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X波段低噪声行波管T-308的研制

真空电子技术 1964年第1期 6-14页

作者： L.D.Buchmiller R.W.Degrasse g.wade 李际霖

这篇报告叙述了X波段低噪声行波管的结构和工作特性。关于行波管的低噪声性能设计在本刊1963年第五期的译文中已经讨论过。这里只介绍一些实际的问题。研制中做成了五只管子,在8到11.6千兆赫频段中最终设计的噪声系数在10.5分贝以下。... 详细信息

这篇报告叙述了X波段低噪声行波管的结构和工作特性。关于行波管的低噪声性能设计在本刊1963年第五期的译文中已经讨论过。这里只介绍一些实际的问题。研制中做成了五只管子,在8到11.6千兆赫频段中最终设计的噪声系数在10.5分贝以下。在同样的频段内,增益大于30分贝。在8.3千兆赫测得的最低噪声系数为8分贝。

关键词：电子注电流螺旋节距电压图噪声系数低噪声行波管千兆赫电子枪聚焦极阳极电压第二阳极波段

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低噪声行波管的设计和计算方法

真空电子技术 1963年第5期 1-11页

作者： L.D.Buchmiller R.W.Degrasse g.wade 李际霖

本文提出了设计低噪声行波管的逐步计算法。这个方法能够迅速地计算与最小噪声系数条件相当的重要的设计参量。此法使用特殊的传输线式图,它能使计算简化并且有助于理解取得低噪声特性的原理。在第二个方法中利用这个图,对任意设计的电... 详细信息

本文提出了设计低噪声行波管的逐步计算法。这个方法能够迅速地计算与最小噪声系数条件相当的重要的设计参量。此法使用特殊的传输线式图,它能使计算简化并且有助于理解取得低噪声特性的原理。在第二个方法中利用这个图,对任意设计的电子枪能够确定噪声系数随着频率和管子参量的变化。主要是利用这些方法设计的两只X波段低噪声管,测得的噪声系数与理论确定的噪声系数相差在1.5分贝以内。

关键词：电子注电流静算低噪声行波管噪声系数

Topology Adaptation for Robust Ad Hoc Cyberphysical Networks under Puncture-Style Attacks

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Tsinghua Science and Technology 2015年第4期20卷 364-375页

作者： Ying Liu wade Trappe Department of Electrical and Computer Engineering Rutgers University

Many cyber physical networks will involve ad hoc deployments utilizing peer-to-peer communications. Examples include transportation systems where a group of moving cars communicate in order to avoid collisions, teams of robotic agents that work together in support of disaster recovery, and sensor networks deployed for health-care monitoring, monitoring the operation of a factory plant or to coordinate and actuate mechanisms for energy conservation in a building. These networks may face a variety of threats that puncture their connectivity and, should their performance degrade, the result could be catastrophic. Consider, for example, a vehicular ad hoc network where communication assists collision avoidance. In such a case, degradation could lead to vehicle accidents. Therefore, in order to overcome network performance degradations and the puncture of a network （such as blackhole or jamming） which is under attack, we propose an algorithm called the Fiedler Value Power Adjustment Topology Adaption （FVPATA）. FVPATA aims to dynamically adapt an ad hoc network＇s topology, even if the attacker varies its location and in the case of an interference-style attack by increasing the interference power. The algorithm utilizes the formulation from the graph theory which works with the Fiedler value to guide each node in wireless ad hoc network utilizing power adjustments to enhance the network＇s overall robustness. The advantage of the proposed mechanism is that it is a light-weight approach which is totally distributed, based on topology updates inherent in the Optimized Link State Routing （OLSR） protocol and, hence, it is unnecessary to introduce additional messages. Additionally, an algorithm was developed to resolve problems involving asymmetric links that arise in ad hoc networks by eliminating unnecessary energy consumption of Fiedler nodes. Simulation results using NS3 show that the proposed mechanism successfully decreases the average amount of hops used by 50% and the d

关键词： algebraic connectivity Fiedler value topology adaptation distributed power control ad hoc networks

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Invitation to psychology Carole wade, Carol Tavris.

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Invitation to psychology Carole wade, Carol Tavris.

2002年

作者： Carole wade Carol Tavris.

来源：畅想之星图书光盘版（南... 评论

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Invitation to psychology Carole Wade, Carol Tavris.

Multifaceted natural resources and green energy transformation for sustainable industrial development

2004年

作者： Carole wade Carol Tavris.

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geoscience Frontiers 2024年第6期15卷 367-385页

作者： Desire wade Atchike Munir Ahmad Qingyu Zhang School of Civil Engineering and Architecture Taizhou UniversityJiaojiangTaizhou 318000ZhejiangChina College of International Economics&Trade Ningbo University of Finance and EconomicsNingbo 315175ZhejiangChina Belt and RoadBulk Commodity Research Center Ningbo University of Finance and EconomicsNingbo 315175ZhejiangChina College of Management Research Institute of Business Analytics and Supply Chain ManagementShenzhen UniversityShenzhen 518060China

