Search

Your search keyword '"Lu, Zhijian"' showing total 45 results
Start Over Author "Lu, Zhijian" Search Limiters Full Text
45 results on '"Lu, Zhijian"'

1. Electrical control of spin mixing conductance in a Y$_3$Fe$_5$O$_{12}$/Platinum bilayer

Author

Wang, Ledong, Lu, Zhijian, Xue, Jianshu, Shi, Peng, Tian, Yufeng, Chen, Yanxue, Yan, Shishen, Bai, Lihui, and Harder, Michael

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science
Abstract

We report a tunable spin mixing conductance, up to $\pm 22\%$, in a Y${}_{3}$Fe${}_{5}$O${}_{12}$/Platinum (YIG/Pt) bilayer.This control is achieved by applying a gate voltage with an ionic gate technique, which exhibits a gate-dependent ferromagnetic resonance line width. Furthermore, we observed a gate-dependent spin pumping and spin Hall angle in the Pt layer, which is also tunable up to $\pm$ 13.6\%. This work experimentally demonstrates spin current control through spin pumping and a gate voltage in a YIG/Pt bilayer, demonstrating the crucial role of the interfacial charge density for the spin transport properties in magnetic insulator/heavy metal bilayers., Comment: 6 pages, 4 figures

Published
2019
Full Text
View/download PDF

3. From Screening to Targeted Degradation: Strategies for the Discovery and Optimization of Small Molecule Ligands for PCSK9

Author

Petrilli, Whitney L., Adam, Gregory C., Erdmann, Roman S., Abeywickrema, Pravien, Agnani, Vijayalakshmi, Ai, Xi, Baysarowich, Jen, Byrne, Noel, Caldwell, John P., Chang, Wonsuk, DiNunzio, Edward, Feng, Zhe, Ford, Rachael, Ha, Sookhee, Huang, Yongcheng, Hubbard, Brian, Johnston, Jennifer M., Kavana, Michael, Lisnock, Jean-Marie, Liang, Rui, Lu, Jun, Lu, Zhijian, Meng, Juncai, Orth, Peter, Palyha, Oksana, Parthasarathy, Gopal, Salowe, Scott P., Sharma, Sujata, Shipman, Jennifer, Soisson, Stephen M., Strack, Alison M., Youm, Hyewon, Zhao, Kake, Zink, Deborah L., Zokian, Hratch, Addona, George H., Akinsanya, Karen, Tata, James R., Xiong, Yusheng, and Imbriglio, Jason E.

Published
2020
Full Text
View/download PDF

8. A pseudo Karnaugh mapping approach for datasets imbalance

Author

Lu Zhijian, Liu Gang, and Liao Rongwen

Subjects
Environmental sciences, GE1-350
Abstract

The problem of dataset imbalance has raised a wide concern in many machine learning areas, but not in non-intrusive load monitoring, or load disaggregation. In this study, a pictorial evaluation method is proposed to representation the imbalance class distribution in datasets. We colored a Karnaugh maps according to the quantities of different variables combination to offer a visual impact to the whole dataset. After utilizing this method on a public dataset and its testing result, a clear imbalanced abundance in the dataset and an exciting performance have been found. A preliminary Python package to realize this mapping method has been uploaded on GitHuba.

Published
2021
Full Text
View/download PDF

10. Dielectric Surface Flashover under Long-Term Repetitive Microsecond Pulses in Compressed Gas Environment

Author

Wang Zhengwen, C. Liu, Tianyu Lin, Lu Zhijian, Wei Peng, Yongpeng Zhang, and Lanjun Yang

Subjects
Technology, Materials science, Insulator (electricity), 02 engineering and technology, Dielectric, Radiation, 01 natural sciences, Article, accumulation effect, 0103 physical sciences, Empirical formula, Arc flash, General Materials Science, microsecond repetitive pulses, flashover characteristics, Composite material, stage insulator, 010302 applied physics, Microscopy, QC120-168.85, QH201-278.5, 021001 nanoscience & nanotechnology, Engineering (General). Civil engineering (General), TK1-9971, flashover path, Microsecond, Descriptive and experimental mechanics, Electrode, Electrical engineering. Electronics. Nuclear engineering, TA1-2040, 0210 nano-technology, Microwave
Abstract

