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A review of progress on nano-aperture VCsEL Invited Paper

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Chinese Optics Letters 2008年第10期6卷 748-754页

作者： sonny Vo james.s.Harris solid state and Photonics Laboratory Stanford UniversityStanfordCalifornia94305USA

This paper reviews the progress on nano-aperture vertical-cavity surface-emitting lasers （VCsELs）. The design, fabrication, and polarization control of nano-aperture VCsELs are reviewed. With the nanoaperture evolving from conventional circular and square aperture to unique C-shaped, H-shaped, I-shaped, and bowtie-shaped aperture, both the near-field intensity and near-field beam confinement from nanoaperture VCsELs are significantly improved. As a high-intensity compact light source with sub-100- nm spot size, nano-aperture VCsELs are promising to realize many new near-field optical systems and applications.

关键词： VCsEL view A review of progress on nano-aperture VCsEL Invited Paper

Abiotic and biotic constituents of oil sands process-affected waters

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Journal of Environmental sciences 2023年第5期127卷 169-186页

作者： Nora A.s.Hussain james L.stafford Department of Biological sciences University of AlbertaEdmontonAlberta T6G 2N8Canada

The oil sands in Northern Alberta are the largest oil sands in the world,providing an important economic resource for the Canadian energy *** extraction of petroleum in the oil sands begins with the addition of hot water to the bituminous sediment,generating oil sands process-affected water(OsPW),which is acutely toxic to *** of litres of OsPW are stored on oil sands mining leased sites in man-made reservoirs called tailings *** the volume of OsPW increases,concerns arise regarding the reclamation and eventual release of this water back into the *** is composed of a complex and heterogeneous mix of components that vary based on factors such as company extraction techniques,age of the water,location,and bitumen ore ***,the effective remediation of OsPW requires the consideration of abiotic and biotic constituents within it to understand short and long term effects of treatments *** review summarizes selected chemicals and organisms in these waters and their interactions to provide a holistic perspective on the physiochemical and microbial dynamics underpinning OsPW.

关键词： OsPW toxicants Reclamation Tailings ponds Remediation Microbial AOPs Bioremediation

Current recommendations of managing HBV infection in preconception or pregnancy

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Frontiers of Medicine 2014年第2期8卷 158-165页

作者： james.s. Park Calvin Pan Division of Gastroenterology Department of Medicine NYU Langone Medical Center NYU School of Medicine New York 10016 USA

Hepatitis B remains a leading cause of cirrhosis, hepatocellular carcinoma and liver transplantation worldwide. Management of chronic hepatitis B during pregnancy is challenging. Transmission of hepatitis B to infants still occurs perinataily although immunoprophylaxis is widely available for infants born to mothers with chronic hepatitis B infection. The emerging data suggest that initiation of antiviral therapy in the beginning of the third trimester in highly viremic mothers can prevent immunoprophylaxis failure in their infants. The available drug safety data show that lamivudine, telbivudine and tenofovir are generally safe to be used during the pregnancy. In order to minimize the fetal exposure to the antiviral medication, antiviral therapy during the pregnancy should be limited to a selected group of patients with cirrhosis, high hepatitis B viral load, or prior history immunoprophylaxis failure. An elective Caesarean section may reduce the risk of perinatal transmission. For those females planning for pregnancy or in early stage of pregnancy, communication and follow-up among obstetrician, gastroenterologist, and primary care physician are important. In this article, we will review the features of hepatitis B infection before, during and after the pregnancy; the risk factors that increase mother-tochild transmission; safety data on antiviral drug use during pregnancy; and the potential role of Caesarean section in selected cases.

关键词： antiviral therapy Caesarean section cirrhosis hepatitis B irnmunoprophylaxis mother-to-child transmission pregnancy prevention

Implicit Continuous User Authentication for Mobile Devices based on Deep Reinforcement Learning

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Computer systems science & Engineering 2023年第2期44卷 1357-1372页

作者： Christy james Jose M.s.Rajasree Government Engineering College Idukki685603India APJ Abdul Kalam Technological University Thiruvananthapuram695016India

The predominant method for smart phone accessing is conﬁned to methods directing the authentication by means of Point-of-Entry that heavily depend on physiological biometrics like,ﬁngerprint or *** continuous authentication initiating to be loftier to conventional authentication mechanisms by continuously conﬁrming users’identities on continuing basis and mark the instant at which an illegitimate hacker grasps dominance of the ***,divergent issues remain *** research aims to investigate the power of Deep Reinforcement Learning technique to implicit continuous authentication for mobile devices using a method called,Gaussian Weighted Cauchy Kriging-based Continuous Czekanowski’s(GWCK-CC).First,a Gaussian Weighted Non-local Mean Filter Preprocessing model is applied for reducing the noise pre-sent in the raw input face *** Kriging Regression function is employed to reduce the ***,Continuous Czekanowski’s Clas-siﬁcation is utilized for proﬁcient classiﬁcation between the genuine user and *** this way,the proposed GWCK-CC method achieves accurate authen-tication with minimum error rate and *** assessment of the pro-posed GWCK-CC method and existing methods are carried out with different factors by using UMDAA-02 Face *** results conﬁrm that the proposed GWCK-CC method enhances authentication accuracy,by 9%,reduces the authen-tication time,and error rate by 44%,and 43%as compared to the existing methods.

