Numerical investigation of the effects of soil-structure and granular material-structure interaction on the seismic response of a flat-bottom reinforced concrete silo

In this work,a numerical study of the effects of soil-structure interaction(SSI)and granular material-structure interaction(GSI)on the nonlinear response and seismic capacity of flat-bottomed storage silos is conducted.A series of incremental dynamic analyses(IDA)are performed on a case of large reinforced concrete silo using 10 seismic recordings.The IDA results are given by two average IDA capacity curves,which are represented,as well as the seismic capacity of the studied structure,with and without a consideration of the SSI while accounting for the effect of GSI.These curves are used to quantify and evaluate the damage of the studied silo by utilizing two damage indices,one based on dissipated energy and the other on displacement and dissipated energy.The cumulative energy dissipation curves obtained by the average IDA capacity curves with and without SSI are presented as a function of the base shear,and these curves allow one to obtain the two critical points and the different limit states of the structure.It is observed that the SSI and GSI significantly influence the seismic response and capacity of the studied structure,particularly at higher levels of PGA.Moreover,the effect of the SSI reduces the damage index of the studied structure by 4%.

The Absence of “Perfect Induction”in the Science

The present paper is finalized to show that the Science, even if considered in its two different Phenomenological Approaches at present known, is unable to assert that: “Thinks are like that”. This is because both the two Scientific Approaches previously mentioned have not the property of “the perfect induction”. Consequently, although they can even reach an experimental confirmation of the theoretical results, and thus a “valid description” of the various phenomena of the surrounding world, such a description has not an “absolute value”. In fact, it always and only has an “operative validity”, that is, it exclusively and solely refers to an “experimental point of view”. This means that such an “operative validity” cannot represent the basis for a logical process characterized by a “perfect induction”. In addition, the Traditional Scientific Approach is also characterized by “Insoluble” Problems, “Intractable Problems”, Problems with “drifts”, which could generally be termed as “side effects”. On the other hand, the same com-possible Scientific Approach based on the Emerging Quality of Self-Organizing Systems, also presents its “Emerging Exits”. Consequently, none of the two mentioned scientific Approaches has the “gift” of “the perfect induction”. However, there are significant differences between the two. Differences that may “suggest” the most appropriate choice among them for an “operative point of view”. This conclusion will be com-proved by considering, with particular reference, both the “side effects”, which are related to the Traditional Approach and, on the other hand, the “Emerging Exits”, which specifically pertain to the new Scientific Approach based on the Emerging Quality of Self-Organizing Systems.

Whole Perfect Vectors and Fermat’s Last Theorem

A naïve discussion of Fermat’s last theorem conundrum is described. The present theorem’s proof is grounded on the well-known properties of sums of powers of the sine and cosine functions, the Minkowski norm definition, and some vector-specific structures.

Mammut:The brand's path to innovation

The perfect jacket for anyone looking for a technical allrounder.The Alto Guide is perfect for everything from day hikes to first adventures in mountaineering.Durable stretch Mammut DRYtechnology^(TM)Pro 3-layer material is breathable,waterproof and PFC-free.Multiple features,which include backpack-compatible front pockets,a helmet-compatible hood with reinforced peak,and a 2-way zipper for easy climbing harness access,make the hard-wearing Alto Guide an ideal weatherproof jacket for mountain and hiking tours.A smart choice for your mountain sport adventures:technical,functional and durable.

The study of English perfective aspect

Through this research, on the basis of English-Chinese and Chinese-English parallel corpora, the following conclusion tries to be drawn： In English, the perfect may not be used together with the specific time of the past situation. In contrast to English, Chinese does not have perfect constructions. English perfective aspect is an actual aspect indication： duration and completion of an action or situation. According to different reference time, the actual aspect can be divided into past actuality, present actuality and future actuality. This paper will undoubtedly contribute to the study of tense-aspect in Chinese. The study of English perfective aspect is conducive to the comparative study and translation of aspect in English and Chinese.

Forget the past, there is no future

Traditional medicine has been gradually accumulated and perfected in the long history of human development.However,a large number of traditional medical studies today ignore the history and role of the research object,and the research results are difficult to integrate into traditional medicine.There is a natural gap and divide between traditional medical researchers and practitioners.A traditional research result will either be absorbed by modern medicine,or disappear in massive literature information,and only a few research results can be absorbed by traditional medicine itself.Traditional Medicine Research has always encouraged and helped researchers to briefly describe the historical evolution of the research subject since its inception,and promoted the development and innovation of traditional medicine research based on inheritance.

A Remark on the Characterization of Triangulated Graphs

In this study, we consider the problem of triangulated graphs. Precisely we give a necessary and sufficient condition for a graph to be triangulated. This gives an alternative characterization of triangulated graphs. Our method is based on the so-called perfectly nested sequences.

