1. A diaphragm of an electric sound converter, comprising:
a diaphragm film having a center dome,
a reinforcing film made of a same material as that of the diaphragm film and having a same shape as that of the center dome, and
a hot-melt adhesive having same nature as that of the diaphragm film and interposed between the diaphragm film and the reinforcing film to fix the diaphragm film and the reinforcing film,
wherein the reinforcing film includes a concave surface side where the adhesive is applied having a groove formed in a polygonal reticulate pattern, and a convex surface side, at an opposite side of the concave surfaces side, having a convex rib corresponding to the groove, and
the groove is filled with the adhesive and cured so that the adhesive interposed between the diaphragm film and the reinforcing film in the convex rib has a thickness greater than other portions.
2. The diaphragm of an electric sound converter according to claim 1, wherein the the polygonal reticulate pattern is a hexagonal pattern, and the groove and the convex rib corresponding to the groove are each formed in a honeycomb pattern.
3. A method of manufacturing a diaphragm of an electric sound converter having a center dome, comprising:
preparing a reinforcing film made of a same material as that of the center dome with a first die having a first pressed surface to thereby form the reinforcing film with a same shape as that of the center dome;
applying a hot-melt adhesive, which is capable of being diluted with an organic solvent and is of same nature as that of the center dome, to one of formed surfaces of the reinforcing film;
punching the reinforcing film;
placing the punched reinforcing film on top of a second die having a second pressed surface formed with a groove in a polygonal reticulate pattern and having a same shape as that of the first pressed surface;
covering the reinforcing film from above with a diaphragm film;
adhering the reinforcing film to the diaphragm film with the adhesive; and
forming a film groove in the polygonal reticulate pattern on a concave surface side where the reinforcing film is applied with the adhesive, and a convex rib on a convex surface side, opposite to the concave surface side, corresponding to the groove,
wherein the forming of the film groove further includes filling the film groove with the adhesive so that the adhesive interposed between the diaphragm film and the reinforcing film in the convex rib has a thickness greater than other portions.
4. The method of manufacturing a diaphragm according to claim 3, wherein the diaphragm film is formed to have the center dome and sub-domes surrounding the center dome.
5. The method of manufacturing a diaphragm according to claim 4, wherein the reinforcing film is adhered onto the diaphragm film with heat and pressure so that the adhesive is evenly spread between the reinforcing film and the diaphragm film and flows into the film groove.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method of operating a computer system to estimate the ages of trees shown in remotely sensed images, comprising:
receiving a number of dated, remotely sensed images of an area of interest that include vegetation index (V.I.) values computed for a number of pixels;
creating a composite image that stores the V.I. values computed for the pixel locations;
analyzing the V.I. values stored in the composite image for the pixel locations for a V.I. value that correlates with a known age of a tree; and
estimating the ages of the trees that correspond to the pixel locations based on the date of the remotely sensed image from which the V.I. value that correlates with the known age of a free was computed.
2. The method of claim 1, further comprising:
identifying pixel locations in the composite image having a V.I. value less than a threshold value as being non-vegetation areas.
3. The method of claim 1, wherein the computer system analyzes the V.I. values by:
searching the V.I. values stored for a pixel in the composite image for a V.I. value that corresponds to a V.I. value associated with a free in a first year of growth.
4. A computer system configured to estimate the ages of trees shown in a remotely sensed image, comprising:
a memory for storing a number of program instructions;
a processor configured to execute the instructions, in order to:
receive a number of dated, remotely sensed images of an area of interest that have spectral data from which a vegetation Index (V.I.) can be computed;
standardize the number of dated, remotely sensed images;
computing vegetation index (V.I.) values for the same pixel location in the number of dated, remotely sensed images;
create a composite Image that stores the V.I. values computed from the number of dated, remotely sensed images for each pixel location;
analyze the V.I. values in the composite image for a value that correlates with a known age of a tree; and
estimate the ages of the trees corresponding to a pixel location based on the date of the Image from which the V.I. value that correlates with the known age of a free was computed.
5. A non-transitory computer readable media, including instructions that are executable by a programmed processor to perform a method of estimating the ages of trees shown in a remotely sensed image by:
receiving a number of dated, remotely sensed images of an area of interest that include computed vegetation index (V.I.) values for pixels in the images;
creating a composite image that stores the V.I. values computed from the number of dated, remotely sensed images;
analyzing the V.I. values for a pixel in the composite image for a value that correlates with a known age of a tree; and
estimating the ages of the trees that correspond to a pixel location based on the date of the image from which the V.I. value that correlates with the known age of tree was computed.
6. A computer system configured to estimate the ages of trees shown in a remotely sensed image, comprising:
a memory for storing a number of program instructions;
a processor configured to execute the instructions, in order to:
receive a number of dated, remotely sensed images of an area of interest for which vegetation index (V.I.) values have been computed at a number of pixel locations;
create a composite image that stores the V.I. values computed from the number of dated, remotely sensed images;
analyze the V.I. values for a pixel in the composite image for a value that correlates with a known age of a tree; and
estimate the ages of the trees corresponding to the pixel location based on the date of the image from which the V.I. value that correlates with the known age of a tree was computed.