Fundamentals
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fundamentals of brain network analysis 概述及解释说明1. 引言1.1 概述脑网络分析是研究大脑功能和结构之间相互关系的重要方法。
通过对连接不同区域的神经元或脑区进行分析,可以揭示脑网络在认知、行为以及疾病发展中的作用。
近年来,随着计算能力的增强和数据采集技术的改进,脑网络分析已成为神经科学领域的热门研究方向。
1.2 文章结构本文将围绕脑网络分析展开详细介绍和解释。
首先介绍基础概念,包括什么是脑网络以及相关术语的定义和解释。
然后探讨构成脑网络的要素,涵盖不同类型的连接方式和其在信息传递中的作用。
接下来介绍脑网络分析所使用的方法与工具,包括图论、机器学习等技术,并说明它们在研究中的应用情况和优势。
1.3 目的本文旨在全面了解和解释脑网络分析领域中涉及到的基本概念、要素以及方法与工具,并回顾这些知识对于理解大脑功能和疾病机制的重要性。
此外,我们也将探讨脑网络分析在未来的发展趋势与挑战,以期为该领域的研究者提供参考和启示。
请确保文章内容的流畅性,并尽量使用清晰易懂的语言解释相关概念。
2. 正文:2.1 脑网络分析的基础概念脑网络分析是一种研究大脑连接模式和功能的方法。
它基于图论原理,将大脑视为一个复杂网络,通过分析节点(代表大脑区域)之间的连接以及连接强度来揭示大脑活动的本质。
脑网络分析被广泛应用于神经科学领域,对理解大脑的结构和功能具有重要意义。
2.2 脑网络的构成要素大脑网络主要由两个构成要素组成:节点和边。
在这里,节点代表特定的大脑区域或神经元群落,而边则表示这些节点之间存在的连接关系。
网络中的每个节点都具有一定的功能或特性,并且节点之间的连接可以根据不同的标准进行定义,如结构连接、功能连接等。
2.3 脑网络分析方法与工具在进行脑网络分析时,常用的方法包括静态方法和动态方法。
静态方法侧重于揭示大脑静息状态下的结构和功能连接模式,如静态脑网络分析、全局效能指数等;而动态方法则关注于研究大脑在时间和空间上的变化,如时序网络分析、突触可塑性等。
Fundamentals of Forest Products Chemical Processing 林产化工专业英语知到章节测试答案智慧树2023年最新东北林业大学绪论单元测试1.Generally, gum rosin is produced by chemical processing of woody rawmaterial.参考答案:错第一章测试1.Trace elements are essential to life.参考答案:对2.Elements with similar chemical properties generally fall into the same groupin the periodic table.参考答案:对3. A pure substance always has the same physical and chemical properties andis either an element or a compound.参考答案:对4.Calcium oxide is an inorganic compounds.参考答案:对5.Any chemical species capable of binding to electron pairs is called a Lewisacid; any molecule that tends to donate an electron pair is referred to as a Lewis base.参考答案:对6.In either case, the position of the multiple bond is indicated by numberingfrom the end of the chain, starting at the end that will assign the lowernumber to the first carbon atom of the multiple bond.参考答案:对7.Ethers tend to be reactive, and low molecular mass ethers are often used assolvents.错8.If one or both of the hydrogen atoms on the amide nitrogen atom arereplaced by hydrocarbon groups, the structure is named as an N-substituted amide.参考答案:对9.By doing research in chemistry, we can find new cures for diseases as well asbetter chemicals to use in our natural environment.参考答案:对第二章测试1.We can eat or drink in laboratories参考答案:错2.If a liquid gets into your eyes, the eye should be washed immediately withclean running water for at least 10min.对3.In the case of fire alarm, we need stop all of your ongoing work, turn off gasand electric devices.参考答案:对4.There is no need to label glass or flask filled with solution.参考答案:错5.If you work with flammable solvent, make sure there is no source of ignitionclose by.参考答案:对第三章测试1.Fossilised biomass has been exploited as coal and oil.对2.The relative distribution of phenolic nuclei in lignin strongly differs betweenplant species.参考答案:对3.The role of hemicellulose is to modify and crosslink the basic fibrils andpromote the interaction between other biopolymers.参考答案:对4.Softwoods are mainly vessel members, fibres, and parenchyma, andhardwoods are mainly made of made of tracheids and parenchyma.参考答案:对5.The outer layer (S1) is thicker than The middle layer (S2).参考答案:错6.Klason lignin is a standard analytical method to measure the lignin contentof lignocellulosic biomass.参考答案:对7.For esterification reaction of cellulose, the conversion was low and forsilynation reaction, the conversion is good but with a high cost.参考答案:对8.Cellulose has many hydroxyl groups which can form hydrogen bondinglinked network easily.参考答案:对9.Highly porous aerogels usually tend to show higher oil-sorption capacities参考答案:对10.Starch only has one forms, i.e. amylose.参考答案:错11.In addition to glucomannan, minor amounts of miscellaneouspolysaccharides are present in hardwoods.