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MXene Hybridized Polymer with Enhanced Electromagnetic Energy Harvest for Sensitized Microwave Actuation and Self‑Powered Motion Sensing

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nano-Micro Letters 2025年第3期17卷 265-279页

作者： Yu‑Ze Wang Yu‑Chang Wang Ting‑Ting liu Quan‑liang Zhao Chen‑sha li Mao‑Sheng Cao School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081People’s Republic of China School of Materials Science and Engineering Peking UniversityBeijing 100871People’s Republic of China School of Mechanical and Material Engineering North China University of TechnologyBeijing 100144People’s Republic of China Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People’s Republic of ChinaHeilongjiang UniversityHarbin 150080People’s Republic of China

Polymeric microwave actuators combining tissue-like softness with programmablemicrowave-responsive deformation hold great promise for mobile intelligentdevices and bionic soft robots. However, their application is challenged by restricted electromagneticsensitivity and intricate sensing coupling. In this study, a sensitized polymericmicrowave actuator is fabricated by hybridizing a liquid crystal polymer with Ti3C2Tx(MXene). Compared to the initial counterpart, the hybrid polymer exhibits unique spacechargepolarization and interfacial polarization, resulting in significant improvements of230% in the dielectric loss factor and 830% in the apparent efficiency of electromagneticenergy harvest. The sensitized microwave actuation demonstrates as the shortenedresponse time of nearly 10 s, which is merely 13% of that for the initial shape memory polymer. Moreover, the ultra-low content of MXene (upto 0.15 wt%) benefits for maintaining the actuation potential of the hybrid polymer. An innovative self-powered sensing prototype that combinesdriving and piezoelectric polymers is developed, which generates real-time electric potential feedback (open-circuit potential of ~ 3 mV) duringactuation. The polarization-dominant energy conversion mechanism observed in the MXene-polymer hybrid structure furnishes a new approachfor developing efficient electromagnetic dissipative structures and shows potential for advancing polymeric electromagnetic intelligent devices.

关键词： Microwave absorption Electromagnetic response Energy harvest Self-sensing Soft actuator

Human leukocyte antigen and donor-specific antibodies in liver transplantation

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World Journal of Gastroenterology 2025年第2期31卷 157-160页

作者： Qimudesiren sha-na Chen li-Ren Qian School of Clinical Medicine Inner Mongolia Minzu UniversityTongliao 028000Inner Mongolia Autonomous RegionChina Department of Hematology International Mongolian Hospital of Inner MongoliaHohhot 010065Inner Mongolia Autonomous RegionChina Senior Department of Hematology The Fifth Medical Center of PLA General HospitalBeijing 100071China The Second School of Clinical Medicine Southern Medical UniversityGuangzhou 510515Guangdong ProvinceChina

In this article,we comment on an article published in a recent issue of the World Journal of *** specifically focus on the roles of human leukocyte antigen(HLA)and donor-specific antibodies(DSAs)in pediatric liver transpl-antation(LT),as well as the relationship between immune rejection after LT and ***,LT remains the standard of care for pediatric patients with end-stage liver disease or severe acute liver ***,acute and chronic re-jection continues to be a significant cause of graft dysfunction and *** mismatch significantly reduces graft survival and increases the risk of acute *** them,D→R one-way mismatch at three loci was significantly related to graft-versus-host disease incidence after *** adverse impact of HLA-DSAs on LT recipients is already ***,the evaluation of HLA and DSA is crucial in pediatric LT.

