The Indian Community and Its Economic Activity in Zanzibar During the 19th Century

The Indians were considered the main category working in trade in Zanzibar during the reign of Sultan Saeed Bin Sultan, the founder of the modern state of Zanzibar (1806-1856). The Indian traders got the appreciation and respect of Saeed Bin Sultan and they were allowed to work in trade in the region and he treated them as local traders in order to establish a commercial empire. Hence most of the Indian traders came during his rule, and in 1835, as the case with others, they came with the seasonal wind. The Indian traders were Muslims and Hindu, but they didn't consider Zanzibar as their homeland, they used to travel to India and come back. Among them, the Moslem Bahara became prominent, most of them were rich traders, who lived in Zanzibar and took it as their homeland. The Indian traders succeeded in supporting the economics of Zanzibar and financing the Arab commercial projects and developing the internal trade. Some of them succeeded in possessing large farms of cloves. And because of their commercial activity and their economic status they succeeded in establishing an excellent social position and they taught their children reading and writing. On the other side Britain encouraged the Indians to migrate to Eastern Africa because of its need for the technical Indian working class and handcraft to make use of their experience. Hence the important role of the Indian merchants in the trade of Eastern Africa came

DC fault isolation study of bidirectional dual active bridge DC/DC converter for DC transmission grid application

Fast isolation and detection of DC faults is currently a limiting factor in high power DC transmission grid development. Recent research has shown that the role of DC/DC converters is becoming increasingly important in solving various DC grid challenges such as voltage stepping, galvanic isolation and power regulation. This paper focuses on an additional important feature of bidirectional dual active bridge (DAB) DC-DC converters which make it attractive for future DC grids; it's inherent fault isolation capability which does not need control intervention to limit fault current in case of the most severe DC faults. Detailed analytical, simulation and experimental study are performed by subjecting the converter to DC short circuit faults at its DC voltage terminals. The results obtained have shown significant advantage of DAB where fault current is less than rated current during the fault duration. Thus no control action is necessary from the non-faulted bridge to limit fault current and no external DC circuit breakers are required. This advantage makes DAB converter feasible for DC grid integration

Industrial Terrorism and the Unmaking of New Deal Labor Law

The passage of the Wagner (National Labor Relations) Act of 1935 represented an unprecedented effort to guarantee American workers basic labor rights--the rights to organize unions, to provoke meaningful collective bargaining, and to strike. Previous attempts by workers and government administrators to realize these rights in the workplace met with extraordinary, often violent, resistance from powerful industrial employers, whose repressive measures were described by government officials as a system of industrial terrorism. Although labor scholars have acknowledged these practices and paid some attention to the way they initially frustrated labor rights and influenced the jurisprudence and politics of labor relations in the late 1930s and early 1940s, the literature has neither adequately described the extent and intensity of this phenomenon nor fully explored its effects. This Article remedies that shortcoming. Focusing on three industries where the practice of industrial terrorism was especially well developed and its influence especially pronounced, this Article shows how the practitioners of industrial terrorism and their allies in Congress were able to turn the legacy of violence and disorder, which they authored by their violent resistance to the Wagner Act, into the basis of an extraordinary counterattack on labor rights. It shows how this attack culminated in 1947 with the enactment of the profoundly reactionary Taft-Hartley Act and remade the landscape of American labor relations

A convexity of functions on convex metric spaces of Takahashi and applications

We quickly review and make some comments on the concept of convexity in metric spaces due to Takahashi. Then we introduce a concept of convex structure based convexity to functions on these spaces and refer to it as $W-$convexity. $W-$convex functions generalize convex functions on linear spaces. We discuss illustrative examples of (strict) $W-$convex functions and dedicate the major part of this paper to proving a variety of properties that make them fit in very well with the classical theory of convex analysis. Finally, we apply some of our results to the metric projection problem and fixed point theory