{"title":"THE PHYSICS OF AUTOMATIC LETTER SORTING","authors":"R. Paris","doi":"10.1088/0305-4624/19/4/301","DOIUrl":"https://doi.org/10.1088/0305-4624/19/4/301","url":null,"abstract":"The astronomical number of letters handled by the Post Office makes automatic sorting technology essential. Key roles are played by the postcode system and an ink-jet printer that has been developed to use phosphorescent inks.","PeriodicalId":368078,"journal":{"name":"Physics in Technology","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115017785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Batteries - past, present and future","authors":"Graham Cove","doi":"10.1088/0305-4624/19/4/302","DOIUrl":"https://doi.org/10.1088/0305-4624/19/4/302","url":null,"abstract":"Over the past few years, advances in battery technology have not always been obvious to users because of the vast numbers of existing battery applications that constrain the external dimensions of a battery and preclude any radical changes. This article covers some of the important stages in the history of battery evolution, explains the major systems available and looks to future trends.","PeriodicalId":368078,"journal":{"name":"Physics in Technology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114885421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Digital optics, smart interconnect or optical logic? Part 2","authors":"J. Midwinter","doi":"10.1088/0305-4624/19/4/304","DOIUrl":"https://doi.org/10.1088/0305-4624/19/4/304","url":null,"abstract":"How can the optical devices described in part 1 of this article (May issue pp 101-8) be applied? Part 2 outlines the new architectures and systems which hold out such promise for optical computing and telecommunications.","PeriodicalId":368078,"journal":{"name":"Physics in Technology","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126390423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"To fly like a bird","authors":"M. V. Cook","doi":"10.1088/0305-4624/19/3/301","DOIUrl":"https://doi.org/10.1088/0305-4624/19/3/301","url":null,"abstract":"An exposition on the more critical aspects of the stability and control of the hang-glider and their dependence on the aerodynamic characteristics of the flexible fabric wing.","PeriodicalId":368078,"journal":{"name":"Physics in Technology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134224970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Colour LCD TV","authors":"J. White","doi":"10.1088/0305-4624/19/3/I01","DOIUrl":"https://doi.org/10.1088/0305-4624/19/3/I01","url":null,"abstract":"Significant advances in liquid-crystal technology have reached the state where flat portable TVs are a commercial reality. Technical developments, involving thin-film transistor active-matrix displays and more recently ferroelectric liquid crystals will ensure this rapid growth continues","PeriodicalId":368078,"journal":{"name":"Physics in Technology","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124682912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"High-temperature heat-pump fluids","authors":"M. Bertinat","doi":"10.1088/0305-4624/19/3/I03","DOIUrl":"https://doi.org/10.1088/0305-4624/19/3/I03","url":null,"abstract":"Heat pumps could be immensely useful in many industrial processes, but standard working fluids are unsuitable for the high temperatures involved. The ideal high-temperature heat-pump fluid should have a high (but not too high) critical temperature, a moderate critical pressure ( approximately=5.0 MPa) and a low (but not too low) boiling point. There are many organic fluids that do meet the above thermodynamic criteria The author's list of 250 contained dozens of them including many of the common laboratory solvents such as ethanol, ether and especially acetone. Unfortunately most of them are highly flammable. The ideal work fluid for high-temperature heat pumps will probably always remain elusive and water, despite its drawbacks will continue to be the best choice in most applications","PeriodicalId":368078,"journal":{"name":"Physics in Technology","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127824854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Towards an optical computer","authors":"A. Walker","doi":"10.1088/0305-4624/19/3/406","DOIUrl":"https://doi.org/10.1088/0305-4624/19/3/406","url":null,"abstract":"Report on Optical techniques for information processing/Nonlinear optical information processing, IEE/IoP Quantum Electronics Group, 25 November 1987, London","PeriodicalId":368078,"journal":{"name":"Physics in Technology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128036598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Research at Pilkington","authors":"L. Pilkington","doi":"10.1088/0305-4624/19/3/305","DOIUrl":"https://doi.org/10.1088/0305-4624/19/3/305","url":null,"abstract":"Pilkington (Brothers) Ltd holds a special place in the history of British glassmaking. This account of its efforts in R and D, from the 1840s to the 1960s, helps to explain how that prestigious position was achieved.","PeriodicalId":368078,"journal":{"name":"Physics in Technology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131736261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Lasers for microelectronics","authors":"K. Vanner","doi":"10.1088/0305-4624/19/3/407","DOIUrl":"https://doi.org/10.1088/0305-4624/19/3/407","url":null,"abstract":"","PeriodicalId":368078,"journal":{"name":"Physics in Technology","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122697700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Digital optics, smart interconnect or optical logic? I","authors":"J. Midwinter","doi":"10.1088/0305-4624/19/3/I02","DOIUrl":"https://doi.org/10.1088/0305-4624/19/3/I02","url":null,"abstract":"The article examines the implications of using light for the wiring functions within electronics processors, starting from the simple point-to-point fibre interconnect and following through to the 'all optical' computer and optical 'neural network'. In so doing, the strengths and weaknesses of optics are highlighted and some of the problems and opportunities established","PeriodicalId":368078,"journal":{"name":"Physics in Technology","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131187166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
求助内容：
应助结果提醒方式：