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心脏术后体外膜肺氧合病人早期肠内营养的应用分析

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肠外与肠内营养 2024年第1期31卷 6-9页

作者：王晓航孟树萍刘华伟王书鹏王磊曹丹丹王梦豪程兆云阜外华中心血管病医院/河南省人民医院心脏中心成人心外重症监护病房河南郑州450003

目的:分析早期肠内营养在心脏术后静脉动脉体外膜肺氧合(VA-ECMO)病人中的应用效果。方法:选取2022年4月至2023年4月期间于阜外华中心血管病医院/河南省人民医院行心脏外科手术,术后并发心源性休克行VA-ECMO辅助的病人48例,采用随机数... 详细信息

目的:分析早期肠内营养在心脏术后静脉动脉体外膜肺氧合(VA-ECMO)病人中的应用效果。方法:选取2022年4月至2023年4月期间于阜外华中心血管病医院/河南省人民医院行心脏外科手术,术后并发心源性休克行VA-ECMO辅助的病人48例,采用随机数字表法将病人分为观察组和对照组,每组24例。观察组在ECMO启动后48 h内给予肠内营养,对照组在48 h后给予肠内营养。对比两组病人ECMO第7天能量达标情况、胃肠道并发症及院内感染发生率、ECMO时间、呼吸机时间、ICU时间、总住院时间及住院死亡率等指标。结果:观察组在ECMO第7天能量达标率高于对照组,胃潴留、消化道出血、腹胀、院内感染发生率低于对照组(P0.05)。结论:心脏术后VA-ECMO辅助病人早期肠内营养安全有效,可缩短ICU时间及总住院时间,有利于病人康复。

关键词：早期肠内营养心脏手术体外膜肺氧合临床应用

Progress and challenges of electrolyte modulation in aqueous zinc-ion batteries

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Rare Metals 2024年第7期43卷 2940-2967页

作者： Qi-hang Yang Lu-Fei wang xiao-Yu wang Meng-Meng Zhen Tianjin Key Laboratory of Clean Energy and Pollution Control School of Energy and Environmental EngineeringHebei University of TechnologyTianjin 300071China

As a new type of green battery system,aqueous zinc-ion batteries(AZIBs)have gradually become a research hotspot due to their low cost,high safety,excellent stability,high theoretical capacity(820 mAh·g^(-1))of zinc anode,and low redox potential(-0.76 V *** hydrogen electrode(SHE)).AZIBs have been expected to be an alternative to lithium-ion batteries for large-scale commercial energy storage ***,they are facing thorny issues such as degradation of cycling performance,zinc dendrites,and side *** the same time,these problems cause short cycling life of batteries,thus severely limiting their commercial *** recent years,many more researches have been conducted on the modification of anode and cathode materials of AZIBs,but there is a lack of in-depth discussion on the characteristics and mechanism of electrolyte *** this review,we will make a systematic summary of the current problems with two electrodes in AZIBs,as well as the types and functions of electrolyte ***,we further systematically describe the modulation mechanism of electrolyte additives in the performance of the cathode and *** prospects and development directions of additive modulation strategies for AZIBs electrolytes are prospected.

关键词： Electrolyte additives Aqueous zinc-ion batteries Zinc anode protection Cathode chemistry

钵体育苗技术对龙粳66秧苗素质、产量和品质的影响

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北方水稻 2024年第4期54卷 21-25页

作者：赫兵吴小阳王晓航郎红党姝王帅李超吉林农业科技学院农学院吉林吉林132101

试验选取龙粳66作为供试品种,探究了钵体育苗技术与传统平盘育苗技术对水稻秧苗素质、生育特性、产量和品质特性的的影响。结果表明,钵体育苗的最长根长显著优于平盘育苗。在生育期特性方面,钵体育苗显示出较低的株高但更高的分蘖数,且... 详细信息

试验选取龙粳66作为供试品种,探究了钵体育苗技术与传统平盘育苗技术对水稻秧苗素质、生育特性、产量和品质特性的的影响。结果表明,钵体育苗的最长根长显著优于平盘育苗。在生育期特性方面,钵体育苗显示出较低的株高但更高的分蘖数,且叶色变化高峰要早于平盘育苗。在产量构成要素方面,钵体育苗的每穴穗数显著优于平盘育苗,从而使计算产量显著高于平盘处理,而每穗粒数、结实率和千粒重之间的差异较小。品质方面,钵体育苗加工及外观品质方面略逊于平盘处理。而钵体育苗在黏度和平衡度方面优于平盘处理,蛋白质含量高于平盘育苗。钵体育苗在食味方面表现有所差异,钵体育苗相比平盘育苗米饭食味值更高,但稻米食味值却更低。

