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饱和度对电性各向异性的影响

石油物探译丛 1997年第3期 86-88页

作者： j.d.klein 邓惠中国新星石油公司西南石油局测井站

前言已经有很多调研人员研究了电性各向异性及其对电测井与地层评价的影响。他们之间有Frisch等(1993)、Bonnie(1993)、Bittar和Rodney(1994)、Luling等(1994)以及jiangquing等(1994)。但至今没有人慎重考虑电性各向异性对流体饱和度... 详细信息

前言已经有很多调研人员研究了电性各向异性及其对电测井与地层评价的影响。他们之间有Frisch等(1993)、Bonnie(1993)、Bittar和Rodney(1994)、Luling等(1994)以及jiangquing等(1994)。但至今没有人慎重考虑电性各向异性对流体饱和度的明显的依赖关系。

关键词：流体饱和度电性各向异性电阻率电测井

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钙和热处理能提高“安娜”苹果的贮藏性

国外农学（果树） 1992年第3期 38-41页

作者： S.Lurie j.d.klein 过国南

'安娜'苹果在采收后用3%的氯化钙溶液浸泡,或在38℃下热处理4天,或是二者结合处理,再在20℃条件下贮放1周,调查结果表明:钙和热相结合处理的果实品质保存最好,果肉硬度比单独处理的高。热处理对果皮色泽变黄和滴定酸下降的影响不明显,... 详细信息

'安娜'苹果在采收后用3%的氯化钙溶液浸泡,或在38℃下热处理4天,或是二者结合处理,再在20℃条件下贮放1周,调查结果表明:钙和热相结合处理的果实品质保存最好,果肉硬度比单独处理的高。热处理对果皮色泽变黄和滴定酸下降的影响不明显,但能保持果肉硬度。钙浸泡对果实品质没有影响,大多数果实的钙含量增高。在不同温度(0、20和38℃)下果实浸泡钙也是如此。两者结合处理与单项处理相比,果实细胞中的可溶性物质下降,而不溶性的果胶增多。另外,结合使用的可溶性果胶部分中的钙含量较低,这表明细胞壁对钙具有不同的束缚特性。

关键词：安娜苹果苹果贮藏钙热处理

Kinetics of glyphosate and aminomethylphosphonic acid sorption onto montmorillonite clays in soil and their translocation to genetically modified corn

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journal of Environmental Sciences 2024年第1期135卷 669-680页

作者： Meichen Wang Kelly j Rivenbark Timothy d Phillips Veterinary Physiology and Pharmacology College of Veterinary Medicine and Biomedical SciencesTexas A&M UniversityTX 77845USA

The co-occurrence of glyphosate(GLP)and aminomethylphosphonic acid(AMPA)in contaminated water,soil,sediment and plants is a cause for concern due to potential threats to the ecosystem and human health.A major route of exposure is through contact with contaminated soil and consumption of crops containing GLP and AMPA ***,clay-based sorption strategies for mixtures of GLP and AMPA in soil,plants and garden produce have been very *** this study,in vitro soil and in vivo genetically modified corn models were used to establish the proof of concept that the inclusion of clay sorbents in contaminated soils will reduce the bioavailability of GLP and AMPA in soils and their adverse effects on plant *** of chemical concentration(1–10 mg/kg),sorbent dose(0.5%-3%in soil and 0.5%-1%in plants)and duration(up to 28 days)on sorption kinetics were *** time course results showed a continuous GLP degradation to *** inclusion of calcium montmorillonite(CM)and acid processed montmorillonite(APM)clays at all doses significantly and consistently reduced the bioavailability of both chemicals from soils to plant roots and leaves in a dose-and time-dependent manner without detectable *** treated with 0.5%and 1%APM inclusion showed the highest growth rate(p≤0.05)and lowest chemical bioavailability with up to 76%reduction in roots and57%reduction in *** indicated that montmorillonite clays could be added as soil supplements to reduce hazardous mixtures of GLP and AMPA in soils and plants.

