نتایج جستجو برای: rock engineering systems res

تعداد نتایج: 1438452  

2015
Greg Crowe

This research examines the factors that influence how members of the US House of Representatives vote. Party affiliation of the legislator and constituency interests will be the two main independent variables. The district's constituency characteristics are represented by constituency ideology ('96 Presidential vote for Clinton), percent non-white, region, and the median household education. Th...

2010
Christopher H. Martin

Complex signals present 2 outstanding questions: why do they exist and how are they interpreted? Multiple signals can be beneficial for the increased diversity or redundancy of information they convey; however, it is not clear how receivers use this additional information. I investigated a lekking Malawi cichlid fish that builds polymorphic bowers; some males build their sand spawning craters o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی شاهرود - دانشکده معدن و ژئوفیزیک 1394

پیش بینی قابلیت تخریب توده سنگ یکی از ابزارهای مورد نیاز در طراحی و تخمین اندازه زیربرش برای رسیدن به تخریب پیوسته است.پیچیدگی سازوکارهای تخریب در معادن بزرگ مقیاس تخریب بلوکی سبب شده است که روش های معمول به طور کامل قادر به تحلیل و پیش بینی تخریب نباشند. یکی از عوامل را می توان به متعدد بودن پارامترهای کنترل کننده تخریب و از طرف دیگر اندرکنش موجود میان این پارامترها ربط داد. برای غلبه بر این م...

Journal: :Notes and records of the Royal Society of London 2010
Robert Bud

In the late 1970s politicians and civil servants were acutely aware of the chronic decline of the manufacturing sector as a source of employment in Britain. At a time of fear of mass unemployment, sources of new work were urgently sought. Biotechnology had been promoted by visionaries since the early twentieth century. With oil prices soaring, its potential to produce substitutes for petroleum ...

2016
Wei Gao Dongliang Chen Xu Wang

To compute the stability of underground engineering, a constitutive model of surrounding rock must be identified. Many constitutive models for rock mass have been proposed. In this model identification study, a generalized constitutive law for an elastic-plastic constitutive model is applied. Using the generalized constitutive law, the problem of model identification is transformed to a problem...

Journal: :Frontiers in Energy Research 2022

New features like high penetration level, low inertia, and weak damping are decreasing voltage support capacity in the power system as it sees large-scale renewable energy source (RES) integration continuously. The reasonable solution to this challenge is developing an additional active regulation function for converters (VSCs). This study proposes a droop-based control strategy VSCs RES-integr...

Journal: :AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 2018

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