Train Scholarship (Genaro Rivera)

  Genaro Rivera Week three Circuit Board Etching (Last week) For this week, I decided to not focus on MATLAB; Instead, I will talk about how my group’s circuit board for a payload weather balloon. The patterns came from a software program that was printed out on paper which we imprinted on the board in the chemistry lab. We performed a chemical process called etching. Firstly, we placed a thin glass between the paper and copper board (facing the right way), turned off the lights and shined the board with a light for 8 minutes, removed the glass, and took the copper board to a tub of tap water. Here, we rock the tub, take out the board, and let it dry on a paper towel. Afterwards, we pick it up and dip into ferric chloride. Although the ferric chloride is premade, we learned that ferric chloride occurs when you mix hydrochloric acid, water, and any type of iron. After the reaction (takes one day), you add hydrogen peroxide and get ferric chloride which can etch copper. Once ...

  Genaro Rivera September 19, 2022 Train Scholarship Personal Research MATLAB coding Script 1: Plotting Two Lines on One Graph For my first script this week I graphed the momentum and kinetic energy of a car as a function of time. First, I gave a descriptive title and description. Additionally, I labeled the section headers. Secondly, I defined the parameters. The mass (m = 907 kg) and the minimum and maximum velocities are givens. Thirdly, I performed computations. I computed the x-values as a row vector starting from the minimum velocity and ending with the maximum velocity in increments of one. Importance notice goes to the fact that I labeled the minimum velocity (minimum x valued) and maximum velocity (maximum x values) as variables. Since I set each equal to 0 and 8, MATLAB recognizes the word as numerical values and computes them as x = [0:8]. For kinetic energy, I used the physics formula E_k = (1/2) mv. ^2. The reason for a ‘.’ after the v and before the exponent sym...

  Genaro Rivera September 14, 2022 Train Scholarship Personal Research MATLAB progress My first script this week involves the distance formula computing two points’ distance based on user inputs. Firstly, I grasped using comments properly; comments are critical for the programmer. I simultaneously put section headers (two percent symbols), sub-comments (one percent symbol), and worked. Including comments helps with organization and continuation. Secondly, I learned the input function. The input function includes texts the user reads and acts on. The input function must include single quotes to distinguish from variables and text. When running, the script shows the user the text, and the user acts accordingly. For example, here, the text prompts the user to input the coordinates of their desired points. Afterwards, the program computes the distance. Thirdly, I improved my analytic skills. Inability to use sqrt[(x2-x1)^2+(y2-y1)^2] to compute the distance produced analysis. Since...