关键词： Glyphosate AMPA Adsorption Soil remediation Plant Hydroponic system

Generalized polynomial chaos expansion by reanalysis using static condensation based on substructuring

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Applied Mathematics and Mechanics(English Edition) 2024年第5期45卷 819-836页

作者： d.LEE S.CHANG j.LEE department of Automotive Engineering Hanyang UniversitySeoul 04763Republic of Korea School of Mechanical Engineering Chungnam National UniversityDaejeon 34134Republic of Korea department of Mechanical Robotics and Energy EngineeringDongguk UniversitySeoul 04620Republic of Korea

This paper presents a new computational method for forward uncertainty quantification(UQ)analyses on large-scale structural systems in the presence of arbitrary and dependent random *** method consists of a generalized polynomial chaos expansion(GPCE)for statistical moment and reliability analyses associated with the stochastic output and a static reanalysis method to generate the input-output data *** the reanalysis,we employ substructuring for a structure to isolate its local regions that vary due to random *** allows for avoiding repeated computations of invariant substructures while generating the input-output data *** substructuring with static condensation further improves the computational efficiency of the reanalysis without losing ***,the GPCE with the static reanalysis method can achieve significant computational saving,thus mitigating the curse of dimensionality to some degree for UQ under high-dimensional *** numerical results obtained from a simple structure indicate that the proposed method for UQ produces accurate solutions more efficiently than the GPCE using full finite element analyses(FEAs).We also demonstrate the efficiency and scalability of the proposed method by executing UQ for a large-scale wing-box structure under ten-dimensional(all-dependent)random inputs.

关键词： forward uncertainty quantification(UQ) generalized polynomial chaos expansion(GPCE) static reanalysis method static condensation substructuring

Use of Patient-Specific “4d” Tele-Education to Enhance Actual and Perceived Knowledge in Congenital Heart disease (CHd) Patients

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Congenital Heart disease 2024年第1期19卷 5-17页

作者： Molly Clarke Karin Hamann Nancy klein Laura Olivieri Yue-Hin Loke department of Inpatient Cardiology Boston Children’s HospitalBoston02115USA department of Cardiology Children’s National HospitalWashington20001USA department of Cardiology Noninvasive Cardiac ImagingUniversity of Pittsburgh Medical Center Children’s Hospital of PittsburghPittsburgh15224USA

Background:Patients with congenital heart disease(CHd)will transition to lifelong adult congenital cardiac ***,their structural heart disease is challenging to convey via two-dimensional *** study utilized a tele-educational environment,with personalized three-dimensional(3d)modeling and health details(3d+details=“4d”),to improve actual and perceived knowledge,both important components of transition readiness in CHd ***:Participants aged≥13 years with a history of CHd and cardiac magnetic resonance imaging(MRI)studies were *** MRI datasets were then used to segment and create 3d heart models(using Mimics,Materialize Inc.).Participantsﬁrst completed the MyHeart Questionnaire,a validated survey of actual knowledge.A tele-educational session was then scheduled,during which participants were shown a 3d model of a normal heart,followed by their personal 3d heart model and speciﬁc health *** then repeated the actual knowledge survey,in addition to questionnaires assessing perceived knowledge pre-and post-session,as well as a satisfaction ***:Twenty-two patients were *** knowledge increased from 75%±15%to 89%±20%(p=0.00043)and perceived knowledge increased inﬁve of seven *** knowledge correlated with perceived knowledge(r=0.608,pd the 3d model as“very satisfactory”and ninety-ﬁve percent ranked the educational session as“very help-ful”or“extremely helpful.”Conclusions:The use of“4d”tele-education increased both actual and perceived knowledge and may help improve transition readiness in CHd patients.

关键词： Congenital heart disease tele-education transition

Enhancing XRF sensor-based sorting of porphyritic copper ore using particle swarm optimization-support vector machine(PSO-SVM)algorithm

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International journal of Mining Science and Technology 2024年第4期34卷 545-556页

作者： Zhengyu Liu jue Kou Zengxin Yan Peilong Wang Chang Liu Chunbao Sun Anlin Shao Bern klein School of Civil and Resources Engineering University of Science and TechnologyBeijing 100083China Institute of Minerals Research University of Science and TechnologyBeijing 100083China State Key Laboratory of Mineral Processing Beijing 102628China Ansteel Group Mining Co.Ltd. Anshan 114000China Norman B.Keevil Institute of Mining Engineering University of British ColumbiaVancouverBC V6T 1Z4Canada

