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Double-passage mechanical cooling in a coupled optomechanical system

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Chinese Physics B 2019年第11期28卷 173-178页

作者： Qing-xia mu Chao Lang Wen-Zhao Zhang Mathematics and Physics Department North China Electric Power UniversityBeijing 102206China Beijing Computational Science Research Center(CSRC) Beijing 100193China

We consider a three-mode optomechanical system where two cavity modes are coupled to a common mechanical oscillator. We focus on the resolved sideband limit and illustrate the relation between the significant parameters of the system and the instantaneous-state mean phonon number of the oscillator cooled to the ground state, particularly at the early stage of the evolution. It is worth noting that the optical coupling sets up a correlation between the two cavity modes,which has significant effect on the cooling process. Using numerical solutions, we find that the inter-cavity coupling will decrease the cooling effect when both cavities have the same effective optomechanical coupling. However, when the effective optomechanical couplings are different, the cooling effect will be strongly improved by selecting appropriate range of inter-cavity coupling.

关键词： optomechanical system ground-state cooling quantum optics

Differential mRNA expression in peripheral blood is associated with oral squamous cell carcinoma:Recent advances and future challenges

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BIOCELL 2023年第7期47卷 1449-1458页

作者： xia mu YUBING HU DANDAN WU HONGYU YANG Department of Stomatology Zunyi Medical UniversityZunyi563000China Department of Oral and Maxillofacial Surgery Peking University Shenzhen Hospital Stomatology CenterShenzhen518000China Department of Nursing Henan UniversityKaifeng475000China

Oral squamous cell carcinoma(OSCC)is a malignant tumor triggered by the accumulation of multiple gene mutations in oral epithelial *** OSCC-related biomarkers have been reported in circulation in the peripheral blood that support the occurrence and development of *** advances in high-throughput and highly sensitive detection methods have overcome the limitation of the low concentration of most peripheral blood ***,blood biomarker detection has become an efficient screening tool for the early diagnosis of *** growing data available in public cancer and gene databases have provided new foundations for OSCC *** particular,the identification of OSCC biomarkers using bioinformatic tools has shed new light on the underlying mechanisms as well as on the genetic landscape of *** recently,mRNA targeting therapies have emerged as valuable anticancer treatment strategies,as they allow for the regulation of the expression of certain functional proteins to reverse genetic abnormalities or induce tissue ***,mRNA-targeting therapies can be used to regulate the expression of antigens,antibodies,or cellular receptors by immune ***,anti-cancer cellular immunotherapy carrying specific mRNAs has attracted significant attention in OSCC ***,we review the present knowledge on the role of peripheral blood mRNAs in the diagnosis,treatment,development,and prognosis of ***,we address future research prospects of mRNAs in the peripheral blood in OSCC and the opportunities and challenges that may arise in future clinical therapeutic applications.

关键词： Diagnosis mRNA therapy Peripheral blood biomarker

Retroperitoneal teratoma resection assisted by 3-dimensional visualization and virtual reality:A case report

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World Journal of Clinical Cases 2021年第4期9卷 935-942页

作者： Tao Liu Kun Chen Rong-mu xia Wen-Gang Li Department of Hepatobiliary Surgery Xiang’an HospitalXiamen UniversityXiamen 361102Fujian ProvinceChina Institute of Stem Cell and Regenerative Medicine School of MedicineXiamen UniversityXiamen 361102Fujian ProvinceChina Department of Hepatobiliary Surgery Xiang’an HospitalSchool of MedicineXiamen UniversityXiamen 361102Fujian ProvinceChina

