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Late postoperative opacification of a new type hydrophilic acrylic intraocular lens

Advances in Ophthalmology Practice and Research 2023年第3期3卷 134-140页

作者： jin Xie Xinyi Zang Shilan Mao jie Sun Ting Liu Yunhai dai State Key Laboratory Cultivation Base Shandong Provincial Key Laboratory of OphthalmologyQingdaoShandongChina Eye Institute of Shandong First Medical University Qingdao Eye Hospital of Shandong First Medical UniversityQingdaoShandongChina Weifang Medical University WeifangShandongChina Shandong First Medical University JinanShandongChina People's Hospital of Yinan LinyiShandongChina

Background:To report the clinical consequences and laboratory characteristics of late postoperative opacification of a hydrophilic acrylic intraocular lens(US-860UV IOL)as well as the prognosis of IOL ***:Forty medical records(42 eyes)of patients with US-860UV IOL opacification reporting decreased or lost vision who underwent IOL explantation between 2017 and 2019 were *** IOLs were analyzed by slit-lamp examination,confocal microscopy,scanning electron microscopy(SEM)and energy-dispersive X-ray spectroscopy(EDS)at the Shandong Key Laboratory of Ophthalmology,Shandong Eye Institute,Shandong First Medical University,and Qingdao University of Science and Technology,Qingdao,***:The mean age of the 40 patients was 74.837.57(63–92)*** mean interval between cataract surgery and diagnosis of opacification was 32.388.76(17–48)*** diseases were found without statistical correlations,the most frequent being arterial hypertension,coronary heart disease,and diabetes mel*** acuity improved from 1.42±1.03 to 0.31±0.16(logMAR)after IOL ***,EDS and alizarin red staining showed uniformly distributed,diffuse,milk-white opacification,with calcium and phosphorus deposits on the optic and haptic surfaces that could be dissolved in 1%***:Calcium and phosphorus deposition was the main cause of hydrophilic acrylic US-860UV IOL opa*** replacement can safely and effectively improve the visual acuity of patients.

关键词： Hydrophilic IOL Opacification Calcium IOL replacement

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Recent Progress in Carbon-based Materials of Non-Noble Metal Catalysts for ORR in Acidic Environment

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Acta Metallurgica Sinica(English Letters) 2021年第7期34卷 885-899页

作者： jie Lian jin-Yu Zhao Xiao-Min Wang College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China Shanxi Key Laboratory of New Energy Materials and Devices Taiyuan University of TechnologyTaiyuan 030024China

Proton exchange membrane fuel cell(PEMFC)has important implications for the success of clean transportation in the *** of the key factors affecting the cost and performance of PEMFC is the cathode electrocatalyst for the oxygen reduction reaction(ORR)to overcome sluggish kinetics and instability in an acidic *** an essential component of the electrocatalyst,the support material largely determines the activity,mass transfer,charge transfer,and durability of the ***,the support material plays a critical role in the overall performance of the *** materials are widely used as electrocatalyst supports because of their high porosity,conductivity,chemical stability,and tunable ***,some new carbon-based materials with excellent structure have been introduced,such as carbon nanotubes,carbon nanowires,graphene,metal-organic framework(MOF)-derived carbon,and biomass-derived carbon *** with a variety of strategies,such as controllable construction of porous structures and surface defects,proper doping heteroatoms,the ingenious design of model electrocatalysts,and predictive theoretical calculation,a new reliable path was provided for further improving the performance of electrocatalysts and exploring the catalytic *** on the topic of carbon-based materials for ORR in acidic medium,this review summarizes the up-to-date progress and breakthroughs,highlights the factors affecting the catalytic activity and stability of ORR electrocatalysts in acids,and discusses their future application and development.

关键词： Carbon-based materials Non-noble metal electrocatalysts Acidic environment Oxygen reduction reaction Proton exchange membrane fuel cell

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Effect of austempering parameters on microstructure and mechanical properties of horizontal continuous casting ductile iron dense bars

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China Foundry 2015年第2期12卷 104-110页

作者： Chun-jie Xu Pan dai Zheng-yang Zhang Zhong-ming Zhang jin-cheng Wang Yong-hui Liu School of Materials Science and Engineering Xi'an University of Technology State Key Laboratory of Solidification Processing Northwestern Polytechnical University Shaanxi Hua An Continuous Casting Co. Ltd.

