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A high-efficiency low-wearing hybrid voltage regulator for utility applications
Title
A high-efficiency low-wearing hybrid voltage regulator for utility applications
Author
Zhao, Tiefu, Wang, Yafeng
Date Created
2023
Subjects--Topical
Voltage regulators, Electric power distribution
Description
Step voltage regulator (SVR) has been utilized in power distribution systems for decades as the voltage regulation device. Due to the increasing integration of distributed energy resources, the conventional SVR is severely challenged by the modern...
Photo-induced macro/mesoscopic scale ion displacement in mixed-halide perovskites : ring structures and ionic plasma oscillations
Title
Photo-induced macro/mesoscopic scale ion displacement in mixed-halide perovskites : ring structures and ionic plasma oscillations
Author
Zhang, Y. (Yong), 1960-, Sun, Xiaoxiao, Ge, Weikun
Date Created
2022
Subjects--Topical
Ions, Physics
Description
Contrary to the common belief that the light-induced halide ion segregation in a mixed halide alloy occurs within the illuminated area, we find that the Br ions released by light are expelled from the illuminated area, which generates a macro/meso...
Multiple-stage structure transformation of organic-inorganic hybrid Perovskite CH3NH3PbI3
Title
Multiple-stage structure transformation of organic-inorganic hybrid Perovskite CH3NH3PbI3
Author
Zhang, Y. (Yong), 1960-, Chen, Qiong, Kim, Hui-Seon, Liu, Yucheng, Yang, Mengjin, Yue, Naili, Ren, Gang, Zhu, Kai, Lu, Shengzhong, Park, Nam-Gyu
Subjects--Topical
Physics, Perovskite
Description
By performing spatially resolved Raman and photoluminescence spectroscopy with varying excitation wavelength, density, and data acquisition parameters, we achieve a unified understanding towards the spectroscopy signatures of the organic-inorganic...
An all optical approach for comprehensive in-operando analysis of radiative and nonradiative recombination processes in GaAs double heterostructures
Title
An all optical approach for comprehensive in-operando analysis of radiative and nonradiative recombination processes in GaAs double heterostructures
Author
Zhang, Y. (Yong), 1960-, Zhang, Fan, Castaneda, Jose, Gfroerer, Timothy, Friedman, Daniel, Zhang, Yong-Hang, Wanlass, Mark W.
Subjects--Topical
Optics, Photoluminescence
Description
We demonstrate an all optical approach that can surprisingly offer the possibility of yielding much more information than one would expect, pertinent to the carrier recombination dynamics via both radiative and nonradiative processes when only one...
Topologic connection between 2-D layered structures and 3-D diamond structures for conventional semiconductors
Title
Topologic connection between 2-D layered structures and 3-D diamond structures for conventional semiconductors
Author
Zhang, Y. (Yong), 1960-, Wang, Jianwei
Date Created
2016
Subjects--Topical
Density functionals, Two-dimensional materials
Description
When coming to identify new 2D materials, our intuition would suggest us to look from layered instead of 3D materials. However, since graphite can be hypothetically derived from diamond by stretching it along its [111] axis, many 3D materials can ...
Gender differences affecting the relationship between sleep attitudes, sleep behaviors and sleep outcomes
Title
Gender differences affecting the relationship between sleep attitudes, sleep behaviors and sleep outcomes
Author
Zendels, Philip, Ruggiero, Aria, Gaultney, Jane F.
Subjects--Topical
Sleep, Health attitudes
Description
Research has found that discrepancies exist in many health-related behaviors, leading to discrepancies in health outcomes, between men and women. Among these, women tend to have more positive attitudes towards sleep and better sleep hygiene practi...
A psychometric assessment of a network social capital scale among sexual minority men and gender minority individuals
Title
A psychometric assessment of a network social capital scale among sexual minority men and gender minority individuals
Author
Zarwell, Meagan, Walsh, Jennifer L., Quinn, Katherine G., Kaniuka, Andrea, Patton, Alexandra, Robinson, William T., Cramer, Robert J. (Robert Joseph)
Subjects--Topical
Social capital (Sociology)--Research--Methodology, Social networks, Queer studies
Description
Background Social capital, the potential for individuals to access resources through group memberships, is linked to a constellation of health outcomes. We modified a previously evaluated Constructed Family Social Capital Scale for gay, bisexual a...
