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Coordination of distinctive pesticide adjuvants and atomization nozzles on droplet spectrum evolution for spatial drift reduction

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Chinese Journal of Chemical Engineering 2024年第2期66卷 250-262页

作者： Shidong xue Jingkun Han Xi Xi Zhong Lan Rongfu Wen xuehu ma State Key Laboratory of Fine Chemicals Liaoning Key Laboratory of Clean Utilization of Chemical ResourcesInstitute of Chemical EngineeringSchool of Chemical EngineeringDalian University of TechnologyDalian 16024China School of Fashion and Textiles The Hong Kong Polytechnic UniversityHong Kong 999077China China Tianchen Engineering Corporation Tianjin 300400China School of Energy and Power Engineering Dalian University of TechnologyDalian 116024China

Pesticide adjuvants,as crop protection products,have been widely used to reduce drift loss and improve utilization efficiency by regulating droplet ***,the coordinated regulation mechanisms of adjuvants and nozzles on droplet spectrum remain ***,we established the relationship between droplet spectrum evolution and liquid atomization by investigating the typical characteristics of droplet diameter distribution near the *** on this,the regulation mechanisms of distinctive pesticide adjuvants on droplet spectrum were clarified,and the corresponding drift reduction performances were quantitively evaluated by wind tunnel *** shows that the droplet diameter firstly shifts to the smaller due to the liquid sheet breakup and then prefers to increase caused by droplet *** the surface tension of sprayed liquid facilitates the uniform liquid breakup and increasing the viscosity inhibits the liquid deformation,which prolong the atomization process and effectively improve the droplet *** a result,the drift losses of flat-fan and hollow cone nozzles are reduced by about 50%after adding organosilicon and vegetable oil *** contrast,the air induction nozzle shows a superior anti-drift ability,regardless of distinctive *** findings provide insights into rational adjuvant design and nozzle selection in the field application.

关键词： Pesticide drift Spray droplets Particle size distribution Spray atomization Transport processes Adjuvants

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Angiosperm-wide analysis of fruit and ovary evolution aided by a new nuclear phylogeny supports association of the same ovary type with both dry and fleshy fruits

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Journal of Integrative Plant Biology 2024年第2期66卷 228-251页

作者： Yezi xiang Taikui Zhang Yiyong Zhao Hongjin Dong Hongyi Chen Yi Hu Chien-Hsun Huang Jun xiang Hong ma State Key Laboratory of Genetic Engineering Ministry of Education Key Laboratory of Biodiversity and Ecological EngineeringInstitute of Plant BiologyCenter of Evolutionary BiologySchool of Life SciencesFudan UniversityShanghai 200438China Department of Biology Howard Hughes Medical InstituteDuke UniversityDurhamNC 27708USA Department of Biology the Eberly College of Scienceand the Huck Institutes of the Life Sciencesthe Pennsylvania State UniversityUniversity ParkPA 16802USA Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization College of Biology and Agricultural ResourcesHuanggang Normal UniversityHuanggang 438000China

Fruit functions in seed protection and dispersal and belongs to many dry and fleshy types,yet their evolutionary pattern remains unclear in part due to uncertainties in the phylogenetic relationships among several orders and *** we used nuclear genes of 502 angiosperm species representing 231 families to reconstruct a well supported phylogeny,with resolved relationships for orders and families with previously uncertain *** this phylogeny as a framework,molecular dating supports a Triassic origin of the crown angiosperms,followed by the emergence of most orders in the Jurassic and Cretaceous and their rise to ecological dominance during the Cretaceous Terrestrial *** robust phylogeny allowed an examination of the evolutionary pattern of fruit and ovary types,revealing a trend of parallel carpel fusions during early diversifications in eudicots,monocots,and ***,taxa in the same order or family with the same ovary type can develop either dry or fleshy fruits with strong correlations between specific types of dry and fleshy fruits;such associations of ovary,dry and fleshy fruits define several ovaryfruit"modules"each found in multiple *** of the frequent modules has an ovary containing multiple ovules,capsules and berries,and another with an ovary having one or two ovules,achenes(or other single-seeded dry fruits)and *** new perspective of relationships among fruit types highlights the closeness of specific dry and fleshy fruit types,such as capsule and berry,that develop from the same ovary type and belong to the same module relative to dry and fleshy fruits of other modules(such as achenes and drupes).Further analyses of gene families containing known genes for ovary and fruit development identified phylogenetic nodes with multiple gene duplications,supporting a possible role of whole-genome duplications,in combination with climate changes and animal behaviors,in angiosperm fruit and ovary diversificat

关键词： angiosperm fruit evolution maDS-box molecular clock nuclear phylogeny ovary and fruit developmental genes

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Can Digital Transformation Definitely Improve Firms'markups?

