Showing papers on "Component (UML) published in 1971"

Vibration Analysis of Structures by Component Mode Substitution

Abstract: A method is presented to determine the vibration modes of a complex structural system by using component vibration modes. The structural system is considered to be an assemblage of subsystems or components. The vibration modes for each component are determined separately and then used to synthesize the system modes. The number of component modes used may be truncated to reduce the number of generalized coordinates required for a vibration analysis. Only component vibration modes are retained as generalized coordinates when the system modes are obtained; hence, the method is particularly suitable for structures with a large number of component interface coordinates, such as finiteelement shell models. The boundary conditions used for determining component vibration modes can be either free-free or constrained. An optional technique to modify the component modes is included in order to obtain more accurate system modes. Numerical results from two examples are included.

A Survey of Fault Tolerant Computer Architecture and its Evaluation

Abstract: In striving to design highly reliable, highly available computers, two basic strategies have been employed: increasing the reliability throug-h advances in component technology; and designing self-repairing computers which use functional redundancy to permit correct performance (perhaps in a degraded manner) in the presence of component failures. Time has shown a fluctuation in the popularity of each strategy, based primarily on changes in technologies, applications and costs.

Rigid plastics tile with textured surface

Abstract: Rigid composite impact resistant textured tiles having a pliable and essentially void-free plastics facing component and a rigid backing component, are prepared by a specified sequential operation.

Computer-Aided Network Tuning

Abstract: An important part of preproduction design evaluation of networks requiring tuning at the test site is to demonstrate that they can be tuned to specifications by manual methods. A computeroriented tuning strategy is described that uses response sensitivity to component variations to select a best component at each stage as well as its direction of movement and size of adjustment. This method is superior to pattern-search techniques and sequential linear-search procedures. Computation time is considerably reduced by the use of sensitivity data to predict network responses.

Simulation Research in Interchangeable Part Manufacturing

Abstract: Simulation is being used to attain a better understanding of many complex situations. In this analysis, GPSS/360 was employed as a simulation language to investigate the effects of operating policy guidelines and decision rules in the manufacture of component parts used interchangeably in the final product form. The analysis is developed on hypothetical data and interchangeable part mixture based on an actual manufacturing systems. A number of criterion measures are considered, and four policy decision rules are investigated.

Component insertion apparatus

Abstract: Apparatus for releasing multi-lead components singly from each of a plurality of magazines and directing the released set of components to predetermined groups of perforations in a circuit panel for insertion of the component leads Magazines can be readily moved to different positions on the panel to facilitate the assembly of various circuit arrangements, and the circuit panel to receive the components is moved to such a position by the component dispensing mechanism at the time the set of components is to be released from the respective magazines

Stream Channel Concept Applied to Waterflood Performance Calculations For Multiwell, Multizone, Three-Component Cases

Abstract: The Higgins-Leighton technique for estimating waterflood performance was expanded to include the calculation of fluid production and injection for a multi-well, multi-zone system with asymmetrical drainage areas. This 2-dimensional, analytical method is based on the computer solution of streamlines, shape factors, waterflood performance by channels, and well-zone-field production combinations. The flow regime for each injector-producer pair in the system is represented by a series of channels whose sides are bounded by streamlines. Each channel may have a unique value for porosity, water saturation, and permeability. The channels are divided into equal volume cells to permit approximation of Buckley-Leverett linear displacement, with radial flow occurring through the cells adjacent to the producer and injector, and linear flow through the remaining cells. Initial conditions may include gas saturation for partial depletion. Streamline positions are generated from the solution of the flow potential in the Laplace equation for steady-state flow of 2 fluids of unit mobility in a uniform bed of constant porosity, water saturation, and absolute permeability.

Veiling Glare Due to Reflections from Component Surfaces: The Paraxial Approximation

Abstract: Veiling glare can cause significant deterioration of image quality in many systems. One of the sources of veiling glare, that of multiple reflections, can be investigated in the paraxial approximation. Paraxial ray tracing offers a rapid method of determining which surfaces, if any, are likely to cause significant veiling glare. The procedure outlined here is intended to be used at the design stage.

Concept-Scale and Concept-Component Interaction in the Semantic Differential.

Abstract: A variation of concept-scale interaction in the semantic differential, labeled concept-component interaction, is discussed. A comparison is made of various methods of analyzing semantic differential data, and an alternative method is introduced which provides evidence of concept-component interaction. Implications for semantic differential measurement are discussed.

Status of the 2 to 15 kWe Brayton power system and potential gains from component improvements

Abstract: Component and system performance tests of Brayton cycle power conversion system in 2 to 15 kW sub e range

Visual-tactile symbiotic system for stereometric pattern recognition

Abstract: This paper describes a preliminary component for a symbotic system of visual and tactile senses. The concept of symbiotic system will play an important role in the realization of artificial intelligence. That is, visual and tactile sensors are the essential ones for both recognizing and handling any kind of object. For correct manipulation of objects it is necessary to know their spacial characteristics, as, for example, shape and position. Information on these characteristics of objects is picked up by human beings through visual and tactile senses. Before direct contact with the object, when the visual sense plays an exclusive role, decision (depending on the principal task) is based only on optical information. From the moment of touch, both optical and tactile information begin to be coordinated. At this moment the visual sense can be partly released for other tasks and the tactile sense may become dominant In picking up object information. It is clear that visual control usually has the dominant, but not absolute, role in the recognition and manipulation of objects. The system proposed here is a new kind of system wherein an obscure visual image can be identified as a clear Image by the coordination of visual and tactile senses. This system is quite effective when the object is cubic and inseparable from its circumstances, as in the case of the recognition and handling of objects in industrial use, under-water application, and so on.

