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deep optics preconditioner for modulation-free pyramid wavefront sensing

Photonics Research 2024年第2期12卷 301-312页

作者： FElIPE GUZMÁN JORGE TAPIA CAMIlO WEINBERGER NICOlÁs HERNÁNdEZ JORGE BACCA BENOIT NEICHEl EsTEBAN VERA school of Electrical Engineering Pontificia Universidad Católica de Valparaı´soValparaı´soChile department of systems Engineering Universidad Industrial de SantanderBucaramangaColombia laboratoire d’Astrophysique de Marseille MarseilleFrance

The pyramid wavefront sensor(PWFs)can provide the sensitivity needed for demanding adaptive optics applications,such as imaging exoplanets using the future extremely large telescopes of over 30 m of diameter(d).However,its exquisite sensitivity has a limited linear range of operation,or dynamic range,although it can be extended through the use of beam modulation—despite sacrificing sensitivity and requiring additional optical *** by artificial intelligence techniques,this work proposes to train an optical layer—comprising a passive diffractive element placed at a conjugated Fourier plane of the pyramid prism—to boost the linear response of the pyramid sensor without the need for cumbersome *** develop an end-2-end simulation to train the diffractive element,which acts as an optical preconditioner to the traditional least-square modal phase estimation *** results with a large range of turbulence conditions show a noticeable improvement in the aberration estimation performance equivalent to over 3λ∕d of modulation when using the optically preconditioned deep PWFs(dPWFs).Experimental results validate the advantages of using the designed optical layer,where the dPWFs can pair the performance of a traditional PWFs with 2λ∕d of *** and adding an optical preconditioner to the PWFs is just the tip of the iceberg,since the proposed deep optics methodology can be used for the design of a completely new generation of wavefront sensors that can better fit the demands of sophisticated adaptive optics applications such as ground-to-space and underwater optical communications and imaging through scattering media.

关键词： process optics pyramid

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Effects of dielectric stoichiometry on the photoluminescence properties of encapsulated Wse2 monolayers

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Nano Research 2018年第3期11卷 1399-1414页

作者： Javier Martfn-sanchez Antonio Mariscal Marta de luca Aitana Tarazaga Martin-luengo Georg Gramse alma Halilovic Rosalia serna Alberta Bonanni Ilaria Zardo Rinaldo Trotta Armando Rastelli Institute of semiconductor and solid state Physics Johannes Kepler University Linz Altenbergerstrasse 69 A-4040 Linz Austria laser Processing Group Instituto de Optica CSIC C/Serrano 121 28006 Madrid Spain department of Physics University of Basel Klingelbergstrasse 82 4056 Basel Switzerland Institute for Biophysics Johannes Kepler University Linz Gruberstrasse 40 A-4020 Linz Austria

Two-dimensional transition metal dichalcogenide semiconductors have emerged as promising candidates for optoelectronic devices with unprecedented properties and ultra-compact footprints. However, the high sensitivity of atomically thin materials to the surrounding dielectric media imposes severe limitations on their practical applicability. Hence, to enable the effective integration of these materials in devices, the development of reliable encapsulation procedures that preserve their physical properties is required. Here, the excitonic photoluminescence （at room temperature and 10 K） is assessed on mechanically exfoliated Wse2 monolayer flakes encapsulated with siOx and AlxOy layers by means of chemical and physical deposition techniques. Conformal coating on untreated and non- functionalized flakes is successfully achieved by all the techniques examined, with the exception of atomic layer deposition, for which a cluster-like oxide coating is formed. No significant compositional or strain state changes in the flakes are detected upon encapsulation, independently of the technique adopted. Remarkably, our results show that the optical emission of the flakes is strongly influenced by the stoichiometry quality of the encapsulating oxide. When the encapsulation is carried out with slightly sub-stoichiometric oxides, two remarkable phenomena are observed. First, dominant trion （charged exciton） photoluminescence is detected at room temperature, revealing a clear electrical doping of the monolayers. second, a strong decrease in the optical emission of the monolayers is observed, and attributed to non-radiative recombination processes and/or carrier transfer from the flake to the oxide. Power- and temperature-dependent photoluminescence measurements further confirm that stoichiometric oxides obtained by physical deposition lead to a successful encapsulation, opening a promising route for the development of integrated two-dimensional devices.

