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Chinese Journal of Polymer Science 2024年第10期42卷 1545-1556,I0013页

作者： Miao Xie Xiao-rong Wang Zhan-hua Wang He-Sheng Xia State Key Laboratory of Polymer Materials Engineering Polymer Research InstituteSichuan UniversityChengdu610065China School of Petrochemical Engineering Liaoning Petrochemical UniversityFushun113001China

Covalent adaptive networks(CANs)are capable of undergoing segment rearrangement after being heated,which endows the materials with excellent self-healing and reprocessing performance,providing an efficient solution to the environment pollution caused by the plastic *** main challenge remains in developing CANs with both excellent reprocessing performance and creep-resistance *** this study,a series of CANs containing dynamic covalent benzopyrazole-urea bonds were developed based on the addition reaction between benzopyrazole and isocyanate *** calculation confirmed that relatively low dissociation energy is obtained through undergoing a five-member ring transition state,confirming excellent dynamic property of the benzopyrazole-urea *** verified by the FTIR results,this nice dynamic property can be well maintained after incorporating the benzopyrazole-urea bonds into polymer *** self-healing and reprocessing performance is observed by the 3-ABP/PDMS elastomers owing to the dynamic benzopyrazole-urea *** separation induced by the aggregation of the hard segments locked the benzopyrazole-urea bonds,which also makes the elastomers display excellent creep-resistance *** hard phase locking strategy provides an efficient approach to design CANs materials with both excellent reprocessing and creep-resistance performance.

关键词： Covalent adaptive networks Self-healing polymer Dynamic covalent bond

Intelligent diagnosis of retinal vein occlusion based on color fundus photographs

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International Journal of Ophthalmology(English edition) 2024年第1期17卷 1-6页

作者： Yu-Ke Ji rong-rong hua Sha Liu Cui-Juan Xie Shao-Chong Zhang Wei-hua Yang Eye Hospital Nanjing Medical UniversityNanjing 210000Jiangsu ProvinceChina College of Electronic Information Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210000Jiangsu ProvinceChina Shenzhen Eye Institute Shenzhen Eye HospitalJinan UniversityShenzhen 518000Guangdong ProvinceChina

AIM:To develop an artificial intelligence(AI)diagnosis model based on deep learning(DL)algorithm to diagnose different types of retinal vein occlusion(RVO)by recognizing color fundus photographs(CFPs).METHODS:Totally 914 CFPs of healthy people and patients with RVO were collected as experimental data sets,and used to train,verify and test the diagnostic model of *** the images were divided into four categories[normal,central retinal vein occlusion(CRVO),branch retinal vein occlusion(BRVO),and macular retinal vein occlusion(MRVO)]by three fundus disease *** Transformer was used to build the RVO diagnosis model,and different types of RVO diagnosis experiments were *** model’s performance was compared to that of the ***:The accuracy of the model in the diagnosis of normal,CRVO,BRVO,and MRVO reached 1.000,0.978,0.957,and 0.978;the specificity reached 1.000,0.986,0.982,and 0.976;the sensitivity reached 1.000,0.955,0.917,and 1.000;the F1-Sore reached 1.000,0.9550.943,and 0.887 *** addition,the area under curve of normal,CRVO,BRVO,and MRVO diagnosed by the diagnostic model were 1.000,0.900,0.959 and 0.970,*** diagnostic results were highly consistent with those of fundus disease experts,and the diagnostic performance was ***:The diagnostic model developed in this study can well diagnose different types of RVO,effectively relieve the work pressure of clinicians,and provide help for the follow-up clinical diagnosis and treatment of RVO patients.

