A low cost split-issue technique to improve performance of SMT clustered VLIW processors

2010 ◽  
Author(s):  
Manoj Gupta ◽  
Fermin Sanchez ◽  
Josep Llosa
Keyword(s):  
Low Cost ◽  
Improve Performance ◽  
Vliw Processors

Interaction Control for Rehabilitation Robotics via a Low-Cost Force Sensing Handle

2013 ◽  
Author(s):  
Andrew Erwin ◽  
Fabrizio Sergi ◽  
Vinay Chawda ◽  
Marcia K. O’Malley
Keyword(s):  
Grip Force ◽  
Force Feedback ◽  
Low Cost ◽  
Interaction Force ◽  
Rehabilitation Robotics ◽  
Haptic Interface ◽  
Force Sensing ◽  
Improve Performance ◽  
Feedback Controllers ◽  
Interaction Control

This paper investigates the possibility of implementing force-feedback controllers using measurement of interaction force obtained through force-sensing resistors (FSRs), to improve performance of human interacting robots. A custom sensorized handle was developed, with the capability of simultaneously measuring grip force and interaction force during robot-aided rehabilitation therapy. Experiments are performed in order to assess the suitability of FSRs to implement force-feedback interaction controllers. In the force-feedback control condition, the applied force for constant speed motion of a linear 1DOF haptic interface is reduced 6.1 times compared to the uncontrolled condition, thus demonstrating the possibility of improving transparency through force-feedback via FSRs.

scholarly journals ERGONOMIC EVALUATION OF LOW COST ADJUSTABLE WORKSTATION FOR ASSEMBLY OPERATION

2014 ◽  
pp. 84-89
Author(s):  
QUTUBUDDIN S. M ◽  
S.S. HEBBAL ◽  
A.C.S. KUMAR
Keyword(s):  
Low Cost ◽  
Health And Safety ◽  
Small Scale ◽  
Design Features ◽  
Improve Performance ◽  
Assembly Task ◽  
Assembly Operation ◽  
Operator Performance ◽  
Industrial Assembly ◽  
Small Scale Industries

Ergonomics is the science and technology of fitting the activities and environment to the abilities, dimensions, and needs of people to improve performance while enhancing comfort, health and safety [1] The objective of the present study was to investigate the effects of an ergonomically designed adjustable workstation for performing a repetitive industrial assembly task on operator performance and productivity. Ergonomically designed fully adjustable assembly workstations could be expensive for companies to adopt, especially the small scale industries. Therefore, a low-cost, ergonomically designed adjustable assembly workstation was designed, developed and evaluated for assembly of a product in a manufacturing company. Experiments were conducted on the existing fixed height and on the newly designed ergonomic assembly workstation using five industrial assembly operators. The operator performance on the ergonomically designed workstation was 29% higher compared to the existing non ergonomically designed fixed height assembly workstation. The increased performance was due to flexibility and ergonomic design features incorporated in the workstation.

scholarly journals A SOLUTION TO IMPROVE PERFORMANCE OF AC-CDI SYSTEMS USED IN MOTORCYCLES

2009 ◽  
Vol 12 (14) ◽  
pp. 28-36
Author(s):  
Long Dang Tran ◽  
Thang Viet Vu ◽  
Tri Quoc Dinh
Keyword(s):  
Power Efficiency ◽  
Low Cost ◽  
Good Control ◽  
Control Algorithms ◽  
Ignition Timing ◽  
Improve Performance ◽  
Capacitor Discharge ◽  
Control Units ◽  
Discharge Ignition ◽  
Higher Power

This paper presents a solution to improve performance of AC capacitor discharge-ignition (AC-CDI) systems for most of motorcycles presently used in Vietnam. Due to low cost, these AC-CDI systems normally use very simple structures and electrical electronic-components, especially their electronic control units (ECUs). Their main disadvantages are high power loss and only one or several different constant ignition timings. With a low cost micro-processor and good control algorithms, a new design for AC-CDI ECU could reach both higher power efficiency for the system and highly variable ignition timing related to engine rpm. These advantages could lead to more powerful spark, better power, higher fuel economy, lower exhaust emissions and smoother driveability for engine.

scholarly journals Probabilistic Path and Data Capacity Based Handover Decision for Hierarchical Macro- and Femtocell Networks

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Jae-Wook Lee ◽  
Sang-Jo Yoo
Keyword(s):  
Low Cost ◽  
Mobile Station ◽  
Data Rate ◽  
Network Coverage ◽  
Improve Performance ◽  
Femtocell Networks ◽  
Handover Decision ◽  
Communication Capacity ◽  
Data Capacity ◽  
Simulation Results

Femtocells are considered a technology to improve performance of a network by increasing network coverage and communication capacity at a relatively low cost. However, if there are a lot of femtocells in a macrocell, the number of handovers greatly increases, and unnecessary handovers can occur from the mobile station temporarily passing through a femtocell. In this paper, we propose a method that probabilistically estimates the path in a femtocell and makes a handover decision based on the available data capacity of a mobile station on the estimated path. Simulation results show that the proposed method effectively reduces the number of unnecessary handovers while improving the data rate and capacity.