As a key component of a high-power microwave (HPM) system, a multi-gap gas switch (MGS) has recently developed insulation failure due to surface flashover. Although design criteria for surface insulation have been put forward, it is still not clear how the insulation in this case deteriorated under long-term repetitive microsecond pulses (RMPs). In this paper, flashover experiments under RMPs were carried out on various dielectric surfaces between parallel-plane electrodes in SF6 and air atmospheres, respectively. Based on tests of the surface insulation lifetime (SIL), an empirical formula for SIL prediction is proposed with variations of insulator work coefficient λ, which is a more suitable parameter to characterize SIL under RMPs. Due of the accumulation effect, the relationship between E/p and ptdelay varies with the pulse repetitive frequency (PRF) and SIL recovery capability decreases with an increase in PRF and surface deterioration is exacerbated during successive flashovers. It is concluded that the flashover path plays a crucial role in surface insulation performance under RMPs due to the photoemission induced by ultraviolet (UV) radiation, signifying the necessity of reducing surface paths in future designs as well as the improvement of surface insulation.

Published
2021

12. From Screening to Targeted Degradation: Strategies for the Discovery and Optimization of Small Molecule Ligands for PCSK9

Author

Petrilli, Whitney L., primary, Adam, Gregory C., additional, Erdmann, Roman S., additional, Abeywickrema, Pravien, additional, Agnani, Vijayalakshmi, additional, Ai, Xi, additional, Baysarowich, Jen, additional, Byrne, Noel, additional, Caldwell, John P., additional, Chang, Wonsuk, additional, DiNunzio, Edward, additional, Feng, Zhe, additional, Ford, Rachael, additional, Ha, Sookhee, additional, Huang, Yongcheng, additional, Hubbard, Brian, additional, Johnston, Jennifer M., additional, Kavana, Michael, additional, Lisnock, Jean-Marie, additional, Liang, Rui, additional, Lu, Jun, additional, Lu, Zhijian, additional, Meng, Juncai, additional, Orth, Peter, additional, Palyha, Oksana, additional, Parthasarathy, Gopal, additional, Salowe, Scott P., additional, Sharma, Sujata, additional, Shipman, Jennifer, additional, Soisson, Stephen M., additional, Strack, AlisonM., additional, Youm, Hyewon, additional, Zhao, Kake, additional, Zink, Deborah L., additional, Zokian, Hratch, additional, Addona, George H., additional, Akinsanya, Karen, additional, Tata, James R., additional, Xiong, Yusheng, additional, and Imbriglio, Jason E., additional

Published
2021
Full Text
View/download PDF

14. High yielding self-aligned contact process for a 0.150-[micro]m, DRAM technology

Author

Rupp, Thomas S., Dobuzinsky, David, Lu, Zhijian, Sardesai, Viraj Y., Liu, Hang-Yip, Maldei, Michael, Faltermeier, John, and Gambino, Jeff

Subjects
Dynamic random access memory -- Design and construction, Circuit design -- Analysis, Semiconductors -- Etching, Business, Computers, Electronics, Electronics and electrical industries
Abstract

This paper describes improvements in the self-aligned contact process for 0.150 [micro]m and 0.175 [micro]m technology generations. Using a dynamic random access memory cell layout, we show that self-aligned contacts can be formed at 0.175 [micro]m ground rules and beyond by using a [C.sub.4.][F.sub.8]-C[H.sub.2][F.sub.2] chemistry. With the improved etch selectivity, gate cap nitride thickness can be reduced, resulting in a smaller aspect ratio for the gate etch, borophosphosilicate glass fill, and contact etch. With a rectangular contact, the area can be increased and the process windows for lithography and etch are improved. The process window for lithography increases by up to 40%, the aspect ratio for the etch and the contact fill is less, and the sensitivity to misalignment is reduced. The combination of rectangular contacts and [C.sub.4][F.sub.8]-C[H.sub.2][F.sub.2] chemistry greatly enhances the product yield. Index Terms--0.15-[micro]m technology, borderless contact, contact shape, DRAM, etch stop, reactive ion etching (RIE), selective etching, self-aligned contact (SAC).

