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GNSS gyroscopes:determination of angular velocity and acceleration with very high-rate GNSS

Satellite Navigation 2024年第1期5卷 74-90页

作者： Yun Shi Peiliang Xu yuanming shu Xiaolin Meng School of Geomatics Xi’an University of Science and TechnologyXi’an710054People’s Republic of China Disaster Prevention Research Institute Kyoto UniversityUjiKyoto611-0011Japan College of Marine Geosciences Ocean University of ChinaQingdaoPeople’s Republic of China School of Instrument Science and Engineering Southeast UniversityNanjing210096People’s Republic of China

Although global navigation satellite systems(GNSS)have been routinely applied to determine attitudes,there exists no literature on determining angular velocity and/or angular acceleration from *** by the invention of computerized accelerometers of the correspondence author and following the success of accurately recovering translational velocity and acceleration waveforms from very high-rate GNSS precise positioning by Xu and his collaborators in 2021,we propose the concept of GNSS gyroscopes and reconstruct angular velocity and acceleration from very high-rate GNSS attitudes by applying regularization under the criterion of minimum mean squared *** major results from the experiments can be summarized in the following:(i)angular velocity and acceleration waveforms computed by applying the difference methods to high-rate GNSS attitudes are too noisy and can be physically not meaningful and numerically *** same can be said about inertial measurement unit(IMU)attitudes,if IMU gyros are not of very high accuracy;(ii)regularization is successfully applied to reconstruct the high-rate angular velocity and acceleration waveforms from 50 Hz GNSS attitudes and significantly outperforms the difference methods,validating the proposed concept of GNSS *** comparing the angular velocity and acceleration results by using the difference methods and regularization,we find that the peak values of angular velocity and acceleration by regularization are much smaller by a maximum factor of 1.57 in the angular velocity to a maximum factor of 8662.53 times in the angular acceleration in the case of high-rate GNSS,and by a maximum factor of 1.26 in the angular velocity to a maximum factor of 2819.85 times in the angular acceleration in the case of IMU,respectively;and(iii)the IMU attitudes apparently lead to better regularized angular velocity and acceleration waveforms than the high-rate GNSS attitudes,which can well be explained by the fact that the

关键词： Angular velocity Angular acceleration High-rate GNSS GNSS attitudes GNSS gyroscopes Regularization

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Host plant traits play a crucial role in shaping the composition of epiphytic microbiota in the arid desert,Northwest China

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Journal of Arid Land 2024年第5期16卷 699-724页

作者： ZHANG Jun ZHANG yuanming ZHANG Qi State Key Laboratory of Desert and Oasis Ecology Key Laboratory of Ecological Safety and Sustainable Development in Arid LandsXinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China Xinjiang Key Laboratory of Biodiversity Conservation and Application in Arid Lands Xinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China Xinjiang Field Scientific Observation Research Station of Tianshan Wild Fruit Forest Ecosystem Yili Botanical GardenXinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China College of Life Sciences Shihezi UniversityShihezi 832003China

Phyllosphere microorganisms are a crucial component of environmental microorganisms,highly influenced by host characteristics,and play a significant role in plant health and ***,the impact of host characteristics on shaping phyllosphere microbial communities of plants with different life forms remains *** high-throughput sequencing technology,this study analyzed the diversity and community composition of phyllosphere epiphytic microorganisms(e.g.,bacteria and fungi)of various plant life forms in the hinterland of the Gurbantunggut Desert,Northwest *** annotation of prokaryotic taxa(FAPROTAX)and fungi function guild(FUNGuild)were employed to assess the ecological functions of microorganisms and to investigate the role of stochastic and deterministic processes in shaping phyllosphere microbial *** showed a diverse array of phyllosphere epiphytic microorganisms in the desert plants,with Proteobacteria,Cyanobacteria,and Actinobacteriota dominating bacterial community,while Ascomycota and Basidiomycota were prevalent in fungal *** across different plant life forms highlighted distinct microbial communities,indicating strong filtering effects by plant *** prediction identified intracellular parasites(accounting for 27.44%of bacterial community abundance),chemoheterotrophy(10.12%),and phototrophy(17.41%)as the main functions of epiphytic bacteria on leaves of different life form *** prediction indicated that phyllosphere epiphytic fungi primarily served as Saprotrophs(81.77%),Pathotrophs(17.41%),and Symbiotrophs(0.82%).Co-occurrence network analysis demonstrated a predominance of positive correlations among different microbial ***-Crick dissimilarity index analysis revealed that deterministic processes predominantly influenced phyllosphere bacterial and fungal community *** partitioning analysis and random forest modeling suggested that pla

