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Objective To investigate the effect of f fine nursing management for patients undergoing simultaneous bilateral lobectomy. Methods Totally 52 patients under simultaneous bilateral lobectomy were randomly divided into the control group and observation group, with 26 cases in each group. The control group received routine nursing interventions during perioperative period. The observation group was given fine nursing management. The indwelling time of catheter, length of postoperative hospital stay, hospitalization costs and postoperative complications were recorded. Results The indwelling time of drainage tube and length of postoperative hospital stay in the observation group were shorter than those in the control group(P＜0. 05). There was a case of pneumothorax, 1 case of stage I pressure injury, 5 cases of arrhythmia, 2 cases of breathing difficulties and 2 cases of incision infection in the observation group. There was a case of pneumothorax, 3 cases of stage I pressure injury, 5 cases of arrhythmia, 1 case of breathing difficulties, 5 cases of incision infection and 1 case of death in the control group. Conclusion Implementation of fine nursing management is effective to shorten indwelling time of drainage tube and length of postoperative hospital stay of patients undergoing simultaneous bilateral lobectomy. (目的 探讨同期双侧肺叶切除围手术期实施精细化护理干预的效果。方法 选取2015年1月—2021年12月医院收治的行同期双侧肺叶切除患者52例, 随机分为对照组和观察组, 各26例。对照组围手术期采取常规护理, 观察组围术期采取精细化护理干预。记录和分析两组患者引流管留置时间、术后平均住院日、住院费用和术后并发症。结果 观察组患者引流管留置时间、术后平均住院日较对照组缩短, 差异有统计学意义(P＜0. 05)。观察组术后发生气胸1例, I期压疮1例, 心律失常5例, 呼吸困难2例, 切口感染2例; 对照组术后气胸1例, I期压疮3例, 心律失常5例, 呼吸困难1例, 切口感染5例, 死亡1例。结论 同期双侧肺叶切除围手术期实施精细化护理干预, 能缩短患者引流管留置时间和术后平均住院日, 对促进患者术后康复具有积极意义。)

Copyright of Low-Carbon Chemistry & Chemical Engineering is the property of Low-Carbon Chemistry & Chemical 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.)

Homestays have gradually become an important lever in rural revitalization strategies, and research on tourist satisfaction in rural homestays is crucial for the high-quality development of the homestay industry. This study takes Guangzhou rural homestays as an example, based on the perspective of tourists, mainly through questionnaire surveys and other means, using IPA analysis method to empirically analyze the satisfaction of Guangzhou rural homestays. The results show that in the field of rural homestays, Guangzhou urgently needs improvement in infrastructure, personalized services, and the atmosphere of homestays. Propose targeted countermeasures and suggestions: improve the basic facilities of homestays and ensure the accommodation experience of tourists; improve tourism routes and transportation, and add parking spaces; enhance service awareness and provide personalized services; strengthen the atmosphere creation of homestays, etc. [ABSTRACT FROM AUTHOR]

