Abstract: This paper is centered around the design of a threadand memory-safe language, primarily for the compilation of application-specific services for extensible operating systems We describe various issues that have influenced the design of our language, called Cuckoo, that guarantees safety of programs with potentially asynchronous flows of control Comparisons are drawn between Cuckoo and related software safety techniques, including Cyclone and software-based fault isolation (SFI), and performance results suggest our prototype compiler is capable of generating safe code that executes with low runtime overheads, even without potential code optimizations Compared to Cyclone, Cuckoo is able to safely guard accesses to memory when programs are multithreaded Similarly, Cuckoo is capable of enforcing memory safety in situations that are potentially troublesome for techniques such as SFI

Abstract: Interest in the application of computer simulation in construction has been growing since the introduction of the CYCLONE (CYCLic Operation NEtwork) methodology in 1973. The CYCLONE methodology has become well establishedand its six standard modeling elements provide a simple, straightforward tool for the study of various construction operations. Many construction-specific simulation systems employ CYCLONE or CYCLONE-like symbols for system modeling. Nevertheless, CYCLONE's simplicity limits its functionality in modeling real world operations. This drawback complicates system modeling and results in ineffective simulations. This study takes advantage of recent developments in object-oriented design to formulate a new simulation system, COMSim (Construction Object-Modeling Simulation), to enhance simulation capability. The idea is to retain the simplicity of construction model building blocks, while enhancing their functionality by introducing object-oriented design. COMSim includes the object module, the simulation module, the GUI module, the DSS module for task duration, and the construction resource database. Case studies of an earthmoving and a material hoist lifting operation are conducted for system validation. Results and findings are reported.

Abstract: The concept of a "unique" object arises in many emerging programming languages such as Clean, CQual, Cyclone, TAL, and Vault. In each of these systems, unique objects make it possible to perform op...

Abstract: We propose a Web search site called "Cyclone", in which a user can retrieve encyclopedic term descriptions on the Web. Cyclone searches the Web for headwords and page fragments describing the headwords. High-quality page fragments are selected as term descriptions and are classified into domains. The number of current headwords is over 700,000.

Abstract: A cyclone separator ( 40 ) includes a housing ( 42 ), in which a cyclone assembly ( 10 ) is contained. The housing ( 42 ) has an inflow chamber ( 44 ), an overflow chamber ( 46 ) and a discharge chamber ( 48 ). The cyclone assembly ( 10 ) has an inner cyclone liner ( 16 ) positioned concentrically within a cyclone chamber ( 12 ). A displacement means ( 52 ) is provided for displacing the inner cyclone liner ( 16 ) axially from an operative position in the cyclone chamber ( 12 ) to an inoperative position in the overflow chamber ( 46 ) of the housing ( 42 ). The cyclone chamber ( 12 ) has a larger internal diameter than the inner cyclone liner ( 16 ), therefore, when the inner cyclone liner is moved to the inoperative position, the flowrate through the cyclone assembly is increased.

Abstract: Abstract The Great Hurricane of 1780 is widely known as the most deadly in the Western Hemisphere, having killed more than 20,000 people in the Caribbean. But in a single, horrible night halfway around the world in East Pakistan, a hurricane (known there as a tropical cyclone) killed between 300,000 and 500,000 people—more than ten times the death toll of the 1780 storm—making it the worst tropical cyclone disaster in history. The region around the mouth of the Ganges River is among the most calamity prone in the world. Consisting of low-lying marshy land and innumerable islands, the coastal plain is highly susceptible to flooding. Inhabitants trying to eke out a living by fishing and farming frequently confront freshwater floods from the Ganges and saltwater storm surges from the tropical cyclones that roar in from the Bay of Bengal, mostly in spring and fall. Owing to the very gentle average slope of the terrain, large areas of land are flooded by relatively small increases in sea level. To make matters worse, the shape of the Bay of Bengal and the gentle shoaling of the waters offshore are conducive to exceptionally large storm surges.

Abstract: Severe tropical cyclones are responsible for large casualties and considerable damage to property and agricultural crop. After the landfall, the main damages from cyclones are due to strong wind. An attempt has been made in this paper to study the nature of decay of wind speed of tropical cyclones after landfall for the period 1990-2003. It is found that the maximum wind speed decreased exponentially after landfall. A severe cyclonic storm decay to cyclonic storm within 6 to 9 hours after landfall where as very severe cyclonic storm decay to severe cyclonic storm within 6 hours and to cyclonic storm within 15 hours after the landfall. The mean decay rate is found to be 0.46 for the first 6 hours and 0.59 for the subsequent 6 hours.

Abstract: In this article, different types of cyclotron solid targets and their advantages and disadvantages are discussed and a new design is introduced for solid targets of IBA-Cyclone 30 cyclotrons for the first time. In this new targetry, the number and depth of the back grooves for coolant passage were changed. The target material was placed behind an aluminum drawer for bombardment. For this reason the new targetry was named drawer backings. Thus we were able to bombard powders of the target material. These backings have unique capabilities: metallic salts can be bombarded behind the drawer holders and chemical separation may be performed with higher yields and lower costs with respect to other methods. The bombardment may be repeated many times with the same backing. The drawer avoids the presence of contaminant nuclides in the final product.