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| 1 | Flight strategy optimization for high-altitude long-endurance solar-powered aircraft based on Gauss pseudo-spectral method显示文摘Solar-powered aircraft have attracted great attention owing to their potential for longendurance flight and wide application prospects.Due to the particularity of energy system,flight strategy optimization is a significant way to enhance the flight performance for solar-powered aircraft.In this study,a flight strategy optimization model for high-altitude long-endurance solar-powered aircraft was proposed.This model consists of three-dimensional kinematic model,aerodynamic model,energy collection model,energy store model and energy loss model.To solve the nonlinear optimal control problem with process constraints and terminal constraints,Gauss pseudo-spectral method was employed to discretize the state equations and constraint equations.Then a typical mission flying from given initial point to given final point within a time interval was considered.Results indicate that proper changes of the attitude angle contribute to increasing the energy gained by photovoltaic cells.Utilization of gravitational potential energy can partly take the role of battery pack.Integrating these two measures,the optimized flight strategy can improve the final state of charge compared with current constant-altitude constant-velocity strategy.The optimized strategy brings more profits on condition of lower sunlight intensity and shorter daytime. | Shaoqi WANG Dongli MA Muqing YANG Liang ZHANG Guanxiong LI | 2019 | Chinese Journal of Aeronautics2019，32，10： | 15 |
| 2 | Orderly Porous Covalent Organic Frameworks-based Materials:Superior Adsorbents for Pollutants Removal from Aqueous Solutions显示文摘Covalent organic frameworks(COFs)are a new type of crystalline porous polymers known for chemical stability,excellent structural regularity,robust framework,and inherent porosity,making them promising materials for capturing various types of pollutants from aqueous solutions.This review thoroughly presents the recent progress and advances of COFs and COF-based materials as superior adsorbents for the efficient removal of toxic heavy metal ions,radionuclides,and organic pollutants.Information about the interaction mechanisms between various pollutants and COF-based materials are summarized from the macroscopic and microscopic standpoints,including batch experiments,theoretical calculations,and advanced spectroscopy analysis.The adsorption properties of various COF-based materials are assessed and compared with other widely used adsorbents.Several commonly used strategies to enhance COF-based materials’adsorption performance and the relationship between structural property and sorption ability are also discussed.Finally,a summary and perspective on the opportunities and challenges of COFs and COF-based materials are proposed to provide some inspiring information on designing and fabricating COFs and COF-based materials for environmental pollution management. | Xiaolu Liu Hongwei Pang Xuewei Liu Qian Li Ning Zhang Liang Mao Muqing Qiu Baowei Hu Hui Yang Xiangke Wang | 2021 | The Innovation2021，2，1： | 12 |
| 3 | Challenges of organic pollutant photocatalysis by biochar‑based catalysts显示文摘With the fast development of industrialization and urbanization,large amounts of organic pollutants are released into the natural environment.The efficient elimination of organic pollutants is thereby crucial for environmental pollution treatment and human health.In the last decades,photocatalytic degradation of persistent organic pollutants has attracted multidisciplinary interest because of its simple operation on a large scale.However,the whole processes for the photocatalytic degradation of organic pollutants are still unclear.In this perspective,the contribution of reactive species,the contribution of photocatalysts,the analysis of intermediate products,the charge transfer and fast carrier recombination are discussed on biochar-based photocatalysts. | Muqing Qiu Baowei Hu Zhongshan Chen Hui Yang Li Zhuang Xiangke Wang | 2021 | Biochar2021，3，2： | 2 |
| 4 | Distributed multi-robot sweep coverage for a region with unknown workload distribution显示文摘This paper considers the scenario where multiple robots collaboratively cover a region in which the exact distribution of workload is unknown prior to the operation.The workload distribution is not uniform in the region,meaning that the time required to cover a unit area varies at different locations of the region.In our approach,we divide the target region into multiple horizontal stripes,and the robots sweep the current stripe while partitioning the next stripe concurrently.We propose a distributed workload partition algorithm and prove that the operation time on each stripe converges to the minimum under the discrete-time update law.We conduct comprehensive simulation studies and compare our method with the existing methods to verify the theoretical results and the advantage of the proposed method.Flight experiments on mini drones are also conducted to demonstrate the practicality of the proposed algorithm. | Muqing Cao Kun Cao Xiuxian Li Shenghai Yuan Yang Lyu Thien-Minh Nguyen Lihua Xie | 2021 | Autonomous Intelligent Systems2021，1，1： | 1 |
| 5 | The Phosphorylation State of an Aurora-Like Kinase Marks the Length of Growing Flagella in Chlamydomonas显示文摘 | Minna Luo Muqing Cao Yinan Kan Guihua Li William Snell Junmin Pan | 2011 | Current Biology2011，，7： | 1 |
