1,148 research outputs found
A nonparametric two-sample test of the failure function with interval censoring case 2
No full textFor the setting of interval censoring case 2, a nonparametric two-sample test, based on a smooth functional of the nonparametric maximum pseudolikelihood estimator, is developed to compare the failure functions of two populations. Monte Carlo simulation studies on Weibull distributions show that this test performs quite well in many situations in comparison with the parametric likelihood ratio test. A real dataset from an study is used to illustrate the new test
sj-pdf-1-jcb-10.1177_0271678X231153730 - Supplemental material for In vivo synaptic density loss correlates with impaired functional and related structural connectivity in Alzheimer’s disease
No full textSupplemental material, sj-pdf-1-jcb-10.1177_0271678X231153730 for In vivo synaptic density loss correlates with impaired functional and related structural connectivity in Alzheimer’s disease by Junfang Zhang, Jie Wang, Xiaomeng Xu, Zhiwen You, Qi Huang, Yiyun Huang, Qihao Guo, Yihui Guan, Jun Zhao, Jun Liu, Wei Xu, Yulei Deng, Fang Xie and Binyin Li in Journal of Cerebral Blood Flow & Metabolism</p
Bacterial magnetofossil evidence for enhanced Pacific Ocean respired carbon storage during buildup of Antarctic glaciation
No full textGlobal cooling with the onset of Antarctic glaciation ca. 34 Ma across the Eocene-Oligocene transition (EOT) terminated the early Cenozoic greenhouse climate state and marked the beginning of icehouse conditions. Although a pCO
2 decline is considered to have been a major cause of this climate shift, the associated carbon-sequestration mechanism remains unclear. Here, we assessed ocean production and circulation changes across the EOT using numerical simulations combined with a novel proxy, namely, bacterial magnetofossils, the abundance and morphology of which are sensitive to sedimentary organic matter accumulation and oxygenation. We detected production and oxygenation declines in the equatorial Pacific Ocean coeval with increased biological production in the Southern Ocean after the EOT. Corroborated by simulation results and evidence from the Subantarctic region, we interpret this counterintuitive combination as a result of enhanced bottom-water formation and biological pump efficiency in the Southern Ocean due to Antarctic glacial buildup across the EOT. These results provide key evidence for deep Pacific Ocean deoxygenation and increased respired carbon concentrations, which amplified CO
2 decline across the EOT.</p
Study of Optical Speed Gates for Railway Transportation
No full textAbstract: As the backbone of the metro transport system in large cities, the passenger flow is huge, such as the Shanghai Metro, Beijing Metro daily average passenger flow in more than ten million people. Gate as a human-machine system equipment in and out of the station, switching gate frequency is high, especially during the peak period of passenger flow, the gate's operation pressure is greater, for the rapid passage of passenger flow has a certain pressure. Through the reverse thinking, it is proposed that the default state of the gate is open, and the corresponding passage signal is projected through the projection lamp to indicate whether the passengers can pass or not. By making this optimisation method into a practical demonstration model to prove the practical operability of the idea and test the ideal effect to a certain extent. This can greatly improve the passage efficiency and passenger experience, reduce the wear and tear of the equipment, prolong the life of the equipment, and at the same time, reduce energy consumption.
Keywords: rail transit; reverse thinking; gates; high efficiency; energy saving; humanization.
