3D printing of weft knitted textile based structures by selective laser sintering of nylon powder

3D printing is a form of additive manufacturing whereby the building up of layers of material creates objects. The selective laser sintering process (SLS) uses a laser beam to sinter powdered material to create objects. This paper builds upon previous research into 3D printed textile based material exploring the use of SLS using nylon powder to create flexible weft knitted structures. The results show the potential to print flexible textile based structures that exhibit the properties of traditional knitted textile structures along with the mechanical properties of the material used, whilst describing the challenges regarding fineness of printing resolution. The conclusion highlights the potential future development and application of such pieces

Substance Abuse in Immigrant Latino Youth in Appalachia: Preliminary Findings

One-third of the US Latino population is under the age of 18. Studies show a significant percentage of Latinos aged 12 or older use illegal substances. Acculturation, family relationships, and depression are contributing factors to this abuse. Previous studies concentrated on populations along the US-Mexico border. This study examined the relationship between illegal substance abuse, acculturation, family relationships, and depression in Latino adolescents aged 12 to 19 in Northeast Tennessee. The Pan American Youth Inventory was administered to 66 Latino youth. There was a significant relationship between substance abuse and depression, as well as substance abuse and lifetime suicide ideations

Electric ship research at the Naval Postgraduate School

This paper gives an overview of current research at the Naval Postgraduate School on electric ships. Various academic departments and groups are studying directed energy weapons, electromagnetic railguns and aircraft launchers, power systems, infrared and acoustic signature reduction, and thermal management for electric ships. Researchers in each of these areas describe their recent and ongoing work.Office of Naval Researc