scholarly journals Saving Regret: Self-assessed Life-cycle Saving Behavior in the U.S. and Singapore

2020 ◽  
Author(s):  
Axel Börsch-Supan ◽  
Michael Hurd ◽  
Susann Rohwedder
Keyword(s):  
Life Cycle ◽  
Saving Behavior ◽  
Life Cycle Saving ◽  
The U.S

Supply Chain Hardware Integrity for Electronics Defense (SHIELD) Using Small “Dielets”

2017 ◽  
Vol 2017 (1) ◽  
pp. 000699-000704
Author(s):  
Len Chorosinski ◽  
Venky Sundaram ◽  
Klaus Wolter ◽  
Richard Calatayud ◽  
Parrish Ralston ◽  
...  
Keyword(s):  
Supply Chain ◽  
Life Cycle ◽  
Department Of Defense ◽  
Near Field ◽  
General Overview ◽  
Electronic Parts ◽  
Cryptographic Techniques ◽  
Secure Server ◽  
The U.S ◽  
Host Component

Abstract Under the DARPA/MTO SHIELD program, a Northrop Grumman led team is developing a supply chain traceability and authentication method to protect against the growing threat of counterfeit electronic parts. The foundation of our SHIELD solution is an advanced 100μm × 100μm × 20μm near-field RFID “dielet” fabricated on 14nm CMOS. This dielet will be embedded in a host component's packaging and provides a hardware root-of-trust through the integration of advanced key protection and cryptographic techniques. Throughout the life-cycle of the host component, the authenticity can be verified using an RF probe to energize and communicate with the dielet, performing a cryptographic challenge and providing a response to a centralized secure server and SHIELD authenticity database. This paper provides a general overview of the dielet design, packaging, and host component insertion. This research was developed with funding from the DARPA. The views, opinions and/or findings expressed are those of the author and should not be interpreted as representing the official views or policies of the Department of Defense or the U.S. Government.

Deciphering the true life cycle environmental impacts and costs of the mega-scale shale gas-to-olefins projects in the United States

2016 ◽  
Vol 9 (3) ◽  
pp. 820-840 ◽  
Author(s):  
Chang He ◽  
Fengqi You
Keyword(s):  
United States ◽  
Life Cycle ◽  
Environmental Impacts ◽  
Shale Gas ◽  
The United States ◽  
Production Costs ◽  
Environmental Models ◽  
The U.S

Using detailed techno-economic-environmental models, we investigate the environmental impacts and production costs of the mega-scale shale gas-to-olefins projects in the U.S.

Energy Use and Greenhouse Gas Emissions in the Life Cycle of CdTe Photovoltaics

2005 ◽  
Vol 895 ◽  
Author(s):  
Vasilis Fthenakis ◽  
Hyung Chul Kim
Keyword(s):  
Life Cycle ◽  
Energy Use ◽  
Ghg Emissions ◽  
Ground Level ◽  
Solar Irradiation ◽  
Production Plant ◽  
Energy Payback ◽  
The Impact ◽  
The U.S ◽  
Total Life

AbstractThe life cycle of the thin film CdTe PV modules in the U.S. have been investigated based on materials and energy inventories for a commercial 25 MW/yr production plant. The energy payback times (EPBT) of these modules are 0.75 years and the GHG emissions are 18 gCO2-eq/kWh for average U.S. solar irradiation conditions. Adding the impact of an optimized ground-level balance of system (BOS), result in a total EPBT of 1.2 years and total life-cycle GHG emissions of 24 gCO2-eq/kWh.

Techno-Economic Optimal Design of Solid Oxide Fuel Cell Systems for Micro-Combined Heat and Power Applications in the U.S.

