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Synthesis, crystal Structure and Magnetic Property of Disodium Biscarbonato cobaltate(Ⅱ) Tetrahydrate, Na_2co(cO_3)_2·4H_2O

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chemical Research in chinese Universities 1999年第4期15卷 311-316页

作者： ZHENG Yue-Qing YE Yu-Han HU Fu-Tao peters Karl and von ScHNERING Hans Georg chemistry Department Ningbo UniversityNingbo 315211P.R.China Max Planck Institut für Festkrperforschung D 70569 StuttgartGermany

The title compound, Na 2co(cO 3) 2·4H 2O, was synthesized by dropwise addition of 1.0 mL of 1 mol/L co(cH 3cOO) 2 to 50 mL of aqueous solution containing 7.0 g(66.0 mmol) of Na 2cO 3 and 2.5 g(29.8 mmol) of NaHcO 3 under stirring. A rose colored rhombohedral crystal grew by the slow evaporation of the solution of the title compoud at room temperature. The crystal structure was established on the basis of the single crystal X ray diffraction data. Na 2co(cO 3) 2·4H 2O crystallizes in the monoclinic space group c2/c with a =0.856 6(1) nm, b =0.714 6(1) nm, c = 1 438 7(2) nm, β =97.59(1)° , V =0.873 0(2) nm 3 , D x=2.260 g/cm 3, F (000)=596, M r=296 99, μ (Mo K α)=21.06 cm -1 , Z =4 and the final R(F) =0.032 and wR(F 2) =0.068 on the basis of 947 reflections ( F 2 ≥ 2σ(F 0 2)). The crystal consists of H 2O molecules, Na + ions and 2D 2 ∞[co(cO 3) 2] 2- layers extending parallel to (001). H 2O molecules and Na + cations are located between the 2D layers. Each co atom is tetrahedrally coordinated by four O atoms from four cO 2- 3 groups with d (co\_O)=0.206 5(2) nm, 0.207 6(2) nm and the angle of O\_co\_O is in the range of 97.7(1)°—128.5(1)°. The cO 2- 3 group bridging two co atoms via two O atoms deviates from D 3h symmetry with d (c\_O)=0.127 2(3)\_0.129 9(3) nm and the angle of O\_c\_O is in the range of 119.5(2)°\_123.4(2)°. Each Na atom, with two close Na neighbours at 0.338 4(2) nm and 0 346 7(2) nm, respectively, is octahedrally coordinated by six O atoms from four H 2O molecules and two carbonate groups belonging to two layers with d (Na\_O)=0.232 7(2)\_0.241 1(2) nm. Of two crystallographically different H 2O molecules, one forms hydrogen bonds to two cO 3 2- groups of one 2D layer, and the other to those from two different 2D layers. Na 2co(cO 3) 2·4H 2O is antiferromagnetic below 16 K, and between 30\_300

关键词： Synthesis Disodium biscarbonatocobaltate(Ⅱ) tetrahydrate crystal structure complex carbonate Magnetic property

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Investigating lodging in spearmint with overhead sprinklers compared to drag hoses using entropy values from low altitude RGB-imagery

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Information Processing in Agriculture 2022年第2期9卷 335-341页

作者： Behnaz Molaei Abhilash chandel R.Troy peters Lav R.Khot Juan Quiros Vargas center for Precision and Automated Agricultural Systems Department of Biological Systems EngineeringWashington State University24106 North Bunn RoadProsserWA 99350USA Institute of Bio-and Geosciences Plant Sciences(IBG-2)Forschungszentrum Julich GmbH52428 JulichGermany

Lodging occurs when the crop canopy is too heavy for the strength of the stem and it fallsover onto the ground. This decreases crop yield and quality, and it makes harvest difficult.A research experiment was set up in a spearmint field on a center pivot with mid elevationspray application (MESA) overhead sprinklers, where the water was applied from a “midelevation” of 2 m above the ground level (AGL), and low elevation precision application(LEPA) sprinklers, where the water was emitted directly onto the soil surface through draghoses without wetting the crop canopy. Every-other span of this full-size center pivot wasconfigured with MESA and LEPA sprinklers alternatively. In 2018, imagery was collectedwith an unmanned aerial vehicle (UAV) from a cross section of this field. In 2019, a crosssection was again collected, but in addition UAV imagery was collected from marked lodgedand un-lodged areas of the field to validate the lodging detection method. These UAV-basedimagery data were captured with a ground sample distance (GSD) of 0.03 m. This researchintroduces using the texture feature, which is based on image entropy, was used to evaluate the degree of lodging. The results from 2018 showed that the average entropy of thegrayscale image from LEPA (5.5 (mean) ± 0.27 (standard deviation)) was significantly(P cted from the images in 2019 from the marked un-lodged locations were significantlyhigher compared to that of the lodged areas. Overall, the LEPA irrigation treatment was significantly less lodged compared to MESA. Moreover, the entropy value, or texture feature, isa viable method for estimating lodging using low altitude RGB imagery.