Climate change is the most phenomenal challenge to humanity,and its roots are intervened with unsustainable industrialization,exercising overexploitation of natural ***,the departure from non-renewable to renewables has become inevitable,though *** this respect,we explore how green energy transformation moderates the impacts of multifaceted natural resources on sustainable industrial development in the presence of other covariates involving technological progress,financial development,and economic *** compiled data from group of Seven(g-7)members over the 19952018 period and applied panel quantile regression(PQREg)to capture the effects across varying levels of quantiles of sustainable industrial *** revealed a positive role of natural gas rents,while coal,forest,and total natural resource rents contributed adverse implications for sustainable industrial ***,the green energy transformation proved to be the game changer because it not only directly induced sustainable industrial development improvement but also turned the unfavorable effects of coal,forest,and total natural resources into favorable ones by interacting with those multifaceted natural ***,financial,and economic progress supported sustainable industrial development in g-7 nations,particularly in members with existing middle and upper scales of sustainable industrial *** findings are robust enough when subjected to different estimation *** light of these outcomes,the interaction between green energy transformation and natural resource policy is inevitably critical to attaining natural resource efficiency for sustainable industrial ***,it is imperative to establish a close policy coordination between advancing green energy technology and allocating natural resource revenue to achieve sustainable development goals(SDgs),with a particular emphasis on SDg-7 and SDg-13。

关键词： Multifaceted natural resources green energy transformation Sustainable industrial development Technological progress g-7 countries

Patient-derived iPSC models of Friedreich ataxia:a new frontier for understanding disease mechanisms and therapeutic application

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Translational Neurodegeneration 2023年第1期12卷 258-280页

作者： Saumya Maheshwari gabriela Vilema-Enríquez Richard wade-Martins Department of Physiology Anatomy and GeneticsKavli Institute for Nanoscience DiscoveryUniversity of OxfordSouth Parks RoadOxford OX13QUUK

Friedreich ataxia(FRDA)is a rare genetic multisystem disorder caused by a pathological gAA trinucleotide repeat expansion in the FXN *** numerous drawbacks of historical cellular and rodent models of FRDA have caused difficulty in performing effective mechanistic and translational studies to investigate the *** recent discovery and subsequent development of induced pluripotent stem cell(iPSC)technology provides an exciting platform to enable enhanced disease modelling for studies of rare genetic *** iPSCs,researchers have created phenotypically relevant and previously inaccessible cellular models of *** models enable studies of the molecular mechanisms underlying gAA-induced pathology,as well as providing an exciting tool for the screening and testing of novel disease-modifying *** review explores how the use of iPSCs to study FRDA has developed over the past decade,as well as discussing the enormous therapeutic potentials of iPSC-derived models,their current limitations and their future direction within the field of FRDA research.

关键词： Friedreich ataxia Induced pluripotent stem cells Disease modelling Disease pathogenesis Drug development

Distributed Beamforming Based Wireless Power Transfer:Analysis and Realization

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Tsinghua Science and Technology 2020年第6期25卷 758-775页

作者： Xiaoran Fan Han Ding Yanyong Zhang.wade Trappe Zhu Han Rich Howard the Wireless Information Network Laboratory(WINLAB) Rutgers UniversityNew BrunswickNJ 08901USA the Department of Computer Science and Technology Xi'an Jiaotong UniversityXi'an 710049China the Department of Computer Science and Technology University of Science and Technology of ChinaHefei 230052China the Department of Electrical and Computer Engineering University of HoustonHoustonTX 77004USA.

This paper presents a new Wireless Power Transfer(WPT)approach by aligning the phases of a group of spatially distributed Radio Frequency(RF)transmitters(TX)at the target receiver(RX)*** approach can transfer energy over tens of meters and even to targets blocked by *** to popular beamforming based WPTs,our approach leads to a drastically different energy density distribution:the energy density at the target receiver is much higher than the energy density at other *** to this unique energy distribution pattern,our approach offers a safer WPT solution,which can be potentially scaled up to ship a higher level of energy over longer ***,we model the energy density distribution and prove that our proposed system can create a high energy peak exactly at the target *** we conduct detailed simulation studies to investigate how the actual energy distribution is impacted by various important system parameters,including number/topology of transmitters,transmitter antenna directionality,the distance between receiver and transmitters,and environmental ***,we build an actual prototype with 17 N210 and 4 B210 Universal Software Radio Peripheral(USRP)nodes,through which we validate the salient features and performance promises of the proposed system.

关键词： Wireless Power Transfer(WPT) distributed beamforming wireless network

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The 3-billion fossil question:How to automate classification of microfossils

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Artificial Intelligence in Geosciences

Artificial Intelligence in geosciences 2024年第1期5卷 137-145页

作者： Iver Martinsen David wade Benjamin Ricaud Fred godtliebsen UiT-The Arctic University of Norway TromsøNorway Equinor ASA StavangerNorway

Microfossil classification is an important discipline in subsurface exploration,for both oil&gas and Carbon Capture and Storage(CCS).The abundance and distribution of species found in sedimentary rocks provide valuable information about the age and depositional ***,the analysis is difficult and consuming,time-as it is based on manual work by human *** to automate this process face two key challenges:(1)the input data are very large-our dataset is projected to grow to 3 billion microfossils,and(2)there are not enough labeled data to use the standard procedure of training a deep learning *** propose an efficient pipeline for processing and grouping fossils by genus,or even species,from microscope slides using self-supervised *** we show how to efficiently extract crops from whole slide images by adapting previously trained object detection ***,we provide a comparison of a range of self-supervised learning methods to classify and identify microfossils from very few *** obtain excellent results with both convolutional neural networks and vision transformers fine-tuned by *** approach is fast and computationally light,providing a handy tool for geologists working with microfossils.

关键词： Self-supervised learning Palynology Deep learning Microfossils