Objective To provide a theoretical basis for optimizing and improving the culture medium of Yersinia pestis, the effects of different species and different concentrations of animal blood on the growth of Yersinia pestis were investigated. Methods Ten kinds of animal blood including rat blood, rabbit blood and guinea pig blood at four concentrations of 0. 1 %, 0. 5 %, 1 % and 2 % were used as blood stimulators to culture Yersinia pestis in the medium. The culture results were observed and the corresponding statistical analysis was carried out. Results The effect of 10 kinds of animal blood on the number of Yersinia pestis colonies at 1 % concentration was different (P = 0. 015 < 0. 05), and pig blood was better than chicken blood (P = 0. 026 < 0. 05). The effect of four concentrations of pig blood on the number of Yersinia pestis colonies was statistically significant (P = 0. 037 < 0. 05), and it was better than the blank at 1 % concentration (P = 0. 002 < 0. 05). The effects of ten kinds of animal blood at four concentrations on the length of Yersinia pestis were statistically significant (P < 0. 001). The difference in the effect of four concentrations of blood on the length of Yersinia pestis in ten animals was also statistically significant (P < 0. 001). Conclusion When observing the number of colonies, the optimal choice is 1% pig blood. In addition, low concentration and easy - to - obtain blood stimulants can be selected as far as possible. To cultivate a better length of Yersinia pestis, the optimal choice is 0. 1% rabbit blood, which can achieve the desired experimental results and save costs. In addition, using the Herxheimer s sensitive medium with only blood stimulator to culture Yersinia pestis, the characteristics of the strain will not undergo L 一 type transformation, and the overall characteristics of the strain are stable, which is of great significance for the stable passage and preservation of the strain. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Geodesy & Geodynamics (1671-5942) is the property of Editorial Board Journal of Geodesy & Geodynamics 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 Industrial Water Treatment is the property of CNOOC Tianjin Chemical Research & Design Institute 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 Modern Food Science & Technology is the property of Editorial Office of Modern Food Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Continue Education Research is the property of Harbin Normal 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 Journal of Drainage & Irrigation Machinery Engineering / Paiguan Jixie Gongcheng Xuebao is the property of Editorial Department of Drainage & Irrigation Machinery 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.)

Based on the existing algorithms,we further study relaxed modulus-based synchronous block multisplitting multi-parameters methods for linear complementarity problem. Furthermore, we give the weaker convergence results of our new method in this paper when the system matrix is a block H+-matrix. Therefore, our results provide a guarantee for the optimal relaxation parameters.

目的 研究下肢动脉硬化闭塞症（peripheral artery disease，PAD）并发颅内/外动脉狭窄的发生率、危 险因素以及与临床症状的关系。 方法 选取2016年7月-2017年7月PAD患者共155例，收集患者临床资料。PAD临床症状根据Fontaine 分类分为I 期无症状，II 期间歇性跛行，II I 期静息痛，I V期足趾溃疡、坏疽。根据经颅多普勒超声 （transcranial Doppler，TCD）结果将颅内外动脉狭窄程度分为无狭窄、轻中度狭窄（＜70%）和重度狭窄 或闭塞（≥70%）。分析颅内/外动脉狭窄在PAD患者中的发生率，PAD合并颅内/外动脉狭窄的危险因 素以及PAD下肢缺血程度及围手术期卒中发生与颅内/外动脉狭窄的关系。 结果 本研究中合并颅内和/或颅外动脉狭窄的PAD患者共99例（63.9%），其中颅外段动脉狭窄与 颅内段动脉狭窄分别为66例（42.6%）和67例（43.2%）。PAD合并颅外段动脉重度狭窄或闭塞27例 （17.4%），合并颅内段动脉重度狭窄或闭塞4例（2.6%）。年龄[比值比（odds ratio，OR）1.041，95%可信 区间（confidence interval，CI）1.004～1.080，P =0.030]和吸烟（OR 2.728，95%CI 1.125～6.619，P =0.026） 是PAD合并颅外段动脉狭窄的危险因素。糖尿病（OR 2.196，95%CI 1.079～4.470，P =0.030）是PAD合 并颅内段动脉狭窄的危险因素。吸烟（OR 3.57，95%CI 1.078～11.411，P =0.037）是PAD合并颅内/外段 动脉重度狭窄的危险因素。与无颅内动脉狭窄患者相比，PAD合并颅内动脉狭窄患者更容易发生严重 下肢缺血症状（Ⅱ期和Ⅲ期）（67.2% vs 50.0%，P =0.032）。与轻中度颅外段动脉狭窄相比，PAD合并 颅外段动脉重度狭窄或闭塞的患者更容易发生围手术期卒中（17.4% vs 1.1%，P =0.006）。 结论 PAD合并颅内/外动脉狭窄发病率较高，颅内动脉狭窄患者PAD临床症状更严重，而颅外动脉 重度狭窄或闭塞则可能导致围手术期卒中发生率升高。 Abstract: Objective To investigate the incidence, risk factors and clinical symptoms of peripheral artery disease (PAD) complicated by intra-/extractranial artery stenosis. Methods A total of 155 patients with PAD from July 2016 to July 2017 were selected and the clinical data of the patients were collected for the study. The clinical symptoms of PAD were classified according to Fontaine classification: stage I, without symptoms; stage II, intermittent claudication, stage III, resting pain; stage IV, toe ulcers and gangrene. The degree of intra-/ extracranial artery stenosis was divided into non-stenosis, mild to moderate stenosis (