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China Finance and Economic Review 2024年第1期13卷 23-42页

作者： xiang Dai Haowei ma Erzhen Zhang School of Economics Nanjing Audit University School of Economics Nanjing University

In this paper,digital transformation is included in the heterogeneity model of *** on a general equilibrium analysis,we find that under the effect of diminishing marginal productivity,digital transformation does not always have a positive impact on firms'markups,but has an"inverted U-shaped"nonlinear influence,which first promotes and then inhibits *** innovation and firm productivity are the key micro-mechanisms for the above effects to play a *** on the analysis of typical facts and empirical data of listed companies,the measurement test yields the following ***,digital transformation can significantly improve firms'markups when it is below a specific threshold value,but it will have a negative impact when it exceeds this *** is,there is an"inverted U-shaped"nonlinear relationship between digital transformation and firms'***,the heterogeneity analysis shows that digital transformation has a greater effect on the markups of state-owned firms,export firms and technology-intensive firms than on the markups of other ***,digital transformation has an impact on firms'markups through two key mechanisms:firm innovation ability and production *** quantitative empirical results confirm the correctness of the theoretical ***,firms need to grasp the strategic opportunities brought by the progress of digital technology and accelerate the process of promoting the digital *** should make proper choices in the selection and arrangement of key areas,as well as avoid possible problems such as"too much".In this way,we can better consolidate the micro foundation of China's high-quality economic development.

关键词： digital transformation firm markup rate inverted U-shaped

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Multicolor Circularly Polarized Luminescence of a Single-Component System Revealing Multiple Information Encryption

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CCS Chemistry 2024年第2期6卷 518-527页

作者： Ying Hu Zizhao Huang Itamar Willner xiang ma Key Laboratory for Advanced materials and Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materiobiology and Dynamic ChemistrySchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237 Institute of Chemistry The Center for Nanoscience and NanotechnologyThe Hebrew University of JerusalemJerusalem 91904

Metal-free materials with multicolor tunable circularly polarized luminescence(CPL)are attractive because of their potential applications in information storage and ***,we designed two enantiomers composed of chiral dialkyl glutamides and achiral vibration-induced emission(VIE)moiety,which can switch on CPL after a simple gelation *** is noteworthy that the CPL colors vary in different solvents,and this is attributed to various self-assembly-induced microstructures,in which the VIE moiety is restrained to different ***,a multidimensional code system composed of a quick response code,a ultraviolet(UV)light-activated color code,and a CPL information figure was *** our satisfaction,the system possesses multiple information-storage *** orthogonal anticounterfeiting and CPLenhanced encryption functions also improve the system information encryption *** brief,this study provides a practical example of CPL applied to information security and an effective approach to obtain a single-component color-tunable CPL material with multiple information storage and encryption functions as well.

关键词： circularly polarized luminescence information storage and encryption multicolor tunable single component vibration-induced emission

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Evaluation of teplizumab's efficacy and safety in treatment of type 1 diabetes mellitus:A systematic review and meta-analysis

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World Journal of Diabetes 2024年第7期15卷 1615-1626页

作者： Xiao-Lan ma Dan Ge xue-Jian Hu Department of Endocrinology and Metabolism The Second Affiliated Hospital of Lanzhou UniversityLanzhou 730000Gansu ProvinceChina

BACKGROUND Islets of Langerhans beta cells diminish in autoimmune type 1 diabetes mellitus(T1DM).Teplizumab,a humanized anti-CD3 monoclonal antibody,may help *** long-term implications on clinical T1DM development,safety,and efficacy are *** To assess the effectiveness and safety of teplizumab as a therapeutic intervention for individuals with *** A systematic search was conducted using four electronic databases(PubMed,Embase,Scopus,and Cochrane Library)to select publications published in peerreviewed journals written in *** odds ratio(OR)and risk ratio(RR)were calculated,along with their 95%*** assessed heterogeneity using Cochrane Q and I2 statistics and the appropriate P *** There were 8 randomized controlled trials(RCTs)in the current meta-analysis with a total of 1908 T1DM patients from diverse age cohorts,with 1361 patients receiving Teplizumab and 547 patients receiving a *** was found to have a substantial link with a decrease in insulin consumption,with an OR of 4.13(95%CI:1.72 to 9.90).Teplizumab is associated with an improved Cpeptide response(OR 2.49;95%CI:1.62 to 3.81)and a significant change in Glycated haemoglobin A1c(HbA1c)levels in people with type 1 diabetes[OR 1.75(95%CI:1.03 to 2.98)],and it has a RR of 0.71(95%CI:0.53 to 0.95).CONCLUSION In type 1 diabetics,teplizumab decreased insulin consumption,improved C-peptide response,and significantly changed HbA1c levels with negligible side *** appears to improve glycaemic control and diabetes management with good safety and efficacy.

