Ageing can generally be described as the process of growing old and is an intricate
part of the life cycle. Basically it is a multi-dimensional process and affects almost every
aspect of human life. Introduction to the study of human ageing have typically emphasized
changes in demography focusing on the ‘ageing of population’- a trend, which has
characterized industrial societies throughout the twentieth century but in recent decades, has
become a worldwide phenomenon.
Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài:"Reduction of wood hygroscopicity and associated dimensional response by repeated humidity cycles"
Relevant aesthetic considerations in this study relates to three-dimensional forms with a physical
representation in space (artefact). Baumgarten’s considerations are a combination of guidelines to
advanced aesthetics and general rules about what is more aesthetic than something else. As pointed out
by the design researcher Peter Dorm, aesthetic considerations are developed through the creative
Without much exaggeration, it can be said that only one important topological
concept came to light before Poincar¶e. This was the Euler characteristic of
surfaces, whose name stems from the paper of Euler (1752) on what we now call
the Euler polyhedron formula. When writing in English, one usually expresses
the formula as
Reduction of the singularities of codimension one singular foliations in dimension three
By Felipe Cano Contents 0. Introduction 1. Blowing-up singular foliations 1.1. Adapted singular foliations 1.2. Permissible centers 1.3. Vertical invariants 1.4. First properties of presimple singularities 2. Global strategy 2.1. Reduction to presimple singularities. Statement 2.2. Good points. Bad points. Equi-reduction 2.3. Finiteness of bad points 2.4. The inﬂuency locus 2.5. The local control theorem 2.6. Destroying cycles 2.7. Global criteria of blowing-up 3. Local control 3.1.
Freeform fabrication technology does not
require pre-formed mandrels or tooling;
instead, it builds physical objects directly
from computer graphical data. This type of
technology is also known as layer
manufacturing, since it constructs the three-
dimensional object layer by layer (Jacobs,
1992; Beaman et al., 1997). The technology
has proved that it can help to rapidly provide
feedback on design concepts, discover
inconsistencies in the design, modify the
design, and eliminate inconsistency before
fabricating the design.