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小型风能／太阳能蓄电池系统控制

风力发电 1989年第3期6卷 29-34页

作者： todd.,RW 沈明追

Unraveling biochar surface area on structure and heavy metal removal performances of carbothermal reduced nanoscale zero-valent iron

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Journal of Bioresources and Bioproducts 2023年第4期8卷 388-398页

作者： Tharindu N.Karunaratne Prashan M.Rodrigo Daniel O.Oguntuyi todd.E.Mlsna Jilei Zhang Xuefeng Zhang Department of Sustainable Bioproducts Mississippi State UniversityMississippi StateMS 39762USA Department of Chemistry Mississippi State UniversityMississippi StateMS 39762USA

Carbothermal reduction using biochar(BC)is a green and effective method of synthesizing BCsupported nanoscale zero-valent iron(nanoFe^(0))***,the effect of BC surface area on the structure,distribution,and performance such as the heavy metal uptake capacity of nanoFe^(0)particles remains *** stover-based BCs with different surface areas(1.7−1472 m^(2)/g)were prepared in this *** have been used for in-situ synthesis BCs-supported nanoFe^(0)particlesthrough carbothermal reduction of ferrous *** BCs-supported nanoFe^(0)particles were found to be covered with graphene shells and dispersed onto BC surfaces,forming the BC-supported graphene-encapsulated nanoFe^(0)(BC-G@Fe^(0))*** graphene shells covering the nanoFe^(0)particles were formed because of gaseous carbon evolved from biomass carbonization reacting with iron oxides/iron *** BC surface area decreased the average diameters of nanoFe^(0)particles,indicating a higher BC surface area alleviated the aggregation of nanoFe^(0)particles,which resulted in higher heavy metal uptake *** the optimized condition,BC-G@Fe^(0)composite exhibited uptake capacities of 124.4,121.8,254.5,and 48.0 mg/g for Cu^(2+),Pb^(2+),Ag^(+),and As^(3+),respectively(pH 5,25℃).Moreover,the BC-G@Fe^(0)composite also demonstrated high stability for Cu^(2+)removal from the fixed-bed continuous flow,in which 1 g of BC-G@Fe^(0)can work for 120 h in a 4 mg/L Cu^(2+)flow continually and clean 28.6 L Cu^(2+)contaminated ***,the BC-G@Fe^(0)composite can effectively immobilize the bioavailable As^(3+)from the contaminated soil,i.e.,5%(w)of BC-G@Fe^(0)composite addition can immobilize up to 92.2%bioavailable As^(3+)from the contaminated soil.

关键词： Carbothermal reduction Nanoscale zero-valent iron Heavy metal Fix-bed sorption Soil remediation

Kinetics of Molecular Recognition Mediated Nanoparticle Self-Assembly

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Nano Research 2009年第1期2卷 78-84页

作者： Chinmay Soman todd.Giorgio Interdisciplinary Program in Materials Science Vanderbilt University201 West End AvenueNashvilleTN 37240USA Department of Biomedical Engineering Vanderbilt University201 West End AvenueNashvilleTN 37240USA

Nanoscale quantum dot-antibody conjugates have been shown to self-assemble to form micron-scale aggregates in the presence of specific proteomic *** self-assembly process exhibits sigmoidal kinetics,suggesting that nucleation limits ***-assembly kinetics in this study is characterized by flow cytometric analysis of the aggregation reaction over time.A range of physiologically relevant concentrations of the protein angiopoietin-2,a candidate cancer biomarker,are incubated with quantum dots conjugated with a polyclonal mixture of anti-angiopoietin-2 *** concentration modulates the slopes and inflection times of the sigmoidal kinetics *** understanding of self-assembly kinetics in this system may lead to improvements in sensitivity and specificity of this novel proteomic biomarker detection technique and improve the screening,diagnostics,and therapy response monitoring for cancers and other *** approach to studying the kinetics of nanoparticle self-assembly may also provide a valuable tool for understanding the fundamental characteristics of nanoscale particle aggregation.

