7,944 research outputs found
The internationalization of Chinese and Indian firms: trends, motivations and policy implications
The rapid rise in the overseas
investments of Indian and Chinese firms
has attracted widespread attention
in recent years. To a large extent, the
growing internationalization of these
emerging economies has been driven by
a search for resources, technology and
related assets. What are the implications
of this for foreign direct investment
policy in both the source and the
recipient countries? Furthermore,
how will the ongoing global financial
crisis affect the continued expansion of
multinationals from the two countries,
which have relied on international
markets to fund their investments
The internationalization of Chinese and Indian firms: trends, motivations and strategy
The last two decades have seen significant internationalization of firms from developing economies, in terms of their greater participation in international trade, growing outflows of foreign direct investment (FDI), and a recent surge in their cross-border mergers and acquisition activity. Outward investment from developing countries is not a new phenomenon but in recent years there has been a marked increase in the magnitude of flows and a qualitative transformation in their pattern. Within this broad trend, the growing internationalization of firms from two fastgrowing developing countries, China and India, is particularly notable. Exports have been a central feature of the growth of the Chinese economy over the last three decades and, more recently, they have made a visible contribution to Indian growth too. Outward FDI from China and India has grown rapidly in recent years, and firms from these two countries are increasingly involved in overseas mergers and acquisitions
Optimal recovery from microburst wind shear
Severe low-altitude wind variability represents an infrequent but significant hazard to aircraft taking off or landing. During the period from 1964 to 1985, microburst wind shear was a contributing factor in at least 26 civil aviation accidents involving nearly 500 fatalities and over 200 injuries. A microburst is a strong localized downdraft that strikes the ground, creating winds that diverge radially from the impact point. The physics of microbursts have only been recently understood in detail, and it has been found that effective recovery from inadvertent encounters may require piloting techniques that are counter-intuitive to flight crews. The goal of this work was to optimize the flight path of a twin-jet transport aircraft encountering a microburst during approach to landing. The objective was to execute an escape maneuver that maintained safe ground clearance and an adequate stall margin during the climb-out portion of the trajectory
Achievable rate region for three user discrete broadcast channel based on coset codes
We present an achievable rate region for the general three user discrete
memoryless broadcast channel, based on nested coset codes. We characterize
3-to-1 discrete broadcast channels, a class of broadcast channels for which the
best known coding technique\footnote{We henceforth refer to this as Marton's
coding for three user discrete broadcast channel.}, which is obtained by a
natural generalization of that proposed by Marton for the general two user
discrete broadcast channel, is strictly sub-optimal. In particular, we identify
a novel 3-to-1 discrete broadcast channel for which Marton's coding is
\textit{analytically} proved to be strictly suboptimal. We present achievable
rate regions for the general 3-to-1 discrete broadcast channels, based on
nested coset codes, that strictly enlarge Marton's rate region for the
aforementioned channel. We generalize this to present achievable rate region
for the general three user discrete broadcast channel. Combining together
Marton's coding and that proposed herein, we propose the best known coding
technique, for a general three user discrete broadcast channel.Comment: A non-additive 3-user discrete broadcast channel is identified for
which achievable rate region based on coset codes is analytically proven to
be strictly larger than that achievable using unstructured iid codes. This
version is submitted to IEEE Transactions on Information Theor
Mobile vector soliton in a spin-orbit coupled spin- condensate
We study the formation of bound states and three-component bright vector
solitons in a quasi-one-dimensional spin-orbit-coupled hyperfine spin
Bose-Einstein condensate using numerical solution and variational approximation
of a mean-field model. In the antiferromagnetic domain, the solutions are
time-reversal symmetric, and the component densities have multi-peak structure.
In the ferromagnetic domain, the solutions violate time-reversal symmetry, and
the component densities have single-peak structure. The dynamics of the system
is not Galelian invariant. From an analysis of Galelian invariance, we
establish that the single-peak ferromagnetic vector solitons are true solitons
and can move maintaining constant component densities, whereas the
antiferromagnetic solitons cannot move with constant component densities
Vector solitons in a spin-orbit coupled spin- Bose-Einstein condensate
Five-component minimum-energy bound states and mobile vector solitons of a
spin-orbit-coupled quasi-one-dimensional hyperfine-spin-2 Bose-Einstein
condensate are studied using the numerical solution and variational
approximation of a mean-field model. Two distinct types of solutions with
single-peak and multi-peak density distribution of the components are
identified in different domains of interaction parameters. From an analysis of
Galilean invariance and time-reversal symmetry of the Hamiltonian, we establish
that vector solitons with multi-peak density distribution preserve
time-reversal symmetry, but cannot propagate maintaining the shape of
individual components. However, those with single-peak density distribution
violate time-reversal symmetry of the Hamiltonian, but can propagate with a
constant velocity maintaining the shape of individual components
Computing sum of sources over an arbitrary multiple access channel
The problem of computing sum of sources over a multiple access channel (MAC)
is considered. Building on the technique of linear computation coding (LCC)
proposed by Nazer and Gastpar [2007], we employ the ensemble of nested coset
codes to derive a new set of sufficient conditions for computing the sum of
sources over an \textit{arbitrary} MAC. The optimality of nested coset codes
[Padakandla, Pradhan 2011] enables this technique outperform LCC even for
linear MAC with a structural match. Examples of nonadditive MAC for which the
technique proposed herein outperforms separation and systematic based
computation are also presented. Finally, this technique is enhanced by
incorporating separation based strategy, leading to a new set of sufficient
conditions for computing the sum over a MAC.Comment: Contains proof of the main theorem and a few minor corrections.
Contents of this article have been accepted for presentation at ISIT201
Phase separation in a spin-orbit coupled Bose-Einstein condensate
We study a spin-orbit (SO) coupled hyperfine spin-1 Bose-Einstein condensate
(BEC) in a quasi-one-dimensional trap. For a SO-coupled BEC in a
one-dimensional box, we show that in the absence of the Rabi term, any non-zero
value of SO coupling will result in a phase separation among the components for
a ferromagnetic BEC, like Rb. On the other hand, SO coupling favors
miscibility in a polar BEC, like Na. In the presence of a harmonic trap,
which favors miscibility, a ferromagnetic BEC phase separates, provided the
SO-coupling strength and number of atoms are greater than some critical value.
The Rabi term favors miscibility irrespective of the nature of the spin
interaction: ferromagnetic or polar
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