关键词：水稻钵体育苗秧苗素质产量品质

Improved nuclear mass formula with an additional term from the Fermi gas model

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Nuclear Science and Techniques 2024年第5期35卷 131-138页

作者： xiao-Yu Xu Li Deng Ai-Xi Chen hang Yang Amir Jalili Han-Kui wang School of Science Zhejiang Sci-Tech UniversityHangzhou 310018China

Nuclear mass is a fundamental property of nuclear physics and a necessary input in nuclear *** to the complexity of atomic nuclei and nonperturbative strong interactions,conventional physical models cannot completely describe nuclear binding *** this study,the mass formula was improved by considering an additional term from the Fermi gas *** nuclear masses in the Atomic Mass Evaluation Database were reproduced with a root-mean-square deviation(RMSD)of -1.86 MeV(1.92 MeV).The new mass formula exhibits good performance in the neutron-rich nuclear *** RMSD decreases to 0.393 MeV when the ratio of the neutron number to the proton number is≥1.6.

关键词： Nuclear mass formula Neutron-rich nuclei Fermi-gas model

Price Masking Strategy of Cross-Border E-Commerce Platform Financing

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Journal of Systems Science & Complexity 2024年第2期37卷 668-691页

作者： LI Jianbin hang Zhouxin CHEN Zhiyuan xiao Shan School of Management Huazhong University of Science and TechnologyWuhan 430074China School of Economics and Management Wuhan UniversityWuhan 430072China

E-commerce platform financing is a new service pattern of supply chain ***,this pattern may bring some new issues when considering the problem of cash flow shortage and financing difficulties of small and medium-sized *** enterprises use this service,they worry about the leakage of preferential wholesale price when applying the full loan amount and providing the true transaction *** on the model consisting of a supplier,a retailer and a cross-border e-commerce platform,the authors design a price masking strategy to prevent the retailer’s preferential wholesale price information from *** authors analyze the profit of the retailer and the platform before and after adopting the price masking *** authors find that the price masking strategy always benefits the ***,the optimal profit of the retailer and the platform are both affected by the loan interest ***,there exists a range of loan interest rates that can benefit both the retailer and the platform if the price masking strategy is *** research emphasizes that platform can expand the total business volume by allowing retailers to use price masking *** other words,there will be more and more retailers attracted by the strategy,which benefits the long-term growth of cross-border e-commerce platform financing.

关键词： Cross-border e-commerce e-commerce platform financing price masking supply chain finance

Collision-free parking recommendation based on multi-agent reinforcement learning in vehicular crowdsensing

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Digital Communications and Networks 2024年第3期10卷 609-619页

作者： Xin Li Xinghua Lei Xiuwen Liu hang xiao College of Computer Science and Technology China University of Petroleum(East China)QingDao266580China

The recent proliferation of Fifth-Generation(5G)networks and Sixth-Generation(6G)networks has given rise to Vehicular Crowd Sensing(VCS)systems which solve parking collisions by effectively incentivizing vehicle ***,instead of being an isolated module,the incentive mechanism usually interacts with other *** on this,we capture this synergy and propose a Collision-free Parking Recommendation(CPR),a novel VCS system framework that integrates an incentive mechanism,a non-cooperative VCS game,and a multi-agent reinforcement learning algorithm,to derive an optimal parking strategy in real ***,we utilize an LSTM method to predict parking areas roughly for recommendations *** incentive mechanism is designed to motivate vehicle participation by considering dynamically priced parking tasks and social network *** order to cope with stochastic parking collisions,its non-cooperative VCS game further analyzes the uncertain interactions between vehicles in parking *** its multi-agent reinforcement learning algorithm models the VCS campaign as a multi-agent Markov decision process that not only derives the optimal collision-free parking strategy for each vehicle independently,but also proves that the optimal parking strategy for each vehicle is ***,numerical results demonstrate that CPR can accomplish parking tasks at a 99.7%accuracy compared with other baselines,efficiently recommending parking spaces.