Comparison of Semi-Implicit and Explicit Finite Difference Algorithms on Highly Parallel Processing Architectures

2014 ◽  
Vol 553 ◽  
pp. 193-198
Author(s):  
Nicholas J. Stewart ◽  
David W. Holmes ◽  
Wen Xian Lin ◽  
Steven W. Armfield ◽  
Michael P. Kirkpatrick
Keyword(s):  
Low Cost ◽  
Parallel Architecture ◽  
Common Source ◽  
Improve Performance ◽  
Graphical Processing Units ◽  
Processing Power ◽  
Explicit Finite Difference ◽  
Graphical Processing ◽  
Processing Architectures ◽  
Implicit And Explicit

Modern GPUs (graphical processing units) are a common source of processing power inmany supercomputers. Their performance derives from the highly parallel architecture that is em-ployed and have the benefit of low cost, temperature and power consumption. Two finite differencemodels have been implemented on GPU, a semi-implicit and an explicit algorithm, to numericallymodel a stratified shear layer, that needs fine meshes to be modelled accurately. The GPU modelswere shown to improve performance by factors of around 50x and 20x for the semi-implicit and ex-plicit models respectively.

Decomposition of the metastable beta titanium alloy Ti-15-3

1983 ◽  
Vol 41 ◽  
pp. 264-265
Author(s):  
Y. L. Chen ◽  
S. Fujlshiro
Keyword(s):  
Low Cost ◽  
High Strength ◽  
Alpha Phase ◽  
Thick Sheet ◽  
Omega Phase ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Beta Matrix ◽  
Metastable Beta ◽  
Very High

Metastable beta titanium alloys have been known to have numerous advantages such as cold formability, high strength, good fracture resistance, deep hardenability, and cost effectiveness. Very high strength is obtainable by precipitation of the hexagonal alpha phase in a bcc beta matrix in these alloys. Precipitation hardening in the metastable beta alloys may also result from the formation of transition phases such as omega phase. Ti-15-3 (Ti-15V- 3Cr-3Al-3Sn) has been developed recently by TIMET and USAF for low cost sheet metal applications. The purpose of the present study was to examine the aging characteristics in this alloy.The composition of the as-received material is: 14.7 V, 3.14 Cr, 3.05 Al, 2.26 Sn, and 0.145 Fe. The beta transus temperature as determined by optical metallographic method was about 770°C. Specimen coupons were prepared from a mill-annealed 1.2 mm thick sheet, and solution treated at 827°C for 2 hr in argon, then water quenched. Aging was also done in argon at temperatures ranging from 316 to 616°C for various times.

Chromic Acid Etching of Polyethylene

1973 ◽  
Vol 31 ◽  
pp. 72-73
Author(s):  
J. D. Muzzy ◽  
R. D. Hester ◽  
J. L. Hubbard
Keyword(s):  
Chromic Acid ◽  
Low Cost ◽  
Acid Etching ◽  
Crystalline Morphology ◽  
Bulk Specimen ◽  
Morphological Studies ◽  
Perfect Form ◽  
Molecular Length ◽  
Lamellar Texture ◽  
Cost Studies

Polyethylene is one of the most important plastics produced today because of its good physical properties, ease of fabrication and low cost. Studies to improve the properties of polyethylene are leading to an understanding of its crystalline morphology. Polyethylene crystallized by evaporation from dilute solutions consists of thin crystals called lamellae. The polyethylene molecules are parallel to the thickness of the lamellae and are folded since the thickness of the lamellae is much less than the molecular length. This lamellar texture persists in less perfect form in polyethylene crystallized from the melt.Morphological studies of melt crystallized polyethylene have been limited due to the difficulty of isolating the microstructure from the bulk specimen without destroying or deforming it.

Glass Knife Geometry as Seen by the SEM

1971 ◽  
Vol 29 ◽  
pp. 454-455
Author(s):  
J. Temple Black
Keyword(s):  
Low Cost ◽  
Amorphous Material ◽  
Stress Concentrations ◽  
Basic Tool ◽  
Tool Materials ◽  
Optical Inspection ◽  
Surface Flaws ◽  
Slip Planes ◽  
Glass Knife ◽  
Diamond Knife

In ultramicrotomy, the two basic tool materials are glass and diamond. Glass because of its low cost and ease of manufacture of the knife itself is still widely used despite the superiority of diamond knives in many applications. Both kinds of knives produce plastic deformation in the microtomed section due to the nature of the cutting process and microscopic chips in the edge of the knife. Because glass has no well defined slip planes in its structure (it's an amorphous material), it is very strong and essentially never fails in compression. However, surface flaws produce stress concentrations which reduce the strength of glass to 10,000 to 20,000 psi from its theoretical or flaw free values of 1 to 2 million psi. While the microchips in the edge of the glass or diamond knife are generally too small to be observed in the SEM, the second common type of defect can be identified. This is the striations (also termed the check marks or feathers) which are always present over the entire edge of a glass knife regardless of whether or not they are visable under optical inspection. These steps in the cutting edge can be observed in the SEM by proper preparation of carefully broken knives and orientation of the knife, with respect to the scanning beam.

Sign in / Sign up

Export Citation Format

Share Document