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characterizing receiver clock behaviors onboard Low Earth Orbiters:A case study of gRAcE satellites

geodesy and geodynamics 2019年第4期10卷 276-281页

作者： Tzu-Pang Tseng c.K.Shum Ting-Yi Yang geoscience Australia Jerrabomberra Ave&Hindmarsh DriveSymonstonACT2609Australia Division of geodetic Science School of Earth SciencesThe Ohio State University125 South Oval MallColumbusOH43210USA Institute of geodesy and geophysics Chinese Academy of SciencesWuhanHubei430077China

Accurate estimation of clocks, for example for the gravity Recovery And climate Experiment(gRAcE)twin-satellites, is a critical part of precise orbit determination(POD) that ensures temporal gravity inversion. characterizing the periodic variations of the receiver clocks is critical for precise clock modeling and prediction. In this study, the receiver clock is estimated using two different POD procedure: kinematic and reduced-dynamic approaches. choices and the number of orbital parameters estimated in POD process affect the clock estimates, e.g., there are 8895 and 34,560 total parameters in the reduced-dynamic and kinematic approaches, respectively. In the both cases, the periodic variations of gRAcE receiver clock are mainly dominated by the gPS orbit period, as well as once-(1-pr) and twiceper-revolution(2-pr) effects. here the 1-pr effect is coupled with the relativistic effect, resulting in a difficulty to separate both signals. The clock amplitudes caused by the gPS orbit period, 1-pr and 2-pr are about 0.1, 0.03 and 0.01 ns, respectively. The gPS orbit period is almost one order magnitude larger than the 1-and 2-pr effect. The 0.1-ns amplitude of the 12-h periodic variation is equivalent to a 3-cm error in range. Such a systematic error should be considered in the receiver clock modeling for both the improvement of positioning accuracy and the reduction of number of unknown parameters, if the precise point positioning(PPP) technique is used for the orbit determination of the gRAcE.

关键词： gPS gRAcE Precision orbit determination clock modeling

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KINK IN NUcLEAR PhASE DIAgRAM-A SIgNAL OF PhASE TRANSITION?

KINK IN NUCLEAR PHASE DIAGRAM-A SIGNAL OF PHASE TRANSITION?

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The 19th International conference on Ultra-Relativistic Nucleus-Nucleus collisions

作者： E. Zabrodin L. Bravina I. Arsene M.S. Nilsson K. Tywoniuk J. Bleibel g. Burau A. Faessler c. Fuchs M. Bleicher h. Stcker Department of Physics University of OsloN-0316 OsloNorway Department of Physics University of OsloN-0316 OsloNorway Department of Physics University of OsloN-0316 OsloNorway Department of Physics University of OsloN-0316 OsloNorway Department of Physics University of OsloN-0316 OsloNorway Institute for Theoretical Physics University of TübingenD-72076 TübingenGermany Institute for Theoretical Physics University of TübingenD-72076 TübingenGermany Institute for Theoretical Physics University of TübingenD-72076 TübingenGermany Institute for Theoretical Physics University of TübingenD-72076 TübingenGermany Institute for Theoretical Physics University of FrankfurtD-60438 Frankfurt a.M.Germany Institute for Theoretical Physics University of FrankfurtD-60438 Frankfurt a.M.Germany

＜正＞The relaxation to chemical and thermal equilibrium in the central zone of relativistic heavy-ion collisions at energies from AgS to SPS is studied within the microscopic transport model. To decide whether or not the equilibration takes place particle yields and energy spectra from the central cell （of fixed volume V=125 fm3） are compared to predictions of the statistical model. We found that kinetic, thermal, and chemical equilibration is nearly approached for the period of 10-18 fm/c . Within this time the expansion of matter in the cell proceeds with constant entropy per baryon ratio. For the bombarding energies around 40 AgeV the system crosses the critical point in the T-μB

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Detection and Local Staging of Prostate cancer by 68ga-PSMA-PET/cT, comparison with mpMRI and histopathology