| 6 | A combined virtual impactor and field-effect transistor microsystem for particulate matter separation and detection显示文摘Ambient suspended particulate matter(PM)(primarily with particle diameter 2.5m or less,i.e.,PM2.5)can adversely affect ecosystems and human health.Currently,optical particle sensors based on light scattering dominate the portable PM sensing market.However,the light scattering method has poor adaptability to different-sized PM and adverse environmental conditions.Here,we design and develop a portable PM sensing microsystem that consists of a micromachined virtual impactor(VI)for particle separation,a thermophoretic deposition chip for particle collection,and an extended-gate field-effect transistor(FET)for particle analysis.This system can realize on-site separation,collection,and analysis of aerosol particles without being influenced by environmental factors.In this study,the design of the VI is thoroughly analyzed by numerical simulation,and mixtures of different-sized silicon dioxide(SiO2)particles are used in an experimental verification of the performance of the VI and FET.Considering the low cost and compact design of the whole system,the proposed PM analysis microsystem has potential for PM detection under a wide range of conditions,such as heavily polluted industrial environments and for point-of-need outdoor and indoor air quality monitoring. | Yanna Li Muqing Fu Wei Pang Ye Chang Xuexin Duan | 2021 | Nanotechnology and Precision Engineering2021，4，1： | 1 |
| 7 | Regulating the radical intermediates by conjugated units in covalent organic frameworks for optimized lithium ion storage显示文摘Organic active units often transform into radical intermediates during the redox processes but exhibit poor cycling stability due to the uncontrollable redox of the radicals. Herein, we report a facile and efficient strategy to modulate the molecular orbital energies, charge transport capacities, and spin electron densities of the active units in covalent organic frameworks(COFs) via regulating the conjugated unit size to optimize the redox activity and stability of the organic radicals. COFs based on different imide conjugated units exhibit tunable discharge voltages, rate performance and cycling stabilities. Detailed characterizations and theoretical calculation reveal that imide radicals are the important active intermediates during the redox processes of these COFs. Specifically, increasing the size of the imide conjugated units could effectively delocalize the radical electrons and improve the stability of the COFs electrodes. This study offers a very effective strategy to modulate the redox chemistry of organic materials for electrochemical energy storage. | Shuai Gu Xiaoxia Ma Jingjing Chen Rui Hao Zhiqiang Wang Ning Qin Wei Zheng Qingmeng Gan Wen Luo Muqing Li Zhiqiang Li Kemeng Liao Hao Guo Guiyu Liu Kaili Zhang Zhouguang Lu | 2022 | Journal of Energy Chemistry2022，31，6： | 1 |
| 8 | Prevention and treatment of iatrogenic premature ovarian insufficiency:r interpretation of the first Chinese guideline on ovarian tissue cryopreservation and transplantation显示文摘In recent years,with the rapid development of medical research,cancer diagnosis and treatment technology have significantly improved young cancer patient’s survival rate.Anticancer therapy such as chemotherapy,radiotherapy,or hematopoietic stem cell transplantation can lead to premature ovarian insufficiency.The endocrine and reproductive function of the ovary is critical to women’s physical and mental health.Ovarian tissue cryopreservation and transplantation can protect not only female fertility but also preserve ovarian endocrine function.This paper interprets the guidelines for ovarian tissue cryopreservation and transplantation issued by the Chinese Society of Gynecological Endocrinology affiliated to the International Society of Gynecological Endocrinology.The purpose of this guideline’s interpretation is to promote more medical workers to understand the technology of ovarian tissue cryopreservation and transplantation,which can provide patients with more choices of fertility protection methods and improve their quality of life. | Xiangyan Ruan Jiaojiao Cheng Juan Du Fengyu Jin Yanglu Li Muqing Gu Alfred O.Mueck | 2021 | Global Health Journal2021，5，2： | 1 |
| 9 | Manganese toxicity-induced chlorosis in sugarcane seedlings involves inhibition of chlorophyll biosynthesis显示文摘Manganese(Mn)toxicity-induced leaf chlorosis limits crop production in acidic soils,but its underlying mechanisms remain unknown.The effects of excessive Mn on chlorophyll(Chl)biosynthesis in sugarcane(Saccharum officinarum L.)leaves were investigated.Under Mn treatment,Chl concentration decreased with Mn accumulation and chlorosis appeared in expanding leaves.Before that,levels of the initial Chl precursor 5-aminolevulinic acid(ALA)and its downstream intermediates decreased,whereas magnesium-protoporphyrin IX monomethyl ester(MgPME)accumulated.Overaccumulation of Mn in leaves downregulated the ALA biosynthetic gene GluTR(encoding glutamyl-tRNA reductase)and MgPME conversion gene MgPMEC(encoding MgPME cyclase),upregulated the ALA biosynthesis inhibitor FLU(encoding FLUORESCENT),but had no significant effect on the expression of other Chl biosynthetic genes.The above Mn-induced changes of Chl precursors and expression of corresponding genes commenced before the Chl decline and leaf chlorosis,and were reversed by ALA supplementation.Thus,excessive Mn-induced chlorosis in sugarcane is mediated by a Chl-biosynthesis disorder resulting from the inhibition of ALA synthesis and MgPME conversion. | Shu Yang Guizhi Ling Qiuyue Li Ke Yi Xinlian Tang Muqing Zhang Xiaofeng Li | 2022 | The Crop Journal2022，10，6： | 0 |
