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Flexible MXene/sodium alginate composite fabric with high structural stability and oxidation resistance for electromagnetic interference shielding

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Nano Research 2024年第6期17卷 5326-5335页

作者： Hao-Wen Zhang Lu-yao yang Meng-Lin Huang Ming-Hua Cheng Zhe-Sheng Feng Fanbin Meng Zifeng Lin yan Wang School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 610054China Laboratory of Advanced Technologies of Materials(Ministry of Education) School of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China College of Materials Science and Engineering Sichuan UniversityChengdu 610065China

Wearable electromagnetic interference(EMI)shielding fabrics with excellent electromagnetic shielding performance,oxidation resistance,and structural stability are highly demanded for the rapid development of electronic devices and wireless *** are metallic conductive materials with exceptional EMI shielding properties,but they are prone to oxidation in air and have poor structural stability and durability on fabric ***,we present a one-step assembly method to fabricate fabrics coated with MXenes and polymeric sodium alginate(SA)composite(MXene-SA).SA protects MXenes from oxidation and forms a stable interlayer structure by bonding to *** MXene-SA coated fabrics are breathable and flexible,and have a low sheet resistance of 2.12±0.08Ω/sq and a high EMI shielding performance of 37.05 dB at X-band,which is comparable to the best 42.31 ***,the MXene-SA coated fabrics exhibit high structural stability and oxidation resistance under various conditions of sonication disintegration,mechanical abuse,chemical corrosion,and humidity,compared to pure MXenes coated *** believe that the wearable and high-performance MXene-SA fabrics have great potential for the next generation of ultra-portable and wearable EMI shielding products.

关键词： MXenes electromagnetic interference shielding fabric one-step assembly

Value of multiple models of diffusion-weighted imaging to predict hepatic lymph node metastases in colorectal liver metastases patients

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World Journal of Gastroenterology 2024年第4期30卷 308-317页

作者： Hai-Bin Zhu Bo Zhao Xiao-Ting Li Xiao-yan Zhang Qian yao Ying-Shi Sun Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing) Department of RadiologyPeking University Cancer Hospital and InstituteBeijing 100142China Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing) Department of PathologyPeking University Cancer Hospital and InstituteBeijing 100142China

BACKGROUND About 10%-31% of colorectal liver metastases(CRLM)patients would concomitantly show hepatic lymph node metastases(LNM),which was considered as sign of poor biological behavior and a relative contraindication for liver *** to now,there’s still lack of reliable preoperative methods to assess the status of hepatic lymph nodes in patients with CRLM,except for pathology examination of lymph node after *** To compare the ability of mono-exponential,bi-exponential,and stretchedexponential diffusion-weighted imaging(DWI)models in distinguishing between benign and malignant hepatic lymph nodes in patients with CRLM who received neoadjuvant chemotherapy prior to *** In this retrospective study,97 CRLM patients with pathologically confirmed hepatic lymph node status underwent magnetic resonance imaging,including DWI with ten b values before and after *** parameters,such as the apparent diffusion coefficient from the mono-exponential model,and the true diffusion coefficient,the pseudo-diffusion coefficient,and the perfusion fraction derived from the intravoxel incoherent motion model,along with distributed diffusion coefficient(DDC)andαfrom the stretched-exponential model(SEM),were *** parameters before and after chemotherapy were compared between positive and negative hepatic lymph node groups.A nomogram was constructed to predict the hepatic lymph node *** reliability and agreement of the measurements were assessed using the coefficient of variation and intraclass correlation *** Multivariate analysis revealed that the pre-treatment DDC value and the short diameter of the largest lymph node after treatment were independent predictors of metastatic hepatic lymph nodes.A nomogram combining these two factors demonstrated excellent performance in distinguishing between benign and malignant lymph nodes in CRLM patients,with an area under the curve of ***,parameters from SEM sho

关键词： Colorectal cancer Individualized treatment Diffusion magnetic resonance imaging Intravoxel incoherent motion Liver

Game Theory based Optimal Defensive Resources Allocation with Incomplete Information in Cyber-physical Power Systems against False Data Injection Attacks

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Protection and Control of Modern Power Systems 2024年第2期9卷 115-127页

作者： Bingjing yan Zhenze Jiang Pengchao yao Qiang yang Wei Li Albert Y.Zomaya College of Electrical Engineering Zhejiang University College of Control Science and Engineering Zhejiang University College of Electrical Engineering Zhejiang UniversityHangzhou 310027China School of Information Technologies at The University of Sydney School of Information Technologies

