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基于UPLC-Triple-TOF-MS技术初步分析雅安产道地中药材川牛膝中生物碱成分
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作者 王悦秋 王昌 +1 位作者 梁林辉 梁大伟 《山东化工》 CAS 2024年第3期155-157,160,共4页
采用乙醇提取、成盐、二氯甲烷萃取等方法初步富集川牛膝总生物碱,确定最优提取分离工艺;通过超高液相色谱串联三重四级杆飞行时间质谱法,采用Waters XSelect CSH-C_(18)色谱柱(2.1 mm×150 mm,1.7μm),梯度洗脱,流速为0.3 mL/min,... 采用乙醇提取、成盐、二氯甲烷萃取等方法初步富集川牛膝总生物碱,确定最优提取分离工艺;通过超高液相色谱串联三重四级杆飞行时间质谱法,采用Waters XSelect CSH-C_(18)色谱柱(2.1 mm×150 mm,1.7μm),梯度洗脱,流速为0.3 mL/min,测试波长254 nm,柱温为50℃,进样量为3μL,采用电喷雾离子源正离子模式,扫描范围为m/z 100~1500,并采用全扫描模式对样品数据进行收集,根据高分辨质谱结合二级质谱所得信息对川牛膝中生物碱类化学成分进行快速鉴定,通过对比分子离子峰和碎片离子的质荷比、Scifinder和Reaxy数据库及相关文献,推测出两种生物碱成分。研究建立的生物碱类化学成分提取与分析方法,为提高雅安产道地中药材川牛膝的质量控制水平及后续阐明药效物质基础提供了实验依据。 展开更多
关键词 川牛膝 生物碱 提取方法 超高液相色谱串联三重四级杆飞行时间质谱法 定性分析
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一类特殊的完备左对称代数的导子与triple导子
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作者 吴孟珂 吴明忠 《湖州师范学院学报》 2024年第2期1-7,共7页
利用导子和triple导子的定义,通过计算线性变换在一组基下的结果,得到与Abelian李代数相容的维数小于或等于4维的完备左对称代数的导子,以及triple导子的矩阵形式.
关键词 左对称代数 Abelian李代数 相容 导子 triple导子
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Triple points and phase transitions of D-dimensional dyonic Ad S black holes with quasitopological electromagnetism in Einstein–Gauss–Bonnet gravity
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作者 牟平辉 蒋青权 +1 位作者 何柯腱 李国平 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第6期272-287,共16页
By considering the negative cosmological constant Λ as a thermodynamic pressure, we study the thermodynamics and phase transitions of the D-dimensional dyonic Ad S black holes(BHs) with quasitopological electromagnet... By considering the negative cosmological constant Λ as a thermodynamic pressure, we study the thermodynamics and phase transitions of the D-dimensional dyonic Ad S black holes(BHs) with quasitopological electromagnetism in Einstein–Gauss–Bonnet(EGB) gravity. The results indicate that the small/large BH phase transition that is similar to the van der Waals(vdW) liquid/gas phase transition always exists for any spacetime dimensions. Interestingly, we then find that this BH system exhibits a more complex phase structure in 6-dimensional case that is missed in other dimensions.Specifically, it shows for D = 6 that we observed the small/intermediate/large BH phase transitions in a specific parameter region with the triple point naturally appeared. Moreover, when the magnetic charge turned off, we still observed the small/intermediate/large BH phase transitions and triple point only in 6-dimensional spacetime, which is consistent with the previous results. However, for the dyonic Ad S BHs with quasitopological electromagnetism in Einstein–Born–Infeld(EBI) gravity, the novel phase structure composed of two separate coexistence curves observed by Li et al. [Phys. Rev. D105 104048(2022)] disappeared in EGB gravity. This implies that this novel phase structure is closely related to gravity theories, and seems to have nothing to do with the effect of quasitopological electromagnetism. In addition, it is also true that the critical exponents calculated near the critical points possess identical values as mean field theory. Finally, we conclude that these findings shall provide some deep insights into the intriguing thermodynamic properties of the dyonic Ad S BHs with quasitopological electromagnetism in EGB gravity. 展开更多
关键词 AdS black hole phase transition triple point
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The Triple Helix of innovation as a double game involving domestic and foreign actors
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作者 Eustache Mêgnigbêto 《Journal of Data and Information Science》 CSCD 2024年第1期82-100,共19页
