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Permeable carbon fiber based thermoelectric film with exceptional EMI shielding performance and sensor capabilities

Journal of Advanced Ceramics 2024年第8期13卷 1119-1131页

作者： Junjie zhu Chuan Sun Wanlin feng Mengran Chen Peng-An Zong Chunlei Wan College of Materials Science and Engineering Nanjing Tech UniversityNanjing 211800China Nationai Innovation Institute of Defense Technology Academy of Military Sciences of the People's Liberation Army of ChinaBeijing 100089China Institute of Nuclear Physics and Chemistry Innovation Research Team for Advanced CeramicsChina Academy of Engineering PhysicsMianyang 621900China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

Thermoelectric(TE)technologies offer a promising approach for directly converting skin heat into electricity for wearable *** p-type Sb2Tes and n-type BizTes as top-performing materials at room temperature,their rigid inorganic structure,with ultralow moisture permeability,poses challenges in warm and humid conditions,fostering bacterial growth and potential skin *** address this issue,we developed a cross-linked core-shell structure by electrodepositing Sb_(2)Te_(3)(Bi_(2)Te_(3))onto carbon fiber(CF).This architecture significantly improved the electrical conductivity and the Seebeck coefficient,resulting in a remarkable 300-fold increase in the power factor compared to that of pure *** CF/Sb_(2)Te_(3) and CF/Bi2Te films demonstrated optimal power factors of 450 and 121μW·m^(-1)·K^(-2),***,the fabricated films exhibited outstanding moisture permeability,over 3000 g·m^(-2)·d^(-1),exceptional electromagnetic interference shielding efficiency approaching 93 dB,and versatility as sensors for language assistance and respiratory *** attributes underline their broad applicability,emphasizing their suitability for human health protection in diverse scenarios.

关键词： thermoelectric(TE) carbon fiber(CF) Bi_(2)Te_(3) electrodeposition moisture permeability electromagnetic interference shielding

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Microstructure evolution,mechanical properties and fracture behavior of Al-xSi/AZ91D bimetallic composites prepared by a compound casting

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Journal of Magnesium and Alloys 2024年第5期12卷 1944-1964页

作者： Guangyu Li Wenming Jiang feng Guan Junwen zhu Yang Yu Zitian Fan State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China

In this paper,the effect of the Si content on microstructure evolution,mechanical properties,and fracture behavior of the Al-xSi/AZ91D bimetallic composites prepared by compound casting was investigated *** obtained results showed that all the Al-xSi/AZ91D bimetallic composites had a metallurgical reaction layer(MRL),whose thickness increased with increasing Si content for the hypoeutectic Al-Si/AZ91D composites,while the hypereutectic Al-Si/AZ91D composites were *** MRL included eutectic layer(E layer),intermetallic compound layer(IMC layer)and transition region layer(T layer).In the IMC layer,the hypereutectic Al-Si/AZ91D composites contained some Si solid solution and flocculent Mg_(2)Si+Al-Mg IMCs phases not presented in the hypoeutectic Al-Si/AZ91D ***,increasing Si content,the thickness proportion of the T layer increased,forming an inconsistent preferred orientation of the *** shear strengths of the Al-xSi/AZ91D bimetallic composites enhanced with increasing Si content,and the Al-15Si/AZ91D composite obtained a maximum shear strength of 58.6 MPa,which was 73.4% higher than the Al-6Si/AZ91D *** fractures of the Al-xSi/AZ91D bimetallic composites transformed from the T layer into the E layer with the increase of the Si *** improvement of the shear strength of the Al-xSi/AZ91D bimetallic composites was attributed to the synergistic action of the Mg_(2)Si particle reinforcement,the reduction of oxidizing inclusions and the ratio of Al-Mg IMCs as well as the orientation change of the MRL.

