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1. chinaXiv:202104.00004 [pdf]

QZNs: Quantum Z-numbers

Deng, Jixiang; Deng, Yong
Subjects: Computer Science >> Integration Theory of Computer Science

Because of the efficiency of modeling fuzziness and vagueness, Z-number plays an important role in real practice. However, Z-numbers, defined in the real number field, lack the ability to process the quantum information in quantum environment. It is reasonable to generalize Z-number into its quantum counterpart. In this paper, we propose quantum Z-numbers (QZNs), which are the quantum generalization of Z-numbers. In addition, seven basic quantum fuzzy operations of QZNs and their corresponding quantum circuits are presented and illustrated by numerical examples. Moreover, based on QZNs, a novel quantum multi-attributes decision making (MADM) algorithm is proposed and applied in medical diagnosis. The results show that, with the help of quantum computation, the proposed algorithm can make diagnoses correctly and efficiently.

submitted time 2021-04-12 Hits237Downloads110 Comment 0

2. chinaXiv:202101.00003 [pdf]

On dark matter

Xian-Qiao Yu
Subjects: Physics >> The Physics of Elementary Particles and Fields

In this article, I shall propose a new model of dark matter, in which I introduce a neutral primordial axial-vector field, which is a new field beyond the standard model. All the standard model elementary particles are produced spontaneously from this field in the Big Bang epoch of the universe and then these produced elementary particles decayed or annihilated in the well-known standard model interactions. The relic of the primordial axial-vector field appears in a form of vacuum energy can not only give naturally the correct abundance of dark matter in the present universe, but provide a natural solution to the cosmological constant problem as well. Some possible experiments for testing the new theory of dark matter are also suggested in this article.

submitted time 2021-03-29 Hits1749Downloads367 Comment 0

3. chinaXiv:202009.00051 [pdf]

Obtain weighted values of solar stills’ environment factors by using supervised machine learning

王云鹏; 彭桂龙; 杨诺; Swellam W. Sharshir ; AbdAllah W. Kandeal
Subjects: Materials Science >> Nanoscience and Nanotechnology

太阳能蒸馏器由于其简单的结构和环保的能力,近年来引起了越来越多的关注。在本研究中,利用一种成熟的机器学习算法——随机森林,得到环境因子对蒸发效率的加权值。为了检验随机森林与数学数据分析之间的先进性,我们采用了两种传统的数据科学方法——配对图法和皮尔逊相关分析法进行比较。分析中使用的实验数据来自2014年以来的约100篇文章。结果表明,热设计是实现太阳能高效蒸发的最重要因素。这将促进太阳能蒸馏器蒸发效率的研究。

submitted time 2021-03-26 Hits4297Downloads624 Comment 0

4. chinaXiv:202102.00082 [pdf]

汉语发展性阅读障碍儿童视觉同时性加工技能子成分的发展及其与阅读的关系

李杰; 杨悦; 赵婧
Subjects: Psychology >> Cognitive Psychology

通过分别以高频汉字(实验1)和图形非言语材料(实验2)为刺激的两个联合视觉注意任务,并采用基于Budensen视觉注意理论的参数估计方法,系统地探查小学三~六年级汉语发展性阅读障碍儿童的视觉同时性加工技能缺陷的内在机制。以43名汉语发展性阅读障碍儿童和46名生理年龄匹配典型发展儿童为被试,每类被试均被分为小学中年级组(三、四年级)和高年级组(五、六年级)。两个实验均发现不同年级组的阅读障碍儿童在知觉加工速度参数上显著小于控制组儿童。在空间注意分布权重参数上,实验1的结果显示,不同于控制组儿童向左侧化发展的注意分布模式,两个年级组的阅读障碍儿童均表现为无偏的注意分布;而实验2未发现显著组别差异。且这两种同时性加工子技能分别与不同水平的汉语阅读技能密切相关。结果表明,汉语阅读障碍儿童在同时加工多个视觉刺激时存在持续的知觉加工速度缓慢的问题,在同时加工言语类刺激时还表现出异常的空间注意分布模式。本研究有助于从基础认知层面揭示汉语发展性阅读障碍儿童的缺陷机理,为进一步设计相关的提高阅读效率的干预方案提供理论依据。

submitted time 2021-03-05 Hits1894Downloads380 Comment 0

5. chinaXiv:202103.00013 [pdf]

脑岛在成瘾中的结构和功能异常

贺馨宇; 何清华
Subjects: Psychology >> Cognitive Psychology

脑岛位于大脑外侧裂的深处,与情绪和内感受等多种心理功能有关。脑岛在成瘾中的结构变化和功能连接异常,表明了脑岛在成瘾中的作用,刺激脑岛区域干预成瘾的也逐渐成为研究者们关注的领域。未来的研究应该通过对脑岛进行精细分割和多种方法相结合来进一步考察脑岛在成瘾中的具体作用,并挖掘不同成瘾类型的共性和特性,以便更好开展基于脑的成瘾干预。

submitted time 2021-03-02 Hits1391Downloads290 Comment 0

6. chinaXiv:202102.00021 [pdf]

