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Coupling Effect of Cryogenic Freeze-Thaw Cycles and Chloride Ion Erosion Effect in Pre-Cracked Reinforced Concrete

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Structural Durability & Health Monitoring 2024年第3期18卷 255-276页

作者： Yang Li Sibo jiang ruixin Lan School of Civil Engineering and Architecture Hubei University of TechnologyWuhan430068China

Chloride (Cl−) ion erosion effects can seriously impact the safety and service life of marine liquefied natural gas(LNG) storage tanks and other polar offshore structures. This study investigates the impact of different low-temperaturecycles (20°C, –80°C, and −160°C) and concrete specimen crack widths (0, 0.3, and 0.6 mm) on the Cl−ion diffusion performance through rapid erosion tests conducted on pre-cracked concrete. The results show thatthe minimum temperature and crack width of freeze-thaw cycles enhance the erosive effect of chloride ions. TheCl− ion concentration and growth rate increased with the increasing crack width. Based on the experimental modeland in accordance with Fick’s second law of diffusion, the Cl− ion diffusion equation was modified by introducingcorrection factors in consideration of the freeze-thaw temperature, crack width, and their coupling *** experimental and fitting results obtained from this model can provide excellent reference for practical engineeringapplications.

关键词： Chloride ions freeze-thaw cycles cracks

Clinical utilization of olaparib,a PARP inhibitor,in BRCA1-mutant metastatic acral melanoma

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Genes & Diseases 2023年第5期10卷 1755-1758页

作者： ruixin jiang Xianbin Liang Ye Tao Ronghui Xia Ming Lei Bin jiang Robert LJudson-Torres Yanjie Zhang Weizhen Zhang Hanlin Zeng Department of Oncology Shanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghai 201900China Department of Oncology The Third People's Hospital of ZhengzhouZhengzhouHenan 450000China Shanghai Institute of Precision Medicine Shanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghai 200125China Department of Oral&Maxillofacial-Head and Neck Oncology Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghai 200125China Department of Dermatology University of UtahSalt Lake CityUT 84132USA Huntsman Cancer Institute Salt Lake CityUT 84112USA

Acral melanoma(AM)is a rare subtype of cutaneous melanoma linked to poor prognosis,largely due to a lacking of effective targeted therapeutic ***-genome sequencing(WGS)data revealed that AM showed a different mutation landscape from cutaneous melanoma.1 BRCA1 and BRCA2 mutations appear in about 3%–16%of AMs.2,3 Pharmacologic inhibition of the DNA repair enzyme PARP has been approved by the FDA as monotherapy in patients with deleterious germline BRCA1/2 mutated advanced ovarian cancer,and the usage has been expanded to metastatic breast cancer,pancreatic cancer,and prostate cancer with homologous recombination repair(HRR)gene defects.4 However,whether AM with BRCA mutations is also sensitive to PARP inhibition is *** identified a stageⅣAM patient with a germline BRCA1 frameshift mutation(BRAC1 G1384Nfs∗7)who was resistant to anti-PD1 *** patient-derived xenograft and cells(PDX/PDC)models from the same AM patient were *** inhibitor olaparib significantly decreased cell proliferation and slowed tumor growth by increasing DNA double-strand breakage in AM cancer *** of olaparib to the patient achieved stable disease for 3 *** study provides preclinical and clinical evidence that PARP inhibitors can slow tumor growth in BRCA1-mutant advanced acral melanoma.

关键词： melanoma BRCA1 PD1

Developmental Patterns and Gender Differences of Vocal Production in Marmoset Monkeys

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Neuroscience Bulletin 2024年第1期40卷 133-138页

作者： ruixin An Chaocheng Lu Chen Wang Liangtang Chang Junfeng Huang Fan jiang Tian-Le Xu Neng Gong Center for Brain Science Shanghai Children's Medical CenterShanghai Jiao Tong University School of MedicineShanghai 200127China Department of Anatomy and Physiology Shanghai Jiao Tong University School of MedicineShanghai 200025China Department of Critical Care Medicine Huashan HospitalFudan University12 Middle Wulumuqi RoadShanghai 200040China Institute of Neuroscience Key Laboratory of Primate NeurobiologyCAS Center for Excellence in Brain Science and Intelligence TechnologyChinese Academy of SciencesShanghai 200031China Lingang Laboratory Shanghai 200031China Shanghai Center for Brain Science and Brain-Inspired Technology Shanghai 201210China

