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针对传统高斯混合模型（Gaussian mixture model，GMM）聚类算法中计算复杂、收敛速度慢和人为确定聚类数目时存在盲目性和主观性等不足，提出了一种基于改进GMM的变电站负荷聚类算法。以传统GMM聚类算法为基础，采用k均值（k-means）算法确定初始聚类中心。减少了GMM聚类算法迭代步骤，提高了输出结果的稳定性。输出不同聚类数下聚类结果的Davies-Bouldin（DB）指标、Calinski-Harabasz（CH）指标和轮廓系数（silhouette coefficient，SC），应用熵权法确定不同评价指标所占权重，构建聚类评价混合指数（cluster evaluation mixed index，CEM）。将聚类评价混合指数最大值对应的聚类个数作为最佳聚类数目，再次输入到改进GMM聚类算法中，得到变电站负荷聚类结果和聚类中心。结果表明，所提方法增强了传统GMM聚类算法的计算速度和稳定性，对变电站负荷具有良好的聚类综合能力，有助于实现聚类结果最优化。

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 Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering 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 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 Journal of Mine Automation is the property of Industry & Mine Automation Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Railway Standard Design is the property of Railway Standard Design 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 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.)

Objective To investigate the efficacy and safety of evolocumab to reduce lipid levels in patients with acute coronary syndrome (ACS) after percutaneous coronary intervention (PCI). Methods Totally 145 ACS patients who underwent PCI were randomly divided into the observation group (73 cases) and the control group (72 cases). Patients in the control group received conventional drug treatment according to the perioperative medication guidelines for ACS, while patients in the observation group received subcutaneous injection of evolocumab 140 mg per dose, once every two weeks, on the basis of the control group's treatment. Both groups were treated for one month. Changes in lipid-related indicators before and after treatment, including total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), apolipoprotein B (ApoB), lipoprotein (a) [Lp(a)], apolipoprotein A1 (ApoA1), ApoB/ApoAl ratio, and the proportion of LDL-C <1. 8 mmol/L and LDL-C <1.4 mmol/L, were recorded. Additionally, the proportion of patients whose LDL-C decreased by >50% and was <1.4 mmol/L compared to baseline was recorded. Safety-related indicators, including fasting plasma glucose (FPG), alanine aminotransferase (ALT), creatinine (Cre) before and after treatment, adverse reactions, and major adverse cardiovascular events (MACE) were also recorded. Results The proportions of LDL-C <1.8 mmol/L and <1.4 mmol/L increased in both groups after treatment in comparison with those before treatment, with more significant increase in the observation group (both P< 0.05). The proportion of patients in the observation group whose LDL-C decreased by >50% and was <1.4 mmol/L compared to baseline was higher than that in the control group (P<0.05). TC, TG, LDL-C, Lp(a), ApoB, and ApoB/ApoA1 decreased, and ApoAl increased in both groups after treatment in comparison with those before treatment, with more significant changes in the observation group (all P<0.05). No significant differences were found in FPG, ALT, or Cre between the two groups before and after treatment (all P>0.05). Muscle pain occurred in one patient in both the observation and control groups, and MACE occurred in 0 and 1 patient in the observation and control groups, respectively, with no significant differences between the two groups (all P>0.05). Conclusion Subcutaneous injection of evolocumab helps reduce lipid levels in patients with ACS after PCI and is of high safety. [ABSTRACT FROM AUTHOR]

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

[Objective] In order to study the influence of forest factors on the surface fuel load of Pinus yunnanensis forest, explore the mechanism and relationship of forest factors on the surface fuel load, and provide scientific basis for forest fire prevention and surface fuel load management in the research area. [Method] Taking Hanyuan County of Ya' an City as the study area, the standard plots and quadrats were set up in the Pinus yunnanensis forest to investigate the surface fuel load, and analyze the relationship between stand factors and surface fuel load. [Result] The results showed that the fuel load of the tree layer was significantly correlated with canopy density, stand density, and herbaceous coverage; the fuel load of shrub layer is significantly correlated with shrub coverage; the herbaceous fuel load is significantly correlated with canopy density, stand density, and herbaceous coverage; the fuel load of litter is significantly correlated with canopy density, forest density, coverage and humus thickness. The diherbaceous coverage, and litter thickness; the fuel load of humus was significantly correlated with herb on surface fuel load is significant, while the indirect impact of canopy rect impact of average diameter at breast height and average tree height density and stand density on surface fuel load is significant. [Conclusion] The factors of Pinus yunnanensis forest affected the surface fuel load through direct and indirect effects, and the factors that affect the fuel load at different levels are also different. When conducting fuel management, it is necessary to select fuel management methods and control measures according to local conditions. [ABSTRACT FROM AUTHOR]

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

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

Copyright of Journal of Soil & Water Conservation (1009-2242) is the property of Institute of Soil & Water Conservation 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 Pearl River is the property of Pearl River Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher 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 Power Generation Technology is the property of Power Generation 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 Petroleum Geology & Oilfield Development in Daqing is the property of Editorial Department of Petroleum Geology & Oilfield Development in Daqing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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

Copyright of 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 Journal of South China Normal University (Natural Science Edition) / Huanan Shifan Daxue Xuebao (Ziran Kexue Ban) is the property of Journal of South China Normal University (Natural Science Edition) 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 Experimental Technology & Management is the property of Experimental Technology & Management 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 New Media Research is the property of New Media 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.)

