INTRODUCTION TO CHEMICAL TRANSPORT IN THE ENVIRONMENT potx
... convenient to imagine a light being shined along the axis, which casts a shadow of the vector onto a plane normal to the light. The ϕ angle measures from the reference axis to the shadow in this ... solutions of the diffusion equation as they apply to highly sorptive compounds. There are many processes involved in determining the chemical thermodynamics (equilibr...
Ngày tải lên: 28/06/2014, 22:20
... defects by altering the development of tissues in the fetus in the mother’s womb. Other chemicals that harm the fetus are called fetotoxins. If a chemical causes health problems in the pregnant ... factor in determining whether a hazard exists. The hazard of a chemical is the practical likelihood that the chemical will cause harm. A chemical is determined...
Ngày tải lên: 14/02/2014, 03:20
... are involved in the observed deterioration and decline of forests in Europe and North America. 60-65 The aerosols in the atmo- spheric environment of the forest are mainly imported into the ... and the movement of particles in several force fields, and considers the single particle to be chemically inert, aerosol chemistry involves the physicochemical and chemical...
Ngày tải lên: 18/06/2014, 19:20
AEROSOL CHEMICAL PROCESSES IN THE ENVIRONMENT - CHAPTER 2 docx
... between the cluster model and the classical theory is that in the former, the cluster size is allowed to affect the relative fractions of the molecules at the surface and in the interior, and thereby ... between the embryo and the surrounding substrate. The embryo formation occurs via three successive stages. In the beginning, the surface area of the interf...
Ngày tải lên: 18/06/2014, 19:20
AEROSOL CHEMICAL PROCESSES IN THE ENVIRONMENT - CHAPTER 3 pot
... one ( t 1 ) is the time interval during which the steady-state field of the vapor is established in the vicinity of the drop. The time interval t 2 describes the relaxation of salt ... decelerates the growth due to the decrease in salt concentration near the drop surface. The smaller the salt diffusivity, the greater the salt concentration gradie...
Ngày tải lên: 18/06/2014, 19:20
AEROSOL CHEMICAL PROCESSES IN THE ENVIRONMENT - CHAPTER 4 pdf
... particle is injected into the cell and captured in dry N 2 at the center of the cell by properly manipulating the ac and dc voltages applied to the electrodes. The system is closed and evacuated to ... barrier to transition to the more stable phase and k the Boltzmann constant. K, an undetermined kinetic factor, is either estimated from the binary collision fr...
Ngày tải lên: 18/06/2014, 19:20
AEROSOL CHEMICAL PROCESSES IN THE ENVIRONMENT - CHAPTER 5 pot
... In the semi-acid region of Colorado, the pH is constant at 7.30 in the first part of a storm and drops to 7.00 in the second part. In Italy, the pH oscillated between 6.4 and 5.6, indicating the ... marine origins, the freezing temperatures were –16°C, –11°C, and –8°C, respectively; these temperatures are the maximum and they belong to the first drops frozen during...
Ngày tải lên: 18/06/2014, 19:20
AEROSOL CHEMICAL PROCESSES IN THE ENVIRONMENT - CHAPTER 6 docx
... way to initialize charge is to set all ion molalities to zero. Initial mass in the system can be distributed arbitrarily, subject to the charge balance constraint. If the total nitrate in the ... the water-activity polynomial beginning only in the fourth term. In Equation 6.79, temperature affected the solute activity beginning with the second term of the pol...
Ngày tải lên: 18/06/2014, 19:20
AEROSOL CHEMICAL PROCESSES IN THE ENVIRONMENT - CHAPTER 7 pptx
... LAMMA spectra are presented in Figures 7.1 to 7.5. General observations of these spectra lead to to the following remarks: • The constitutive elements of the coatings of the rod, such as Na, K, Ca, ... determination of elements in various samples — either conducting or isolating ones. An interesting feature of this technique is its ability to charac- terize the molecular c...
Ngày tải lên: 18/06/2014, 19:20
AEROSOL CHEMICAL PROCESSES IN THE ENVIRONMENT - CHAPTER 8 pdf
... between intensified array and non-intensified array detectors. The intensifier resembles a photomultiplier and therefore has intrinsic dark counts. The addition of dark counts due to the intensifier ... effects of the imaginary part on the scattering function. Besides the effects of the imaginary part on the Mie scattering function, the variation in the droplet size can al...
Ngày tải lên: 18/06/2014, 19:20