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Copyright of Science Technology & Engineering is the property of Chinese Society of Technology Economics 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.)

Leisure plays an important role in people's happiness; therefore, facilitating participation in leisure activities has become one of the pathways to improve urban residents' wellbeing and realize high-quality new urbanization. This study focuses on migrant workers' leisure behavior and quality of life. Based on the selfselection hypothesis and structural equation modeling analysis, this study explores the influence of both leisure environment and leisure attitude on leisure behavior. First, our analysis of the leisure environment revealed that leisure behaviors differed according to leisure environments. Residents of resource-rich communities had the longest leisure time, a medium leisure distance, and a positive leisure attitude. Communities with medium leisure resources had the shortest leisure time and closest leisure distance. Communities with scarce leisure resources had the longest leisure distance and the most negative leisure attitude. Second, by examing the match of leisure attitudes and leisure environments, we found that the average leisure time of matching groups was longer, and they generally spent their leisure time within 1 kilometer around the community. Furthermore, the leisure time of residents in communities with scarce leisure resources did not show significant differences. For the mismatching groups of leisure attitudes and environments, about 60% of the residents spent less than 2 hours on average per day, and the leisure distance did not show any significant difference. Third, the structural equation modeling analysis indicated that both attitude and environmental attributes can affect migrant workers' leisure behavior; they further interact with each other and jointly determine residents' leisure behavior. The temporal (leisure time) and spatial (leisure distance) dimensions of leisure behavior are influenced by different mechanisms. Leisure attitude has the most direct effect on leisure time, while the effects of leisure environment on leisure distance are complex. Socio-demographic attributes affect leisure environment, leisure attitude, and leisure behavior. Men and women do not differ in terms of leisure time, but women's leisure distance is greater than men's. Age has no significant effect on residents' leisure behavior, but younger persons enjoy more leisure. Monthly household income has a significantly negative effect on residents' leisure time and leisure distance, while it has a significantly positive effect on leisure environment. Persons with higher education pay more attention to their leisure life, and spend more time and travel to participate in more leisure activities. This study makes three contributions. First, in the context of leisure scenarios, it promotes the combination of self-selection effect and rational behavior theory, and fully considers the role played by attitude in the mechanism of environmental influence on behavior. Existing studies of transportation mostly follow functionalism in the pursuit of efficiency, and the scope and ability of residents' self-selection is limited. This study of leisure behavior empirically demonstrates the importance of leisure environment and leisure concepts cultivation. Second, the study of migrant workers' leisure provides inspiration for the construction of new urbanization. In China's rapid urbanization, migrant workers have made positive contributions to the development of cities at the sacrifice of their youth and health. The leisure self-selection effect can be used to improve residents' leisure participation and subjective well-being by enhancing the community's leisure environment. Third, the migrant worker group is diversifying. With the deepening of new urbanization, their daily lives are changing and they are making continual efforts to adapt to urban life, rather than remaining passive. [ABSTRACT FROM AUTHOR]