An updated synthesis of and outstanding questions in the olfactory and vomeronasal systems in bats : genetics asks questions only anatomy can answer
Title
An updated synthesis of and outstanding questions in the olfactory and vomeronasal systems in bats : genetics asks questions only anatomy can answer
Author
Yohe, Laurel R., Krell, Nicholas T.
Date Created
2023
Subjects--Topical
Bats, Ecology
Description
The extensive diversity observed in bat nasal chemosensory systems has been well-documented at the histological level. Understanding how this diversity evolved and developing hypotheses as to why particular patterns exist require a phylogenetic pe...
Unifying Estimation of Varying-coefficient Models
Title
Unifying Estimation of Varying-coefficient Models
Author
yin, weitong
Date Created
2019
Subjects--Topical
Statistics
Description
Varying-coefficient models are widely used to analyze the relationship between a response and a group of covariates. Existing research shows different convergence rates for the estimators of coefficient for the stationary part and the nonstationar...
Degradation kinetics of organic-inorganic hybrid materials from micro-Raman spectroscopy and density-functional theory
Title
Degradation kinetics of organic-inorganic hybrid materials from micro-Raman spectroscopy and density-functional theory
Author
Ye, Tang, Sun, Yi-Yang, Kocherga, Margaret, Nesmelov, Andrei
Date Created
2023
Subjects--Topical
Materials, Engineering design
Description
Organic–inorganic hybrid materials often face a stability challenge. β-ZnTe(en)0.5, which uniquely has over 15-year real-time degradation data, is taken as a prototype structure to demonstrate an accelerated thermal aging method for assessing the ...
Dysregulation of AKT3 along with a small panel of mRNAs stratifies high-grade serous ovarian cancer from both normal epithelia and benign tumor tissues
Title
Dysregulation of AKT3 along with a small panel of mRNAs stratifies high-grade serous ovarian cancer from both normal epithelia and benign tumor tissues
Author
Yeganeh, Pourya Naderi, Richardson, Christine, Mostafavi, M. Taghi, Bahrani-Mostafavi, Zahra
Date Created
2017
Subjects--Topical
Cancer, Ovaries--Cancer
Description
Screening methods of High-Grade Serous Ovarian Cancer (HGSOC) lack specificity and sensitivity, partly due to benign tumors producing false-positive findings. We utilized a differential expression analysis pipeline on malignant tumor (MT) and norm...
Genomic alterations and abnormal expression of APE2 in multiple cancers
Title
Genomic alterations and abnormal expression of APE2 in multiple cancers
Author
Yan, Shan, Jensen, Katherine A., Shi, Xinghua
Subjects--Topical
Cancer--Genetic aspects, DNA repair
Description
Although APE2 plays essential roles in base excision repair and ATR-Chk1 DNA damage response (DDR) pathways, it remains unknown how the APE2 gene is altered in the human genome and whether APE2 is differentially expressed in cancer patients. Here,...
APE2 promotes DNA damage response pathway from a single-strand break
Title
APE2 promotes DNA damage response pathway from a single-strand break
Author
Yan, Shan, Lin, Yunfeng, Bai, Liping, Cupello, Steven
Date Created
2018
Subjects--Topical
Cancer--Research, DNA
Description
As the most common type of DNA damage, DNA single-strand breaks (SSBs) are primarily repaired by the SSB repair mechanism. If not repaired properly or promptly, unrepaired SSBs lead to genome stability and have been implicated in cancer and neurod...