关键词： liver transplantation Human leukocyte antigen Donor-specific antibodies De novo donor-specific antibody Antibody-mediated rejection

Protective effect and mechanisms of action of Mongolian medicine Sulongga-4 on pyloric ligation-induced gastroduodenal ulcer in rats

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World Journal of Gastroenterology 2021年第16期27卷 1770-1784页

作者： shan Tong Huan Wang li-sha a.ta.na.bai Ju-Hua Gong Wen-Jie Jin li-li Dai Gen-na Ba Sung-Bo Cho Ming-Hai Fu School of Mongolian Medicine Inner Mongolia University for NationalitiesTongliao 028000Inner Mongolia Autonomous RegionChina Mongolian Medicine Surgery Department Affiliated Hospital of Inner Mongolia University for NationalitiesTongliao 028000Inner Mongolia Autonomous RegionChina Traditional Mongolian Medicine Research Institute Inner Mongolia University for NationalitiesTongliao 028000Inner Mongolia Autonomous RegionChina

BACKGROUND Sulongga-4(SL-4)is a herbal formula used in traditional Mongolian medical clinics for the treatment of peptic ulcers and gastroenteritis,even though its pharmacological mechanism has not been well *** To evaluate the protective effect and identify the mechanisms of action of SL-4 on gastroduodenal ulcer induced by pyloric ligation(PL)in *** PL was performed to induce gastric and duodenal ulcers in rats,which were then treated with oral SL-4(1.3,2.6,or 3.9 g/kg per day)for 15 ***-induced gastroduodenal *** effects were characterized by pathological and histological evaluations and inflammatory indicators were analyzed by enzyme-linked immunosorbent *** analyses were conducted to identify gene expression profiles of gastroduodenal tissue in PL rats with or without SL-4 *** candidate target genes were selected and verified by quantitative reverse transcription polymerase chain reaction(qRT-PCR).RESULTS SL-4 decreased histopathological features in the PL-induced ulcerated ***-4 significantly (P taglandin E2 and epidermal growth factor in ulcer tissue. Microarray analysiswas used to identify a panel of candidate target genes for SL-4 acting on Plinducedulceration. Genes included some complement and coagulation cascadeand retinol metabolism pathways that are closely associated with inflammatoryresponses and gastric mucosal protective mechanisms. qRT-PCR showed thataltered expression of the selected genes, such as CYP2b2, UGT2b1, A2m, andMASP1 was consistent with the microarray ***-4 exerts protective effects against PL-induced gastroduodenal ulcers viareducing inflammatory cytokines and elevating expression of gastric acidinhibitory factors. Downregulation of CYP2b2 and UGT2b1 genes in retinolmetabolism and upregulation of A2m and MASP1 ge

关键词： Sulongga-4 Peptic ulcer Pyloric ligation Microarray analysis Inflammatory reaction Retinol metabolism

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山西省水利标准化工作现状及建议

水利技术监督 2025年第1期 1-2,14页

作者：李莎山西省水利发展中心山西太原030002

为积极探索山西省水利标准化工作方向,提升标准化工作的战略性和前瞻性,文章基于对山西省标准化及水利标准化工作现状进行分析,针对当前存在的问题,提出健全组织机构、加大资金投入、加强人才培养力度、完善标准体系和加大标准宣贯力度... 详细信息

为积极探索山西省水利标准化工作方向,提升标准化工作的战略性和前瞻性,文章基于对山西省标准化及水利标准化工作现状进行分析,针对当前存在的问题,提出健全组织机构、加大资金投入、加强人才培养力度、完善标准体系和加大标准宣贯力度等5点对策与建议,旨在提高水利标准化工作水平,促进水利高质量发展。研究结果可为其他标准化工作提供参考。

关键词：标准化水利工作山西

Hydrothermal Synthesis and Crystal Structure of a Cd^(2+) Supramolecular Coordination Complex{[Cd_2(HCAM)_2(H_2O)_4]·3.5H_2O}_n with a 3D Metal-organic Open Framework

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Chinese Journal of Structural Chemistry 2010年第7期29卷 1067-1071页

作者： ZHOU Qiu-Xiang li sha-sha WANG Meng bai Xiao-Jie Langfang Teachers College Langfang 065000 China College of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 China