目的　总结 1例酒精性肝硬化并发食管胃静脉曲张出血 (EVB) 伴早期食管癌的治疗方法。方法　回顾 性分析1例酒精性肝硬化并发 EVB 伴早期食管癌患者的临床资料，总结其治疗方案。结果　患者中年男性，因“黑 便 2 d，腹痛、呕血5 h”入院，既往有“酒精性肝硬化，食管静脉曲张 (重度) ，门脉高压性胃病”病史 2 年余，“食管中上 段黏膜病变，早癌可能”病史 2 年余，“胃底静脉曲张组织胶注射”手术史4月余，“内镜下食管曲张静脉套扎术”手术 史9 d，饮酒史 30 余年，平均每日饮酒量折合乙醇约 200 g。入院后行急诊内镜检查提示急性上消化道出血，未见明 显活动性出血，给予药物止血、输血、保肝及营养支持等治疗。首次入院3个月后患者返院复查，明确诊断为肝硬化 失代偿期、门静脉高压、EVB、早期食管癌，既往有 EVB 史，符合经颈静脉肝内门体静脉分流术 (TIPSS) 手术适应证， 有内镜黏膜下剥离术 (ESD) 手术指征。排除禁忌证，于首次入院 3个月后行 TIPSS，术后随访 2月余，首次入院 4个 月胃镜检查显示曲张静脉直径较前缩小。排除禁忌证，于首次入院 6 个月行食管静脉曲张内镜下预防性套扎术，套 扎后接着进行早期食管癌 ESD，手术顺利，术后随访 10 个月，病情稳定。结论　对于肝硬化并发EVB伴早期食管癌 的患者，在对黏膜病变处采取内镜治疗等手术操作前可先行 TIPSS，TIPSS 可同时改善食管和胃底静脉的曲张程度， 能减少内镜手术中及术后再出血风险。 [ABSTRACT FROM AUTHOR]

The article systematically summarizes the research achievements in the content and methods of rural tourism innovation at home and abroad from the perspectives of innovation influencing factors, innovation mechanisms, innovation modes, innovation paths, innovation evaluation models, as well as qualitative and quantitative methods such as field investigation, field testing, and numerical analysis. Prospects were made for the further improvement of the deconstruction and reconstruction of the influencing factors of rural tourism innovation, the innovation mode and improvement path of rural tourism, the comprehensive integration of mechanisms and research methods to assist in rural poverty reduction and rural community recovery. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Nanjing Medical University: Natural Sciences is the property of Journal of Nanjing Medicial University (NMU) Medical Publications Center 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 Industrial Water Treatment is the property of CNOOC Tianjin Chemical Research & Design Institute 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 Chongqing University of Technology (Natural Science) is the property of Chongqing 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 Molecular Science is the property of Journal of Molecular Science 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 Chinese Journal of Preventive Veterinary Medicine / Zhongguo Yufang Shouyi Xuebao is the property of Chinese Journal of Preventive Veterinary 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.)

Copyright of Electric Power Engineering Technology is the property of Editorial Department of Electric Power Engineering 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.)

An e-commerce closed-loop supply chain game model under the subsidy policy was constructed based on different cooperation models of partial authorization, full delegation and two-way competition. The key factors for manufacturers to engage in product green innovation were explored and the impact of government subsidies and innovation cost factors on product green innovation and pricing decisions was analyzed. It was shown that manufacturers make green innovation only when government subsidies or cost savings from green innovation are large enough. Government subsidies and manufacturers’ willingness to make green innovation are the highest under the partial authorization model. In contrast, government subsidies are the lowest under the two-way competition model and manufacturers’ willingness to make green innovation is the lowest under the full delegation model. Green innovation under the subsidy policy can reduce the selling price, increase the recycling price, and significantly improve manufacturers’ profit. [ABSTRACT FROM AUTHOR]

Copyright of Mountain Research (10082786) is the property of Mountain Research 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 Tianjin Medical Journal is the property of Tianjin Medical Journal 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 Automation Equipment / Dianli Zidonghua Shebei is the property of Electric Power Automation Equipment 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.)

