检索结果-南通市图书馆

Shape estimation for a TPU-based multi-material 3D printed soft pneumatic actuator using deep learning models

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Technological Sciences) 2024年第5期67卷 1470-1481页

作者： HU Yu TANG Wei QU Yang XU HuXiu KRAMARENKO Yu.Elena ZOU Jun State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang UniversityHangzhou310058China school of Mechanical Engineering Zhejiang UniversityHangzhou310027China Institute of Process Equipment College of Energy EngineeringZhejiang UniversityHangzhou310027China Faculty of Physics Lomonosov Moscow State UniversityMoscow119991Russia Enikolopov Institute of Synthetic Polymeric Materials of Russian Academy of Sciences Moscow117393Russia

Real-time proprioception presents a significant challenge for soft robots due to their infinite degrees of freedom and intrinsic *** studies mostly focused on specific sensors and *** is still a lack of generalizable technologies for integrating soft sensing elements into soft actuators and mapping sensor signals to proprioception *** tackle this problem,we employed multi-material 3D printing technology to fabricate sensorized soft-bending actuators(SBAs)using plain and conductive thermoplastic polyurethane(TPU)*** designed various geometric shapes for the sensors and investigated their strain-resistive performance during *** address the nonlinear time-variant behavior of the sensors during dynamic modeling,we adopted a data-driven approach using different deep neural networks to learn the relationship between sensor signals and system states.A series of experiments in various actuation scenarios were conducted,and the results demonstrated the effectiveness of this *** sensing and shape prediction steps can run in real-time at a frequency of50 Hz on a consumer-level ***,a method is proposed to enhance the robustness of the learning models using data augmentation to handle unexpected sensor *** the methods are efficient,not only for in-plane 2D shape estimation but also for out-of-plane 3D shape *** aim of this study is to introduce a methodology for the proprioception of soft pneumatic actuators,including manufacturing and sensing modeling,that can be generalized to other soft robots.

关键词： shape estimation soft sensors and actuators 3D printing deep learning in robotics

Pancreatic giant malignancy simulating a gastrointestinal stromal tumor

在线全文

学校读者我要写书评

暂无评论

Hepatobiliary & Pancreatic Diseases international 2024年第4期23卷 431-433页

作者： Ben-Jie Liu Chen-Hui Jin Yan-Lun Guo Zhi-Gang Ke Jun-Jun Huang Lin-Ping Cao Department of Hepatobiliary Surgery Department of General SurgeryPujiang Branch of the First Affiliated HospitalZhejiang University School of MedicineJinhua 322200China Department of Pathology Pujiang Branch of the First Affiliated HospitalZhejiang University School of MedicineJinhua 322200China Department of Hepatobiliary and Pancreatic Surgery the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China

Pancreatic acinar cell carcinoma(PACC)is a rare malignant tumor of pancreatic epithelial cells,which produces pancreatic exocrine *** originates from acinar cells and terminal branches of the pancreatic ducts in the exocrine tissue of the *** accounts for 1%−2%of pancreatic exocrine tumors[1].Herein,we present an elderly woman with PACC who recovered after effective laparoscopic *** tumor was located on the left side of the abdomen;imaging suggested that it was a gastrointestinal stromal tumor of the gastric wall origin,infiltrating the tail of the pancreas and omentum,while postoperative pathology suggested PACC.

关键词： Pancreatic gastrointestinal pancreas

Generalized Cline's Formula and Jacobson's Lemma in a Ring

在线全文

学校读者我要写书评

暂无评论

Algebra Colloquium 2024年第3期31卷 407-416页

作者： Huanyin Chen Marjan Sheibani school of Big Data Fuzhou University of International Studies and Trade Fuzhou 350202China Farzanegan Campus Semnan UniversitySemnanIran

present a new generalized version of Cline's formula and Jacobson's lemma for g-Drazin inverses in a *** generalized results extend many known results,e.g.,Chen and Abdolyousefi[Generalized Jacobson's lemma in a Banach algebra,*** 49(2021)3263-3272],and Yan and Zeng[The generalized inverses of the products of two elements in a ring,Turkish ***.44(2020)1744-1756].