Dear Editor,The common marmoset(Callithrix jacchus),a small New World monkey species,is considered an ideal non-human primate model for studying the evolution and neural mechanism of vocal behavior due to their rich call repertoire and vocal communication[1-3].Especially,the early vocal development of marmoset monkeys has attracted much attention,because newborn marmosets have been shown to exhibit a vocal development *** two months after birth,marmosets'vocalizations undergo dramatic changes from cries to adult-like mature calls,a process that is influenced not only by inner physical maturation but also by parental care and feedback[4].

关键词： parental birth Pattern

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学科建设与创新人才培养的协同互动

长春大学学报 2017年第4期27卷 51-55页

作者：姜睿馨长春工业大学人事处长春130012

学科建设是我国实现世界一流高水平大学建设的关键路径,创新人才培养是学科建设和人才战略的核心任务。相比之下,我国学科建设和创新人才培养还有很多需要进一步完善的地方。通过分析我国学科建设与创新人才培养的相关性,对学科建设和... 详细信息

学科建设是我国实现世界一流高水平大学建设的关键路径,创新人才培养是学科建设和人才战略的核心任务。相比之下,我国学科建设和创新人才培养还有很多需要进一步完善的地方。通过分析我国学科建设与创新人才培养的相关性,对学科建设和创新人才培养的困境进行深入挖掘,最终提出创新人才培养和学科建设的协同互动机制。

关键词：学科建设创新人才培养协同互动

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冗余测试系统的设计和应用

仪器仪表学报 2005年第Z2期26卷 608-609,615页

作者：姜瑞新蔡凌汪晋宽东北大学秦皇岛分校秦皇岛066004

阐述了对复杂系统实施冗余测试的必要性以及在系统可靠度和测试决策可靠性中必须解决的问题,并介绍了冗余测试系统的设计和应用情况。

关键词：冗余测试可靠性

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高校教师胜任力评价探究

长春工业大学学报（高教研究版） 2007年第4期28卷 31-33页

作者：姜睿馨长春工业大学人事处吉林长春130012

教师胜任力的研究对于推进教师工作的专业化和进一步推进素质教育有着重要意义。基于胜任力的高校教师评价,应借鉴工业组织管理的先进技术,采用职位分析、胜任特征模型、模拟测验和模糊综合评判等方法,以科学评价高校教师的知识、技能... 详细信息

教师胜任力的研究对于推进教师工作的专业化和进一步推进素质教育有着重要意义。基于胜任力的高校教师评价,应借鉴工业组织管理的先进技术,采用职位分析、胜任特征模型、模拟测验和模糊综合评判等方法,以科学评价高校教师的知识、技能、能力和特质。

关键词：教师胜任力高校教师评价

Heat Transfer and Friction Characteristics of Printed Circuit Heat Exchangers with Different Channel Structures for S-CO_(2) Power System

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Journal of Thermal Science 2024年第3期33卷 1132-1147页

作者： jiang Tao LI Mingjia Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education School of Energy and Power EngineeringXi’an Jiaotong UniversityXi’an710049China School of Mechanical Engineering Beijing Institute of TechnologyBeijing100081China

Printed circuit heat exchanger(PCHE)has been widely used in supercritical carbon dioxide(S-CO_(2))power systems because of its high heat transfer efficiency and good ***,due to the large variety of PCHE configurations,channel selection in practical applications lacks a ***,this paper discussed the heat transfer and friction characteristics and the synergy of three fields in the channel under the guidance of the field synergy principle for four typical PCHE ***,the comprehensive performance of four channels was ***,the heat transfer and friction factor correlations for S-CO_(2)in four channels were *** findings demonstrate that the synergy of velocity and pressure fields of the straight channel PCHE is better(β≈180°),so its resistance loss is relatively *** zigzag and sinusoidal wavy channels and the airfoil fins can reduce the angle a between the temperature gradient and velocity,thus enhancing the heat *** sinusoidal wavy channel can reduce flow resistance compared to the zigzag channel due to the rounded *** streamlined airfoil structure can guide the flow and reduce backflow,thus reducing resistance *** the range of Re studied in this paper,the maximum error of the proposed heat transfer and friction factor correlations of PCHE is 7.0%,which shows good fitting *** research in this paper can provide a reference for the selection and design of PCHE with different channel configurations.