关键词： Al/Mg bimetallic composites Si content Mg_(2)Si reinforcement Microstructure Mechanical properties Fracture behavior

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Electromagnetic Performance Analysis of Variable Flux Memory Machines with Series-magnetic-circuit and Different Rotor Topologies

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CES Transactions on Electrical Machines and Systems 2024年第1期8卷 3-11页

作者： Qiang Wei Z.Q.zhu Yan Jia Jianghua feng Shuying Guo Yifeng Li Shouzhi feng Department of Electronic and Electrical Engineering The University of SheffieldSheffield S13JDU.K. IEEE the CRRC zhuzhou Institute Company Ltd. Zhuzhou 412001China

In this paper,the electromagnetic performance of variable flux memory(VFM)machines with series-magnetic-circuit is investigated and compared for different rotor *** on a V-type VFM machine,five topologies with different interior permanent magnet(IPM)arrangements are evolved and optimized under same *** on two-dimensional(2-D)finite element(FE)method,their electromagnetic performance at magnetization and demagnetization states is *** reveals that the iron bridge and rotor lamination region between constant PM(CPM)and variable PM(VPM)play an important role in torque density and flux regulation(FR)***,the global efficiency can be improved in VFM machines by adjusting magnetization state(MS)under different operating conditions.

关键词： Memory machine Permanent magnet Rotor topologies Series magnetic circuit Variable flux

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Enhanced electrochemical oxidation of perfluorooctanoic acid on Ti/SnO_(2)-Sb electrode by surface morphology regulation

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Chinese Chemical Letters 2024年第3期35卷 140-143页

作者： Kaiqiang Hou Genwang zhu Yujie feng Yanming Liu Xie Quan Key Laboratory of Industrial Ecology and Environmental Engineering(Ministry of Education China)School of Environmental Science and TechnologyDalian University of TechnologyDalian 116024China State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China

Electrochemical oxidation is an effective method to degrade persistent organic ***,due to the limited catalytic activity of traditional thin film electrodes,the anodic oxidation process is slow and usually requires high energy ***,Ti/SnO_(2)-Sb electrode with regulated surface structure was reported to enhance the performance for electrochemical oxidation of persistent organic *** electrode deposited with SnO_(2)-Sb nanoneedles(Ti/N-SnO_(2)-Sb)showed higher oxidation *** kinetic constant for perfluorooctanoic acid(PFOA)oxidation was 2.0 h^(-1)and the total organic carbon removal rate was 81.7%(4 h)at a relatively low current density of 6 mA/cm^*** with Ti/SnO_(2)-Sb thin film and nanoparticles,Ti/N-SnO_(2)-Sb significantly improved the electrochemical active area and·OH yield,and simultaneously reduced the electron transfer resistance,which enabled it to oxidize PFOA more rapidly even at a lower *** work provides a new strategy for promoting the electrochemical oxidation performance.

关键词： Electrochemical oxidation Nanoneedle SnO_(2)-Sb Perfluoroalkyl compounds Electrochemical degradation Persistent organic pollutants

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Cycloastragenol induces apoptosis and protective autophagy through AMPK/ULK1/mTOR axis in human non-small cell lung cancer cell lines

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Journal of Integrative Medicine 2024年第4期22卷 503-514页

作者： Li-hua zhu Yu-pei Liang Lian Yang feng zhu Li-jun Jia He-gen Li Department of Oncology Longhua HospitalShanghai University of Traditional Chinese MedicineShanghai 200032China Cancer Institute of Traditional Chinese Medicine Longhua HospitalShanghai University of Traditional Chinese MedicineShanghai 200032China Department of Laboratory Medicine Huadong HospitalFudan UniversityShanghai 200237China

Objective:Studies have demonstrated that cycloastragenol induces antitumor effects in prostate,colorectal and gastric cancers;however,its efficacy for inhibiting the proliferation of lung cancer cells is largely *** study explores the efficacy of cycloastragenol for inhibiting non-small cell lung cancer(NSCLC)and elucidates the underlying molecular ***:The effects of cycloastragenol on lung cancer cell proliferation were assessed using an adenosine triphosphate monitoring system based on firefly luciferase and clonogenic formation ***-induced apoptosis in lung cancer cells was evaluated using dual staining flow cytometry with an annexin V-fluorescein isothiocyanate/propidium iodide *** elucidate the role of cycloastragenol in the induction of apoptosis,apoptosis-related proteins were examined using Western *** and Western blotting were used to determine whether cycloastragenol could induce autophagy in lung cancer *** techniques,including small interfering RNA technology,were used to investigate the underlying *** effects against lung cancer and biosafety of cycloastragenol were evaluated using a mouse subcutaneous tumor ***:Cycloastragenol triggered both autophagy and ***,cycloastragenol promoted apoptosis by facilitating the accumulation of phorbol-12-myristate-13-acetate-induced protein 1(NOXA),a critical apoptosis-related ***,cycloastragenol induced a protective autophagy response through modulation of the adenosine 5'-monophosphate-activated protein kinase(AMPK)/unc-51-like autophagy-activating kinase(ULK1)/mammalian target of rapamycin(mTOR)***:Our study sheds new light on the antitumor efficacy and mechanism of action of cycloastragenol in *** insight provides a scientific basis for exploring combination therapies that use cycloastragenol and inhibiting the AMPK/ULK1/mTOR pathway as a promising approach to

