Abstract: A communications network having a multiport data conference system is disclosed. The data conference system includes a multilevel processor arrangement with the lower level port processors communicating directly with data terminals and higher level processors controlling conference configuration. Data to be conferenced is put in a buffer memory which is shared by all levels of processors. The ports can be configured to be compatible with different type terminals that operate at different data speeds.

Abstract: The book examines the social and economic changes in south Fukien (Fujian) on the southeast coast of China during late imperial times. Faced with land shortages and overpopulation, the rural population of south Fukien turned to the sea in search of fresh opportunities to secure a livelihood. With the tacit support of local officials and the scholar gentry, the merchants played the pivotal role in long-distance trade, and the commercial networks they established spanned the entire China coast, making the port city of Amoy (Xiamen) a major centre for maritime trade. In the work, the author discusses four interrelated spheres of activity, namely, the traditional rural sector, the port cities, the coastal trade and the overseas trade links. He argues that the creative use of clan organizations was key to the growth of the Amoy network along the coast as well as overseas.

Abstract: 57 Disclosed is an arbiter comprised of two input ports and one output port; each input port has N input data lines, and the one output port has N output data lines; one circuit in the arbiter selects only one of the two input ports at a time; and another circuit in the arbiter passes characters from the selected input port to the output port. Each of the characters is represented by active logic signals on M-out-of-N data lines on the selected input port, with M being at least two and N being greater than M and greater than three.

Abstract: In this paper, the author describes and discusses the cargo-handling productivity in European seaports and the various factors which may influence it. He focuses on the effects of the ‘port revolution’ which began in the years of reconstruction following the end of the Second World War. This involved the introduction of new (and usually mechanized) cargo-handling techniques which die so much to change the traditional approach to shipping and port operations. He goes on to assess the importance of these developments for the Port of Antwerp, stressing particularly the organization of dock labour, the physical lay-out of the port, and the type and extent of use of technical equipment. He concludes that big differences exist in port productivity between continental European ports, due to the degree to which they have been affected by, and, more importantly perhaps, responded to, the changes of the past few decades.

Abstract: A telephone based control system comprises a central control console, a digital time division multiplexed (TDM) telephone system incuding a PBX matrix switch with signal ports adapted for direct connection to PBX primary port telset devices and to the central control console, and including primary port telsets adapted for connection to PBX secondary port devices, the control system further comprising secondary port control units, each connected to an associated one of the primary port telsets, for controlling the operation of one or more controlled devices located in proximity to the associated telsets.

Abstract: Implemented as a monolithic integrated circuit in CMOS technology, consisting of two two-transistor inverters cross-coupled to form a four-transistor flip-flop memory cell plus an A port NMOS gating transistor connected to one side of the flip-flop and a B port NMOS transistor connected to the other side of the flip-flop. Each A port and B port gating transistor is respectively independently gated by an A port word line and a B port word line addressing signals to conduct the stored contents of the flip-flop respectively to an A port bit line or a B port bit line. The data signal upon each A port bit line and B port bit line is respectively independently gated through respective NMOS transistors by respective A port column address line and B port column address line addressing signals to next be individually compared, in a complementary sense, to a set reference voltage in a respective A port sense amplifier and B port sense amplifier. Reading from either or both the A and B ports is totally independent without conflict. Bit lines are preferably pulled up to the supply voltage. The sense line inputs to the A and B port sense amplifiers are also preferably pulled up to the supply voltage. Writing is by application of equal simultaneous addressing signals on both A and B ports plus the write enabled gating of complementary write data signals, representing the binary quantity to be stored, to each side of the flip-flop memory cell.

Abstract: Circuitry for automatically configuring the operating system software of a computer is disclosed. The circuitry includes a revision port which generates a unique eight-bit code indicating the latest revision level of the main circuit board in the computer. Each time revisions are made in the board during manufacturing or each time a circuit board containing new revisions is put into the system by maintenance or service personnel, the eight-bit code generated by the port is changed. During the process of configuring the operating system software, the central processing unit reads the code generated by the port and uses the revision information to load and link software routines which will operate properly with the revised circuitry.

Abstract: A telephone conference bridge system comprising line interface circuits, bridge circuits, a tone transmitter/receiver and a microcomputer. The system is controlled by the microcomputer and can provide changeable levels of security such as (1) all ports open to receive incoming calls, (2) access only upon dialing a two-digit code and (3) all unused ports closed after a conference is established. Tone codes can also be used to activate a port occupancy detection system or to disconnect all callers from the bridge. One port is a "Chairman's Port" which is the only one able to make outgoing calls from the bridge or change the programming of security levels and codes, excepting that any TouchTone set on any port can implement security level (3) above with or without the chairman's port occupied.

Abstract: A multidisciplinary study of the structure and dynamics of a small (~78 ha) Australian marine embay ment (South West Arm of Port Hacking, New South Wales) was conducted during 1973–1978. Compatible data were obtained by studying processes in terms of the flow of carbon. The carbon budget developed in this paper represents an attempt at a synthesis of that information. The chemical and biological species contained in each of 10 compartments are described; as data allows, the average carbon mass within each compartment and the average flow rates between the compartments, with variances, are estimated. This information is used to piece together the distribution of carbon among the compartments and to ascertain the major flow paths of carbon into, within, and out of South West Arm.