| 10 | Sequence analysis of Erianthus arundinaceus chromosome 1 isolated by flow sorting after genomic in situ hybridization in suspension显示文摘Erianthus arundinaceus is a wild relative of sugarcane(Saccharum officinarum L.)with many desirable agronomic traits for sugarcane genetic improvement.However,limited knowledge of the complex genome of hexaploid E.arundinaceus has impeded the development of required molecular tools.Dissecting complex genomes into single chromosomes can simplify analyses.The flow-cytometric sorting of a single chromosome of E.arundinaceus in a Saccharum-Erianthus introgression line is reported.A novel approach called genomic in situ hybridization in suspension was used to discriminate the alien chromosome from sugarcane chromosomes at the same size.A total of 218,000 E.arundinaceus chromosome 1(EaC1)were sorted to>97%purity and amplified DNA was sequenced using Illumina and Pac Bio technologies.The resulting assembly had a 70.93 Mb contig sequence with an N50 of 19.62 kb.A total of 56.69 Mb repeat sequences were predicted,accounting for 79.1%of the chromosome and 2646 genes having a total length of 1.84 Mb that represented 2.59%of the chromosome.Of these genes,1877(70.9%)genes were functionally annotated.The phylogenetic relationship of E.arundinaceus with other species using the chromosome1 sequence revealed that E.arundinaceus was distantly related to Oryza sativa and Zea mays,followed by Sorghum bicolor,and was closely related to S.spontaneum and Saccharum spp.hybrids.This study provides the first insights into the characteristics of EaC1,and the results will provide tools to support molecular improvement and alien introgression breeding of sugarcane. | Shan Yang Petr Cápal Jaroslav Dolezel Xueting Li Wang Qian Zhiqiang Wang Kai Zeng Peiting Li Hongkai Zhou Rui Xia Muqing Zhang Zuhu Deng | 2022 | The Crop Journal2022，10，6： | 0 |
| 11 | Synchronous defect passivation of all-inorganic perovskite solar cells enabled by fullerene interlayer显示文摘All-inorganic CsPbI_(3-x)Br_(x)perovskite solar cells(PSCs)are advantageous in terms of high thermal stability,while its efficiency lags behind those of organic-inorganic hybrid perovskite counterparts.Defect passivations have been extensively applied for enhancing efficiency of all-inorganic PSCs,which are mainly based on univocal defect passivation of perovskite layer.Herein,we incorporated a bis-dimethylamino-functionalized fullerene derivative(abbreviated as PCBDMAM)as an interlayer between ZnO electron transport layer(ETL)and all-inorganic CsPbI_(2.25)Br_(0.75)perovskite layer,accomplishing synchronous defect passivations of both layers and consequently dramatic enhancements of efficiency and thermal stability of PSC devices.Upon spin-coating PCBDMAM onto ZnO ETL,the surface defects of ZnO especially oxygen vacancies can be effectively passivated due to the formation of Zn−N ionic bonds.In addition,PCBDMAM incorporation affords effective passivation of Pb_(I)and I_(Pb)antisite defects within the atop perovskite layer as well via coordination bonding with Pb^(2+).As a result,the regular-structure planar CsPbI_(2.25)Br_(0.75)PSC device delivers a champion power conversion efficiency(PCE)of 17.04%,which surpasses that of the control device(15.44%).Moreover,the PCBDMAM-incorporated PSC device maintains~80%of its initial PCE after 600 h heating at 85°C hot plate in N2 atmosphere,whereas PCE of the control device degrades rapidly to~62%after 460 h heating under identical conditions.Hence,PCBDMAM incorporation benefited dramatic improvement of the thermal stability of PSC device. | Yanbo Shang Pu Wang Lingbo Jia Xingcheng Li Weitao Lian Peisen Qian Muqing Chen Tao Chen Yalin Lu Shangfeng Yang | 2023 | Nano Research Energy2023，2，3： | 0 |
| 12 | Mechanochemical transformation of fluorescent hydrogel based on dynamic lanthanide-terpyridine coordination显示文摘As a burgeoning research field, ultrasound-responsive materials have attracted intense interest in healthcare research. However, the basic mechanism of sonochemical effect in the quasi-solid state is far from being well understood than those in the solution. Herein, we showcase mechanochemical transformations of europium(Ⅲ) complexes in a supramolecular hydrogel matrix. With the combination of labile terpyridine-europium complexes(TPY-Eu^(3+)) as mechanochromic moieties and an ultrasound-responsive fluorogen(URF) as a molecular tweezer, the hydrogel produces a notable fluorescence change in response to ultrasound. The mechanochemical transformation was elucidated by molecular dynamics(MD) simulations, and fully probed and evidenced by electrochemical experiments, X-ray photoelectron spectroscopy(XPS), and attenuated total reflectance-Fourier transform infrared(ATR-FTIR) spectroscopy. | Guangqiang Yin Jianxiang Huang Depeng Liu Rui Li Shuxin Wei Muqing Si Feng Ni Yinfei Zheng Qiu Yang Ruhong Zhou Xiaoxia Le Wei Lu Tao Chen | 2023 | Chinese Chemical Letters2023，34，3： | 0 |
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