Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: evolution process

Sortuj według:

Ogranicz wyniki do:

Scene analysis of landslide geoscience and characterization of scene evolution

Zhang Yongguo, Zhang Jin, Wang Qingya

Acta Geophysica

2023

Vol. 71, no. 3

1539--1564

The premise of ecological protection and sustainable development in coal mining areas is to find the law of surface damage, damage speed and damage mechanism, and then put forward preventive measures in a targeted manner. Taking the landslide in the coal mining mountain area of Shanxi Province as an example, this paper comprehensively integrates the disaster-pregnant environment and disaster information of the landslide, and constructs a multi-level model of the scene through the analysis of the landslide geology scene. The object features characterize the evolution process of landslides in terms of stratigraphic structure changes, surface changes, texture changes, shape characteristics, spectral characteristics, color characteristics, etc., the typical landslide types in Shanxi coal mining areas are verified by examples. The comprehensive consideration of geology, geographical environment, ecological environment, disaster environment and the damage of landslides to other important ground features, with the advent of the era of big data, various data obtained from air, space and ground monitoring can be applied to research. Through the cognition of landslide spatial scenes, it is helpful to understand the influence mechanism of external events on landslide activities, so as to better predict the spatial and temporal characteristics of landslide activities.

On uniform N-stability for discrete systems

Rolewicz S.

Annales Societatis Mathematicae Polonae. Seria 1: Commentationes Mathematicae

2004

Vol. 44, nr spec.

203-213

Let X be a Banach space. Let {An} be a sequence of linear bounded operators acting in X. Let N(a, u) a > 0, u > 0 be a nonnegative function of two variables. Suppose that for all a N(a,u) is a continuous and non-decreasing with respect to u function such that N(a,0) = 0 only for u = 0. Let {an} be divergent series of nonnegative numbers. If for each x e X there is a(x) > such that...[formula]