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Journal of Materials Science & Technology 2023年第6期137卷 184-192页

作者： Haibin Ma Xuejing Yang Zhili Wang Qing Jiang Key Laboratory of Automobile Materials Ministry of Educationand School of Materials Science and EngineeringJilin UniversityChangchun 130022China

The design of high-performance electrocatalysts for alkaline water splitting is of significant importance for the development of a sustainable hydrogen economy.Herein,heterostructured Co_(3)Mo nanoparti-cles/porous CoMoO_(3)nanosheets(Co_(3)Mo/CoMoO_(3)NPSs)were constructed for alkaline water splitting by annealing CoMoO x nanosheets under controlled atmospheres.Thanks to its interfacial electronic structure and increased electrochemical active area,Co_(3)Mo/CoMoO_(3)NPSs exhibit impressive hydrogen evolution reaction(HER)activity with an overpotential of 334 mV at 1000 mA cm^(-2) and a Tafel slope of 46.4 mV per decade in 1.0 M KOH,which outperforms Pt/C catalyst(621 mV and 74.7 mV per decade).Density functional theory calculations illustrate the electron transfer from Co_(3)Mo to CoMoO_(3)at the interfaces,where electron accumulation on CoMoO_(3)favors the dissociation of H_(2)O molecule,and electron-deficient Co atoms in Co_(3)Mo have optimized H∗absorption energy for HER.The Co_(3)Mo/CoMoO_(3)NPSs also exhibit higher oxygen evolution reaction activity than the RuO_(2)catalyst.Moreover,the water electrolyzer us-ing Co_(3)Mo/CoMoO_(3)NPSs as both cathode and anode only requires 1.59 V to deliver a current density of 100 mA cm^(-2)in 1.0 M KOH,which outperforms benchmark Pt/C||RuO_(2)electrodes couple with 1.69 V to reach the same current density,providing great potential for large-scale applications.

关键词： Interface engineering Heterostructures Interfacial electronic structure Hydrogen evolution reaction Overall water splitting

Hypoglycemic effect and the mechanism of action of a polysaccharide from sweet corncob in a high-fat diet and streptozotocin-induced diabetic mice

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Food Science and Human Wellness 2024年第3期13卷 1543-1555页

作者： Xin wang Weiye Xiu Ye Han Zhili Wang Yu Luo Yongqiang Ma Heilongjiang Provincial Key Laboratory of Cereals and Comprehensive Processing of Cereal Resources College of Food EngineeringHarbin University of CommerceHarbin 150028China

Type 2 diabetes mellitus(T2DM)is a metabolic disease caused by a glycolipid metabolism disorder and isletβ-cell dysfunction.SCP-80-I is a biologically active water-soluble polysaccharide isolated from sweet corncob,an agricultural byproduct.The hypoglycemic effects of SCP-80-I on T2DM mice and its mechanisms were investigated in this study.SCP-80-I was found to significantly reduce blood glucose and lipid deposition levels in T2DM mice,as well as decrease serum leptin and increase adiponectin secretion.Interestingly,real time-polymerase chain reaction(RT-PCR)and Western blotting results revealed that SCP-80-I could regulate the expression of several glycolipid metabolisms and insulin secretion genes and proteins,including 5'-AMP-activated protein kinase(AMPK),carnitine palmitoyltransferase I(CPTI),and acetyl coenzyme A carboxylase(ACC)in the liver and AMPK,sirtuin1(Sirtl),peroxisome proliferator-activated receptorycoactivator-1(PGC-1α),and uncoupling protein 2(UCP2)in the pancreas.To have a hypoglycemic effect,SCP-80-1 regulated glycolipid metabolism and islet cell function in the liver by regulating the AMPK/AC C/CPT1 signaling pathway and the AMPK/Sirt1/PGC-1αand AMPK/Sirtl/UCP2 signaling pathways.These findings improve our understanding of polysaccharides derived from sweet corncob and the use of SCP-80-I in the production of hypoglycemic foods.