Purpose:The collaboration relationships between innovation actors at a geographic level may be considered as grouping two separate layers,the domestic and the foreign.At the level of each layer,the relationships and t... Purpose:The collaboration relationships between innovation actors at a geographic level may be considered as grouping two separate layers,the domestic and the foreign.At the level of each layer,the relationships and the actors involved constitute a Triple Helix game.The paper distinguished three levels of analysis:the global grouping together all actors,the domestic grouping together domestic actors,and the foreign related to only actors from partner countries.Design/methodology/approach:Bibliographic records data from the Web of Science for South Korea and West Africa breakdown per innovation actors and distinguishing domestic and international collaboration are analyzed with game theory.The core,the Shapley value,and the nucleolus are computed at the three levels to measure the synergy between actors.Findings:The synergy operates more in South Korea than in West Africa;the government is more present in West Africa than in South Korea;domestic actors create more synergy in South Korea,but foreign more in West Africa;South Korea can consume all the foreign synergy,which is not the case of West Africa.Research limitations:Research data are limited to publication records;techniques and methods used may be extended to other research outputs.Practical implications:West African governments should increase their investment in science,technology,and innovation to benefit more from the synergy their innovation actors contributed at the foreign level.However,the results of the current study may not be sufficient to prove that greater investment will yield benefits from foreign synergies.Originality/value:This paper uses game theory to assess innovation systems by computing the contribution of foreign actors to knowledge production at an area level.It proposes an indicator to this end. 展开更多
关键词 triple Helix Game theory Core Shapley value NUCLEOLUS South Korea West Africa
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Study of plasma parameters of coaxial plasma source using triple Langmuir probe and Faraday cup diagnostics
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作者 Sunil KANCHI Rohit SHUKLA Archana SHARMA 《Plasma Science and Technology》 SCIE EI CAS CSCD 2024年第4期94-100,共7页
Coaxial plasma guns are a type of plasma source that produces plasma which propagates radially and axially controlled by the shape of the ground electrode, which has attracted much interest in several applications. In... Coaxial plasma guns are a type of plasma source that produces plasma which propagates radially and axially controlled by the shape of the ground electrode, which has attracted much interest in several applications. In this work, a 120° opening angle of CPG nozzle is used as a plasma gun configuration that operates at the energy of 150 J. The ionization of polyethylene insulator between the electrodes of the gun produces a cloud of hydrogen and carbon plasma.The triple Langmuir probe and Faraday cup are used to measure plasma density and plasma temperature. These methods are used to measure the on-axis and off-axis plasma divergence of the coaxial plasma gun. The peak values of ion densities measured at a distance of 25 mm on-axis from the plasma gun are(1.6±0.5)×10^(19)m^(-3)and(2.8±0.6)×10^(19)m^(-3)for hydrogen and carbon plasma respectively and the peak temperature is 3.02±0.5 eV. The mean propagation velocity of plasma is calculated using the transit times of plasma at different distances from the plasma gun and is found to be 4.54±0.25 cm/μs and 1.81±0.18 cm/μs for hydrogen and carbon plasma respectively. The Debye radius is obtained from the measured experimental data that satisfies the thin sheath approximation. The shot-to-shot stability of plasma parameters facilitates the use of plasma guns in laboratory experiments. These types of plasma sources can be used in many applications like plasma opening switches, plasma devices, and as plasma sources. 展开更多
关键词 coaxial plasma source triple Langmuir probe Faraday cup plasma density plasma temperature
