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Estimate Dynamic Lever-arm Caused by Ship Flexure Deformation Based on Acceleration Matching

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Estimate Dynamic Lever-arm Caused by Ship Flexure Deformatio...

Transient chemical-mediated epigenetic modulation confers unrestricted lineage potential on human primed pluripotent stem cells

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作者： LIU cheng,deng zhi-Hong,GAO Wen-Shao,FU Meng-Yin School of Automation,Beijing Institute of Technology,Beijing 100081,P.R.China

＜正＞The misalignment angle and the lever-arm are affected by the flexural deformation of ship deck,which degrades the transfer alignment *** is necessary to model and estimate the flexural deformation angle of ship deck,caused by the dynamic *** compensating the error to improve the alignment accuracy is extremely vital *** this paper, firstly the model between distortion angle and dynamic lever-arm is built and the dynamic lever-arm listed in the state vector is *** "acceleration" matching measurement equation is established and Kalman filtering is adopted to estimate dynamic lever-arm,mounted misalignment angle and distortion *** simulation results show that,using the proposed model can estimate dynamic lever-arm,mounted misalignment angle and distortion angle within 10s,which meet the requirements of the alignment precision and time.

关键词： Dynamic Lever-arm Flexural Deformation Acceleration Matching Transfer Alignment

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Science China Life Sciences 2025年

作者： Shi Chen Yuanyuan He Lejun Lv Bei Liu cheng Li Hongkui deng Jun Xu Department of Cell Biology School of Basic Medical Sciences Peking University Stem Cell Research Center Peking University Health Science Center Peking University Academy of Advanced Interdisciplinary Studies Peking University BeiCell Therapeutics School of Life Sciences Center for Bioinformatics Center for Statistical Science Peking University MOE Engineering Research Center of Regenerative Medicine School of Basic Medical Sciences State Key Laboratory of Natural and Biomimetic Drugs Peking University Health Science Center and the MOE Key Laboratory of Cell Proliferation and Differentiation College of Life Sciences Peking-Tsinghua Center for Life Sciences Peking University

Human primed pluripotent stem cells are capable of generating all the embryonic ***,their extraembryonic trophectoderm potentials are *** remains unclear how to expand their developmental potential to trophectoderm *** we show that transient treatment with a cocktail of small molecule epigenetic modulators imparts trophectoderm lineage potentials to human primed pluripotent stem cells while preserving their embryonic *** chemically treated cells can generate trophectoderm-like cells and downstream trophoblast stem cells,diverging into syncytiotrophoblast and extravillous trophoblast *** and CUT&Tag analyses reveal that these induced cells share transcriptional profiles with in vivo trophectoderm and cytotrophoblast,and exhibit reduced H3K27me3 modification at gene loci specific to trophoblast lineages compared with primed pluripotent *** exploration highlighted the critical roles of epigenetic modulators HDAC2,EZH1/2,and KDM5s in the activation of trophoblast lineage *** findings demonstrate that transient epigenetic resetting activates unrestricted lineage potential in human primed pluripotent stem cells,and offer new mechanistic insights into human trophoblast lineage specification and in vitro models for studying placental development and related disorders.

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动态纸页成形器模拟多层斜网成形器生产水溶性PVA纤维高强纸工艺探讨

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纸和造纸 2014年第9期33卷 27-31页

作者：王彪李群李菲薛涵程登智天津科技大学天津市制浆造纸重点实验室天津300457 陕西华特玻纤材料集团有限公司陕西兴平712000

采用动态纸页成形器（DSF）模拟实际生产中多层斜网成形器实现纸张的分层抄造,分析讨论水溶性PVA纤维在纸张结构中不同位置对成纸强度性能的影响;探讨纸张成形、干燥过程对PVA纤维结合状况、成纸纵横向强度等主要物理性能的影响;通过优... 详细信息