关键词： Non-small cell lung cancer Cycloastragenol Autophagy Apoptosis

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Effect of rare earth on primary carbides in H13 die steel and their addition method:a review

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Journal of Iron and Steel Research International 2024年第3期31卷 531-551页

作者： Jing-feng Wang Lin-zhu Wang Chao-yi Chen Xiang Wang Fei Zhao School of Materials and Metallurgy Guizhou UniversityGuiyang 550025GuizhouChina Zhengzhou Railway Vocational and Technical College Zhengzhou 450000HenanChina Guizhou Provincial University Key Laboratory of High Performance Battery Materials Guizhou UniversityGuiyang 550025GuizhouChina Shougang Guiyang Special Steel Co. Guiyang 550005GuizhouChina

Larger-sized primary carbides lead to stress concentration during the application of H13 hot-work die steel,resulting in microcracks and fatigue *** earth was usually added to modify the carbides and *** existing literature is reviewed on the effect of rare earth on primary carbides in H13 steel.A comprehensive review on the effect of rare earth on the characteristics of primary carbides,i.e.,number,size,morphology,and thermal stability in H13 steel,was *** precipitation mechanism and nucleation of primary carbides with rare earth were *** position and form of rare earth in steel and their effects on alloying elements segregation were *** addition techniques of rare earth in H13 steel were compared,and the prospects for other uncommon rare earth and emerging technology were *** on the current references,it can be known that adding rare earth facilitated refined and dispersed primary *** size of primary carbides would be reduced,and their morphology would be improved because the rare earth inclusions formed in H13 steel can act as nucleation cores forγ-Fe orδ-Fe,refining the dendritic ***,the number of primary carbides at grain boundaries would be significantly ***,rare earth had little impact on thermal *** nucleation of primary carbides tended to be inhibited due to the modification of inclusions by rare earth which were likely to be nucleation cores for primary *** earth had been reported to affect the mechanism and process of primary carbide ***,the addition of rare earth can inhibit the segregation of alloying elements and carbon diffusion by ***,laboratory experiments and theoretical calcu-lations need to be conducted to study the states and evolution of rare earth steels.

关键词： Rare earth H13 die steel Primary carbide Nucleation Dendritic structure

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Assessment of the triglyceride glucose index in adult patients with chronic diarrhea and constipation

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World Journal of Clinical Cases 2024年第6期12卷 1094-1103页

作者： Jing-Yi zhu Mu-yun Liu Chang Sun Department of Gastroenterology The First Affiliated Hospital of Naval Medical UniversityShanghai 200433China Department of Gastroenterology Navy No.905 HospitalNaval Medical UniversityShanghai 200433China

BACKGROUND Accumulating evidence suggests that the gut microbiome is involved in the pathogenesis of insulin resistance(IR).However,the link between two of the most prevalent bowel disorders,chronic diarrhea and constipation,and the triglyceride glucose(TyG)index,a marker of IR,has not yet been *** To investigate the potential association between TyG and the incidence of chronic diarrhea and *** This cross-sectional study enrolled 2400 participants from the National Health and Nutrition Examination Survey database from *** was used as an exposure variable,with chronic diarrhea and constipation as determined by the Bristol Stool Form Scale used as the outcome variables.A demographic investigation based on TyG quartile subgroups was *** application of multivariate logistic regression models and weighted generalized additive models revealed potential correlations between TyG,chronic diarrhea,and *** analyses were performed to examine the stability of any potential *** In the chosen sample,chronic diarrhea had a prevalence of 8.00%,while chronic constipation had a prevalence of 8.04%.In multiple logistic regression,a more prominent positive association was found between TyG and chronic diarrhea,particularly in model 1(OR=1.45;95%CI:1.17-1.79,P=0.0007)and model 2(OR=1.40;95%CI:1.12-1.76,P=0.0033).No definite association was observed between the TyG levels and chronic *** weighted generalized additive model findings suggested a more substantial positive association with chronic diarrhea when TyG was less than 9.63(OR=1.89;95%CI:1.05-3.41,P=0.0344),and another positive association with chronic constipation when it was greater than 8.2(OR=1.74;95%CI:1.02-2.95,P=0.0415).The results of the subgroup analyses further strengthen the extrapolation of these results to a wide range of *** Higher TyG levels were positively associated with abnormal bowel health.

