Smart security system for home (IOT)

This research project is about security home system with IoT. The project will uses Arduino UNO microcontroller as a core component integrated all the sensors, process the sensors' signals and transmit the signals to the WiFi module. At the receiver, there will be one platform or Apps designed to display the signals. Typical signals are the alarm activation ON and OFF signal. Two sensors will be used. One is step switch sensor and second one is ultrasonic sensor. The step switch sensor is used to detect an intruder break in the house through door or window whereas the ultrasonic sensor is used to detect to a mobile intruder around the building campus. These sensors' signals are digital. They are first process inside the microcontroller. By uisng ESP8266 WiFi module, the sensors' signals will be send over an internet network. At the end of the project, a small prototype security system based on IoT will be developed. Keywords: IoT, security, Internet, WiFi, Apps and Arduino microcontroller

Documenting Cordage Impressions on Archaeological Ceramics: A Methodological Comparison of Casting and Digital Representation

The analysis of cordage and fabrics from the impressions and markings on pottery has traditionally been conducted by casting the pottery sherds with a plastic or liquid media to make a positive. This positive is then analyzed by measuring attributes under a low-power microscope with calipers. Original Sculpey® is one casting media that has been popular because of its price, accessibility, detail of cast, and permanency of the casts after curing. However, it has been found to impart an organic chemical signature on the sherds, which would bias residue analyses. Further, the plasticizer in Original Sculpey® can soften certain plastics, notably Paraloid B-72, which is often used on pottery as a consolidant. 3D scanning, then, theoretically can be used to create digital representations of the impressions and markings in pottery, while avoiding damage to the sherds and other conservation concerns. The NextEngine 3D laser scanner was tested in the analysis of seven sherds with varying qualities of impressions and markings. Results revealed that the method one uses depends not only on the quality desired and the conservation of the sherd, but also cost, time, and expertise available to the researcher. While the NextEngine itself may not be able to achieve the level of detail needed to match casting methods, the technology can be nonetheless useful for impressed sherd documentation in the near future

Special investigation of the Iowa City Area Development Group (ICAD) for the period December 12, 2003 through March 14, 2017

Special investigation of the Iowa City Area Development Group (ICAD) for the period December 12, 2003 through March 14, 201