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Using the daily temperature, sunshine, precipitation and other meteorological element data from the Wuhai Meteorological Bureau from 2009 to 2018, as well as the Hansen wine grape experiment data, the correlation between the sugar-acid ratio of wine grapes and the meteorological factors in each growth period was analyzed, and a fitting model between the meteorological factors and the sugar-acid ratio was established. The results showed that the meteorological conditions during the growth of wine grapes had certain effects on the sugar-acid ratio after grapes matured, and the meteorological conditions from fruit formation to picking were most significant. The average minimum temperature in September,≥10 ℃ accumulated temperature from the entire flowering period to the picking period, sunshine hours from the color transition period to the maturity period, and hydrothermal coefficient from late July to early August had a significant impact on the sugar-acid ratio, with correlation coefficients ranging from 0. 6 to 0. 8, and all had passed the test α = 0. 05 significance test. A statistical model for meteorological factors and sugar-acid ratio was established by comprehensively considering factors such as temperature, water and heat, and sunlight. The fitting effect was good, providing a basis for field management and quality improvement of wine grapes. [ABSTRACT FROM AUTHOR]

Understanding the algorithms described in program code can help programmers grasp the program and carry out various software engineering tasks. Because manual understanding of program algorithms requires programmers to have rich professional knowledge and is time-consuming and labor-intensive, the main research goal of program algorithm recognition is to achieve automation of program algorithm understanding, which is more efficient and accurate compared to manual understanding. This paper systematically organized the relevant work in the field of program algorithm recognition. Firstly, it combed the concepts related to program algorithm recognition and introduced methods based on knowledge representation and information retrieval. Secondly, it divided the code representation based methods into sequence based, tree based and graph based methods for detailed elaboration, and made a summary and comparison of the three types of methods. Finally, it introduced the relevant application fields of the program algorithm recognition task, analyzed the remaining problems and made prospects for future development. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue is the property of Beijing Research Institute of Mining & Metallurgy Technology Group and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of 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 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 Engineering Science Research & Application is the property of Omniscient Pte. 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 Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue is the property of Beijing Research Institute of Mining & Metallurgy Technology Group and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The planting structure and spatial distribution of crops are the basis for the estimation of crop losses in flood disasters. In order to meet the accuracy requirements for rapid assessment of crop losses in flood disasters, it is urgent to build a real-time crop survey and disaster assessment method that combines remote sensing technology with ground surveys. Taking the rainstorm and flood disaster in Henan Province in 2021 as an example, this paper comprehensively used satellite remote sensing data and real ground object sample data obtained from field research to carry out a research on the fine classification of crops in Weihui City, Xinxiang, Henan Province, combined with the flood inundation duration calculation results based on remote sensing data, to assess the damage of crops in this flood disaster event in Weihui City. The results show that: a) The main types of flood disasters in Weihui City are high water level intrusion floods in rivers and waterlogging and stagnation in low-lying areas. b) The types of disaster-affected features are corn, the main crops, green forests around roads, and urban areas of Weihui City. The disaster assessment method for flood crops based on multi-source remote sensing data and real ground object samples proposed in this paper has high accuracy and timeliness. [ABSTRACT FROM AUTHOR]

The ideological and political construction of professional courses is one of the important directions of the current higher education reform. The construction of the ideological and political teaching system is an important innovative measure to realize the cultivation of moral education in colleges and universities. As a main course of biology, cell engineering is one of the earliest courses of ideological and political teaching reform in our school. As an interdisciplinary subject of science and technology, cell engineering has the dual characteristics of scientific exploration and social responsibility. Therefore, we should aim at cultivating the scientific spirit and social responsibility of students, and promote their all-round development through the reform of teaching contents and methods. Based on the main channel of the classroom, we strive to explore the ideological and political elements contained in the teaching content fully, integrate with the teaching of professional knowledge and skills organically, and have achieved good results in the process of teaching practice. This paper focuses on five aspects to detail the ideological and political contact combination strategy of the cell engineering course, including the combination of “teaching and educating” and “teaching by example”, the combination of “professional contents” and “ideological and political elements”, the combination of “elder stories” and “patriotism”, the combination of “historical review” and “frontier outlook”, the combination of “ideological and political methods” and “professional characteristics”, and strive to achieve moral education and cultivate people, thereby educating them. By organically integrating ideological and political elements into the cell engineering curriculum, we can promote the cultivation of their ideological quality and social responsibility. While imparting professional knowledges, it guides students to establish a correct vision on life and values, and render them cell engineering talents with scientific spirits, ethical consciousness, and social responsibility. It also provides certain references for the ideological and political construction of other peers or other courses. [ABSTRACT FROM AUTHOR]

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.)

