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| 1 | Towards 10 Gb/s orthogonal frequency division multiplexing-based visible light communication using a GaN violet micro-LED显示文摘Visible light communication(VLC)is a promising solution to the increasing demands for wireless connectivity.Gallium nitride micro-sized light emitting diodes(micro-LEDs)are strong candidates for VLC due to their high bandwidths.Segmented violet micro-LEDs are reported in this work with electrical-to-optical bandwidths up to 655 MHz.An orthogonal frequency division multiplexing-based VLC system with adaptive bit and energy loading is demonstrated,and a data transmission rate of 11.95 Gb/s is achieved with a violet micro-LED,when the nonlinear distortion of the micro-LED is the dominant noise source of the VLC system.A record 7.91 Gb/s data transmission rate is reported below the forward error correction threshold using a single pixel of the segmented array when all the noise sources of the VLC system are present. | MOHAMED SUFYAN ISLIM RICARDO X.FERREIRA XIANGYU HE ENYUAN XIE STEFAN VIDEV SHAUN VIOLA SCOTT WATSON NIKOLAOS BAMIEDAKIS RICHARD V.PENTY IAN H.WHITE ANTHONY E.KELLY ERDAN GU HARALD HAAS MARTIN D.DAWSON | 2017 | Photonics Research2017，5，2： | 23 |
| 2 | Ultrafast Stretched-Pulse Fiber Laser Mode-Locked by Carbon Nanotubes显示文摘Ultrafast fiber sources having short pulses, broad bandwidth, high energy, and low amplitude fluctuations have widespread applications. Stretched-pulse fiber lasers, incorporating segments of normal and anomalous dispersion fibers, are a preferred means to generate such pulses. We realize a stretched-pulse fiber laser based on a nanotube saturable absorber, with 113 fs pulses, 33.5 nm spectral width and ~0.07% amplitude fluctuation, outperforming current nanotube-based designs. | Zhipei Sun Tawfique Hasan Fengqiu Wang Aleksey G.Rozhin Ian H.White Andrea C.Ferrari | 2010 | Nano Research2010，3，6： | 4 |
| 3 | An Iterative Pose Estimation Algorithm Based on Epipolar Geometry With Application to Multi-Target Tracking显示文摘This paper introduces a new algorithm for estimating the relative pose of a moving camera using consecutive frames of a video sequence. State-of-the-art algorithms for calculating the relative pose between two images use matching features to estimate the essential matrix. The essential matrix is then decomposed into the relative rotation and normalized translation between frames. To be robust to noise and feature match outliers, these methods generate a large number of essential matrix hypotheses from randomly selected minimal subsets of feature pairs, and then score these hypotheses on all feature pairs. Alternatively, the algorithm introduced in this paper calculates relative pose hypotheses by directly optimizing the rotation and normalized translation between frames, rather than calculating the essential matrix and then performing the decomposition. The resulting algorithm improves computation time by an order of magnitude. If an inertial measurement unit(IMU) is available, it is used to seed the optimizer, and in addition, we reuse the best hypothesis at each iteration to seed the optimizer thereby reducing the number of relative pose hypotheses that must be generated and scored. These advantages greatly speed up performance and enable the algorithm to run in real-time on low cost embedded hardware. We show application of our algorithm to visual multi-target tracking(MTT) in the presence of parallax and demonstrate its real-time performance on a 640 × 480 video sequence captured on a UAV. Video results are available at http://gffzz6712f30e645c4b03sx69owk9xkn0w6k0n.ffgz.tsg.suse.edu.cn/Hh K-p2 h XNn U. | Jacob H.White Randal W.Beard | 2020 | IEEE/CAA Journal of Automatica Sinica2020，7，4： | 2 |
| 4 | Transcription factors Sp1 and C/EBP regulate NRAMP1 gene expression显示文摘 | EtienneRicher Carole G.Campion BaselDabbas John H.White Mathieu F. M.Cellier | 2008 | FEBS Journal2008，，20： | 2 |