关键词： Type-1 diabetes mellitus Teplizumab Anti-CD3 monoclonal antibody Insulin Glycated haemoglobin A1c Cpeptide

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Feasible Synthesis of N,O-Bidentate Difluoroboron Chromophores through Direct Functionalization of Quinoxalin-2(1H)-ones with Ketones in One Shot

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Chinese Journal of Chemistry 2024年第13期42卷 1481-1486页

作者： Shuaichen Zhang Jing Zhang xiang Ling Yifan Zhao Yue ma Peng Sun State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs Artemisinin Research Center and Institute of Chinese Materia MedicaChina Academy of Chinese Medical SciencesBeijing 100700China Department of Pharmaceutics School of PharmacyChina Pharmaceutical UniversityState Key Laboratory of Natural MedicinesNanjingJiangsu 210009China

Organic difluoroboron complexes are a kind of potential platforms for a wide range of applications owing to their excellent photophysical ***,we have explored a simple and direct synthesis methodology for a library of N,O-bidentate difluoroboron complexes from quinoxalin-2(1H)-ones and ketones in one *** photophysical properties of the generated complexes were evaluated and the application potential of these compounds on subcellular imaging was also explored.

关键词： N,O-Bidentate difluoroboron Chromophores Quinoxalin-2(1H)-ones Ketones/Green chemistry Synthetic method C-CcouplingI Boron

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Non-destructive method of small sample sets for the maize moisture content measurement during filling based on NIRS

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International Journal of Agricultural and Biological Engineering 2024年第4期17卷 236-244页

作者： Tiemin ma Guangyue Zhang xue Wang Shujuan Yi Changyuan Wang College of Information and Electrical Engineering Heilongjiang Bayi Agricultural UniversityDaqing 163319HeilongjiangChina Daqing Center of Inspection and Testing for Agricultural Products and Processed Products Ministry of Agriculture Daqing 163319HeilongjiangChina Heilongjiang Province Research Center of Ecological Rice Seedling Raising Device and Whole Course Mechanized Engineering Technology Daqing 163319HeilongjiangChina College of Engineering Heilongjiang Bayi Agricultural UniversityDaqing 163319HeilongjiangChina

In maize breeding,limitations on sampling quantity and associated costs for measuring maize grain moisture during filling are imposed by factors like the planting area of new varieties,maize plant density,effective experimental spikes,and other ***,the conventional method of detecting moisture content in maize grains is slow,damages seeds,and necessitates many sample sets,particularly for high moisture content ***,a strong demand exists for a non-destructive quantitative analysis model of maize moisture content using a small sample set during grain *** Bayes-Merged-Bootstrap(BMB)sample optimization method,which built upon the Bayes-Bootstrap sampling method and the concept of merging,was proposed.A critical concern in dealing with small samples is the relationship between data distribution,minimum sample value,and sample size,which has been thoroughly *** to the Bayes-Bootstrap sample selection method,the BMB method offers distinct advantages in the optimized selection of small samples for non-destructive *** quantitative analysis model for maize grain moisture content was established based on the support vector machine *** demonstrate that when the optimal resampling size is 1000 times or more than the original sample size using the BMB method,the model exhibits strong predictive capabilities,with a determination coefficient(R2)>0.989 and a relative prediction determination(RPD)>*** results of the 3 varieties experiment demonstrate the generality of the ***,it can be applied effectively in practical maize breeding and determining grain moisture content during maize machine harvesting.

关键词： near-infrared spectroscopy moisture content quantitative analysis small samples optimized maize grain during the filling stage

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Two-Layer Attention Feature Pyramid Network for Small Object Detection

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Computer Modeling in Engineering & Sciences 2024年第10期141卷 713-731页

作者： Sheng xiang Junhao ma Qunli Shang Xianbao Wang Defu Chen College of Information Engineering Zhejiang University of TechnologyHangzhou310023China Binjiang Cyberspace Security Institute of ZJUT Hangzhou310056China

