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Semi-Supervised Learning with Generative Adversarial Networks on Digital Signal Modulation Classification

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Computers, Materials & Continua 2018年第5期55卷 243-254页

作者： ya tu Yun Lin Jin Wang Jeong-Uk Kim College of Information and Communication Engineering Harbin Engineering UniversityHarbin 150001China School of Computer&Communication Engineering Changsha University of Science&TechnologyChangsha 410114China School of Information Engineering Yangzhou UniversityYangzhou 225009China Department of Energy Grid Sangmyung UniversitySeoulKorea

Deep Learning(DL)is such a powerful tool that we have seen tremendous success in areas such as Computer Vision,Speech Recognition,and Natural Language *** Automated Modulation Classification(AMC)is an important part in Cognitive Radio Networks,we try to explore its potential in solving signal modulation recognition *** cannot be overlooked that DL model is a complex model,thus making them prone to *** model requires many training data to combat with over-fitting,but adding high quality labels to training data manually is not always cheap and accessible,especially in real-time system,which may counter unprecedented data in ***-supervised Learning is a way to exploit unlabeled data effectively to reduce over-fitting in *** this paper,we extend Generative Adversarial Networks(GANs)to the semi-supervised learning will show it is a method can be used to create a more dataefficient classifier.

关键词： Deep Learning automated modulation classification semi-supervised learning generative adversarial networks

Electroacupuncture regulates the stress-injury-repair chain of events after cerebral ischemia/reperfusion injury

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Neural Regeneration Research 2017年第6期12卷 925-930页

作者： Peng Shi Lin-lin Sun Yi-shuo Lee ya tu School of Acupuncture-Moxibustion and tuina Beijing University of Chinese Medicine

Inflammation after stroke is the main cause of cerebral ischemia/reperfusion injury. Cascading events after injury can lead to cell death. Heat shock protein 70 and other endogenous injury-signaling molecules are released by damaged cells, which can lead to systemic stress reactions. Protecting the brain through repair begins with the stress-injury-repair signaling chain. This study aimed to verify whether acupuncture acts through this chain to facilitate effective treatment of ischemic stroke. Rat models of cerebral ischemia/reperfusion injury were established by Zea Longa＇s method, and injury sites were identified by assessing neurological function, 2,3,5-triphenyltetrazolium chloride staining, and hematoxylin-eosin staining. Electroacupuncture at acupoints Baihui（DU20） and Zusanli（ST36） was performed in the model rats with dilatational waves, delivered for 20 minutes a day at 2–100 Hz and an amplitude of 2 m A. We analyzed the blood serum from the rats and found that inflammatory cytokines affected the levels of adrenotrophin and heat shock protein 70, each of which followed a similar bimodal curve. Specifically, electroacupuncture lowered the peak levels of adrenocorticotrophic hormone and heat shock protein 70. Thus, electroacupuncture was able to inhibit excessive stress, reduce inflammation, and promote the repair of neurons, which facilitated healing of ischemic stroke.

关键词： repair acupuncture hematoxylin eosin minutes endogenous Acupuncture neurological inflammation staining

Projected total energy surface description for axial shape asymmetry in ^(172)W

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Science China(Physics,Mechanics & Astronomy) 2014年第11期57卷 2054-2059页

作者： tu ya CHEN YongShou GAO ZaoChun YU ShaoYing LIU Ling College of Physics Science and Technology ShenYang Normal University China Institute of Atomic Energy School of Science Huzhou Teachers College

The projected total energy surface(PTES)approach has been developed based on the triaxial projected shell model(TPSM)hybridized with the macroscopic–microscopic *** total energy of an atomic nucleus is decomposed into macroscopic,microscopic and rotational *** macroscopic and microscopic components are described with the liquid drop model and Strutinsky method,respectively,and the rotational energy is given by the TPSM,the term beyond the mean *** test theory,the PTES calculations have been carried out for the yrast states of the well deformed rare earth nucleus172W,and the theoretical results are in good agreement with the experimental *** using the equilibrium quardrupole deformations(ε2andγ)determined by the PTES,the calculation of the transition quardrupole moment(Qt)in function of spin also reproduces the experimental data.A comparison between the PTES and TRS methods has been made for theoretical and application uses.

关键词： triaxial nucleus deformed rotational projected microscopic asymmetry macroscopic pairing nuclei

Shell Model for Elastic and Thermodynamic Properties of Gallium Nitride with Hexagonal Wurtzite Structure

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Communications in Theoretical Physics 2008年第12期50卷 1443-1448页

作者： CHENG yan tu ya-Jing ZENG Zhao-Yi GOU Qing-Quan College of Physical Science and Technology Sichuan University Chengdu 610064 China Institute of Atomic and Molecular Physics Sichuan University Chengdu 610065 China School of Computer Science and Engineering Beijing University of Aeronautics and Astronautics Beijing 100083 China

Shell model molecular dynamic simulation with interatomic pair potential is utilized to investigate the elastic and thermodynamic properties of gallium nitride with hexagonal wurtzite structure （w-GaN） at high pressure. The calculated elastic constants Cij at zero pressure and 300 K agree well with the experimental data and other calculated values. Meanwhile, the dependences of the relative volume V/Vo, elastic constants Cij, entropy S, enthalpy H, and heat capacities Cv and Up on pressure are successfully obtained. From the elastic constants obtained, we also calculate the shear modulus G, bulk modulus B, Young＇s modulus E, Poisson＇s ratio v, Debye temperature ΘD, and shear anisotropic factor Ashear on pressures.