| 5 | Flexible optoelectronic devices based on metal halide perovskites显示文摘The unique physical and chemical properties of metal halide perovskites predestine the devices to achieve high performance in optoelectronic field.Among the numerous high qualities of perovskites,their different low-temperature synthesis methods and preparation processes make them impressive and popular materials for flexible optoelectronic devices.Mainstream perovskite devices,for instance,solar cells,photodetectors and light-emitting diodes,have been fabricated on flexible substrates and show outstanding flexibility as well as high performance.For soft wearable electronic systems,mechanical flexibility is the premier condition.Compared to common devices based on rigid substrates,flexible perovskite devices are more practical and see widespread applications in energy,detection,display,and other fields.This review summarizes the recent progress of flexible perovskite solar cells,photodetectors and light-emitting diodes.The design and fabrication of different high-performance flexible perovskite devices are introduced.Various low-dimensional perovskite materials and configurations for flexible perovskite devices are presented.In addition,the limitations and challenges for further application are also briefly discussed. | Hao Chen Hao Wang Jiang Wu Feng Wang Ting Zhang Yafei Wang Detao Liu Shibin Li Richard V.Penty Ian H.White | 2020 | Nano Research2020，13，8： | 2 |
| 6 | SONOS自持半导体存储器:记忆时间可靠性与低编程电压(英文)显示文摘降低编程电压 ,同时仍保持十年的数据记忆时间 ,一直是多晶硅 氮化硅 氧化硅 硅(SONOS)研究人员面临的一个巨大挑战。本文介绍SONOS可自持存储器器件设计和降低编程电压方面的进展。硅 氧化硅界面态的退化损害SONOS自持半导体存储器记忆时间的长期可靠性。首次应用在SONOS器件制作工艺上的双步高温氘退火技术 ,与传统的氢退火相比 ,显著提高了器件的耐久性能和记忆时间可靠性。我们研制成功 - 9伏 / + 10伏 (1毫秒 )可编程SONOS存储器 ,在摄氏 85度 ,一千万个擦除 /写入操作后 ,仍能确保十年的记忆时间。本文介绍编程电压降低方面的设计考虑 ,制作工艺的优化 ,描述实验过程和SONOS器件的测试 ,以及用于SONOS自持存储器动态性能测试的基于可编程门阵列的测量系统。 | 步建康 Marvin H.White | 2002 | 世界科技研究与发展2002，24，1： | 0 |
| 7 | 口腔乳头状瘤的形态定量学研究显示文摘选用VIDAS图象分析系统对人口腔颊部乳头状瘤的组织形态学结构进行了较为全面的和客观的测量分析,并与炎症、过度角化、白斑及鳞癌的测量结果进行了比较分析。通过对上皮基底层和棘层细胞的面积及胞核的面积、直径的测量分析,结果显示乳头状瘤的各项形态定量学检测指标均与白斑和鳞癌相差较远。而与炎症、过度角化最为接近。因而证实临床上所观察的乳头状瘤是一良性病变,与实验性癌变过程中出现的“乳头状瘤”。有着根本的不同。 | Frank H.White 金岩 Daniel CC Tam 杨连甲 郑秉源 | 1992 | 实用口腔医学杂志1992，8，4： | 0 |
| 8 | Secure optical communication using a quantum alarm显示文摘Optical fibre networks are advancing rapidly to meet growing traffic demands.Security issues,including attack management,have become increasingly important for optical communication networks because of the vulnerabilities associated with tapping light from optical fibre links.Physical layer security often requires restricting access to channels and periodic inspections of link performance.In this paper,we report how quantum communication techniques can be utilized to detect a physical layer attack.We present an efficient method for monitoring the physical layer security of a high-data-rate classical optical communication network using a modulated continuous-variable quantum signal.We describe the theoretical and experimental underpinnings of this monitoring system and the monitoring accuracy for different monitored parameters.We analyse its performance for both unamplified and amplified optical links.The technique represents a novel approach for applying quantum signal processing to practical optical communication networks and compares well with classical monitoring methods.We conclude by discussing the challenges facing its practical application,its differences with respect to existing quantum key distribution methods,and its usage in future secure optical transport network planning. | Yupeng Gong Rupesh Kumar Adrian Wonfor Shengjun Ren Richard V.Penty Ian H.White | 2020 | Light(Science & Applications)2020，9，1： | 0 |
| 9 | Lophozonia tree cavities used for nesting by Slender-billed Parakeets(Enicognathus leptorhynchus)in the central valley of southern Chile:a potentially vanishing keystone resource显示文摘Background: The Slender-billed Parakeet(Enicognathus leptorhynchus) is a psittacine endemic to southern Chile and an obligate secondary cavity-nester. In the central valley of southern Chile, most(94%) of the known Slender-billed Parakeet nests have occurred in large, mature southern beech(Lophozonia obliqua) trees(locally known as 'pellines'). As relicts of the original old-growth forests of southern Chile, most pellines have been lost due to extensive landclearing throughout the region, potentially threatening long-term persistence of the