Modulation of neural activity for myelination in the central nervous system
Title
Modulation of neural activity for myelination in the central nervous system
Author
Yang, In Hong, Choi, H. Elliot, Blasiak, Agatha, Lee, Joonho
Date Created
2019
Subjects--Topical
Central nervous system, Myelination
Description
Electrical stimulation has been playing a significant role in revealing various functions and mechanisms of the nervous system. It is no different for myelination, a process in which oligodendrocytes in the central nervous system (CNS) or Schwann ...
Understanding of stress‐driven internal short circuit mechanisms in lithium‐ion batteries with high SOCs
Title
Understanding of stress‐driven internal short circuit mechanisms in lithium‐ion batteries with high SOCs
Author
Xu, Jun, Li, Jiani, Gao, Xiang, Duan, Xudong
Date Created
2023
Subjects--Topical
Lithium ion batteries, Lithium cells
Description
The characteristics of internal short circuits (ISC) play a critical role in determining the thermal runaway behaviors and associated hazards of lithium-ion batteries (LIBs). However, due to safety concerns and limitations in operando characteriza...
Tough nature-inspired helicoidal composites with printing-induced voids
Title
Tough nature-inspired helicoidal composites with printing-induced voids
Author
Xu, Jun, Yin, Sha, Chen, Haoyu, Yang, Ruiheng
Date Created
2020
Subjects--Topical
Three-dimensional modeling, Three-dimensional printing
Description
Exoskeletons of Odontodactylus japonicas, the smasher-type mantis shrimp, feature a raptorial appendage comprising a Bouligand architecture of chitin nanofibrils with newly observed voids or defects between the polysaccharide alpha-chitin and prot...
Micelle-assisted strategy for the direct synthesis of large-sized mesoporous platinum catalysts by vapor infiltration of a reducing agent
Title
Micelle-assisted strategy for the direct synthesis of large-sized mesoporous platinum catalysts by vapor infiltration of a reducing agent
Author
Xu, Jun, Li, Yunqi, Liu, Yuwei, Yamauchi, Yusuke
Date Created
2018
Subjects--Topical
Metals, Mechanical engineering
Description
Stable polymeric micelles have been demonstrated to serve as suitable templates for creating mesoporous metals. Herein, we report the utilization of a core-shell-corona type triblock copolymer of poly(styrene-b-2-vinylpyridine-b-ethylene oxide) an...
Exploring high-energy and mechanically robust anode materials based on doped graphene for lithium-ion batteries: a first-principles study
Title
Exploring high-energy and mechanically robust anode materials based on doped graphene for lithium-ion batteries: a first-principles study
Author
Xu, Jun, Chang, Cheng, Yin, Sha
Date Created
2020
Subjects--Topical
Lithium ion batteries, Mechanical engineering
Description
In this study, the adsorption of Li atoms on various types of doped graphene with substituents, including boron, nitrogen, sulfur and silicon atoms, has been theoretically investigated by first-principles calculations, based on the density functio...
Dynamic behaviour of core-shell structured Si nanoparticles during lithiation/delithiation cycling at dynamic loadings
Title
Dynamic behaviour of core-shell structured Si nanoparticles during lithiation/delithiation cycling at dynamic loadings
Author
Xu, Jun, Gao, Xiang, Yuan, Chunhao
Date Created
2018
Subjects--Topical
Materials--Dynamic testing, Mechanical engineering
Description
Dynamic behaviours of the core-shell structured (CSS) Si nanoparticles during electrochemical cycling were modelled. A core-shell-structured model that contained Si nanoparticles wrapped with amorphous carbon (a-C) was established. The system was ...
Comprehensive battery safety risk evaluation : aged cells versus fresh cells upon mechanical abusive triggering
Title
Comprehensive battery safety risk evaluation : aged cells versus fresh cells upon mechanical abusive triggering
Author
Xu, Jun, Ma, Lin, Gao, Xiang, Jia, Yikai
Date Created
2023
Subjects--Topical
Materials, Lithium ion batteries
Description
Despite their wide applications, lithium-ion batteries (LIBs) have been struggling with their safety risks arising from different lifetime stages. Here, the NCMA pouch cell is taken as an example, and the safety of both fresh and aged cells from t...