关键词： shell model molecular dynamics elastic properties thermodynamic properties GaN

Large-scale real-world radio signal recognition with deep learning

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Chinese Journal of Aeronautics 2022年第9期35卷 35-48页

作者： ya tu Yun LIN Haoran ZHA Ju ZHANG Yu WANG Guan GUI Shiwen MAO College of Information and Communication Engineering Harbin Engineering UniversityHarbin 150001China College of Electronic Science and Engineering National University of Defense TechnologyChangsha 410073China College of Telecommunications and Information Engineering Nanjing University of Posts and TelecommunicationsNanjing 210003China Department of Electrical and Computer Engineering Auburn UniversityAuburn 36849USA

In the past ten years, many high-quality datasets have been released to support the rapid development of deep learning in the fields of computer vision, voice, and natural language processing. Nowadays, deep learning has become a key research component of the Sixth-Generation wireless systems(6G) with numerous regulatory and defense applications. In order to facilitate the application of deep learning in radio signal recognition, in this work, a large-scale real-world radio signal dataset is created based on a special aeronautical monitoring system-Automatic Dependent Surveillance-Broadcast(ADS-B). This paper makes two main contributions. First, an automatic data collection and labeling system is designed to capture over-the-air ADS-B signals in the open and real-world scenario without human participation. Through data cleaning and sorting, a high-quality dataset of ADS-B signals is created for radio signal recognition. Second, we conduct an in-depth study on the performance of deep learning models using the new dataset, as well as comparison with a recognition benchmark using machine learning and deep learning ***, we conclude this paper with a discussion of open problems in this area.

关键词： Signal recognition Radio signal dataset Automatic Dependent Surveillance-Broadcast(ADS-B) Deep learning Recognition benchmark

Carbamylated Erythropoietin Alleviates Kidney Damage in Diabetic Rats by Suppressing Oxidative Stress

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Current Medical Science 2021年第3期41卷 513-521页

作者： Jian-zhong DANG ya-fang tu Juan WANG Ying-jie yaNG Department of Geriatrics Rerunin Hospital of Wuhan UniversityWuhan 430060China Department of Nephrology Renmin Hospital of Wuhan UniversityWuhan 430060China

The oxidative stress response plays an important role in the occurrence and development of diabetic kidney disease(DKD).It has become a new treatment target for *** the current study,the effects of carbamylated erythropoietin(CEPO)on renal oxidative stress and damage in diabetic rats were *** Sprague Dawley rats were intraperitoneally administered with 60 mg/kg streptozotocin to establish the diabetes *** diabetic rats were randomly allocated into 4 groups(n=6 each):diabetes model group(DM group),DM+CEPO treatment group(DC group),DM+CEPO+EPO receptor(EPOR)blocking peptide treatment group(DCEB group),and DM+CEPO+CD131 blocking peptide treatment group(DCCB group).Meanwhile,a normal control group(NC group,n=6)was set *** tissues and blood samples were obtained for evaluation of oxidative stress and renal *** results showed that diabetic rats exhibited increased oxidative stress in the kidney and early pathological changes associated with *** with CEPO reduced oxidative stress and attenuated renal ***,diabetic rats treated with the combination of CEPO and EPOR blocking peptide or CD131 blocking peptide showed increased oxidative stress and reduced renal function when compared with CEPO treatment alone *** results suggested that CEPO can protect against kidney damage in DKD by inhibiting oxidative stress injury via EPOR-CD131 heterodimers.

关键词： diabetic kidney disease oxidative stress carbamylated erythropoietin erythropoietin receptor

Effect of electroacupuncture on E-prostanoid 2 expression in the spinal cord in rats with neuropathic pain

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Journal of Traditional Chinese Medicine 2017年第4期37卷 496-502页

作者： Ji Lili Jiang Huili Ren Xiujun Guo Mengwei Ge Dongyu Li Genmao tu ya School of Acupuncture-moxibustion and tuina Beijing University of Chinese Medicine Beijing 100029 China School of Basic Medicine Beijing University of Chinese Medicine Beijing 100029 China

OBJECTIVE: To observe the effect of electroacupuncture(EA) treatment on the expression of E-prostanoid 2(EP2) in the spinal cord using a rat model of neuropathic pain, and to examine the effect of different acupuncture ***: Rats were randomly divided into six groups: a normal group, model group, sham group,EA 1 group(distal-proximal acupoints), EA 2 group(proximal acupoints), and EA 3 group(distal acupoints). Rats in the EA groups were treated for20 min, once daily for 7 days. The mechanical withdrawal threshold was evaluated at 1 day preoperatively and at 3, 5, and 7 days postoperatively. At 7days postoperatively, hematoxylin-eosin(HE) staining was used to investigate spinal morphological changes. Spinal EP2 messenger ribonucleic acid(m RNA) was detected using reverse-transcription polymerase chain ***: After the EA treatment, the mechanical withdrawal threshold was up-regulated compared with the model group(P 0.05). The EA 1and EA 2 groups showed a larger treatment effect than the EA 3 group. The HE results showed that EA can improve spinal histomorphology induced by neuropathic ***: EA had a strong analgesic and anti-inflammatory effect. The therapeutic effect of EA on the down-regulation of spinal EP2 m RNA expression may be greater when either local acupoints or a distal-proximal combination of acupoints are used than when distal points are used.