Modern power grid is fast emerging as a complex cyber-physical power system(CPPS)integrating physical current-carrying components and processes with cyber-embedded computing,which faces increasing cy-berspace security threats and *** this paper,the state(i.e.,voltage)offsets resulting from false data injection(FDI)attacks and the bus safety characterization are applied to quantify the attack *** state offsets are obtained by the state estimation method,and the bus safety characterization considers the power net-work topology as well as the vulnerability and connection relationship of *** the indeterminacy of attacker’s resource consumption and reward,a zero-sum game-theoretical model from the defender’s perspective with incomplete information is explored for the optimal allocation of limited defensive *** attacker aims to falsify measurements without triggering threshold alarms to break through the protection,leading to load shedding,over-voltage or *** defender attempts to ensure the estimation results to be as close to the actual states as possible,and guarantee the system’s safety and efficient defensive resource *** proposed solution is extensively evaluated through simu-lations using the IEEE 33-bus test network and real-time digital simulator(RTDS)based testbed experiments of the IEEE 14-bus *** results demonstrate the effec-tiveness of the proposed game-theoretical approach for optimal defensive resource allocation in CPPS when lim-ited resources are available when under FDI *** Terms—Optimal strategy,game theory,Nash equilibrium,CPPS,FDI attack.

关键词： Optimal strategy game theory Nash equilibrium CPPS FDI attack

Impact of body mass index on adverse kidney events in diabetes mellitus patients: A systematic-review and meta-analysis

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World Journal of Clinical Cases 2024年第3期12卷 538-550页

作者： Jing-Fang Wan yan Chen Tian-Hua yao Ya-Zhou Wu Huan-Zi Dai Department of Nephrology Army Medical UniversityChongqing 400042China Department of Nephrology Chongqing Western HospitalChongqing 400052China Health Statistics Army Medical UniversityChongqing 400038China Department of Nephrology Daping HospitalArmy Medical UniversityChongqing 400042China

BACKGROUND The incidence of chronic kidney disease among patients with diabetes mellitus(DM)remains a global ***-term obesity is known to possibly influence the development of type 2 diabetes ***,no previous meta-analysis has assessed the effects of body mass index(BMI)on adverse kidney events in patients with *** To determine the impact of BMI on adverse kidney events in patients with *** A systematic literature search was performed on the PubMed,ISI Web of Science,Scopus,Ovid,Google Scholar,EMBASE,and BMJ *** included trials with the following characteristics:(1)Type of study:Prospective,retrospective,randomized,and non-randomized in design;(2)participants:Restricted to patients with DM aged≥18 years;(3)intervention:No intervention;and(4)kidney adverse events:Onset of diabetic kidney disease[estimated glomerular filtration rate(eGFR)of<60 mL/min/1.73 m2 and/or microalbuminuria value of≥30 mg/g Cr],serum creatinine increase of more than double the baseline or end-stage renal disease(eGFR<15 mL/min/1.73 m2 or dialysis),or *** Overall,11 studies involving 801 patients with DM were *** BMI(≥25 kg/m2)was significantly associated with higher blood pressure(BP)[systolic BP by 0.20,95%confidence interval(CI):0.15–0.25,P<0.00001;diastolic BP by 0.21 mmHg,95%CI:0.04–0.37,P=0.010],serum albumin,triglycerides[standard mean difference(SMD)=0.35,95%CI:0.29–0.41,P<0.00001],low-density lipoprotein(SMD=0.12,95%CI:0.04–0.20,P=0.030),and lower high-density lipoprotein(SMD=–0.36,95%CI:–0.51 to–0.21,P<0.00001)in patients with DM compared with those with low BMIs(<25 kg/m2).Our analysis showed that high BMI was associated with a higher risk ratio of adverse kidney events than low BMI(RR:1.22,95%CI:1.01–1.43,P=0.036).CONCLUSION The present analysis suggested that high BMI was a risk factor for adverse kidney events in patients with DM.