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Advances in Molecular Imaging 2020年第3期10卷 15-29页

作者： F. Intema A. Kooistra M. c. Vermeulen R. M. hoeben A. M. van de Berk A. Lont W. Dingemans L. M. Andrews g. K. Lammers J. M. h. de Klerk Department of Radiology and Nuclear Medicine Meander Medical Centre Amersfoort The Netherlands Department of Urology Meander Medical Centre Amersfoort The Netherlands Department of Pathology Meander Medical Centre Amersfoort The Netherlands hospital Pharmacy Meander Medical Centre Amersfoort The Netherlands

Introduction: 68ga-PSMA-PET/cT has proven its value in prostate cancer with high positive predictive value for lymph node metastasis and superior detection of distant metastasis. There is growing evidence that 68ga-PS... 详细信息

g>Introduction:g> 68ga-PSMA-PET/cT has proven its value in prostate cancer with high positive predictive value for lymph node metastasis and superior detection of distant metastasis. There is growing evidence that 68ga-PSMA- PET/cT has high sensitivity for detection of tumor lesions in the prostate as well. Studies thus far have mainly been performed in patients prior to prostatectomy. Aim of this study is to evaluate diagnostic accuracy in a mixed population of men with increased risk of prostate cancer and evaluate diagnostic possibilities with respect to extra-capsular extension and seminal vesicle invasion. g>Methods:g> The population consisted of a retrospectively included sequential cohort of 69 patients with 68ga-PSMA-PET/cT and mpMRI available. 68ga-PSMA-PET/cT was re-evaluated by two readers blinded for mpMRI and clinical information. Likelihood of tumour presence, extra-prostatic extension and seminal vesicle invasion was scored on 5-point Likert scale and localized schematically. Results were compared with mpMRI. Available pathological outcome served as gold standard. SUVmax of index lesions was measured and correlated to index tumor gleason grade. g>Results:g> clinically significant prostate cancer (gleason ≥ 3 + 4) was detected in 57 (83%) of 69 patients. Diagnostic accuracy was 89% for PET reader 1, 93% for PET reader 2 and 86% for mpMRI. Lesion concordance of 68ga-PSMA-PET/cT and mpMRI was 97%. SUVmax of the index lesion correlated to gleason grade. Sensitivity for extracapsular extension in the prostatectomy group was 62% for PET reader 1, 33% for PET reader 2 and 50% for mpMRI. Specificity was 62% for PET reader 1, 100% for PET reader 2 and 69% for mpMRI. g>conclusion:g> ga68-PSMA-PET shows high accuracy in the detection of tumor lesions in the prostate. Results on evaluating extra-capsular extension and seminal vesicle invasion are comparable to mpMRI. This study adds to the increasing evidence th

关键词： Prostate cancer Detection Local Staging 68-gallium-Prostate Specific Membrane Antigen-Positron Emission Tomography Multiparametric Magnetic Resonance Imaging

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诱发斑点小球腔菌假囊壳生成的条件

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菌物学报 1987年第4期 236-241页

作者：徐孝华,c.B.hILL,P.h.WILLIAMS 北京农业大学威斯康星大学威斯康星大学美国美国

自然界甘蓝茎点霉（Phoma lingam）的有性世代为斑点小球腔菌Leptosphaeriamaculans通常形成于甘蓝属植株的越冬残茎上。在实验室内其有性阶段不易培养或需要较长的时间,而且形成假囊壳的百分率也很低。为了在实验室内能短期诱发大量**... 详细信息