Abstract: A common control for a community office (C.O.) switching system includes two interactive processors. One of these interactive processors is a call control processor which comprises the uppermost element in the control hierarchy. It is a stored program processor and its functions include: (i) control of call progression, (ii) marking paths through the matrix switch network, and translations. The other of these interactive processors is a port event processor. It is a construction of electronic logic circuitry known as "combinatorial logic". The port event processor operates on the principle of the combinatorial logic being sequentially coupled to every one of the port equipment positions over a 4 millisecond scan cycle. A pair of functional units of the port event processor provide the common control capability to sense or transmit supervisory events. These function units also interact with the call control processor in a way which permits the latter to function as the uppermost hierarchical element of the common control with substantially no burden of performing real-time tasks connected with port events. The interaction between the call control processor and the port event processor is effected through a port data store which provides an individual port data field per port equipment position. In general, each port data field is accessible to either of the interactive processors.

Abstract: An intake port assembly includes a top port assembly adapter, a port adapter, a seal mandrel, a spacer connector, and a lower port assembly adapter, all of which are threadedly connected together. A flow passage is disposed in the intake port assembly for flowing a well fluid from a well bore located about the intake port assembly to an apparatus located above the intake port assembly. The intake port assembly also includes an inflation passage for communicating an inflation fluid under pressure from an upper end of the intake port assembly to the lower end of the intake port assembly, and includes a bypass passage for communicating well fluid from the upper end of the intake port assembly to the lower end of the intake port assembly.

Abstract: Every planning of a port development or design of a new harbour is confronted with the unique physical properties and related problems to be solved. On the other hand every port can be defined as a link in the transport chain involved in the transfer of cargo from one medium of transport to another. Every port and its connected transhipment equipment and transport means are designed for the same basic purposed and involves a port consists of a number of systems as: a. a system of signals (buoys and navigation aids) to enable the ship to make a safe landfall b. an anchorage for use while a ship is waiting due to tidal conditions or congestion c. pilot system d. a system of towage e. the quays with cargo handling facilities f . undercover and open storage g. inland transport system etc. I t is possible, therefore, to construct an imaginary port which incorporates this features. Nevertheless to determine the capacity of a portsystem, it is necessary to schematize the reality by leaving out all non relevant aspects. A powerful method that can be used in the complicated port systems is offered by the discrete computer simulation. Generally speaking simulation is used to study the dynamic behaviour of the harboursystem by experimentations with a model of that system. In this way it is possible to obtain data which in statistical sense are relevant to the original system.

Abstract: to the Port Hacking Estuary Project.- History and Organization of the Port Hacking Estuary Project.- Geological Aspects of the Port Hacking Estuary.- Tidal Flushing and Vertical Diffusion in South West Arm, Port Hacking.- The Nutrient Cycle of an Intermittently Stratified Estuary.- Phytoplankton Distribution and Production in Port Hacking Estuary, and an Empirical Model for Estimating Daily Primary Production.- Zooplankton Community Structure and Succession in South West Arm, Port Hacking.- Seasonal Abundance, Geographical Distribution and Feeding Types of the Copepod Species Dominant in Port Hacking, New South Wales.- Some Ecological Effects of Rainfall on the Protoplankton of South West Arm.- Primary Production of Benthic Micro-organisms in South West Arm, Port Hacking, New South Wales.- Size-Specific Respiration Rate of Port Hacking Zooplankton.- Data Base for the Port Hacking Estuary Project: Parameters, Monitoring Procedure, and Management System.- A Carbon Budget for South West Arm, Port Hacking.- An Evaluation of the Dynamic Information for South West Arm, Port Hacking.- Ecosystem Modelling of South West Arm, Port Hacking.- An Evaluation of the Port Hacking Estuary Project from the Viewpoint of Applied Science.- Some Conclusions from the Port Hacking Estuary Project.

Abstract: The history of research into Port Hacking before the Port Hacking Estuary Project of 1973–1978 is summarized. The different steps of the organization of the Project are then described: project initiation, problem definition and refinement, staffing, facilities, field work. A list of publications resulting from the Project is appended.

Abstract: (1983). Port rivarly, co-operation, merger. Maritime Policy & Management: Vol. 10, No. 3, pp. 207-210.

Abstract: PURPOSE:To calculate exactly purchase prices and to simplify the processing of a register, by informing the corresponding No. of each shopping backet through the operation of a commodity selecting switch. CONSTITUTION:A customer coming to a store carries a shopping backet 2 assigned by a prescribed No., puts the backet 2 on a commodity extracting port 102 formed on a show case in which commodities 1A-1J are accommodated and connects a connection terminal 101 of the backet 2 with that of the show case 1. When a customer depressed a commodity selecting switch 2A, the No. of the shopping backet 2 is transmitted to a computer 3 and a signal to take out a commodity 1A is outputted, so that a selecting means is driven and the commodity 1A is extracted on the commodity extracting port 102. Subsequently the purchase price is calculated exactly and printed out by a receipt processing printer 5.