关键词： Triglyceride glucose index National Health and Nutrition Examination Survey Chronic diarrhea Chronic constipation Cross-sectional study Bowel health

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Crystallization of RE_(2)(OH)_(2)CO_(3)SO_(4)·nH_(2)O as a new family of layered hydroxides(RE=Gd-Lu lanthanides and Y),derivation of RE_(2)O_(2)SO_(4),photoluminescence and optical thermometry

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Journal of Rare Earths 2024年第8期42卷 1496-1506,I0003页

作者： Fan Li Zhenqi Song Zhiyuan Pan Sihan feng Qi zhu Ji-Guang Li Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education) School of Materials Science and EngineeringNortheastern UniversityShenyang110819China Research Center for Functional Materials National Institute for Materials ScienceTSsukuboaIbaraki3050044Japan

Layered rare-earth hydroxides(LREHs) draw wide research interest because of their peculiar crystal structure,rich interlayer chemistry and abundant functionality of the RE element,but are limited to the two categories of RE_(2)(OH)_(5)A·nH_(2)O(A:typical of Cl^(-)or NO_(3)^(-)) and RE_(2)(OH)_(4)SO_(4)·nH_(2)*** the other hand,rare-earth oxysulfates(RE_(2)O_(2)SO_(4)) have attracted attention due to their properties of large-capacity oxygen storage,low-temperature magnetism and luminescence,but their preparation procedure mostly involves toxic SO_(x) gases and/or complicated *** this work,RE_(2)(OH)_(2)CO_(3)SO_(4)·nH_(2)O as a new family of LREHs(RE=Gd-Lu lanthanides and Y) were produced via hydrothermal reaction,from which phase-pure RE_(2)O_(2)SO_(4) was derived via subsequent annealing at 800℃ in air without the involvement of SO_(x),The compounds were thoroughly characterized to reveal the intrinsic influence of lanthanide contraction(RE^(3+) radius) on crystal structure,thermal behavior(dehydroxylation/decarbonation/desulfurization),vibrational property and crystallite *** analyzing the photoluminescence of Eu^(3+) and Sm^(3+)in the Gd_(2)O_(2)SO_(4) typical host it is found that the 617 nm(Eu^(3+),λ_(ex)=275 nm) and 608 nm(Sm^(3+),λ_(ex)=407 nm) main emissions can retain as high as ^(7)9.6% and 85.5%of their room-temperature intensities at 423 K,with activation energies of ~0.19 and 0.21 eV for thermal quenching,*** also indicates that both the phosphors have the potential for optical temperature sensing via the fluorescence intensity ratio(FIR) technology,whose maximum relative sensitivity reaches -2.70%/K for Eu^(3+)and 1.73%/K for Sm^(3+) at 298 K.

关键词： Layered hydroxide RE_(2)O_(2)SO_(4) Luminescence Optical temperature sensing Rare earths

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A novel Effective Panicle Number per Plant 4 haplotype enhances grain yield by coordinating panicle number and grain number in rice

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The Crop Journal 2024年第1期12卷 202-212页

作者： yun Wang Xiaoqian Wang Laiyuan Zhai Sundus Zafar Congcong Shen Shuangbing zhu Kai Chen yun Wang Jianlong Xu State Key Laboratory of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China State Key Laboratory of Crop Biology College of AgronomyShandong Agricultural UniversityTai’an 271018ShandongChina Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120GuangdongChina Rice Research Institute Shenyang Agricultural UniversityShenyang 110866LiaoningChina National Nanfan Research Institute(Sanya) Chinese Academy of Agricultural SciencesSanya 572024HainanChina