To evaluate the application value of serum 25-hydroxyvitamin D [25 (OH)D], anti-Mullerian hormone (AMH) and inhibin B (INHB) in pregnancy outcome of in vitro fertilization-embryo transfer (IVR-ET) in patients with diminished ovarian reserve (DOR). 292 DOR patients who underwent IVR-ET assisted pregnancy in our hospital from August 2019 to October 2021 were selected, according to the pregnancy outcome after assisted pregnancy, they were divided into pregnancy group (n=158) and non-pregnancy group (n=134), the clinical data and the levels of serum 25(OH)D, AMH and INHB in the two groups were compared, the predictive value of serum 25 (OH)D, AMH and INHB in separate and combination detection for pregnancy failure was evaluated by the receiver operating characteristic (ROC) curve. The influencing factors of pregnancy failure were analyzed by single factor analysis and multiple logistic regression. The levels of serum 25 (OH)D, AMH and INHB in pregnant group were significantly higher than those in non-pregnancy group (P<0.05). ROC curve analysis result showed that the area under the curve (AUC) of serum 25(OH)D, AMH, INHB and their combined detection in predicting IVR-ET pregnancy failure in patients with DOR were 0.714 (0.631~0.802), 0.801 (0.731~0.852), 0.634 (0.578~0.741), 0.853 (0.806~0.913) respectively, the AUC of the combined detection in predicting IVR-ET pregnancy failure in patients with DOR was higher than those in the separate detection. Single factor analysis results showed that the number of sinus follicles<5, the number of retrieved eggs<8, follicle stimulating hormone (FSH) / luteinizing hormone (LH)≥ 1.8, serum 25 (OH)≤ 25.05 μg/L, serum AMH≤ 1.08 ng/mL, serum INHB≤ 84.28 pg/ml in the non-pregnancy group were significantly higher than those in pregnancy group (P<0.05). Multiple logistic regression analysis results showed that FSH/LH≥1.8, serum 25(OH)D≤ 25.05 μg/L, serum AMH≤ 1.08 ng/mL, serum INHB≤ 84.28 pg/mL were the risk factors of IVR-ET pregnancy failurein patients with DOR (P<0.05). The low levels of serum 25(OH)D, AMH and INHB are related to IVR-ET pregnancy failure in patients with DOR, and the combined detection of the above index levels has high auxiliary predictive value for IVR-ET pregnancy failure. [ABSTRACT FROM AUTHOR]

Objective: To study the relationship between serum leptin, irisin, sex hormone binding globulin (SHBG) and aquaporin 8 (AQP8) and sex hormone levels and pregnancy outcome in patients with polycystic ovary syndrome (PCOS) infertility undergoing in vitro fertilization-embryo transfer (IVF-ET). A total of 293 patients with PCOS infertility undergoing IVF-ET who were admitted to our Hospital from January 2020 to January 2022 were selected, and the patients were divided into clinical pregnancy failure group (n=118) and clinical pregnancy success group (n=175) according to whether or not the pregnancy was clinically successful. Clinical data of patients were collected, and serum leptin, irisin, SHBG and AQP8 levels were measured. Pearson's correlation coefficient was used to analyze the correlation between serum leptin, irisin, SHBG and AQP8 levels and sex hormone levels in PCOS infertility, multivariate Logistic regression was used to analyze influencing factors of pregnancy outcome in PCOS infertility patients undergoing IVF-ET, and receiver operating characteristic (ROC) curves were used to analyze the value of serum leptin, irisin, SHBG and AQP8 levels alone and in combination to predict clinical pregnancy failure in PCOS infertility patients undergoing IVF-ET. Compared to the clinical pregnancy success group, the clinical pregnancy failure group had lower follicle stimulating hormone (FSH), gonadotropin (Gn) dosage, number of eggs gained, fertilization rate, excellent embryo rate and SHBG levels, and higher luteinizing hormone (LH), LH/FSH, testosterone (T), insulin resistance index (HOMA-IR), leptin, irisin and AQP8 levels. Pearson correlation coefficients showed that serum leptin, irisin and AQP8 were negatively correlated with FSH level, and positively correlated with LH, LH/FSH and T levels in patients with PCOS infertility (all P＜0.05). SHBG was positively correlated with FSH level, and negatively correlated with LH, LH/FSHand T levels (all P＜0.05). Multivariate Logistic regression analysis showed that LH/FSH, T, HOMA-IR, leptin, irisin and AQP8 were independent risk factors for clinical pregnancy failure in patients undergoing IVF-ET for PCOS infertility, and excellent embryo rate and SHBG were independent protective factors (all P＜0.05). The ROC curves showed that the area under the curve (AUC) for serum leptin, irisin, SHBG and AQP8 levels in combination to predict clinical pregnancy failure in PCOS infertility patients undergoing IVF-ET were greater than each indicator alone. Serum leptin, irisin, SHBG and AQP8 levels are associated with FSH, LH, LH/FSH, T levels and clinical pregnancy failure in PCOS infertility patients undergoing IVF-ET, and it is helpful to predict the pregnancy outcome of patients with PCOS infertility. [ABSTRACT FROM AUTHOR]

