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Ultra-wide dual-band Rydberg atomic receiver based on space division multiplexing radio-frequency chip modules

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Chip 2024年第2期3卷 53-61页

作者： Li-Hua Zhang bang Liu Zong-Kai Liu Zheng-Yuan Zhang Shi-Yao Shao Qi-Feng Wang Yu Ma Tian-Yu Han Guang-Can Guo Dong-Sheng Ding Bao-Sen Shi Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China

Detecting microwave signals over a wide frequency range is endowed with numerous advantages as it enables simultaneous transmission of a large amount of information and access to more spectrum *** capability is crucial for applications such as microwave communication,remote sensing and ***,conventional microwave receiving systems are limited by amplifiers and band-pass filters that can only operate efficiently in a specific frequency ***,these systems can only process signals within a three-fold frequency range,which limits the data transfer bandwidth of the microwave communication *** novel atom-integrated microwave sensors,for example,radio-frequency(RF)chip–coupled Rydberg atomic receiver,provides opportunities for a large working bandwidth of microwave sensing at the atomic *** the current work,an ultrawide dual-band RF sensing scheme was demonstrated by spacedivision multiplexing two RF-chip-integrated atomic receiver *** system can simultaneously receive dual-band microwave signals that span a frequency range exceeding 6 octaves(300 MHz and 24 GHz).This work paves the way for multi-band microwave reception applications within an ultra-wide range by RF-chip-integrated Rydberg atomic sensor.

关键词： Dual-band Rydberg Radio-frequency chip Atomic receiver Space-division multiplexing

Capsosiphon fulvescens suppresses LPS-stimulated inflammatory responses by suppressing TLR4/NF-κB activation in RAW264.7 murine macrophages

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Asian Pacific Journal of Tropical Biomedicine 2024年第3期14卷 115-126页

作者： Seon Yeong Ji EunJin bang Hyun Hwangbo Min Yeong Kim Da Hye Kim Su Hyun Hong Shin-Hyung Park Chang-Young Kwon Gi-Young Kim You-Jin Jeon Suengmok Cho Yung Hyun Choi Department of Biochemistry Dong-eui University College of Korean MedicineBusan 47227Republic of Korea Basic Research Laboratory for the Regulation of Microplastic-Mediated Diseases and Anti-Aging Research Center Dong-eui UniversityBusan 47227Republic of Korea Department of Pathology Dong-eui University College of Korean MedicineBusan 47227Republic of Korea Department of Oriental Neuropsychiatry Dong-eui University College of Korean MedicineBusan 47227Republic of Korea Department of Marine Life Science Jeju National UniversityJeju 63243Republic of Korea Department of Food Science and Technology/Institute of Food Science Pukyong National UniversityBusan 48513Republic of Korea

Objective:To evaluate the effects of Capsosiphon fulvescens(***)ethanolic extract on inflammation in lipopolysaccharide(LPS)-induced RAW296.7 ***:The protective effects of *** ethanolic extract on LPS-induced inflammation in RAW264.7 macrophages were assessed using biochemical analysis,including enzyme-linked immunosorbent assay,quantitative reverse transcription-polymerase chain reaction,and Western blot *** examine reactive oxygen species(ROS)production,flow cytometry analysis,and immunofluorescence staining were ***,the modulatory effect of *** ethanolic extract on NF-κB activation was ***:*** ethanolic extract significantly attenuated LPS-induced levels of pro-inflammatory cytokines and notably reduced the secretion and mRNA levels of LPS-mediated matrix *** addition,*** ethanolic extract decreased ROS production and suppressed the TLR4/NF-κB signaling ***:*** ethanolic extract alleviates inflammation as well as oxidative stress by modulating the TLR4/NF-κB signaling in LPS-induced RAW264.7 *** can be used as a potential therapeutic agent to suppress inflammation and oxidative stress-associated diseases.

关键词： Capsosiphon fulvescens Inflammation Oxidative stress NF-κB Nrf2 TLR4

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北魏“终宁陵令印”补释

文博 2024年第1期 53-56,89页

作者：朱棒湖南师范大学历史文化学院湖南长沙410006

《秦汉南北朝官印征存》中著录了一枚北魏“终宁陵令印”。结合终宁陵设置的时间,可知这枚官印制作于公元499年至519年之间,是目前所见的北魏陵园官印孤品。自汉元帝永光四年(前40)诏令勿置陵邑后,陵邑制度遂见废弛。魏晋以降,帝后陵也... 详细信息

《秦汉南北朝官印征存》中著录了一枚北魏“终宁陵令印”。结合终宁陵设置的时间,可知这枚官印制作于公元499年至519年之间,是目前所见的北魏陵园官印孤品。自汉元帝永光四年(前40)诏令勿置陵邑后,陵邑制度遂见废弛。魏晋以降,帝后陵也仅置园邑而不再置陵邑,园邑归陵园令长统属,其邑户多者不过三五百户,规模远小于秦汉时期比于县的陵邑。