BACKGROUND Primary retroperitoneal tumor is a rare type of tumor with insidious onset,large tumor size at the time of diagnosis,and often extensive involvement of surrounding tissues and blood vessels in the *** for primary retroperitoneal tumors is technically *** imaging evaluation is critical for the selection of the optimal surgical approach and can influence complete resection and recurrence ***-dimensional model reconstruction combined with virtual reality is useful for preoperative *** SUMMARY A 17-year-old female patient was admitted for abdominal pain lasting for half a year that had been worsening for half a *** enhanced helical computed tomography revealed a retroperitoneal space-occupying lesion about 11.3 cm×9.1 cm in size,with well-defined borders in the upper left quadrant of the *** lesion compressed the left renal artery and vein resulting in vascular displacement and deformation.A multidisciplinary team decided on the optimal treatment *** three-dimensional visualization and virtual reality technology were used to assess and simulate the surgical ***,retroperitoneal tumor resection along with renal artery reconstruction was decided as the *** resection of the retroperitoneal tumor was *** blood flow was established after renal artery *** tumor was diagnosed as mature cystic teratoma(retroperitoneal tumor)by postoperative pathologic *** patient,who recovered well,was discharged after 2 wk and maintains regular *** A combination of three-dimensional reconstruction and virtual reality technology before surgery improves the rate of complete resection of retroperitoneal teratoma.

关键词： Three-dimensional reconstruction Virtual reality Renal artery reconstruction Retroperitoneal teratoma Surgery Case report

Familial left cervical neurofibromatosis 1 with scoliosis:A case report

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World Journal of Clinical Cases 2021年第29期9卷 8839-8845页

作者： xia mu Han-Yu Zhang Yue-Hong Shen Hong-Yu Yang School of Stomatology Zunyi Medical UniversityZunyi 563000Guizhou ProvinceChina Department of Stomatology Peking University Shenzhen HospitalShenzhen 518036Guangdong ProvinceChina Department of Oral and Maxillofacial Surgery Peking University Shenzhen HospitalShenzhen 518036Guangdong ProvinceChina

BACKGROUND Neurofibromatosis type 1(NF1)is an inherited autosomal dominant disorder affecting many parts of the body with caféau lait spots,skeletal deformity,and scoliosis.A familial case of NF1 with scoliosis and a painless mass had not yet been *** SUMMARY We describe the case of a 15-year-old male patient with a painless lump on the left side of his neck for 10 years and *** right shoulder was about 5 cm lower than the left,the left side of his face was deformed,and the left submandibular skin was *** folding and drooping were obvious and movement was *** tomography revealed the involvement of the neck,upper chest wall,and surrounding left shoulder,accompanied by bone changes and *** evaluation showed subepidermal pale blue mucoid degeneration,fibrous fusiform cells in the dermis in a fascicular,woven *** mother had the same medical *** diagnosis was neurofibromatosis of the left *** parts of the tumor tissue were serially resected during several *** months after surgery,there was a slight tendency to *** This case of slow-progressing NF1 highlights the importance of early diagnosis and treatment to reduce its impact on the patient’s growth and development.

关键词： Neurofibromatosis type 1 Scoliosis Neck mass Arteriography Embolization Case report

Assessment of land degradation in Inner Mongolia between 2000 and 2020 based on remote sensing data

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Geography and Sustainability 2023年第2期4卷 100-111页

作者： Linlin Zhao Kun Jia Xin Liu Jie Li mu xia State Key Laboratory of Remote Sensing Science Faculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China Beijing Engineering Research Center for Global Land Remote Sensing Products Faculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China Geological Survey of Inner Mongolia HohhotInner Mongolia 010020China

Achieving land degradation neutrality(LDN)worldwide is a significant target of the Sustainable Development Goal(SDG15.3).Inner Mongolia,as a typical dryland region in northern China,has carried out several large-scale ecological restoration programs to combat land ***,there is a lack of comprehensive assess-ment of its land degradation situation after ecological programs implementation,which is of great significance to supporting SDG15.3 in *** study analyzed the land degradation situation using the improved SDG15.3.1 calculation framework based on fine resolution data in Inner Mongolia from 2000 to 2020,and finally compre-hensively evaluated the land status of the whole region and those subject to ecological *** results show that net land restoration proportion of various ecological project regions and whole region continues to *** scope of the Grain for Green Program(GGP)had the largest proportion of net land restoration while the Natural Reserve Program(NRP)had the lowest proportion from 2000 to *** net land restoration area of Inner Mongolia during 2000-2010 and 2010-2020 was 35,800 km 2 and 65,300 km 2,***,Inner Mongolia has achieved statistically zero growth in land degradation under the governance of ecological restora-tion ***,reasonable planning,well monitoring,and timely assessment of ecological restoration programs are crucial to support SDG15.3.