关键词： Quantum dot self-assembly kinetics proteomics diagnostics has

Distribution of Primitive λ-Roots of Composite Moduli II

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Chinese Annals of Mathematics,Series B 2006年第5期27卷 549-552页

作者： Zhiyong ZHENG todd.COCHRANE Department of Mathematical Sciences Tsinghua University Beijing 100084 China Department of Mathematics Kansas State University Manhattan Kansas 66506 USA.

We improve estimates for the distribution of primitiveλ-roots of a composite modulus q yielding an asymptotic formula for the number of primitiveλ-roots in any interval I of length |I| >> q1/2+c. Similar results are obtained for the distribution of ordered pairs (x,x-1) with x a primitive A-root, and for the number of primitiveλ-roots satisfying inequalities such as |x - x-1| < B.

关键词： λ根本原根渐近公式复合模

Protein-based profiling of the human IgA1 clonal repertoire revealed shared clones of serum polymeric IgA1 and milk secretory IgA1

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Cellular & Molecular Immunology 2023年第3期20卷 305-307页

作者： Jan Novak Matthew B.Renfrow R.Glenn King Colin Reily todd.J.Green Department of Microbiology University of Alabama at BirminghamBirminghamALUSA Department of Biochemistry and Molecular Genetics University of Alabama at BirminghamBirminghamALUSA

Human adaptive immunity involves the production and secretion of antibodies by differentiated B cells(ie.,antibody-secreting cells,also called plasma cells)in response to *** secreted antigen-specific antibodies are immunoglobulins that are present at substantial concentrations in blood,mucosal secretions,and breast ***,human immunoglobulins consist of two identical heavy(H)chains and two identical light(L)chains that are connected by disulfide bridges to form a homodimer of heterodimers(ie.,H+Ll2).Each heterodimer consists of one H chain linked with one L chain,whereas the homodimer is formed by linking two H chains *** genes for both the L and H chains are encoded by ligated gene segments that are genetically rearranged during V(D)J recombination,a process that endows each B cell with a unique receptor,giving rise to the enormous diversity of the B-cell antigen receptor repertoire.

关键词： IgA1 immunity chains

New Methodological Approach to Investigation of Kinetics of REE Extraction in Nonstationary Conditions

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Journal of Rare Earths 2007年第4期25卷 385-391页

作者： Kopyrin A A Fomichev A A Afonin M A todd.T A Saint-Petersburg Institute of Technology Idaho National Laboratory

The influence of periodical oscillations of the temperature on extraction and stripping processes in the extraction systems was studied. Two extraction systems were investigated：（1） 6 mol · L^-1 NaNO3-Nd（NO3）3-Pr（NO3）3-TBP kerosene and （2） [Nd（NO3）3 · 3TBP] -[ Pr（NO3）3 · 3TBP] -kerosene - 0.1 mol · L^-1 HNO3. Mathematical modeling of the nonstationary membrane extraction has been enhanced by including the dependence of the extraction rate constants on temperature. The values of activation energy for direct and reverse extraction and stripping reactions of Pr and Nd were calculated from experimental temporal dependencies of metal concentration and temperature by solving the reverse kinetics problem using the proposed mathematical model, A series of experiments with periodical oscillations of the temperature on the extraction system for the separation of rare earth elements （REE） using bulk liquid membrane between two extractors were performed. The mathematical model adequately describes the experimental data. The optimization of the extraction process for separation of REE by liquid membrane, under the influence of periodical oscillation of the temperature, was made based on the extraction rate constants and activation energies. The optimal conditions of separation by liquid membrane were found： frequency and amplitude of thermal oscillations, liquid membrane flow rate, and optimal ratio between organic and aqueous phase in extractors.