Perfecting the Service Network for Enterprises with Joint Efforts

"The year of 2022 marked the70th anniversary of the founding of the China Council for the Promotion of International Trade(CCPIT),and it was also a milestone in the development history of trade promotion.Under the strong leadership of the Central Committee of the Communist Party of China(CPC) with Comrade Xi Jinping at its core,the national trade promotion system faced up to difficulties,forged ahead.

Why Practice Makes Perfect Sense: the Past, Present and Potential Future of the PPP Paradigm in Language Teacher Education

(接上期)Context 3:EFL and ESOL learners at lower levels of achievement The third context relates largely to my own teaching in the adult EFL and ESC OL sectors in the UK,where I make use of PPP with classes of learners that tend towards the following characteristics:1.low levels of overall language proficiency;2.low language learning aptitude;3.low levels of literacy;4.low levels of learner autonomy;5.limited experience of formal classroom study;6.specific educational needs.

Theory of complex-coordinate transformation acoustics for non-Hermitian metamaterials

Transformation acoustics(TA)has emerged as a powerful tool for designing several intriguing conceptual devices,which can manipulate acoustic waves in a flexible manner,yet their applications are limited in Hermitian materials.In this work,we propose the theory of complex-coordinate transformation acoustics(CCTA)and verify the effectiveness in realizing acoustic non-Hermitian metamaterials.Especially,we apply this theory for the first time to the design of acoustic parity-time(PT)and antisymmetric parity-time(APT)metamaterials and demonstrate two distinctive examples.First,we use this method to obtain the exceptional points(EPs)of the PT/APT system and observe the spontaneous phase transition of the scattering matrix in the transformation parameter space.Second,by selecting the Jacobian matrix's constitutive parameters,the PT/APT-symmetric system can also be configured to approach the zero and pole of the scattering matrix,behaving as an acoustic coherent perfect absorber and equivalent laser.We envision our proposed CCTAbased paradigm to open the way for exploring the non-Hermitian physics and finding application in the design of acoustic functional devices such as absorbers and amplifiers whose material parameters are hard to realize by using the conventional transformation method.

Trend, Mechanism and Path: Analysis of the Integrated Development of Henan Intangible Cultural Heritage and Tourist Industry with Digital Empowerment

Up till now,Henan has established a relatively perfect Intangible Cultural Heritage listing system and protection system,which lays a foundation for the digitalization of Intangible Cultural Heritage.Meanwhile,Henan has vigorously carried out research on the activation of digital Intangible Cultural Heritage,resulting in improving the capabilities of digital application of Intangible Cultural Heritage.

Training The Traders

China-sponsored centre in Djibouti is providing crucial know-how to young entrepreneurs in Africa Evans Otieno,34,is the perfect embodiment of a true go-getter,as reflected in his success in perfecting the art of making money through cross-border e-commerce.Starting from the humble beginning of being a street vendor in Naivasha Town,northwest of Nairobi,Kenya’s capital,he has now become an automotive dealer who supplies spare parts to garage owners in Nairobi’s central business district.

Reduced Imaging Time and Improved Image Quality of 3D Isotropic T2-Weighted Magnetic Resonance Imaging with Compressed Sensing for the Female Pelvis

This study is to compare three-dimensional(3D)isotropic T2-weighted magnetic resonance imaging(MRI)with compressed sensing-sampling perfection with application optimized contrast(CS-SPACE)and the conventional image(3D-SPACE)sequence in terms of image quality,estimated signal-to-noise ratio(SNR),relative contrast-to-noise ratio(CNR),and the lesions’conspicuous of the female pelvis.Thirty-six females(age:51,28-73)with cervical carcinoma(n=20),rectal carcinoma(n=7),or uterine fibroid(n=9)were included.Patients underwent magnetic resonance(MR)imaging at a 3T scanner with the sequences of 3D-SPACE,CS-SPACE,and twodimensional(2D)T2-weighted turbo-spin echo(TSE).Quantitative analyses of estimated SNR and relative CNR between tumors and other tissues,image quality,and tissue conspicuity were performed.Two radiologists assessed the difference in diagnostic findings for carcinoma.Quantitative values and qualitative scores were analyzed,respectively.The estimated SNR and the relative CNR of tumor-to-muscle obturator internus,tumor-to-myometrium,and myometrium-to-muscle obturator internus was comparable between 3D-SPACE and CS-SPACE.The overall image quality and the conspicuity of the lesion scores of the CS-SPACE were higher than that of the 3D-SPACE(P<0.01).The CS-SPACE sequence offers shorter scan time,fewer artifacts,and comparable SNR and CNR to conventional 3D-SPACE,and has the potential to improve the performance of T2-weighted images.