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Enhancing Relational Triple Extraction in Specific Domains:Semantic Enhancement and Synergy of Large Language Models and Small Pre-Trained Language Models
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作者 Jiakai Li Jianpeng Hu Geng Zhang 《Computers, Materials & Continua》 SCIE EI 2024年第5期2481-2503,共23页
In the process of constructing domain-specific knowledge graphs,the task of relational triple extraction plays a critical role in transforming unstructured text into structured information.Existing relational triple e... In the process of constructing domain-specific knowledge graphs,the task of relational triple extraction plays a critical role in transforming unstructured text into structured information.Existing relational triple extraction models facemultiple challenges when processing domain-specific data,including insufficient utilization of semantic interaction information between entities and relations,difficulties in handling challenging samples,and the scarcity of domain-specific datasets.To address these issues,our study introduces three innovative components:Relation semantic enhancement,data augmentation,and a voting strategy,all designed to significantly improve the model’s performance in tackling domain-specific relational triple extraction tasks.We first propose an innovative attention interaction module.This method significantly enhances the semantic interaction capabilities between entities and relations by integrating semantic information fromrelation labels.Second,we propose a voting strategy that effectively combines the strengths of large languagemodels(LLMs)and fine-tuned small pre-trained language models(SLMs)to reevaluate challenging samples,thereby improving the model’s adaptability in specific domains.Additionally,we explore the use of LLMs for data augmentation,aiming to generate domain-specific datasets to alleviate the scarcity of domain data.Experiments conducted on three domain-specific datasets demonstrate that our model outperforms existing comparative models in several aspects,with F1 scores exceeding the State of the Art models by 2%,1.6%,and 0.6%,respectively,validating the effectiveness and generalizability of our approach. 展开更多
关键词 Relational triple extraction semantic interaction large language models data augmentation specific domains
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A novel triple periodic minimal surface-like plate lattice and its data-driven optimization method for superior mechanical properties
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作者 Yanda WANG Yanping LIAN +2 位作者 Zhidong WANG Chunpeng WANG Daining FANG 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI CSCD 2024年第2期217-238,共22页
Lattice structures can be designed to achieve unique mechanical properties and have attracted increasing attention for applications in high-end industrial equipment,along with the advances in additive manufacturing(AM... Lattice structures can be designed to achieve unique mechanical properties and have attracted increasing attention for applications in high-end industrial equipment,along with the advances in additive manufacturing(AM)technologies.In this work,a novel design of plate lattice structures described by a parametric model is proposed to enrich the design space of plate lattice structures with high connectivity suitable for AM processes.The parametric model takes the basic unit of the triple periodic minimal surface(TPMS)lattice as a skeleton and adopts a set of generation parameters to determine the plate lattice structure with different topologies,which takes the advantages of both plate lattices for superior specific mechanical properties and TPMS lattices for high connectivity,and therefore is referred to as a TPMS-like plate lattice(TLPL).Furthermore,a data-driven shape optimization method is proposed to optimize the TLPL structure for maximum mechanical properties with or without the isotropic constraints.In this method,the genetic algorithm for the optimization is utilized for global search capability,and an artificial neural network(ANN)model for individual fitness estimation is integrated for high efficiency.A set of optimized TLPLs at different relative densities are experimentally validated by the selective laser melting(SLM)fabricated samples.It is confirmed that the optimized TLPLs could achieve elastic isotropy and have superior stiffness over other isotropic lattice structures. 展开更多