采用动态纸页成形器（DSF）模拟实际生产中多层斜网成形器实现纸张的分层抄造,分析讨论水溶性PVA纤维在纸张结构中不同位置对成纸强度性能的影响;探讨纸张成形、干燥过程对PVA纤维结合状况、成纸纵横向强度等主要物理性能的影响;通过优化DSF运行参数,在针叶木长纤维（NBSK）浆料中添加0.8%~1.0%的PVA 70纤维（即温度在70℃左右时就能完全溶解的PVA纤维）,压榨气控箱压力在0.2~0.3 MPa之间,干燥温度在95℃情况下,可获得最优增强作用。

关键词：聚乙烯醇纤维纸页成形斜网成形器纸张强度

Cerebral fat embolism following autologous fat injection in facial reconstruction:A case report

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World Journal of Clinical Cases 2025年第2期13卷 50-58页

作者： Xiu-Ying Chen Fa Shen Chang cheng Yu-Han Wang Wen-Chao cheng De-zhi Yuan Wen Huang Department of Neurology Chongqing Emergency Medical CenterChongqing University Central HospitalChongqing 400000China Department of Neurology Xinqiao HospitalThe Army Medical University(Third Military Medical University)Chongqing 400000China

BACKGROUND Autologous fat injection in facial reconstruction is a common cosmetic *** cerebral fat embolism(CFE)as a complication is rare,it carries serious health *** SUMMARY We present a case of a 29-year-old female patient who developed acute CFE following facial fat filling *** the surgery,the patient experienced symptoms including headache,nausea,vomiting,and difficulty breathing,which was followed by neurological symptoms such as slurred speech and left-sided *** physical examination and auxiliary investigations,including blood tests,head and neck computed tomography angiography,and cranial magnetic resonance diffusion-weighted imaging,were performed upon *** clinical diagnosis was acute cerebral embolism following facial fat filling *** included measures to improve cerebral circulation,dehydration for intracranial pressure reduction,nutritional support,and rehabilitation therapy for left limb *** patient showed a significant improvement in symptoms after 2 weeks of *** recovered left limb muscle strength to grade 5,had clear speech,and experienced complete relief of *** Our case highlights the potential occurrence of severe complications in patients undergoing fat injection in facial *** prevent these complications,plastic surgeons should enhance their professional knowledge and skills.

关键词： Cerebral fat embolism Mechanical thrombectomy Thrombolysis Steroid therapy Symptomatic treatment Case report

敌锈钠(对氨基苯磺酸钠)的研究——Ⅱ.^(35)S—对氨基苯磺酸钠透入花生的内吸活性及其在土壤中的移动

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华南农业大学学报 1981年第3期9卷 1-11页

作者：林孔勋郑仲邓志群华南农学院植保系华南农学院生物物理研究室

用对氨基苯磺酸钠(Ⅰ)和对氨基苯磺酸(Ⅱ)的内吸活性进行了研究,(Ⅰ)比(Ⅱ)易于从叶面透入花生植株内部,二者的内吸量分别为0.1352微克/毫克,叶干重和0.0772微克/毫克,叶干重。Ⅰ进入后在植株体内的分布是均匀的,在喷药后第8天测定的上... 详细信息