Published
2002

20. Experimental demonstration of non-line-of-sight visible light communication with different reflecting materials using a GaN-based micro-LED and modified IEEE 802.11ac

Author

Lu, Zhijian, primary, Tian, Pengfei, additional, Fu, Houqiang, additional, Montes, Jossue, additional, Huang, Xuanqi, additional, Chen, Hong, additional, Zhang, Xiaodong, additional, Liu, Xiaoyan, additional, Liu, Ran, additional, Zheng, Lirong, additional, Zhou, Xiaolin, additional, Gu, Erdan, additional, Liu, Yi, additional, and Zhao, Yuji, additional

Published
2018
Full Text
View/download PDF

28. Integrated CMOS edge voltage quantizer for detection of low-frequency simple waveforms

Author

Zhou Jianjun, Pan Xingpeng, and Lu Zhijian

Subjects
business.industry, Computer science, Electrical engineering, Low frequency, Condensed Matter Physics, Electronic, Optical and Magnetic Materials, CMOS, Simple (abstract algebra), Electronic engineering, Waveform, Enhanced Data Rates for GSM Evolution, Electrical and Electronic Engineering, business, Voltage
Published
2015

29. Optical Cavity Effects in InGaN Micro-Light-Emitting Diodes With Metallic Coating.

Author

Chen, Hong, Fu, Houqiang, Huang, Xuanqi, Lu, Zhijian, Zhang, Xiaodong, Montes, Jossue, and Zhao, Yuji

Abstract

We implement finite difference method (FDM) to calculate the optical cavity effects in InGaN micro-light-emitting diodes (LEDs) with metallic coating. The dispersion relation, mode profile, energy density W of electromagnetic field, cavity quality factor Q, and effective mode area Ae\,f\,f are theoretically investigated. The results show that although the strongest confinement of the field is achieved by surface plasmon modes at GaN/Ag interface, the energy density W is small inside the cavity, leading to a high effective mode area. Additionally, the cavity without metallic coating has the highest $Q$ factors since no metal loss is involved. These results can serve as guidelines for the design and fabrication of high efficiency and high speed LEDs for the applications of solid-state lighting and visible-light communication. [ABSTRACT FROM PUBLISHER]

Published
2017
Full Text
View/download PDF

31. Discovery of Substituted Biphenyl Oxazolidinone Inhibitors of Cholesteryl Ester Transfer Protein

Author

Thompson, Christopher F., primary, Ali, Amjad, additional, Quraishi, Nazia, additional, Lu, Zhijian, additional, Hammond, Milton L., additional, Sinclair, Peter J., additional, Anderson, Matt S., additional, Eveland, Suzanne S., additional, Guo, Qiu, additional, Hyland, Sheryl A., additional, Milot, Denise P., additional, Sparrow, Carl P., additional, and Wright, Samuel D., additional

Published
2011
Full Text
View/download PDF

32. Analysis of Input LCR Matched $N$-Path Filter.

Author

Lu, Zhijian, Jin, Jing, Mo, Tingting, and Zhou, Jianjun

Subjects
*RESISTOR-inductor-capacitor circuits, *ELECTRIC transformers, *BROADBAND communication systems, *ELECTRIC potential, *CAPACITORS
Abstract

Proposed in this paper is a general parasitic-compatible LCR matching method suitable for $N$-path filter. Analysis of a conventional $L$-type matching is extended to accommodate the case of the $N$- path filter, where the different impedances of the band limited input matching network at multiple local oscillation (LO) harmonic frequencies have to be taken into consideration. Compared to the ideally wideband transformer matching technique, the proposed LCR method has advantages of smaller size and better harmonic folding rejection ratio, while keeping the same properties, such as impedance matching, in-band voltage gain, noise figure and ultimate rejection. Based on the derived equations, the procedure to determine the values of the matching components for given rejection specs has been described using design examples. [ABSTRACT FROM PUBLISHER]