关键词：终宁陵北魏官印陵邑园邑

CFD modeling of gas−liquid flow phenomenon in lead smelting oxygen-enriched side-blown furnace

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Transactions of Nonferrous Metals Society of China 2024年第8期34卷 2671-2685页

作者： Zhen-yu ZHU Ping ZHOU Xing-bang WAN Zhuo CHEN Ling ZHANG Shi-bo KUANG School of Energy Science and Engineering Central South UniversityChangsha 410083China Changsha Design and Research Institute of Nonferrous Metallurgy Changsha 410019China ARC Research Hub for Computational Particle Technology Department of Chemical EngineeringMonash UniversityWellington RdClaytonVIC 3800Australia

A validated numerical model was established to simulate gas−liquid flow behaviors in the oxygen-enriched side-blown bath *** model included the slip velocity between phases and the gas thermal expansion *** modeling results were verified with theoretical correlations and experiments,and the nozzle-eroded states in practice were also involved in the *** comparison,it is confirmed that the thermal expansion effect influences the flow pattern significantly,which may lead to the backward motion of airflow and create a potential risk to production ***,the influences of air injection velocity and furnace width on airflow behavior were investigated to provide operating and design *** is found that the thin layer melt,which avoids high-rate oxygen airflow eroding nozzles,shrinks as the injection velocity increases,but safety can be guaranteed when the velocity ranges from 175 to 275 m/***,the isoline patterns and heights of thin layers change slightly when the furnace width increases from 2.2 to 2.8 m,indicating that the furnace width shows a limited influence on production safety.

关键词： multiphase flow horizontal gas injection backward motion of airflow gas thermal expansion side-blown furnace lead smelting

Preliminary Application of High-Frequency Ultrasound in the Differentiation of Pemphigus and Bullous Pemphigoid:An Observational Study

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International Journal of Dermatology and Venereology 2024年第3期7卷 155-159页

作者： Yang-Ai Liu Rong Cao Mei-Hong Da Zheng-bang Dong Fei Wang Department of Dermatology Taizhou Central Hospital(Taizhou University Hospital)TaizhouZhejiang 318000China Department of Dermatology Children’s Hospital of Soochow UniversitySuzhouJiangsu 215025China Department of Dermatology Zhongda HospitalSoutheast UniversityNanjingJiangsu 210009China

Objective:Ultrasonography is a diagnostic imaging technique used to visualize subcutaneous body structures for identification of possible *** this study,we aimed to explore the clinical significance of high-frequency ultrasound in differentiating the location of blisters between pemphigus and bullous ***:Eighteen patients were recruited in Department of Dermatology,Zhongda Hospital from 2020 to 2021 and divided into a pemphigus group(n=8)and a bullous pemphigoid group(n=10)according to the diagnostic criteria for *** images were collected using a 50-MHz high-frequency ultrasound *** indexes of ultrasonic evaluation were the layer(epidermis or dermis),size,shape,internal echo,and boundary of the *** variables are expressed as n(%),and differences were compared using Fisher’s exact ***:The ultrasonographic images in the pemphigus group showed an intraepidermal semi-arc or irregular anechoic or hypoechoic *** inferior borders were situated above the characteristic thin linear hyperechoic bands of the epidermis.A linear hypoechoic band was present at the dermoepidermal junction in some *** the ultrasonographic images of the bullous pemphigoid group,the linear hyperechoic bands of the epidermis were continuous and *** oval fluid anechoic area(subepidermal blister)was present immediately below the *** location of the blisters in the ultrasonographic images was significantly different between the 2 groups(P<0.001).Conclusion:High-frequency ultrasound can be used as an auxiliary means to differentiate the location of blisters between pemphigus and bullous pemphigoid.

关键词： high-frequency ultrasound pemphigus bullous pemphigoid

Neuralgic amyotrophy with hourglass-like constrictions:A case report

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World Journal of Clinical Cases 2024年第34期12卷 6728-6735页

作者： Mi-Hyeon bang Ha-Lim Song Seok Hahn Wanil Kim Hwan-Kwon Do Department of Physical Medicine and Rehabilitation Haeundae Paik HospitalInje University College of MedicineBusan 48108South Korea Department of Radiology Haeundae Paik HospitalInje University College of MedicineBusan 48108South Korea Division of Biochemistry Department of Convergence Medical ScienceInstitute of Medical ScienceGyeongsang National University College of MedicineJinju 52727South Korea Department of Physical Medicine and Rehabilitation Dongnam Institute of Radiological and Medical SciencesBusan 46033South Korea