关键词： Cline's formula Jacobson's lemma generalized Drazin inverse Drazin inverse ring

The Translation of Allusions in Political Discourse:An Intertextuality Perspective

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Literature and Art Studies 2024年第5期14卷 343-348页

作者： LI Hai-long school of Applied Foreign Languages Zhejiang International Studies UniversityHanghzouZhejiang310023P.R.China

drawn from ancient classics are the treasures of traditional Chinese *** allusions used in Xi Jinping:The Governance of China illustrate a distinctive feature of political discourse,and the publication of its English version provides a valuable opportunity for the study of allusions in translated political *** the English translations of 241 allusions collected from two volumes of the book,we classified these allusions into three categories of history,culture,and literature based on their original *** we analyzed the strategies used in translating the allusions,and provided typical examples to illustrate the use of such translation strategies for each ***,we tried to account for the use of these strategies in light of the intertextuality theory.

关键词： allusion political discourse intertextuality translation strategies

Environmental, social, and governance performance and corporate innovation novelty

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

international Journal of Innovation Studies 2024年第2期8卷 109-131页

作者： Wanyi Chen Yuchuan Xie Kang He SILC business school Shanghai UniversityShanghai200444China school of Economics Huazhong University of Science and TechnologyWuhan430074China school of business Shantou UniversityShantou515063China

Environmental,social,and governance(ESG)performance,along with the novelty of innovation,are significant factors in promoting sustainable development for *** study employs the Heckman two-stage model to examine the impact of ESG performance on innovation novelty using a dataset comprising A-share listed companies in the Shanghai and Shenzhen Stock Ex-changes from 2011 to *** results indicate that enhanced ESG performance significantly fosters innovation by expanding innovation resources and mitigating agency *** analysis reveals that this relationship is more pronounced under high economic policy uncer-tainty,a challenging information environment,elevated financing constraints,and in the context of digital *** study not only expands the research on the economic implications of ESG performance for enterprise innovation behavior but also places a distinct emphasis on innovation quality rather than ***,this study enriches the existing literature on the factors influencing innovation novelty and extends research into the link between envi-ronmental protection and firm innovation,particularly from the perspective of stakeholder ***,this study holds practical significance for governments aiming to enhance ESG evaluation systems and establish guiding policies that encourage novel innovations,ultimately contributing to sustainable and high-quality ***,this study provides guidance to enterprises by encouraging them to embrace green development,improve social responsibility,and elevate their governance standards to promote innovation quality.

关键词： ESG Innovation novelty Resource dependence theory Agency problem Innovation quality Sustainable development

Achieving laparoscopic anatomic resection for hepatocellular carcinoma by fluorescence guided positive staining of hepatic cone unit

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hepatobiliary & Pancreatic Diseases international 2024年第4期23卷 406-411页

作者： Jun-Fang Deng Chuan-Hui Peng Yu Zhang Xiao-Feng Xu Rong-Liang Tong Zheng-Long Zhai Di-Yu Chen Cheng Zhang Li-Ming Wu Jian Wu Division of Hepatobiliary Pancreatic Surgery the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China

Laparoscopic anatomical liver resection has been increasingly reported worldwide,but how to demarcate the resection planes is technically challenging[1].Positive staining technique with intraoperative indocyanine green(ICG)-fluorescence imaging has been introduced as an effective tool for real-time intraoperative guidance[2].Liver anatomy is ***,liver is composed of 9 segments,each is composed of two to three subsegments,and each subsegment contains several hepatic cone units.A hepatic cone unit is dominated by a tertiary or quaternary hepatic pedicles[3].

关键词： hepatic resection anatomy

Industrial Policy,Product Switching,and Export Performance

在线全文

学校读者我要写书评

暂无评论

China & World Economy 2024年第1期32卷 167-196页

作者： Jiemiao Dong Zhuangxiong Yu Xunpeng Shi Yang Yang school of Economics and Trade Guangdong University of Foreign StudiesChina Institute of Industrial Economics Jinan UniversityChina Australia-China Relations Institute University of Technology SydneyAustrialia international school of business&Finance Sun Yat-sen UniversityChina