关键词： Lodging Spearmint Entropy value Texture feature LEPA and MESA irrigation systems

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Efficacy of thioguanine treatment in inflammatory bowel disease: A systematic review

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World Journal of Gastroenterology 2016年第40期22卷 9012-9021页

作者： Berrie Meijer chris JJ Mulder Godefridus J peters Adriaan A van Bodegraven Nanne KH de Boer Department of Gastroenterology and Hepatology VU University Medical Center Department of Medical Oncology VU University Medical Center Department of Gastroenterology Geriatrics Internal and Intensive Care Medicine (Co-MIK) Zuyderland Medical Center

AIM To critically assess the available literature regarding the efficacy of thioguanine treatment in inflammatory bowel disease(IBD) patients, irrespective of the(hepato-) toxicity *** A systematic literature search of the MEDLINE database using Pub Med was performed using the keywords "thioguanine", "6-TG", "thioguanine", "inflammatory bowel disease", "IBD", "crohn's disease", "Ulcerative colitis" and "effectiveness" in order to identify relevant articles published in English starting from 2000. Reference lists of the included articles were crosschecked for missing articles. Reviewed manuscripts concerning the effectiveness of thioguanine treatment in IBD were reviewed by the authors and the data were extracted. Data were subsequently analyzed with descriptive statistics. Due to the lack of standardized outcomes, a formal meta-analysis was not *** A total of 11 applicable studies were found that involved the effectiveness of thioguanine therapy in IBD. Eight studies were conducted in a prospectivemanner, in the remaining three studies, data was collected retrospectively. In total, 353 IBD-patients(225 patients with crohn's disease, 119 with ulcerative colitis and nine with unclassified IBD) with prior azathioprine/mercaptopurine resistance and/or intolerance(n = 321) or de novo thioguanine administration(n = 32) were included for analysis, of which 228(65%) had clinical improvement on thioguanine therapy, based on standard IBD questionnaires, biochemical parameters or global physician assessments. Short-term results were based on 268 treatment years(median follow-up 9 mo, range 3-22 mo) with a median daily dose of 20 mg(range 10-80 mg). Discontinuation, mostly due to adverse events, was reported in 72 patients(20%). cONcLUSION The efficacy of thioguanine therapy in IBD patients intolerant to conventional thiopurine therapy is observed in 65%, with short term adverse events in 20% of patients.

关键词： Thiopurines Thioguanine Inflammatory bowel disease crohn’s disease Ulcerative colitis

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Washing out heavy metals from contaminated soils from an iron and steel smelting site

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Frontiers of Environmental Science & Engineering 2015年第4期9卷 634-641页

作者： Guangxu ZHU Qingjun GUO Junxing YANG Hanzhi ZHANG Rongfei WEI chunyu WANG Marc peters Xiaoyong ZHOU Jun YANG center for Environmental Remediation Institute of Geographical Sciences and Natural Resources Chinese Academy of Sciences Beijing 100101 China University of chinese Academy of Sciences Beijing 100049 China

Washing is a promising method for separating contaminants bound to the particles of soil ex-situ by chemical mobilization. Laboratory batch washing experi- ments were conducted using deionized water and varying concentrations of oxalic acid, citric acid, tartaric acid, acetic acid, hydrochloric acid and ethylenediaminetetra acetic acid （EDTA） to assess the efficiency of using these chemicals as washing agents and to clean up heavy metals from two heavily polluted soils from an iron and streel smelting site. The toxicity reduction index and remediation costs were analyzed, and the results showed that the soils were polluted with cd, Pb and Zn. Hydrochloric acid and EDTA were more efficient than the other washing agents in the remediation of the test soils. The maximum total toxicity reduction index showed that 0.5 mol·L^-1 hydro- chloric acid could achieve the remediation with the lowest costs.

