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基于C#的Aether大地电磁系统原始数据文件读写及应用
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作者 贺景龙 寇少磊 +2 位作者 刘诚 李含 杨凯 《物探与化探》 2025年第5期1201-1211,共11页
本文在研究MTU系列仪器数据文件的基础上,通过研究Aether大地电磁测量系统的数据文件,基于C#语言编写程序,对原始时间序列A24文件、磁探头校准apial文件、标准时间序列atts文件进行解码,完成了时间序列的拼接、读写、显示等模块的开发,... 本文在研究MTU系列仪器数据文件的基础上,通过研究Aether大地电磁测量系统的数据文件,基于C#语言编写程序,对原始时间序列A24文件、磁探头校准apial文件、标准时间序列atts文件进行解码,完成了时间序列的拼接、读写、显示等模块的开发,探头文件的读写、显示模块以及傅立叶变换、傅立叶系数显示等模块的开发。最后通过与prMT处理软件相关模块进行对比检验了程序的可应用性,利用野外实际采集数据测试了程序的可操作性,为下一步功率谱估计、干扰信号处理等更加深入的研究提供了一定的基础与依据。 展开更多
关键词 大地电磁 aether 数据格式 C#
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Aether大地电磁仪在天山造山带地球物理调查中的应用
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作者 王洪鑫 郭天鹏 +1 位作者 李娜 汪敏骅 《中文科技期刊数据库(全文版)自然科学》 2025年第6期087-091,共5页
Aether大地电磁仪以其宽频带覆盖、高灵敏度和强抗干扰能力,能够在复杂地形条件下采集高分辨率的数据,从而在区域基础地球物理调查中展现了优越的性能。本文探讨了该仪器在大地电磁测深调查中的应用,以天山造山带地区的应用为依托,从工... Aether大地电磁仪以其宽频带覆盖、高灵敏度和强抗干扰能力,能够在复杂地形条件下采集高分辨率的数据,从而在区域基础地球物理调查中展现了优越的性能。本文探讨了该仪器在大地电磁测深调查中的应用,以天山造山带地区的应用为依托,从工作原理、技术应用、试验验证和适应性分析等方面展开论述。通过试验验证,Aether大地电磁仪采集频率范围覆盖0.001Hz至10,000Hz,可同时满足浅层和深层结构探测需求。在高阻环境下,仪器依然能够提供高质量的数据,展现了其在复杂地质条件下的适应性,充分体现了Aether大地电磁仪在地球物理调查中的技术优势,对能源资源勘查和地质构造研究提供了可靠的技术支撑。 展开更多
关键词 aether大地电磁仪 大地电磁测深 地球物理调查 复杂地质环境
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基于Aether的不同负载的共源放大电路的仿真分析
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作者 杨丹萍 吴泽炎 +1 位作者 何宁业 铁瑞芳 《电子制作》 2025年第11期94-97,共4页
共源放大电路作为模拟电路中的基本放大电路,采用不同的负载所呈现的放大能力也不一样,通过小信号模型进行理论分析,不便于学生理解。通过具体仿真实例,利用Aether仿真软件对不同负载的共源放大电路进行仿真,得到相应的增益曲线,将仿真... 共源放大电路作为模拟电路中的基本放大电路,采用不同的负载所呈现的放大能力也不一样,通过小信号模型进行理论分析,不便于学生理解。通过具体仿真实例,利用Aether仿真软件对不同负载的共源放大电路进行仿真,得到相应的增益曲线,将仿真结果与理论分析结果对比,能够让学生更直观的感受出不同负载的共源放大电路的特点。灵活运用Aether软件进行仿真分析,能够使小信号的放大过程具象化,提升学习效果。 展开更多
关键词 aether 共源放大电路 仿真 模拟集成电路设计
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From Dirac’s Aether to the Dirac Equation
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作者 Richard D. Bateson 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2024年第4期1450-1466,共17页
In 1951, Dirac proposed a formalism for a Lorentz invariant Aether with a vacuum state that contains all possible velocity states at each space-time point. Dirac showed no explicit path from the Aether towards the Qua... In 1951, Dirac proposed a formalism for a Lorentz invariant Aether with a vacuum state that contains all possible velocity states at each space-time point. Dirac showed no explicit path from the Aether towards the Quantum Mechanics. In this paper, we demonstrate that Dirac’s proposed Aether can be described by a lattice of possible events in space-time built in the local Lorentz frame. The idealised case of single velocity state leads to the famous Dirac equation for a plane wave state and is compatible with quantum statistics. On the lattice, possible space-time events are connected by the Dirac spinors which provide the probability of observing an event. The inertial mass of a particle is shown to be equivalent to the density of possible events on the lattice. Variation of the lattice density of events modifies the metric and provides a space-time curvature leading to the Hilbert action associated with general relativity. In classical limit, the perturbation in the density of possible events of the Aether is proportional to the Newtonian gravitational potential. 展开更多
