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Copyright of Metal Working (1674-165X) is the property of Metal Working 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 Science & Technology & Economy is the property of Grain Science & Technology & Economy 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 Feed Research is the property of Editorial Board of Feed Research 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 Rehabilitation Medicine is the property of China Association of Rehabilitation Medicine, China-Japan Friendship Hospital 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 Metal Working (1674-165X) is the property of Metal Working 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.)

为考察脂肪酶Rhizopus chinensis催化水解大豆粉末磷脂制备L-α-甘油磷脂酰乙醇胺（L-α-GPE）的可行性，采用脂肪酶Rhizopus chinensis催化水解大豆粉末磷脂制备L-α-GPE，通过单因素实验考察了pH、大豆粉末磷脂质量浓度、反应温度、CaCl2质量浓度、酶浓度对L-α-GPE得率的影响，并对纯化产品进行了红外光谱和超高效液相色谱电喷雾四极杆飞行时间质谱(UPLC-Q-TOF-MS)结构验证。结果表明：在pH 7，大豆粉末磷脂质量浓度5 mg/mL，大豆粉末磷脂磷酸盐缓冲溶液中添加终质量浓度为2 mg/mL的CaCl2、终浓度为30 U/mL的脂肪酶Rhizopus chinensis，于45 ℃下反应15 h后，L-α-GPE得率为93.8%。产品经分离纯化后得到纯度为99.2%的浅黄色黏稠液体，经结构验证确为L-α-GPE。 To investigate the feasibility of L-α-glycerylphosphorylethanolamine (L-α-GPE) preparation from hydrolysis of soybean phospholipids powder with Rhizopus chinensis as catalyst, L-α-GPE was prepared by Rhizopus chinensis-catalyzed hydrolysis of soybean phospholipids powder. The effects of pH, soybean phospholipid powder mass concentration, reaction temperature, CaCl2 mass concentration and enzyme concentration on the yield of L-α-GPE were investigated by single-factor experiment, and the structure of the purified products were verified by infrared spectroscopy and UPLC-Q-TOF-MS. The results showed that the yield of L-α-GPE was 93.8% under the conditions of addition of final mass concentration of CaCl2 2 mg/mL and final concentration of Rhizopus chinensis 30 U/mL in soybean phospholipids powder mass concentration 5 mg/mL, phosphate buffer solution pH 7， reaction time 15 h, and reaction temperature 45℃. After purification， a light yellow viscous liquid product with a purity of 99.2% was obtained, which was verified as L-α-GPE by structural verification.

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

In the construction of shield tunnels close to existing structures, the clay shock method is often introduced to assist in the control of ground displacement. The rheological and penetration diffusion properties of clay shock slurry have an important influence on the filling effect of the circumferential gap outside the shield shell. Based on the X-ray diffraction(XRD) test and viscosity test of clay shock slurry, the microscopic composition and rheological properties of the slurry were investigated. Based on the control equations of multiphase flow in porous media, a numerical model of diffusion of clay shock slurry in sandy soil was established, and the effects of water-powder ratio, formation permeability coefficient and grouting pressure on the diffusion performance were analyzed. The reliability of the numerical model was verified by combining with the seepage equation of Bingham fluid in sandy soil. The results show that the composition of the clay shock slurry is mainly quartz, albite, illite and feldspar. With the increase of the water-powder ratio of liquid A, the albite increases and illite content decreases. The plastic viscosity and yield strength of the clay shock slurry increase with the decrease in the water-powder ratio of fluid A. The coefficient of determination of Bingham􀆳s model for the rheological curve of the slurry is more than 0. 95. The filling-diffusion stage of the clay shock slurry in the circumferential gap is about 25 s, and then the penetrationdiffusion into the formation occurs. The penetration-diffusion rate is much smaller than the filling-diffusion. With the increase of the water-powder ratio of liquid A, the permeability coefficient of the formation and the grouting pressure, the clay shock slurry in the formation penetration distance will increase. [ABSTRACT FROM AUTHOR]

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 Feed Research is the property of Editorial Board of Feed Research 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 Application Research of Computers / Jisuanji Yingyong Yanjiu is the property of Application Research of Computers Edition 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 China Fiber Inspection is the property of China Fiber Inspection 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 the Chinese Ceramic Society is the property of Bulletin of the Chinese Ceramic Society 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 Chemical Engineering (China) / Huaxue Gongcheng is the property of Hualu Engineering Science & Technology Co Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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

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

Copyright of Railway Construction Technology is the property of Railway Construction 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.)

