Remote information retrieval facility

Remote information retrieval facility descriptio

Online mass storage system detailed requirements document

The requirements for an online high density magnetic tape data storage system that can be implemented in a multipurpose, multihost environment is set forth. The objective of the mass storage system is to provide a facility for the compact storage of large quantities of data and to make this data accessible to computer systems with minimum operator handling. The results of a market survey and analysis of candidate vendor who presently market high density tape data storage systems are included

Identity-Based Proxy-Oriented Data Uploading and Remote Data Integrity Checking in Public Cloud

More and more clients would like to store their data to public cloud servers (PCSs) along with the rapid development of cloud computing. New security problems have to be solved in order to help more clients process their data in public cloud. When the client is restricted to access PCS, he will delegate its proxy to process his data and upload them. On the other hand, remote data integrity checking is also an important security problem in public cloud storage. It makes the clients check whether their outsourced data are kept intact without downloading the whole data. From the security problems, we propose a novel proxy-oriented data uploading and remote data integrity checking model in identity-based public key cryptography: identity-based proxy-oriented data uploading and remote data integrity checking in public cloud (ID-PUIC). We give the formal definition, system model, and security model. Then, a concrete ID-PUIC protocol is designed using the bilinear pairings. The proposed ID-PUIC protocol is provably secure based on the hardness of computational Diffie–Hellman problem. Our ID-PUIC protocol is also efficient and flexible. Based on the original client’s authorization, the proposed ID-PUIC protocol can realize private remote data integrity checking, delegated remote data integrity checking, and public remote data integrity checking

Industrial Applications of Mathematics- A Review

Industrial Mathematics is a emerging field within the mathematical sciences. It is characterized by the origin of the problems which it engages and are associated with industry. For example Research and Development, finances, manufacturing, software and information technology and communications to list a few. In this review we aim to explore a better understanding of industrial models and processes through mathematical ideas and computations

Parallel Seismic 2-D Reverse Time Migration

In Oil and Gas industries, Reverse Time Migration (RTM) has become a powerful technology in seismic imaging for complex subsurface structures, because of the quality and integrity of the images it provides. But computational cost of RTM is high. In case of RTM, program run times are long, i.e. total number of CPU cycles are more and it requires large amount of disk space. This hinders its practical success. To accelerate computing, parallelization can be used which can be implemented by using Message Passing Interface (MPI) and OpenMP on multicore computers, for forward modelling and reverse time extrapolation. MPI is used to exploit core-level parallelism and OpenMP to exploit thread-level parallelism. On the daily basis practical use of serial implementation of RTM is not possible. We implemented RTM parallelly by using MPI and OpenMP so that we can achieve better performance

A Survey paper on Cloud Environment for Backup and Data Storage

The use of the disks of the nodes of a cluster as worldwide stockpiling framework is a reasonable answer for a cloud situation. The requirement for the accessible of data from anyplace is expanding; this speaks to an issue for some clients who use applications, for example, databases, media, individual document, records, and so forth. The I/O information requests of these applications get higher as they get bigger. So as to enhance execution of these applications can utilize parallel document frameworks. PVFS2 is a free parallel record framework grew by a multi-organization group of parallel I/O, systems administration and capacity specialists. In this overview of the configuration of an execution for cloud environment for ready to store and move down information by utilizing remote servers that can be gotten to through the Internet. The execution expects to expand the accessibility of information and lessen in loss of data. DOI: 10.17762/ijritcc2321-8169.16047

Annotated Bibliography of Films in Automation, Data Processing, and Computer Science

With the rapid development of computer science and the expanding use of computers in all facets of American life, there has been made available a wide range of instructional and informational films on automation, data processing, and computer science. Here is the first annotated bibliography of these and related films, gathered from industrial, institutional, and other sources. This bibliography annotates 244 films, alphabetically arranged by title, with a detailed subject index. Information is also provided concerning the intended audience, rental-purchase data, ordering procedures, and such specifications as running time and film size.https://uknowledge.uky.edu/upk_computer_science/1000/thumbnail.jp

Quantitative analysis of defects in silicon. Silicon sheet growth development for the large are silicon sheet task of the low-cost solar array project

One hundred and seventy four silicon sheet samples were analyzed for twin boundary density, dislocation pit density, and grain boundary length. Procedures were developed for the quantitative analysis of the twin boundary and dislocation pit densities using a QTM-720 Quantitative Image Analyzing system. The QTM-720 system was upgraded with the addition of a PDP 11/03 mini-computer with dual floppy disc drive, a digital equipment writer high speed printer, and a field-image feature interface module. Three versions of a computer program that controls the data acquisition and analysis on the QTM-720 were written. Procedures for the chemical polishing and etching were also developed

Technology requirements for future Earth-to-geosynchronous orbit transportation systems. Volume 3: Appendices

Technological requirements and forecasts of rocket engine parameters and launch vehicles for future Earth to geosynchronous orbit transportation systems are presented. The parametric performance, weight, and envelope data for the LOX/CH4, fuel cooled, staged combustion cycle and the hydrogen cooled, expander bleed cycle engine concepts are discussed. The costing methodology and ground rules used to develop the engine study are summarized. The weight estimating methodology for winged launched vehicles is described and summary data, used to evaluate and compare weight data for dedicated and integrated O2/H2 subsystems for the SSTO, HLLV and POTV are presented. Detail weights, comparisons, and weight scaling equations are provided