关键词 Dirac aether Lorentz Invariance Dirac Equation Quantum Mechanics Space-Time Lattice Dirac Spinors Inertial Mass Metric Modification Space-Time Curvature General Relativity
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Non-Uniform Pion Tetrahedron Aether and Electron Tetrahedron Model
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作者 Rami Rom 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2024年第2期810-824,共15页
We propose that the QCD vacuum pion tetrahedron condensate density vary in space and drops to extremely low values in the Kennan, Barger and Cowie (KBC) void in analogy to earth’s atmospheric density drop with elevat... We propose that the QCD vacuum pion tetrahedron condensate density vary in space and drops to extremely low values in the Kennan, Barger and Cowie (KBC) void in analogy to earth’s atmospheric density drop with elevation from earth. We propose a formula for the gravitation acceleration based on the non-uniform pion tetrahedron condensate. Gravity may be due to the underlying microscopic attraction between quarks and antiquarks, which are part of the vacuum pion tetrahedron condensate. We propose an electron tetrahedron model, where electrons are comprised of tetraquark tetrahedrons, and . The quarks determine the negative electron charge and the or quarks determine the electron two spin states. The electron tetrahedron may perform a high frequency quark exchange reactions with the pion tetrahedron condensate by tunneling through the condensation gap creating a delocalized electron cloud with a fixed spin. The pion tetrahedron may act as a QCD glue bonding electron pairs in atoms and molecules and protons to neutrons in the nuclei. Conservation of valence quarks and antiquarks is proposed. 展开更多
关键词 Standard Model (SM) QCD Vacuum Condensate Electric Dipole Moment (EDM) KBC Void ANTIMATTER MOND Theory aether
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Einstein-Aether引力理论中的后后牛顿光子方程(英文) 被引量:1
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作者 宫衍香 吴晓梅 曹会国 《西南大学学报(自然科学版)》 CAS CSCD 北大核心 2011年第3期27-32,共6页
采用后牛顿近似方法讨论了Einstein-aether引力理论中光子的后后牛顿轨道方程.导出了光子方程中的后后牛顿修正项,当后牛顿参数c14=0和度规张量gij中的各项异性部分被忽略时,这套方程回到先前文献中出现的后后牛顿光线方程.比较本理论... 采用后牛顿近似方法讨论了Einstein-aether引力理论中光子的后后牛顿轨道方程.导出了光子方程中的后后牛顿修正项,当后牛顿参数c14=0和度规张量gij中的各项异性部分被忽略时,这套方程回到先前文献中出现的后后牛顿光线方程.比较本理论结论和当今空间引力实验中的实验结论,Einstein-aether理论的后后牛顿近似可以得到验证. 展开更多
关键词 Einstein-aether理论 后牛顿近似 空间引力实验 光子方程
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Aether在“半导体物理与器件”教学中的应用 被引量:2
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作者 韦一 唐莹 《重庆电子工程职业学院学报》 2016年第2期143-144,共2页
为进一步提高"半导体物理与器件"的教学质量,该文探讨了引入Aether软件改进课程的教学方法和教学手段。通过Aether软件仿真得到半导体器件的特性曲线,有利于学生深入理解器件的工作原理、应用特点和参数影响等内容,在教学中... 为进一步提高"半导体物理与器件"的教学质量,该文探讨了引入Aether软件改进课程的教学方法和教学手段。通过Aether软件仿真得到半导体器件的特性曲线,有利于学生深入理解器件的工作原理、应用特点和参数影响等内容,在教学中取得了良好的效果。 展开更多
关键词 教学改革 半导体物理与器件 aether软件
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应用微信平台引导学习Aether软件
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作者 唐莹 韦一 《电子世界》 2015年第23期72-72,81,共2页
"大学生集成电路设计大赛"不仅给学生提供了展示自我的平台,也为教师的日常教学提供了帮助。本文探讨将大赛推荐的IC设计软件Aether引入微电子专业课程中,并借助微信平台对学生进行课内和课外的双重引导。通过应用微信平台积... "大学生集成电路设计大赛"不仅给学生提供了展示自我的平台,也为教师的日常教学提供了帮助。本文探讨将大赛推荐的IC设计软件Aether引入微电子专业课程中,并借助微信平台对学生进行课内和课外的双重引导。通过应用微信平台积极推广大学生集成电路设计大赛和Aether软件,实践证明取得了良好的效果。 展开更多
关键词 微信 教学改革 aether
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Law of Physics 20<sup>th</sup>-Century Scientists Overlooked (Part 4): Mass Extinction by Aether Deprivation