关键词： Sweet corn cob polysaccharide Type 2 diabetes Signal pathway 5’-AMP-activated protein kinase(AMPK)

Equilibrium Climate Response of the East Asian Summer Monsoon to Forcing of Anthropogenic Aerosol Species

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Journal of Meteorological Research 2017年第6期31卷 1018-1033页

作者： Zhili Wang Qiuyan wang Hua ZHANG State Key Laboratory of Severe Weather/Key Laboratory of Atmospheric Chemistry of China Meteorological Administration Chinese Academy of Meteorological Sciences Beijing 100081 Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science&TechnologyNanjing 210044 Laboratory for Climate Studies National Climate CenterChina Meteorological AdministrationBeijing 100081

We used an online aerosol-climate model to study the equilibrium climate response of the East Asian summer monsoon （EASM） to increases in anthropogenic emissions of sulfate, organic carbon, and black carbon aerosols from 1850 to 2000. Our results show that each of these aerosol species has a different effect on the EASM as a result of changes in the local sea-land thermal contrast and atmospheric circulation. The increased emission of sulfate aerosol leads to a decrease in the thermal contrast between the land and ocean, a southward shift of the East Asian subtropical jet, and significant northerly wind anomalies at 850 hPa over eastern China and the ambient oceans, markedly dampening the EASM. An increase in organic carbon aerosol results in pronounced surface cooling and the forma- tion of an anomalous anticyclone over the oceans north of 30°N. These effects cause a slight increase in the sea-land thermal contrast and southerly flow anomalies to the west of the anticyclonic center, strengthening the northern EASM. An increase in organic carbon emission decreases the sea-land thermal contrast over southern China, which weakens the southern EASM. The response of the summer 850-hPa winds and rainfall over the East Asian monsoon region to an increase in black carbon emission is generally consistent with the response to an increase in organic carbon. The increase in black carbon emission leads to a strengthening of the northern EASM north of 35°N and a slight weakening of the southern EASM south of 35°N. The simulated response of the EASM to the increase in black carbon emission is unchanged when the emission of black carbon is scaled up by five times its year 2000 levels, although the intensities of the response is enhanced. The increase in sulfate emission primarily weakens the EASM, whereas the increases in black carbon and organic carbon emissions mitigate weakening of the northern EASM.

关键词： East Asian summer monsoon sulfate black carbon organic carbon equilibrium climate response

Ultrasmall AuPd nanoclusters on amine-functionalized carbon blacks as high-performance bi-functional catalysts for ethanol electrooxidation and formic acid dehydrogenation

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Journal of Energy Chemistry 2022年第5期31卷 556-563页

作者： Yuhuan Cui Ming Zhao Yining Zou Junyu Zhang Jiuhui Han Zhili Wang Qing Jiang Key Laboratory of Automobile Materials Ministry of EducationSchool of Materials Science and EngineeringJilin UniversityChangchun 130022JilinChina Frontier Research Institute for Interdisciplinary Sciences(FRIS) Tohoku UniversitySendai 980-8578Japan

The synthesis of ultrasmall metal nanoclusters(NCs) with high catalytic activities is of great importance for the development of clean and renewable energy technologies but remains a challenge. Here we report a facile wet-chemical method to prepare ~1.0 nm Au Pd NCs supported on amine-functionalized carbon blacks. The Au Pd NCs exhibit a specific activity of 5.98 mA cm_(AuPd)^(-2)and mass activity of 5.25 A mg_(auPd)^(-1) for ethanol electrooxidation, which are far better than those of commercial Pd/C catalysts(1.74 mAcm_(AuPd)^(-2) and 0.54 A mg_(Pd)^(-1) ). For formic acid dehydrogenation, the Au Pd NCs have an initial turn over frequency of 49339 h^(-1) at 298 K without any additive, which is much higher than those obtained for most of reported Au Pd catalysts. The reported synthesis may represent a facile and low-cost approach to prepare other ultrasmall metal NCs with high catalytic activities for various applications.

关键词： Ethanol electrooxidation Formic acid dehydrogenation AuPd Nanoclusters Bi-functional catalyst

Self-assembly of semiconductor nanoparticles toward emergent behaviors on fluorescence

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Nano Research 2021年第5期14卷 1233-1243页

作者： Xiao Li zhili Lu Tie wang Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living BiosystemsInstitute of ChemistryChinese Academy of SciencesBeijing100190China University of Chinese Academy of Sciences Beijing100049China Key Laboratory of Materials Processing and Mold Ministry of EducationZhengzhou UniversityZhengzhou450001China Life and Health Research Institute School of Chemistry and Chemical EngineeringTianjin University of TechnologyTianjin300384China

