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Projections of surface air temperature and precipitation in the 21st century in the Qilian Mountains,Northwest China,using REMO in the CORDEX

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Advances in Climate Change Research 2022年第3期13卷 344-358页

作者： Lan-Ya LIU Xue-Jia WANG Xiao-Hua GOU Mei-Xue YANG zi-han ZhanG Key Laboratory of Western China's Environmental Systems(Ministry of Education) College of Earth and Environmental SciencesLanzhou UniversityLanzhou 730000China Gansu Liancheng Forest Ecosystem Field Observation and Research Station Lanzhou UniversityLanzhou 730333China State Key Laboratory of Cryospheric Science Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China

Qilian Mountains(QM)is an important ecological security barrier in China and has been significantly affected by climate change,it is therefore of great importance and necessity to project its future climate change using high-resolution climate models because of mountainous areas in the QM and relatively few targeted simulation *** this study,we used the simulations of the regional climate model REMO with 25 km spatial resolution,driven by three different global climate models(MPI-ESM-MR,NorESM1-M,and HadGEM2-ES),to evaluate how annual and seasonal mean surface air temperature and precipitation in the QM are likely to change for three future periods(2011-2040,2041-2070,and 2071-2100)under two representative concentration pathways(RCP2.6 and RCP8.5).The REMO model,shows noticeable cold and wet biases compared to observations for the reference period(1971-2000)and air temperature simulation outperforms precipitation *** REMO simulations exhibit a warm and wet centre around lake,indicating that the simulation are likely influenced by *** under RCP2.6 show regional warming reaching 1.74℃ during 2011-2100,characterized by an initial increase and a decrease *** RCP8.5,air temperatures increase monotonously from 2011 to 2100,with a warming magnitude of 5.36℃ for 2071-2100 relative to *** overall change in regional-average annual precipitation is not evident during 2011-2100,with some increases or decreases in certain time *** the 2071-2100 both the strongest warming and precipitation increase are projected to occur in winter under both scenarios,while precipitation in summer and autumn is projected to decrease in the east of the QM for the three future *** results suggest that the QM is likely to experience drought conditions in warm seasons in the future,which could impact agricultural and livestock production.

关键词： Qilian Mountains Climate projection REMO RCP scenario Regional climate model

Distinguish Different Factors Dominating Superconductivity in Y-Doped Bi_(2)Sr_(2)CaCu_(2)O_(y)

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Chinese Physics Letters 1996年第2期13卷 133-136页

作者： ZhanG han WU Ke FENG Qing-rong ZHU Xing FENG Sun-qi GAN zi-zhao Department of Physics Peking UniversityBeijing 100871

We observed in Y-doped Bi_(2)Sr_(2)CaCu_(2)O_(y) superconductors an interesting phenomenon,the T_(c)(onset)of the Y-doped samples is highcr,but the T_(c)(end)is lower than thatof Y-free *** annealing in N_(2) atmosphere,the Te(end)is increased,butthe T_(c)e(onset)is hardly *** careful studying,by structure analysis,x-ray photoelectron spectroscopy,R-T relationship measurement,and Hall effect,we successfully distinguish the different factors that dominate the superconductivity,of which one is carrier concentration,others may possibly be structure change andcharges redistribution.

关键词： annealing structure charges

Influence of non-uniform ultrasonic vibration on casting fluidity of liquid aluminum alloy

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China Foundry 2022年第5期19卷 380-386页

作者： zi-heng han Zhi-ming Wang Zhi-ping Sun Bing-rong Zhang Wei-feng Rao School of Mechanical Engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China

The application of ultrasonic vibration to the casting process can be realized through mould(die)***,the resonant vibration of the mould is always accompanied by a non-uniform vibration distribution at different parts,which may induce a complex liquid flow and affect the casting fluidity during the mould filling *** influence of non-uniform ultrasonic vibration on the fluidity of liquid AlSi9Cu3 alloy was studied by mould vibration with different vibration *** is found that ultrasonic mould vibration can generate two opposite effects on the casting fluidity:the first,ultrasonic cavitation in melt induced by mould vibration promotes the casting fluidity;the second,the non-uniform mould vibration can induce a melt flow toward the weak vibration areas and turbulence there,consequently decreasing the casting *** the melt flow and turbulence are violent enough to offset the promoting effect of cavitation on fluidity,the ultrasonic vibration will finally induce a resultant decrease of casting *** decreasing effect is proportional to the vibration gradient.

