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Shells in the cabinet:four new species of Tellinidae(Mollusca:Bivalvia:Tellinoidea)identified from existing South China Sea collections

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Journal of Oceanology and Limnology 2024年第2期42卷 627-639页

作者： yuyan zhang Junlong zhang School of Life Sciences Qingdao Agricultural UniversityQingdao 266109China Laboratory of Marine Organism Taxonomy and Phylogeny Qingdao Key Laboratory of Marine Biodiversity and ConservationInstitute of OceanologyChinese Academy of SciencesQingdao 266071China Marine Biological Museum Chinese Academy of SciencesQingdao 266071China University of Chinese Academy of Sciences Beijing 100049China

Four species new to science were identified in the Tellinidae museum collections in the Marine Biological Museum of Chinese Academy of *** triquetra ***.,collected in 1981,has not previously been described or *** differs from other Pinguitellina species by its trigonal shape,rose-colored valve interior,and deep and wide pallial sinus,which is confluent with the pallial *** protuberangla *** a broad and deep dorsal corner,short and straight posterodorsal margin,comparatively large adductor scars,depressed and fragile shells,and deep socket at the anterior edge of the right *** minuta *** previously misidentified as Arcopella casta in *** is a new species based on its unique characteristics,which include small,fragile,inflated,translucent,and triangularly ovate-shaped shells with acuminated and convex *** the first species described in China within the genus Abranda Iredale,1924,Abranda xui *** internal ligaments and thin,fragile,and translucent elliptical shells with fine radials on the *** this study,we reorganized the species currently contained in the two genera Pinguitellina and Abranda and created keys to the known *** believe that numerous collected bivalve specimens have been overlooked in the South China Sea,and to date,mollusk has not been adequately ***,further exploration and analysis are required to understand species diversity in this area.

关键词： Abranda morphology Pinguitellina species diversity taxonomy Tellinidae

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Molecular Dynamics Simulation for the Impact of External Electric Fields on CaCl2 Aqueous Solution

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Chemical Research in Chinese Universities 2016年第4期32卷 641-646页

作者： HAN Yong ZHU Lilan zhang yuyan School of Electrical Engineering Yanshan University Qinhuangdao 066004 P. R. China

Non-equilibrium molecular dynamics（MD） simulations were performed according to the electronic anti-fouling technology, and some structural parameters and dynamic parameters of CaCl2 aqueous solution were taken as indicators to compare the different effect on the anti-fouling performance by applying different electric fields. The results show that electric fields can effectively decrease the viscosity of CaCl2 aqueous solution and enhance the ionic activity by enlarging the self-diffusion coefficient. In addition, with the same electric field strength, the electrostatic field is more effective at decreasing the viscosity of CaCI2 aqueous solution and increasing the self-diffusion coefficient of water molecules, while the alternating electric field is more effective at increasing the self-diffusion coefficient of Ca2＋. Furthermore, an alternating electric field with different frequencies was applied; the results show that an 800 kHz frequency is most effective to decrease the viscosity, and a 700 kHz frequency is most effective to en- hance the self-diffusion coefficient of water molecule. Otherwise, 400 kHz is most effective to enhance the self-diffusion coefficient of Ca2＋. Additionally, by studying the change of structure parameters, it was concluded that an external electric field can enhance the hydration between Ca2＋ and coordinated water molecules, and the alternating electric field is more effective in this respect.

关键词： Electronic anti-fouling(EAF) Molecular dynamics(MD) simulation Viscosity Self-diffusion coefficient Structure parameter

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小麦Glu-D1位点高分子量麦谷蛋白亚基对面条品质影响研究

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核农学报 2025年第1期39卷 88-95页

作者：张玉燕周红伟叶皓炫张晓科郭波莉赵海燕张影全青岛农业大学食品科学与工程学院山东青岛266109 中国农业科学院农产品加工研究所/农业农村部粮油加工综合利用技术集成实验室北京100193 中国农业科学院西部农业研究中心新疆昌吉831100 西北农林科技大学农学院陕西杨凌712100

