Tushar Chande

Tushar Chande

PhD

About

35
Publications
6,872
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316
Citations
Citations since 2017
3 Research Items
63 Citations
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2017201820192020202120222023024681012
2017201820192020202120222023024681012
2017201820192020202120222023024681012

Publications

Publications (35)
Presentation
Full-text available
Key words: Pediatric emergency department, patient flows, delays, patient arrival surges, emergency department operations management, physician stress, physician burnout
Article
Connecting the trading environment to CTA returns.
Article
Understanding the risk and reward characteristics of your trading system is vital to consistent success. A style-based classification process will make knowing your system easier.
Article
Technical indicators, and oscillators in particular, measure the behavior of price relative to time. For example, the rate of change oscillator calculates the percentage change in price over a set period. That said, now consider an indicator that reverses the role of price to time and measures the passage of time relative to price. This article det...
Article
A stock's price may be considered a mechanism to adjust its dividend yield. In the short run, the dollar amount of the dividend is fixed, and so stock prices change to accommodate changes in bond yields. Lags occur because it takes time to convince participants that bond yields have changed meaningfully. Here's an example of quantitative intermarke...
Article
If a market is active, it has volatility: that cannot be avoided. And because the market is continuously changing, an indicator that attempts to predict market activity must itself adapt and change. How? Tushar Chande presents a dynamic—not static—indicators: a variable-length moving average, which adapts to the volatility in question by exponentia...
Article
A screw fed, gravity flow, carrier gas aided powder delivery system was used to produce laser surface alloys using chromium and nickel powders on AISI 1016 steel. A 10 kW continuous wave CO2 laser was used for alloying, at incident power densities up to 1.2 × 1010 W m?2 and traverse speeds up to 0.03 m s?1. Ten overlapped passes were used to make a...
Article
The process of alloy generation during laser surface alloying was examined. A numerical model was developed that solved the two‐dimensional, transient equation for convection diffusion of matter in the melt pool using the alternate‐diagonal implicit method. Velocity distributions used were for steels for a laser power of 1.5 kW, a 0.001‐m beam diam...
Article
This paper examines the role of traverse speed, Beer–Lambert absorption coefficient β, surface reflectivity, and changing liquid thermal conductivity upon the shape of the melt pool and the cooling rates that occur. The dependence of β upon processing conditions is also examined. A three‐dimensional variable property, moving heat source, quasi‐stea...
Article
The thermal analysis of undercooled and subsequently congruently crystallizing metallic and ceramic substances has been studied. The heat flow conditions and interface velocity are described using an approximate analytical technique in one dimension. The relevant dimensionless parameters are described with respect to the heat flow problem. For the...
Conference Paper
The process of alloy generation during laser surface alloying was examined. A numerical model was developed that solved the two-dimensional, transient equation for convection-diffusion of matter in the melt pool using the alternate-diagonal implicit method. Velocity distributions used were for steels for a laser power of 1.5 kW, a 0.0001 m beam dia...
Article
Laser surface alloying, a process of growing interest for local surface modification, relies upon a suitable composition and microstructure for satisfactory on-the-job performance. This paper reports the results of an initial systematic study of laser surface alloying nickel onto AISI 1020 steel substrates using a statistical experimental design te...
Article
A dimensional analysis of laser surface alloying (LSA) using measurable experimental variables and known thermophysical properties has been carried out to identify useful dimensionless parameters influencing LSA. Measured solute contents from a two-level factorial experiment alloying nickel into AISI 1020 steel substrates are plotted against these...
Article
The role of fluid flow in producing uniformly alloyed beads in laser surface alloying is examined and the experimental finding that the uniformity of alloying increased with a decrease in the beam diameter is analyzed. Fluid flow can dominate the process of solute redistribution in the melt pool by producing a fine dispersion of solute rich pockets...
Conference Paper
The feasibility of fairly uniform surface alloying using high-power continuous lasers has been firmly established.1-3 Experimental studies have produced highly alloyed beads,1 while limited data on the effect of traverse speed on the depth, width, and solute content of the alloyed bead are available.3 Important questions remain unanswered, however,...

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