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Simple equivalent systems for GRIN lenses in inhomogeneous medium

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Chinese Optics Letters 2010年第7期8卷 647-652页

作者：寿翔 Department of Electrical Engineering University of UtahSalt Lake CityUT 84118USA

Simple single-lens equivalent systems for graded-index （GRIN） lenses in inhomogeneous medium obtained using matrix optics are proposed in this letter. Due to its simplicity, the equivalent optical system enables quick analysis of the imaging properties of GRIN lens rod immersed in inhomogeneous medium. This facilitates the optical analysis of complicated optoelectronics systems in inhomogeneous medium utilizing GRIN lens rods.

关键词： Simple equivalent systems for GRIN lenses in inhomogeneous medium

The STING 1 network regulates autophagy and cell death

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Signal Transduction and Targeted Therapy 2021年第7期6卷 1996-2008页

作者： Ruoxi Zhang Rui Kang Daolin Tang Department of Surgery UT Southwestern Medical CenterDallasTXUSA

Cell death and immune response are at the core of *** past decades,the endoplasmic reticulum(ER)protein STING!(also known as STING or TMEM173)was found to play a fundamental role in the production of type I interferons(IFNs)and pro-inflammatory cytokines in response to DNA derived from invading microbial pathogens or damaged hosts by activating multiple transcription *** addition to this well-known function in infection,inflammation,and immunity,emerging evidence suggests that the STING 1-dependent signaling network is implicated in health and disease by regulating autophagic degradation or various cell death modalities(e.g.,apoptosis,necroptosis,pyroptosis,ferroptosis,mitotic cell death,and immunogenic cell death[ICD]).Here,we outline the latest advances in our understanding of the regulating mechanisms and signaling pathways of STING1 in autophagy and cell death,which may shed light on new targets for therapeutic interventions.

关键词： death immunity inflammation

Dispersion of ultrafine alumina in modifier solution ——the role of polar interfacial interaction

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Journal of Central South University of Technology 2001年第1期8卷 18-23页

作者： HU Yue hua 1,QIU Guan zhou 1,J.D.Miller 2 (1.Department of Mineral Engineering, Central South University, Changsha 410083, China 2.Department of Metallurgical Engineering, University of utah, 412 WBB, Salt Lake City, ut 84112, USA) 1. Department of Mineral Engineering Central South University 410083 Changsha China 2. Department of Metallurgical Engineering University of Utah 412 WBB 84112 Salt Lake City UT USA

Dispersion of ultrafine alumina suspension is examined by using particle size analyzer. The zeta potential and contact angle measurements were used to discuss the electrokinetic behavior and surface wettability of alumina in modifier solution, and to calculate the electrostatic interaction forces and interfacial interaction forces between alumina particles. The aggregation of ultrafine alumina occurs near its PZC. Addition of modifier increases the zeta potential of alumina and its surface hydrophilicity, resulting in increase of electrostatic and hydration repulsion. It makes the suspension of ultrafine alumina completely dispersed. The average particle size of the suspension is decreased from 1.73 μm in absence of modifier to 0.8 μm in the presence of tripolyphosphate. According to polar interfacial interaction approach, the hydration forces responsible for the stability of alumina suspension in the presence of modifier have also been obtained. The extended DLVO theory is successful to describe the dispersion behavior of ultrafine alumina in modifier solution.

关键词： dispersion alumina modifier polar interfacial interaction extended DLVO theory

Assessing impacts of energy storage on resilience of distribution systems against hurricanes

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Journal of Modern Power Systems and Clean Energy 2019年第4期7卷 731-740页

作者： Hieu T.NGUYEN John W.MUHS Masood PARVANIA Department of Electrical and Computer Engineering University of UtahSalt Lake CityUT 84112USA

This paper develops a comprehensive framework to analyze the impact of energy storage on improving the resilience of distribution systems against *** paper first develops a spatio-temporal model of progressing hurricane when making landfall that can be used to anticipate outage scenarios caused by the gust-wind *** optimization model is then developed for optimizing the operation of distribution systems during hurricane that captures both pre-outage and post-outage network operation *** simulations are performed on the modified IEEE 33-bus distribution system with real hurricane data in Houston to demonstrate the effectiveness of the proposed model.

关键词： Resilience Hurricane Energy storage Distribution system

Viability and hatchability of brine shrimp Artemia franciscana cysts after passing through the digestive system of eared grebes Podiceps nigricollis

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Journal of Oceanology and Limnology 2023年第4期41卷 1300-1306页

作者： Michael R.CONOVER Mark E.BELL Leah M.DELAHOUSSAYE Department of Wildland Resources and Ecology Center LoganUT 84322-5230USA

Brine shrimp Artemia franciscana provide food for many migrating and staging birds that spend summer and fall on Great Salt Lake,utah,*** produce live young and cysts(hard-walled eggs);these cysts are commercially harvested on Great Salt Lake and support a large industry in *** is unclear the impact that millions of hungry birds have on the Artemia population in the *** help assess that,this study evaluated cyst viability(percentage of cysts that contain an embryo)and hatchability(percent of cysts that hatch)from cysts that had passed through the digestive tract of eared grebes Podiceps nigricollis and cysts obtained directly from Great Salt Lake at the same site where each grebe was *** was significantly higher for cysts collected from the water column(19%)than from the stomach(0.3%)or intestines(3%)of eared *** also was significantly different for cysts collected from the water column(29%),stomach(0.7%),and intestines(5%).These results indicate that eared grebes nutritionally benefit from eating cysts and that they may be an important food source for grebes in late fall after the adult population of Artemia dies off due to the water becoming too ***,enough cysts survive their passage through the digestive system that grebes can vector hatchable cysts to other waterbodies.