In the present research, the orthogonal experiment was carried out to investigate the influence of different austempering process parameters （i.e. austenitizing temperature and time, and austempering temperature and time） on microstructure and mechanical properties of LZQT500-7 ductile iron dense bars with 172 mm in diameter which were produced by horizontal continuous casting （HCC）. The results show that the major factors influencing the hardness of austempered ductile iron （ADI） are austenitizing temperature and austempering temperature. The fraction of retained austenite increases as the austenitizing and austempering temperatures increase. When austenitizing temperature is low, acicular ferrite and retained austenite can be efifciently obtained by appropriately extending the austenitizing time. The proper austmepering time could ensure enough stability of retained austenite and prevent high carbon austenite decomposition. The optimal mechanical properties of ADI can be achieved with the fol owing process parameters： austenitizing temperature and time are 866 ＆#176;C and 135 min, and austempering temperature and time are 279 ＆#176;C and 135 min, respectively. The microstructure of ADI under the optimal austempering process consists of ifne acicular ferrite and a smal amount of retained austenite, and the hardness, tensile strength, yield strength, elongation and impact toughness of the bars are HBW 476, 1670 MPa, 1428 MPa, 2.93%and 25.7 J, respectively.

关键词： horizontal continuous casting (HCC) ductile iron dense bars austempered ductile iron (ADI) microstructure and mechanical properties orthogonal test

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Syphilitic uveitis in HIV-positive patients: report of a case series, treatment outcomes, and comprehensive review of the literature

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International Journal of Ophthalmology(English edition) 2023年第8期16卷 1250-1259页

作者： Ning Xu Jia-Guo Yuan Qin-jin dai Chao Yuan Yan He Ting-Shuai Jiang jie Zhu Guangzhou Twelfth People’s Hospital Guangzhou Medical UniversityGuangzhou 510620Guangdong ProvinceChina Guangzhou Eighth People’s Hospital Guangzhou Medical UniversityGuangzhou 510440Guangdong ProvinceChina Guangzhou Women and Children’s Medical Center Guangzhou Medical UniversityGuangzhou 510623Guangdong ProvinceChina Xijing Hospital Fourth Military Medical UniversityXi’an 710032Shaanxi ProvinceChina

AIM:To report the clinical characteristics,treatment and outcomes of active syphilitic uveitis in human immunodeficiency virus(HIV)positive patients and compare them with the previously published ***:Retrospective analysis of the case series from an infectious disease center in southern China was *** review of previously published cases of HIV positive syphilitic uveitis was conducted using the PubMed and Web of Science databases and the references listed in the identified ***:Twelve HIV positive patients with active syphilitic uveitis were *** were male,with age of 36.3y(range 27 to 53y).Five(41.7%)had a history of syphilis,and three of them had received anti-syphilis *** manifestations included corneal epithelial defect(13%),complicated cataract(17.4%),vitreous opacity(82.6%),optic disc edema(26.1%),macular edema(30.4%),neuro-retinitis(43.5%),and retinal hemorrhage(26.1%).After standardized syphilitic treatment,intraocular inflammation was reduced and vision improved in all *** literature review summarizes 105 previously reported cases of HIV positive syphilitic *** serum rapid plasma regain(RPR)titers may be associated with severe uveitis and poor *** with penicillin,ceftriaxone sodium,or penicillin plus benzylpenicillin instead of using benzylpenicillin alone can significantly improve bestcorrected visual acuity(BCVA)in HIV positive ocular syphilis ***:For HIV positive syphilitic uveitis patients,prompt diagnosis and appropriate treatment and follow-up are *** our series,the clinical manifestations are *** patients treated by penicillin G or long-acting penicillin before may still develop syphilitic *** who relapse after long-term penicillin treatment can still benefit from penicillin G.

