AbstractThe aim of this experiment was to improve the mechanical properties of SSM 356 aluminum alloys by friction stir processing, a solid-state technique for microstructural modification using the heat from a friction and stirring. The parameters of friction stir processing for SSM 356 aluminum alloys were studied at three different travelling speeds: 80, 120 and 160mm/min under three different rotation speeds 1320, 1480 and 1750rpm. The hardness and tensile strength properties were increased by friction stir processing. The hardness of friction stir processing was 64.55 HV which was higher than the base metal (40.58 HV). The tensile strengths of friction stir processing were increased about 11.8% compared to the base metal. The optimal processing parameter was rotation speed at 1750rpm with the travelling speed at 160mm/min. Consequently, the application of the friction stir processing is a very effective method for the mechanical improvement of semi-solid metal aluminum alloys

Crawford, Gregory S.

Lee, Robin S.

Whinston, Michael Dennis

Yurukoglu, Ali

We investigate the welfare effects of vertical integration of regional sports networks (RSNs) with programming distributors in U.S. multichannel television markets. Vertical integration can enhance efficiency by reducing double marginalization and increasing carriage of channels, but can also harm welfare due to foreclosure and incentives to raise rivals' costs. We estimate a structural model of viewership, subscription, distributor pricing, and affiliate fee bargaining using a rich data set on the U.S. cable and satellite television industry (2000–2010). We use these estimates to analyze the impact of simulated vertical mergers and divestitures of RSNs on competition and welfare, and examine the efficacy of regulatory policies introduced by the U.S. Federal Communications Commission to address competition concerns in this industry

Crawford, Gregory S

Lee, Robin S

Whinston, Michael D

ZORA

The welfare effects of vertical integration in multichannel television markets

S. Chainarong

P. Muangjunburee

S. Suthummanon

Crossref

Procedia Engineering

Friction Stir Processing of SSM356 Aluminium Alloy

We investigate the welfare effects of vertical integration of regional sports networks (RSNs) with programming distributors in U.S. multichannel television markets. Vertical integration can enhance efficiency by reducing double marginalization and increasing carriage of channels, but can also harm welfare due to foreclosure and incentives to raise rivals' costs. We estimate a structural model of viewership, subscription, distributor pricing, and affiliate fee bargaining using a rich dataset on the U.S. cable and satellite television industry (2000-2010). We use these estimates to analyze the impact of simulated vertical mergers and divestitures of RSNs on competition and welfare, and examine the efficacy of regulatory policies introduced by the U.S. Federal Communications Commission to address competition concerns in this industry

Whinston, Michael

Chainarong, S.

Muangjunburee, P.

Suthummanon, S.

Elsevier - Publisher Connector 

Friction Stir Processing of SSM356 Aluminium Alloy 

MUCC (Crossref)

Gregory S. Crawford

Robin S. Lee

Michael D. Whinston

Ali Yurukoglu

Econometrica

The Welfare Effects of Vertical Integration in Multichannel Television Markets

We investigate the welfare effects of vertical integration of regional sports networks (RSNs) with programming distributors in U.S. multichannel television markets. Vertical integration can enhance efficiency by reducing double marginalization and increasing carriage of channels, but can also harm welfare due to foreclosure and incentives to raise rivals' costs. We estimate a structural model of viewership, subscription, distributor pricing, and affiliate fee bargaining using a rich data set on the U.S. cable and satellite television industry (2000–2010). We use these estimates to analyze the impact of simulated vertical mergers and divestitures of RSNs on competition and welfare, and examine the efficacy of regulatory policies introduced by the U.S. Federal Communications Commission to address competition concerns in this industry.National Science Foundation (U.S.)Economic and Social Research Council (Great Britain) (Grant RES‐062‐23‐2586)New York University. Stern Center for Global Economy and BusinessToulouse Network for Information Technolog

DSpace@MIT

http://dspace.mit.edu/bitstream/1721.1/120992/1/w21832.pdf

Friction Stir Processing of SSM356 Aluminium Alloy

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ZORA

Crossref

ZORA

Elsevier - Publisher Connector

MUCC (Crossref)

Elsevier - Publisher Connector

Crossref

DSpace@MIT