关键词： Artemia dispersal eared grebes hatchability invasive species Great Salt Lake salty lakes viability

On a Generalized Centralizer Ring of a Finite Group Which Det ermines the Group

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Algebra Colloquium 2019年第1期26卷 31-50页

作者： Emma L. Rode Department of Mathematics Southern Utah University Cedar City UT 84720 USA

The k-characters are class functions on subsets of G^k called the k-classes of G. For a finite group G, the k-class sums form a basis for a subring of CG^k, which we call the k-S-ring of G、and we think of these rings as generalized centralizer rings. We show that for a finite group G the 3-S-ring determines G. More specifically, the group characters and set products of certain 3-classes of G, which we call “uniform 3-classes", determine G.

关键词： S-ring fc-class centralizer ring

Molecular bridge-mediated ultralow-power gas sensing

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Microsystems & Nanoengineering 2021年第2期7卷 143-153页

作者： Aishwaryadev Banerjee Shakir-Ul Haque Khan Samuel Broadbent Ashrafuzzaman Bulbul Kyeong Heon Kim Seungbeom Noh R.Looper C.H.Mastrangelo H.Kim Department of Electrical and Computer Engineering University of UtahSalt Lake CityUT84112USA Department of Chemistry University of UtahSalt Lake CityUT84112USA Gyeongsang National University JinjuSouth Korea

We report the electrical detection of captured gases through measurement of the quantum tunneling characteristics of gas-mediated molecular junctions formed across *** gas-sensing nanogap device consists of a pair of vertically stacked gold electrodes separated by an insulating 6 nm spacer(~1.5 nm of sputteredα-Si and~4.5 nm ALD SiO2),which is notched~10 nm into the stack between the gold *** exposed gold surface is functionalized with a self-assembled monolayer(SAM)of conjugated thiol linker *** the device is exposed to a target gas(1,5-diaminopentane),the SAM layer electrostatically captures the target gas molecules,forming a molecular bridge across the *** gas capture lowers the barrier potential for electron tunneling across the notched edge region,from~5 eV to~0.9 eV and establishes additional conducting paths for charge transport between the gold electrodes,leading to a substantial decrease in junction *** demonstrated an output resistance change of>108 times upon exposure to 80 ppm diamine target gas as well as ultralow standby power consumption of15 pW,confirming electron tunneling through molecular bridges for ultralow-power gas sensing.

关键词： tunneling bridge bridges

The BET family in immunity and disease

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Signal Transduction and Targeted Therapy 2021年第2期6卷 387-408页

作者： Nian Wang Runliu Wu Daolin Tang Rui Kang Department of Surgery UT Southwestern Medical CenterDallasTX 75390USA

Innate immunity serves as the rapid and frst-line defense against invading pathogens,and this process can be regulated at various levels,including epigenetic *** bromodomain and extraterminal domain(BET)family of proteins consists of four conserved mammalian members(BRD2,BRD3,BRD4,and BRDT)that regulate the expression of many immunity-associated genes and *** particular,in response to infection and sterile inflammation,abnormally expressed or dysfunctional BETs are involved in the activation of pattern recognition receptor(e.g,TLR,NLR,and CGAS)pathways,thereby linking chromatin machinery to innate immunity under disease or pathological ***,the BET family controls the transcription of a wide range of proinflammatory and immunoregulatory genes by recognizing acetylated histones(mainly H3 and H4)and recruiting transcription factors(e.g.,RELA)and transcription elongation complex(e.g.P-TEFb)to the chromatin,thereby promoting the phosphorylation of RNA polymerase II and subsequent transcription initiation and *** review covers the accumulating data about the roles of the BET family in innate immunity,and discusses the attractive prospect of manipulating the BET family as a new treatment for disease.

关键词： immunity thereby attractive

ACOD1 in immunometabolism and disease

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Cellular & Molecular Immunology 2020年第8期17卷 822-833页

作者： Runliu Wu Feng Chen Nian Wang Daolin Tang Rui Kang Department of Surgery UT Southwestern Medical CenterDallasTX75390USA

Immunometabolism plays a fundamental role in health and diseases and involves multiple genes and *** decarboxylase 1(ACOD1;also known as IRG1)is emerging as a regulator of immunometabolism in inflammation and *** of ACOD1 expression occurs in activated immune cells(e.g.,macrophages and monocytes)in response to pathogen infection(e.g.,bacteria and viruses),pathogen-associated molecular pattern molecules(e.g.,LPS),cytokines(e.g.,TNF and IFNs),and damage-associated molecular patterns(e.g.,monosodium urate).Mechanistically,several immune receptors(e.g.,TLRs and IFNAR),adapter proteins(e.g.,MYD88),ubiquitin ligases(e.g.,A20),and transcription factors(e.g.,NF-κB,IRFs,and STATs)form complex signal transduction networks to control ACOD1 expression in a context-dependent ***,ACOD1 mediates itaconate production,oxidative stress,and antigen processing and plays dual roles in immunity and *** the one hand,activation of the ACOD1 pathway may limit pathogen infection and promote embryo *** the other hand,abnormal ACOD1 expression can lead to tumor progression,neurodegenerative disease,and immune *** understanding of the function and regulation of ACOD1 is important for the application of ACOD1-based therapeutic strategies in disease.

关键词： ACOD1 immunometabolism disease