BACKGROUND Neuralgic amyotrophy(NA)is a rare disease with sudden upper limb pain followed by affected muscle *** most commonly affected area in NA is the upper part of the brachial plexus,and the paraspinal muscles are rarely affected(1.5%),making these cases difficult to distinguish from cervical *** SUMMARY A 76-year-old male presented to the emergency department with left hip pain *** undergoing left femoral neck fracture surgery,he experienced sudden left shoulder pain for 10 days with subsequent left arm *** spine computed tomography revealed mild right asymmetric intervertebral disc bulging with a decreased C5-6disc *** weeks later,an electrodiagnostic study confirmed brachial plexopathy findings involving the cervical *** resonance neurography was performed for a differential *** enhancement was identified at the upper trunk of the brachial plexus,including the C5 nerve root.A suprascapular nerve hourglass-like focal constriction(HLFC)was also identified,confirming *** being diagnosed with NA,the patient received 15 mg prednisolone,twice daily,for 3 *** therapy was initiated,including left arm strengthening exercises and electrical stimulation *** shoulder muscle strength significantly improved one CONCLUSION NA's unique features like HLFC and paraspinal involvement are crucial for accurate diagnosis,avoiding confusion with cervical radiculopathy.

关键词： Neuralgic amyotrophy Cervical radiculopathy Hourglass-like focal constriction Paraspinal muscle Magnetic resonance neurography Case report

数字经济缓解了中国经济增长的“结构性减速”吗——效率效应与结构效应

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山西财经大学学报 2024年第1期46卷 84-99页

作者：郑安邦冯华北京交通大学经济管理学院北京100044

以中国内地30个省份2011—2019年面板数据为样本,基于系统GMM模型研究中国经济增速减缓的结构性因素,以及数字经济对此的缓解效应。研究结果表明:产业结构服务化导致中国经济增速放缓,“结构性减速”观点成立;数字经济总体上能够缓解“... 详细信息

以中国内地30个省份2011—2019年面板数据为样本,基于系统GMM模型研究中国经济增速减缓的结构性因素,以及数字经济对此的缓解效应。研究结果表明:产业结构服务化导致中国经济增速放缓,“结构性减速”观点成立;数字经济总体上能够缓解“结构性减速”,一方面数字经济具有提振经济增速的效率效应,另一方面具有推动产业结构服务化进而降低增速的结构效应,但结构效应不足以抵消效率效应。

关键词：数字经济产业结构结构性减速移动数据流动经济增长

Design and prototyping of the readout electronics for the transition radiation detector in the high energy cosmic radiation detection facility

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Nuclear Science and Techniques 2024年第4期35卷 189-199页

作者： Jie-Yu Zhu Yang-Zhou Su Hai-Bo Yang Fen-Hua Lu Yan Yang Xi-Wen Liu Ping Wei Shu-Cai Wan Hao-Qing Xie Xian-Qin Li Cong Dai Hui-Jun Hu Hong-bang Liu Shu-Wen Tang Cheng-Xin Zhao Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Guangxi Key Laboratory for Relativistic Astrophysics School of Physical Science and TechnologyGuangxi UniversityNanning 530004China

The high energy cosmic-radiation detection(HERD)facility is planned to launch in 2027 and scheduled to be installed on the China Space *** serves as a dark matter particle detector,a cosmic ray instrument,and an observatory for high-energy gamma rays.A transition radiation detector placed on one of its lateral sides serves dual purpose,(ⅰ)calibrating HERD's electromagnetic calorimeter in the TeV energy range,and(ⅱ)serving as an independent detector for high-energy gamma *** this paper,the prototype readout electronics design of the transition radiation detector is demonstrated,which aims to accurately measure the charge of the anodes using the SAMPA application specific integrated circuit *** electronic performance of the prototype system is evaluated in terms of noise,linearity,and *** the presented design,each electronic channel can achieve a dynamic range of 0–100 fC,the RMS noise level not exceeding 0.15 fC,and the integral nonlinearity was<0.2%.To further verify the readout electronic performance,a joint test with the detector was carried out,and the results show that the prototype system can satisfy the requirements of the detector's scientific goals.

关键词： HERD Dark matter particle detection TRD Readout electronics SAMPA Data acquisition Performance test

韩国生活用纸零售市场:销售增长,零售商品牌强劲发展

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生活用纸 2024年第3期24卷 42-43页

作者： Chloe bang 欧睿国际

韩国生活用纸零售市场概况,韩国高通货膨胀率带来了各种成本上涨,包括物流、劳动力、石油和能源,韩元兑美元汇率在2022年下半年跌至逾13年来的低点,致使韩国主要的生活用纸生产企业在2022年至少提高产品价格一次,涨幅至少达7%。使得202... 详细信息

韩国生活用纸零售市场概况,韩国高通货膨胀率带来了各种成本上涨,包括物流、劳动力、石油和能源,韩元兑美元汇率在2022年下半年跌至逾13年来的低点,致使韩国主要的生活用纸生产企业在2022年至少提高产品价格一次,涨幅至少达7%。使得2022年韩国生活用纸零售额实现了5.2%的名义价值增长(包含通胀效应影响)。韩国2022年生活用纸零售量同比增长4%。由于该国人均生活用纸消费量尚未得到满足,预计韩国生活用纸新产品的推出将有利于实现长期增长。

关键词：零售市场美元汇率生活用纸成本上涨产品价格通胀效应通货膨胀率物流