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作者 Conrad Ranzan 《Journal of High Energy Physics, Gravitation and Cosmology》 2021年第1期191-209,共19页
Extreme gravitational collapse is explored by utilizing two fundamental properties and one reasonable assumption, which together lead logically to an end-state gravitating structure. This structure, called a Terminal ... Extreme gravitational collapse is explored by utilizing two fundamental properties and one reasonable assumption, which together lead logically to an end-state gravitating structure. This structure, called a Terminal state neutron star, manifests nature’s ultimate density of mass and possesses the ultimate electromagnetic barrier. It is then shown how this structure is central to the remarkable mechanism whereby the density is prevented from going higher. A simple process assures that such density is not exceeded—regardless of the quantity of additional mass. As an example, the discourse focuses on the expected progression and outcome when a compact star of <img src="Edit_2c290d68-3330-4724-9e68-e7f1c9d3df1a.png" width="25" height="15" alt="" />—far more mass than can be accommodated by the basic Terminal state structure—undergoes total gravitational collapse. An examination of what happens to the considerable excess mass leads the discussion to the <i>principle of mass extinction by the process of aether deprivation</i> and its profound implications for black-hole physics and the current revolution in cosmology. 展开更多
关键词 Mass Extinction aether Deprivation Process Gravitational Collapse Black Hole Physics aether Energy Layer Ultimate Density End-State Neutron Star Terminal star DSSU Theory
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A Modified Gravity Theory: Null Aether
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作者 Metin Gürses ?etin ?entürk 《Communications in Theoretical Physics》 SCIE CAS CSCD 2019年第3期312-326,共15页
General quantum gravity arguments predict that Lorentz symmetry might not hold exactly in nature. This has motivated much interest in Lorentz breaking gravity theories recently. Among such models are vector-tensor the... General quantum gravity arguments predict that Lorentz symmetry might not hold exactly in nature. This has motivated much interest in Lorentz breaking gravity theories recently. Among such models are vector-tensor theories with preferred direction established at every point of spacetime by a fixed-norm vector field. The dynamical vector field defined in this way is referred to as the "aether". In this paper, we put forward the idea of a null aether field and introduce, for the first time, the Null Aether Theory(NAT) — a vector-tensor theory. We first study the Newtonian limit of this theory and then construct exact spherically symmetric black hole solutions in the theory in four dimensions, which contain Vaidya-type non-static solutions and static Schwarzschild-(A)dS type solutions, Reissner-Nordstr?m-(A)dS type solutions and solutions of conformal gravity as special cases. Afterwards, we study the cosmological solutions in NAT:We find some exact solutions with perfect fluid distribution for spatially flat FLRW metric and null aether propagating along the x direction. We observe that there are solutions in which the universe has big-bang singularity and null field diminishes asymptotically. We also study exact gravitational wave