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Exceptional points enhance sensing in silicon micromechanical resonators

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Microsystems & Nanoengineering 2024年第1期10卷 17-25页

作者： Man-Na Zhang Lei dong Li-feng Wang Qing-An huang Key Laboratory of MEMS of the Ministry of Education Southeast UniversityNanjing 210096China

Exceptional points(EPs)have recently emerged as a new method for engineering the response of open physical systems,that is,systems that interact with the *** systems at the EPs exhibit a strong response to a small ***,we show a method by which the sensitivity of silicon resonant sensors can be enhanced when operated at *** our experiments,we use a pair of mechanically coupled silicon micromechanical resonators constituting a parity-time(PT)-symmetric *** perturbations introduced on the mechanically coupled spring cause the frequency to split from the EPs into the PT-symmetric regime without broadening the two spectrum linewidths,and this frequency splitting scales with the square root of the perturbation *** overall signal-tonoise ratio is still greatly enhanced,although the measured noise spectral density of the EP sensing scheme has a slight increase comparable to the traditional *** results pave the way for resonant sensors with ultrahigh sensitivity.

关键词： resonant symmetric points

Multi-systemic melioidosis in a patient with type 2 diabetes in nonendemic areas:A case report and review of literature

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World Journal of Clinical Cases 2024年第9期12卷 1669-1676页

作者： Huan-Yu Ni Ying Zhang dong-Hai huang feng Zhou Department of Endocrinology Puren HospitalWuhan University of Science and TechnologyWuhan 430080Hubei ProvinceChina School of Medicine Wuhan University of Science and TechnologyWuhan 430080Hubei ProvinceChina Department of Critical Care Medicine Zhongnan Hospital of Wuhan UniversityWuhan 430071Hubei ProvinceChina Department of Rheumatology and Immunology Puren HospitalWuhan University of Science and TechnologyWuhan 430080Hubei ProvinceChina

BACKGROUND Melioidosis,an infectious disease caused by Burkholderia pseudomallei(***),occurs endemically in Southeast Asia and Northern Australia and is a serious opportunistic infection associated with a high mortality *** SUMMARY A 58-year-old woman presented with scattered erythema on the skin of her limbs,followed by fever and *** was isolated successively from the patient’s urine,blood,and *** resonance imaging showed abscess formation involving the right forehead and the right frontal ***,abscess resection and drainage were *** patient showed no signs of relapse after 4 months of follow-up visits *** We present here a unique case of multi-systemic melioidosis that occurs in nonendemic regions in a patient who had no recent travel ***,it is critical to enhance awareness of melioidosis in non-endemic regions.

关键词： Melioidosis Burkholderia pseudomallei Endemic Diabetes Case report

Quantum phase transition of the Jaynes-Cummings model

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Science China(Physics,Mechanics & Astronomy) 2024年第1期67卷 1-9页

作者： Cheng Liu Jin-feng huang Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Key Laboratory for Matter Microstructure and Function of Hunan ProvinceDepartment of Physics and Synergetic Innovation Center for Quantum Effects and ApplicationsInstitute of Interdisciplinary StudiesHunan Normal UniversityChangsha 410081China

Herein,we propose an experimentally feasible scheme to show the quantum phase transition of the Jaynes-Cummings(JC)model by modulating the transition frequency of a two-level system in a quantum Rabi model with strong *** tuning the modulation frequency and amplitude,the ratio of the effective coupling strength of the rotating terms to the effective cavity(atomic transition)frequency can enter the deep-strong coupling regime,while the counter-rotating terms can be ***,a deep-strong JC model is *** ratio of the coupling strength to resonance frequencies in the deep-strong JC model is two orders of magnitude larger than the corresponding ratio in the original quantum Rabi *** scheme can be employed in atom-cavity resonance and off-resonance cases,and it is valid over a broad *** nonzero average cavity photons of the ground state indicate the emergence of a quantum phase ***,we demonstrate the dependence of the phase diagram on the atom-cavity detuning and modulation *** the parameters used in our scheme are within the reach of current experimental *** scheme provides a new mechanism for investigating the critical phenomena of finite-sized systems without requiring classical field limits,thereby opening a door for studying fundamental quantum phenomena occurring in the ultrastrong and even deep-strong coupling regimes.

关键词： Jaynes-Cummings model quantum phase transition frequency modulation

Assessment of cheese sign and its association with vascular risk factors:Data from PUMCH dementia cohort

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Chinese Medical Journal 2024年第7期137卷 830-836页

作者： Xinying huang Bo Hou Jie Wang Jie Li Li Shang Chenhui Mao Liling dong Caiyan Liu feng feng Jing Gao Bin Peng Department of Neurology State Key Laboratory of Complex Severe and Rare DiseasePeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100730China Department of Radiology Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China

