoscience 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 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 Natural Gas & Oil is the property of Editorial Department of Natural Gas & Oil 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.)

Copyright of Rock & Mineral Analysis is the property of Editorial Board of Rock & Mineral Analysis 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 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 Zhengzhou University: Engineering Science is the property of Editorial Office of Journal of Zhengzhou University: 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.)

Copyright of Journal of Aeronautical Materials is the property of Editorial Board of Journal of Aeronautical Materials 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 efficacy of Clostridium butyricum and alendronate sodium in inflammatory bowel disease complicated with osteoporosis (IBDCO) patients and the effects on bone metabolism, inflammatory factors and intestinal flora. Methods 80 IBDCO patients were randomly divided into the control group and observation group. Besides conventional treatments, the control group was given alendronate sodium, while the other was additionally given lived combined Clostridium butyricum and bifidobacterium capsules for 3 months. Curative efficacy, bone mineral density ( BMD) , bone metabolism indices, levels of inflammatory factors and intestinal flora were compared between two groups. Results Compared to the control group after 3 months, the observation group had higher efficacy (95. 0% vs 77.5%) , higher BMD of lumbar vertebra, femur neck and Wards triangle, higher levels of bone alkaline phosphatase, osteocalcin, lower level of C-terminal telopeptide of type-I collagen, lower levels of IL-6 and IL-17, lower content of bacillus coli and higher contents of bacillus bifida and lactobacillus in feces (all P<0.05). Conclusion Clostridium butyricum combined with alendronate sodium has high short-term curative efficacy for IBEXIIO patients, which can increase BMD, improve bone metabolism indices, alleviate inflammatory reaction and regulate intestinal flora. It is suitable for clinical application. [ABSTRACT FROM AUTHOR]

Copyright of China Tropical Medicine is the property of China Tropical 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.)

In received signal strength indication (RSSI)⁃based positioning, the deployment structure of bea⁃ con nodes greatly affects the accuracy of positioning. In theory, the intensive and well⁃proportioned distribu⁃ tion of these deployed can insure the high precise positioning results. However, the RSSI is seriously dis⁃ turbed by noise in the actual environment, which makes it difficult to ensure stable signal propagation even if the layout is reasonable. In addition, dense deployment can lead to crosstalk between signals, and com⁃ plex physical environments make it difficult to achieve ideal deployment of beacon nodes, which greatly af⁃ fects the positioning result. In this paper, we propose an algorithm for optimal selection of beacon nodes in trilateration positioning. After beacon deployment, the optimal reference beacon combination for each local region in the positioning scene is constructed according to the geometric relationship of the beacon nodes. Then, the beacon sequence scanned by the device in real time is matched with the regional best beacon com ⁃ bination. The preferred beacon nodes are used to solve the position, and the positioning accuracy is improved by optimally selecting the reference beacon nodes. Experiments show that the proposed algorithm can im ⁃ prove the positioning accuracy efficiently, which is close to the result of selecting the best reference beacons. [ABSTRACT FROM AUTHOR]

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 Yellow River is the property of Editorial Board of Yellow River 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 Geoscientica Sinica is the property of Acta Geoscientica 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.)

The influence of assembly stresses on the load bearing behavior of grid structures was experimentally and numerically studied. Two orthogonal spatial square pyramid grids with dimensions of 7m×12m and 5m×12m were tested separately and corresponding finite element (FE) analysis was carried out. It is revealed that the ultimate load bearing capacities of grid structures are undermined significantly owing to the assembly stresses. The influence coefficient of assembly stresses on the ultimate load bearing capacity was obtained according to parametric analysis of 204 plate grid models and 140 double-layer cylindrical lattice shells. A total of 38 potentially unstable double-layer spherical reticulated shells and double-layer cylindrical lattice shells were analyzed by means of FE analysis, revealing the reasonable range for the safety factor. It is shown that there are remarkable differences between the structural performances of the perfect models and the tested ones, such as global deformations, structural stiffness, ultimate load bearing capacities. It can be found that the coefficient conforms to a normal distribution. The value of the coefficient is equal to 0.5 for the plate grid, while this value should be taken as 0.55 for the double-layer cylindrical lattice shells. A value of 2.0 is suggested for the safety factor once the initial imperfection of assembly stresses and the Marshall model are introduced. Since the effect of assembly stresses has not been explicitly considered by design provisions in JGJ 7--2010 'Technical specification for space frame structures', a higher value of 3.0 is proposed. [ABSTRACT FROM AUTHOR]

This paper briefly introduced the engineering geology and safety monitoring design of the flood discharging tunnel of Qianping Reservoir and expounded in detail the safety monitoring results during the construction period and the stability of the surrounding rock of the tunnel. Through the comparison of safety monitoring instrument data, the deformation, stress law and characteristics of surrounding rock were analyzed in depth. It is concluded that the deformation of surrounding rock is closely related to the step excavation and the deformation increases with the excavation process. In general, the deformation is mainly caused by bursts and is related to bench excavation. When the upper step is excavated, the deformation is relatively smaller and the deformation is relatively larger when the lower step is excavated. If the height of the step excavation is too high and the progress is too fast, the sudden release of stress energy will be too large, resulting in sudden deformation of surrounding rock. The construction of the sluice tunnel of Qianping Reservoir has been completed and the deformation of surrounding rock is in a stable state at this stage. The safety monitoring design should be adjusted accordingly with the progress of the project and the geological conditions revealed. The safety monitoring itself needs to be designed dynamically. [ABSTRACT FROM AUTHOR]

The natural gas gathering and transportation system, composed of well site, gas gathering and separating station, booster station, gas pipeline networks and gas field water reinjection station, is a complex energy system in accordance with a certain topological structure of Zero convergence and it is one of the major energy-using sectors for gas producing. The energy model in existing process system is not fully applicable to natural gas gathering system, and then the gathering and transportation system is divided into four segments containing energy conversion, energy transmission, energy utilization and energy recovery by improving "three links" energy structure model of the process system. From the two perspectives of energy balance and exergy balance with the "three box" energy analysis method, the "Combined module multi-link analytical method" is proposed for a general energy consumption process. Energy analysis on a gas gathering system is conducted, energy-saving entry point of the gathering system is determined, and adjustment and reconstruction measures are proposed. The secondary index system and evaluation criteria of every energy sub segment is construct, the index weight levels using the Improved APH is determined, and Fuzzy Comprehensive Evaluation Model of a gathering system is established. [ABSTRACT FROM AUTHOR]