关键词： deep learning artificial intelligence Swin Transformer diagnostic model retinal vein occlusion color fundus photographs

Impact of minimally invasive surgery on immune function and stress response in gastric cancer patients

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World Journal of Gastrointestinal Surgery 2024年第8期16卷 2484-2493页

作者： rong-hua Zhu Peng-Cheng Li Jie Zhang hua-hua Song Department of General Surgery Chongming Hospital Affiliated to Shanghai University of Medicine and Health SciencesShanghai 202150China Department of Respiratory Medicine Chongming Hospital Affiliated to Shanghai University of Medicine and Health ScienceShanghai 202150China

BACKGROUND Gastric cancer remains a leading cause of cancer-related mortality *** open surgery for gastric cancer is often associated with significant morbidity and prolonged *** To evaluate the effectiveness of laparoscopic minimally invasive surgery as an alternative to traditional open surgery for gastric cancer,focusing on its potential to reduce trauma,accelerate recovery,and achieve comparable oncological *** This study retrospectively analyzed 203 patients with gastric cancer who underwent surgery at the Shanghai Health Medical College Affiliated Chongming Hospital from January 2020 to December *** patients were divided into two groups:Minimally invasive surgery group(n=102),who underwent laparoscopic gastrectomy,and open surgery group(n=101),who underwent traditional open *** compared surgical indicators(surgical incision size,intraop-erative blood loss,surgical duration,and number of lymph nodes dissected),recovery parameters(time to first flatus,time to start eating,time to ambulation,and length of hospital stay),immune function(levels of IgA,IgG,and IgM),intestinal barrier function(levels of D-lactic acid and diamine oxidase),and stress response(levels of C-reactive protein,interleukin-6,and procalcitonin).RESULTS The minimally invasive surgery group demonstrated significantly better outcomes in terms of surgical indicators,including smaller incisions,less blood loss,shorter surgery time,and more lymph nodes dissected(P<0.05 for all).Recovery was also faster in the minimally invasive surgery group,with earlier return of bowel function,earlier initiation of diet,quicker mobilization,and shorter hospital stays(P<0.05 for all).Furthermore,patients in the minimally invasive surgery group had better preserved immune function,superior intestinal barrier function,and a less pronounced stress response postoperatively(P<0.05 for all).CONCLUSION Laparoscopic minimally invasive surgery for gastric cancer not on

关键词： Gastric cancer Laparoscopic surgery Minimally invasive surgery Immune function Intestinal barrier Stress response

Salinity effect-induced ENSO amplitude modulation in association with the interdecadal Pacific Oscillation

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Journal of Oceanology and Limnology 2024年第4期42卷 1019-1036页

作者： Hai ZHI Xiaokun WANG rong-hua ZHANG Pengfei LIN Jifeng QI College of Atmospheric Sciences Nanjing University of Information Science and TechnologyNanjing 210044China School of Marine Sciences Nanjing University of Information Science and TechnologyNanjing 210044China Laoshan Laboratory Qingdao 266237China State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG) Institute of Atmospheric Physics(IAP)Chinese Academy of SciencesBeijing 100029China Key Laboratory of Ocean Circulation and Waves Institute of Oceanologyand Center for Ocean Mega-ScienceChinese Academy of SciencesQingdao 266071China

A 110-year ensemble simulation of an ocean general circulation model(OGCM)was analyzed to identify the modulation of salinity interdecadal variability on El Niño-Southern Oscillation(ENSO)amplitude in the tropical Pacific during *** simulating results show that sea surface salinity(SSS)variation in the region exhibits notable and coherent interdecadal variability signal,which is closely associated with the Interdecadal Pacific Oscillation(IPO).As salinity increases or reduces,the SSS modulations on ENSO amplitude during its warm/cold events vary asymmetrically with positive/negative IPO ***,salinity interdecadal variability can enhance or reduce ENSO-related conditions in upper-ocean stratification,contributing noticeably to ENSO *** anomalies associated with the mixed layer depth and barrier layer thickness can modulate ENSO amplitude during positive and negative IPO phases,resulting in the asymmetry of sea surface temperature(SST)anomaly in the tropical *** positive IPO phases,SSS interdecadal variability contributes positively to El Niño amplitude but negatively to La Niña amplitude by enhancing or reducing SSS interannual variability,and vice versa during negative IPO ***,the results indicate that the modulation of the ENSO amplitude by the SSS interdecadal variability is 15%-28%during negative IPO phases and 30%-20%during positive IPO phases,***,the SSS interdecadal variability associated with IPO and its modulation on ENSO amplitude in the tropical Pacific are among factors essentially contributing ENSO diversity.