关键词： phyllosphere epiphytic bacteria phyllosphere epiphytic fungi community structure community diversity functional diversity plant life form plant functional traits

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Resonant Beam Communications:A New Design Paradigm and Challenges

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Journal of Communications and Information Networks 2024年第1期9卷 80-87页

作者： yuanming Tian Dongxu Li Chuan Huang Qingwen Liu Shengli Zhou Future Network of Intelligence Institute and School of Science and Engineering the Chinese University of Hong KongShenzhen 518172China School of Science and Engineering and the Future Network of Intelligence Institute the Chinese University of Hong KongShenzhen 518172China College of Electronics and Information Engineering Tongji UniversityShanghai 201804China Department of Electrical and Computer Engineering University of ConnecticutStorrsCT 06250USA

Resonant beam communications (RBCom), which adopts oscillating photons between two separate retroreflectors for information transmission, exhibits potential advantages over other types of wireless optical communications (WOC). However, echo interference generated by the modulated beam reflected from the receiver affects the transmission of the desired information. To tackle this challenge, a synchronization-based point-to-point RBCom system is proposed to eliminate the echo interference, and the design for the transmitter and receiver is discussed. Subsequently,the performance of the proposed RBCom is evaluated and compared with that of visible light communications(VLC)and free space optical communications (FOC). Finally, future research directions are outlined and several implementation challenges of RBCom systems are highlighted.

关键词： resonant beam communications(RBCom) wireless optical communications(WOC) echo interference elimination mobility multiple access

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Effect of mechanical stresses on degradation behavior of high-purity magnesium in bone environments

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Journal of Materials Science & Technology 2024年第4期171卷 252-261页

作者： Yan Yao Jie Xia Lizhen Wang yuanming Gao Xili Ding Chao Wang Yubo Fan Key Laboratory of Biomechanics and Mechanobiology(Beihang University) Ministry of EducationBeijing Advanced Innovation Center for Biomedical EngineeringSchool of Biological Science and Medical EngineeringSchool of Engineering MedicineBeihang UniversityBeijing 100083China

High-purity(HP)magnesium(Mg)has emerged as a promising biomaterial for supporting functional bone *** previous study found that mechanical stresses and the surrounding fibrotic tissue(subcuta-neous)both play crucial roles in the degradation of HP ***,due to challenges in the degradation and regeneration process in vivo,it remains unclear how stress affects HP Mg degradation in bone en-vironments,limiting its further *** this study,novel loading devices were designed and the effects of tensile and compressive stresses on HP Mg degradation in vivo and in vitro bone environments were quantitatively *** addition,bone osteointegration around HP Mg was explored *** stress increases the degradation rate of HP Mg in vivo and in *** Mg degradation in vivo is more sensitive to stress factors than in vitro,but the sensitivity decreases with corrosion *** volume loss rate of HP Mg is multilinear with the applied stress and degradation *** volume of bone tissue surrounding HP Mg is larger in the no-stress group compared to the stressed groups,which is more pronounced with increasing implantation *** results provide valuable insights for optimiz-ing the design of HP Mg-based implants considering load *** will help to achieve a balance between the degradation rate of the implant and the regeneration rate of the surrounding bone.

关键词： High-purity magnesium Quantitative stresses Degradation Bone environments In vivo and in vitro

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Cell metabolism pathways involved in the pathophysiological changes of diabetic peripheral neuropathy

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Neural Regeneration Research 2024年第3期19卷 598-605页

作者： Yaowei Lv Xiangyun Yao Xiao Li yuanming Ouyang Cunyi Fan Yun Qian Department of Orthopedics Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration ShanghaiChina Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine ShanghaiChina College of Fisheries and Life Science Shanghai Ocean UniversityShanghaiChina

Diabetic peripheral neuropathy is a common complication of diabetes *** the pathophysiological metabolic mechanism impels the generation of ideal ***,existing limited treatments for diabetic peripheral neuropathy expose the urgent need for cell metabolism *** the lack of comprehensive understanding of energy metabolism changes and related signaling pathways in diabetic peripheral neuropathy,it is essential to explore energy changes and metabolic changes in diabetic peripheral neuropathy to develop suitable treatment *** review summarizes the pathophysiological mechanism of diabetic peripheral neuropathy from the perspective of cellular metabolism and the specific interventions for different metabolic pathways to develop effective treatment *** metabolic mechanisms(e.g.,polyol,hexosamine,protein kinase C pathway)are associated with diabetic peripheral neuropathy,and researchers are looking for more effective treatments through these pathways.