用对氨基苯磺酸钠(Ⅰ)和对氨基苯磺酸(Ⅱ)的内吸活性进行了研究,(Ⅰ)比(Ⅱ)易于从叶面透入花生植株内部,二者的内吸量分别为0.1352微克/毫克,叶干重和0.0772微克/毫克,叶干重。Ⅰ进入后在植株体内的分布是均匀的,在喷药后第8天测定的上部、中部和下部的药量分别为0.1043,0.1070和0.1024微克/毫克,叶干重。喷药后15天的分别为0.0972,0.0797和0.0765微克/毫克,叶干重。 Ⅰ的向顶性运转极为明显,向基性运转不明显,从植株地上部枝叶向根部运转的药量仅为施药量的0.25％,但短距离的移动还比较明显,更可以向横移动。因此对喷药均匀度的要求不高。花生种子用Ⅰ拌后当天播种与拌后贮存3天后才播种。在这两种处理中,药剂透入并运转到苗的地上部枝叶的量分别为2.4628～2.6200微克/株和1.8654～1.8664微克/株。因此,用于拌种时拌后不要贮存,以当天播种为宜。 Ⅰ容易被根部吸收并运转到地上部枝叶中。在Ⅰ中加入“吐温80”(Ⅲ)或胶体硫(Ⅳ)(含大量造纸废液),可提高其在土壤中深透移动,在20厘米土层中的滞留药量分别为Ⅰ:3.41％,Ⅲ:2.58％,Ⅳ:2.74％;在浇土防病中的防效分别为Ⅰ:59.45％,Ⅳ:92.52％。这就进一步说明,敌锈钠和胶体硫混合使用是很理想的。

关键词：对氨基苯磺酸钠花生锈病敌锈钠胶体硫内吸活性取代苯类杀菌剂无机杀菌剂花生植株花生透入

Primary parenchymal squamous cell carcinoma of the kidney:A case report

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World Journal of Clinical Cases 2025年第4期13卷 34-40页

作者： zhi-Hui Zheng Bo Shao Chao-Min Xu Ke Wang Jia-Zhu Wen Li-Kang Luo Jia-cheng Guan Department of Ultrasound The Second People’s Hospital of QuzhouQuzhou 324000Zhejiang ProvinceChina Department of Radiology Shulan(Quzhou)HospitalQuzhou 324000Zhejiang ProvinceChina Department of Radiology The Second People’s Hospital of QuzhouQuzhou 324000Zhejiang ProvinceChina Department of Pathology The Second people’s Hospital of QuzhouQuzhou 324000Zhejiang ProvinceChina

BACKGROUND Primary squamous cell carcinoma(SCC)of the renal parenchyma is extremely rare,with only nine cases *** SUMMARY This study reports a 51-year-old man with primary SCC of the renal *** patient was admitted with recurrent dull pain and discomfort in the right lumbar region,which had worsened over 2 weeks,accompanied by painful gross *** antigen(SCCA)levels were elevated,and imaging revealed a renal mass with associated *** patient underwent laparoscopic unilateral nephrectomy and lymph node *** pathology confirmed highly differentiated SCC with necrosis in the right renal parenchyma,with negative renal pelvis and *** pathological stage was *** months after surgery,the tumor recurred with involvement of the liver,right psoas major muscle,and inferior vena *** patient refused chemotherapy and succumbed to the disease 6 months postoperatively due to disease *** We report a case of primary SCC of the renal parenchyma,a rare renal *** clinical symptoms,laboratory tests,and imaging findings are nonspecific,making accurate and timely diagnosis *** to the literature,for patients with renal calculi accompanied by a renal mass,elevated serum SCCA levels,and magnetic resonance imaging showing cystic or cystic-solid masses within the kidney with pseudocapsules and heterogeneous mild enhancement,the possibility of this disease should be considered.

关键词： Renal tumor Renal parenchyma Squamous cell carcinoma Renal calculi Computed tomography Case report

Prospects on mangrove knowledge services in the smart era: From plant atlas to knowledge graphs

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Science China Earth Sciences 2025年第1期 111-127页

作者： zhi-Wei HOU Wenlong JING cheng-zhi QIN Ji YANG Qing XIA Xiaoling YIN Key Laboratory of Guangdong for Utilization of Remote Sensing and Geographical Information System Guangdong Open Laboratory of Geospatial Information Technology and Application Guangzhou Institute of Geography Guangdong Academy of Sciences Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of Sciences College of Resources and Environment University of Chinese Academy of Sciences School of Traffic & Transportation Engineering Changsha University of Science and Technology