关键词： heavy metals soil washing toxicity reduction index iron and steel smelting site

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characteristics of chinese Overseas Foreign Direct Investment in Latin America(2000-2012)

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contemporary International Relations 2013年第5期23卷 105-129,5页

作者： Enrique Dussel peters the Graduate School of Economics National Autonomous University of Mexico (UNAM) coordinator of the center for chinese-Mexican Studies at the School of Economics at UNAM

This paper is based on two important facts concerning chinese overseas foreign direct investment （OFDI）. First off, there is a strong coherence amongst chinese public sector policies, including those aimed toward t... 详细信息

关键词：外国直接投资拉丁美洲中国海外特性对外直接投资公共部门 FDI

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面向城市场景异源多时相点云的自动配准

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中国激光 2023年第10期50卷 203-213页

作者：杨泽鑫叶勤王旭飞 Ravi peters 同济大学测绘与地理信息学院上海200092 代尔夫特理工大学三维地理信息研究组荷兰代尔夫特2628 BL 同济大学上海自主智能无人系统科学中心上海200092

异源多时相点云数据是建设数字城市和智慧社会的关键空间数据支撑,其准确配准是开展各类后续应用的前提。针对异源多时相点云配准任务中数据规模大、结构差异大、场景变化大的难点,本文提出了一种自动的无控配准方法。首先将城市场景的... 详细信息

异源多时相点云数据是建设数字城市和智慧社会的关键空间数据支撑,其准确配准是开展各类后续应用的前提。针对异源多时相点云配准任务中数据规模大、结构差异大、场景变化大的难点,本文提出了一种自动的无控配准方法。首先将城市场景的整体点云数据过分割为平面区块,交汇相邻的平面生成稳定而特异的对象级虚拟关键点;然后将关键点间的刚体几何空间关系编码为图结构间的距离约束,匹配获取待配点云与目标点云间的同名点对;最后利用同名点对求取刚体转换参数,并应用转换参数将待配点云转换至目标点云的坐标系中。选择荷兰鹿特丹市某一典型城市场景地块的异源多时相点云数据验证了所提方法的有效性。实验结果表明,本文方法能够自动、准确、高效地实现城市场景异源多时相点云的无控配准,具有较高的工程应用价值。

关键词：遥感点云配准刚体运动学异源多时相点云激光雷达摄影测量点云

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直喷式柴油发动机缸内三维温度场的计算与试验

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机械工程学报 2007年第2期43卷 196-201页

作者：刘永峰张幽彤秦建军 peters Nobert 北京理工大学机械与车辆工程学院北京交通大学机械与电子控制工程学院北京100044 亚琛工业大学工程机械所

为计算直喷式柴油发动机缸内燃烧温度,提出利用理想混合比质量分数空间来计算缸内温度场。通过引入混合比质量分数基本概念,推导出各种组分与混合比质量分数的关系。通过引入小火焰的假设,分析典型非预混合小火焰结构,推导出绝热状况下... 详细信息

为计算直喷式柴油发动机缸内燃烧温度,提出利用理想混合比质量分数空间来计算缸内温度场。通过引入混合比质量分数基本概念,推导出各种组分与混合比质量分数的关系。通过引入小火焰的假设,分析典型非预混合小火焰结构,推导出绝热状况下缸内温度与混合比质量分数的关系。在理想混合比质量分数空间坐标系下建立新的温度输运方程,提供一种将湍流化学反应场和湍流运动场分离开的方法。经过一系列参数的输入,计算出缸内温度与扩散尺度速率关系,缸内温度与混合比质量分数关系以及缸内火焰温度分布,试验验证了计算结果。为计算直喷式柴油发动机缸内燃烧温度以及污染物成分提供新的计算方法。

关键词：直喷式柴油发动机小火焰假设湍流燃烧混合比质量分数

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Role of E3 ubiquitin ligases in lung cancer

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World Journal of clinical Oncology 2013年第3期4卷 58-69页

作者： Barbara c Snoek Leonie HAM de Wilt Gerrit Jansen Godefridus J peters Department of Medical Oncology VU University Medical Center1081 HV AmsterdamThe Netherlands Department of Rheumatology VU University Medical Center1081 HV AmsterdamThe Netherlands

E3 ubiquitin ligases are a large family of proteins that catalyze the ubiquitination of many protein substrates for targeted degradation by the 26S ***,E3 ubiquitin ligases play an essential role in a variety of biological processes including cell cycle regulation,proliferation and apoptosis.E3 ubiquitin ligases are often found overexpressed in human cancers,including lung cancer,and their deregulation has been shown to contribute to cancer ***,the lack of specific inhibitors in clinical trials is a major issue in targeting E3 ubiquitin ligases with currently only one E3 ubiquitin ligase inhibitor being tested in the clinical *** this review,we focus on E3 ubiquitin ligases that have been found deregulated in lung ***,we discuss the processes in which they are involved and evaluate them as potential anti-cancer *** better understanding the mechanisms by which E3 ubiquitin ligases regulate biological processes and their exact role in carcinogenesis,we can improve the development of specific E3 ubiquitin ligase inhibitors and pave the way for novel treatment strategies for cancer patients.