2010 ◽  
Vol 7 (3) ◽  
Author(s):  
Robert J. Braun
Keyword(s):  
Life Cycle ◽  
Fuel Cell ◽  
Life Cycle Cost ◽  
Combined Heat And Power ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Chp System ◽  
System Configurations ◽  
System Designs ◽  
The U.S

A techno-economic optimization study investigating optimal design and operating strategies of solid oxide fuel cell (SOFC) micro-combined heat and power (CHP) systems for application in U.S. residential dwellings is carried out through modeling and simulation of various anode-supported planar SOFC-based system configurations. Five different SOFC system designs operating from either methane or hydrogen fuels are evaluated in terms of their energetic and economic performances and their overall suitability for meeting residential thermal-to-electric ratios. Life-cycle cost models are developed and employed to generate optimization objective functions, which are utilized to explore the sensitivity of the life-cycle costs to various system designs and economic parameters and to select optimal system configurations and operating parameters for eventual application in single-family, detached residential homes in the U.S. The study compares the results against a baseline SOFC-CHP system that employs primarily external steam reforming of methane. The results of the study indicate that system configurations and operating parameter selections that enable minimum life-cycle cost while achieving maximum CHP-system efficiency are possible. Life-cycle cost reductions of over 30% and CHP efficiency improvements of nearly 20% from the baseline system are detailed.

U.S. Navy Shipboard Fleet Evaluation of the Redundant Independent Mechanical Start System and Full Authority Digital Control

2000 ◽  
Author(s):  
Matthew G. Hoffman ◽  
Helen J. Kozuhowski ◽  
Leonard L. Overton
Keyword(s):  
Life Cycle ◽  
Digital Control ◽  
Production Cost ◽  
Cost Savings ◽  
System Configuration ◽  
Turbine Generator ◽  
Equipment Manufacturer ◽  
Design Production ◽  
One Year ◽  
The U.S

U.S. Navy and Rolls -Royce Allison have conducted a fleet evaluation of the Redundant Independent Mechanical Start System (RIMSS) and Full Authority Digital Control (FADC) installed aboard USS Porter (DDG 78), No. 2 Ship Service Gas Turbine Generator (SSGTG). The fleet evaluation has resulted in design, production and operational improvements, which would not have been quickly realized under normal implementation programs. A critical objective of the fleet evaluation demonstrated the system configuration and operational compatibility with existing shipboard environments over the course of a one-year period. This process evaluated the usability of the RIMSS and FADC interface by ships force and the performance of functions related to operation and troubleshooting. It also provided feedback from Navy users for improvements. This paper describes RIMSS and FADC fleet evaluation elements and the benefits derived from performing a fleet evaluation. Fleet evaluation findings aboard USS Porter have resulted in system improvements that were achieved prior to production. Cost savings to the U.S. Navy and the original equipment manufacturer will be realized through out the life cycle of the ships.

Improving Operational Availability of Gas Turbine Generators Aboard U.S. Navy DDG-51 Class Ships by Combining the Capabilities of the Integrated Condition Assessment System (ICAS) and the Generator Set’s Full Authority Digital Controller (FADC)

2005 ◽  
Author(s):  
Dennis M. Russom ◽  
Russell A. Leinbach ◽  
Helen J. Kozuhowski ◽  
Dana D. Golden
Keyword(s):  
Life Cycle ◽  
Gas Turbine ◽  
Condition Assessment ◽  
Assessment System ◽  
Digital Controller ◽  
Life Cycle Costs ◽  
Turbine Generator ◽  
Turbine Generators ◽  
Generator Sets ◽  
The U.S

Operational availability of Gas Turbine Generator Sets (GTGs) aboard the U.S. Navy’s DDG 51 Class ships is being enhanced through the combined capabilities of the ship’s Integrated Condition Assessment System (ICAS) and the GTG’s Full Authority Digital Control (FADC). This paper describes the ICAS and FADC systems; their current capabilities and the vision of how those capabilities will evolve in order to improve equipment readiness and reduce life cycle costs.

scholarly journals Spatially and Temporally Explicit Life Cycle Environmental Impacts of Soybean Production in the U.S. Midwest

2020 ◽  
Vol 54 (8) ◽  
pp. 4758-4768
Author(s):  
Xiaobo Xue Romeiko ◽  
Eun Kyung Lee ◽  
Yetunde Sorunmu ◽  
Xuesong Zhang
Keyword(s):  
Life Cycle ◽  
Environmental Impacts ◽  
Soybean Production ◽  
The U.S
Sign in / Sign up

Export Citation Format

Share Document