关键词： syphilis uveitis human immunodeficiency virus neurosyphilis regimen literature review

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Submillimeter/millimeter observations of the high-mass star forming region IRAS 22506+5944

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Research in Astronomy and Astrophysics 2010年第2期10卷 151-158页

作者： jin-Long Xu Jun-jie Wang National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China NAOC-TU Joint Center for Astrophysics Lhasa 850000 China

The mapping observations of CO J -- 2-1, CO J = 3- 2, 13CO J = 2-1 and 13CO J -- 3 - 2 lines in the direction of IRAS 22506＋5944 have been made. The results show that the cores in the J = 2 - i transition lines have a similar morphology to those in the J -- 3 - 2 transition lines. Bipolar molecular outflows are verified. The prior IRAS 22506＋5944 observations indicated that two IRAS sources and three H20 masers were located close to the peak position of the core. One of the IRAS sources may be the driving source of the outflows. In addition, the H20 masers may occur in relatively warm environments. The parameters of the dense core and outflow, obtained by the LTE method, indicate that IRAS 22506＋5944 is a high-mass star formation region.

关键词： ISM: jets and outflows -- ISM: kinematics and dynamics -- ISM molecules -- stars: formation

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^(12)CO J=2-1 and^(12)CO J=3-2 observations toward the high-mass protostellar candidate IRAS 20188+3928

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Research in Astronomy and Astrophysics 2013年第1期13卷 39-46页

作者： jin-Long Xu Jun-jie Wang National Astronomical Observatories Chinese Academy of Sciences NAOC-TU Joint Center for Astrophysics

We have carried out observations of 12CO J=2-1 and 12CO J=3-2 to- ward the high-mass protostellar candidate IRAS 20188＋3928. Compared with previ- ous observations, the 12CO J=2-1 and 12CO J=3-2 lines both have asymmetric pro- files with an absorption dip. The velocity of the absorption dip is ~ 1.0 km s-1. The spectral shape may be caused by rotation. The velocity-integrated intensity map and position-velocity diagram of the 12CO J=2-1 line present an obvious bipolar com- ponent, further verifying that this region has an outflow motion. This region is also associated with an HII region, an IRAS source, and an H20 maser. The H20 maser has the velocity of 1.1 km s-1. Compared with the components of the outflow, we find that the H20 maser is not associated with the outflow. Using the large velocity gradi- ent model, we concluded that possible averaged gas densities of the blueshifted lobe and redshifted lobe are 1.0x 105 cm-3 and 2.0x 104 cm-a, while kinetic temperatures are 26.9 K and 52.9 K, respectively. Additionally, the outflow has a higher integrated intensity ratio （Ico J=3 - 2/Ico J=2 - 1）.

关键词： ISM: individual (IRAS 20188+3928) -- ISM: kinematics and dynamics-- ISM: molecules -- stars: formation

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Neutronic analysis of silicon carbide cladding accident-tolerant fuel assemblies in pressurized water reactors

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Nuclear Science and Techniques 2019年第3期30卷 105-113页

作者： Zhi-Xiong Tan jie-jin Cai School of Electric Power South China University of Technology

In resonance with the Fukushima daiichi Nuclear Power Plant accident lesson, a novel fuel design to enhance safety regarding severe accident scenarios has become increasingly appreciated in the nuclear power industry. This research focuses on analysis of the neutronic properties of a silicon carbide(SiC) cladding fuel assembly, which provides a greater safety margin as a type of accident-tolerant fuel for pressurized water reactors. The general physical performance of SiC cladding is explored to ascertain its neutronic performance. The neutron spectrum, accumulation of ^(239)Pu, physical characteristics,temperature reactivity coefficient, and power distribution are analyzed. Furthermore, the influences of a burnable poison rod and enrichment are explored. SiC cladding assemblies show a softer neutron spectrum and flatter power distribution than conventional Zr alloy cladding fuel assemblies. Lower enrichment fuel is required when SiC cladding is adopted. However, the positive reactivity coefficient associated with the SiC material remains to be offset. The results reveal that SiC cladding assemblies show broad agreement with the neutronic performance of conventional Zr alloy cladding fuel. In the meantime, its unique physical characteristics can lead to improved safety and economy.

