Albuquerque, NM, United States
Albuquerque, NM, United States

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Kambour K.E.,Leidos | Kouhestani C.,TEAM Technologies Inc. | Nguyen D.D.,COSMIAC | Devine R.A.B.,Think Strategically
Journal of Vacuum Science and Technology B: Nanotechnology and Microelectronics | Year: 2016

The need for more reliable and radiation hard complementary metal-oxide-semiconductor compatible devices coupled with an ever increasing shrinkage of device dimensions has led naturally to interest in metal-oxide semiconductor field-effect transistors having nontraditional geometries. One such geometry is the gate-all-around transistor, which has been suggested to be less sensitive than its planar counterpart to the effect of charge build-up at the semiconductor-insulator interface such as that induced by irradiation. In order to explore the radiation hardness of such a structure, the effect of radiation on gate-all-around n-type metal-oxide-semiconductor devices was investigated by computing the effect of charging on the threshold voltage of the device. The radiation sensitivity in ideal structures is explored, and the greater radiation sensitivity found experimentally in some devices is explained. © 2016 American Vacuum Society.


Kouhestani C.,TEAM Technologies Inc. | Nguyen D.D.,COSMIAC | Kambour K.E.,Leidos | Devine R.A.B.,Think Strategically | And 3 more authors.
Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics | Year: 2015

The authors have examined ionizing radiation effects in the organic photovoltaic material poly(3-hexylthiophene):([6, 6]-phenyl C61 butyric acid methyl ester) for total accumulated doses up to 300 krad(SiO2). The authors find that the open circuit voltage varies with the accumulation of irradiation; however, the other parameters such as relaxation time, short circuit current, and charge carrier density remain to first order constant. This behavior is inconsistent with observations on preirradiation devices in which all depend directly on the open circuit voltage. © 2015 American Vacuum Society.


Kouhestani C.,TEAM Technologies Inc. | Nguyen D.D.,COSMIAC | Kambour K.E.,Leidos | Devine R.A.B.,Think Strategically | And 3 more authors.
Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics | Year: 2015

The authors have used transient photovoltage measurements to evaluate carrier relaxation times (τ) in P3HT:PCBM based photocells over a wide range of open circuit voltages. Satisfactory agreement is found with data obtained by low frequency impedance measurements. The authors find the differential capacitance measurements yield data consistent with the theoretical value expected based on Langevin recombination. The Langevin coefficient is three orders of magnitude smaller than the theoretical one. For the low light levels, the relaxation time variation is determined by the RC time constant behavior of the photodiode. © 2015 American Vacuum Society.


Miller A.K.,New Mexico Institute of Mining and Technology | Bode J.R.,VeriTran | Sachs R.,TEAM Technologies Inc. | Jensen K.,TEAM Technologies Inc.
ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011 | Year: 2011

Over the past decade numerous studies both conducted by and authorized by the US Department of Energy Office of Industrial Technology have identified significant energy savings potential by adjusting flow rates to meet process demands. As much as 40% energy savings have been achieved when variable flow pumping systems were implemented in some DOE demonstration projects. To date, only a small fraction of the identified companies in various industries which can benefit in energy savings resulting from adjustable pumping flow rates have installed the requisite capabilities. One reason for the slow rate of adoption of variable pumping is that there are few commercially available methods for adjusting pump rates. Electronic Variable Frequency Drives (VFDs) are the most commonly implemented method of varying pump speeds, usually resulting in reduced operating life of the electric drive motors and sometimes in significant costs of plant modifications. Veritran Inc. with the support of Team Technologies, Inc. is developing low-cost mechanical devices for varying electric motor speeds without the large initial investment associated with VFDs nor the other detracting features of the need to install larger electric motors and reduced motor life expectancy. Veritran's Infinitely Variable Transmissions (IVTs), such as SM-15IVT (www.veritraninc.com) are installed between the motor and the load, which allows for soft starts, and precise output set speeds, all under programmable microprocessor control. The amount of power demanded from the motor varies as the output speed of the transmission is changed or the load torque is changed. This paper will describe the engineering development that Veritran has been pursuing over the past decade of their novel IVTs, and will present some of the test data collected to date. Results will also be presented of systems analyses where IVTs are inserted into various industrial operations and significant energy savings result. Copyright © 2011 by ASME.