关键词 lattice structure triple periodic minimal surface(TPMS) plate lattice structural optimization machine learning
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基于UFLC-Triple TOF-MS/MS的活心丸全成分分析 被引量:4
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作者 郑苏楠 刘玉铃 +1 位作者 吴灏 王永刚 《中南药学》 CAS 2023年第4期924-932,共9页
目的应用超快速高效液相色谱串联三重四极杆飞行时间质谱(UFLC-Triple TOF-MS/MS)对中药活心丸的化学成分进行分析。方法以Waters HSS T3(2.1 mm×100 mm,1.8μm)为色谱柱,乙腈-0.1%甲酸为流动相,梯度洗脱,流速0.3 mL·min^(-1)... 目的应用超快速高效液相色谱串联三重四极杆飞行时间质谱(UFLC-Triple TOF-MS/MS)对中药活心丸的化学成分进行分析。方法以Waters HSS T3(2.1 mm×100 mm,1.8μm)为色谱柱,乙腈-0.1%甲酸为流动相,梯度洗脱,流速0.3 mL·min^(-1),采用配有ESI电喷雾源的高分辨三重四极杆飞行时间质谱,分别在正、负离子模式下进样检测。结果通过准确分子量及碎片离子分析、对照品比对、相关文献查阅,共确证和指认出96个化学成分,其中三萜类化合物25个、皂苷类化合物12个、胆汁酸类化合物11个、黄酮类化合物11个、生物碱类化合物10个、蟾毒内酯类化合物12个、有机酸类化合物7个、氨基酸类化合物4个、核苷类化合物1个、甾酮类化合物1个、其他类化合物2个,并解释了代表性成分的裂解规律。结论本研究阐明了活心丸的化学物质基础,为评价其质量及后续药理机制研究提供了科学依据。 展开更多
关键词 中成药 活心丸 化学成分 UFLC-triple TOF-MS/MS
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基于Triple-Collocation多源地表温度数据融合方法研究
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作者 周露 宋承运 +1 位作者 王艳丽 孙时雨 《无线电工程》 北大核心 2023年第11期2500-2506,共7页
为充分利用多源地表温度数据,提高区域尺度下地表温度精度,改善地表温度遥感产品的适用性。以淮河流域为研究区,Triple-Collocation(TC)方法为基础,采用最小二乘法,由中分辨率光谱成像仪(MODIS)地表温度与风云三号可见光红外扫描辐射计(... 为充分利用多源地表温度数据,提高区域尺度下地表温度精度,改善地表温度遥感产品的适用性。以淮河流域为研究区,Triple-Collocation(TC)方法为基础,采用最小二乘法,由中分辨率光谱成像仪(MODIS)地表温度与风云三号可见光红外扫描辐射计(FY-3C/VIRR)地表温度遥感产品,结合地面观测站实测数据,研究多源数据融合方法。将淮河流域39个气象站点分为融合站点与验证站点,由融合站点采用反距离插值(IDW)算法得到区域连续地表温度数据,与FY-3C/VIRR地表温度数据、MODIS地表温度数据,融合得到淮河流域地表温度。与地面验证站点对比分析表明,融合后的地表温度,其R^(2)、RMSE和MAE分别为0.98、1.10 K、0.88 K,优于MODIS地表温度的0.92、2.59 K、2.18 K和FY-3C地表温度产品的0.84、6.68 K、5.35 K,精度得到了显著的提高。淮河流域不同月份的温度变化季节性规律明显,且变化主要出现在中部及东部地区,最高温度变化值都达到了20 K以上。 展开更多
关键词 淮河流域 地表温度 数据融合 triple-Collocation
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基于UPLC-Triple-TOF/MS核桃油酚类物质的鉴定与区分
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作者 夏朝盛 侯荣荣 +3 位作者 陆元超 聂小华 余宁翔 孟祥河 《中国粮油学报》 CSCD 北大核心 2023年第7期161-166,共6页
针对机械压榨法(MP)、溶剂萃取法(SE)、水酶法(AEE)等制备的核桃油,本研究测定核桃油的总酚含量(TP)并分析鉴定其酚类化合物;通过酚类物质差异对3种萃取方法的核桃油进行分类、鉴定。研究发现,3种萃取方法制得核桃油TP具有显著差异;SE... 针对机械压榨法(MP)、溶剂萃取法(SE)、水酶法(AEE)等制备的核桃油,本研究测定核桃油的总酚含量(TP)并分析鉴定其酚类化合物;通过酚类物质差异对3种萃取方法的核桃油进行分类、鉴定。研究发现,3种萃取方法制得核桃油TP具有显著差异;SE核桃油TP最高(15.75 mg/kg),AEE核桃油TP次之(11.05 mg/kg),MP核桃油TP最低(9.20 mg/kg);基于HPLC和UPLC-Triple-TOF/MS分析,核桃油共鉴定出15种酚类化合物,且不同核桃油酚类物质类别、丰度与含量差异显著;其中,MP核桃油的酚类化合物种类最丰富。基于代表性酚类化合物的含量及酚类物质类别的相对含量开展主成分分析,能成功区分不同萃取方法的核桃油。 展开更多
关键词 核桃油 酚类化合物 高效液相色谱(HPLC) 超高效液相色谱-三重四级杆飞行时间/质谱联用仪(UPLC-triple-TOF/MS) 主成分分析
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Fuzzy Henstock-Kurzweil Triple Integral
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作者 Kumwimba Seya Didier Kasongo Ntambwe Dany +1 位作者 Mayuke Katshongo Jean-Paul Lunda Ngoie Jean-Pierre 《Journal of Applied Mathematics and Physics》 2023年第7期1860-1870,共11页
In this article, we use the Hausdorf distance to treat triple Simpson’s rule of the Henstock triple integral of a fuzzy valued function as well as the error bound of the method. We also introduce δ-fine subdivisions... In this article, we use the Hausdorf distance to treat triple Simpson’s rule of the Henstock triple integral of a fuzzy valued function as well as the error bound of the method. We also introduce δ-fine subdivisions for a Henstock triple integral and numerical example is presented in order to show the application and the consequence of the method. 展开更多
关键词 Fuzzy-Valued Function Hausdorff Distance triple Fuzzy Integral triple Simpson’s Rule δ-Fine Henstock Integral
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About Upper and Lower Strong Fractional Weighted Mean Convergence by Moduli for Triple Sequences
