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Publication date: 1 April 1999

William T. Townsend and Jeffrey A. Guertin

This paper recommends an improved design methodology for the slave half of teleoperator systems based on the notion of master‐slave symmetry. Traditional slaves consist of a…

1410

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This paper recommends an improved design methodology for the slave half of teleoperator systems based on the notion of master‐slave symmetry. Traditional slaves consist of a conventional robot retrofitted with force‐torque sensors. The new methodology eliminates dependence on destabilizing force‐torque‐sensor schemes by augmenting existing master design methods with newly invented cable mechanisms. Design goals such as bandwidth, backdrivability, and force fidelity have been applied successfully to optimize design of the trajectory‐and‐force‐controllable Whole‐Arm Manipulation (WAM) robot. Although not yet used as the slave of a teleoperator system, the results from performance tests of the experimental WAM manipulator are promising. Finally, the authors suggest a new concept ‐ Whole‐Arm Haptics ‐ that is only possible with whole‐arm manipulation, where the user steers the kinematic redundancy directly. Whole‐Arm Haptics allow teleoperators to manipulate objects larger than the slave itself.

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Industrial Robot: An International Journal, vol. 26 no. 3
Type: Research Article
ISSN: 0143-991X

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Publication date: 1 March 2006

58

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Industrial Robot: An International Journal, vol. 33 no. 2
Type: Research Article
ISSN: 0143-991X

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50

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Industrial Robot: An International Journal, vol. 37 no. 6
Type: Research Article
ISSN: 0143-991X

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Publication date: 1 February 1982

Kenneth Pardey

The cardinal point to note here is that the development (and unfortunately the likely potential) of area policy is intimately related to the actual character of British social…

432

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The cardinal point to note here is that the development (and unfortunately the likely potential) of area policy is intimately related to the actual character of British social policy. Whilst area policy has been strongly influenced by Pigou's welfare economics, by the rise of scientific management in the delivery of social services (cf Jaques 1976; Whittington and Bellamy 1979), by the accompanying development of operational analyses and by the creation of social economics (see Pigou 1938; Sandford 1977), social policy continues to be enmeshed with the flavours of Benthamite utilitatianism and Social Darwinism (see, above all, the Beveridge Report 1942; Booth 1889; Rowntree 1922, 1946; Webb 1926). Consequently, for their entire history area policies have been coloured by the principles of a national minimum for the many and giving poorer areas a hand up, rather than a hand out. The preceived need to save money (C.S.E. State Apparatus and Expenditure Group 1979; Klein 1974) and the (supposed) ennobling effects of self help have been the twin marching orders for area policy for decades. Private industry is inadvertently called upon to plug the resulting gaps in public provision. The conjunction of a reluctant state and a meandering private sector has fashioned the decaying urban areas of today. Whilst a large degree of party politics and commitment has characterised the general debate over the removal of poverty (Holman 1973; MacGregor 1981), this has for the most part bypassed the ‘marginal’ poorer areas (cf Green forthcoming). Their inhabitants are not usually numerically significant enough to sway general, party policies (cf Boulding 1967) and the problems of most notably the inner cities has been underplayed.

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International Journal of Sociology and Social Policy, vol. 2 no. 2
Type: Research Article
ISSN: 0144-333X

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Publication date: 1 March 1914

With reference to the report of the Annual General Meeting of the Pure Food and Health Society of Great Britain, which was published in the February issue of THE BRITISH FOOD…

19

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With reference to the report of the Annual General Meeting of the Pure Food and Health Society of Great Britain, which was published in the February issue of THE BRITISH FOOD JOURNAL, and to the speech delivered by MR. GOSLIN upon the proper handling and purveying of meat, an article which has subsequently appeared in The Standard is of considerable interest. It is pointed out that no one who gives the matter serious consideration can approve of the present methods. “Many years ago Oxford made its protest against carcasses or joints being exposed in open‐fronted shops. It is just possible that when the powers that were objected to and forbade this proceeding they thought more of the æsthetics than the science of it, but they most certainly did a good thing when they took flesh foods away from the contamination of street dust and the variations of temperature that are dependent on every gust of wind or every moment of sunlight or shadow.”