Dalian Bay subsea tunnel is located in the area of the district-level immovable cultural relic Darini Port Former Site and Dalian Port Affiliated Buildings in Zhongshan District, Dalian. To ensure the smooth construction of the project, cultural relics preservation design work have been carried out on the district-level immovable cultural relic-the North Breakwater and the Wharf C along the subsea tunnel. Strictly abide by national laws and regulations on cultural relics preservation, ensure the safety of cultural relics structure, restore the style and appearance of cultural relics, and maintain the historical pattern of cultural relics unchanged. Based on this, a cultural relic preservation design concept of "disassembling and reassembling" was formulated, and partial disassembling was carried out on the North Breakwater and the Wharf C. After completing the subsea tunnel project, the original appearance of the cultural relics was restored. [ABSTRACT FROM AUTHOR]

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

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

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

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

BACKGROUND: Although traditional therapies, including drugs and surgery, cannot repair the damaged myocardial tissue, the mortality rate of myocardial infarction remains high. Stem cells provide the possibility to solve this problem due to their self-renewal and multi-directional differentiation potential. OBJECTIVE: To analyze the research progress of stem cell therapy for myocardial infarction in recent ten years by bibliometric analysis. METHODS: The related articles on stem cells and myocardial infarction published in SCI-E and SSCI from January 1, 2012 to December 1, 2022 in the Web of Science database were searched. EXCEL, CiteSpace and VOSviewer software were used to make statistical and visualization analyses of the data such as the number of publications, authors, institutions, journals, countries and keywords. RESULTS AND CONCLUSION: A total of 3 210 core articles were published, and the total number increased year by year. hausenloy,derek j. is the author with the largest number of publications, China is the country with the largest number of publications, and the Fourth Military Medical University is the institution with the largest number of publications. The research hotspots in this field are changing from cell experiments and animal experiments to clinical trials. In the past ten years, research in this field has been highly popular and still has great development prospects. It is necessary to promote international and interagency exchange and learning, and further explore the role of stem cells in the treatment of myocardial infarction. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Ballistics / Dandao Xuebao is the property of Journal of Ballistics 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 Hubei Open Vocational College is the property of Journal of Hubei Open Vocational College 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 Hubei Open Vocational College is the property of Journal of Hubei Open Vocational College 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 Telecommunication Engineering is the property of Telecommunication 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.)

[Objective] To study the insecticidal activities of essential oil of Asarum heterotropoides against Bactrocera dorsalis by fumigation and touch.killing, and preliminarily determine the insecticidal mechanism of the essential oil of Asarum heterotropoides against Bactrocera dorsalis, aimed to find natural and effective botanical insecticides. [Method] The fumigation activity and touch.killing activity of the essential oil against Bactrocera dorsalis were determined by closed fumigation method and micro spot method, the effects of essential oil of Asarum heterotropoides on acetylcholinesterase (AchE) and carboxylesterase (CarE) activities in Bactrocera dorsalis were determined by microplate method. [Result] In the insecticidal activity experiment, with the increase of the concentration of the essential oil of Asarum heterotropoides, the insecticidal effect was gradually enhanced, and with the extension of time, the toxicity was also gradually enhanced. In the fumigation experiment, when the concentration was 1 mL/L and the treatment time was 12 h, the corrected mortality rate reached the maximum of 100%. In the touch.killing experiment, when the concentration was 156.25 μL/L and the treatment time was 12 h, the corrected mortality rate reached the maximum of 100%. The LC50 of Bactrocera dorsalis treated with fumigation and touch.killing for 12 h were 0.243 mL/L and 30.884 μL/L. After treating Bactrocera dorsalis with a fixed concentration of essential oil (156.25 μL/L) for different time, AchE and CarE in Bactrocera dorsalis were inhibited as a whole. After treating Bactrocera dorsalis with different concentrations of essential oil for 8 h, the AchE in worm showed induction effect at low concentration and inhibition effect at high concentration. The inhibitory effect of essential oil of Asarum heterotropoides on AchE in Bactrocera dorsalis increased with the increase of concentration.[Conclusion] The essential oil of Asarum heterotropoides has good fumigation and touch.killing activities against Bactrocera dorsalis, and has stronger touch.killing activity. The essential oil of Asarum heterotropoides has inhibitory effects on AchE and CarE in Bactrocera dorsalis. This study can provide theoretical basis for the research and development of natural botanical insecticides. [ABSTRACT FROM AUTHOR]