关键词： Obesity Body mass index Diabetes mellitus Adverse kidney events Systematic-review Meta-analysis

Yiwei Xiaoyu granules for treatment of chronic atrophic gastritis with deficiency syndrome of the spleen and stomach

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World Journal of Clinical Cases 2024年第13期12卷 2201-2209页

作者： Wan-qun Chen Qing-Feng Fan Yuan-Jun He Fei Li Xin Wu yan-Ping Li Xiao-Jun yang Department of Gastroenterology Chongqing Hospital of Traditional Chinese MedicineChongqing 400000China

BACKGROUND The Correa sequence,initiated by Helicobacter pylori(***),commonly progresses to gastric cancer through the stage of chronic atrophic gastritis(CAG).Although eradication of *** only reduces the risk of gastric cancer,it does not eliminate the risk for neoplastic *** Xiaoyu granules(YWXY)are a commonly used composite preparation in Chinese ***,the pursuit of excellence in clinical trials and the establishment of standardized animal experiments are still needed to contribute to full understanding and application of traditional Chinese medicine in the treatment of *** To demonstrate the effectiveness of YWXY in patients with CAG and spleenstomach deficiency syndrome(DSSS),by alleviating histological scores,improving response rates for pathological lesions,and achieving clinical efficacy in relieving DSSS *** We designed a double-blind,randomized,controlled *** study enrolled seventy-two ***-negative patients(mean age,52.3 years;38 men)who were randomly allocated to either the treatment group or control group in a 1:1 ratio,and treated with 15 g YWXY or 0.36 g Weifuchun(WFC)tablet combined with the respective dummy for 24 *** pre-randomization phase resulted in the exclusion of 72 patients:50 participants did not meet the inclusion criteria,12 participants declined to participate,and 10 participants were excluded for various other *** visits were conducted during the study,and histopathological examination with target endoscopic biopsy of narrow-band imaging was requested before the first and seventh *** also evaluated endoscopic performance scores,total symptom scores,serum pepsinogen and *** Six patients did not complete the trial *** with YWXY improved the Operative Link on Gastric Intestinal Metaplasia Assessment(OLGIM)stage,compared with WFC(P<0.05).YWXY provided better relief from symptoms of DSSS and better improvement in serum gastric fun

关键词： Chronic atrophic gastritis Yiwei Xiaoyu granules Randomized clinical trial Weifuchun tablet Traditional Chinese medicine Helicobacter pylori

A Novel Two-dimensional Low-redundancy Array Design for Solar Radio Imaging

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Research in Astronomy and Astrophysics 2024年第9期24卷 178-189页

作者： Weidan Zhang Bing Wang Zhao Wu Guang Lu yao Chen yan Fabao Laboratory for Electromagnetic Detection Institute of Space SciencesShandong UniversityWeihai 264209China Center for Integrated Research on Space Science Astronomyand PhysicsInstitute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China School of Mechanical Electrical&Information EngineeringShandong UniversityWeihai 264209China

The radioheliograph is an extensive array of antennas operating on the principle of aperture synthesis to produce images of the *** image acquired by the telescope results from convoluting the Sun’s true brightness distribution with the antenna array’s directional *** imaging quality of the radioheliograph is affected by a multitude of factors,with the performance of the“dirty beam”being simply one *** factors such as imaging methods,calibration techniques,clean algorithms,and more also play a significant influence on the resulting image *** the layout of the antenna array directly affects the performance of the dirty beam,the design of an appropriate antenna configuration is critical to improving the imaging quality of the *** on the actual needs of observing the Sun,this work optimized the antenna array design and proposed a twodimensional low-redundancy *** proposed array was compared with common T-shaped arrays,Y-shaped arrays,uniformly spaced circular arrays,and three-arm spiral *** simulations and experiments,their performance in terms of sampling point numbers,UV coverage area,beam-half width,sidelobe level,and performance in the absence of antennas are compared and *** was found that each of these arrays has its advantages,but the two-dimensional low-redundancy array proposed in this paper performs best in overall *** has the shortest imaging calculation time among the array types and is highly robust when antennas are missing,making it the most suitable choice.

关键词： interferometers methods:observational techniques:interferometric

Turbulent Image Restoration in Atmosphere with Cyclopean Processing via Binocular Fusion

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Chinese Physics Letters 2024年第8期41卷 33-38页

作者： Han yao Jin-yan Lin Li-Bang Chen Yi-Kun Liu Jian-Ying Zhou State Key Laboratory of Optoelectronic Materials and Technologies School of PhysicsSun Yat-Sen UniversityGuangzhou 510275China Guangdong Provincial Key Laboratory of Quantum Metrology and Sensing School of Physics and AstronomySun Yat-Sen University(Zhuhai Campus)Zhuhai 519082China

The outstanding issue to overcoming atmospheric turbulence on distant imaging is a fundamental interest and technological *** propose a novel scenario and technique to restore the optical image in turbulent environmental by referring to Cyclopean image with binocular *** human visual intelligence,image distortion resulting from the turbulence is shown to be substantially *** simulation results taking into account of the atmospheric turbulence,optical image system,image sensors,display and binocular vision perception are presented to demonstrate the robustness of the image restoration,which is compared with a single channel planar optical imaging and *** involving binocular telescope,image recording and the stereo-image display is conducted and good agreement is obtained between the simulation with perceptive experience.A natural extension of the scenario is to enhance the capability of anti-vibration or anti-shaking for general optical imaging with Cyclopean image.

