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| 1 | Investigation of effect of electrode polarity on electrochemistry and magnetohydrodynamics using tertiary current distribution in electroslag remelting process显示文摘Transport phenomena including the electromagnetic,concentration of ions,flow,and thermal fields in the electroslag remelting(ESR)process made of slag,electrode,air,mold,and melt pool are computed considering tertiary current distribution.Nernst-Planck equations are solved in the bulk of slag,and faradaic reactions are regarded at the metal-slag interface.Aiming at exploring electrochemical effects on the behavior of the ESR process,the calculated field structures are compared with those obtained using the classical ohmic approach,namely,primary current distribution whereby variations in concentrations of ions and faradaic reactions are ignored.Also,the influence of the earth magnetic field on magnetohydrodynamics in the melt pool and slag is considered.The impact of the polarity of electrode,whether positive,also known as direct current reverse polarity(DCRP),or negative,as known as direct current straight polarity(DCSP),on the transport of oxygen to the ingot of ESR is investigated.The obtained modeling results enabled us to explain the experimental observation of higher oxygen content in DCSP than that of DCRP operated ESR process. | E.Karimi-Sibaki A.Kharicha A.Vakhrushev M.Wu A.Ludwig J.Bohacek | 2021 | Journal of Iron and Steel Research(International)2021,28,12: | 2 |
| 2 | Quantitative detection of norovirus excretion in pediatric patients with cancer and prolonged gastroenteritis and shedding of norovirus显示文摘 | A.Ludwig O.Adams H.‐J.Laws H.Schroten T.Tenenbaum | 2008 | J. Med. Virol2008,,8: | 1 |
| 3 | 《社区再投资法》:过去的成功及未来的机遇(中)显示文摘三、《社区再投资法》的立法修正案自1977年《社区再投资法》得到通过以来,国会已经对其进行了若干次的修订。第一次的修订是作为《金融机构改革、复兴与实施法》(FIRREA)的一部分,要求监管当局将《社区再投资法》评价及评级信息向外界公开。 | Eugene A.Ludwig James Kamihachi Laura Toh 孙天琦 | 2011 | 西部金融2011,,11: | 1 |
| 4 | Neoadjuvant treatment of soft‐tissue sarcoma: A multimodality approach显示文摘 | DavidReynoso VivekSubbiah Jonathan C.Trent B. AshleighGuadagnolo Alexander J.Lazar RobertBenjamin Raphael E.Pollock Joseph A.Ludwig | 2010 | J Surg Oncol2010,,4: | 1 |
| 5 | 离子交换玻璃中的混合氧化物效应显示文摘混合碱效应很多年来已是相当广泛研究的领域。它指出这个效应也在网络修饰离子这一的是非碱元素的玻璃中存在。因此更确切地说这个效应应为混合氧化物效应。这个效应的存在实验上被熔融法生产的混合氧化物玻璃所证实。有很多试图描述这个效应的理论,例如,这些描述或是定性的或在很多情况下是定量的。直到现在,通过与实验比较。 | 贺海燕 G.Berg A.Ludwig | 1997 | 国外建材科技1997,18,1: | 0 |
| 6 | Understanding sarcoma drug resistance one cell at a time显示文摘As true for any cancer,intrinsic and acquired drug resistance represent perhaps the single biggest obstacle limiting our ability to cure patients with metastatic disease.Yet,tackling this challenge has been particularly difficult for sarcoma.First and foremost,sarcomas are rare and diverse,which splits a class of tumors representing less than 1 percent of all malignancies into more than fifty smaller molecularly and histologically distinct entities,each having its own etiology,prognosis,and clinical presentation.Even the most“common”sarcoma subtypes(e.g.,liposarcoma,leiomyosarcoma,or gastrointestinal stromal tumors)have annual incidences in the thousands in the United States,whereas rarer subtypes like desmoplastic small round cell tumors number less than fifty per year.Due to their scarcity,it’s not uncommon for just a few cell lines,organoids,or patient-derived tumor explants to exist for each sarcoma subtype.This shortage limits their usefulness to model the wide variety of innate and adaptive mechanisms that exist in human tumors.Many times,no representative preclinical model exists.The scarcity of FDA-approved drugs aimed at sarcoma-specific targets,often fusion proteins and transcription factors,is also problematic. | Salah-Eddine Cherradi-Lamhamedi Danh Truong Joseph A.Ludwig | 2022 | Cancer Drug Resistance2022,5,1: | 0 |