定向遗忘的编码加工机制

寇东晓; 顾文涛
Subjects: Psychology >> Cognitive Psychology

有目的的遗忘(定向遗忘)需要耗费认知努力吗?有研究发现,定向遗忘可能是被动衰减的结果,即F项目(需要遗忘的项目)未获得有效复述是选择性复述了R项目(需要记住的项目)造成的,这一加工过程不需要认知努力;但也有研究表明,定向遗忘过程可能是遗忘线索诱发的对记忆加工的主动抑制,需要耗费认知努力,脑认知研究中发现的前额叶ERPs成分为这一机制提供了证据。还有一种观点认为,定向遗忘编码过程可能同时包含主动抑制与被动衰减,但是尚不清楚两种加工机制相互作用的方式。为进一步澄清定向遗忘编码阶段的认知机制,未来研究需要将非认知因素纳入考察,并关注不同人群的定向遗忘特征,在此基础上尝试解决理论争议。

submitted time 2021-02-28 Hits1517Downloads338 Comment 0

7. chinaXiv:201705.00829 [pdf]

Entropy-partition of Complex Systems and Emergence of Human Brain’s Consciousness

Xi Guangcheng
Subjects: Mathematics >> Statistics and Probability

The three frameworks for theories of consciousness taken moust seriously by neuroscientists are that consciousness is a biological state of the brain,the global workspace perspective,and the perspective of higher state. Consciousness is discussed from viewpoint of theory of Entropy—partition of complex system in present article. Human brain’s system self-organizably and adaptively implements partition、aggregation and integration, and consciousness emerges.

submitted time 2021-02-28 Hits19959Downloads1951 Comment 0

8. chinaXiv:201904.00075 [pdf]

A new approach to characterize the violation of Lorentz invariance

胡锦文
Subjects: Physics >> Geophysics, Astronomy, and Astrophysics

本文引入了一个参量n来表征不同惯性系间光速的变化。为了满足众所周知的基本原理,又不违背一些可靠的实验结果,我们应该对n施加一些必要的约束。首先,重要的是,n的引入应该符合以下三个原则:(1)我们可以用一个规定的时钟同步来定义整个空间中的时间;(2)时间是均匀的,空间是各向同性的;(3)所有的惯性系统都是等价的,这是对狭义相对论(SR)思想的继承。在n的一些约束条件下,我们构造了一个满足惯性系对称性的一般坐标变换。近年来,许多理论都表现出对超高能量尺度下洛伦兹不变性的破坏的兴趣,例如量子引力,它暗示粒子的能量有一个有限值(称为普朗克能量),而不是从洛伦兹模型导出的无限值。因此我们构造一个n的表达式来描述洛伦兹模型的违逆。进一步,通过与著名的彩虹模型比较,我们发现本文推导的“最大能量”与彩虹模型假设的“最大能量”有一定的关系。

submitted time 2021-02-25 Hits14755Downloads698 Comment 0

9. chinaXiv:202102.00080 [pdf]

Development of X-ray spectrometer automatic adjustment system based on global optimization algorithm

Fei Zhan
Subjects: Physics >> Nuclear Physics

In high energy resolution X-ray spectroscopy beamlines of synchrotron radiation (SR) facilities and laboratory XAS/XES spectrometer, it is important to keep X-ray spectrometer operating in optimal conditions. The adjusting process is normally very time consuming due to the irregular light source beam point, and it is difficult to get global optimum. This study aims to develop an intelligent adjusting system based on global optimization algorithm for spectrometers on SR beamlines and on laboratory x-ray source. First of all, based on the two dimensional experimental data, automatic adjustment process was established. Then the automatic optimization was applied to adjust X-ray spectrometer practically, and upgraded iteratively. The online testing is carried out on a self-developed laboratory XAS spectrometer. Online tests results show that this automatic adjustment process converges to the optimal solution quickly, and the convergence time is about several dozens to hundreds steps, more efficient than manual optimization process. After automatic adjustment, we can get correct X-ray absorption spectrum based on the adjusted spectrometer.

submitted time 2021-02-25 Hits1276Downloads187 Comment 0

10. chinaXiv:202011.00114 [pdf]

精神分析的主体间转向:理论特征与分歧

张巍; 郭本禹; 张磊
Subjects: Psychology >> History of Psychology

主体间理论是当代精神分析领域最重要的取向之一。与更传统的精神分析相比,其理论特征表现为从区分“内/外”空间到强调“之间”的空间、从“主体—客体”关系到“主体—主体”关系、从顿悟到行动、从基础主义和实证主义到诠释学和建构主义。尽管存在术语的混乱和观点的分歧,但精神分析的主体间转向几乎遍及各个流派,广泛影响了北美洲、欧洲和拉丁美洲的诸多分析师。未来的主体间理论需要保持开放的态度,持续与先前的理论、临床资料和其他学科领域对话。

submitted time 2021-02-22 Hits2685Downloads679 Comment 0

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