box stacker

Hi, we are looking for someone with the right experience to design a lens according to specifications that we have. The lens needs to meet certain goals so we would like you to be able to make simulations that can calculate reaching those goals. The lenses are intended for mechanical use in a solar system. Zemax can be used, or a similar software that you recommend. Please state your price as we are getting a few offers, and how soon can you work on it. Looking for someone easy to communicate with, that can go with us for the long run. The specs of the lens will be sent in a private message.

Complete Pressure vessel calculations required in accordance with ASME code Section VIII Div I.

i need to simulate disc and cylindre to calculate the temperature

I am modeling embeded structure in the soil under earthquake loading. I have done stage analysis before dynamic (free field, excavation and construction) and results of each stage its been initial condition for the next one and then I have turned the study from stationary to time dependent to analyze the earthquake load with initial condition of the last stationary stage. The soil its been modeled by SANICLAY-B which is the most appropriate model when dealing with sensitive clays. The earthquake is defined as a sine load (it must be like this cause I need the q (cyclic deviatoric stress) in SANICLAY-B formulations), I am having the covergence problem for dynamic analysis, this is boundary condition: soil is fully saturated, fixed constraint at the bottom and equal displacement at the lateral boundaries, ensures that boundary nodes at the same elevation are tied, allowing them to experience identical accelerations throughout the analysis

The challenge is to design a new and improved Step Stool than those in the market place. Pls note: Step Stools are different from Step Ladders. Step Stools usually have 2-Steps or 3-Steps, are lightweight, slim in profile, used inside the home, are usually kept in the kitchen or closet. Ladders often have more than 3 steps, are more heavy, used for big projects, and are stored in the garage or outdoor shed. Attached is a PDF showing some of step stools now selling in the market. The best selling ones are on the first page, and they are 1) lower cost, 2) basic & simple in design and construction (that's how they are low cost), 3) but they usually have boring white frame with black steps. The better designed step stools on page-2 are 1) stylish looking, 2) some are very slim (take up less storage space), 3) some have handles that extend to help balance the user to prevent falls, while others 4) include cut outs on the step to help user "lean" to keep balance, and still others 5) include trays to hold tools. A key concern with Step Stools is SAFETY. Many injuries occur due to poor quality/design/engineer or user lose their balance when over reaching. The winning design will help prevent falls and injuries.