Published
2016
Full Text
View/download PDF

34. DANCE, a Novel Secreted RGD Protein Expressed in Developing, Atherosclerotic, and Balloon-injured Arteries

Author

Nakamura, Tomoyuki, primary, Ruiz-Lozano, Pilar, additional, Lindner, Volkhard, additional, Yabe, Daisuke, additional, Taniwaki, Masafumi, additional, Furukawa, Yutaka, additional, Kobuke, Kazuhiro, additional, Tashiro, Kei, additional, Lu, Zhijian, additional, Andon, Nancy L., additional, Schaub, Robert, additional, Matsumori, Akira, additional, Sasayama, Shigetake, additional, Chien, Kenneth R., additional, and Honjo, Tasuku, additional

Published
1999
Full Text
View/download PDF

39. Histidine Patch Thioredoxins

Author

Lu, Zhijian, primary, DiBlasio-Smith, Elizabeth A., additional, Grant, Kathleen L., additional, Warne, Nicholas W., additional, LaVallie, Edward R., additional, Collins-Racie, Lisa A., additional, Follettie, Maximillian T., additional, Williamson, Mark J., additional, and McCoy, John M., additional

Published
1996
Full Text
View/download PDF

41. IMPROVED THERMAL MANAGEMENT WITH RELIABILITY BANKING.

Author

Lu, Zhijian, Lach, John, Stan, Mircea R., and Skadron, Kevin

Subjects
*TEMPERATURE control, *TEMPERATURE effect, *INTEGRATED circuits, *ELECTRONIC circuit design, *COMPUTER architecture, *VOLTAGE regulators, *RELIABILITY in engineering, *SYSTEMS engineering, *SYSTEMS design
Abstract

The article presents the authors' views on temperature-dependent reliability models to derive the expected life time of the electronic circuits. At times the system designers use a worst-case temperature to evaluate system reliability that leads to excessive design margins. An increase in temperature in general means that the chip is consuming its lifetime more rapidly and vice versa. Also the system might engage dynamic thermal management (DTM) techniques unnecessarily. The article reflects that the effect of low-temperature can compensate for that of high temperature on reliability. Recent research on material and device reliability has shown that temperature and voltage-dependent dynamic processes also govern other failure mechanisms, such as negative-bias temperature instability and gate oxide break down. A chip's thermal characteristics include not only cross-chip spatial temperature gradients but also temporal temperature gradients for each component. Lifetime banking provides benefits to the chip by avoiding unnecessary DTM engagements while meeting expected lifetime requirements. INSETS: Dynamic thermal management.;Dynamic electromigration reliability model.;Thermal behaviors in server workloads..

Published
2005
Full Text
View/download PDF

45. Genome Sequence of Aedes aegypti, a Major Arbovirus Vector.

Author

Nene, Vishvanath, Wortman, Jennifer R., Lawson, Daniel, Haas, Brian, Kodira, Chinnappa, Lu, Zhijian (Jake), Loftus, Brendan, Zhiyong Xi, Megy, Karyn, Grabherr, Manfred, Quinghu Ren, Zdobnov, Evgeny M., Lobo, Neil F., Campbell, Kathryn S., Brown, Susan E., Bonaldo, Maria F., Jingsong Zhu, Sinkins, Steven P., Hogenkamp, David G., and Amedeo, Paolo

Subjects
*GENOMES, *AEDES aegypti, *ARBOVIRUS diseases, *ARBOVIRUSES, *YELLOW fever, *DENGUE, *MALARIA, *ANOPHELES gambiae, *TRANSPOSONS
Abstract

We present a draft sequence of the genome of Aedes aegypti, the primary vector for yellow fever and dengue fever, which at ∼1376 million base pairs is about 5 times the size of the genome of the malaria vector Anopheles gambiae. Nearly 50% of the Ae. aegypti genome consists of transposable elements. These contribute to a factor of ∼4 to 6 increase in average gene Length and in sizes of intergenic regions relative to An. gambiae and Drosophila melanogaster. Nonetheless, chromosomal synteny is generally maintained among all three insects, although conservation of orthotogous gene order is higher (by a factor of ∼2) between the mosquito species than between either of them and the fruit fly. An increase in genes encoding odorant binding, cytochrome P450, and cuticle domains relative to An. gambiae suggests that members of these protein families underpin some of the biological differences between the two mosquito species. [ABSTRACT FROM AUTHOR]

Published
2007
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results