X-ray fluorescence(XRF)sensor-based ore sorting enables efficient beneficiation of heterogeneous ores,while intraparticle heterogeneity can cause significant grade detection errors,leading to misclassifications and hindering widespread technology *** classification models are crucial to determine if actual grade exceeds the sorting threshold using localized XRF *** studies mainly used linear regression(LR)algorithms including simple linear regression(SLR),multivariable linear regression(MLR),and multivariable linear regression with interaction(MLRI)but often fell short attaining satisfactory *** study employed the particle swarm optimization support vector machine(PSO-SVM)algorithm for sorting porphyritic copper ore ***-scale results showed PSO-SVM out-performed LR and raw data(Rd)models and the significant interaction effects among input features was *** poor input data quality,PSO-SVM demonstrated exceptional ***-scale sorting achieved 93.0%accuracy,0.24%grade increase,84.94%recovery rate,57.02%discard rate,and a remarkable 39.62 yuan/t net smelter return(NSR)increase compared to no *** improvements were achieved by the PSO-SVM model with optimized input combinations and highest data quality(T=10,T is XRF testing times).The unsuitability of LR methods for XRF sensor-based sorting of investigated sample is *** element selection and mineral association analysis elucidate element importance and influence mechanisms.

关键词： XRF sensor-based sorting PSO-SVM algorithm Copper ore pebble Receiver operating curve(ROC) Net smelter return(NSR)

Ageism: Millennial Persistence

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Advances in Aging Research 2024年第1期13卷 1-14页

作者： Alejandro klein Oxford Institute of Population Ageing University of Guanajuato Leon Mexico

This work develops the idea that is possible to affirm that beyond its nuances. Ageism has shown a surprising force of prevalence in western society. Nourished by mythical, empirical, ideological and health elements, it has been enormously successful in imposing an image of vulnerability, decrepitude and illness on older adults. Since 1969, when the first academic article on the subject was published, much has been written on the subject, but little progress has been made in terms of social and state policies and community awareness. When an attempt has been made to propose an alternative to decrepit (Aristotelian as we suggest in this paper) ageism, nothing has emerged but a new kind of ageism that has imposed the supposed need that the older adult “must” be “productive”, “young”, “vigorous”, posing the impossibility, in short, once again, of the older adult living spontaneously as an older adult.

关键词： Ageism Stereotypes Prejudices

Insm1:orchestrating cellular mimicry in the thymus medulla

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Cellular & Molecular Immunology 2024年第4期21卷 414-416页

作者： K.d.james j.E.Cowan UCL Institute of Immunity and Transplantation The Pears BuildingRowland Hill StreetLondonNW32PPUK

The thymus is the primary production site for a functional and self-tolerant T-cell *** establishment of immune tolerance is mediated by the generation and presentation of tissue-restricted self-antigens(TRAs)by medullary thymic epithelial cells(mTECs),which screen T-cell receptors for self-reactivity to eliminate autoreactive T *** studies have extended our understanding of mTEC heterogeneity by examining the mechanisms by which mTECs mimic the peripheral self[1].

关键词： medullary eliminate restricted

Mucopolysaccharidosis typeⅢB:a current review and exploration of the AAV therapy landscape

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Neural Regeneration Research 2024年第2期19卷 355-359页

作者： Courtney j.Rouse Victoria N.jensen Coy d.Heldermon Lacerta Therapeutics AlachuaFLUSA University of Florida College of Medicine GainesvilleFLUSA

Mucopolysaccharidoses typeⅢB is a rare genetic disorder caused by mutations in the gene that encodes for *** results in the aggregation of heparan sulfate polysaccharides within cell lysosomes that leads to progressive and severe debilitating neurological *** treatment options are expensive,limited,and presently there are no approved cures for mucopolysaccharidoses typeⅢ***-associated virus gene therapy has significantly advanced the field forward,allowing researchers to successfully design,enhance,and improve potential *** group recently published an effective treatment using a codon-optimized triple mutant adeno-associated virus 8 vector that restores N-acetyl-alpha-glucosaminidase levels,auditory function,and lifespan in the murine model for mucopolysaccharidoses typeⅢB to that seen in healthy ***,we review the current state of the field in relation to the capsid landscape,adeno-associated virus gene therapy and its successes and challenges in the clinic,and how novel adenoassociated virus capsid designs have evolved research in the mucopolysaccharidoses typeⅢB field.

关键词： adeno-associated virus central nervous system gene therapy heparan sulfate immune response mucopolysaccharidoses type IIIB N-acetyl-alpha-glucosaminidase newborn screening