关键词： Accident-tolerant fuels Silicon carbide cladding Neutronic characteristics Pressurized water reactor

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Judging or setting weight steady-state of rational Bézier curves and surfaces

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Applied Mathematics(A Journal of Chinese Universities) 2014年第4期29卷 391-398页

作者： CAI Hong-jie WANG Guo-jin Department of Mathematics Zhejiang University Mathematics and Applied Mathematics Foshan University

Many works have investigated the problem of reparameterizing rational B^zier curves or surfaces via MSbius transformation to adjust their parametric distribution as well as weights, such that the maximal ratio of weights becomes smallerthat some algebraic and computational properties of the curves or surfaces can be improved in a way. However, it is an indication of veracity and optimization of the reparameterization to do prior to judge whether the maximal ratio of weights reaches minimum, and verify the new weights after MSbius transfor- mation. What＇s more the users of computer aided design softwares may require some guidelines for designing rational B6zier curves or surfaces with the smallest ratio of weights. In this paper we present the necessary and sufficient conditions that the maximal ratio of weights of the curves or surfaces reaches minimum and also describe it by using weights succinctly and straightway. The weights being satisfied these conditions are called being in the stable state. Applying such conditions, any giving rational B6zier curve or surface can automatically be adjusted to come into the stable state by CAD system, that is, the curve or surface possesses its optimal para- metric distribution. Finally, we give some numerical examples for demonstrating our results in important applications of judging the stable state of weights of the curves or surfaces and designing rational B6zier surfaces with compact derivative bounds.

关键词： rational Bezier curve/surface Mobius transformation reparameterization stable state.

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Collision Attacks against AEZ-PRF for Authenticated Encryption AEZ

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China Communications 2018年第2期15卷 46-53页

作者： Tairong Shi Chenhui jin jie Guan Information Science and Technology Institute Science Avenue High-Tech Zone Zhengzhou Henan 450001 China

AEZ is an AES-based authenticated encryption submitted to the ongoing CAESAR competition and was presented at Eurocrypt2015 with AEZ v3. There are three models for AEZ, AEZ-core, AEZ-tiny and AEZ-prf. In this paper, we consider the security of AEZprf for AEZ v4.2, the latest version of *** major finding is a collision of any 256-bit associated data for AES-prf. Then we launch collision attacks in a quantum setting and a classical setting respectively under different assumptions. In the quantum setting, by Simon's quantum algorithm, we amount a forgery with O(n) quantum superposition queries and an overwhelming probability close to *** the classical setting, one with the key of AEZ-prf can also construct the forgeries. Our results show that the AEZ-prf models of AEZ v4.2 is not secure in both the quantum setting and classical world. Furthermore, our results can also be applied to AEZ v3, which has been published on Eurocrypt 2015. As far as we know, no cryptanalysis of AEZ v4.2 has been published so far.

关键词： CAESAR competition authen-ticated encryption AEZ collision attacks quantum attacks

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Sea surface wind speed retrieval under rain with the HY-2 microwave radiometer

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Acta Oceanologica Sinica 2017年第7期36卷 32-38页

作者： WANG jin ZHANG jie WANG jing College of Physics Qingdao University The First Institute of Oceanography State Oceanic Administration College of Information Science and Engineering Ocean University of China

As rain drops change the radiation and scattering characteristic of the oceans and the atmosphere, the wind speed measuring by spaceborne remote sensors under rainy conditions remains challenging for years. On the basis of a microwave radiometer（RM） loaded on HY-2 satellite, the sensitivity of some brightness temperature（TB）channels to a rain rate and the wind speed are analyzed. Consequently, two TB combinations which show minor sensitivity to rain are obtained. Meanwhile, the sensitivity of the TB combination to the wind speed is even better to the original TB channel. On the basis of these TB combinations, a wind speed retrieval algorithm is developed and compared with Wind Sat all-weather wind speed product, HY-2 RM original wind speed product and buoy in situ data. The wind speed retrieval accuracy is better than 2 m/s for rainy conditions, which is evidently superior to HY-2 RM original product. The applicability of this new algorithm is testified for the wind speed measuring in rainy weather with HY-2 RM.

关键词： HY-2 microwave radiometer rain wind speed retrieval algorithm brightness temperature

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