13 research outputs found

    On Timothy Williamson's Knowledge Norm of Belief

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    信念的规范问题研究是近年来西方知识论学界研究的热点问题。首先,威廉姆森(TimothyWilliamson)主张信念的知识规范。这一主张的依据是他的“知识优先”知识论。其次,除信念的知识规范外,知识论学界还存在两种与之竞争的规范理论:即信念的真之规范和信念的无规范理论。威廉姆森对信念的真之规范做出了反驳并捍卫了信念的知识规范。最后,针对三种不同的信念规范理论之间的争论,作者基于威廉姆森的立场对其它两种信念规范作出进一步的反驳,同时一些学者对信念的知识规范理论本身发出了质疑,笔者对这些质疑作出反驳并应用“知道蕴含真”这一原则进一步捍卫威廉姆森的信念的知识规范理论。 第一章论述威廉姆森的知识理论...The debate over the norm of belief is an important issue in contemporary epistemology. Firstly, according to Timothy Williamson’s ‘knowledge first’ epistemology, Williamson argues for knowledge norm for belief (KNB, in short). Secondly, except for KNB, there are two different theories about norm of belief, such as truth norm of belief (TNB, in short) and no norm of belief (NNB,in short).Williamson...学位:哲学硕士院系专业:人文学院_外国哲学学号:1042013115237

    污泥型煤技术处理污泥的基础研究制备废水污泥型煤工艺条件的研究

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    提出了粉煤与污泥共混压制型煤的方法,以实现污泥的洁净化、能源化处理。研究了不同成型条件,如成型压力、水份、不同污泥及混合比例等对污泥型煤性质的影响,并根据上述实验结果提出制备污泥型煤的优化工艺,给出不污泥与煤共成型的机理模型。结果表明:污泥添加的比例为20~30%之间,成型压力高于20MPa时,型煤的抗压强度高于添加10%黄泥所制型煤的强度。由此得出污泥完全可以代替黄泥;污泥型煤的热值高于黄泥型煤,而且型煤的热值与污泥的种类有关

    污泥型煤技术处理污泥的基础研究等温燃烧过程中noxso2释放规律的考察

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    利用固定床管式炉反应器进行几种污泥以及不同型煤的等温燃烧实验,研究了NOx、SO2等污染物的释放规律,发现污泥单独燃烧时污染物释放浓度高,造成严重环境污染;而添加固硫剂的不同污泥型煤的等温燃烧时,NOx、SO2的释放浓度低得多,可以能源化、洁净化处理大量污泥

    污泥型煤技术处理污泥的基础研究Ⅰ.制备废水污泥型煤工艺条件的研究

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    提出了粉煤与污泥共混压制型煤的方法,以实现污泥的洁净化、能源化处理。研究了不同成型条件,如成型压力、水份、不同污泥及混合比例等对污泥型煤性质的影响,并根据上述实验结果提出制备污泥型煤的优化工艺,给出不污泥与煤共成型的机理模型。结果表明:污泥添加的比例为20~30%之间,成型压力高于20MPa时,型煤的抗压强度高于添加10%黄泥所制型煤的强度。由此得出污泥完全可以代替黄泥;污泥型煤的热值高于黄泥型煤,而且型煤的热值与污泥的种类有关

    污泥型煤技术处理污泥的基础研究Ⅱ等温燃烧过程中NO_x、SO_2释放规律的考察

    No full text
    利用固定床管式炉反应器进行几种污泥以及不同型煤的等温燃烧实验,研究了NOx、SO2等污染物的释放规律,发现污泥单独燃烧时污染物释放浓度高,造成严重环境污染;而添加固硫剂的不同污泥型煤的等温燃烧时,NOx、SO2的释放浓度低得多,可以能源化、洁净化处理大量污泥

    Application of Surface-enhanced Raman Spectroscopy in the Fast Screening of Phosphodiesterase Type 5 Inhibitors

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    采用表面增强拉曼光谱(; SERS)技术并结合简单的前处理流程,对保健品样品中11种西地那非类药物进行了非定向快速筛查研究.结果表明,11种西地那非类药物可根据结构分为5; 类,类别之间SERS谱图差异显著;类别内SERS谱图具有共性特征,特征峰相对强度差异明显.实际样品的检测中,西地那非类药物的最低检出浓度约为0.; 05 mg /kg;前处理和测试的总时长约为3~ 5; min,且与检测目标物和样品无关.本方法高灵敏度、快速和非定向检测的设计理念为快速检测保健品中违禁添加药物提供了新思路和新方法.Aiming at the absence of a fast and effective screening technique facing the prevalence of the illegal adulterant of Phosphodiesterase type 5 (PDE-5) inhibitor in health products, a non. designated detection platform based on surface. enhanced Raman spectroscopy (SERS) was proposed. Integrated with a simple pretreatment process in 3-5 min, SERS measurement was carried out on those suspicious health product samples with the lowest detectable concentration at a level of 0.05 mg/kg. The advantages of short time and high sensitivity satisfy the urgent demand of the fast screening and on. site inspection of the authorities.National Natural Science Foundation of China [21473140];; University-Industry Cooperation Foundation of Fujian Province, China; [2016Y4012]; Fundamental Research Funds for the Central Universities,; China [2072016011

    Measurement of integrated luminosity of data collected at 3.773 GeV by BESIII from 2021 to 2024

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    We present a measurement of the integrated luminosity e+e- of collision data collected by the BESIII detector at the BEPCII collider at a center-of-mass energy of Ecm = 3.773 GeV. The integrated luminosities of the datasets taken from December 2021 to June 2022, from November 2022 to June 2023, and from October 2023 to February 2024 were determined to be 4.995±0.019 fb-1, 8.157±0.031 fb-1, and 4.191±0.016 fb-1, respectively, by analyzing large angle Bhabha scattering events. The uncertainties are dominated by systematic effects, and the statistical uncertainties are negligible. Our results provide essential input for future analyses and precision measurements
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