关键词： cell metabolism diabetic peripheral neuropathy peripheral nerve injury protein kinase C pathway reactive oxygen species.

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Multi-objective structural optimization and degradation model of magnesium alloy ureteral stent

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Medicine in Novel Technology and Devices 2024年第2期22卷 19-28页

作者： Lin Zhu Qiao Li yuanming Gao Lizhen Wang Yubo Fan Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Biological Science and Medical EngineeringBeihang UniversityBeijing100083China School of Engineering Medicine Beihang UniversityBeijing100191China

Background:Mg alloys have attractive properties,including biocompatibility,biodegradability,and ideal mechanical ***,Mg alloys are regarded as one of the promising candidates for manufacturing ureteral *** study proposed a multi-objective optimization method based on the Kriging surrogate model,NSGA-III,and finite element analysis to improve the degradation performance of Mg alloy ureteral ***:The finite element model for the degradation of Mg alloy ureteral stents has been established to compare the degradation performance of the stents under different *** hypercube sampling was adopted to generate train sample points in the design ***,the Kriging surrogate model was constructed between strut parameters and stent degradation *** NSGA-III was utilized to determine the optimal solution in the global design ***:The optimized stent achieved 5.52degradation uniformity(M),10degradation time(DT),and 4work time(FT).The errors between the Kriging surrogate model and the finite element calculation results were less than 6%.Conclusion:The optimized stent achieved better degradation *** degradation behavior of stents was dependent on the design *** multi-objective optimization method based on the Kriging surrogate model and finite element analysis was effective in stent design optimization problems.

关键词： Mg alloys ureteral stent Kriging surrogate model NSGA-III Multi-objective optimization Degradation model

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RNF6 promotes chronic myelogenous leukemia cell proliferation and migration by stabilizing vimentin via multiple atypical ubiquitinations

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Genes & Diseases 2024年第1期11卷 87-90页

作者： Hongxia Zhang Yueya Zhong yuanming He Yujia Xu Ying Ren Haixia Zhuang Tong Sun Zhigang Zhu Xinliang Mao Institute of Clinical Pharmacology Science and Technology Innovation CenterGuangzhou University of Chinese MedicineGuangzhouGuangdong 510403China Guangdong Provincial Key Laboratory of Protein Modification and Degradation School of Basic Medical SciencesGuangzhou Medical UniversityGuangzhouGuangdong 511436China Department of Pharmacology College of Pharmaceutical SciencesSoochow UniversitySuzhouJiangsu 215123China Division of Hematology&Oncology Department of GeriatricsGuangzhou First People's HospitalCollege of MedicineSouth China University of TechnologyGuangzhouGuangdong 510180China

Chronic myelogenous leukemia(CML)is a malignancy from bone marrow myeloid stem cells mainly driven by the fusion gene *** addition to BCR-ABL,other genes including RNF6 are also dysregulated in CML cells.1 RNF6,a ubiquitin ligase of the RING family,promotes various cancer cell proliferation,chemoresistance,and tumor growth in vivo by targeting various proteins for ubiquitination and degradation,including SHP1,TLE3,FOXA1,and MAD1.^(2) However,its specific mechanism in CML is not known.

关键词： ubiquitin myelogenous leukemia

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Hemin blocks TIGIT/PVR interaction and induces ferroptosis to elicit synergistic effects of cancer immunotherapy

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Science China(Life Sciences) 2024年第5期67卷 996-1009页

作者： Xiaowen Zhou Yang Li Xiangrui Zhang Beibei Li Shengzhe Jin Menghan Wu Xiuman Zhou Qingyu Dong Jiangfeng Du Wenjie Zhai Yahong Wu Lu Qiu Guodong Li yuanming Qi Wenshan Zhao Yanfeng Gao School of Life Sciences Zhengzhou UniversityZhengzhou 450001China School of Pharmaceutical Sciences(Shenzhen) Shenzhen Campus of Sun Yat-sen UniversityShenzhen 518107China