Effective small object detection is crucial in various applications including urban intelligent transportation and pedestrian ***,small objects are difficult to detect accurately because they contain less *** current methods,particularly those based on Feature Pyramid Network(FPN),address this challenge by leveraging multi-scale feature ***,existing FPN-based methods often suffer from inadequate feature fusion due to varying resolutions across different layers,leading to suboptimal small object *** address this problem,we propose the Two-layerAttention Feature Pyramid Network(TA-FPN),featuring two key modules:the Two-layer Attention Module(TAM)and the Small Object Detail Enhancement Module(SODEM).TAM uses the attention module to make the network more focused on the semantic information of the object and fuse it to the lower layer,so that each layer contains similar semantic information,to alleviate the problem of small object information being submerged due to semantic gaps between different *** the same time,SODEM is introduced to strengthen the local features of the object,suppress background noise,enhance the information details of the small object,and fuse the enhanced features to other feature layers to ensure that each layer is rich in small object information,to improve small object detection *** extensive experiments on challenging datasets such as Microsoft Common Objects inContext(MSCOCO)and Pattern Analysis Statistical Modelling and Computational Learning,Visual Object Classes(PASCAL VOC)demonstrate the validity of the *** results show a significant improvement in small object detection accuracy compared to state-of-theart detectors.

关键词： Small object detection two-layer attention module small object detail enhancement module feature pyramid network

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Mechanism of Traditional Chinese Medicine on Intestinal Mucosal Immunity in Chronic Intestinal Diseases

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World Journal of Traditional Chinese Medicine 2017年第2期3卷 20-30页

作者： Lin Lv Feng-Yun Wang xiang-xue ma Ting Chen Hai-Jie Ji Zheng-Yi Chen Ya-Xin Tian Li-Qun Bian Bei-Hua Zhang Xiao-Lan Yin Xu-Dong Tang Gastroenterology Department Xiyuan Hospital of China Academy of Chinese Medical Sciences School of China Academy of Chinese Medical Sciences

Although irritable bowel syndrome(IBS) and inflammatory bowel disease(IBD) are clinically common diseases with unclear pathogenesis, both of them are related to the immune system. With progress in studies on their pathogenesis, the two diseases are currently believed to be associated with the presence of intestinal inflammation and intestinal mucosal immune disorder. In recent years, a new approach for the prevention and treatment of chronic intestinal disease is to protect the complete structure and normal immunity of the intestinal mucosal barrier during the treatment of intestinal diseases. However, traditional Chinese medicine(TCM) may have more advantages in regulating the imbalance of the intestinal immune microenvironment, as various single herbs and compounds of TCM have been investigated from the perspective of immune regulation. The use of TCM is prevalent in China. The effectiveness of these therapies appears to be supported by preliminary evidence and clinical experience, although the mechanisms that underlie these effects will require further research. In this paper, with common chronic bowel diseases including IBS, ulcerative colitis and Crohn's disease as the research objects, the relationship between TCM and immunity was explored from the perspectives of the pathogenesis of intestinal mucosal immune injury, the correlation between TCM syndromes and immune disorders, and TCM immune regulation. Moreover, the problems and limitations of the present study were pointed out, and several suggestions were proposed. The purpose of this article is to explore the potential mechanism of TCM on intestinal mucosal immunity in chronic intestinal diseases.

关键词： Irritable Bowel Syndrome Inflammatory Bowel Disease Immune Disorder TCM Immune Regulation

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The Non-inclusion Diagnosability of Hypercubes Under the PMC Model

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Journal of the Operations Research Society of China 2024年第2期12卷 478-484页

作者： Mei-Jie ma Min Xu Tong-Tong Ding xiang-Jun Li Qiang Zhu School of mathematics and Statistics Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353ShandongChina School of mathematical Sciences Beijing Normal UniversityLaboratory of Mathematics and Complex SystemsMinistry of EducationBeijing 100875China School of Information and mathematics Yangtze UniversityJingzhou 434023HubeiChina School of mathematics and Statistics XiDian UniversityXi'an 710071ShaanXiChina

Diagnosability of a multiprocessor system is an important measure of the reliability of interconnection ***-level diagnosis is a primary strategy to identify the faulty processors in a multiprocessor *** on a sound assumption proposed by Zhu et ***,we proposed a new diagnosability named non-inclusion diagnosability and showed that the non-inclusion diagnosability t_(N)(Q_(n))of the hypercube under the PMC model is *** is,assume that if two vertex sets F_(1) and F_(2) are both consistent with a syndrome and F_(1)C F_(2),then F_(2) is not the faulty set which we are looking for;the faulty set F is 1-step diagnosable if|F|≤2n-2 in Q_(n) under the PMC model.

关键词： Interconnection network Diagnosability Hypercube PMC model

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