This project presents the study of environmental and economic benefits of recycling dead lead-acid batteries. Its first objective is to examine the impacts of recycling on resource recovery, physical environment and health. The second objective is to examine the impacts of recycling on employment, foreign exchange earnings or savings, price of lead, and profit.

The allocation problem is known to be NP-Hard in the most general case where both the number of modules and the number of processors is arbitrary, and it is also Np-Complete in some of the restricted cases. Also, the general scheduling problem, where no restrictions are imposed on the interconnection structure between modules, on the modules processing time and on the number of parallel processors, is NP-Hard in the strong sense. Even under some restrictions, the scheduling problem is NP-Hard. In some other restricted cases, it is known to be NP-Complete. In this thesis, we first review fifty ...

The tracers L 15N-proline and L(1-13C)-leucine were used to explore the synthesis of skin proteins in vivo in rabbits. They orally received a single dose containing an equimolecular mixture of L(1-13C)-leucine and L15N-proline. The changes in the amounts of these tracers in blood and skin were monitored for a total of 8h. The data showed the appearance of the two tracers in blood within 15min and their clearance in 8h. They were both rapidly (15min) incorporated into skin proteins, but more proline was incorporated than leucine. We therefore consider L 15N -proline to be a better tracer than ...

Over the last few years, LAN technologies have been driven by the need to support an increasing number of users as well as bandwidth intensive applications. As new and existing network applications evolve to embrace high-resolution graphics, video and other rich media types, pressure is growing at the desktop, the server, the hub and the switch for increased bandwidth. All this has led to new network protocols needed to support the amount of information required. In this thesis, we will briefly review conventional networking protocols and internetworking devices. Then we present a table comparing ...

A well known problem with wormhole-routed packet networks is the potentially large amount of blocking that packets can experience due to link contention. Because of the very limited amount of buffering in such networks, blocked packets remain in the network and keep using network resources. Thus, blocked packets may in turn cause other packets to be blocked. This may affect a large number of packets over a large portion of the network. Proper connection management strategies and appropriate protocols must be devised to ensure that blocking of packets due to link contention is bounded. In [3], ...

The study of the relationship between population growth and human development in Lebanon for the period between 1990 and 1997, is divided into two major parts. First, I studied the relationship between population growth and each of the four components of HDI; education, health, revenue, and freedom. The analysis showed that the relationship between population growth and education; mainly adult literacy and school enrollment, for the sample data under study remains inconclusive. According to health; calculated as the average between crude birth rate, infant mortality rate, and crude death rate, ...

Data Fragmentation is a heuristic problem in the design of a distributed database. Its purpose is to maximize the locality of reference, minimize data access at remote site, and to decrease the number of disk accesses in the system. In this thesis, we review the design a homogeneous distributed database. As the design is a heuristic problem, we also review a number of algorithms suggested as solutions to the three types of fragmentation: vertical, horizontal or mixed. Next, we propose that a previously implemented routine entitled "a transaction-based vertical partitioning algorithm" can be ...