关键词： image turbulence shaking

A Dielectric Ink Combining Acrylate and Cyanate Moieties for Inkjet 3D Printing with Good Thermal Stability

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Chinese Journal of Polymer Science 2024年第6期42卷 766-774页

作者： Yi-Xuan Li Liang-Ying Wu yan yang yao-Zhong Lu Zhong-Ying Ji Yu-Xiong Guo Xiao-Long Wang Qiao-Sheng Pu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsLanzhou730000China Lanzhou Traditional Chinese Medicine Hospital of Orthopedics and Traumatology Lanzhou730000China Shandong Laboratory of Advanced Materials and Green Manufacturing at yantai Yantai Zhongke Research Institute of Advanced Materials and Green Chemical EngineeringYantai264006China

Inkjet 3D printing has potential in the additive manufacturing of electronic circuits and ***,inks that can be used for printing layers with T5%>300℃ or hardness>200 MPa have been rarely *** ester(CE)polymers have excellent thermal stability,high strength,and low shrinkage compared to other common dielectric inks for inkjet 3D printing,but cannot be quickly shaped by ultraviolet(UV)irradiation or thermal *** CEs with UV-curable monomers may be a possible way to accelerate crosslinking,but there are challenges from the adverse effects of the dilution of both *** this study,dielectric inks with acrylate and cyanate moieties were *** low viscosity and surface tension of the CE precursor(Bisphenol E cyanate ester)were combined with photocurable acrylate diluent monomers and cross-linker to realize an ink suitable for inkjet 3D *** internal dual three-dimensional cross-linked network structure resin was prepared by a combination of photocuring and thermal curing with T5%up to 326.69℃,hardness up to 431.84 MPa,dielectric constant of 2.70 at 8 GHz,and shrinkage of 1.64%.The developed dielectric inks can be applied to the 3D printing of printed circuit boards and other electronic devices that require dielectric properties.

关键词： Inkjet printing Cyanate ester resin 3D doubly cross-linked network Good thermal stability

Single-neuron projectome-guided analysis reveals the neural circuit mechanism underlying endogenous opioid antinociception

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National Science Review 2024年第7期11卷 106-125页

作者： yan-Nong Dou Yuan Liu Wen-qun Ding Qing Li Hua Zhou Ling Li Meng-Ting Zhao Zheng-Yi-Qi Li Jing Yuan Xiao-Fei Wang Wang-Yuan Zou Anan Li yan-Gang Sun Institute of Neuroscience Key Laboratory of Brain Cognition and Brain-Inspired Intelligence Technology CAS Center for Excellence in Brain Science&Intelligence Technology Chinese Academy of Sciences Department of Biology School of Life Science and TechnologyShanghaiTech University Lingang Laboratory University of Chinese Academy of Sciences Britton Chance Center for Biomedical Photonics Wuhan National Laboratory for OptoelectronicsMoE Key Laboratory for Biomedical Photonics Huazhong University of Science and Technology Department of Anesthesiology Xiangya HospitalCentral South University HUST-Suzhou Institute for Brainsmatics JITRI

Endogenous opioid antinociception is a self-regulatory mechanism that reduces chronic pain, but its underlying circuit mechanism remains largely unknown. Here, we showed that endogenous opioid antinociception required the activation of mu-opioid receptors（MORs） in GABAergic neurons of the central amygdala nucleus（CEA） in a persistent-hyperalgesia mouse model. Pharmacogenetic suppression of these CEAMORneurons, which mimics the effect of MOR activation, alleviated the persistent ***, single-neuron projection analysis revealed multiple projectome-based subtypes of CEAMORneurons, each innervating distinct target brain regions. We found that the suppression of axon branches projecting to the parabrachial nucleus（PB） of one subtype of CEAMORneurons alleviated persistent hyperalgesia, indicating a subtype-and axonal-branch-specific mechanism of action. Further electrophysiological analysis revealed that suppression of a distinct CEA-PB disinhibitory circuit controlled endogenous opioid antinociception. Thus, this study identified the central neural circuit that underlies endogenous opioid antinociception, providing new insight into the endogenous pain modulatory mechanisms.

关键词： endogenous opioid antinociception mu-opioid receptors central amygdala nucleus parabrachial nucleus single-neuron projectome