Title: Study of Optical Speed Gates for Railway Transportation
Author: Chen Yihui, Ma Ziyan, Chen Wenjie
International Journal of Thesis Projects and Dissertations (IJTPD)
Vol. 11, Issue 3, July 2023 - September 2023
Page No: 27-33
Research Publish Journals
Website: www.researchpublish.com
Published date: 06-September-2023
DOI: https://doi.org/10.5281/zenodo.8321571
Paper Download Link (Source)
https://www.researchpublish.com/upload/book/Study%20of%20Optical%20Speed%20Gates%20for%20Railway%20Transportation-06092023-5.pdfInternational Journal of Thesis Projects and Dissertations (IJTPD), Research Publish Journals, Website: www.researchpublish.co
Re(generate) Locally: Enhance the livability of deprived neighborhood by establishing better spatial network to accommodate local economy and everyday life
No full textThis project aims to take the Xipailou neighborhood- a deprived mixed-use neighborhood in the city center as the primary case for studying regeneration, try to formulate a more comprehensive regeneration approach that improves the livability. The process is different from the current top-down regeneration approach in China. Based on the fieldwork analysis and spatial analysis, this thesis highlights the importance of the relationship between neighborhood economy and livability. What's more, It's worth noting that the localized culture and lifestyle will have an impact on the way people use public space, in that case, the locally-appropriate spatial elements which are learned from the site can be used to help a new development fit into an existing area and reinforce a sense of place. The main research question is "How to improve the livability, through enhancing the public space network and adapting the local neighborhood economy in the deprived center-city mixed-use neighborhood?". By using design as a tool to understand the problem and potential of the site, a more comprehensive design-oriented strategy can be formulated.Architecture, Urbanism and Building Science
A WeChat-based e-commerce solution to sell Dutch brands in China
No full textOversea shopping is becoming increasingly popular among Chinese consumers. Nextport- China is a China-focused digital marketing agency in Amsterdam. The company is help- ing some Dutch brands to market in China. It wants to explore the possibility of selling Dutch products to Chinese consumers online.Strategic Product Desig
Hierarchical Model Predictive Control for on-Line High-Speed Railway Delay Management and Train Control in a Dynamic Operations Environment
No full textIn practice, the operation of high-speed trains is often affected by adverse weather conditions or equipment failures, which result in delays and even cancellations of train services. In this article, a novel two-layer hierarchical model predictive control (MPC) model is proposed for on-line high-speed railway delay management and train control for minimizing train delays and cancellations. The upper layer manages the global objectives of the train operation, that is, minimizing the total train delays and providing guidance for the speed control in the lower layer. The objectives of the lower layer are to satisfy the running time requirements given by the upper layer and to save energy at the same time. The optimization problems in both levels of the hierarchical MPC framework are formulated as small-scale mixed integer linear programming problems, which can be solved efficiently by existing solvers. Particularly, the train control problem is solved in a distributed way for each train. Simulation analysis based on the real-life data of the Beijing-Shanghai high-speed railway shows that the proposed hierarchical MPC framework can meet the real-time requirements and reduce train delays effectively when compared with widely accepted strategies, for example, first-scheduled-first-serve and first-come-first-serve. Moreover, the proposed hierarchical MPC framework also provides good robustness performance for different disturbance scenarios.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Team Bart De Schutte
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Advanced Dynamic Music: Composing Algorithmic Music in Video Games as an Improvisatory Device for Players
No full textVideo games as interactive media provide a natural venue for algorithmic music as the soundtracks which are dynamic, adaptive, procedural, interactive, modular, and generative. This dissertation explores the composition of algorithmic game music as a device for transforming gameplay into musical improvisation, which I call Advanced Dynamic Music (ADM). The ADM system combines various compositional techniques and procedures with a real time algorithmic strategy that links types of music and game parameters to generate or “improvise” game music interacting with the actions of players. This paper first gives a review of existing theoretical and musical literature on game music. Based on this literature review, I explore the compositional approaches in two creative game music projects: Do or Die: A Roll Playing Adventure and Mastery.Through my experience working on the two projects, I propose eight defining properties of ADM: variability, user-interaction, modularity, game-music association, multidimensionality, multiplicity, staticity, and coherency. ADM is the very first systematic and specific definition of a type of highly dynamic game music, which derived and developed from my experience in the two creative projects as the composer, game-music interaction designer, and music-game programmer and integrator. ADM can be used as an analytical methodology or taxonomy for game music scholars, as well as a compositional framework and solution for game composers in the future
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