关键词： Deep reinforcement learning gaussian weighted non-local meanﬁlter cauchy kriging regression continuous czekanowski’s implicit continuous authentication mobile devices

Estimating REY content of eastern Kentucky coal samples based on their associated ash elements

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Journal of Rare Earths 2018年第11期36卷 1234-1238页

作者： s.Chehreh Chelgani james C.Hower Department of Electrical Engineering and Computer science University of Michigan Center for Applied Energy Research University of Kentucky

Coal and coal combustion byproducts can be considered as an alternative source of rare earth elements and yttrium （REY）. The study of relationships between REY and other main coal properties could have several advantages such as estimating REY content of coal particles and designing beneficial extraction method. In this investigation, inter-correlations between REY content with coal parameters （proximate and ash elements） for a wide range of eastern Kentucky coal samples （708 records） were explored. Results demonstrate that zircon and monazite are the main source of heavy and light rare earth elements （HREE and LREE）, respectively. Zr has the highest correlation with Y and Th has the strength relationship with Ce and La. In general, LREE have higher interaction with coal ash content in comparison with HREE. Results indicated that REY can be estimated quite satisfactorily by using their associated elements in coal ash.

关键词： Coal Heavy rare earth Light rare earth Proximate Ash elements

Alterations in gastric mucin synthesis by Helicobacter pylori

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World Journal of Gastroenterology 2000年第4期6卷 475-482页

作者： james C. Byrd Robert s. Bresalier Gastrointestinal Cancer Research Laboratory Henry Ford Health Sciences CenterDetroitMIUSA Gastrointestinal Cancer Research Laboratory Henry Ford Health Sciences CenterDetroitMIUSA Department of MedicineUniversity of Michigan School of MedicineAnn ArborMIUSA

INTRODUCTIONHelicobacter pylori is recognized as a cause of chronicactive gastritis,gastric and duodenal ulcers,and gastriccancer,though the mechanisms of pathogenesis for ***-associated diseases are not yet well *** ... 详细信息

关键词： gastric mucin Helicobacter pylori

Methodology to locate and quantify radial winding deformation in power transformers

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High Voltage 2017年第1期2卷 17-24页

作者： steven D.Mitche james.s.Wesh school of Electrical and Computer Engineering University of NewcastleCallaghanN.S.W 2308Australia

Frequency response analysis(FRA)is a tool that can be used to detect changes within the structural geometry of a *** application of FRA is to detect winding displacement after the transformer experiences an overcurrent *** paper proposes a methodology which will facilitate both locating and quantifying winding *** procedure is based on the fitting of a Gray Box transformer model to FRA measurements which were recorded both before and after the *** variation in key parameters of the model can then be used to quantify winding deformation *** research will demonstrate the applicability of this approach to a wide range of transformer applications by using FRA from a modified 1.3 MVA distribution transformer,and assessing the change in key parameters relative to the emulated buckling introduced to the *** authors propose that this approach is ideally suited for use within an automated diagnostic system which will locate,diagnose and quantify winding deformation within power transformers.

关键词： winding deformation power

CO_(2)Emissions Post-COP26:Who is Responsible to Curb the Flow?Does it Matter if We Can Make it a Win-Win?

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Energy & Environmental Materials 2022年第3期5卷 683-685页

作者： james Crawshaw s.Ravi P.silva Advanced Technology Institute University of SurreyGuildfordUK

The debate about climate change is highly *** everyone is convinced that CO_(2)emissions are worth curbing despite seemingly irrefutable evidence in the IPCC’s latest report.[1]some have vested interests in exploiting fossil fuels while others think alternative,cheaper solutions can be *** that have shifted from manufacturing to service-based economies will find it easier to *** countries with relatively low carbon emissions per capita but large populations believe it is unfair that they should have to bear heavy costs of decarbonization to solve a problem that wealthier countries have created.

关键词： Who is Responsible to Curb the Flow CO_(2)Emissions Post-COP26 Does it Matter if We Can Make it a Win-Win

Productivity and technical efficiency of Robusta coffee farms at varying elevation categories in sultan Kudarat, Philippines: implications on sustainability

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Journal of Mountain science 2024年第11期21卷 3615-3629页

作者： Mark james.s.sAGUIMPA Larry N.DIGAL Agri-Aqua Value Chain Laboratory University of the Philippines MindanaoDavao City 8000Philippines school of Management University of the Philippines MindanaoDavao City 8000Philippines

Elevation can affect agricultural outputs,affecting farms’productivity and *** article identified the significant production inputs influencing productivity and factors influencing technical efficiency(TE)and determined the average TE scores of Robusta coffee farms at varying elevations in sultan Kudarat,***-sectional data from the Mahintana Foundation,*** random stratified sampling and power analysis from september 9,2021,to January 13,2022,were used to analyze 604 farms from areas ranging from 0.33 to 1284.18 above mean sea level(amsl),classified as low,medium,and high ***-Data-Kit-based(ODK)mobile data collection systems were utilized to precisely determine the farms’coordinates and *** stochastic frontier analysis,results showed that increasing the total fertilizer amount and total trees by 1%significantly increased yield by 0.20%and 0.79%,***,increasing the total land area by 1%,including areas unutilized for coffee farming,decreases total yield by 0.11%.Regarding TE,results showed that TE decreases by approximately 0.58%at high ***,increasing net income from coffee farming alone by 1%significantly increases TE by 0.00008%.With an average TE of 0.60,0.77,and 0.63 in low,medium,and high elevations,farms may be incentivized to improve farming practices to increase their TE *** improvement recommendations include promoting coffee-agroforestry systems and ecolabelling at medium elevations,such as shade-grown coffee,to promote sustainable production in Robusta coffee farms by assigning a premium to consumers demanding environmental conservation.

关键词： Cobb-Douglas production function Elevation Philippines Robusta coffee farms stochastic frontier analysis Technical efficiency