The immune checkpoint TIGIT/PVR blockade exhibits significant antitumor effects through activation of NK and CD8^(+)T cell-mediated *** checkpoint blockade(ICB)could induce tumor ferroptosis through IFN-γreleased by immune cells,indicating the synergetic effects of ICB with ferroptosis in inhibiting tumor ***,the development of TIGIT/PVR inhibitors with ferroptosis-inducing effects has not been explored *** this study,the small molecule Hemin that could bind withTIGIT to block TIGIT/PVR interaction was screened by virtual molecular docking and cell-based blocking *** could effectively restore the IL-2 secretion from Jurkat-hTIGIT *** reinvigorated the function of CD8^(+)T cells to secrete IFN-γand the elevated IFN-γcould synergize with Hemin to induce ferroptosis in tumor *** inhibited tumor growth by boosting CD8^(+)T cell immune response and inducing ferroptosis in CT26 tumor *** importantly,Hemin in combination with PD-1/PD-L1 blockade exhibited more effective antitumor efficacy in anti-PD-1 resistant B16 tumor *** summary,our finding indicated that Hemin blocked TIGIT/PVR interaction and induced tumor cell ferroptosis,which provided a new therapeutic strategy to combine immunotherapy and ferroptosis for cancer treatment.

关键词： cancer immunotherapy TIGIT/PVR small molecule Hemin ferroptosis

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民族互嵌式社区治理共同体:构建逻辑与实践路径

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湖北民族大学学报（哲学社会科学版） 2024年第3期42卷 93-102页

作者：谭元敏陈博广西民族大学马克思主义学院

民族互嵌式社区作为社会治理共同体建设的重要场域,兼有铸牢中华民族共同体意识和推进基层治理现代化的双重内涵。以治理共同体为思考半径,分析民族互嵌式社区的构建逻辑,发现其遵循“场域互动—情感共振—共同期盼”三方联动的立体化... 详细信息

民族互嵌式社区作为社会治理共同体建设的重要场域,兼有铸牢中华民族共同体意识和推进基层治理现代化的双重内涵。以治理共同体为思考半径,分析民族互嵌式社区的构建逻辑,发现其遵循“场域互动—情感共振—共同期盼”三方联动的立体化逻辑。由此递进至社区治理共同体的实践路径,分别是:在治理主体层面,以动力嬗变促成多元主体良性互动;在治理模式创新层面,德法兼治推动治理结构优化;在长效机制保障层面,动态调适各民族共同领会的治理机制。籍此推动人人有责、人人尽责、人人享有的社区治理共同体建设,在基层铸牢中华民族共同体意识的思想根基。

关键词：社区治理共同体民族互嵌基层治理铸牢中华民族共同体意识

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Side-Chain Type Ferrocene Macrocycles

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Precision Chemistry 2024年第4期2卷 143-150页

作者： Bin Lan Jindong Xu Lingyun Zhu Xinyu Chen Hideya Kono Peihan Wang Xin Zuo Jianfeng Yan Akiko Yagi Yongshen Zheng Songhua Chen Yaofeng Yuan Kenichiro Itami yuanming Li Key Laboratory of Molecule Synthesis and Function Discovery(Fujian Province University) College of ChemistryFuzhou UniversityFuzhou 350108China Institute of Transformative Bio-Molecules(WPI-ITbM) Nagoya UniversityNagoya 464-8602Japan School of Materials Science and Engineering National Institute for Advanced MaterialsNankai UniversityTianjin 300350China Institute of Transformative Bio-Molecules(WPIITbM) Nagoya UniversityNagoya 464-8602Japan College of Chemistry and Material Science Longyan UniversityLongyan 364012China

A class of side-chain type ferrocene macrocycles with a radially conjugated system is introduced in this *** stereo configurations of these ferrocene rings were determined through single-crystal X-ray diffraction ***,in the solid state,the ferrocene rings exhibit a distinctive herringbone stacking pattern imposed by a ferrocene-to-ring host−guest *** UV−vis absorption spectroscopy,electrochemical measurements,and theoretical calculations,valuable insights into the electronic properties of these rings were *** addition,the single crystal of macrocycle A_(2)B demonstrates a second-order nonlinear optical *** a class of organometallic nanorings,this work holds great potential for further exploration in the fields of organometallic chemistry,molecular electronics,and host−guest chemistry.

关键词： Ferrocene Conjugated Macrocycles Organometallic Macrocycles Second-Order Nonlinear Optical Nanoring

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