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

Objective: To investigate the relationship between serum fractalkine (FKN), activated protein C (APC) and the pathogenetic condition and poor prognosis in elderly patients with community-acquired pneumonia (CAP). Methods: 314 elderly CAP patients who were admitted to Weifang People's Hospital from January 2020 to January 2023 were selected as CAP group, patients were divided into low risk group (104 cases), medium risk group (123 cases) and high risk group (87 cases) according to the severity of the disease, patients were divided into death group (65 cases) and survival group (249 cases) according to the 30 days survival status after admission, another 100 healthy elderly people who underwent physical examination during the same period were selected as control group. Serum FKN and APC levels were detected by enzyme-linked immunosorbent assay. The predictive value of serum FKN and APC levels of poor prognosis in elderly CAP patients were analyzed by receiver operating characteristic (ROC) curve. The influencing factors of poor prognosis in elderly CAP patients were analyzed by multivariate logistic regression. Results: Compared with control group, serum FKN level increased in CAP group, and APC level decreased (P<0.05). Serum FKN levels of elderly CAP patients in low risk group, medium risk group and high risk group increased in turn, and APC levels decreased in turn (P<0.05). Multivariate Logistic regression analysis showed that, high risk of illness, mechanical ventilation and increased C-reactive protein (CRP) and FKN were independent risk factors of poor prognosis in elderly CAP patients, and the increase of APC was an independent protective factor (P<0.05). ROC curve analysis showed that, the area under the curve of FKN, APC levels alone and combined to predict poor prognosis in elderly CAP patients was 0.783, 0.789 and 0.870 respectively, the predictive value of the combination of the two for the poor prognosis of elderly CAP patients is greater than that of each index alone. Conclusion: Elevated serum FKN levels and decreased APC levels are involved in the progression of elderly CAP patients, and Serum FKN combine with APC can better predict the poor prognosis of elderly CAP patients. [ABSTRACT FROM AUTHOR]

Copyright of Light Industry Machinery is the property of Light Industry 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.)

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Copyright of Journal of Hubei Open Vocational College is the property of Journal of Hubei Open Vocational College 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 Engineering Management & Technology Discussion 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.)

The purpose of this experiment was to study the effects of different additives on the in vitro fermentation characteristics of mixed silage of alfalfa and peanut vine, so as to provide theoretical basis for the application of additives in production practice. The treatment groups were control (CK) group, 1×106 CFU/g FW Lactobacil⁃ lus plantarum (Lp) group, 5 g/kg FW cellulase (Ce) group, 1×106 CFU/g FW Lactobacillus plantarum + 5 g/kg FW cellulase (Lp+Ce) group, 40 g/kg DM tannin (Ta) group, 1×106 CFU/g FW Lactobacillus plantarum + 40 g/kg DM tannin (Lp+Ta) group, 5 g/kg FW cellulase + 40 g/kg DM tannin (Ce+Ta) group, 5 g/kg FW cellulase + 40 g/kg DM tannin + 1×106 CFU/g FW Lactobacillus plantarum (Lp+Ce+Ta) group. Each treatment was repeated 4 times. After 45 days of storage at room temperature, in vitro fermentation experiments were carried out, with a total of 8 treatments. The results showed that additive treatment had no significant effect on pH (P>0.05). Compared with CK group, the content of NH3-N in treatment group decreased significantly (P<0.05). And the content of NH3-N in Ta group was significantly lower than that in Lp, Ce and Ce+Lp groups, but higher than that in Ce+Lp, Ce+Ta and Ce+Lp+Ta groups(P<0.05). The ratio of acetic acid to propionic acid in Ce, Ce+Lp, Ce+Ta and Ce+Lp+Ta groups was significantly lower than that in CK group(P<0.05). The butyric acid content of Ce+Ta and Ce+Lp+Ta was significantly lower than that of Ce and Ce+Lp, but higher than that of other treatments (P<0.05). Except for Ce+Ta, the TVFA of Ta group was significantly lower than that of other treatment groups (P<0.05). The gas production of Lp+Ta, Ce+Ta and Lp+Ce+Ta groups was significantly lower than that of other treatment groups (P<0.05). DMD in CK, Lp and Ce groups was significantly higher than that in Ta, Lp+Ta and Lp+Ce+Ta groups. CP in Ta, Lp+Ta, Ce+Ta and Lp+Ce+ Ta groups was significantly lower than that in CK, Lp, Ce and Lp+Ce groups (P<0.05). NDFD in Lp+Ta, Ce+Ta and Lp+Ce+Ta groups was significantly lower than that in Lp, Ce and Lp+Ce groups, while ADFD in CK, Lp, Ce and Ta groups was significantly higher than that in other groups (P<0.05). To sum up, different additive treatments could reduce the content of NH3-N in rumen fermentation, in which the addition of tannin could significantly reduce gas production and CPD, and the addition of cellulase or Lacto⁃ bacillus plantarum could significantly alleviate the inhibitory effect of tannin on TVFA. [ABSTRACT FROM AUTHOR]