A three-dimensional coordination polymer {[Cd2（HCAM）2（H2O）4].***2O}n was synthesized by the hydrothermal reaction of H3CAM （H3CAM = 4-hydroxypyridine-2,6-dicerboxylic acid） and Cd（NO3）2·4H2O. The structure was characterized by elemental analysis, thermal gravimetric analysis, infrared spectroscopy and single-crystal X-ray diffraction. It crystallizes in triclinic, space group P1 with a = 9.4389（19）, b = 11.009（2）, c = 11.192（2） A, α = 87.87（3）, β= 74.63（3）, γ = 81.22（3）°, V= 1108.2（4） A3, Z = 2, Dc= 2.164 g/cm3,μ = 2.011 mm^-1, F（000） = 710, R = 0.0419 and wR = 0.1170. X-ray analysis reveals that the title compound adopts a one-dimensional staircase structure by carboxyl of H3CAM and water molecules, and it is further linked by hydrogen bonds to form a 3-D metal-organic open framework. The thermal gravimetric analysis displays that the framework exists stably below 300 ℃.

关键词： hydrothermal synthesis 3D coordination polymer crystal structure

Atomically precise nickel-sulfur clusters for efficient electrochemical 2,5-hydroxymethylfurfural oxidation

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nano Research 2025年第1期18卷 140-148页

作者： Fen Wang Lu-Yu liu sha-sha Cui Ting-Ting li Xiao-Meng Yang Zhijuan liu Yanyong Wang Henan Key Laboratory of Crystalline Molecular Functional Materials Henan International Joint Laboratory of Tumor Theranostical Cluster MaterialsGreen Catalysis Centerand College of ChemistryZhengzhou UniversityZhengzhou 450001China State Key Laboratory of Chem/Bio-sensing and Chemometrics College of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082China

Nickel sulfide exhibits excellent catalytic activity in the electrochemical 2,5-hydroxymethylfurfural oxidation reaction(HMFOR).However,due to the polydispersity of nanoparticles,it is difficult to establish a clear structure-activity relationship at the atomic *** this work,we have successfully synthesized atomically precise Ni_(6)(PET)_(12)and Ni_(4)(PET)_(8)clusters(PET:2-phenylethanethiol)for ***^(2+)and S_(2)-with atomic ratio of 1:2 was mainly existed in Ni_(6)(PET)_(12)and Ni_(4)(PET)_(8)to form Ni-S *** electrochemical test results have suggested both Ni_(6)(PET)_(12)and Ni_(4)(PET)_(8)displayed outstanding electrocatalytic ability for *** Ni_(6)(PET)_(12)exhibited better electrocatalytic ability than Ni_(4)(PET)_(8)with higher current density,lower overpotential and faster reaction *** superior electrochemical ability of Ni_(6)(PET)_(12)may be due to the enhanced adsorption towards HMF molecule with strong interaction towards hydroxyl group and furan ***,it found that the Ni^(2+)species in Ni_(6)(PET)_(12)could rapidly oxidized into Ni^(3+)species,which could spontaneously capture electron and proton from HMF for *** theoretical calculation demonstrated that the Ni_(6)(PET)_(12)process lower free energy barrier than Ni_(4)(PET)_(8)to display excellent electrocatalytic *** work is of great significance for designing efficient electrocatalysts for HMFOR.

关键词： atomically precise nickel nanoclusters 2 5-hydroxymethylfurfural electro-oxidation Ni3+species

Multi-Class Classification Methods of Cost-Conscious LS-SVM for Fault Diagnosis of Blast Furnace

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Journal of Iron and Steel Research International 2011年第10期18卷 17-23,33页

作者： liU li-mei WANG An-na sha Mo ZHAO Feng-yun College of Information Science and Engineering Northeastern University Shenyang 110819 Liaoning China

Aiming at the limitations of rapid fault diagnosis of blast furnace, a novel strategy based on cost-conscious least squares support vector machine （LS-SVM） is proposed to solve this problem. Firstly, modified discrete particle swarm optimization is applied to optimize the feature selection and the LS-SVM parameters. Secondly, cost-con- scious formula is presented for fitness function and it contains in detail training time, recognition accuracy and the feature selection. The CLS-SVM algorithm is presented to increase the performance of the LS-SVM classifier. The new method can select the best fault features in much shorter time and have fewer support vectbrs and better general- ization performance in the application of fault diagnosis of the blast furnace. Thirdly, a gradual change binary tree is established for blast furnace faults diagnosis. It is a multi-class classification method based on center-of-gravity formula distance of cluster. A gradual change classification percentage ia used to select sample randomly. The proposed new metbod raises the sped of diagnosis, optimizes the classifieation scraraey and has good generalization ability for fault diagnosis of the application of blast furnace.