Industrial policy can promote economic growth and industrial upgrading by encouraging enterprises to adopt product *** utilizing comprehensive industrial policies and customs trade databases from 2000 to 2015,this paper found that firms with product ranges within policy-supported areas were more active in product *** all the enterprises that adopted the product switching,those with nonmain products in policy-supported areas were more inclined to adjust their main *** tended to transform nonmain product to main product as opposed to introducing new main product in order to effectively leverage their export experience and established ***,for enterprises whose main product was within the policy-supported areas,their tendency to switch products significantly *** analysis suggested that policy support,by alleviating industry distress and mitigating excessive market competition,encouraged firms to switch products to areas with policy ***,we estimated trade performance after product switching from the perspective of product unit price and export product *** found that for firms whose main product was in policy-supported areas,such switching was more likely to result in“low price,high quality”exports,whereas for firms with nonmain products in supported areas,such switching was more likely to lead to“high price,low quality”exports,which indicates that firms switching to policy-supported areas need to continuously develop their core competencies and operate effectively to improve their production performance.

关键词： export performance high-quality development industrial policy product switching

Exploring the Roles of Single Atom in Hydrogen Peroxide Photosynthesis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2024年第2期16卷 32-67页

作者： Kelin He Zimo Huang Chao Chen Chuntian Qiu Yu Lin Zhong Qitao Zhang international Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518000China Queensland Micro‑and Nanotechnology Centre School of Environment and ScienceGriffith UniversityNathanQLD 4222Australia Institute for Sustainable Transformation School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 51006China ZJU‑Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311215China

This comprehensive review provides a deep exploration of the unique roles of single atom catalysts(SACs)in photocatalytic hydrogen peroxide(H_(2)O_(2))*** offer multiple benefits over traditional catalysts such as improved efficiency,selectivity,and flexibility due to their distinct electronic structure and unique *** review discusses the critical elements in the design of SACs,including the choice of metal atom,host material,and coordination environment,and how these elements impact the catalytic *** role of single atoms in photocatalytic H_(2)O_(2)production is also analysed,focusing on enhancing light absorption and charge generation,improving the migration and separation of charge carriers,and lowering the energy barrier of adsorption and activation of *** these advantages,several challenges,including H_(2)O_(2)decomposition,stability of SACs,unclear mechanism,and low selectivity,need to be *** towards the future,the review suggests promising research directions such as direct utilization of H_(2)O_(2),high-throughput synthesis and screening,the creation of dual active sites,and employing density functional theory for investigating the mechanisms of SACs in H_(2)O_(2)*** review provides valuable insights into the potential of single atom catalysts for advancing the field of photocatalytic H_(2)O_(2)production.

关键词： Single atom catalysts H_(2)O_(2)photosynthesis Catalyst design and optimization

Advanced cellulose-based materials toward stabilizing zinc anodes

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2024年第5期67卷 1465-1484页

作者： Zhijiang Li Xiang Chen Rui Zhang Taoyi Shen Jianchao Sun Zhongce Hu Lin Li Lanlan Yang Hou-Yong Yu College of Textile Science and Engineering(international Institute of Silk) Zhejiang Sci-Tech UniversityHangzhou 310018China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Donghua UniversityShanghai 201620China school of Environment and Material Engineering Yantai UniversityYantai 264005China Institute for Carbon Neutralization College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China

Rechargeable aqueous zinc metal batteries(RAZMBs) have received extensive attention for large-scale energy storage systems due to the merits of Zn anodes, including moderate volumetric and gravimetric energy density, low redox potential, abundant reserve, low cost and impressive intrinsic safety. However, Zn anodes suffer from a series of adverse reactions(dendrite growth,hydrogen evolution, and surface passivation) resulting in low Coulombic efficiency, large polarization, and unsatisfied cycling performance, which inevitably hinder the wide application of RAZMBs. To address the above issues, cellulose-based materials are widely used for Zn anode protection because of their unique physical and chemical properties and other advantages such as biocompatibility, non-toxicity, degradability and easy extraction. In order to better understand the current progress in cellulosebased materials for the Zn anode protection, we have classified and summarized the relevant literatures. In this review, we summarize and elaborate the causes of poor reversibility for Zn anodes, including dendrite formation, hydrogen evolution, and surface passivation. Subsequently, the effective strategies(anode interfacial engineering, gel electrolyte optimization, and separator modification) of cellulose-based materials toward stabilizing Zn anodes are overviewed. In the end, the existing challenges and prospects of cellulose-based materials in Zn anode protection are summarized to shed light on future work.

关键词： Zn anode cellulose anode interfacial engineering gel electrolyte optimization separator modification