solutions — AdS-plane waves and pp-waves — in this theory in any dimension D ≥ 3. Assuming the Kerr-Schild-Kundt class of metrics for such solutions, we show that the full field equations of the theory are reduced to two, in general coupled, differential equations when the background metric assumes the maximally symmetric form. The main conclusion of these computations is that the spin-0 aether field acquires a "mass" determined by the cosmological constant of the background spacetime and the Lagrange multiplier given in the theory. 展开更多
关键词 aether theory NEWTONIAN limit black holes COSMOLOGICAL solutions Kerr-Schild-Kundt class of metrics Ads-plane waves PP-WAVES
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Effect of null aether field on weak deflection angle of black holes
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作者 A.Övgün İ.Sakallı J.Saavedra 《Chinese Physics C》 SCIE CAS CSCD 2020年第12期234-239,共6页
We study light rays in the static and spherically symmetric gravitational field of the null aether theory(NAT).To this end,we employ the Gauss-Bonnet theorem to compute the deflection angle formed by a NAT black hole ... We study light rays in the static and spherically symmetric gravitational field of the null aether theory(NAT).To this end,we employ the Gauss-Bonnet theorem to compute the deflection angle formed by a NAT black hole in the weak limit approximation.Using the optical metrics of the NAT black hole,we first obtain the Gaussian curvature and then calculate the leading terms of the deflection angle.Our calculations indicate how gravitational lensing is affected by the NAT field.We also illustrate that the bending of light stems from global and topological effects. 展开更多
关键词 deflection of light Gauss-Bonnet theorem gravitational lensing black hole null aether theory
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“模拟集成电路设计”案例教学研究与实践——基于国产EDA工具 被引量:2
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作者 曹超 王永 郭海君 《教育教学论坛》 2024年第33期63-66,共4页
随着我国集成电路产业的发展,急需大量集成电路设计类人才,如何解决这一紧迫的需求,更好地实现产教融合,培养优秀的、能够适应产业需求、解决复杂工程问题的设计类人才,是高校“模拟集成电路设计”课程本科教学中亟待解决的核心问题。... 随着我国集成电路产业的发展,急需大量集成电路设计类人才,如何解决这一紧迫的需求,更好地实现产教融合,培养优秀的、能够适应产业需求、解决复杂工程问题的设计类人才,是高校“模拟集成电路设计”课程本科教学中亟待解决的核心问题。依托所在学院开设的案例教学类课程,通过项目式学习和课赛结合的方式,形成了基于国产EDA工具的模拟集成电路设计案例教学方法,开展并完成了多个学期的教学改革和实践。教学数据表明,案例教学方法可显著提高学生的获得感和满意度。但对于不同水平的学生,效果存在一定的差异。基于此,提出了进一步改进案例教学的三点建议。 展开更多
关键词 案例教学 模拟集成电路设计 EDA Empyrean aether
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浅谈低碳水泥国内外研究进展 被引量:2
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作者 商雁青 李敏 +3 位作者 张萌 陈旭 聂松 陈智丰 《中国水泥》 CAS 2024年第7期21-28,共8页
水泥工业是我国碳排放量的主要来源,其二氧化碳排放量占人类活动排放量的5%-10%,因此降低水泥工业二氧化碳排放是碳减排重点之一。降低能耗、减少废气排放、提高性能、创新CCUS技术是水泥工业发展的方向。本文主要介绍了低碳水泥国内外... 水泥工业是我国碳排放量的主要来源,其二氧化碳排放量占人类活动排放量的5%-10%,因此降低水泥工业二氧化碳排放是碳减排重点之一。降低能耗、减少废气排放、提高性能、创新CCUS技术是水泥工业发展的方向。本文主要介绍了低碳水泥国内外研究进展,其重点对Aether低碳水泥和一种新型的快凝快硬高贝利特硫铝酸盐低碳水泥的特点进行研究。 展开更多
关键词 低碳水泥 aether水泥 新型快凝快硬高贝利特硫铝酸盐水泥
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基于集成电路版图技术的芯片ESD保护结构设计 被引量:2
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作者 姚欢 《电脑知识与技术》 2024年第33期106-110,共5页
随着集成电路技术的不断发展,芯片的性能和集成度不断提升,但同时也面临着日益严峻的静电放电(ESD)挑战。ESD事件可能导致芯片损坏或失效,对电子产品的可靠性和稳定性构成严重威胁。因此,设计一种有效的芯片ESD保护结构显得尤为重要。... 随着集成电路技术的不断发展,芯片的性能和集成度不断提升,但同时也面临着日益严峻的静电放电(ESD)挑战。ESD事件可能导致芯片损坏或失效,对电子产品的可靠性和稳定性构成严重威胁。因此,设计一种有效的芯片ESD保护结构显得尤为重要。文章提出了一种基于集成电路版图技术的芯片ESD保护全电路结构,并使用Aether设计软件进行仿真验证。该结构与芯片内部电路充分隔离,能够有效防止ESD事件对内部电路产生干扰或损害,同时能够有效识别和响应ESD事件。通过提供低阻抗的电流泄放路径,该结构能够迅速将静电电荷导入地,以防止其对芯片内部电路造成损害,并具备足够的电流处理能力,具有实际应用价值。 展开更多