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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 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.)

In order to improve the stability of power system operation, in view of the problem that the line power and node voltage will exceed the limit due to the influence of uncertain factors during the operation of the power grid, considering the two uncertain factors of wind power and load fluctuation, a risk value index of over-limit risk is proposed to identify the vulnerability of the power grid. link. First, define the risk value index of line power over-limit and node voltage over-limit risk value respectively; then, use the n-k method to simulate the situation of line disconnection and node failure in the power grid respectively, and obtain the line over-limit risk value and node over-limit risk Lines and nodes are sorted by value; and the binary decision diagram (BDD) algorithm is used to improve the identification efficiency of the n-k method; then experiments are carried out on the IEEE 30-node system and the IEEE 118-node system to verify the out-of-limit risk value index and the n-k identification method effectiveness and universality; Finally, the line disconnection and node fault are simulated respectively, and the identification indicators and methods are evaluated based on the load shedding of the IEEE 118-node system. [ABSTRACT FROM AUTHOR]

To explore the influencing factors and mechanism of people’s trust on autonomous vehicles(AVs), the trust model of AVs was designed from six perspectives: information content, information carrier, information channel, system transparency, technical capability and situation management. The structure validity, convergent validity and discriminant validity of confirmatory factor analysis, the intermediary effect analysis and path analysis were used for the fitting test of the structural equation model. It was found that information channel, system transparency and information carrier have significant effect on AVs trust. Information content, information carrier and information channels not only affect AVs trust directly, but also affect AVs trust through the intermediary variable of system transparency. [ABSTRACT FROM AUTHOR]

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 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 the Chinese Society of Rare Earths is the property of Editorial Department of Journal of the Chinese Society of Rare Earths 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 Xinjiang Agricultural Sciences is the property of Xinjiang Agricultural Sciences 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 Geodesy & Geodynamics (1671-5942) is the property of Editorial Board Journal of Geodesy & Geodynamics 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 lithium-rich cathode material xLi2MnO3· (1-x) LiMO2 (M=Ni, Co, Mn, etc., 0< x< 1) has the huge advantages of high capacity (up to 300 mA·h/g or more) and low cost, and is known as probably the most important next-generation cathode material for lithium-ion batteries. It has received great attention and extensive research from various countries. At present, this material still has problems such as low initial (first cycle) Coulomb efficiency, poor cycle performance, and serious voltage attenuation, which all seriously hinder the development and practical application of the material. In order to solve these problems of this material, especially its insufficient cycle stability and voltage attenuation, a lot of research work has been carried out on the degradation mechanism and stability improvement of the lithium-rich cathode material, and some important progresses have been made in recent years. This article introduces the structure and working principle of the lithium-rich cathode material, focusing on the research work in recent years on the degradation mechanism of the lithium-rich cathode material and improving the stability of the lithium-rich cathode material. The further research work has been prospected. [ABSTRACT FROM AUTHOR]

Copyright of Food Research & Development is the property of Food Research & Development 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 Brewing is the property of China Brewing 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.)