自然界甘蓝茎点霉（Phoma lingam）的有性世代为斑点小球腔菌Leptosphaeriamaculans通常形成于甘蓝属植株的越冬残茎上。在实验室内其有性阶段不易培养或需要较长的时间,而且形成假囊壳的百分率也很低。为了在实验室内能短期诱发大量***的假囊壳,本实验研究了该菌假囊壳生成的条件,创造了双层培养方法。自澳大利亚采集到有该菌假囊壳的芸苔（Brassica napus）残基,分离得到子囊孢子单孢后代数十株,同时用保存的已知交配型665（+）和666（-）为材料,研究了（+）(-)配对结合的环境条件。实验结果表明16℃的温度,近紫外光照射（黑光灯）和V?麦杆琼脂培养基上可以产生少量的假囊壳。但是,若配合以双层培养,则在培养4周后可产生大量成熟的假囊壳。实验还确定了该菌在性细胞形成、交配、子囊形成和成熟等阶段对环境因子都有不同的要求。双层培养对假囊壳的发育有重要作用。前期菌体营养生长与后期假囊壳的成熟紧密相关。

关键词：斑点小球腔菌甘蓝茎点霉假囊壳

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Does carrier fluid reduce low flow drug infusion error from syringe size?

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World Journal of clinical Pediatrics 2020年第2期9卷 17-28页

作者： Zachary c Madson Sitaram Vangala grace T Sund James A Lin Pediatric hospitalist Medicine Lutheran Children's HospitalFort WayneIN 46804United States Medicine Statistics core David Geffen School of Medicine at UCLALos AngelesCA 90095United States Department of Nursing UCLA Mattel Children's HospitalLos AngelesCA 90095United States Department of Pediatrics David Geffen School of Medicine at UCLALos AngelesCA 90095United States

BAcKgROUND critically ill neonates and pediatric patients commonly require multiple low flow *** limitations are imposed by small body habitus and comorbidities like cardiopulmonary disease,renal failure,or fluid *** access is limited by diminutive *** fluids or parenteral nutrition in conjunction with actively titrated infusions such as insulin,fentanyl,prostaglandins,inotropes and vasopressors may necessitate simultaneous infusions using a single lumen to maintain vascular catheter *** requirement for multiple titratable infusions requires concentrated medications at low flows,rather than more dilute drugs at higher flows that in combination may volume overload small *** To determine whether carrier fluid reduces variability that variability of low flow drug infusions is proportional to syringe size in pediatric critical *** We assessed concentrations of orange“drug”in a 0.2 mL/h low flow clinical model with blue dyed carrier fluid at 5 mL/h,using 3-,10-,or 60-mL syringes.A graduated volumetric pipette was used to measure total *** time to target concentration was 30,21,and 46 min in 3-,10-,and 60-mL syringes,respectively(P=0.42).After achieving target concentration,more dilute drug was delivered by 60-mL(Pges(P=0.04)compared to 3-mL *** overdoses were observed during the initial 45 min of infusion in 10-and 60-mL *** volumes infused after target concentration were less in the 60-mL condition compared to 3-mL(Pcts models demonstrated lesser delivered drug concentrations in the initial 30 min by 3-mL compared to 10-and 60-mL syringes(P=0.005 and Pctively)but greater drug concentrations and total infused drug in the subsequent 30-60 and 60-90 min intervals with the 3-and 10-mL compared to 60-mL *** With carrier fluid,larger syringes were associated with significantly

关键词： Infusion pumps Intensive care Neonatal Nursing research Patient safety Spectrophotometry Syringes

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隐身人

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2020年

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六年級幾何課的計劃

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数学通报 1953年第9期 8-20+7页

作者： h.c.伊斯托米那吴鸿迈

自中央教育部公佈試行中學數學大綱草案後,有些教師感到初二幾何授課時数不够,现特翻譯這篇計劃供大家參考;本計劃共66課。每課在教室進行一節的時間,文中字母「K.」是代表A. Π. 吉西列夫幾何課本;「P.」是代表h. 列伯金習题集,必须聲... 详细信息

自中央教育部公佈試行中學數學大綱草案後,有些教師感到初二幾何授課時数不够,现特翻譯這篇計劃供大家參考;本計劃共66課。每課在教室進行一節的時間,文中字母「K.」是代表A. Π. 吉西列夫幾何課本;「P.」是代表h. 列伯金習题集,必须聲明:运篇譯文是只供參考;且譯者學識浅陋,錯誤難免,希大家指正。