Slender-billed Parakeet.Methods: We conducted our study in the central valley of southern Chile, near the city of Osorno during three consecutive nesting seasons(November–January, 2008–2011). Nest trees used by Slender-billed Parakeets were located by direct observation of parakeet activities and through interviews with local residents, some of whom were former parrot nest poachers. Nest cavities were accessed, inspected and measured using single-rope climbing techniques. We report means, standard errors, 95% confidence intervals and ranges for 11 cavity-related variables. We also report clutch sizes encountered in active nests, and age estimates of nest trees based on known growth rates of Lophozonia trees in southern Chile. Linear regressions were used to evaluate potential relationships between cavity-related variables and clutch size.Results: We located and measured 38 Lophozonia tree cavities used for nesting by Slender-billed Parakeets. Compared to those used by other psittacines, nest trees were relatively large, averaging 30.4 breast height of 134.5 ter ± 1.1 m in height with a mean diameter at ± 4.7 cm. Based on estimated annual diameincrement, ages of nest trees ranged from approximately 209–485 years. Nest cavities entrances averaged 12.5 ± 0.9 m in height above ground level. Cavity entrance widths averaged 51.0 ± 13.3 cm(vertical) by 11.5 ± 0.7 cm(horizontal). Cavity entrance orientations were apparently random, with no directional preferences detected. Nest cavities were also relatively large, with a mean internal diameter of 39.6 psittacines of this size(ca. 280± 2.4 cm and mean depth of 90.3 –300 g) and broods of up to seven± 24.2 cm. Clutch sizes(2–9) were unusually large for well-developed nestlings were observed.Conclusions: We found that the deep and spacious cavities provided by pellines facilitate successful rearing of large broods, thereby maximizing productivity and fitness. The existence of pellines has apparently allowed Slender-billed Parakeets to adapt successfully to a wholesale loss of ancestral habitat to anthropogenic modifications. Immediate and strategic conservation measures, such as protection of existing pellines and the regeneration and recruitment of additional ones, are recommended for ensuring the survival of Slender-billed Parakeet populations throughout the central valley of southern Chile. | Thomas H.White Jr. Jaime E.Jiménez | 2017 | Chinese Birds2017，，1： | 0 |
| 10 | Experiential Learning in Secondary Education Chemistry Courses:A Significant Life Experiences Framework显示文摘Significant life experiences(SLE),a framework first put forward by Thomas Tanner,is a well-known model for understanding attitudes and perceptions about the environment as ascertained through environmental education(EE)programs.The SLE framework posits that early positive experiences in the environment are strongly correlated with later pro-environmental attitudes and behaviors in adulthood.According to the model,these early experiences facilitate this change through“experiential”learning,as opposed to formal learning experiences in a classroom,or even informal learning.While the SLE framework is often used within the EE literature,it is rarely used to model behavior and learning in the classroom setting.Here,we present a new use of the theory to model experiential learning in a high school chemistry course.We present evidence that a new model of SLE being used experimentally by faculty at a high school in New Mexico has led to significant learning gains among students.Specifically,we find evidence that low-achieving students may particularly benefit from this new model of teaching chemistry in the secondary education setting through the“hands-on”process of manufacturing and distributing methamphetamine(N-methyl amphetamine).While this study cohort is small,the authors believe that the findings presented herein may demonstrate the value of SLE and experiential learning within the broader science,technology,engineering,and math(STEM)education field(theory)and pedagogy(practice). | Bradley C.Allf Jesse B.Pinkman Walter H.White | 2020 | US-China Education Review(A)2020，10，4： | 0 |
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