小麦高分子量麦谷蛋白亚基(HMW-GSs)是影响面条产品质量的关键蛋白组分,其中Glu-D1位点编码的HMW-GSs对面团及面制品的品质贡献效应最大。为明确Glu-D1位点不同HMW-GS对3类主要面条产品品质的影响规律,本研究以小偃22遗传背景下Glu-D1位... 详细信息

小麦高分子量麦谷蛋白亚基(HMW-GSs)是影响面条产品质量的关键蛋白组分,其中Glu-D1位点编码的HMW-GSs对面团及面制品的品质贡献效应最大。为明确Glu-D1位点不同HMW-GS对3类主要面条产品品质的影响规律,本研究以小偃22遗传背景下Glu-D1位点HMW-GSs分别为2+12、3+12、4+12和5+10的4个BC6F4代近等基因系为试验材料,系统研究比较了4种亚基对鲜湿面、挂面以及冷冻熟面品质的影响规律。结果表明,与其他亚基相比,含有3+12亚基的鲜湿面具有较好的烹调吸水率和较低的烹调损失率,同时硬度、弹性、回复性、咀嚼性等较好;含有3+12亚基的挂面最佳煮制时间短、烹调吸水率较高、烹调损失率较低,而含有2+12亚基的挂面硬度和咀嚼性适中、黏附性低、回复性较高;含有3+12和2+12亚基的冷冻熟面冻藏稳定性较好,含有3+12亚基的冷冻熟面硬度适中,咀嚼性较高,整体质构特性表现较好。本研究结果可为面条专用小麦品种选育、专用加工原粮选择、专用粉开发等提供参考。

关键词： HMW-GS Glu-D1位点鲜湿面挂面冷冻熟面

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Photocatalytic water splitting of ternary graphene-like photocatalyst for the photocatalytic hydrogen production

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Frontiers of Environmental Science & Engineering 2020年第4期14卷 159-171页

作者： Yan zhang yuyan zhang Xue Li Xiaohan Zhao Cosmos Anning John Crittenden Xianjun Lyu School of Chemical an d Environmental Engineering Shandong University of Science and TechnologyQingdao 266000China School of Civil and Environmental Engineering Georgia Institute of TechnologyAtlantaGA 30332-0595USA

In recent times,there has been an increasing demand for energy which has resulted in an increased consumption of fossil fuels thereby posing a number of challenges to the *** the course finding possible solutions to this environmental canker,solar photocatalytic water splitting to produce hydrogen gas has been identified as one of the most promising methods for generating renewable *** retard the recombination of photogenerated carriers and improve the efficiency of photocatalysis,the present paper reports a facile method called the hydrothermal method,which wa s used to prepare ternary graphene-like photocatalyst.A“Design Expert”was used to investigate the influence of the loading weight of Mo and GO as well as the temperature of hydrothermal reaction and their interactions on the evolution of hydrogen(H 2)in 4 *** experimental results showed that the ternary graphene-like photocatalyst has a strong photocatalytic hydrogen production activity compared to that of pure *** particular,the catalyst added 2.5 wt%of GO weight yielded the highest quantum of 21.69%at 400-700 nm of *** optimal evolution H2 in 4 h conditions was obtained as follows:The loading weight of Mo was 8.19 wt%,the loading weight of GO was 2.02 wt%,the temperature of the hydrothermal reaction was 200.93℃.Under the optimum conditions,the evolution of H2 in 4h could reach 4.2030 mL.

关键词： Water splitting Visible light Graphene-like photocatalyst Response surface methodology

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A Theoretical Outline for National Security Studies for the New Era

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Social Sciences in China 2022年第2期43卷 16-35页

作者： zhang yuyan Feng Weijiang Li Guanghui Institute of World Economics and Politics Chinese Academy of Social Sciences(CASS) 不详