关键词： printed circuit heat exchanger supercritical carbon dioxide typical channel structure field synergy analysis

An improved initial rotor position estimation method using high-frequency pulsating voltage injection for PMSM

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Defence Technology（防务技术） 2024年第3期33卷 19-29页

作者： Yang jiang Ming Cheng School of Electrical Engineering Southeast UniversityNanjing 210096China

High frequency pulsating voltage injection method is a good candidate for detecting the initial rotor position of permanent magnet synchronous ***,traditional methods require a large number of filters,which leads to the deterioration of system stability and dynamic *** order to solve these problems,a new signal demodulation method is proposed in this *** proposed new method can directly obtain the amplitude of high-frequency current,thus eliminating the use of filters,improving system stability and dynamic performance and saving the work of adjusting filter *** addition,a new magnetic polarity detection method is proposed,which is robust to current measurement ***,experiments verify the effectiveness of the method.

关键词： Initial position detection Signal demodulation algorithm Magnetic polarity detection Filter elimination

Co/CoO heterojunction rich in oxygen vacancies introduced by O2 plasma embedded in mesoporous walls of carbon nanoboxes covered with carbon nanotubes for rechargeable zinc-air battery

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Carbon Energy 2024年第7期6卷 14-25页

作者： Leijun Ye Weiheng Chen Zhong-Jie jiang Zhongqing jiang Key Laboratory of Optical Field Manipulation of Zhejiang Province Department of PhysicsZhejiang Sci-Tech UniversityHangzhouChina Department of Mechanical Engineering Ningbo University of TechnologyNingboChina Guangzhou Key Laboratory for Surface Chemistry of Energy Materials Guangdong Engineering and Technology Research Center for Surface Chemistry of Energy MaterialsCollege of Environment and EnergySouth China University of TechnologyGuangzhouChina

Herein,Co/CoO heterojunction nanoparticles(NPs)rich in oxygen vacancies embedded in mesoporous walls of nitrogen-doped hollow carbon nanoboxes coupled with nitrogen-doped carbon nanotubes(P-Co/CoOV@NHCNB@NCNT)are well designed through zeolite-imidazole framework(ZIF-67)carbonization,chemical vapor deposition,and O_(2) plasma *** a result,the threedimensional NHCNBs coupled with NCNTs and unique heterojunction with rich oxygen vacancies reduce the charge transport resistance and accelerate the catalytic reaction rate of the P-Co/CoOV@NHCNB@NCNT,and they display exceedingly good electrocatalytic performance for oxygen reduction reaction(ORR,halfwave potential[EORR,1/2=0.855 V *** hydrogen electrode])and oxygen evolution reaction(OER,overpotential(η_(OER,10)=377mV@10mA cm^(−2)),which exceeds that of the commercial Pt/C+RuO_(2) and most of the formerly reported ***,both the aqueous and flexible foldable all-solid-state rechargeable zinc-air batteries(ZABs)assembled with the P-Co/CoOV@NHCNB@NCNT catalyst reveal a large maximum power density and outstanding long-term cycling ***-principles density functional theory calculations show that the formation of heterojunctions and oxygen vacancies enhances conductivity,reduces reaction energy barriers,and accelerates reaction kinetics *** work opens up a new avenue for the facile construction of highly active,structurally stable,and cost-effective bifunctional catalysts for ZABs.

关键词： heterojunction oxygen evolution/reduction reaction oxygen vacancies rechargeable zinc–air battery three‐dimensional nitrogen‐doped hollow carbon nanoboxes