Reschke A.,TEAM Technologies Inc. | Noppenberger C.,Thiess John Holland
14th Australasian Tunnelling Conference 2011: Development of Underground Space, Proceedings | Year: 2011

The Thiess John Holland Group is undertaking the design and construction of Brisbane's Airport Link Project, the largest single investment in transportation infrastructure in Australian history. Twin Herrenknecht TBMs are being used to bore parallel road tunnels from Kalinga Part in Toombul through to Lutwyche, a distance of 2.45 km. At 12.48 m, these tunnel boring machines (TBM) are the largest diameter machines, outside of Japan, to incorporate annular two-component type grouting through the tailskins. Grout design, preparation and injection have been given particular attention in this project in order to push the boundaries of achievement. Laboratory testing was conducted on various mix designs to ensure the contract specifications for grout strength could be met. To study the mechanics of the grout injection process, Herrenknecht supplied a test rig which duplicates the grout injection systems on the TBMs. Multiple recipes were tested, carefully selected to balance the requirements of rapid strength development with high mobility (to completely fill the void between the segmental lining and the ground) and minimal bleed. Team Mixing Technologies, Canada, was selected as the grout plant provider based on the technical performance of their high shear colloidal mill mixers. Field results have shown that the colloidal mixer prepared grout gives almost double the strength of an identical grout prepared by a paddle mixer.


Song S.-H.,Maritime RandD Laboratory | Lee S.-H.,Maritime RandD Laboratory | Kim H.-C.,TEAM Technologies Inc. | Kim C.-H.,TEAM Technologies Inc.
Program Book - OCEANS 2012 MTS/IEEE Yeosu: The Living Ocean and Coast - Diversity of Resources and Sustainable Activities | Year: 2012

Long-range maritime communications system is necessary to sweep the mines efficiently and safely. The communication channel analyses in maritime environment were similar to 2-ray propagation model in free space. The communication distance can be extended to approximately 10km20km (depending on the type of the transmitted data). The results of this paper could be applied to similar weapon systems such as UUV (Unmanned Underwater Vehicle), ROV (Remotely Operated Vehicle), MDV (Mine Disposal Vehicle) and so on. © 2012 IEEE.


Schroder K.,University of Bonn | Klein R.,University of Bonn | Zinke A.,TEAM Technologies Inc.
Computer Graphics Forum | Year: 2013

Visual prototyping of materials is relevant for many computer graphics applications. A large amount of modelling flexibility can be obtained by directly rendering micro-geometry. While this is possible in principle, it is usually computationally expensive. Recently, bidirectional texture functions (BTFs) have become popular for efficient photorealistic rendering of surfaces. We propose an efficient system for the computation of synthetic BTFs using Monte Carlo path tracing of micro-geometry. We observe that BTFs usually consist of many similar apparent bidirectional reflectance distribution functions. By exploiting structural similarity we can reduce rendering times by one order of magnitude. This is done in a process we call non-local image reconstruction, which has been inspired by non-local means filtering. Our results indicate that synthesizing BTFs is highly practical and may currently only take a few minutes for BTFs with 70 × 70 viewing and lighting directions and 128 × 128 pixels. Non-Local Image Reconstruction for Efficient Computation of Synthetic Bidirectional Texture Functions Kai Schröder, Reinhard Klein, Arno Zinke We propose an efficient system for the synthesis of BTFs using Monte Carlo path tracing of micro-geometry. By exploiting structural similarity we can reduce rendering times by one order of magnitude. This is done in a process we call non-local image reconstruction, which has been inspired by non-local means filtering. © 2013 The Authors Computer Graphics Forum © 2013 The Eurographics Association and John Wiley & Sons Ltd.


Grant
Agency: Department of Defense | Branch: Navy | Program: SBIR | Phase: Phase I | Award Amount: 79.97K | Year: 2014

A reduced hazard antenna design will be developed for deployment on handheld and manpack radios. High voltage protection will be built into the antenna to prevent accidental electrical contact with high voltage power lines up to 25kVDC RMS. Prototypes of the high voltage protection devices will be developed and tested. The antenna design will be modeled before constructing a bench prototype, which will be tested for RF and HV protection performance.


Patent
TEAM Technologies Inc. | Date: 2014-01-15

A liquid dispensing system (10) having a reservoir, a flow through applicator (16) having a bore in flow communication with the reservoir, an applicator mount for mounting the applicator on the reservoir, a removable seal (20) for sealing liquid from escaping the dosing system. A flow restrictor (12) may be incorporated located within a portion of the bore of the applicator to control the flow rate and hence the dosing or application rate of the liquid from the reservoir. Alternatively, or in conjunction with the flow restrictor (12), a plunger (82) is included within the reservoir to be moved forward when the user squeezes the reservoir to urge liquid in the reservoir from the reservoir.


Patent
TEAM Technologies Inc. | Date: 2013-06-05

A liquid dispensing system having a reservoir, a flow through applicator having a bore in flow communication with the reservoir, an applicator mount for mounting the applicator on the reservoir, a removable seal for sealing liquid from escaping the dosing system. A flow restrictor may be incorporated located within a portion of the bore of the applicator to control the flow rate and hence the dosing or application rate of the liquid from the reservoir. Alternatively, or in conjunction with the flow restrictor, a plunger is included within the reservoir to be moved forward when the user squeezes the reservoir to urge liquid in the reservoir from the reservoir.

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