关键词： SDG15.3 Land degradation neutrality(LDN) Land degradation Ecological programs Inner Mongolia

Dynamic Resource Pricing and Allocation in multilayer Satellite Network

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Computers, Materials & Continua 2021年第12期69卷 3619-3628页

作者： Yuan Li Jiaxuan Xie mu xia Qianqian Li Meng Li Lei Guo Zhen Zhang Tsinghua University Beijing100084China School of Automation Northwestern Polytechnical UniversityXi’an710129China University of Science and Technology Beijing Beijing100083China Beijing University of Posts and Telecommunications Beijing100876China Systems Engineering Institute AMS Beijing100071China Audio Analytic 2 QuaysideCambridgeCB58ABUK Beijing Commsat Technology Development Co. Ltd.Beijing100089China

The goal of delivering high-quality service has spurred research of 6G satellite communication *** limited resource-allocation problem has been addressed by next-generation satellite communication networks,especially multilayer networks with multiple low-Earth-orbit(LEO)and nonlow-Earth-orbit(NLEO)*** this study,the resource-allocation problem of a multilayer satellite network consisting of one NLEO and multiple LEO satellites is *** NLEO satellite is the authorized user of spectrum resources and the LEO satellites are unauthorized *** resource allocation and dynamic pricing problems are combined,and a dynamic gamebased resource pricing and allocation model is proposed to maximize the market advantage of LEO satellites and reduce interference between LEO and NLEO *** the proposed model,the resource price is formulated as the dynamic state of the LEO satellites,using the resource allocation strategy as the control *** on the proposed dynamic game model,an openloop Nash equilibrium is analyzed,and an algorithm is proposed for the resource pricing and allocation *** simulations validate the model and algorithm.

关键词： Resource pricing resource allocation satellite network LEO dynamic game Nash equilibrium

An Efficient Synthetic Method of Nordihydroguaiaretic Acid (NDGA)

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Chinese Chemical Letters 2003年第4期14卷 359-360页

作者： Ya mu xia xiao Ping CAO Kun PENG Xin Feng REN Xin Fu PAN Department of Chemistry and National Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000

Nordihydroguaiaretic acid (NDGA) has been synthesized in nine steps from piperonal using Stobbe condensation as the key step with high yield. By this approach, five relative natural products were obtained.

关键词： Nordihydroguaiaretic acid piperonal Stobbe condensation.

Traveling in Xinjiang by Singing New Highlights of the Integrated Development of Culture and Tburism

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China & The World Cultural Exchange 2022年第3期88卷 33-35页

作者： xia mu 不详

In 2021,the Department of Culture and Tourism of Xinjiang Uygur Autonomous Region vigorously promoted the development of"music plus tourism".It made use of song composition as an important step for strengthening the influence of tourism,and launched a new brand of the integration of culture and tourism,i.e.,"Traveling in Xinjiang by Singing",which took music as the engine to open a new path for tourism promotion.

关键词： Xinjiang tourism promotion

First Enantioselective Synthesis of Daphneticin

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Chinese Chemical Letters 2003年第6期14卷 551-554页

作者： Xin Feng REN Kun PENG xiao Chuan CHEN Xin Gang XIE Ya mu xia Xin Fu PAN Department of Chemistry National Laboratory of Applied Organic ChemistryLanzhou UniversityLanzhou 730000

An enantioselective total synthesis of chiral daphneticin is reported firstly.

关键词： Synthesis enantioselective coumarinolignoids daphneticin.