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1.
This paper presents the development of nanotechnology between 2000 and 2016 as reflected in the Web of Science papers, United States Patent and Trademark Office (USPTO), World International Property Organization (WIPO) patents, and National Science Foundation (NSF) awards, with a special reference to the United States (US), European Union (EU27), P.R. China, Japan, and South Korea. The field of nanotechnology is branching out into novel scientific and technology platforms, and it is increasingly difficult to separate foundational nanoscale components from divergent application areas. The average global growth rate has been sustained at about 15% for both papers and patents in the selected interval. The growth rates among regions are non-uniform. P.R. China and South Korea have increased faster in both the numbers and quality of their scientific publications, and currently P.R. China has the largest volume of nanotechnology publications and South Korea the most publications per capita in the field of nanotechnology. The US, EU27, and Japan are maintaining leadership in the upstream, better cited, conceptual components of nanotechnology research and development. 相似文献
2.
This article examines the relative positions with respect to nanotechnology research publications of the European Union (EU),
the United States (US), Japan, Germany, China, and three Asian Tiger nations (South Korea, Singapore, and Taiwan). The analysis
uses a dataset of nanotechnology publication records for the time period 1990 through 2006 (part year) extracted from the
Science Citation Index obtained through the Web of Science and was developed through a two-stage modularized Boolean approach.
The results show that although the EU and the US have the highest number of nanotechnology publications, China and other Asian
countries are increasing their publications rapidly, taking an ever-larger proportion of the total. When viewed in terms of
the quality-based measure of citations, Asian nanotechnology researchers also show growth in recent years. However, by such
citation measures, the US still maintains a strongly dominant position, followed by the EU. 相似文献
3.
The papers, book chapters, reviews, and patents by James S. Hyde in the bibliography of this document have been separated into EPR and MRI sections and within each section by topics. Within each topic, publications are listed chronologically. A brief summary is provided for each patent listed. A few publications and patents that do not fit this schema have been omitted. This list of publications is preceded by a scientific autobiography that focuses on selected topics that are judged to have been of most scientific importance. References to many of the publications and patents in the bibliography are made in the autobiography. 相似文献
4.
Worldwide nanotechnology development: a comparative study of USPTO,EPO, and JPO patents (1976–2004) 总被引:1,自引:0,他引:1
To assess worldwide development of nanotechnology, this paper compares the numbers and contents of nanotechnology patents
in the United States Patent and Trademark Office (USPTO), European Patent Office (EPO), and Japan Patent Office (JPO). It
uses the patent databases as indicators of nanotechnology trends via bibliographic analysis, content map analysis, and citation
network analysis on nanotechnology patents per country, institution, and technology field. The numbers of nanotechnology patents
published in USPTO and EPO have continued to increase quasi-exponentially since 1980, while those published in JPO stabilized
after 1993. Institutions and individuals located in the same region as a repository’s patent office have a higher contribution
to the nanotechnology patent publication in that repository (“home advantage” effect). The USPTO and EPO databases had similar high-productivity contributing countries and technology fields with large number of
patents, but quite different high-impact countries and technology fields after the average number of received cites. Bibliographic analysis on USPTO and EPO patents shows that researchers in the United States and Japan published larger numbers
of patents than other countries, and that their patents were more frequently cited by other patents. Nanotechnology patents
covered physics research topics in all three repositories. In addition, USPTO showed the broadest representation in coverage
in biomedical and electronics areas. The analysis of citations by technology field indicates that USPTO had a clear pattern
of knowledge diffusion from highly cited fields to less cited fields, while EPO showed knowledge exchange mainly occurred
among highly cited fields. 相似文献
5.
This article contributes to the growing study on the interactions between science and technology with China’s evidence in
the field of nanotechnology, based on the database of United States Patent and Trademark Office. The analysis is focused during
the period of 1991–2008, a rapid increasing period for the development of nanotechnology. Using the non-patent references
cited by patents, we first investigate the science–technology connections in the context of Chinese nanotechnology, especially
in institutional sectors and its application fields. Those patents, produced by academic researchers and directed towards
basic scientific knowledge, generally cite more scientific references with a higher proportion of self-citations. It is interesting
to find that patents contributed by collaborations between public organizations and corporations seldom contain scientific
references. Following an interesting path on matching the data of publications and patents, we establish the author-inventor
links in this emerging field. Author-inventors, who are co-active in publishing and patenting, are at the very top of the
most prolific and highly cited researchers. Finally, we employ social network analysis to explore the characteristics of scientific
and technological networks generated by co-authorship and co-invention data, to investigate the position and the role of patenting–publishing
scientists in these research networks. 相似文献
6.