关键词： kinetics extraction non-stationary rare earths

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舰载自卫兆瓦级自由电子激光器概念

强激光技术进展 1998年第4期8卷 26-33页

作者： todd.,AM Cols.,WB

高效率兆瓦级自由电子激光定向能武器系统具有高功率运行的潜力，并可调谐至所有红外波长，有希望满足未来海军舰船对舰载自卫武器的要求。为了满足舰载武器的集装和原动力的限制超导射频加速器驱动的自由电子激光器能达到的功率效率和... 详细信息

高效率兆瓦级自由电子激光定向能武器系统具有高功率运行的潜力，并可调谐至所有红外波长，有希望满足未来海军舰船对舰载自卫武器的要求。为了满足舰载武器的集装和原动力的限制超导射频加速器驱动的自由电子激光器能达到的功率效率和高加速梯度很有吸引力。

关键词：自由电子激光器舰载武器激光武器

Upper bounds on a two-term exponential sum

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Science China Mathematics 2001年第8期44卷 1003-1015页

作者： todd.COCHRANE 郑志勇 Department of Mathematics Kansas State University Manhattan KS 66506 USA email: cochrane @ math.ksu. edu

We obtain upper bounds for mixed exponential sums of the type S(x,f,pm) =bx)where pm is a prime power with m ≥ 2 and x is a multiplicative character 2(mod pm). If x is primitive or p\( a, b) then we obtain ｜ S(x, f, pm) ｜ ≤2np2-3m. If x is of conductor p and p\( a, b) then we get the stronger bound ｜ S(x, f, pm) ｜ ≤ npm/2.

关键词：指数的和原始特性 weilsbound

Ophthalmic manifestations of Cryptococcus gattii species complex:a case series and review of the literature

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International Journal of Ophthalmology(English edition) 2022年第1期15卷 119-127页

作者： Grace A.McCabe Jack W.McHugh todd.Goodwin Douglas F.Johnson Anthony Fok Thomas G.Campbell Department of Ophthalmology the Royal Melbourne HospitalMelbourneVictoria 3050Australia Department of Internal Medicine Mayo ClinicRochesterMinnesota 55902USA James Cook University TownsvilleQueensland 4811Australia NQ Eye Foundation TownsvilleQueensland 4811Australia Department of Infectious Disease the Royal Melbourne HospitalMelbourneVictoria 3050Australia Department of Neurology the Royal Melbourne HospitalMelbourneVictoria 3050Australia Centre for Eye Research Australia East MelbourneVictoria 3002Australia Ophthalmology Department of Surgerythe University of MelbourneMelbourneVictoria 3010Australia

AIM:To report 4 cases of Cryptococcus gattii(***)species complex infection with diverse ophthalmic manifestations,and to review the literature to examine pathobiology of disease,classical ophthalmic presentations and outcomes,and treatment modalities for this emerging ***:Cases of *** meningoencephalitis with ophthalmic manifestations were identified via chart review at two institutions in Australia and one institution in the mid-west region of the United States and are reported as a case ***,a MEDLINE literature review was conducted to identify all reported cases of *** with ophthalmic manifestations from *** were reviewed and tabulated,together with our series of patients,in this ***:Four cases of *** with ophthalmic manifestations are presented;three from Australia and one from the USA.A literature review identified a total of 331 cases of *** with visual *** majority of cases occurred in immunocompetent *** vision and diplopia were the most common presenting symptoms,with papilloedema the most common sign,reported in 10%-50%of *** loss was reported in 10%-53%of cases,as compared to rates of visual loss of 1%-9%in *** *** intracranial pressure,cerebrospinal fluid(CSF)fungal burden,and abnormal neurological exam at presentation correlated with poor visual *** mainstays of treatment are anti-fungal agents and aggressive management of intracranial hypertension with serial lumbar *** diversion procedures should be considered for refractory *** and mannitol are associated with high complication rates,and adjuvant corticosteroids have demonstrated higher mortality rates;these treatments should be ***:Permanent visual loss represents a devastating yet potentially preventable sequelae of *** *** hypertension needs to be recognised early and aggressively ***

关键词： Cryptococcus Cryptococcus gattii cryptococcosis ophthalmic manifestation