关键词： El Niño-Southern Oscillation(ENSO)amplitude Interdecadal Pacific Oscillation(IPO) ocean salinity variability tropical Pacific upper-ocean stratification

Clinical characteristics and treatment of splenic infarction in children with systemic lupus erythematosus

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World Journal of Pediatrics 2024年第5期20卷 525-531页

作者： Yan Li Yu-rong Piao Tong-Xin Han hua-Wei Mao Department of Immunology Ministry of Education Key Laboratory of Major Diseases in ChildrenBeijing Key Laboratory for Genetics of Birth DefectsNational Center for Children’s HealthBeijing Children’s HospitalCapital Medical UniversityNo.56 Nan Li Shi LuBeijing100045China

Splenic infarction(SI)is a rare clinical phenomenon that occurs when the blood supply to the spleen is interrupted,resulting in tissue ischemia and necrosis[1].There are many causes of SI;in adult patients,cardioembolism,hematological malignancy,and infectious disease are the most common[2].Rheumatic diseases,especially systemic lupus erythematosus(SLE)and granulomatosis with polyangitis,can also lead to SI[3];however,only a few cases have been *** are currently no statistically meaningful data on the etiology of SI in *** most patients with SI can recover after conservative treatment,a small number of patients develop complications,such as splenic abscess,splenic rupture,splenic hemorrhage,and hemoperitoneum,and may even undergo splenectomy in severe cases.

关键词： erythematosus lupus treatment

Rational Reductions for Holonomic Sequences

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Journal of Systems Science & Complexity 2024年

作者： WANG rong-hua School of Mathematical Sciences Tiangong University

Given a holonomic sequence F(n), the author characterizes rational functions r(n) so that r(n)F(n) can be summable. The author provides upper and lower bounds on the degree of the numerator of r(n) and shows the denominator of r(n) can be read from annihilators of F(n). This illustration provides the so-called rational reductions which can be used to generate new multi-sum equalities and congruences from known ones.

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Variational quantum algorithm for node embedding

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Fundamental Research 2024年第4期4卷 845-850页

作者： zeng-rong Zhou Hang Li Gui-Lu Long Research Center for Quantum Sensing Zhejiang LabHangzhou 311121China Bejing Academy of Quantum Information Sciences Beijing 100193China State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics Tsinghua UniversityBeijing 100084China

Quantum machine learning has made remarkable progress in many important ***,the gate complexity of the initial state preparation is seldom considered in lots of quantum machine learning algorithms,making them ***,we propose a quantum algorithm for the node embedding problem that maps a node graph's topological structure to embedding *** resulting quantum embedding state can be used as an input for other quantum machine learning *** O(log(N))qubits to store the information of N nodes,our algorithm will not lose quantum advantage for the subsequent quantum information ***,owing to the use of a parameterized quantum circuit with O(poly(log(N)))depth,the resulting state can serve as an efficient quantum *** addition,we explored the measurement complexity of the quantum node embedding algorithm,which is the main issue in training parameters,and extended the algorithm to capture high-order neighborhood information between ***,we experimentally demonstrated our algorithm on an nuclear magnetic resonance quantum processor to solve a graph model.

关键词： Quantum machine learning Quantum computation Node embedding Variational quantum algorithm Nuclear magnetic resonance

Pharmacotherapy of urethral stricture

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Asian Journal of Andrology 2024年第1期26卷 1-9页

作者： Hui Luo Ke-Cheng Lou Ling-Yu Xie Fei zeng Jun-rong Zou The First Clinical College Gannan Medical UniversityGanzhou 341000China Department of Urology The First Affiliated Hospital of Gannan Medical UniversityGanzhou 341000China Institute of Urology The First Affiliated Hospital of Gannan Medical UniversityGanzhou 341000China Jiangxi Engineering Technology Research Center of Calculi Prevention Ganzhou 341000China

Urethral stricture is characterized by the chronic formation of fibrous tissue,leading to the narrowing of the urethral *** the availability of various endoscopic treatments,the recurrence of urethral strictures remains a common *** pharmacotherapy targeting tissue fibrosis is a promising option for reducing recurrence *** drugs cannot replace surgery,they can be used as adjuvant therapies to improve *** this regard,many drugs have been proposed based on the mechanisms underlying the pathophysiology of urethral *** studies have obtained substantial progress in treating urethral strictures,highlighting the potential for improved drug effectiveness through appropriate clinical delivery ***,this review summarizes the latest researches on the mechanisms related to the pathophysiology of urethral stricture and the drugs to provide a theoretical basis and new insights for the effective use and future advancements in drug therapy for urethral stricture.