参考答案:错12.The softening temperature (Ts) of lignins in dry state is higher than that inmoist lignins.参考答案:对13.The reactivity of lignin has nothing to do with its solubility.参考答案:错14.Lignin mainly has two types of linkages including C-C and C-O-C.参考答案:对15.The non-bonded orbital interactions (π-π interactions) of the aromaticgroups could caused the association of lignin molecules.参考答案:对16.The aromatic moieties present in the lignin structure will improve themechanical and thermal properties of epoxy resins.参考答案:对17.There are two different types of polysaccharide hydrolysis, involving acidic(sulfuric acid) or enzymatic reactions.参考答案:对18.Terpene is derive from a 5C compound, isoprene.参考答案:对19.Polyphenols also characteristically possess a significant binding affinity forproteins, which can lead to the formation of soluble and insoluble protein-polyphenol complexes参考答案:对20.Cardanol double bond may be epoxidised or undergo olefin-metathesisreaction which may act as modified monomer for the formation of different set of polymers.参考答案:对第四章测试1.Sodium hydroxide and calcium hydroxide can be used instead of potassiumhydroxide to neutralize the acid.参考答案:对2.Hot air blows into this dryer to bring the sugars humidity level down to 0.05percent, that standard for table sugar.参考答案:错3.The main resistance to the flow of heat or mass to a surface lies within thelaminar sublayer.参考答案:对4.Filter cakes are formed late in the fluid flow.参考答案:错5.Extraction may be used to separate more than two components; andmixtures of solvents, instead of a single solvent, are needed in someapplications.参考答案:对6.Heat fluxes may then be based either on the inside area or the outside area ofthe choice is arbitrary.参考答案:对7.Any evaporator that uses pump to ensure higher circulation velocity is calleda forced circulation evaporator.参考答案:对8.If the feed is introduced at one point along the column shell, the column isdivided into an upper section, which is often called the stripping section, anda lower section, which is often referred to as the rectifying section.参考答案:错9.Drying is an absolute term that means a certain value.参考答案:错第五章测试1.The traditional techniques of solvent extraction of plant materials are mostlybased on the correct choice of solvents and the use of heat or/and agitationto increase the solubility of the desired compounds and improve the masstransfer.参考答案:对2.They spray the rubber cubes with a mix of calcium carbonate and solvent themixture forms the film on the cubes that prevents mold and keeps them from sticking together during transport.参考答案:对3.Biomass is mostly made up of carbon, hydrogen, compounds did not burncalled ash.参考答案:对4.Biochemical approaches include three unit-operations namely, pretreatment,hydrolysis, and distillation.参考答案:错5.Furfural can be produced by a one-step or a two-step process. The advantageof the one-step process is that a higher quantity of furfural is produced when compared to the two-step process.参考答案:错6. A worm screw supply the mixture to a press roll, a constant spray of waterkeeps the mixture from sticking to it.参考答案:对7.Chemical activation is usually carried out at lower temperatures (from 400 to700℃) with activating agents like phosphoric acid, potassium hydroxide,sodium hydroxide and zinc chloride.参考答案:对8.Generally, the cellulosic cell wall from nearly any plant or trees can be usedfor pulp.参考答案:对9.When the paper is dry it may be treated with stabilizing materials andsurface finishes to improve durability or printability.参考答案:对。
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fundamentals of microelectronics中文
《微电子基础》是一本介绍微电子基本原理和技术的教材。
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