China is tasked with attaining the great rejuvenation of the Chinese nation and facing global changes unseen in a *** this end,a pressing task for China’s national security studies in the new era,under the guidance of a holistic concept of national security,is to provide an analytical framework and scholarly *** theoretical propositions can be derived when we clarify the relationships between security level,security capability,and security *** are:absolute security is out of reach;growing security investment that eyes absolute security will create a security dilemma;under closed conditions,the country should put the brakes on building relative security when it achieves equilibrium security;under open conditions,hegemonic powers may generate security capabilities that exceed equilibrium security and tend to“protect”or prey on countries whose development has relatively high output efficiency rather than those whose security capabilities have relatively high output efficiency;and following separate technical routes for dealing with intentional and unintentional threats may achieve a higher security level than managing in an undifferentiated ***“Great Yu Improvement”pattern is pivotal to“Building a Community with a Shared Future for Mankind”as it can transform other actors’capacity to address intentional threats into a capacity for shielding oneself against unintentional threats;and appropriate allocation of excessive security capability and stronger national system security capability are major solutions to the uncertain nature of security threats.

关键词： holistic concept of national security national security studies in the new era security capability equilibrium security the Great Yu Improvement pattern

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Corrosion and Penetration Resistance of Corundum Bricks to High Phosphorus Oolitic Hematite Reducing Materials

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China's Refractories 2017年第3期26卷 32-37页

作者： FAN Duncheng zhang yuyan NI Wen Key Laboratory of the Ministry of Education of China for High-efficient Mining and Safety of Metal Mines University of Science and Technology Beijing Industrial Energy Saving and Environmental Protection Research Institute CCID

The paper aims at investigating whether corundum bricks can be used for the bottom, of the direct reduction furnace of high phosphorus oolitic hematite. The reducing materials including high phosphorus oolitic hematite, bitumite, Ca（OH） 2 and Na2CO3 at a mass ratio of 1：0. 15：0. 15：0. 03 were mixed and pressed into carbon containing cylindrical specimens with the size of Ф15 mm × 20 mm. The specimens were placed on the corundum bricks and reduced in a high temperature tube furnace at 1 200 ℃ for 40, 60, 80, 140 and 220 min, respective- ly. The corrosion and penetration resistance of corundum. bricks to high phosphorus oolitic hematite reducing materials were analyzed with XRD, SEM and EDS. It shows that the reducing slag formed in the reduction process corrodes the surface of corundum bricks to form a product layer of anorthite and hercynite, retarding the further corrosion of the reducing slag; the reducing slag which has penetrated into the interior of the brick goes through the gaps between the particles and generates anorthite and hercynite, filling the gaps and hindering the reducing slag penetration.

关键词： corundum bricks high phosphorus oolitic hematite mehing reduction iron-making anorthite corrosion penetration

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A New Technique for Calculating Oxygen Fugacity of a Magma Using Uraninite in Granites

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Acta Geologica Sinica(English Edition) 2021年第2期95卷 708-709页

作者： GUO Jian LI Ziying HUANG Zhizhang LI Xiuzhen zhang yuyan FAN Chou Beijing Research Institute of Uranium Geology Beijing 100029China Key Laboratory of Uranium Resource Exploration and Evaluation Technology Chinese National Nuclear CorporationBeijingChina South-Central University for Nationalities Wuhan 430074HubeiChina

Objective Oxygen fugacity is an important physicochemical parameter of magmas in addition to temperature,pressure and elemental concentrations,representing a major research topic in natural and experimental *** from oxygen probe work,where a direct measurement is made using an oxygen sensor to detect the oxygen content in the fluid and molten metal.

关键词： Oxygen Magma representing

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Machine learning-based detection of cervical spondylotic myelopathy using multiple gait parameters

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Biomimetic Intelligence & Robotics 2023年第2期3卷 30-40页

作者： Xinyu Ji Wei Zeng Qihang Dai yuyan zhang Shaoyi Du Bing Ji School of Control Science and Engineering Shandong UniversityJinan 250061China School of Physics and Electromechanical Engineering Longyan UniversityLongyan 364012China Institute of Artificial Intelligence and Robotics Xi’an Jiaotong UniversityXi’an 710049China