In recent years, as the transportation system becomes more and more developed and people travel more and more frequently, it has become an important means to check people′s packages through X-ray security screening machines to prevent incidents endangering public safety. At present, dangerous goods detection of X-ray images in many places is still carried out manually by security inspectors, which has problems of heavy workload and low efficiency. Therefore, it is necessary to use the existing target detection technology to detect dangerous goods automatically. However, the background of dangerous goods in X-ray images is often complicated, which leads to the low accuracy of the automatic detection of dangerous goods. Therefore, this paper proposes an improved att＿decouple＿YOLOv5s model. By introducing the Convolutional Block Attention Module (CBAM) in the feature fusion part of YOLOv5s model, the relevant feature information is strengthened and the background information is suppressed; The detection head of the model is decoupled by the parallel branch method to solve the conflict problem caused by the coupling of classification and positioning tasks. Finally, this paper tested 12 kinds of dangerous goods in X-ray images in the public data set pidray. The experimental results showed that the average accuracy of the detection performance index of the proposed model reached 88.1% when the IoU (Intersection over Union) threshold was 0.5, which was 2.8% higher than that of the YOLOv5s model; When the IoU threshold was between 0.5 and 0.95, the average precision reached 76.6%, which was 4.3% higher than that of YOLOv5s. The effectiveness of the improved algorithm is fully verified. [ABSTRACT FROM AUTHOR]

In order to achieve long-term monitoring of the effluent site and liquid production profile of the horizontal well, it is essential to develop high-performance sustained-release tracers. In this paper, cerium citrate rare earth tracer was first synthesized from citric acid and cerium nitrate as raw materials, and then mixed with epoxy resin to prepare a sustained-release rare earth tracer under the curing action of triethanolamine. The water absorption properties, thermal stability and release properties of the tracer are studied, and the release curve is mathematically simulated, and the sustained-release dynamics of the tracer are discussed. The results showed that the slow-release rare-earth tracer containing 8% cerium citrate has excellent long-lasting retardation, with a cumulative release rate of 19.95% after 700 h. It still has great retardation potential and good thermal stability, with a weight loss rate of 7.51% below 300℃,and does not decompose easily. The release rate of the tracer increases with the increase of temperature and decreases with the increase of salinity. The release mechanism is mainly diffusion, and the release follows the Fick diffusion mechanism. At this time, the driving force of the tracer release mainly comes from the concentration difference between the slow-release rare earth tracer and the surrounding medium, and then the effect of slow release is achieved. It is practical as a tracer for long-term monitoring of strata. [ABSTRACT FROM AUTHOR]

In the tasks of passage re-ranking, recent studies propose late interaction architectures based on bi-encoders for faster computation. Since these models independently encode queries and passages during training and inference,the performance of the ranking model heavily relies on the embedding quality of the encoder. Moreover, some multivector late-interaction approaches, which calculate text similarity by summing the maximum similarities between character vectors, may encounter partial matching issues. To address these limitations, a pre-training method called Replacement Paragraph Prediction（RPP） is proposed. It adopts a partially connected autoencoder architecture and employs a task similar to ELECTRA’s replacement token prediction to enable the pre-trained model to establish semantic relationships between given queries and passages, thus enhancing its representational capacity. Regarding the improvement of interaction methods, a new late-interaction paradigm is designed. It uses different attention mechanisms to guide different text representations for the passages to be ranked. It dynamically fuses these representations and computes similarity with the query vector through dot product, providing a lower complexity and finer granularity in interaction. Experiments on the MS MACRO passages ranking dataset demonstrate that the proposed model outperforms ColBERT and PreTTR on the MRR@10 metric under different training conditions. When using knowledge distillation, the proposed model achieves performance comparable to that of the teacher model but with a more than 10-fold reduction in sorting time on GPUs and a more than 35-fold reduction on CPUs. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Shaanxi University of Science & Technology is the property of Journal of Shaanxi University of Science & Technology 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 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.)

[Objective/Meaning] The frequent impact of natural disasters has directly or indirectly affected the social stability and people’s production and life. The effective emergency response and post-disaster reconstruction of the government may provide important opportunities for the government to resolve the disaster risks and create a new image, thereby enhancing the legitimacy of the regime in the state of emergency. [Methods/Procedures] Based on the data of the China Family Panel Studies in 2014, 2016 and 2018, the impact of natural disasters on the trust of rural residents in local governments was empirically tested through the twoway fixed effect model.[Results/Conclusions] It was found that the level of trust of rural residents in local governments has been significantly improved under the impact of long-term natural disasters. Under the impact of short-term natural disasters, the level of trust of rural residents in local governments would increase significantly, but it was difficult to maintain for a long time, and even would fall back to the normal levels. The heterogeneity analysis showed that the impact of disasters which were closely related to the production and life of rural residents, such as the flood and drought disasters, biological disasters, earthquake disasters, and geological disasters, has strengthened the trust of rural residents in local governments. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Laser Biology / Acta Laser Biology Sinica is the property of Acta Laser Biology 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 Southwest China Journal of Agricultural Sciences is the property of Editorial Department of Southwest China Journal 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 Journal of Dalian Ocean University is the property of Journal of Dalian Ocean University 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 Journal of Guilin University of Technology is the property of Journal of Guilin University of 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 Uranium Geology is the property of Uranium Geology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Metal Working (1674-165X) is the property of Metal Working 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 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 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 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 Applied Chemical Industry is the property of Shaanxi Research Design Insitute of Petroleum & Chemical Industry 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 Henan University of Technology Natural Science Edition is the property of Henan University of Technology Journal 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 Henan Agricultural Sciences is the property of Editorial Board of Journal of Henan 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 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 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 Journal of Henan University of Technology Natural Science Edition is the property of Henan University of Technology Journal 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 Refractories / Naihuo Cailiao is the property of Naihuo Cailia (Refractories) 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 Feed Research is the property of Editorial Board of Feed Research 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.)