| 7 | Role of fragmentation in as-cast structure:numerical study and experimental validation显示文摘A volume average solidification model is extended to incorporate fragmentation as the source of equiaxed crystals during mixed columnar-equiaxed solidification. This study is to use this model to analyze the role of fragmentation in the formation of as-cast structure. Test simulations are made for the solidification of a model alloy(Sn-10wt.%Pb) with two different geometries. The first one is a 2D rectangular domain(50 × 60 mm^2) as cooled from the top boundary. Solidification starts unidirectionally as columnar structure from the top. The solute(Pb) enriched interdendritic melt is heavier than the bulk melt, and sinks downwards, hence leads to solutal convection. Fragmentation phenomenon occurs near the columnar tip front. The fragments are transported out of the columnar region, and they continue to grow and sink, and finally settle down and pile up at the bottom. The growing columnar structure from the top and pile-up of equiaxed crystals from the bottom finally lead to a mixed columnar-equiaxed structure, in turn leading to a columnar-to-equiaxed transition(CET). The second geometry is a 3D plate, 100 × 60 ×10 mm^3, as cooled laterally from one side. It was cast experimentally and analyzed for the as-cast structure. The equiaxed fragments are produced in the solidification front and transported into the bulk melt, leading to a special pattern of as-cast structure: columnar structure in the cool wall side and equiaxed structure in the upper left corner near the hot wall side, extending downwards to the middle bottom region. Numerically calculated as-cast structures agree with the experiment results. | Yong-jian Zheng Meng-huai Wu A.Kharicha A.Ludwig | 2017 | China Foundry2017,14,5: | 0 |
| 8 | 《社区再投资法》:过去的成功及未来的机遇(下)显示文摘一、《社区再投资法》与次贷危机针对《社区再投资法》的最新指控便是将其列为次贷危机的罪魁祸首。在最近的几个月里,一些评论家,例如经济学家LarryKudlow,华尔街日报的编委会成员StephenMoore都认为这次危机的爆发是推行《社区再投资法》的一个必然结果。 | Eugene A.Ludwig James Kamihachi Laura Toh 孙天琦 杨岚 张晓东 刘社芳 周彦君 孙炎炜 | 2011 | 西部金融2011,,12: | 0 |
| 9 | 《社区再投资法》:过去的成功及未来的机遇(上)显示文摘在三十多年前《社区再投资法》还没有通过时,很少有银行会在中低收入人群中开展一定规模的贷款业务。出于种族歧视及信用缺失的考虑,很多银行划定整片不发放贷款的区域。这样的规定使得很多城市的贫民区犹如荒废的孤岛般的存在着,居住在其中的居民们获取资本的途径非常有限。在这样的情况下,除政府直接投资外,很难再有其他的方法能够打破这个恶性循环。 | Eugene A.Ludwig James Kamihachi Laura Toh 孙天琦 | 2011 | 西部金融2011,,10: | 0 |
| 10 | Delineation of Integrated Anomaly with Generative Adversarial Networks and Deep Neural Networks in the Zhaojikou Pb-Zn Ore District,Southeast China显示文摘Geochemical maps are of great value in mineral exploration.Integrated geochemical anomaly maps provide comprehensive information about mapping assemblages of element concentrations to possible types of mineralization/ore,but vary depending on expert's knowledge and experience.This paper aims to test the capability of deep neural networks to delineate integrated anomaly based on a case study of the Zhaojikou Pb-Zn deposit,Southeast China.Three hundred fifty two samples were collected,and each sample consisted of 26 variables covering elemental composition,geological,and tectonic information.At first,generative adversarial networks were adopted for data augmentation.Then,DNN was trained on sets of synthetic and real data to identify an integrated anomaly.Finally,the results of DNN analyses were visualized in probability maps and compared with traditional anomaly maps to check its performance.Results showed that the average accuracy of the validation set was 94.76%.The probability maps showed that newly-identified integrated anomalous areas had a probability of above 75%in the northeast zones.It also showed that DNN models that used big data not only successfully recognized the anomalous areas identified on traditional geochemical element maps,but also discovered new anomalous areas,not picked up by the elemental anomaly maps previously. | DUAN Jilin LIU Yanpeng ZHU Lixin MA Shengming GONG Qiuli Alla DOLGOPOLOVA Simone A.LUDWIG | 2023 | Acta Geologica Sinica(English Edition)2023,97,4: | 0 |