Due to the unique fluorescence characteristics,superstructures from self-assembly of semiconductor nanoparticles have become essential components of material and chemical science,and thus it has broad application potential in displays,single-photon source,sensing,biological tagging and emerging quantum technologies.Superstructure refers to an artificial functional architecture whose length scale is between the quantum scale and the macroscale.When solely treating this complicated stage fitted from less complicated pieces together(basic nanoparticles)and pile speculation on speculation,we must understand the fundamental questions,that is,what the hierarchy or specialization of function is at the stage.The uniqueness of this stage is not the collection of basic nanoparticles,but the behavior that emerges on fluorescence-basically a new type of behavior.Under the angle of view,this study reviews the advances in the fluorescence of individual semiconductor nanoparticles,inter-nanoparticles coupling and thus emergent fluorescence behaviors of assemblies.We also try to present the methodology for seeking emergent behaviors on fluorescence.

关键词： nanoparticle assembly optical properties ordered structures coupling emergent

Controllable image generation based on causal representation learning

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Frontiers of Information Technology & Electronic Engineering 2024年第1期25卷 135-148页

作者： Shanshan HUANG Yuanhao wang zhili GONG Jun LIAO Shu wang Li LIU School of Big Data and Software Engineering Chongqing UniversityChongqing 401331China School of Materials and Energy Southwest UniversityChongqing 400715China

Artificial intelligence generated content(AIGC)has emerged as an indispensable tool for producing large-scale content in various forms,such as images,thanks to the significant role that AI plays in imitation and production.However,interpretability and controllability remain challenges.Existing AI methods often face challenges in producing images that are both flexible and controllable while considering causal relationships within the images.To address this issue,we have developed a novel method for causal controllable image generation(CCIG)that combines causal representation learning with bi-directional generative adversarial networks(GANs).This approach enables humans to control image attributes while considering the rationality and interpretability of the generated images and also allows for the generation of counterfactual images.The key of our approach,CCIG,lies in the use of a causal structure learning module to learn the causal relationships between image attributes and joint optimization with the encoder,generator,and joint discriminator in the image generation module.By doing so,we can learn causal representations in image’s latent space and use causal intervention operations to control image generation.We conduct extensive experiments on a real-world dataset,CelebA.The experimental results illustrate the effectiveness of CCIG.

关键词： Image generation Controllable image editing Causal structure learning Causal representation learning

The morphodynamic responses to deposition-promoting projects in island and reef coasts of the Zhoushan Archipelago,China

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International Journal of Sediment Research 2017年第3期32卷 351-363页

作者： Qingzhi Hou Zhili Wang Yongjun Lu Siping Mo State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Nanjing Hydraulic Research Institute

China’s island and reef coasts are mainly distributed along the coasts of Zhejiang and Fujian provinces.These areas have favorable deep-water conditions and great development potential. The Zhoushan Archipelago is a typical island and reef coast. In the midst of the islands, there are many tidal channels with high water depth and high current velocity. Daishan Island is located on the northern part of the Zhoushan Archipelago. The sea north of Daishan Island can be characterized as having great water depth(generally between 10 and 20 m), high current velocity(the maximum measured value is about 2 m/s),and hyperconcentrated suspended sediment(annual average concentration under normal weather conditions is about 0.6 kg/m~3). Sediment transport is influenced by the co-action of waves and currents.Land reclamation can ease the contradiction between the desire for development and the land resource shortage on island and reef coasts. Land reclamation generally starts from deposition-promoting projects on island and reef coasts with hyperconcentration of suspended sediment with the aim of reducing the reclamation cost. Based on the morphodynamic characteristics of the sea area near north of Daishan Island, a two-dimensional mathematical model was developed to analyze the co-action of current and waves and the model was verified for spring as well as neap tides in 2007 and 2012. The simulated values of tidal stages, tidal current velocities, tidal current directions, and suspended sediment concentration at15 stations in 2007 and 9 stations in 2012 were in good agreement with the in-situ measured values.Furthermore, the simulated magnitude and pattern of erosion and sedimentation agreed well with the observations. This model was used to evaluate the effects of a proposed siltation scheme on the hydrodynamic environment and morphological change of the study area. The results of this study can inform the protection, development, and utilization of shoal-channels on island and reef coasts, as well provide a scientific basis

关键词： Tidal current Wave Sedimentation Numerical simulation Island and reef coasts Deposition-promoting projects

Advances in the Study of Black Carbon Effects on Climate

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Advances in Climate Change Research 2011年第1期2卷 23-30页