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作者 Amelia Bucur 《Journal of Applied Mathematics and Physics》 2023年第5期1304-1318,共15页
In article, I present a study on upper and lower statistical convergence, and upper and lower strong fractional weighted mean convergence by moduli for triple sequences. One of the generalizations of the discrete oper... In article, I present a study on upper and lower statistical convergence, and upper and lower strong fractional weighted mean convergence by moduli for triple sequences. One of the generalizations of the discrete operator Cesàro, was weighted mean operators, which are linear operators, too. Given a modulus function f, I established that a triple sequence that is f-upper or lower strong fractional weighted mean convergent, in some supplementary conditions, is also f-lower or upper statistically convergent. The results of this paper adapt the results obtained in [1] and [2] to upper and lower strong fractional weighted mean convergence and to triple sequence concept. Furthermore, new concepts can be applied to the approximation theory, topology, Fourier analysis, analysis interdisciplinary with applications electrical engineering, robotics and other domains. 展开更多
关键词 Upper and Lower Statistical Convergence triple Sequences Unbounded Modulus Function Numerical Analysis
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A novel triple responsive smart fluid for tight oil fracturing-oil expulsion integration
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作者 Ming-Wei Gao Ming-Shan Zhang +5 位作者 Heng-Yi Du Ming-Wei Zhao Cai-Li Dai Qing You Shun Liu Zhe-Hui Jin 《Petroleum Science》 SCIE EI CAS CSCD 2023年第2期982-992,共11页
The traditional multi-process to enhance tight oil recovery based on fracturing and huff-n-puff has obvious deficiencies,such as low recovery efficiency,rapid production decline,high cost,and complexity,etc.Therefore,... The traditional multi-process to enhance tight oil recovery based on fracturing and huff-n-puff has obvious deficiencies,such as low recovery efficiency,rapid production decline,high cost,and complexity,etc.Therefore,a new technology,the so-called fracturing-oil expulsion integration,which does not need flowback after fracturing while making full use of the fracturing energy and gel breaking fluids,are needed to enable efficient exploitation of tight oil.A novel triple-responsive smart fluid based on“pseudo-Gemini”zwitterionic viscoelastic surfactant(VES)consisting of N-erucylamidopropyl-N,N-dimethyl-3-ammonio-2-hydroxy-1-propane-sulfonate(EHSB),N,N,N′,N′-tetramethyl-1,3-propanediamine(TMEDA)and sodium p-toluenesulfonate(NaPts),is developed.Then,the rheology of smart fluid is systematically studied at varying conditions(CO_(2),temperature and pressure).Moreover,the mechanism of triple-response is discussed in detail.Finally,a series of fracturing and spontaneous imbibition performances are systematically investigated.The smart fluid shows excellent CO_(2)-,thermal-,and pressure-triple responsive behavior.It can meet the technical requirement of tight oil fracturing construction at 140°C in the presence of 3.5 MPa CO_(2).The gel breaking fluid shows excellent spontaneous imbibition oil expulsion(∼40%),salt resistance(1.2×104 mg/L Na+),temperature resistance(140°C)and aging stability(30 days). 展开更多
关键词 Fracturing-oil expulsion integration Tight oil triple responsive smart fluid "Pseudo-gemini"zwitterionic surfactant Fracturing fluid Spontaneous imbibition
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Analysis of Differential Gene Expression and Core Canonical Pathways Involved in the Epithelial to Mesenchymal Transition of Triple Negative Breast Cancer Cells by Ingenuity Pathway Analysis
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作者 Elizabeth Cagle Brent Lake +10 位作者 Anasua Banerjee Jazmine Cuffee Narendra Banerjee Darla Gilmartin Makaiyah Liverman Shennel Brown Erik Armstrong Santanu Bhattacharya Somiranjan Ghosh Tanmoy Mandal Hirendra Banerjee 《Computational Molecular Bioscience》 2023年第2期21-34,共14页
