Proceedings of the 16th annual Southeast regional conference最新文献_第8页

MSL: a microprocessors systems language 一种微处理器系统语言

Proceedings of the 16th annual Southeast regional conference Pub Date : 1978-04-13 DOI: 10.1145/503643.503646

S. Naqvi

引用次数: 0

FIST (foreign interactions in simulated transition): an instructional use of the computer 拳头(模拟过渡中的外国互动):计算机的教学使用

Proceedings of the 16th annual Southeast regional conference Pub Date : 1978-04-13 DOI: 10.1145/503643.503669

Pamela H. Kegley

引用次数: 0

Two-level control of a real-time data acquisition and control system for studying the electrical activity of the heart 一种用于研究心脏电活动的实时数据采集和控制系统的两级控制

Proceedings of the 16th annual Southeast regional conference Pub Date : 1978-04-13 DOI: 10.1145/503643.503706

R. Barr, G. S. Herman-Giddens, R. B. Warren, M. Spach

{"title":"Two-level control of a real-time data acquisition and control system for studying the electrical activity of the heart","authors":"R. Barr, G. S. Herman-Giddens, R. B. Warren, M. Spach","doi":"10.1145/503643.503706","DOIUrl":"https://doi.org/10.1145/503643.503706","url":null,"abstract":"A high speed data acquisition system for experiments investigating the electrical activity of the heart is discussed with emphasis on the method of specifying and controllinq the experiment in progress. Provision is made for control by the investigator during the experiment of such things as sampling rate, initiation and duration of sampling, control of temperature of tissue preparations, pacing rates of various stimuli, etc. For many experiments direct investigator control works well, but where sequences of control are complicated, or where changes in control must occur in real time (e.g. sampling duration changes within a single heart beat), or where sequences of pacing outputs must vary depending upon values of immediately preceding data, direct investigator control is not feasible. Our approach to this problem is to use a Master Program - a small separate module tailored to each particular experiment which can monitor the progress of the experiment and make control choices automatically - in effect, an automated operator, Master Programs are subroutines prepared independently from the data acquisition program and allow the investigator to continue to exert whatever control he desires while the Master Program is running. A Master Program and an associated set of system parameters are stored together in a \"workspace\" on auxiliary storage with other workspaces. Any workspace can be loaded, if required, during execution of the data acquisition program, quickly changing the experiment's environment. Master Programs operate as coroutines with the existing modules of the data acquisition program. A general description of the data acquisition system is given along with an example of a specific Master Program. The implementation method is briefly discussed.","PeriodicalId":166583,"journal":{"name":"Proceedings of the 16th annual Southeast regional conference","volume":"358 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1978-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123492672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

String operations for a data sublanguage 数据子语言的字符串操作

Proceedings of the 16th annual Southeast regional conference Pub Date : 1978-04-13 DOI: 10.1145/503643.503682

J. Grant

{"title":"String operations for a data sublanguage","authors":"J. Grant","doi":"10.1145/503643.503682","DOIUrl":"https://doi.org/10.1145/503643.503682","url":null,"abstract":"The starting point of this paper is the relational model of data as explained in [i]. We use the terminology table for relation, column for attribute, and row for tuple ([I] page 53). One of the fundamental properties of the relational model is that all the entries in the tables are nondecomposable (atomic) elements ([i] page 76). Such a database is said to be normalized. The usual examples of nonatomic entries in a table are arrays and structures. But if a table has such nonatomic entries it can be transformed into one with atomic entries only ([I] page 77). Normalization simplifies the data structures and operations of the data sublanguage and allows the use of the mathematical theory of relations to give a solid foundation to database theory. It should be noted that character string operations are not included in the usual data sublanguages for databases ([i] Chapters 5-8). Indeed if an entry, like a character string, is nondecomposable then we certainly cannot decompose it by taking a substring of the entry. Yet this means that some simple queries cannot be expressed in the language. Assume first that one column in a table is NAME. Then we may wish to have a query such as: Get all rows where NAME begins with the letter tG1 .","PeriodicalId":166583,"journal":{"name":"Proceedings of the 16th annual Southeast regional conference","volume":"2 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1978-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126153561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A challenge to the computer fraternity: computerized counting in veterinary parasitology 对计算机界的挑战:兽医寄生虫学中的计算机计数

Proceedings of the 16th annual Southeast regional conference Pub Date : 1978-04-13 DOI: 10.1145/503643.503707

Lindley C. Paxton

引用次数: 0

Proceedings of the 16th annual Southeast regional conference 第16届东南区域年会论文集

Proceedings of the 16th annual Southeast regional conference Pub Date : 1900-01-01 DOI: 10.1145/503643

引用次数: 1