法院参与涉案企业刑事合规改革十大问题研究

涉案企业刑事合规改革中法院参与乃必然趋势,各地在理论准备不足、制度缺位的情况下进行改革探索,其困难和困惑自不待言,法官在参与该项工作时的消极态度即是明证。法院如何参与涉案企业合规改革确实是一个值得探讨的问题。这其中的重点问题包括法院参与的理论基础、职能作用的发挥、法院开展合规审查考察期的确定、法院进行合规审查适用的案件范围和适用的诉讼阶段、从宽幅度的把握、考察报告的证据属性、法院如何为申请进行合规审查的被拒企业及其责任人提供救济、刑事合规在法院审判中的刑法适用、容错机制的建立、最高人民法院发布指导性案例的必要性等十个方面。对这些问题进行探索,可以为法院参与涉案企业合规改革提供理论支持和参考。

基于金属-介质-金属的可调谐窄带完美吸收的研究

为了实现窄带完美吸收,本文提出了一种简单的三层金-二氧化硅-金薄膜(MDM)结构。通过电磁波时域差分算法(FDTD)进行模拟仿真和理论计算,详细分析了该结构的可调谐吸收特性,同时建立了理论模型,分析了其中存在的电磁模式以及窄带完美吸收的物理机制。首先,利用电磁波时域差分算法和传输矩阵算法(TMM)对该结构进行了理论计算,详细地分析了各个结构参数对吸收光谱的影响。然后,对该结构形成的窄带完美吸收物理机制进行了分析讨论。最后,利用磁控溅射制备手段,成功制备了三层结构的样片。实验观测到的结果与理论仿真一致。实验结果表明:本文提出的窄带完美吸收结构,最窄带宽约为21 nm,最高吸收可达99.51%,基本实现了窄带完美吸收。本文研究成果为相关应用奠定了基础。

低相关区互补序列集的构造方法研究

完备互补序列是一类具有理想相关函数性质的信号,在多址接入通信系统、雷达波形设计等领域具有广泛的应用。然而完备互补序列集合大小不超过其子序列数目。为扩展互补序列数目,该文研究了非周期低相关区互补序列集的构造方法,首先提出了两类有限域上的映射函数,进而得到两类参数渐近达到最优的低相关区互补序列集。该类低相关区互补序列集相比完备互补序列集具有更多的序列数目,在通信系统中可支持更多的用户。

《焊接机器人技能实训》课程思政的教学研究与探索

以智能焊接技术专业《焊接机器人技能实训》课程为例,通过对教学项目的创新设计,实现知识传授、思政教育、素质教育和能力培养的紧密结合。在教学实施过程中,挖掘课程蕴含的思政点,融入“感悟工匠精神,捍卫质量安全,立志技能报国”的思政主题,有针对性地、以润物细无声的方式将家国情怀、职业精神、人生观、价值观、严谨细致、精益求精的职业理念融入课堂;通过制度来规范学生的行为,通过活动来激励学生的潜能,在学生成长的过程中树立一些榜样,用“榜样”引领他们成长,有效达成了“厚基础、精技能、擅创新”的教学目标。

“行刑”反向衔接的实践难点及对策思考

“行刑”衔接是我国建设法治政府、法治社会的迫切要求,也是促进依法行政和公正司法的重要举措。2023年7月,最高人民检察院专门印发关于行刑双向衔接的意见,“行刑”衔接的外延明确包括“正向衔接”和“反向衔接”。实践中,“行刑”反向衔接存在不刑不罚、应移未移、应罚未罚等问题,因此,有必要分析当前“行刑”反向衔接的实践难点及原因,进而在制度设计、平台建设、标准流程、统筹协调等方面,完善“行刑”反向衔接机制。

韶文化融入高校思想政治教育的现实意义和实现路径

韶文化作为中华优秀传统文化,具有“源、流、交、融”的内涵,包括红色文化、韶乐文化、家风文化、名人文化、工矿文化等文化内容,其精神特质为包容和谐、耕读传家、尽善尽美。韶文化融入高校思想政治教育对于韶文化、高校思想政治教育、大学生的发展均有现实意义,可以通过建设韶文化校园网站、挖掘韶文化教学资源、拓宽韶文化教学阵地,同时利用现代科技丰富教学,高校、政府、媒体合力育人的具体路径来实现韶文化融入高校思想政治教育。

唐君毅的和合思维

唐君毅先生学识渊博,对于中、西、印学皆有一定程度的研究。而他的个性圆融,在面对历史上各家或学派论争时,大多不会去评判各派的高低或对错,而是看出各家专长所在,各给出一个位子。此近似郭象之圆教观,所谓的各美其美!唐先生此一和合态度与圆融思想,除了是他个性使然,亦与他涵泳于中华文化而深得其味有关,诸如华严宗的一多相即、相摄相入;《庄子·天下篇》道术之六通四辟、无乎不在,以及《中庸》的中和思想、万物并育而不相害等精神,在滋养其非凡卓识与感通精神——其卓识要去创辟天地之包容,其感通要去持应万物之共谐,从而圆成唐先生心中华夏文化之谐和天地。