关键词 ESD静电放电 芯片保护 集成电路 版图设计 aether设计软件
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基于0.18μm工艺的压控增益仪表放大器设计
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作者 王宝晶 宋光坤 赵爱清 《集成电路应用》 2024年第7期25-29,共5页
阐述一款基于0.18μm CMOS工艺的压控增益仪表放大器设计。该仪表放大器可通过电压控制实现三个增益档位的调节,通过优化仪表放大器内部的运放结构,使得仪表放大器在0.18μm CMOS工艺下具有高性能指标,并可实现增益较大范围的调节。利用... 阐述一款基于0.18μm CMOS工艺的压控增益仪表放大器设计。该仪表放大器可通过电压控制实现三个增益档位的调节,通过优化仪表放大器内部的运放结构,使得仪表放大器在0.18μm CMOS工艺下具有高性能指标,并可实现增益较大范围的调节。利用Aether IC设计平台进行底层电路搭建及仿真验证,仿真表明,所设计的仪表放大器具有高电源抑制比、高输入阻抗、高共模抑制比、低功耗、低失调的特点,且具有较高的稳定性,为0.18μm CMOS工艺的压控增益仪表放大器的设计提供了理论依据。 展开更多
关键词 0.18μm工艺 仪表放大器 压控增益 aether Aeolus仿真
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The Electrodynamics of Moving Material Fields and the Two Speeds Implied by the Expanding Earth
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作者 Giancarlo Scalera 《Journal of Electromagnetic Analysis and Applications》 2024年第8期115-139,共25页
This work identifies the branch point, which was never explicit in EM treatises, from which came the choice of abandoning the Galilean transformations in favor of the Lorentz covariance, a path that originated the var... This work identifies the branch point, which was never explicit in EM treatises, from which came the choice of abandoning the Galilean transformations in favor of the Lorentz covariance, a path that originated the various relativistic theories. The need arising from the expanding Earth for a hydrodynamic mechanism for Newtonian and Coulomb fields is discussed. This hydrodynamic material mechanism is shown to constitute a completion of the Newton and Maxwell concepts of the fields, which were only a phenomenological description of physical reality. It is shown that the analogy between Maxwell’s equations and hydrodynamics cannot become a perfect correspondence. The lack of coupling of the electromagnetic field to the underlying material “causing field”—which induces hydrodynamical forces and accelerations observed only phenomenologically—gives rise to inaccuracies in the formulation of its equations, which are incorrect for Galilean covariance. But the most serious flaw in the original formulation of electromagnetism is the erroneous identification of the flow velocity of the field (variable as 1/r2) with the speed of light c, with which it was demonstrated that the fields of charges in motion contract in the direction of motion (the Heaviside ellipsoid, 1888, 1889). From this error, historically due to the incomplete development of many hydrodynamics sectors (a situation that persists today), came Fitz Gerald’s contractions and finally, the relativistic theories. Some future research lines are proposed for a return to realistic physics and a possible but still weak form of Galilean covariance. 展开更多
关键词 Expanding Earth aether Central Flow Hydrodynamic Gravity Material Fields ELECTRODYNAMICS Galilean Covariance
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Oscillating Spacetime: The Foundation of the Universe
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作者 John A. Macken 《Journal of Modern Physics》 2024年第8期1097-1143,共47页
