نتایج جستجو برای: speed diagram

تعداد نتایج: 266714  

2014
Guy Alexander Cooper Flurin Hänseler Marija Nikolić Michel Bierlaire

This work is an extension of PedCTM, an aggregate and transient cell transmission model for multidirectional pedestrian flows in which pedestrian characteristics are assumed to be homogeneous across the population considered. Critically, one fundamental diagram relating pedestrian speed and flow to local pedestrian density is employed across the entire population. This work extends the model to...

2003
Edward Lank

The design of new diagram recognition systems remains a challenging problem. Ideally, recognition systems should accept real-world input, perform robustly, fail gracefully, and be implemented in a timely manner. In reality, the intricacy involved in implementing recognition systems for diagram notations makes this a challenging open problem. One solution to these challenges is the design of mid...

2011
Licheng Wang Tamon Ueda

In service, cracks or microcracks are usually present in concrete as a result of several mechanisms, for example the drying shrinkage, thermal gradients, freezing-thawing cycles, alkali-aggregate reaction and external loading. It has been realized that cracking can significantly accelerate the ingress of chlorides into concrete since it provides preferential flow channels and allow more chlorid...

2016
Taian Fan

This research will investigate the problem on the propagation of electromagnetic wave through a specific nanomaterial. The nanomaterial analyzed is a material consisting of a field of Pt nanorods. This field of Pt nanorods are deposited on a substrate which consists of a RuO2 nano structure. When the nanorod is exposed to an electron beam emitted by a TEM (Transmission electron microscopy). A w...

2016
Fang Shen Yuming Wang Chenglong Shen Xueshang Feng

It has been proved from the observations and numerical simulations that the collision between solar coronal mass ejections (CMEs), the largest plasmoids in the heliosphere, could be super-elastic. This finding suggests that the CMEs' magnetic energy and thermal energy could be converted into kinetic energy through a more efficient way. However CME collisions are not always super-elastic, which ...

Journal: :bulletin of emergency and trauma 0
homayoun sadeghi bazargani road traffic injury research center, department of statistics and epidemiology, faculty of health, tabriz university of medical sciences, tabriz, iran-who collaborating center on safe community promotion, stockholm, sweden. mohammad saadati 2- phd candidate, road traffic injury research center, iranian center of excellence in health management, department of health service management, school of health services management and medical informatics, tabriz university of medical sciences, tabriz, iran.

objective: to systematically identify the various methods of speed management and their effects. methods: a systematic search was performed in science direct, ovid medline, scopus, pubmed and proquest databases from april to june 2015. hand searching and reference of selected articles were used to improve article identification. articles published after 1990 which had reported on efficacy/effec...

Journal: :international journal of civil engineering 0
r. a. memon associte professor, department of civil engineering, mehran uet, jamshoro g. b. khaskheli professor, department of civil engineering, mehran uet, jamshoro, pakistan m. h. dahani project director, nha, pakistan

present study is an extension of earlier work carried out on two-lane two way roads in the two provinces of pakistan i.e. n-25, n-55 and n-5 regarding the measure of operating speed and development of operating speed prediction models. curved sections of two-lane rural highways are the main location of run-off road accidents. in addition to that the road alignment having combination of geometri...

Journal: :international journal of information science and management 0
j. mehrad ph.d., dept. of library and information sciences,shiraz university, shiraz h.r. mokhtari aski institute of technical & vocational higher, education (itvhe), tehran

this research discusses the process of designing a conceptual model for a new information system, i.e. electronic document management system. the new system is designed for an educational institute (itvhe) whose managers are the research population. the research methodology is based on structured analysis and design methodology (ssadm). in the end, the new system proposed using a data flow diag...

Journal: :Machines 2022

The variable hyperbolic circular arc tooth trace (VH-CATT) cylindrical gear is a new suitable for heavy loads and high speed. special structure of the provides excellent mechanical properties but also increases processing difficulty. machine tool VH-CATT prerequisite mass production, machining accuracy remains to be improved. Therefore, this paper proposes Kriging model based on glowworm swarm ...

Journal: Physical Treatments 2016

Purpose: Low back pain is one of the most common musculoskeletal disorders, and lifting is one of its risk factors. The activities of lumbar muscles as the main muscles involved in lifting are important with regard to identification of the allowable limits and the injury mechanisms as well as the motor control aspects. This study aimed to investigate the effects of the lifting speed on the lumb...

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