关键词： two dimensional (2d)materials dielectric encapsulation transition metaldichalcogenides semiconductors photoluminescence Wse2

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Porcine Respiratory Pathogens in swine Farms Environment in Mexico

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Open Journal of Animal sciences 2014年第4期4卷 196-205页

作者： Victor M. loera-Muro Abraham loera-Muro Marcela Morfín-Mata Mario Jacques Francisco J. Avelar-González Flor Ramírez-Castillo Elsa M. Ramírez-lópez alma l. Guerrero-Barrera Centro de Ciencias Básicas Universidad Autónoma de Aguascalientes Aguascalientes México Groupe de Recherche sur la Maladies Infectieuses du Porc Faculté de Médecine Vétérinaire Université de Montréal St-Hyacinthe Québec Canada Keken Jefatura Sitio 2 y WTF Mérida México laboratorio de Biología Celular y Tisular Departamento de Morfología Centro de Ciencias Básicas Universidad Autónoma de Aguascalientes Aguascalientes México

Respiratory pathogens are the main health problem in the swine industry worldwide. These pathogens are transmitted by direct contact between animals or by aerosols and however are not well known yet, if the environment works as its reservoir, inoculum and/or dispersion medium. The objective of this study was to determine the presence of respiratory pathogens in environmental samples from swine farms in Aguascalientes, Mexico, through of PCR and RT-PCR techniques. The bacteria Actinobacillus pleuropneumoniae and Pasteurella multocida were found viable in samples from water, food, soil and air. streptococcus suis was found in a viable state in water samples. Haemophilus parasuis, Porcine Reproductive and Respiratory syndrome virus and swine Influenza virus (H1N1 and H3N2) were detected in drinking water samples. Mycoplasma hyopneumoniae and Porcine Circovirus type 2 (PCV2) were not detected in environmental samples. These results suggest that the environment of the farms acts as a reservoir, inoculum and/or vehicle of dispersion for these pathogens except for M. hyopneumoniae and PCV2.

关键词： Environment Respiratory Pathogen Porcine Respiratory disease Complex PCR and RT-PCR

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木粉多元醇液化残余物的结构表征

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北京林业大学学报 2011年第3期33卷 106-110页

作者：牛敏赵广杰 M H alma 北京林业大学材料科学与技术学院 Faculty of Forestry of Kahramanmaras sutcu Imam University

为了探究木粉多元醇液化过程中缩聚反应阶段液化残余物的化学基团、结晶度以及微观形态的变化,进而探明缩聚反应机理,以聚乙二醇和丙三醇为液化剂、H2sO4为催化剂,对桦木木粉液化,并用FTIR、XRd和sEM对液化残余物进行分析。结果表明:1)... 详细信息

为了探究木粉多元醇液化过程中缩聚反应阶段液化残余物的化学基团、结晶度以及微观形态的变化,进而探明缩聚反应机理,以聚乙二醇和丙三醇为液化剂、H2sO4为催化剂,对桦木木粉液化,并用FTIR、XRd和sEM对液化残余物进行分析。结果表明:1)在0～180min液化时间内,缩聚反应约发生在70min以后。2)与木粉相比,分解反应和缩聚反应阶段的液化残余物在1500、1607和1248cm-1处基于木素的芳香环和甲氧基的吸收特征峰消失,在1739cm-1处基于糖类化合物基团的吸收特征峰明显变小。3)在分解反应阶段,液化残余物的结晶度有所增大;而在缩聚反应阶段,结晶度保持一段恒定值,后呈增大趋势。4)在缩聚反应阶段,液化残余物的微观形态出现块状堆积物。

关键词：化学基团结晶度微观形态液化残余物

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Crohn’s disease in low and lower-middle income countries: A scoping review

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World Journal of Gastroenterology 2020年第43期26卷 6891-6908页

作者： Ruma Rajbhandari samantha Blakemore Neil Gupta alma J Adler Christopher Allen Noble sara Mannan Klejda Nikolli Alison Yih sameer Joshi Gene Bukhman division of Global Health Equity Department of MedicineBrigham and Women’s HospitalBostonMA 02115United States department of Global Health and social Medicine Harvard Medical SchoolBostonMA 02199United States Partners in Health NCD SynergiesBostonMA 02199United States Western Reserve Health Education Trumbull Regional Medical CenterWarrenOH 44483United States