作者： Hua Zhang Zhili Wang National Climate Center China Meteorological Administration Beijing 100081 China Chinese Academy of Meteorological Sciences Beijing 100081 China

黑碳(BC ) 喷雾器能强烈专心于太阳的放射很宽广光谱 wavebands，从对可见红外线。作为贡献全球温暖的一个潜在的因素， BC 喷雾器直接不仅改变地球空气系统的放射平衡，而且间接地由充当云冷凝作用原子核或冰原子核改变云 microphysic... 详细信息

黑碳(BC ) 喷雾器能强烈专心于太阳的放射很宽广光谱 wavebands，从对可见红外线。作为贡献全球温暖的一个潜在的因素， BC 喷雾器直接不仅改变地球空气系统的放射平衡，而且间接地由充当云冷凝作用原子核或冰原子核改变云 microphysical 性质影响全球或地区性的气候。这里，在由于 BC 和它的气候效果的放射的强迫的研究的最近的进步被考察。在当前的研究的无常被讨论，一些建议被为未来调查提供。引证张， H. ，和 Z. 王， 2011：在气候上在黑碳效果的学习进展。副词。Clim。变化物件， 2 (1 ) ， doi：10.3724/SP .J.1248.2011.00023。

关键词：黑碳气溶胶区域气候地球大气系统太阳辐射光谱波段全球变暖辐射平衡气候影响

A Trusted Edge Resource Allocation Framework for Internet of Vehicles

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Computers, Materials & Continua 2023年第11期77卷 2629-2644页

作者： Yuxuan Zhong Siya Xu Boxian Liao Jizhao Lu Huiping Meng Zhili Wang Xingyu Chen Qinghan Li State Key Laboratory of Networking and Switching Technology Beijing University of Posts and TelecommunicationsBeijing100876China State Grid Henan Information&Telecommunication Company Zhengzhou450018China School of Information Studies Syracuse UniversitySyracuse13244USA

With the continuous progress of information technique,assisted driving technology has become an effective technique to avoid traffic accidents.Due to the complex road conditions and the threat of vehicle information being attacked and tampered with,it is difficult to ensure information security.This paper uses blockchain to ensure the safety of driving information and introduces mobile edge computing technology to monitor vehicle information and road condition information in real time,calculate the appropriate speed,and plan a reasonable driving route for the driver.To solve these problems,this paper proposes a trusted edge resource allocation framework for assisted driving service,which includes two stages:the blockchain generation stage(the first stage)and assisted driving service stage(the second stage).Furthermore,in the first stage,a delay-and-throughput-oriented block generation model for the mobile terminal is designed.In the second stage,a balanced offloading algorithm for assisted driving service based on edge collaboration is proposed to solve the problems of unbalanced load of cluster mobile edge computing(MEC)servers and low resource utilization of the system.And this paper optimizes the throughput of blockchain and delay of the transportation network through deep reinforcement learning(DRL)algorithm.Finally,compared with joint computation and communication resources’allocation(JCCR)and resource allocation method based on binary offloading(RAB),our proposed scheme can optimize the delay by 7.4%and 26.7%,and support various application services of the vehicular networks more effectively.

关键词： Blockchain load balancing vehicular networks resource allocation

Clinical application of multidisciplinary teams in tumor therapy

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Chinese Journal of Cancer Research 2017年第2期29卷 168-170页

作者： Cong wang Dongjian Song zhili Xu Jiaxiang wang School of Humanities and Social Sciences Beihang University Department of Pediatric Surgery the First Affiliated Hospital of Zhengzhou University

Multidisciplinary team （MDT） model is a diagnostic and treatment model characterized by interdisciplinarity, integration, centralism, individualization, and precision and is becoming more common in the management of complex malignancies. MDT emphasizes team spirit and a personalized treatment strategy according to the actual condition of each patient. A cooperative and effective multidisciplinary team is an important guarantee for delivering high-quality services to patients. Under the guidance of a medical humanistic concept, MDT provides reasonable, effective, convenient, and a full range of excellent quality medical service to patients. The MDT maximizes patient benefits, and it is the developmental direction for large-scale general hospitals. At the same time, the MDT is also an important measure to strengthen the core competitiveness of hospitals. Here, we introduce the clinical application of the model in tumor therapy as well as the current state and development in our hospital.

关键词： Multidisciplinary team tumor therapy clinical application