关键词：圆心角三角板

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英国国际私法的性质、范围及其晚近的发展

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中外法学 1983年第1期 38-42+4页

作者： J·h·c·莫里斯董立坤

一、概论法律冲突法是国内私法中处理含有"涉外因素"那部分的法律。所谓"涉外因素",就是指与英国法不同的某些法律制度的一种联系。这样的一种联系可以存在于:例如,在外国缔结或履行的契约;在外国构成的侵权行为;在外国的财产;或是诉讼... 详细信息

一、概论法律冲突法是国内私法中处理含有"涉外因素"那部分的法律。所谓"涉外因素",就是指与英国法不同的某些法律制度的一种联系。这样的一种联系可以存在于:例如,在外国缔结或履行的契约;在外国构成的侵权行为;在外国的财产;或是诉讼当事人不是英国人。在法律冲突法中,一个涉外因素和一个外国国家,是指一个非英国的因素和一个英格兰

关键词：法律冲突法国际公法法国法英国法住所地法国际私法

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苏联统一图书馆网的发展

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中国图书馆学报 1988年第3期 43-49+42页

作者： h.c.卡尔塔绍夫滕义勇苏联国立列宁图书馆馆长、教育学博士

建立统一的图书馆网,是住统一的理论和方法基础上逐步发展起来的,有计划的、以各类型各部门图书馆相互协作为目的的、通向形成完整的图书馆系统的过程。开始出现只是某些这种或那种形式的组合体,以便于馆际间的交流、联系,以及某些相互... 详细信息

建立统一的图书馆网,是住统一的理论和方法基础上逐步发展起来的,有计划的、以各类型各部门图书馆相互协作为目的的、通向形成完整的图书馆系统的过程。开始出现只是某些这种或那种形式的组合体,以便于馆际间的交流、联系,以及某些相互协作形式和管理机制,而后逐步达到列宁所说的组成真正统一的图书馆网的局面。

关键词：图书馆网三个时期相互协作专业图书馆图书馆资源苏联苏维埃社会主义共和国联盟

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current management of talar osteochondral lesions

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World Journal of Orthopedics 2017年第1期8卷 12-20页

作者： Arianna L gianakos Youichi Yasui charles P hannon John g Kennedy Department of Orthopedic Surgery 2~(nd) Jersey City Medical Center Department of Foot and Ankle Hospital for Special Surgery Department of Orthopaedic Surgery 2~(nd) Teikyo University School of Medicine 2~(nd) Department of Orthopaedic Surgery Rush University Medical Center (C.P.H.)

Osteochondral lesions of the talus(OLT) occur in up to 70% of acute ankle sprains and fractures. OLT have become increasingly recognized with the advancements in cartilage-sensitive diagnostic imaging modalities. Although OLT may be treated nonoperatively, a number of surgical techniques have been described for patients whom surgery is indicated. Traditionally, treatment of symptomatic OLT have included either reparative procedures, such as bone marrow stimulation(BMS), or replacement procedures, such as autologous osteochondral transplantation(AOT). Reparative procedures are generally indicated for OLT cement strategies are used for large lesions or after failed primary repair procedures. Although shortand medium-term results have been reported, longterm studies on OLT treatment strategies are lacking. Biological augmentation including platelet-rich plasma and concentrated bone marrow aspirate is becoming increasingly popular for the treatment of OLT to enhance the biological environment during healing. In this review, we describe the most up-to-date clinical evidence of surgical outcomes, as well as both the mechanical and biological concerns associated with BMS and AOT. In addition, we will review the recent evidence for biological adjunct therapies that aim to improve outcomes and longevity of both BMS and AOT procedures.

关键词： Osteochondral lesions of talus comprehensive review Diagnosis Bone marrow stimulation Autologous autograft transfer Biologics

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