Increasing effective panicle number per plant(EPN)is one approach to increase yield potential in ***,molecular mechanisms underlying EPN remain *** this study,we integrated mapbased cloning and genome-wide association analysis to identify the EPN4 gene,which is allelic to NARROW LEAF1(NAL1).Overexpression lines containing the Teqing allele(TQ)of EPN4 had significantly increased ***-EPN4^(TQ) in japonica(geng)cultivar Lemont(LT)exhibited significantly improved EPN but decreased grain number and flag leaf size relative to *** analysis indicated that accessions with EPN4-1 had medium EPN,medium grain number,and medium grain weight,but had the highest grain yield among seven haplotypes,indicating that EPN4-1 is an elite haplotype of EPN4 for positive coordination of the three components of grain ***,accessions carrying the combination of EPN4-1 and haplotype GNP1-6 of GNP1 for grain number per panicle showed higher grain yield than those with other allele ***,pyramiding of EPN4-1 and GNP1-6 could be a preferred approach to obtain high yield potential in breeding.

关键词： Rice Effective panicle number per plant Grain number per panicle Haplotype Grain yield potential

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Efficacy and safety of Qingfei Huatan formula in the treatment of acute exacerbation of chronic obstructive pulmonary disease:A multi-centre,randomised,double-blind,placebo-controlled trial

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Journal of Integrative Medicine 2024年第5期22卷 561-569页

作者： Hui-zhi zhu Cheng-yi Li Liang-ji Liu Jia-bing Tong Zhi-hui Lan Shu-guang Tian Qiao Li Xiang-li Tong Ji-feng Wu Zhen-gang zhu Su-yun Li Jian-sheng Li Department of Respiratory Medicine the First Affiliated Hospital of Anhui University of Traditional Chinese MedicineHefei 230031Anhui ProvinceChina Graduate School Anhui University of Traditional Chinese MedicineHefei 230012Anhui ProvinceChina Department of Respiratory Medicine Affiliated Hospital of Jiangxi University of Traditional Chinese MedicineNanchang 330006Jiangxi ProvinceChina Department of Respiratory Diseases the First Affiliated Hospital of Henan University of Traditional Chinese MedicineZhengzhou 450000Henan ProvinceChina Department of Pulmonary Diseases Taihe Hospital of Traditional Chinese Medicine Affiliated to Anhui University of Traditional Chinese MedicineFuyang 236600Anhui ProvinceChina Department of Respiratory and Critical Care Medicine Jiangxi Province Hospital of Integrated Chinese and Western MedicineNanchang 330002Jiangxi ProvinceChina Department of Respiratory Medicine the First Affiliated Hospital of Tianjin University of Traditional Chinese MedicineTianjin 300381China Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment and Chinese Medicine Development of Henan Province Zhengzhou 450046Henan ProvinceChina

Background Chronic obstructive pulmonary disease(COPD),a common respiratory disease,can be effectively treated by traditional Chinese medicine(TCM).Qingfei Huatan,a TCM formula,has been reported to effectively alleviate the clinical symptoms of COPD ***,there is a lack of multi-centre,randomised,double-blind,controlled clinical trials documenting the clinical efficacy and safety of this formula in the treatment of acute exacerbation of COPD(AECOPD).Objective This study evaluated the efficacy and safety of Qingfei Huatan formula in the treatment of AECOPD,thereby providing high-quality clinical ***,setting,participants and interventions A total of 276 patients with AECOPD were included in this multi-centre,randomised,double-blind,placebo-controlled trial and were randomised into treatment and control groups at a ratio of 1:*** in the treatment and control groups took Qingfei Huatan granules or simulated Qingfei Huatan granules twice a day,for 14 days,in addition to Western medicine *** patients were followed up for 3 *** outcome measures The primary outcome was time taken to symptom *** secondary outcomes included duration of antibiotic use,clinical symptom and sign score,TCM syndrome score,dyspnoea score,and quality of life(QOL)***,the safety of the formula was assessed through routine urine and stool tests,electrocardiograms,liver and kidney function tests,and the observation of adverse events throughout the *** The time taken for effective stabilisation(P<0.05)and obvious stabilisation(P<0.01),and the duration of antibiotic use(P<0.05)were significantly shorter in the treatment group than in the control *** days 6,9,12 and 14 of treatment,clinical symptom and sign score decreased in both groups,particularly in the treatment group(P<0.01).On days 9,12 and 14 of treatment,the TCM syndrome scores of both groups were reduced(P<0.01),with more significant reductions in the treatm

关键词： Acute exacerbation of chronic obstructive pulmonary disease Clinical trial Syndrome of phlegm-heat congesting lung Qingfei Huatan formula Traditional Chinese medicine

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