Triple Negative Breast Cancer (TNBC) is a malignant form of cancer with very high mortality and morbidity. Epithelial to Mesenchymal Transition (EMT) is the most common pathophysiological change observed in cancer cel... Triple Negative Breast Cancer (TNBC) is a malignant form of cancer with very high mortality and morbidity. Epithelial to Mesenchymal Transition (EMT) is the most common pathophysiological change observed in cancer cells of epithelial origin that promotes metastasis, drug resistance and cancer stem cell formation. Since the information regarding differential gene expression in TNBC cells and cell signaling events leading to EMT is limited, this investigation was done by comparing transcriptomic data generated by RNA isolation and sequencing of a EMT model TNBC cell line in comparison to regular TNBC cells. RNA sequencing and Ingenuity Pathway Software Analysis (IPA) of the transcriptomic data revealed several upregulated and downregulated gene expressions along with novel core canonical pathways including Sirtuin signaling, Oxidative Phosphorylation and Mitochondrial dysfunction events involved in EMT changes of the TNBC cells. 展开更多
关键词 triple Negative Breast Cancer Epithelial to Mesenchymal Transition Core Canonical Pathways
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Adjusting amplitude of the stored optical solitons by inter-dot tunneling coupling in triple quantum dot molecules
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作者 王胤 周驷杰 +1 位作者 邓永和 陈桥 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第5期433-441,共9页
We study the propagation properties of a probe field in an aligned asymmetric triple quantum dot molecule with both sides inter-dot tunneling coupling effect. It is shown that the probe field can form optical soliton ... We study the propagation properties of a probe field in an aligned asymmetric triple quantum dot molecule with both sides inter-dot tunneling coupling effect. It is shown that the probe field can form optical soliton due to the destructive quantum interference induced by the quantum inter-dot tunneling coupling effect. Interestingly, these optical solitons can be stored and retrieved by adjusting single or double inter-dot tunneling coupling effect, different from that light memory in the ultra-cold atom system. Furthermore, we also find that the amplitude of the stored optical soliton can be adjusted by the strength of the single or double inter-dot tunneling coupling. It is possible to improve the stability and the fidelity of the optical information in the process of the storage and retrieval in semiconductor quantum dots devices. 展开更多
关键词 tunneling induced transparency triple quantum dot molecules the storage and retrieval of the optical solitons
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绿色认知、组织支持对粮农绿色生产技术采纳影响--基于Triple-Hurdle模型的分析
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作者 张泽琳 周霞 《科技与经济》 2023年第5期46-50,共5页
基于粮食主产区山东省319户粮农的微观数据,将粮农的绿色生产技术采纳划分为绿色生产技术采纳意愿、采纳行为、采纳程度3个方面,运用Triple-Hurdle模型进行分析研究。结果表明:绿色认知、组织支持对粮农绿色生产技术的采纳意愿、采纳行... 基于粮食主产区山东省319户粮农的微观数据,将粮农的绿色生产技术采纳划分为绿色生产技术采纳意愿、采纳行为、采纳程度3个方面,运用Triple-Hurdle模型进行分析研究。结果表明:绿色认知、组织支持对粮农绿色生产技术的采纳意愿、采纳行为和采纳程度具有显著正向影响;组织支持能正向调节绿色认知对粮农绿色生产采纳的影响,但在不同阶段调节效应有差异;绿色认知对粮农的绿色生产技术采纳具有组群差异,绿色认知对于大规模粮农和年轻粮农的绿色生产技术采纳影响更大。 展开更多
关键词 绿色认知 组织支持 粮食种植户 绿色生产技术 triple-Hurdle模型
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三角代数上的双Lie triple导子
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作者 梁新峰 郭浩楠 《廊坊师范学院学报(自然科学版)》 2023年第4期9-16,共8页
借助双模结构证明了三角代数上的每一个双Lie triple导子δ都可以分解为inner双导子、extremal双导子以及中心映射之和。作为应用,在上三角矩阵代数和套代数的双Lie triple导子上得到了同样结论。
关键词 三角代数 双Lie triple导子 上三角矩阵代数 套代数
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“愤怒”猛兽 2023 Triumph Street Triple R
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作者 方云飞 《摩托车》 2023年第12期50-55,共6页
众所周知,Moto2比赛从2019年起,凯旋的并列三缸替代了本田的600mL并列四缸,成为竞逐桂冠的动力心脏。这台排量765mL的三缸机器,能够爆发超过100kW的峰值动力,驱动重量只有150kg的轻盈战车飞奔疾驰,车速可以超过300km/h!