关键词： Incentive mechanism Non-cooperative VCS game Multi-agent reinforcement learning Collision-free parking strategy Vehicular crowdsensing

Nitrite-catalyzed economic and sustainable bromocyclization of tryptamines/tryptophols to access hexahydropyrrolo[2,3-b]indoles/tetrahydrofuroindolines in batch and flow

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Chinese Chemical Letters 2024年第7期35卷 247-252页

作者： xiao xiao Biao Chen Jia-Wei Li Jun-Bo Zheng Xu wang hang Zhao Fen-Er Chen Institute of Pharmaceutical Science and Technology Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of TechnologyHangzhou 310014China College of Chemistry and Chemical Engineering Jiangxi Normal UniversityNanchang 330022China Engineering Center of Catalysis and Synthesis for Chiral Molecules Department of ChemistryFudan UniversityShanghai 200433China Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs Shanghai 200433China

A highly efficient and concise bromocyclization has been successfully achieved,in which tryptamine/tryptophol derivates can be transformed to valuable HPI/TFI scaffolds with economic and green ***,a controllable cascade transformation of bromocyclization and aromatic bromination has also been smoothly achieved to form dibrominated HPIs and *** could be successfully scaled up under both the batch process and a continuous flow *** most remarkable peculiarity of our process over all previous methods is that the generated water is the major ***,successful application of this new protocol has been demonstrated by the pharmaceutical and natural products syntheses.

关键词： Tryptamines and tryptophols Nitrite Economic and sustainable bromocyclization HPI and TFI structures Bath and flow

Bio-inspired barnacle cement coating of biodegradable magnesium alloy for cerebrovascular application

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Rare Metals 2024年第10期43卷 5164-5185页

作者： hang Li Fei wang xiao-Jing Sun Liu-Jie Qi Jing-An Li Mujahid Iqbal Shao-Kang Guan School of Material Science and Engineering Zhengzhou University Henan Key Laboratory of Advanced Magnesium Alloy&Key Laboratory of Materials Processing and Mold (Ministry of Education) Zhengzhou University Department of Physics University of Agriculture Faisalabad

Ischemic stroke is increasing worldwide, and stent intervention has gradually become one of the effective treatments. Owing to its good mechanical properties and biocompatibility, biodegradable Mg-Zn-Y-Nd alloy(ZE21B) has good application prospects in vascular ***, too fast degradation and delayed endothelialization are the bottleneck problem to limit its further application. In this study, the bio-inspired coating barnacle cement cp19k is constructed on ZE21B surface through electrostatic spraying to improve the corrosion resistance and pro-endothelialization ability. The coating was evaluated through electrochemistry, static immersion corrosion,in vitro blood experiments and cell experiments. Cp19k effectively improved the corrosion resistance of the substrate ZE21B, reduced the degradation rate, improved endothelial cell proliferation and migration capabilities,inhibited smooth muscle cells proliferation and regulated contractile phenotype, inhibited macrophage adhesion,regulated macrophage M2 phenotype, and reduced the expression of inflammatory factor of TNF-a and inhibited fibroplasia in vivo. Our data indicated that the barnacle cement cp19k coating had potential application on the surface modification of Mg alloy cerebrovascular stent.

关键词： Barnacle cement cp19k Biodegradable magnesium alloy Cerebrovascular stent M2 phenotype Pro-endothelialization

Suppression of the regrowth interface leakage current in AlGaN/GaN HEMTs by Fe doped GaN substrate

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Science China(Information Sciences) 2024年第6期67卷 461-462页

作者： xiao wang Zhi-Yu LIN Yuan-hang SUN Long YUE Yu-Min Zhang Jian-Feng wang Ke XU School of Nano-Tech and Nano-Bionics University of Science and Technology of China Suzhou Institute of Nano-tech and Nano-bionics Chinese Academy of Sciences Information Materials Research Department Suzhou laboratory Suzhou Nanowin Science and Technology Co. Ltd. Jiangsu Institute of Advanced Semiconductors

In the process of homoepitaxy AlGaN/GaN heterojunction by metal-organic chemical vapor deposition (MOCVD) on free-standing substrates,Si impurities from the air and reaction chamber accumulate at the regrowth interfac...

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