BACKGROUNd While Crohn’s disease has been studied extensively in high-income countries,its epidemiology and care in low and lower-middle income countries(llMICs)is not well established due to a lack of disease registries and diagnostic *** To describe the published burden,diagnostic/treatment capacity,service utilization,challenges/barriers to individuals with Crohn’s in llMICs and their *** We conducted a scoping review utilizing a full search strategy was developed and conducted in PubMed,Embase and World Health Organization Global Index *** independent reviewers screened the titles and abstracts of all of the publications found in this search,reviewed selected publications,and extracted relevant data,which underwent descriptive review and was analyzed in *** The database search yielded 4486 publications,216 of which were determined to be relevant to the research *** all 79 llMICs,only 21(26.6%)have publications describing individuals with Crohn’***,the highest number of studies came from India,followed by Tunisia,and *** mean number of Crohn’s patients reported per study is 57.84 and the median is 22,with a wide range from one to *** This scoping review has shown that,although there is a severe lack of populationbased data about Crohn’s in llMICs,there is a signal of Crohn’s in these settings around the world.

关键词： Crohn’s disease low and lower-middle income countries scoping review service utilization diagnostic/Treatment capacity

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罪犯改造教育课程的有效性探究：纳米比亚中部地区的案例研究

罪犯改造教育课程的有效性探究：纳米比亚中部地区的案例研究

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作者： alma Amweelo 华东师范大学

学位级别：硕士

惩教改造和心理与社会项目旨在为罪犯提供生存技能和知识,使其能够在刑满获释后重新融入社会。然而,目前只有长期罪犯受益于惩教改造,短期罪犯没有接受相关教育,没有受益的罪犯刑满释放后会继续犯罪,这不禁令人质疑纳米比亚惩教计划的... 详细信息

惩教改造和心理与社会项目旨在为罪犯提供生存技能和知识,使其能够在刑满获释后重新融入社会。然而,目前只有长期罪犯受益于惩教改造,短期罪犯没有接受相关教育,没有受益的罪犯刑满释放后会继续犯罪,这不禁令人质疑纳米比亚惩教计划的有效性。本研究旨在调查纳米比亚惩教计划实施的有效性,主要针对两个机构,目的是调查和确定罪犯惩教改造课程的有效性,实施的惩教计划是否能让罪犯为重新融入社区做好准备,评估惩教课程的实施情况,调查罪犯在英语、沟通能力、数学、阅读及各种技能方面的熟练程度,最后向部门提出一些建议并完成对两个机构的调查研究目标。研究者发现,惩教课程可以通过培养认知技能、确保再就业和降低累犯率来帮助监禁中的罪犯。惩教课程通过开发和实现囚犯的认知技能改变了他们的生活,具有重大意义。罪犯教育课程的存在及其意义毋庸置疑。本文主要讨论了阻碍罪犯教育课程全面实施的挑战以及可能的解决方法。研究采用由案例研究组成的定性研究法,主题研究法用于分析数据并收集结果。研究结果表明,要实现惩教课程的有效性,需要在保障所有资源到位的情况下全面开展此类计划。显然,当所有罪犯都接受该机构提供的改造项目时,计划可能会产生积极的结果。此外,研究发现,这两个机构提供的计划实施效果很好,但计划需要按照政策的规定开始交付,并获得市场认可。研究鼓励政策制定者为性犯罪者制定手册并解决他们的风险需求,同时要注重短期罪犯这些最有可能再犯罪的群体,他们的风险需求没有得到解决,因此应该为他们提供短期改造课程。然而,研究者在调查结果中对有效性概念产生了疑问。最后,由于惩教课程的改进和审查可能会带来巨大且积极的变化,该研究为纳米比亚惩教计划的政策制定者提供了一些改进和扩大研究的建议。

关键词：有效性罪犯惩教课程改造实施重新融入

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Mass Valuation and the Implementation Necessity of GIs （Geographic Information system） in Albania

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Journal of Civil Engineering and Architecture 2015年第12期9卷 1506-1512页