Camera structure for positioning a photosensitive component

Abstract: A camera which has a structure for determining the position of a photosensitive component capable of responding to light travelling toward a film plane where film is located to be exposed. The photosensitive component normally has a position located directly in front of the film plane in the path of light travelling to the latter for responding to the light intensity so as to participate in the determination of the exposure of film. The photosensitive component is supported for movement between an operative position situated in this path of light an an inoperative position displaced beyond the latter path of light. In response to tripping of the shutter, a transmission operates during the initial part of the shutter-tripping operations, prior to actual opening of the shutter, to displace the photosensitive component to an inoperative position situated beyond the path of light travelling to the film plane, so that during actual exposure the photosensitive component will not block travel of light to the film which is exposed. When the shutter is closed the photosensitive component normally is in its operative position in front of the film plane in the path of light travelling toward the latter.

Improvements relating to teaching machines

Abstract: 1,219,167. Assembling components to circuit boards. PLESSEY CO. Ltd. 5 Aug., 1966 [28 May, 1965], No. 52707/68. Divided out of 22897/65. Heading B3A. [Also in Divisions B4-B5 and G4-G5] Apparatus for facilitating the mounting of electrical components on a component board comprises means for directing a beam of light through a perforated opaque plate to produce a spot of light on the component board. A semiautomatic slide projector 11 is loaded with a magazine containing the necessary perforated plates. Under control of an operator's switch 23 the magazine is advanced as each stage in assembly is reached and spots of light 13 are projected in selected positions on the component board 8 to indicate the particular holes 14 into which component leads are to be inserted. The magazine incorporates a contact adapted, in each position of the magazine, to light a corresponding lamp 10 on a storage compartment containing the required component. Back projection may be employed and the projector may be combined with apparatus for transmitting oral instructions.

Scanned audio-visual-response teaching system

Abstract: A PROGRAMMING COMPONENT GENERATES SELF-CLOCKING DIGITAL CONTROL SIGNALS AND RECORDS THEM ON ONE TRACK OF A MAGNETIC TAPE AND RECORDS ANALOG SIGNALS ON ANOTHER TRACK FOR PROVIDING AUDIO INFORMATION TO THE STUDENT. THE TAPE IS THEN UTILIZED IN A RESPONSE COMPONENT WHICH RESPONDS TO THE DIGITAL CONTROL SIGNALS TO PROVIDE AUTOMATIC OPERATIONS SUCH AS REMOTELY OPERATING A VISUAL DISPLAY DEVICE (I.E. A SLIDE PROJECTOR), FOR PRESENTING TO THE STUDENT MATERIAL IN LECTURE FORM AND/OR MULTIPLE-CHOICE PROBLEMS. THE RESPONSE COMPONENT INCLUDES ELECTRONIC LOGIC CIRCUITRY FOR DETERMINING THE CORRECTNESS OF THE STUDENT''S RESPONSE TO THE PROBLEMS. A PUSHBUTTON ASSEMBLY ON THE RESPONSE COMPONENT PERMITS THE STUDENT TO ADVANCE THE TAPE IN ACCORDANCE WITH THE TAPE RECORDED PROGRAM AND TO INDICATE HIS ANSWERS TO THE PROBLEMS. THE RESPONSE COMPONENT IS INTERCONNECTED WITH A DATA COLLECTION AND ANALYSIS COMPONENT FOR RECORDING THE STUDENT''S RESPONSES FOR SUBSEQUENT COMPUTER PROCESSING.

Component Scores for Reduced Rank, Transformed Solutions

Abstract: The data handling ability of modern computers has allowed behavioral scientists to express their concern for the complexity of hum.an behavior by collecting and analyzing many observations on each subject they study. This practice typically leads to the necessity of forming a reduced set of variables which in some sense retains much of the information of the more complex set. When the reduction is to be based on the internal structure of the set of variables rather than predictor criterion relationships, two models, characterized as factor analysis and components analysis, are available. The theory relating the observed variables and the reduced set differs for the two models, each having its attractive features. Under the factor analysis model the hypothetical factor scores must be estimated rather than being simple linear functions of the observed scores. Under the components model, the component variables are exact linear functions of the observed scores, but tend to be sample specific in terms of both person and variable sampling. Both estimation of factor scores and computation of component scores must be balanced against the use of factor analysis to assist in assigning variables to domains, with domain measurements usually defined by simple sums of all or a sample of the included variables, a procedure recently endorsed by Schweiker (1967). Schweiker's discussion notwithstanding, many scholars prefer to use the clearly defined, though sample bound, component scores in their research. In spite of Harris' (1964) clear statement of the difference between factor and component analysis, and Kaiser's (1962) presentation of a

Future trends in software development for real-time industrial automation

Abstract: "The_____is a desk-size, stored program computer. It has a medium-scale capacity and uses a single address system. The_____ has all the advantages of high component reliability, automatic operation, and ease of programming."

