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Low read rates are a general problem in library inventories. The purpose of this study is to examine the factors that contribute to the success of library inventory by means of a radio-frequency identification (RFID) inventory taker. The factors investigated were tag position, tag orientation, book thickness, tag density (related to thickness of a sequence of books) and position on the shelf.

A total of 210 books were placed in eight random permutations on three fixed book shelves. For each configuration, the RFID tags were read forty times. The resulting data were analysed by means of a generalized linear model, relating the combined contribution of tag position, tag orientation, book thickness and position on the bookshelf to the read rate.

The tags positioned directly next to the spine were always read, but those near the opening of the book (far from the spine and inventory reader) were not always read. Considering only books with tags near the opening, tag orientation and position on the shelf appeared not to be related to the read rate, while book thickness, thickness over three books and spine tag density appeared to have a small positive contribution to the read rate.

Low read rates during a library inventory can be prevented by placing the tags near the book spine – the other book specific factors (listed in the previous paragraph) are of little influence. When not scanned during a first sweep, repeated scanning can increase the read rate with 0.15.

This paper is one of the first to analyse the influence of tag location and book specific factors on the read rate of RFID tags in library books. The experimental approach sets an example for future work.

The aim of this paper is to provide an overview of current developments in the area of electronic books and libraries, and to describe an on‐going research project. Following a discussion of the key terminology used in this field, a number of issues will be investigated: what an electronic library is; how this concept has evolved during the last twenty years; what an electronic book is; and the relationship between an electronic library and an electronic book. As a result of our research we have defined a new concept, the Virtual Electronic Library, and its basic components: the hyper‐book and the visual‐book. These are two forms of electronic books which are built from different sources: paper books and electronic texts respectively. The environments in which such electronic books are produced will also be described.

Managing archives using robots rather than people can considerably enhance efficiency, while need to modify the structure of archive shelves or installation tracks. This paper aims to develop a fully automated archive access robot without modification.

First, a mobile navigation chassis and a motion algorithm based on laser ranging and map matching are created for autonomous movement to any of the archives’ locations. Second, because the existing archives are stacked vertically, the bionic manipulator is made to mimic the movement of manual access to the archives, and it is attached to the robot arm’s end to access different layers of archives. In addition, an industrial camera is used to complete barcode identification of the archives and acquire data on their location and thickness. Finally, the archive bin is created to store archives.

The robot can move, identify and access multiple archival copies placed on floors 1–6 and 2–5 cm thick autonomously without modifying the archival repository or using auxiliary devices.

The robot is currently able to navigate, identify and access files placed on different levels. In the future, the speed of the robot’s navigation and the movement of the robot arm could be even faster, while the level of visualization of the robot could be further improved and made more intelligent.

The archive access robot developed by the authors makes it possible for robots to manage archives instead of human, while being cheaper and easier to deploy than existing robots, and has already been tested in the archive storage room of the State Grid maintenance branch in Jiangsu, China, with better results.

The all-in-one archive access robot can replace existing robotic access solutions, promote intelligent management of the archive industry and the construction of unmanned archive repositories and provide ideas for the development of robots for accessing book-like materials.

This study explores the use of robots to identify and access archives without changing archive shelves or installing auxiliary devices. In this way, the robot can be quickly applied to the storage room to improve the efficiency of archive management.

Recent book production is examined from a library point of view, and estimates are made of the total cost of,and space required for, the annual UK book output. It is found that these measures increased rapidly through the 1960s but that since 1971 the cost has stayed roughly constant and the space required has declined. The present situation is found to be too unstable to be able to make even short term predictions of future output.

Mechanical properties such as tensile, yield, impact strengths, and development of residual stresses play an important role intooling applications. The objective of this paper is to investigate the effect of layer thickness – one of the influential process parameters in stereolithography (SL) process, on mechanical properties of SL components.

Test specimens are constructed as per the ASTM standards for different layer thicknesses in SL 5000 machine, using epoxy resin CIBA tool ^® SL5530, a high temperature resistant SL material that is suitable for rapid tooling applications. Tensile, yield and impact tests are carried out with suitable equipments. Residual stress is analysed using hole drill method.

The analysis reveals that when the layer thickness is smaller, the strength of the part is higher.

Conclusion of this research is drawn based on the analysis of the most widely used three layer thicknesses of 100, 125 and 150 μm. X‐ray diffraction or molecular resonance analysis may be useful to understand the reason for the variation in mechanical properties.

This experimental study provides the useful information to the SL machine users in the selection of layer thickness to manufacture rapid tools.

WORK STUDY still suffers from the unenviable reputation it gained in its early days when it was regarded as little more than a device, tinged with a touch of duress, for getting a greater output from the manual worker on the shop floor. This legacy of dislike still erupts occasionally in unexpected ways.

Over the last few decades, technological development has had a major impact on libraries. Nowadays many libraries use electronic support for operations such as acquiring and cataloguing material, searching, and retrieval. Information technology is an aid for both the librarian, in order to organise the material, and for the user in order to gain access to the broad storehouse. Information is still physically stored in the library. This represents an intermediate step in the process of library automation which leads to a completely electronic library, where a timely provision of selected materials to individuals, when and where they need them, is guaranteed. An electronic library houses different kinds of electronic information: in addition to text, there is an extensive use of multimedia collections, such as sound archives, video material, slide collections and so on. The electronic library is the result of complex changes which have affected and which still affect the publishing world (Barker 1994; Clement 1994; Raitt 1993).

This paper presents a model for an electronic book (hyper‐book). Hyper‐books are electronic books defined on the basis of the paper book metaphor. This metaphor guarantees ease of use and understanding, as the paper counterpart is a well known concept. The hyper‐book maintains many of the features of paper books, in terms of interface design and available tools (orientation, navigation, personalisation) and provides added‐value that exploits the technology underlying it, such as searching, links and history mechanisms. We give a formal definition of the hyper‐book model as a dynamic system. The hyper‐book model is defined in terms of structural and functional components. Further, how the system evolves under the effects of these functional components is presented. The structural components reflect the book subdivision in pages, and the page subdivision in elements such as text, figure etc. The functional aspect is indispensable for describing the use of a dynamic and interactive system. In particular, a number of operators, which represent reader services, allow the user to change the system ‘state’. This simple model is intuitive, general and easy to extend. The hyper‐book model has been implemented in a working system, and evaluated with a group of users. The evaluation has confirmed that the adoption of the book metaphor is very effective, as it guarantees ease of using and understanding the system. The use of the hyper‐book model for organising and presenting electronic documents could have a considerable impact in the context of electronic publishing. A system, based on this model, could have a large applicability and diffusion in several fields such as electronic libraries, thanks to its user‐friendly interface.

It is shown that to minimize access time to a library collection the items should be arranged so that the access point is distant from individual books in inverse order of their frequency of use. This is shown to lead to several interesting geometrical arrangements for library stacks. The library as a push‐down store would mean that after any book has been withdrawn it is replaced at the head of the shelf, all other books being pushed down to accommodate it. The frequency‐ordered arrangement leads to increases in access efficiency by as much as ten times. Finally an analogy is drawn between such a push‐down arrangement and and human memory as a push‐down store in the brain.