关键词： adjuvant therapy pathophysiology pharmacotherapy urethra urethral stricture

Construction of Naphthalenediimide Lanthanide(Ⅲ)-MOFs and Composites Incorporated Electron-Rich Pyrene Derivative as Multifunctional Fluorescence Sensing for Nitro Aromatic Compounds and Aldehydes

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Chinese Journal of Chemistry 2024年第3期42卷 283-293页

作者： rong Huo Ting Zhang Guang zeng Chen Wang Yong Heng Xing Feng Ying Bai College of Chemistry and Chemical Engineering Liaoning Normal UniversityDalianLiaoning116029 China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023 China

The development of host-guest MOF luminescent composites has attracted considerable attention. However,it is still a challenge to reasonably design large scale conjugated polycarboxylic acids metal-organic framework (MOF) and modulate donor-acceptor interaction. Herein,a series of isostructural 3D porous lanthanide MOF [Ln_(2)(BINDI)0.5(NO_(3))(DMA)(H_(2)O)]∙DMA∙2.5H_(2)O (Ln = La (1),Ce (2),Pr (3) and Nd (4);H_(4)BINDI (N,N’-bis(5-isophthalic acid)-1,4,5,8-naphthalenediimide) were synthesized. Considering the electron-deficient performances of Ln-BINDI MOFs,D-A type composites Ln-MOFs (1—4@H_(4)TBAPy) were prepared via the incorporation of electron-rich H_(4)TBAPy (1,3,6,8-tetrakis(p-benzoic acid) pyrene),which more improved the luminescence performance of complexes 1—4 and can be used as fluorescence sensors for the detection of nitro compounds and aldehydes. High sensitivity of 1@H_(4)TBAPy towards pNBA,pNA PNP,DNP,and TNP could be achieved through hydrogen bond interactions between MOF and analytes,as well as the π-π interaction between H_(4)TBAPy and the naphthalene ring of BINDI,thus the fluorescence quenching efficiency of 1@H_(4)TBAPy was better than that of the complex 1. In addition,it is found that 1@H_(4)TBAPy has high selectivity and sensitivity to aromatic aldehyde SA,5-Mesal and HMBA. Such strategy to enhance the emission of NDI based Ln-BINDI MOFs,will open up an avenue to obtain more fluorescent MOFs for sensing.

关键词： Ln-MOF Pyrene molecule NACs Aldehydes Fluorescence sensing Carboxylate ligands Charge transfer Donor-acceptor systems

Research of simulation and experiment on arc characteristics of gas mechanical switch

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HIGH VOLTAGE 2024年第3期9卷 626-635页

作者： Jiang, Cheng Qu, Lu Yu, Zhangqing Gan, Zhizheng Yan, Xin zeng, rong huang, Yulong Li, Shaofu Tsinghua Univ Dept Elect Engn Beijing Peoples R China Southwest Univ Sci & Technol Sch Informat Engn Mianyang Peoples R China Tsinghua Univ Sichuan Energy Internet Res Inst Chengdu Peoples R China

An arc is the high-temperature discharge plasma produced in the opening process of mechanical switches, which directly affects the breaking capability of a hybrid DC circuit breaker. According to the physical mechanism of an electric arc, the construction of an arc model for simulation analysis is an important technical means in the electrical field. In this study, based on the theory of magneto hydrodynamics (MHD), a gas mechanical switch model of a natural commutation DC circuit breaker with a compound gap is established. The arc motion process under different conditions is simulated and calculated. The influence of different initial pressures, different opening speeds, and different striking currents on the arc voltage characteristics is analysed. The results show that the larger the gas pressure, the smaller the arc volume and the higher the arc voltage. The faster the opening speed, the longer the arc and the higher the arc voltage; with the increase of the current, the arc voltage increases rapidly at a low current, while the arc voltage increases slowly at a high current.

关键词： CIRCUIT-BREAKER COEFFICIENTS