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British Food Journal, vol. 16 no. 3
Type: Research Article
ISSN: 0007-070X

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Publication date: 1 February 1974

Frances Neel Cheney

Communications regarding this column should be addressed to Mrs. Cheney, Peabody Library School, Nashville, Term. 37203. Mrs. Cheney does not sell the books listed here. They are…

411

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Communications regarding this column should be addressed to Mrs. Cheney, Peabody Library School, Nashville, Term. 37203. Mrs. Cheney does not sell the books listed here. They are available through normal trade sources. Mrs. Cheney, being a member of the editorial board of Pierian Press, will not review Pierian Press reference books in this column. Descriptions of Pierian Press reference books will be included elsewhere in this publication.

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Reference Services Review, vol. 2 no. 2
Type: Research Article
ISSN: 0090-7324

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Publication date: 1 January 1989

Stuart Hannabuss

The management of children′s literature is a search for value andsuitability. Effective policies in library and educational work arebased firmly on knowledge of materials, and on…

1012

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The management of children′s literature is a search for value and suitability. Effective policies in library and educational work are based firmly on knowledge of materials, and on the bibliographical and critical frame within which the materials appear and might best be selected. Boundaries, like those between quality and popular books, and between children′s and adult materials, present important challenges for selection, and implicit in this process are professional acumen and judgement. Yet also there are attitudes and systems of values, which can powerfully influence selection on grounds of morality and good taste. To guard against undue subjectivity, the knowledge frame should acknowledge the relevance of social and experiential context for all reading materials, how readers think as well as how they read, and what explicit and implicit agendas the authors have. The good professional takes all these factors on board.

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Library Management, vol. 10 no. 1
Type: Research Article
ISSN: 0143-5124

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Publication date: 1 January 1913

We have observed in the reports of those engaged in the administration of the Acts several references to the practice of milking so that a portion of the milk is left in the udder…

16

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We have observed in the reports of those engaged in the administration of the Acts several references to the practice of milking so that a portion of the milk is left in the udder of the cow, this portion being removed subsequently and not included in the milk sent out to customers. The inspector for the southern division of the county of Northampton reports that on a sample of milk being found deficient in fat to the extent of 17 per cent., a further sample was taken at the time of milking when a milkman was found to be not properly “stripping” the cows. He was warned. The analyst for the county of Notts writes: “The first strippings obtained before the milk glands have been normally excited by the milking are very low in fat yet are “genuine” milk in the sense that nothing has been added to or taken from it. It is nonsense to talk of genuine milk in the sense that everything that comes from the udder of the cow is to be taken as genuine milk fit for sale.” In a case tried before the Recorder of Middlesbrough, one witness said that among some farmers it was a common practice not to “strip” cows until after the milk was sent away.

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British Food Journal, vol. 15 no. 1
Type: Research Article
ISSN: 0007-070X

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Publication date: 1 June 1930

The Library Association of Ireland issued last month the first number of An Leabharlann, their new official journal. The title, for those of us who do not speak the language of…

40

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The Library Association of Ireland issued last month the first number of An Leabharlann, their new official journal. The title, for those of us who do not speak the language of Erin, means The Library. It is an extremely interesting venture which will be followed by librarians on the mainland with sympathetic curiosity. In particular our readers would be interested in the first of a series of articles by Father Stephen J. Brown, S.J., on Book Selection. The worthy Father lectures on this subject at University College, Dublin, in the Library School. It is mainly concerned with what should not be selected, and deals in vigorous fashion with the menace of much of current published stuff. No doubt Father Brown will follow with something more constructive. Mr. T. E. Gay, Chairman of the Association, discusses the need for a survey of Irish libraries and their resources. We agree that it is necessary. The Net Books Agreement, the Council, Notes from the Provinces, and an article in Erse—which we honestly believe that most of our Irish friends can read—and an excellent broadcast talk on the Library and the Student by Miss Christina Keogh, the accomplished Librarian of the Irish Central Library, make up a quite attractive first number. A list of broadcast talks given by members of the Association is included.