作者： Elfrida shehu Elda Maci Vorpsi alma Afezolli Civil Engineering Faculty Polytechnic University of Tirana Tirana 1001 Albania Municipality of Tirana Tirana 1001 Albania

In the last decade, mass valuation system is applied in Albania in addition to individual valuation system for real estate valuation. This system is used for compiling the land value map and apartments value map. due to the lack of experience in the compilation of these maps, the methodology of valuation is based on the experiences of other countries with similar development of real estate market. The mass assessment, which is applied in determining the values for specific purposes, such as expropriation, compensation and taxes for property transfer through the methodology adopted for this aim, is analyzed in the light of the finding of issues that accompany this application. The aim of this research is to highlight the problems to provide the ways of overcoming them in order to approximate the values of map values with market values. The mass appraisal process requires effective valuation models and proper management of resources. Its accuracy depends upon the extent and quality of property data available. Because of this reason, it is recommended the usage of the GIs （geographic information system）, an automated system for collection and processing of the data necessary for valuation, as the first point of integration between two process of valuation, individual and mass valuation.

关键词： Real estate mass valuation GIs map value.

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饮水中氟含量与中老年人髋部骨折的关系

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地方病译丛 1994年第6期15卷 30-31页

作者： alma.,Ms 陈锋

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Influence of catalytic systems on process of model object hydrogenation

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International Journal of Coal science & Technology 2014年第1期1卷 88-92页

作者： Murzabek Ispolovich Baikenov Gulzhan Gausilevna Baikenova Bolat shaimenovich sarsembayev alma Baimagambetova Tateeva almas Tusipkhan Aisha Zharasovna Matayeva Karaganda state University Karaganda 100028Kazakhstan

On the basis of b-FeOOH,Fe(OA)_(3),Fe_(3)O_(4) iron and spherical catalysts NiO/siO_(2),Fe_(2)O_(3)/siO_(2) derived from slag waste coals of heating electrical stations,the hydrogenation of model polycyclic hydrocarbon at presence of nanodimensioned catalysts antracene was *** the example of conversion of anthracene,it was shown that upon release of hydrogenation of the product yield and degradation of polycyclic hydrocarbons in the hydrogenation,the mentioned catalyst systems appeared to be in the following order:nanoparticles b-FeOOH,Fe(OA)_(3) and Fe_(3)O_(4)[spherical catalysts NiO/siO_(2),Fe_(2)O_(3)/siO_(2)[commercial cobalt-molybdenum *** results showed that the catalysts studied are promising catalysts for the hydrogenation of polycyclic hydrocarbons and may be used for direct coal liquefaction.

关键词： Antracene Multi-ring hydrocarbons Nanocatalysts spherical catalysts Hydrogenation

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Implementation of smoking Ban in Mental Hospitals： Views of Patients, Relatives and staff

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Journal of Health science 2014年第11期2卷 538-544页

作者： Valentinas Maciulis Alina stigiene alma Buginyte Fausta Mickiene Vilnius University Universiteto 3 Vilnius L T-O1513 Lithuania Republican Vilnius Psychiatric Hospital Parko 15 Vilnius LT-11205 Lithuania

The law on Tobacco Control of the Republic of lithuania （issued in 1996） prohibits smoking in health care facilities. The security implementation is particularly problematic in psychiatric hospitals, where patients with adaptation problems are used to smoking feeling anxiety. Meanwhile, experts and scholars do not agree on the benefits or harm of smoking for individuals suffering from mental disorder. Republican Vilnius Psychiatric Hospital undertook an investigation of the attitudes of those mostly concerned--the patients, their relatives and the staff of the hospital, also of their views on the ways and feasibility to reduce smoking in the hospital. It was concluded that the main cause of patients＇ smoking is addiction, and hospital staff recognize that mental disorders contribute to the increase in dependency. Other reasons--smoking reduces tension, facilitates adaptation to environments, enhances contacts. Most patients and their relatives believe that smoking should not be banned, while the staff believes it should be prohibited in part by a variety of increasing of constraints. The most effective means to reduce smoking in the hospital would be rich leisure activities, education and professional help.

关键词： smoking ban mental illness smoking reduction inpatients.

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