Insert element for the securing of component units to appliance rails

Abstract: 1,218,264 Anchored nuts INSTITUT FUR REGELUNGSTECHNIK 9 Oct, 1968, No 47770/68 Heading F2H A fixing element 3 insertable into a "U"- shaped rail 1, to which a component is to be secured by a threaded fastener passing through one of a row of holes 2 formed in one flange of the rail 1, is resiliently formed for a push fit into the rail 1 with a surface of the element 3 presenting a threaded bore 4 in alignment with one of the holes 2 and a surface abutting the rail to prevent rotation of the element 3 In an alternative embodiment the "U"-shaped fixing element has one limb extending to underlie the other limb which is apertured to receive a square or hexagonal nut, Figs, 3, 4 (not shown) In a further alternative a "U"-shaped plastic element has a threaded nut inserted in the apertured base connecting the limbs, the free ends of which limbs engage one of the flanges of the "U"-shaped rail, Figs 6-8 (not shown) In yet a further embodiment the insert fixing element is "T"-shaped with a nut inserted in an aperture the head of the "T" and lugs are formed at the ends of the head for engagement with holes adjacent each side of the hole in the "U"-shaped rail receiving the threaded fastener

Data handling system for handling data in compliance with normal and special descriptors

Abstract: A computing system in accordance with the present invention processes data in compliance with an instruction and descriptor specified by respective instructions, each descriptor specifying a group of data having at least one characteristic. Each characteristic is composed of an invariable component and, sometimes also, a variable component. Each of the normal and special descriptors includes characteristic information specifying the invariable component. Each of the data and the descriptors includes a tag for determining whether the word is a datum or a normal or a special descriptor. Each instruction including the address of a descriptor further includes, if any, variable information specifying the variable component. The control unit comprises structure for deriving the characteristic from a read-out descriptor, means responsive to the variable information, if any, for modifying the derived characteristic, and means for handling the data in compliance with the unmodified or the so modified characteristic.

Application of autocorrelation criteria to the analysis of mapped geologic data from the coal measures of central England

Abstract: It is proposed that the variance in mapped geologic data should be formally considered to be composed of three components which arise on different geographic scales. The three components (regional, local, and residual) should be defined solely in terms of the parameters of the sample data set. A two-step analysis is required to separate three components. Applying autocorrelation criteria, trend-surface analysis has been used, in the first step, to remove the residual component and, in the second step, to separate regional and local components from the resulting noise-free data. This procedure has made it possible to quantify local components in stratigraphic thickness data from the East Midlands coalfield (central England) which can be identified in terms of the known geology.

Multiple contact system for cam operated switches

Abstract: A multiple contact switching apparatus having a plurality of individual switching compartments independent of one another and a printed wiring board which is an integrated component of the apparatus and common to all switching compartments.

Processing apparatus for liquid saturated towel packets

Abstract: Apparatus for flattening, without wrinkling, sealed packets containing liquid saturated towels and for evenly distributing the liquid within the towel component and detecting leaks in said packets.

Free-standing audio-visual-response teaching system

Abstract: A PROGRAMMING COMPONENT GENERATES SELF-CLOCKING DIGITAL CONTROL SIGNALS AND RECORDS THEM ON ONE TRACK OF A MAGNETIC TAPE AND RECORDS ANALOG SIGNALS ON ANOTHER TRACK FOR PROVIDING AUDIO INFORMATION TO THE STUDENT. THE TAPE IS THEN UTILIZED IN A RESPONSE COMPONENT WHICH RESPONDS TO THE DIGITAL CONTROL SIGNALS TO PROVIDE AUTOMATIC OPERATIONS SUCH AS REMOTELY OPERATING ONE OR TWO VISUAL DISPLAY DEVICES (I.E., A SLIDE PROJECTOR), FOR PRESENTING TO THE STUDENT MATERIAL IN LECTURE FORM AND, OR, MULTIPLE-CHOICE PROBLEMS. THE RESPONSE COMPONENT INCLUDES ELECTRONIC LOGIC CIRCUITRY FOR DETERMING THE CORRCTNESS OF THE STUDENT''S RESPONSE TO THE PROBLEMS. A PUSHBOTTOM ASSEMBLY ON THE RESPONSE COMPONENT PERMITS THE STUDENT TO ADVANCE THE TAPE IN ACCORDANCE WITH THE TAPE RECORDED PROGRAM AND TO INDICATE HIS ANSWERS TO THE PROBLEMS. THE RESPONSE COMPONENT IS INTENDED FOR INDIVIDUALIZED INSTRUCTIONS WITH TOTALLING OF THE STUDENT''S RIGHT AND WRONG RESPONSES BEING DONE ON COUNTERS MOUNTED ON THE RESPONSE COMPONENT. D R A W I N G