Background:In the clinic,practitioners encounter many patients with an abnormal pattern of dense punctate magnetic resonance imaging(MRI)signal in the basal ganglia,a phenomenon known as"cheese sign".This sign is reported as common in cerebrovascular diseases,dementia,and old ***,cheese sign has been speculated to consist of dense perivascular space(PVS).This study aimed to assess the lesion types of cheese sign and analyze the correlation between this sign and vascular disease risk ***:A total of 812 patients from Peking Union Medical College Hospital(PUMCH)dementia cohort were *** analyzed the relationship between cheese sign and vascular *** assessing cheese sign and defining its degree,the abnormal punctate signals were classified into basal ganglia hyperintensity(BGH),PVS,lacunae/infarctions and microbleeds,and counted *** type of lesion was rated on a four-level scale,and then the sum was calculated;this total was defined as the cheese sign *** and Age-Related White Matter Changes(ARWMC)scores were used to evaluate the paraventricular,deep,and subcortical gray/white matter ***:A total of 118 patients(14.5%)in this dementia cohort were found to have cheese ***(odds ratio[OR]:1.090,95%confidence interval[CI]:1.064-1.120,P<0.001),hypertension(OR:1.828,95%CI:1.123-2.983,P=0.014),and stroke(OR:1.901,95%CI:1.092-3.259,P=0.025)were risk factors for cheese *** was no significant relationship between diabetes,hyperlipidemia,and cheese *** main components of cheese sign were BGH,PVS,and lacunae/*** proportion of PVS increased with cheese sign ***:The risk factors for cheese sign were hypertension,age,and *** sign consists of BGH,PVS,and lacunae/infarction.

关键词： Dementia Cerebrovascular disease Cheese sign Dense punctate lesions Basal ganglia Risk factor White matter

Subsoil tillage enhances wheat productivity,soil organic carbon and available nutrient status in dryland fields

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Journal of Integrative Agriculture 2024年第1期23卷 251-266页

作者： Qiuyan Yan Linjia Wu Fei dong Shuangdui Yan feng Li Yaqin Jia Jiancheng Zhang Ruifu Zhang Xiao huang Institute of Wheat Research Shanxi Agricultural UniversityLinfen 041000China State Key Laboratory of Sustainable Dryland Agriculture(in preparation) Shanxi Agricultural UniversityTaiyuan 030031China College of Resources and Environment Shanxi Agricultural UniversityTaigu 030801China Jiangsu Key Lab and Engineering Center for Solid Organic Waste Utilization National Engineering Research Center for Organicbased FertilizersNanjing Agricultural UniversityNanjing 210095China

Tillage practices during the fallow period benefit water storage and yield in dryland wheat ***,there is currently no clarity on the responses of soil organic carbon(SOC),total nitrogen(TN),and available nutrients to tillage practices within the growing *** study evaluated the effects of three tillage practices(NT,no tillage;SS,subsoil tillage;DT,deep tillage)over five years on soil physicochemical *** samples at harvest stage from the fifth year were analyzed to determine the soil aggregate and aggregate-associated C and N *** results indicated that SS and DT improved grain yield,straw biomass and straw carbon return of wheat compared with *** contrast to DT and NT,SS favored SOC and TN concentrations and stocks by increasing the soil organic carbon sequestration rate(SOCSR)and soil nitrogen sequestration rate(TNSR)in the 0-40 cm *** SOC levels under SS and NT were associated with greater aggregate-associated C fractions,while TN was positively associated with soluble organic nitrogen(SON).Compared with DT,the NT and SS treatments improved soil available nutrients in the 0-20 cm *** findings suggest that SS is an excellent practice for increasing soil carbon,nitrogen and nutrient availability in dryland wheat fields in North China.

关键词： tillage dryland wheat fields soil aggregate size soil nutrients soil carbon and nitrogen fractions

Evaluation of Auto-Ignition Characteristics of Diesel Surrogate Fuels with the Same Derived Cetane Numbers at Changed Thermodynamic Environments

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Journal of Thermal Science 2024年第4期33卷 1590-1606页

作者： ZHANG Cong GUAN Yuanhang huang Zhen HAN dong Key Laboratory for Power Machinery and Engineering Ministry of EducationShanghai Jiao Tong UniversityShanghai200240China College of Smart Energy Shanghai Jiao Tong UniversityShanghai200240China Shanghai Non-carbon Energy Conversion and Utilization Institute Shanghai200240China

The ignition tendency of diesel fuels is highly sensitive to ambient conditions and fuel *** this study,the ignition characteristics of different diesel surrogate fuels with the same derived cetane numbers(DCN)were measured and compared in varied thermodynamic and oxidizing *** combustion pressures,heat release rates,ignition delays,and combustion delays of the test fuels were *** experimental results showed that the diesel surrogate fuels with the same DCNs exhibit similar ignition propensity at standard DCN test ***,for the test conditions of high cetane fuels,high ambient temperatures,and suficient oxygen concentrations,surrogate fuels with the same DCN have similar ignition behaviors,and using the DCN to evaluate fuel ignition tendency is ***,for the test conditions of low cetane fuels,low ambient temperatures,and reduced oxygen concentrations,different ignition behaviors are observed for the surrogate fuels with the same DCN,so at these conditions using DCN as the evaluation index for fuel ignition tendency may lead to higher uncertainty.