关键词 km/h triple MOTO
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Study of the Effect of Zhuang Medicine Aponeurotic System Triple Therapy on Lumbar Disc Herniation and Alpha-1 Acid Glycoprotein Level
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作者 Yun Zhang Yuying Lan Yingcai Wei 《Journal of Clinical and Nursing Research》 2023年第2期92-99,共8页
Objective:To analyze the application effect of Zhuang medicine aponeurotic system triple therapy in the treatment of lumbar disc herniation and its effect on the level of alpha-1 acid glycoprotein(alpha-1 AGP).Methods... Objective:To analyze the application effect of Zhuang medicine aponeurotic system triple therapy in the treatment of lumbar disc herniation and its effect on the level of alpha-1 acid glycoprotein(alpha-1 AGP).Methods:200 patients with lumbar disc herniation were selected and randomly divided into a treatment group and a control group,100 cases in each group.The control group was given conventional acupuncture,and the treatment group was treated with manipulation+fire needling+cupping.The alpha-1-AGP levels before and after treatment,as well as the lumbar spine function and pain scores before and after treatment,and the adverse reactions occurred during treatment between the two groups were compared.Results:Before treatment,there was no significant difference in alpha-1 AGP levels,lumbar function,and pain scores between the two groups(P>0.05).After treatment,the lumbar function scores of the two groups were significantly increased,with the treatment group having higher scores than the control group(P<0.05);the incidence of adverse reactions in the treatment group was 2.00%,which was much lower than the control group(P>0.05).Conclusion:Appropriate application of Zhuang medicine aponeurotic system triple therapy in the clinical treatment of lumbar disc herniation can promote the improvement of alpha-1 AGP index level,reduce the pain degree of patients,and improve their lumbar spine function.At the same time,Zhuang medicine also has significant advantages in terms of safety,while ensuring the efficacy and safety of the treatment. 展开更多
关键词 Zhuang medicine aponeurotic system triple therapy Lumbar disc herniation Application effect Alpha-1 acid glycoprotein
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基于Triple Collocation方法的土壤湿度误差分析 被引量:6
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作者 吴凯 舒红 +1 位作者 聂磊 焦振航 《国土资源遥感》 CSCD 北大核心 2018年第3期68-75,共8页
土壤湿度作为水循环中重要的驱动参数之一,对天气变化有着显著影响。遥感技术的发展促使土壤湿度的大范围动态性观测变为可能,但对其误差的准确估计仍需进一步的研究。利用ASCAT散射计、AMSR-E辐射计反演得到的2种卫星遥感土壤湿度数据... 土壤湿度作为水循环中重要的驱动参数之一,对天气变化有着显著影响。遥感技术的发展促使土壤湿度的大范围动态性观测变为可能,但对其误差的准确估计仍需进一步的研究。利用ASCAT散射计、AMSR-E辐射计反演得到的2种卫星遥感土壤湿度数据以及ERA-Interim土壤湿度再分析资料,通过三重组合(Triple Collocation,TC)方法得到了研究区域(15°N^55°N,73°E^135°E) 3种土壤湿度数据的误差方差和信噪比估计,并结合MODIS土地覆盖类型数据分析了3种土壤湿度数据的误差特征。结果表明:植被覆盖会影响遥感土壤湿度的TC误差方差估计;从TC误差方差估计值来看,ERA土壤湿度精度最高,AMSR-E精度次之,ASCAT精度最低;从信噪比来看,ASCAT土壤湿度信噪比最高,ERA的信噪比低于ASCAT高于AMSR-E,AMSR-E信噪比最低;通过研究区MODIS土地覆盖类型数据与TC结果的分析可知TC结果多分布在草原、农田和裸地,TC结果比较符合客观实际情况。 展开更多
关键词 土壤湿度 误差估计 triple COLLOCATION
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