Objective To observe the expression changes of serum microRNA-199a-5p (miR-199a-5p) and microR‑ NA-142-3p (miR-142-3p) in patients with severe preeclampsia (sPE), and to analyze their relationships with maternal vascular endothelial injury and perinatal outcomesso as to provide reference for the improvement of perinatal outcomes. Methods A total of 200 patients with sPE (observation group) and 200 healthy pregnant women (control group) were se‑ lected. The serum levels of miR-199a-5p and miR-142-3p were measured by RT-PCR. The serum levels of soluble endo‑ thelial growth factor (sEng), soluble vascular endothelial growth factor receptor-1 (sFlt-1), endothelin-1 (ET-1) and vas‑ cular endothelial growth factor (VEGF) were detected by enzyme-linked immunosorbent assay. Pearson correlation analy‑ sis was used to analyze the correlations between serum miR-199a-5pmiR-142-3p and vascular endothelial function-relat‑ ed indicators in the observation group. According to perinatal outcomesthe observation group was divided into the poor outcome group (29 cases) and good outcome group (171 cases). Univariate analysis and multivariate Logistic regression analysis were used to analyze the relationships between serum miR-199a-5pmiR-142-3p expression and perinatal out‑ comes. Results Compared with the control groupthe expression levels of serum miR-199a-5p and VEGF levels decreasedand the expression of serum miR-142-3p and the levels of sEngsFlt-1 and ET-1 increased in the observation group (all P<0. 05). The expression of serum miR-199a-5p in the observation group was negatively correlated with the lev‑ els of sEngsFlt-1 and ET-1and was positively correlated with the level of VEGF (all P<0. 05 ). The expression of se‑ rum miR-142-3p was positively correlated with the levels of sEngsFlt-1 and ET-1and was negatively correlated with the level of VEGF (all P<0. 05). Significant differences were found in the age the proportion of early-onset sPE the proportion of concurrent edema the proportion of concurrent eclampsia the proportion of concurrent placental abruption the proportion of concurrent postpartum hemorrhage the expression of serum miR-142-3pand the expression of serum miR199a-5p between the poor outcome group and the good outcome group (all P<0. 05). Multivariate Logistic regression analysis showed that early-onset sPE placental abruption and high expression of miR-142-3p were risk factors for poor perinatal outcome of sPE (all P<0. 05), and high expression of miR-199a-5p was a protective factor for poor perinatal outcome of sPE (P<0. 05). Conclusions The expression of serum miR-199a-5p in patients with sPE decreases and the expression of miR-142-3p increaseswhich are related to vascular endothelial injury. The high expression of miR-142-3p is a risk factor for the poor perinatal outcome of sPEand the high expression of miR-199a-5p is a protective factor for the poor perinatal outcome of sPE. [ABSTRACT FROM AUTHOR]

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

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

Copyright of Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue is the property of Beijing Research Institute of Mining & Metallurgy Technology Group and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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

Objective To investigate the prevalence of frailty in elderly hypertension patients by metaanalysis. Methods Chinese and foreign databases were searched from the construction of the library to May 10, 2022, including China National Knowledge Infrastructure(CNKI), Wanfang Database, VIP Journal Database, China Biomedical Literature Service System(CBM), PubMed, Cochrane Library, Embase, and Web of Science databases. Screening was performed according to the inclusion and exclusion criteria, the quality of the included literature was assessed, data were extracted, and the Stata 17. 0 software was used for meta-analysis. Results A total of 46 articles were included, including 29 216 elderly patients with hypertension and 7 513 patients with frailty. The overall prevalence of frailty in elderly hypertension patients was 32% [95% confidence interval(95%CI):27-36], and the prevalence of pre-frailty in elderly hypertension patients was 50%(95% CI:42-58), the prevalence of male frailty in elderly patients with hypertension was 15%(95%CI:12-18), and the prevalence of female frailty in elderly patients with hypertension was 14%(95%CI:11-17). The prevalence of frailty diagnosed by different assessment tools from high to low was respectively the comprehensive frailty assessment Instrument(59%), the tilburg frailty indicator(50%), the frailty index-20(44%), the kihon checklist(37%), comprehensive geriatric assessment(33%), the FRAIL scale(29%), clinical frailty scale (28%), frailty index(26%), the Fried frailty phenotype(23%) and 4mGait gait assessment method(20%). The prevalence of frailty in elderly hypertension patients among different countries: Poland(67%), South Korea( 29%), China(30%), Brazil(24%), Japan(24%) and United States(8%); prevalence of frailty in different years:2016(67%), 2019(43%), 2017(38%), 2022(38%), 2021(30%), 2020(28%), 2018(24%), 2015(23%) and 2014(10%). The prevalence of frailty among elderly hypertension patients in rural areas, elderly care institutions, health care units, community/inpatient settings, and inpatient/outpatient clinics was 16%, 19%, 44%, 17% and 17%, respectively. The prevalence of frailty in elderly hypertension patients diagnosed with Tilburg frailty Index was higher than that diagnosed with Fried frailty phenotype, and the prevalence of frailty in elderly hypertension patients hospitalized and community(37% and 32%, respectively) was higher than that in outpatient department(30%). Conclusion The available epidemiological evidence shows that elderly patients with hypertension have a high prevalence of frailty. [ABSTRACT FROM AUTHOR]