Cervical spondylotic myelopathy(CSM)is the main cause of adult spinal cord dysfunction,mostly appearing in middle-aged and elderly ***,the diagnosis of this condition depends mainly on the available imaging tools such as X-ray,computed tomography and magnetic resonance imaging(MRI),of which MRI is the gold standard for clinical ***,MRI data cannot clearly demonstrate the dynamic characteristics of CSM,and the overall process is far from ***,this study proposes a new method using multiple gait parameters and shallow classifiers to dynamically detect the occurrence of *** the present study,45 patients with CSM and 45 age-matched asymptomatic healthy controls(HCs)were recruited,and a three-dimensional(3D)motion capture system was utilized to capture the locomotion ***,63 spatiotemporal,kinematic,and nonlinear parameters were extracted,including lower limb joint angles in the sagittal,coronal,and transverse ***,the Shapley Additive exPlanations(SHAP)value was utilized for feature selection and reduction of the dimensionality of features,and five traditional shallow classifiers,including support vector machine(SVM),logistic regression(LR),k-nearest neighbor(KNN),decision tree(DT),and random forest(RF),were used to classify gait patterns between CSM patients and *** the basis of the 10-fold cross-validation method,the highest average accuracy was achieved by SVM(95.56%).Our results demonstrated that the proposed method could effectively detect CSM and thus serve as an automated auxiliary tool for the clinical diagnosis of CSM.

关键词： Cervical spondylotic myelopathy Gait analysis Machine learning Shapley Additive exPlanations

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Ultrasoft,sensitive fiber-like sensor by assembly of bacterial cellulose(BC)nanofibrils and BC molecules for biocompatible strain sensing

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Nano Research 2023年第3期16卷 4067-4076页

作者： Si Meng yuyan zhang Nihuan Wu Cheng Peng ZhiYao Huang Zhengjie Lin Cheng Qi Zhou Liu Tiantian Kong College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518000China Department of Biomedical Engineering School of MedicineShenzhen UniversityShenzhen 518000China D Printing Clinical Translational and Regenerative Medicine Center Shenzhen Qianhai Shekou Free Trade Zone HospitalShenzhen 518067China College of Mechatronics and Control Engineering Shenzhen UniversityShenzhen 518000China Department of Urology Inst Translat MedThe First Affiliated Hospital of Shenzhen UniversityShenzhen Second People’s HospitalShenzhen 518000China

The development of implantable bioelectronics is driven by emerging applications including continuous health monitoring and human-machine *** mechanical mismatch between implanted bioelectronics and tissues not only compromises device accuracy,but also causes interference with tissues *** address this issue,it is necessary to develop ultrasoft and biocompatible fiber strain sensor with proper stretchability and ***,we fabricate a bacterial cellulose-based sensing fiber which possesses the stretchability and elastic modulus(~102 kPa)close to those of soft *** addition,such fiber has high sensitivity to tiny tensile force/strain(8.8×10^(−3)N/2.5%)and low cell *** excellent properties make the bacterial cellulose(BC)-based sensing fiber an excellent candidate of implantable bioelectric devices for monitoring subtle motions of *** demonstrate this by applying it for continuous monitoring of human pulse and bullfrog ***(BC/oxBC)@PANI(ox=oxidized and PANI=polyaniline)fibers can further be woven into an array sensor and serve more complex sensing functions,such as multipoint force perception and shape recognition as demonstrated.

关键词： bioelectronics fiber bacteria cellulose spinning sensor

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Review and Outlook of World Economy in 2021

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Contemporary World 2022年第1期 31-36页

作者： zhang yuyan Chinese Academy of Social Sciences(CASS) Institute of World Economics and Politics CASS

The year 2021 witnessed a rapid recovery of the global economy following its largest recession since World War *** development of vaccines,the increased vaccinated population and the strengthened prevention and control at all levels have worked together to weaken the impact of the COVID-19 pandemic on the world ***,the fiscal and monetary policies launched by various countries,especially the major economies,in response to the pandemic have also boosted the economic recovery to varying *** instability of the COVID-19 situation and side effects of response policies together with various problems existing before the pandemic and the direction and intensity of future policy adjustment of major economies have constituted the basic factors affecting the trend of the world economy in 2022.

关键词： Outlook World policy

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