Xin Li Daning Hu Yan Dang Hsinchun Chen Mihail C. Roco Catherine A. Larson Joyce Chan 《Journal of nanoparticle research》2009,11(3):529-552
Nanotechnology research has experienced rapid growth in recent years. Advances in information technology enable efficient
investigation of publications, their contents, and relationships for large sets of nanotechnology-related documents in order
to assess the status of the field. This paper presents the development of a new knowledge mapping system, called Nano Mapper
(), which integrates the analysis of nanotechnology patents and research grants into a Web-based platform. The Nano Mapper
system currently contains nanotechnology-related patents for 1976–2006 from the United States Patent and Trademark Office
(USPTO), European Patent Office (EPO), and Japan Patent Office (JPO), as well as grant documents from the U.S. National Science
Foundation (NSF) for the same time period. The system provides complex search functionalities, and makes available a set of
analysis and visualization tools (statistics, trend graphs, citation networks, and content maps) that can be applied to different
levels of analytical units (countries, institutions, technical fields) and for different time intervals. The paper shows important
nanotechnology patenting activities at USPTO for 2005–2006 identified through the Nano Mapper system. 相似文献
7.
The patent citation networks are described using critical node, core network, and network topological analysis. The main objective
is understanding of the knowledge transfer processes between technical fields, institutions and countries. This includes identifying
key influential players and subfields, the knowledge transfer patterns among them, and the overall knowledge transfer efficiency.
The proposed framework is applied to the field of nanoscale science and engineering (NSE), including the citation networks
of patent documents, submitting institutions, technology fields, and countries. The NSE patents were identified by keywords
“full-text” searching of patents at the United States Patent and Trademark Office (USPTO). The analysis shows that the United
States is the most important citation center in NSE research. The institution citation network illustrates a more efficient
knowledge transfer between institutions than a random network. The country citation network displays a knowledge transfer
capability as efficient as a random network. The technology field citation network and the patent document citation network
exhibit a␣less efficient knowledge diffusion capability than a random network. All four citation networks show a tendency
to form local citation clusters. 相似文献
8.
Longitudinal Patent Analysis for Nanoscale Science and Engineering: Country,Institution and Technology Field 总被引:13,自引:6,他引:7
Huang Zan Chen Hsinchun Yip Alan Ng Gavin Guo Fei Chen Zhi-Kai Roco Mihail C. 《Journal of nanoparticle research》2003,5(3-4):333-363
Nanoscale science and engineering (NSE) and related areas have seen rapid growth in recent years. The speed and scope of development in the field have made it essential for researchers to be informed on the progress across different laboratories, companies, industries and countries. In this project, we experimented with several analysis and visualization techniques on NSE-related United States patent documents to support various knowledge tasks. This paper presents results on the basic analysis of nanotechnology patents between 1976 and 2002, content map analysis and citation network analysis. The data have been obtained on individual countries, institutions and technology fields. The top 10 countries with the largest number of nanotechnology patents are the United States, Japan, France, the United Kingdom, Taiwan, Korea, the Netherlands, Switzerland, Italy and Australia. The fastest growth in the last 5 years has been in chemical and pharmaceutical fields, followed by semiconductor devices. The results demonstrate potential of information-based discovery and visualization technologies to capture knowledge regarding nanotechnology performance, transfer of knowledge and trends of development through analyzing the patent documents. 相似文献
9.
Ronald N. Kostoff Jesse A. Stump Dustin Johnson James S. Murday Clifford G.Y. Lau William M. Tolles 《Journal of nanoparticle research》2006,8(3-4):301-321
Text mining is the extraction of useful information from large volumes of text. A text mining analysis of the global open nanotechnology literature was performed. Records from the Science Citation Index (SCI)/Social SCI were analyzed to provide the infrastructure of the global nanotechnology literature (prolific authors/journals/institutions/countries, most cited authors/papers/journals) and the thematic structure (taxonomy) of the global nanotechnology literature, from a science perspective. Records from the Engineering Compendex (EC) were analyzed to provide a taxonomy from a technology perspective.
- The Far Eastern countries have expanded nanotechnology publication output dramatically in the past decade.
- The Peoples Republic of China ranks second to the USA (2004 results) in nanotechnology papers published in the SCI, and has increased its nanotechnology publication output by a factor of 21 in a decade.
- Of the six most prolific (publications) nanotechnology countries, the three from the Western group (USA, Germany, France) have about eight percent more nanotechnology publications (for 2004) than the three from the Far Eastern group (China, Japan, South Korea).
- While most of the high nanotechnology publication-producing countries are also high nanotechnology patent producers in the US Patent Office (as of 2003), China is a major exception. China ranks 20th as a nanotechnology patent-producing country in the US Patent Office.