关键词： E3 ubiquitin ligases Lung cancer Ubiquitinproteasome system Proteasome inhibitors Bortezomib Apoptosis Gene regulation DNA repair

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Dynamic graph exploration by interactively linked node-link diagrams and matrix visualizations

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Visual computing for Industry,Biomedicine,and Art 2021年第1期4卷 219-232页

作者： Michael Burch Kiet Bennema ten Brinke Adrien castella Ghassen Karray Sebastiaan peters Vasil Shteriyanov Rinse Vlasvinkel Eindhoven University of Technology 5600MB EindhovenThe Netherlands

The visualization of dynamic graphs is a challenging task owing to the various properties of the underlying relational data and the additional time-varying *** sparse and small graphs,the most efficient approach to such visualization is node-link diagrams,whereas for dense graphs with attached data,adjacency matrices might be the better *** graphs can contain both properties,being globally sparse and locally dense,a combination of several visual metaphors as well as static and dynamic visualizations is *** this paper,a visually and algorithmically scalable approach that provides views and perspectives on graphs as interactively linked node-link and adjacency matrix visualizations is *** the novelty of this technique,insights such as clusters or anomalies from one or several combined views can be used to influence the layout or reordering of the other ***,the importance of nodes and node groups can be detected,computed,and visualized by considering several layout and reordering properties in combination as well as different edge properties for the same set of *** an additional feature set,an automatic identification of groups,clusters,and outliers is provided over time,and based on the visual outcome of the node-link and matrix visualizations,the repertoire of the supported layout and matrix reordering techniques is extended,and more interaction techniques are provided when considering the dynamics of the graph ***,a small user experiment was conducted to investigate the usability of the proposed *** usefulness of the proposed tool is illustrated by applying it to a graph dataset,such as e co-authorships,co-citations,and a comprehensible Perl Archive Network distribution.

关键词： Dynamic graph visualization Node-link diagrams Adjacency matrices Layouts Reorderings

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Hepatocellular Ballooning is Due to Highly Pronounced Glycogenosis Potentially Associated with Steatosis and Metabolic Reprogramming

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Journal of clinical and Translational Hepatology 2024年第1期12卷 52-61页

作者： Silvia Ribback Kristin peters Mohd Yasser Jessica Prey Paula Wilhelmi Qin Su Frank Dombrowski Peter Bannasch Institut für Pathologie Universitaetsmedizin GreifswaldGreifswaldGermany cell Marque Millipore-SigmaRocklinCAUSA German cancer Research center(DKFZ) HeidelbergGermany

Background and Aims:Hepatocellular ballooning is a common finding in chronic liver disease,mainly characterized by rarefied cytoplasm that often contains Mallory-Denk bodies(MDB).Ballooning has mostly been attributed to degeneration but its striking resemblance to glycogenotic/steatotic changes characterizing preneoplastic hepatocellular lesions in animal models and chronic human liver diseases prompts the question whether ballooned hepatocytes(BH)are damaged cells on the path to death or rather viable cells,possibly involved in neoplastic ***:Using specimens from 96 cirrhotic human livers,BH characteristics were assessed for their glycogen/lipid stores,enzyme activities,and proto-oncogenic signaling cascades by enzyme-and immunohistochemical approaches with serial paraffin and cryostat ***:BH were present in 43.8%of cirrhotic *** pronounced excess glycogen storage of(glycogenosis)and/or lipids(steatosis)were characteristic,ground glass features and MDB were often *** glucose-6-phosphatase,increased glucose-6-phosphate dehydrogenase activity and altered immunoreactivity of enzymes involved in glycolysis,lipid metabolism,and cholesterol biosynthesis were ***,components of the insulin signaling cascade were upregulated along with insulin dependent glucose transporter glucose transporter 4 and the v-akt murine thymoma viral oncogene homolog/mammalian target of rapamycin signaling pathway associated with de novo ***:BH are hallmarked by particularly pronounced glycogenosis with facultative steatosis,many of their features being reminiscent of metabolic aberrations documented in preneoplastic hepatocellular lesions in experimental animals and chronic human liver ***,BH are not damaged entities facing death but rather viable cells featuring metabolic reprogramming,indicative of a preneoplastic nature.

关键词： chronic liver disease carbohydrate metabolism Insulin signaling Preneoplasia Metabolic reprogramming

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