PART I THE SITUATION AND RECENT DI NTS IN THE FOREST SECTOR Recent developments his chapter discusses some of the main issues effectiveness of forest management(see and emerging trends in the forest sector, Management, conservation and sustainable focusing largely on the last two to three years. development of forest resources, p. 6). A pilot As it is impossible to cover all nev assessment of the health of the worlds developments, notable events and significant

An accelerometer is a device used to measure linear acceleration without an external reference. The main idea has already been illustrated in the previous lecture with the example of the boy in the elevator. Clearly, if we know the weight of the boy when the acceleration is zero, we can determine from the reading on the scale the value of the acceleration. In summary, the acceleration will produce an inertial force on a test mass, and this force can be nulled and measured with precision. Below we have sketch of a very simple one axis accelerometer

In this unit, we'll learn something related to American culture. With the development of science and technology especially modern ways of communication, people in different countries in the world are getting to know more about each other. America is a country with great influence. What do you know about the country? And do you know something about American family? Actually

2.1 Plane stress and plane strain 平面应力问题与平面应变问题 2.2 Differential equations of equilibrium 平衡微分方程 2.3 Stress at a point. Principal stresses 一点的应力，主应力 2.4 Geometrical equations. Rigid-body displacements 一几何方程，刚体位移 Shear stress trajectories in a cantilever beam 悬臂梁的剪应力轨迹线 2.6 Physical equations. 物理方程 2.7 Boundary conditions 边界条件 2.8 Saint-venant`s principle-1 圣维南原理 2.9 solution of plane problem in terms of displacements 按位移求解平面问题 2.10 solution of plane problem in terms of stresses 按应力求解 2.11 Case of constant body forces 常体力情况 2.12 Airy`s stress function. Inverse method and semi-inverse method 艾瑞应力函数，逆解法，半 逆解法

Ozone in the atmosphere STRATOSPHERE TROPOSPHERE In this region, ozone protects In this region, ozone can us from the sun's harmful damage lung tissue and uitraviolet radiation

Air quality and particles Epidemiological(流行病学) evidence associates atmospheric particles with diseases and mortality Particles penetrate the lungs, blocking and irritating aIr passages. Particles themselves could exert toxic effects. ( toxic substances present in the particles [polycyclic Aromatic Hydrocarbons are examples of toxic substances in aerosols.]

Band Three Unit I Section A The Expensive Fantasy of lord williams Warm-up questions What do you know about crime? What type of crime does the main character commit in section A? We encounter crime everywhere-on TV, in our neighborhoods, in our homes, with

Preview During World War II, life in England was filled with hardships and sorrow because Hitler's Nazi air force was booming London repeatedly. The people of the country had to pull together and help one another in countless ways so that normal daily life could continue as much as possible England's Royal Air Force was heroic in the way the few pilots continued to meet and fight against the tremendous number of Nazi airplanes The citizens on the ground

equipment, and to Dr. G. E. R. Deacon and the a residue on each chain every 3.4 A. in the z-direc- captain and officers of R. R.S. Discovery II for their tion. We have assumed an angle of 36between part in making the observations. at residues in the same chain, so th he 1Young, F. B., Gerrard, H., and Jevons,., Phil Mag., 40, 149 structu on each chain, that

Teaching Objectives 1. know the background of \Middle Eastern Bazaar?\ 2. grasp the main idea and the theme of this essay 3. master the language used in a special way in the essay 4. appreciate the description writing skills in advanced level 5. conduct a series of discussing, analyzing, presenting activities related to the theme of this essay