关键词： Neuropathic pain Electroacupuncture Nucleus pulposus E-prostanoid 2 Spinal cord

Neurotransmitter systems in mouse airways

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中国药理学与毒理学杂志 2017年第10期31卷 1015-1016页

作者： Peter W ABEL Cameron M KIEFFER ya-ping tu Department of Pharmacology Creighton University School of Medicine

OBJECTIVE The objective of this study was to characterize the neurotransmitter systems that cause constriction of murine *** Murine precision cut lung slices(PCLS)and trachea were prepared,placed into perfusion chambers equipped with platinum electrodes and stimulated transmurally(1.0 ms,50 V,0.1-30 Hz).To measure PCLS constriction,changes in airway luminal area in response to electric field stimulation(EFS)were captured as video images quantified using Image J *** trachea,changes in isometric tension were recorded using Grass force *** response curves were generated in the absence and the presence of the inhibitors magnesium,atropine and capsaicin and responses analyzed and compared using a student's t-test(P<0.05).RESULTS EFS caused airway constriction in a frequency-dependent manner that was best fit by a biphasic ***-specific stimulation was verified by Mg^(2+) *** airway constriction to 30 Hz EFS in PCLS was(51.8±3.0)%while tracheal constriction averaged(551±80)***,in PCLS the muscarinic receptor antagonist atropine(10μmol·L^(-1))blocked(99.5±7.2)%of EFS induced constriction at 1 Hz,but only blocked(23.3±3.8)%of EFS induced constriction at 30 Hz and eliminated the first phase but not the second phase of the biphasic EFS *** with capsaicin to deplete sensory neurotransmitters significantly increased EFS constriction supporting the presence of sensory neurotransmitter systems in *** These data are consistent with parasympathetic constriction of airways by acetylcholine at lower EFS frequencies while higher frequencies release sensory dilator *** data provide evidence for multiple nerve types innervating airways which may provide novel targets for treatment of lung disease.

关键词： airways nerve stimulation airway constriction atropine capsaicin

Effect of electroacupuncture on glial fibrillary acidic protein and nerve growth factor in the hippocampus of rats with hyperlipidemia and middle cerebral artery thrombus

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Neural Regeneration Research 2021年第1期16卷 137-142页

作者： Na-Ying Xue Dong-Yu Ge Rui-Juan Dong Hyung-Hwan Kim Xiu-Jun Ren ya tu School of Acupuncture-Moxibustion and tuina Beijing University of Chinese MedicineBeijingChina School of Traditional Chinese Medicine Beijing University of Chinese MedicineBeijingChina Neurovascular Research Laboratory Department of RadiologyMassachusetts General Hospital and Harvard Medical SchoolCharlestownMAUSA

Electroacupuncture(EA)has been shown to reduce blood lipid level and improve cerebral ischemia in rats with hyperlipemia complicated by cerebral ***,there are few studies on the results and mechanism of the effect of EA in reducing blood lipid level or promoting neural repair after stroke in hyperlipidemic *** this study,EA was applied to a rat model of hyperlipidemia and middle cerebral artery thrombosis and the condition of neurons and astrocytes after hippocampal injury was *** for the normal group,rats in other groups were fed a high-fat diet throughout the whole *** models were established in rats fed a high-fat diet for 6 *** cerebral artery thrombus models were induced by pasting 50%FeCl3 filter paper on the left middle cerebral artery for 20 minutes on day 50 as the model ***1 group rats received EA at bilateral ST40(Fenglong)for 7 days before the *** in the EA1 and EA2 groups received EA at GV20(Baihui)and bilateral ST40 for 14 days after model *** health was assessed by hematoxylin-eosin staining in the *** was assessed by biochemical methods that measured total cholesterol,triglyceride,low-density lipoprotein and high-density lipoprotein in blood *** analysis was used to confirm the establishment of the *** methods were used to detect the expression of glial fibrillary acidic protein and nerve growth factor in the hippocampal CA1 *** results demonstrated that,compared with the model group,blood lipid levels significantly decreased,glial fibrillary acidic protein immunoreactivity was significantly weakened and nerve growth factor immunoreactivity was significantly enhanced in the EA1 and EA2 *** repair effect was superior in the EA1 group than in the EA2 *** findings confirm that EA can reduce blood lipid,inhibit glial fibrillary acidic protein expression and promote nerve growth factor

关键词： astrocytes CA1 cerebral ischemia electroacupuncture glial fibrillary acidic protein hematoxylin-eosin staining hippocampus hyperlipidemia immunohistochemistry nerve growth factor