Automotive painting--an economic and strategic analysis

Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1994.Includes bibliographical references (leaves 46-47).by Renu Agawal.M.S

Metabolic Syndrome and Male Fertility

Metabolic syndrome (MetS) represents a cluster of conditions that have a negative impact on human health overall. Its preva-lence has been rapidly increasing worldwide and has coincided with a global decrease in birth rates and fertility potential. This review aims to address this observation through studying the relationship between MetS and male reproductive health. The effects of obesity, dyslipidemia, hypertension, and insulin resistance on male fertility were examined and supporting evi-dence explaining the pathophysiology of sperm dysfunction with each MetS component were described. Adopting a healthy lifestyle appears to be the single most important intervention to prevent the unwanted effects of MetS on men’s health and fertility. Further studies addressing the components of MetS and their impact on male reproduction are required to enhance our understanding of the underlying pathophysiology and to propose new methods for therapeutic intervention

Effect Of Equivalent Weight Of Phosphotungstic Add-Incorporated Composite Membranes On The High Temperature Operation Of Pem Fuel Cells

Two types of composite membrane were prepared by incorporating phosphotungstic acid (PTA) into host Nafion® membranes; one with 1100 EW of Nafion® and 15% PTA, namely FSEC1, and the other with 750 EW of Nafion® and 15% PTA, namely FSEC3. Catalyst-coated membranes (CCMs) were made using the composite membranes with the 32 wt.% and 25 wt.% ionomer contents in the catalyst layer for FSEC1 and FSEC3 membranes, respectively. The composite membranes were tested in a 25 cm2 single cell at the temperature of 80°C, 100°C, and 120°C and compared to Nafion® 112. At 80°C and 100°C, the performance of FSEC1 membrane showed the highest and followed by Nafion® 112 and FSEC3 membranes. However, both the composite membranes, FSEC1 and FSEC3, outperformed Nafion® 112 at 120°C, showing great potential for their application in the high temperature (∼120°C) operations. At 400 mA/cm2, the potentials maintained were 0.47V, 0.55V, and 0.51V for Nafion®, FSEC1 and FSEC3 membranes, respectively. The resistance of oxygen mass transfer in FSEC3 was pronounced at high temperature as evidenced by oxygen gain at the temperature. © The Electrochemical Society