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1.
Abstract

Thus far, certainly in English, most engineering history has been based on the lives of engineers or the chronologies of particular enterprises, with the two often woven together. Much of this work, as conventional biography or narrative history, has been well done, in many cases is a good read, and frequently is valuable as a basis for further study. But its preoccupation with who, when and where too often leaves unaddressed questions of how and why. Attempting to understand the intellectual and creative components of engineering's history, especially its early history for which written records are rare or nonexistent, is exceptionally difficult. In this short survey the possibilities of retrospective analysis are discussed, and some of the potential pitfalls are identified by considering the particular case of cathedral building. Over the last twenty or thirty years cathedral studies have generated more publications in the field of retrospective analysis, in this case structural analysis, than possibly any other. Whether or not very much has been learned about the history of the engineering of cathedrals, however, is a good question, and is part of what follows.  相似文献   
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The sequence of earthquakes that has affected Christchurch and Canterbury since September 2010 has caused damage to a great number of buildings of all construction types. Following post-event damage surveys performed between April 2011 and June 2011, an inventory of the stone masonry buildings in Christchurch and surrounding areas was carried out in order to assemble a database containing the characteristic features of the building stock, as a basis for studying the vulnerability factors that might have influenced the seismic performance of the stone masonry building stock during the Canterbury earthquake sequence. The damage suffered by unreinforced stone masonry buildings is reported and different types of observed failures are described using a specific survey procedure currently in use in Italy. The observed performance of seismic retrofit interventions applied to stone masonry buildings is also described, as an understanding of the seismic response of these interventions is of fundamental importance for assessing the utility of such strengthening techniques when applied to unreinforced stone masonry structures.  相似文献   
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In the examination of over 1300 burials from medieval Canterbury, one individual displayed a well-defined paracondylar process. Four other adults and two children presented with small tubercles at the same site. The aetiology of the trait is discussed with reference to cranial base variants and the so-called manifestation of an occipital vertebra.  相似文献   
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Linear enamel hypoplasia (LEH) is a macroscopically detectable band‐like dental defect, which represents localized decrease in enamel thickness caused by some form of disruption to a child's health. Such dental deformations are utilized in osteoarchaeological research as permanent markers of childhood physiological stress and have been extensively studied in numerous ancient human populations. However, currently there is no such data for medieval populations from Canterbury, UK. Here, LEH is examined in the context of age‐at‐death in human burials from the medieval St. Gregory's Priory and adjacent cemetery (11th–16th centuries), Canterbury, UK. The cemetery and Priory burials represented lower (n = 30) and higher status (n = 19) social groups, respectively. Linear enamel hypoplastic defects were counted on mandibular and maxillary anterior permanent teeth (n = 374). The age and sex of each skeleton were estimated using standard methods. Differences in LEH counts, age‐at‐death, and LEH formation ages were sought between the two social groups. Results indicate significantly greater frequencies of LEH in the Cemetery (mean = 17.6) compared to the Priory (mean = 7.9; t = −3.03, df = 46, p = 0.002). Adult age‐at‐death was also significantly lower in the Cemetery (mean = 39.8 years) compared to the Priory burials (mean = 44.1 years; t = 2.275, df = 47, p = 0.013). Hypoplasia formation ages differed significantly between the Priory (mean = 2.49 years) and Cemetery (mean = 3.22 years; t = 2.076; df = 47; p = 0.034) individuals. Results indicate that childhood stress may reflect adult mortality in this sample, and that the wellbeing of individuals from diverse social backgrounds can be successfully assessed using LEH analyses. Results are discussed in terms of the multifactorial etiology of LEH, as well as weaning‐related LEH formation. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   
7.
This study develops a motion-damage database (the Canterbury Earthquake Building Assessment, CEBA database) using surveyed information obtained from the Canterbury earthquake sequence. The database is then applied to derive fragility curves for non-residential buildings in New Zealand. The results indicate that unreinforced masonry buildings are the most vulnerable to damage, while the concrete shear wall buildings were found to be the most resilient. Discrepancies were found when comparing equivalent structures in New Zealand and the United States. Inherent difference of building characteristics between the two countries, significant ground failure, and accumulated damage from multiple events might explain the difference.  相似文献   
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The beautiful, well-known, but highly problematical, illuminated Carolingian MS. of the classical astronomical work called the Aratea or the Syntagma Arateorum, once owned by Isaac Vossius, has long been a prized possession of Leiden's University Library. Aratos of Soli, the Greek poet (about 315-270/23;9 B.C), was the author of the earliest version of this work, which he called the Phaenomena; Germanicus Caesar, Cicero and Festus Rufus Avienus produced Latin translations of it. Over the years an extensive literature has developed concerning the many problems raised by this MS. This literature is reviewed in detail in what follows and an attempt made, as it were, to clear the air ready for the further research which is shown to be necessary.  相似文献   
10.
The passage of the 1911 Parliament Bill ended the power of the British house of lords to veto any legislation passed by the house of commons. Henceforth, it could only delay the passage of a measure. The bill was carried by a mere 17 votes and friction between Unionists who took up die‐hard opposition, advised abstention, or actively sought to aid passage was bitter. The role which the archbishop of Canterbury played in canvassing the episcopal bench and helping to ensure final passage of the bill has not attracted much attention. Prior to the debate, the archbishop advised abstention but did not dissuade others from encouraging bishops to support the bill to help ensure passage. Before the vote, therefore, ‘die‐hards’ opposing any concession to the government, ‘hedgers’ advising Unionist abstention in the vote, and ‘rats’, Unionists willing to vote for the bill to ensure passage despite personal reservations, attempted to sound out and pressure the bishops in their direction. At the debate, the archbishop changed his mind and decided he must support the bill in order to avoid a greater crisis, and 12 other bishops joined him in the government lobby, helping to create the final majority of 17 by which the measure passed. Consideration of the role of the bishops adds to the understanding of the mechanics by which the bill passed, amidst considerable intrigue, pressure and acrimony, as well as further illuminating the extent and intensity of the divisions within the Unionist party at this critical moment.  相似文献   
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