Code comments can help developers quickly understand code and reduce code maintenance costs. In order to preserve the structure information of the code, the classical Seq2Seq model will compress the structure information of the code into sequences, resulting in the loss of the structure information. A Tree-LSTM encoder is proposed to directly transform the code into an abstract syntax tree for encoding, so that the comments generation model can effectively obtain the structure information of the code and improve the effect of comments generation. The Tree2Seq model based on attention mechanism is adopted to realize the code comments generation task, which avoids the situation that the encoder compresses all input information into a fixed vector, resulting in partial information loss. The experiments are carried out on two programming language datasets, Java and Python. Three automatic evaluation indexes commonly used in machine translation are used for evaluation and verification, and some test data are selected for manual evaluation. Experimental results show that Tree2Seq model based on attention mechanism can provide more comprehensive and rich semantic structure information for decoder, and provide guidance for subsequent experimental analysis and improvement.. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Northwest A & F University - Natural Science Edition is the property of Editorial Department of Journal of Northwest A&F University (Natural Science 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 Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue is the property of Beijing Research Institute of Mining & Metallurgy Technology Group and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue is the property of Beijing Research Institute of Mining & Metallurgy Technology Group and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board 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.)

在实验基础上得出了Gemini表面活性剂二氯化N，N，N'，N'-四甲基-N，N'-双十六烷基-2-丙醇-1，3-铵(DTDPA)的合成工艺.通过FT-IR光谱确认结构，使用WCT-2型微机差热天平进行热分析，测定DTDPA的表面活性.结果表明，DTDPA的结构独特，与单链单头基表面活性剂相比具有优异表面活性.研究DTDPA对中原油田原油-水体系表面张力变化的影响，表明DTDPA可以有效降低原油-水体系表面张力.通过对DTDPA-PAM二元复合驱替体系粘度变化的研究，表明二元无碱体系的粘度保持率具有明显的优势.

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.)

以前人应用物理性指标划分风化壳垂直分带为基础,对长江三峡坝区各地貌部位的采样,用X射线荧光光谱仪对样品进行化学成分分析,用显微镜对矿物组成进行鉴定,选取了12个具有代表性的、能反映化学风化特征的风化系数,进行了化学风化特征值的详细计算,对风化壳垂直分带的元素迁移规律和化学特征值做了系统描述,希能为三峡坝区风化壳的垂直分带提供化学特性指标,以完善风化壳垂直分带指标体系.

The traditional research on educational knowledge graph is mostly text-oriented and ignores the interpretation function of multimodal resources to educational knowledge and its rich characteristic representation. In order to better promote the follow-up research work, this paper reviews the educational knowledge graph from the perspective of multi-modal resources. Firstly, it introduces the concept and classification of knowledge graph. Secondly, it introduces the connotation of the educational knowledge graph, summarizes the definition, classification and construction framework of educational knowledge graph; Thirdly, combined with deep learning represented by neural network, it introduces the construction technology of educational knowledge graph. Finally, it summarizes the specific application of the educational knowledge graph, points out the problems existing in current research and future research directions. [ABSTRACT FROM AUTHOR]

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 Journal of Chinese Mass Spectrometry Society is the property of Journal of Chinese Mass Spectrometry Society 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.)