关键词： blast furnace fault diagnosis eosc-conscious LS-SVM multi-class classification

Spatio-temporal patterns of satellite-derived grassland vegetation phenology from 1998 to 2012 in Inner Mongolia, China

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Journal of Arid Land 2016年第3期8卷 462-477页

作者： sha Zongyao ZHONG Jialin bai Yongfei taN Xicheng Jonathan li International Software School Wuhan University Department of Geography & Environmental Management University of Waterloo Institute of Botany Chinese Academy of Sciences

Spatio-temporal variations of vegetation phenology, e.g. start of green-up season（SOS） and end of vegetation season（EOS）, serve as important indicators of ecosystems. Routinely processed products from remotely sensed imagery, such as the normalized difference vegetation index（NDVI）, can be used to map such variations. A remote sensing approach to tracing vegetation phenology was demonstrated here in application to the Inner Mongolia grassland, China. SOS and EOS mapping at regional and vegetation type（meadow steppe, typical steppe, desert steppe and steppe desert） levels using SPOT-VGT NDVI series allows new insights into the grassland ecosystem. The spatial and temporal variability of SOS and EOS during 1998–2012 was highlighted and presented, as were SOS and EOS responses to the monthly climatic fluctuations. Results indicated that SOS and EOS did not exhibit consistent shifts at either regional or vegetation type level; the one exception was the steppe desert, the least productive vegetation cover, which exhibited a progressive earlier SOS and later EOS. Monthly average temperature and precipitation in preseason（February, March and April） imposed most remarkable and negative effects on SOS（except for the non-significant impact of precipitation on that of the meadow steppe）, while the climate impact on EOS was found to vary considerably between the vegetation types. Results showed that the spatio-temporal variability of the vegetation phenology of the meadow steppe, typical steppe and desert steppe could be reflected by the monthly thermal and hydrological factors but the progressive earlier SOS and later EOS of the highly degraded steppe desert might be accounted for by non-climate factors only, suggesting that the vegetation growing period in the highly degraded areas of the grassland could be extended possibly by human interventions.

关键词： phenological timing degradation harmonic analysis human activity climate restoration

Mucosa-associated lymphoid tissue lymphoma with unusual 18F-FDG hypermetabolism arising at the colorectal anastomosis

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World Journal of Gastroenterology 2017年第3期23卷 551-559页

作者： na-sha Zhang Fang Shi li Kong Hui Zhu Department of Radiation Oncology Shandong Cancer Hospital affiliated to Shandong UniversityShandong Academy of Medical SciencesJinan 250117Shandong ProvinceChina

Mucosa-associated lymphoid tissue (MALT) lymphoma usually originates from the stomach and presents with low ^(18)F-fluorodeoxyglucose (FDG) avidity with average maximum standard uptake value of 3.6. Colorectal MALT lymphoma is a rare entity that contributes to 1.6% of all MALT lymphomas and nal malignancies. The case reported herein firstly revealed stage Ⅱ MALT lymphoma with unexpected higher ^(18)F-FDG avidity of 18.9 arising at the colorectal anastomosis in a patient with a surgical history for sigmoid adenocarcinoma, which was strongly suspected as local recurrence before histopathological and immunohistochemical examinations. After accurate diagnosis, the patient received four cycles of standard R-CVP regimen (rituximab, cyclophosphamide, vincristine and prednisone), combined target therapy and chemotherapy, instead of radiotherapy recommended by national Comprehensive Cancer Network guidelines. He tolerated the treatment well and reached complete remission.

关键词： Colorectal anastomosis Mucosa-associated lymphoid tissue lymphoma Etiopathogenesis Unusual 18F-FDG hypermetabolism 18F-FDG-PET/CT imaging Patient-tailored treatment