10.
Yan Dang Yulei Zhang Li Fan Hsinchun Chen Mihail C. Roco 《Journal of nanoparticle research》2010,12(3):687-706
Nanotechnology patent applications published during 1991–2008 have been examined using the “title–abstract” keyword search
on esp@cenet “worldwide” database. The longitudinal evolution of the number of patent applications, their topics, and their respective
patent families have been evaluated for 15 national patent offices covering 98% of the total global activity. The patent offices
of the United States (USA), People’s Republic of China (PRC), Japan, and South Korea have published the largest number of
nanotechnology patent applications, and experienced significant but different growth rates after 2000. In most repositories,
the largest numbers of nanotechnology patent applications originated from their own countries/regions, indicating a significant
“home advantage.” The top applicant institutions are from different sectors in different countries (e.g., from industry in
the US and Canada patent offices, and from academe or government agencies at the PRC office). As compared to 2000, the year
before the establishment of the US National Nanotechnology Initiative (NNI), numerous new invention topics appeared in 2008,
in all 15 patent repositories. This is more pronounced in the USA and PRC. Patent families have increased among the 15 patent
offices, particularly after 2005. Overlapping patent applications increased from none in 1991 to about 4% in 2000 and to about
27% in 2008. The largest share of equivalent nanotechnology patent applications (1,258) between two repositories was identified
between the US and Japan patent offices. 相似文献
11.
A laser collimator is necessary for testing and verification of the pointing, acquisition and tracking (PAT) performance of inter-satellite laser communication terminals on the ground. The laser collimator must have a large clear aperture to fit the PAT performance testing system. The PAT subsystem has a large field of view for the acquisition and a high angular accuracy for the fine tracking. To resolve the conflict between large field of view and fine angular resolution, a large-aperture double-focus laser collimator is proposed and its optical design and mechanical structure are described. The collimator mainly consists of a primary lens, a reflector, a beam-splitting plate, a secondary lens, two compensating lenses, two imaging sensors and a laser. The primary lens directly forms the long focal length arm of the collimator. The combination of the primary lens and the secondary lens form the short focal length arm of the collimator. The collimator has an angular resolution <0.75 μrad and a 10 mrad field of view. For the collimator, the incident beam is focused on the two imaging sensors by its two arms, and the beam emitted from the laser is collimated and transmitted. The collimator is combined with an optical scanner and a fine beam deflector to test and verify the PAT performance of the inter-satellite laser communication terminal in a full physical manner. 相似文献
12.
复杂流场的超声-激光测量原理研究 总被引:1,自引:1,他引:0
本文从复杂流场—旋涡场参量的超声—激光测试方法的需要出发,论述了超声波产生的声相位光栅对激光产生的偏转效应.并研制了适用于产生空气超声相位光栅的大功率高频超声换能器、位移灵敏接收器、数字相位差测定仪等设备,采用了超声发射的匹配技术等,从而获得了明显的空气超声-激光偏转效应,并且测定了两光束的偏转时间差.本文的结果为利用超声-激光的空气声光偏转效应测量空气旋涡流场参量提供了实验依据. 相似文献
13.
A global event such as the COVID-19 crisis presents new, often unexpected responses that are fascinating to investigate from both scientific and social standpoints. Despite several documented similarities, the coronavirus pandemic is clearly distinct from the 1918 flu pandemic in terms of our exponentially increased, almost instantaneous ability to access/share information, offering an unprecedented opportunity to visualise rippling effects of global events across space and time. Personal devices provide “big data” on people’s movement, the environment and economic trends, while access to the unprecedented flurry in scientific publications and media posts provides a measure of the response of the educated world to the crisis. Most bibliometric (co-authorship, co-citation, or bibliographic coupling) analyses ignore the time dimension, but COVID-19 has made it possible to perform a detailed temporal investigation into the pandemic. Here, we report a comprehensive network analysis based on more than 20,000 published documents on viral epidemics, authored by over 75,000 individuals from 140 nations in the past one year of the crisis. Unlike the 1918 flu pandemic, access to published data over the past two decades enabled a comparison of publishing trends between the ongoing COVID-19 pandemic and those of the 2003 SARS epidemic to study changes in thematic foci and societal pressures dictating research over the course of a crisis. 相似文献
14.
Professor Stig Stenholm 《Contemporary Physics》2013,54(3):279-280
Current activity in the field of magnetic separation is reviewed in fundamental terms. The diverse subject matter is ordered into four main groupings whose characteristics are described in terms of numerous devices, both of present-day and historical significance. Existing as well as potential areas of scientific and commercial operation are discussed. The basic principles of recent major developments in high intensity magnetic Separation are closely examined. 相似文献
15.