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New Library World, vol. 33 no. 1
Type: Research Article
ISSN: 0307-4803

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Publication date: 1 February 1946

By the beginning of the war, Germany's over‐all self‐sufficiency in food had reached a level of approximately 83 per cent., on the peace‐time basis of 2,200—2,400 calories per…

53

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By the beginning of the war, Germany's over‐all self‐sufficiency in food had reached a level of approximately 83 per cent., on the peace‐time basis of 2,200—2,400 calories per person per day. In respect to some types of food, however, the situation was not satisfactory. For example, before the war she produced approximately 73 per cent. of fish requirements, 12 per cent. of corn, 50 per cent. of legumes, and 60 per cent. of fat within her own boundaries. The country could be fed at a reduced level by the produce raised within its own boundaries if food were perfectly controlled and evenly distributed. However, in practice, individual provinces were much less favourably situated in this respect. Western Germany, an area of relatively small and diversified farms, was critically dependent on the eastern provinces for its flour, grain, and potato supplies. It is clear that all German civilians could be fed at a uniform level of adequacy during a war only by control of the country's food supply at the national level and by the continued operation of the new transportation network of the country. For this reason the bombing of rail and inland water transportation facilities became such a serious threat to national uniformity in food distribution. Of the many kinds of centralised food processing industries known in the United States, only a few played an important role in the food supply of German civilians. The principal examples of these were grain milling, sugar production and refining, and the large bakeries of urban areas. The damage or destruction of these facilities, incidental to air attack on other industrial targets, seriously decreased their production capacity. Bombing destroyed the mills for processing 9 per cent. of the German rye output and 35 per cent. of the wheat output. Of the sugar refineries four plants producing 300,000 tons annually, were destroyed. This represents a 38 per cent. decrease in production of sugar. Similarly bombing of chemical plants was largely responsible for the decrease in the supply for fertiliser nitrogen. In 1939, 718,000 tons of fertiliser nitrogen were available, but by 1945 this had decreased to 140,000 tons. The significance of this destruction of facilities vital to the feeding of a country already on a border‐line diet is ominous. Reliable estimates indicate that aerial bombings destroyed 35 per cent. of Germany's total (approximately 460,000 square metres) cold storage capacity. The increased use of cold storage intensified their dependence on transportation and on the continuity of the power supply. Aerial attack, as a result, not only decreased usable cold storage space, but also seriously interfered with the operation of the remaining space by impeding shipments and interrupting sources of power. It was the constantly reiterated opinion of all food officials that the bomb destruction of the transportation network was the largest single factor contributing to the disruption of the food supply. Bulk shipments which had been carried on inland waterways were seriously impeded by the bombing of canals. Aerial attack against railway lines, bridges and terminal facilities caused widespread interruptions in service and destroyed rolling stock, freight en route and handling facilities at terminals. It is not possible at this time to state exactly in what measure the curtailment of the national diet contributed to the ultimate defeat of Germany. The evidence available indicates, however, that it was an important factor. There is in any case no doubt that strategic bombing is the major element contributing to the present shortage of food in Germany. It was not apparent that the Germans considered the vitamin and mineral content of food in determining the ration allowances of the people. Immediately with the beginning of the war, all the principal foods were rationed, so that the lack of recognition of the importance of the vitamin and mineral content of this ration actually was an additional point of vulnerability for the German diet. With a food economy so vulnerable it is not surprising to have found that the basic food rationing programme was abandoned early in 1945 when the destruction of transport and communications by the strategic air offensive attained major proportions. This necessitated falling back on the inadequate system of regional self‐supply. The destruction of large food stocks, processing plants and cold storage plants by bombing also contributed to the general deterioration of the German food supply. There is ample evidence for the conclusion that as a result of the strategic air offensive the nutritional demands for the continued health of the German people could not be met.

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British Food Journal, vol. 48 no. 2
Type: Research Article
ISSN: 0007-070X

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