关键词： diesel fuels surrogate fuels derived cetane numbers constant volume combustion chamber

Method for triangular fuzzy multiple attribute decision making based on two-dimensional density operator method

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Journal of Systems Engineering and Electronics 2024年第1期35卷 178-185页

作者： LIN Youliang LI Wu LIU Gang huang dong School of Economics and Management Hunan Institute of Science and TechnologyYueyang 414000China Hunan Vocational College for Nationalities Yueyang 414000China School of Information Science and Engineering Hunan Institute of Science and TechnologyYueyang 414000China

Aiming at the triangular fuzzy(TF)multi-attribute decision making(MADM)problem with a preference for the distribution density of attribute(DDA),a decision making method with TF number two-dimensional density(TFTD)operator is proposed based on the density operator theory for the decision maker(DM).Firstly,a simple TF vector clustering method is proposed,which considers the feature of TF number and the geometric distance of ***,the least deviation sum of squares method is used in the program model to obtain the density weight ***,two TFTD operators are defined,and the MADM method based on the TFTD operator is ***,a numerical example is given to illustrate the superiority of this method,which can not only solve the TF MADM problem with a preference for the DDA but also help the DM make an overall comparison.

关键词： fuzzy decision making clustering density operator multi-attribute decision making(MADM)

Z-scheme Bi_(4)O_(5)Br_(2)/NH_(2)-MIL-125(Ti)heterojunctions enable exceptional visible photocatalytic degradation of organic pollutant

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Rare Metals 2024年第7期43卷 3161-3172页

作者： feng huang Muhammad Humayun Gang Li Ting-Ting Fan Wen-Lin Wang Yu-Lin Cao Anton Nikiforov Chun-dong Wang Jing Wang Key Laboratory of Analytical Science and Technology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of EducationState Key Laboratory of New Pharmaceutical Preparations and ExcipientsCollege of Chemistry and Materials ScienceHebei UniversityBaoding071002China Energy Water and Environment LabCollege of Humanities and SciencesPrince Sultan University11586 RiyadhSaudi Arabia Baoding Green Yijia Environmental Protection Technology Ltd Baoding 071051China Physics Laboratory Industrial Training CenterShenzhen Polytechnic UniversityShenzhen 518055China Department of Applied Physics Ghent University9000 GhentBelgium School of Integrated Circuits Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074China

One key strategy to enhance photocatalytic performance is to improve the transfer and separation efficiency of photogenerated carriers by building optimized ***,novel Bi_(4)O_5Br_(2)/NH_(2)-MIL-125(Ti)Z-scheme heterojunctions are fabricated and used as photocatalysts for organic pollutant *** NH_(2)-MIL-125(Ti)nanosheets are exfoliated via a self-developed alkali solution stripping approach and then uniformly decorated on Bi_(4)O_(5)Br_(2).The as-prepared Bi_(4)O_(5)Br_(2)/NH_(2)-MIL-125(Ti)presents more than 90%degradation of various pollutants,outperforming the counterpart individual *** various characterization results suggest that the enhanced degradation rate is due to the more intimate face-to-face interfacial contact of the lamellar Z-scheme heterojunction materials,in which the migration path of carriers from the material's interior to the surface can be reduced,in turn enhancing migration efficiency and separation capability significantly.A possible photocatalytic reaction mechanism is proposed based on the photoelectric behaviors,radical trapping experiments and liquid chromatography mass spectrometry *** work promotes the development of new photocatalytic materials for heterojunctions with face-to-face interfacial contacts,as well as the effective purification of wastewater in environmental remediation.

关键词： Z-scheme heterojunctions Photocatalysis Alkaline solution stripping Bi_(4)O_(5)Br_(2) NH_(2)-MIL-125(Ti)

Effect of magnetic resonance imaging in liver metastases

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World Journal of Gastroenterology 2024年第1期30卷 112-114页

作者： Xing-Liang huang Xiao-dong Wang Zhao-Miao Gong Yan-feng Zheng Jing-Xin Mao Department of Science and Education Dianjiang People's Hospital of ChongqingChongqing 408399China Department of Science and Industry Chongqing Medical and Pharmaceutical CollegeChongqing 400030China

This letter to the editor is a commentary on a study titled"Liver metastases:The role of magnetic resonance imaging."Exploring a noninvasive imaging evaluation system for the biological behavior of hepatocellular carcinoma(HCC)is the key to achieving precise diagnosis and treatment and improving *** review summarizes the role of magnetic resonance imaging in the detection and evaluation of liver metastases,describes its main imaging features,and focuses on the added value of the latest imaging tools(such as T1 weighted in phase imaging,T1 weighted out of phase imaging;diffusion-weighted imaging,T2 weighted imaging).In this study,I investigated the necessity and benefits of gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid for HCC diagnostic testing and prognostic evaluation.

关键词： Liver metastases Magnetic resonance imaging Liver-specific contrast agents Gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid Hepatocellular carcinoma Hepatobiliary contrast agents