In 1964, just a few years after the invention of the laser, a fluid velocity measurement based on the frequency shift of scattered light was made and the laser Doppler technique was born. This comprehensive review paper charts advances in the development and applications of laser Doppler vibrometry (LDV) since those first pioneering experiments. Consideration is first given to the challenges that continue to be posed by laser speckle. Scanning LDV is introduced and its significant influence in the field of experimental modal analysis described. Applications in structural health monitoring and MEMS serve to demonstrate LDV's applicability on structures of all sizes. Rotor vibrations and hearing are explored as examples of the classic applications. Applications in acoustics recognise the versatility of LDV as demonstrated by visualisation of sound fields. The paper concludes with thoughts on future developments, using examples of new multi-component and multi-channel instruments. 相似文献
16.
Digital marketing has been extensively researched and developed remarkably rapidly over the last decade. Within this field, hundreds of scientific publications and patents have been produced, but the accuracy of prediction technologies leaves much to be desired. Conversion prediction remains a problem for most marketing professionals. In this article, the authors, using a dataset containing landing pages content and their conversions, show that a detailed analysis of text readability is capable of predicting conversion rates. They identify specific features that directly affect conversion and show how marketing professionals can use the results of this work. In their experiments, the authors show that the applied machine learning approach can predict landing page conversion. They built five machine learning models. The accuracy of the built machine learning model using the SVM algorithm is promising for its implementation. Additionally, the interpretation of the results of this model was conducted using the SHAP package. Approximately 60% of purchases are made by nonmembers, and this paper may be suitable for the cold-start problem. 相似文献
17.
为了解世界声学研究总体产出和分布情况。运用文献计量学的方法,对SCI收录的31种期刊数据从文献语言、类型分布、发文时间趋势以及研究时间及空间分布等方面进行了分类统计分析。结果表明:声学文献的主要是以英文为主的Article类型文献,声学文献整体上呈直线增长的趋势;美国、英国、法国、中国、日本、加拿大以及德国是世界声学研究的主要产出国,且在时间序列上美国在声学上独具优势;进一步的机构分析显示了美国海军声学研究机构、俄罗斯科学院、英国南安普敦大学以及美国宾夕法尼亚大学在声学研究上具有绝对优势,而机构论文产出的时间分布得到俄罗斯科学院在近20年声学研究上独具优势。就我国而言香港理工大学、中国科学院以及上海交通大学等机构在声学研究上表现突出,但与国际重要研究机构仍然存在差距。 相似文献
18.
B. Hay 《Applied Acoustics》1975,8(4):299-314
The aim of this paper is to investigate which of the EEC member states use the equal energy rule for occupational noise exposure limits, and how many of these countries have taken legislative action on these scientific standards. Declaration of industrial diseases caused by noise, and medical surveillance are only mandatory in four EEC countries. Furthermore, limitation of both the level and number of high intensity impulses per day is virtually ignored in the EEC countries, apart from Belgium. For comparison purposes, the laws on the protection of workers' hearing, as they apply in Sweden, Norway, the USA, Canada and Australia, are also reviewed.Legislation on workers' compensation for occupational deafness is examined, a distinction being drawn between the adversary and clinical systems. The role being played by the trade unions in checking the effectiveness of hearing conservation measures in Canada, Germany and the USA is also discussed. 相似文献
19.
Ji Hyun Lee Kangho Ahn Sun Man Kim Ki Soo Jeon Jong Seong Lee Il Je Yu 《Journal of nanoparticle research》2012,14(9):1-10
In this study we present an overview of the research activities in nanotechnology for the period 2001?C2011 for six selected countries belonging to the Organization of Islamic cooperation (OIC). The selection has been made based on the research output of these countries. The countries are Iran, Turkey, Egypt, Malaysia, Saudi Arabia, and Pakistan. The factors considered are the number of publications, citations per paper, p-index, and collaborative research output. Iran with 7,795 publications and an annual growth rate of 41?% leads the group, followed by Turkey with 3,169 publications and an annual growth rate of 29?%. Turkey however, has a much better citation per paper (8.96), and p-index (63.34) as compared to Iran (4.59 and 54.36, respectively). We can classify the six countries into two categories. Those, that have a well coordinated national program in nanotechnology, namely, Iran, Malaysia, and Saudi Arabia and those that do not have any national program but are still showing a reasonable good activity in nanotechnology namely Turkey, Egypt, and Pakistan. A brief account of the initiatives taken by the six selected countries of OIC in the field of nanotechnology is also presented. 相似文献