Mangroves are crucial to the ecological security of the Earth and human well-being. Their management, conservation, and restoration are of great importance and necessitate the support of spatio-temporal information and multidisciplinary knowledge such as biology and ecology. Traditional knowledge services such as plant atlas provide illustrated textual knowledge of mangroves. However, this kind of service is oriented to information retrieval and is incapable of effectively mining and utilizing fragmented knowledge from multi-source heterogeneous data, facing the problem of “massive data, rare knowledge”. Knowledge graphs are capable of extracting, organizing, and fusing the knowledge contained in massive data into semantic networks that can be understood and computed by computers. They provide a solution for the realization of intelligent knowledge services. Focusing on the urgent need for mangrove knowledge acquisition, formal representation, and intelligent services, this paper proposes a research prospect on mangrove knowledge graphs and knowledge services. We first analyze the similarities and differences between various domain-specific concepts of Tupu. On this basis, we define the mangrove knowledge graph as a large-scale knowledge base that integrates multi-disciplinary knowledge and spatio-temporal information with mangrove ecosystems as the core. Then, we propose a research framework for mangrove knowledge services that can realize the transformation from multi-modal data to intelligent knowledge services, including multiple research levels such as ubiquitous data sensing and aggregation, knowledge organization and graph construction, and intelligent mangrove knowledge services. Subsequently, the methods and workflow for constructing mangrove knowledge graphs are introduced. Finally, we discuss the challenges and possible future directions of mangrove knowledge services in the smart era, including the construction of a mangrove knowledge system that integra

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Nondeterministic Fuzzy Simulation and Bisimulation

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Chinese Journal of Electronics 2020年第2期29卷 297-303页

作者： deng Hui LI zhi School of Electro-Mechanical Engineering Xidian University

As the abstraction and equivalent technologies, simulation and bisimulation have been applied to the simplifications of some classical and uncertain models structures. The studies of the more generalized simulation and bisimulation technologies have not proceeded *** this problem in mind, we introduce the concepts,lemmas, theorems of nondeterministic fuzzy simulation and bisimulation, as well as the relevant proofs. According to the definitions of nondeterministic fuzzy simulation and bisimulation, we propose nondeterministic fuzzy quotients and a series of quotienting algorithms to generate the minimization of nondeterministic fuzzy simulation and bisimulation. By comparison with previous quotienting algorithms, we show that our quotienting algorithms are more generalized. This kind of quotienting algorithms not only suit for Nondeterministic fuzzy Kripke structure(NFKS), but also Fuzzy Kripke structure(FKS)and classical Kripke structure.

关键词： Nondeterministic fuzzy kripke structure(NFKS) Nondeterministic fuzzy simulation Nondeterministic fuzzy bisimulation Nondeterministic fuzzy quotient

Molecular simulation study of the microstructures and properties of pyridinium ionic liquid[HPy][BF_(4)]mixed with acetonitrile

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原子与分子物理学报 2025年第4期42卷 27-32页

作者： XU Jian-Qiang MA Zhao-Peng cheng Si LIU zhi-Cong ZHU Guang-Lai Department of Physics School of Physics and Electronic InformationAnhui Normal UniversityWuhu 241002China

The microstructures and thermodynamic properties of mixed systems comprising pyridinium ionic liquid[HPy][BF_(4)]and acetonitrile at different mole fractions were studied using molecular dynamics simulation in this *** following properties were determined:density,self-diffusion coefficient,excess molar volume,and radial distribution *** results show that with an increase in the mole fraction of[HPy][BF_(4)],the self-diffusion coefficient ***,the excess molar volume initially decreases,reaches a minimum,and then *** rules of radial distribution functions(RDFs)of characteristic atoms are *** increasing the mole fraction of[HPy][BF_(4)],the first peak of the RDFs of HA1-F decreases,while that of CT6-CT6 rises at first and then *** indicates that the solvent molecules affect the polar and non-polar regions of[HPy][BF_(4)]differently.

关键词： Pyridinium ionic liquids Thermodynamic properties Molecular dynamics simulation Radial distribution functions