In this article, spacetime is modeled as a quantum mechanical sonic medium consisting of Planck length oscillations at Planck frequency. Planck length-time oscillations give spacetime its physical constants of c, G an... In this article, spacetime is modeled as a quantum mechanical sonic medium consisting of Planck length oscillations at Planck frequency. Planck length-time oscillations give spacetime its physical constants of c, G and ħ. Oscillating spacetime is proposed to be the single universal field that generates and unifies everything in the universe. The 17 fields of quantum field theory are modeled as lower frequency resonances of oscillating spacetime. A model of an electron is proposed to be a rotating soliton wave in this medium. An electron appears to have wave-particle duality even though it is fundamentally a quantized wave. This soliton wave can momentarily be smaller than a proton in a high energy collision or can have a relatively large volume of an atom’s orbital wave function. Finding an electron causes it to undergo a superluminal collapse to a smaller wave size. This gives an electron its particle-like properties when detected. The proposed wave-based electron model is tested and shown to have an electron’s approximate energy, de Broglie wave properties and undetectable volume. Most important, this electron model is shown to also generate an electron’s electrostatic and gravitational forces. The gravitational properties are derived from the nonlinearity of this medium. When an electron’s gravitational and electrostatic forces are modeled as distortions of soliton waves, the equations become very simple, and a clear connection emerges between these forces. For example, the gravitational force between two Planck masses equals the electrostatic force between two Planck charges. Both force magnitudes equal ħc/r2. 展开更多
关键词 Unification of Forces Electron Model Cosmological Constant Problem Foundation of Physics aether
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“大学生集成电路设计大赛”对于教学的影响 被引量:1
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作者 韦一 唐莹 《电子世界》 2015年第23期14-14,共1页
"大学生集成电路设计大赛"不仅给学生提供了展示自我的平台,也为教师的日常教学提供了帮助。本文探讨将大赛推荐的IC设计软件Aether引入半导体器件、模拟集成电路设计等微电子专业课程中。将知识点以图形的方式展现,有利于学... "大学生集成电路设计大赛"不仅给学生提供了展示自我的平台,也为教师的日常教学提供了帮助。本文探讨将大赛推荐的IC设计软件Aether引入半导体器件、模拟集成电路设计等微电子专业课程中。将知识点以图形的方式展现,有利于学生深入理解器件和电路的工作原理、应用特点及参数影响等内容,在教学中取得了良好的效果。 展开更多
关键词 教学改革 集成电路设计 aether
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鲐鱼蛋白水解液脱苦脱腥的研究 被引量:65
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作者 裘迪红 周涛 +1 位作者 戴志远 娄永江 《食品科学》 EI CAS CSCD 北大核心 2001年第5期37-39,共3页
分别采用活性碳吸附,β-CD包埋法,乙醚萃取法,酵母发酵法对鲐鱼蛋白水解液进行处理,经比较发现,酵母发酵法效果最佳,水解液中加入2%酵母粉进行35℃,1h发酵后,腥味基本脱除。
关键词 活性炭 乙醚萃取 Β-CD 酵母发酵 鲐鱼蛋白水解液 脱苦 脱腥
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松针褐斑病菌毒素LA-I的分离纯化及其化学结构 被引量:5
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作者 杨斌 叶建仁 +2 位作者 包宏 刘吉开 董泽军 《林业科学》 EI CAS CSCD 北大核心 2005年第2期86-90,共5页
采用柱层析和高效液相色谱分离相结合 ,从松针褐斑病菌的PD培养液中分离提纯到一种致毒活性物质LA -I,该物质为无色油状物。紫外扫描显示LA -I的最大吸收波长为 2 0 7nm。在 36 5nm和 2 5 4nm波长下LA -I无吸收。FAB- MS和HRFAB- MS分... 采用柱层析和高效液相色谱分离相结合 ,从松针褐斑病菌的PD培养液中分离提纯到一种致毒活性物质LA -I,该物质为无色油状物。紫外扫描显示LA -I的最大吸收波长为 2 0 7nm。在 36 5nm和 2 5 4nm波长下LA -I无吸收。FAB- MS和HRFAB- MS分别显示该毒素物质的相对分子质量和分子式为 16 2和C6 H1 0 O5;氢谱中的 2个信号 (δ1 2 6 ,δ4 2 2 )表明该毒素物质存在—OCH(CH3)—基团。碳谱显示有 3个碳信号 (δ181 0 9,δ6 6 99,δ2 1 6 9) ,证明存在—COOH ,—CH ,—CH3基团。综合质谱、核磁共振谱分析确定LA -I为COOHCH(CH3)OCH(CH3)COOH(α ,α′ -二丙酸醚 ) 。 展开更多
关键词 松针褐斑病菌 化学结构 毒素 分离纯化 液相色谱分离 最大吸收波长 相对分子质量 活性物质 分离提纯 扫描显示 COOH 核磁共振 红外光谱 LA 柱层析 培养液 分子式 谱分析 信号 基团
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