关键词： ultrasonic vibration vibration gradient aluminum alloy fluidity

Brief inhalation of sevoflurane can reduce glial scar formation after hypoxic-ischemic brain injury in neonatal rats

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Neural Regeneration Research 2021年第6期16卷 1052-1061页

作者： Qiu-Shi Gao Ya-han Zhang hang Xue zi-Yi Wu Chang Li Ping Zhao Department of Anesthesiology Shengjing Hospital of China Medical UniversityShenyangLiaoning ProvinceChina

Previous studies have demonstrated that sevoflurane postconditioning can provide neuroprotection after hypoxic-ischemic injury and improve learning and memory function in developing rodent *** classical Rice-Vannucci model was used to induce hypoxic-ischemic injury,and newborn(postnatal day 7)rats were treated with 2.4%sevoflurane for 30 minutes after hypoxic-ischemic *** results showed that sevoflurane postconditioning significantly improved the learning and memory function of rats,decreased astrogliosis and glial scar formation,increased numbers of dendritic spines,and protected the histomorphology of the ***,sevoflurane postconditioning decreased expression of von Hippel-Lindau of hypoxia-inducible factor-1α and increased expression of *** of 1.52μg of the hypoxia-inducible factor-1αinhibitor YC-1(Lificiguat)into the left lateral ventricle 30 minutes before hypoxic-ischemic injury reversed the neuroprotection induced by *** finding suggests that sevoflurane can effectively alleviate astrogliosis in the hippocampus and reduce learning and memory impairments caused by glial scar formation after hypoxic-ischemic *** underlying mechanism may be related to upregulated DJ-1 expression,reduced ubiquitination of hypoxia-inducible factor-1α,and stabilized hypoxiainducible factor-1α*** study was approved by the Laboratory Animal Care Committee of China Medical University,China(approval No.2016PS337K)on November 9,2016.

关键词： brain injury brain central nervous system in vivo injury model plasticity rat recovery regeneration repair

Gut microbiota in obesity

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World Journal of Gastroenterology 2021年第25期27卷 3837-3850页

作者： Bing-Nan Liu Xiao-Tong Liu zi-han Liang Ji-Hui Wang School of Bioengineering Dalian Polytechnic UniversityDalian 116034Liaoning ProvinceChina Engineering Research Center of Health Food Design&Nutrition Regulation Dongguan University of TechnologyDongguan 523808Guangdong ProvinceChina

Obesity is a major global health problem determined by heredity and environment,and its incidence is increasing *** recent years,increasing evidence linking obesity to the gut microbiota has been *** microbiota management has become a new method of obesity ***,the complex interactions among genetics,environment,the gut microbiota,and obesity remain poorly *** this review,we summarize the characteristics of the gut microbiota in obesity,the mechanism of obesity induced by the gut microbiota,and the influence of genetic and environmental factors on the gut microbiota and obesity to provide support for understanding the complex relationship between obesity and *** the same time,the prospect of obesity research related to the gut microbiota is proposed.

关键词： Gut microbiota Obesity Dysbiosis Genetics Ecology

Retroperitoneal bronchogenic cyst in suprarenal region treated by laparoscopic resection:A case report

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World Journal of Clinical Cases 2021年第24期9卷 7245-7250页

作者： Lei-Di Wu Kan Wen zi-Rui Cheng Osamah Alwalid Ping han Department of Radiology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430000Hubei ProvinceChina Department of Urology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430000Hubei ProvinceChina

BACKGROUND Bronchogenic cysts(BCs)are benign congenital foregut malformations that are mostly present in the mediastinum and pulmonary parenchyma but rarely seen in the *** SUMMARY We report the case of 17-year-old girl who complained of epigastric pain.A cystic lesion was found in the left suprarenal region on spectral computed *** ovoid,well-defined,and homogeneous cystic lesion revealed slightly enhancement on conventional imaging but no enhancement on 40 KeV virtual mono-energetic *** iodine density value of the lesion was 0.001 mg/mL and the Z-effective value was 7.25,which were close to those of fluid material in in vitro *** resonance imaging revealed a cystic mass of intermediate signal intensity on T1-weighted imaging and high signal intensity on T2-weighted imaging.A laparoscopic surgery was carried ***,a cystic lesion with a smooth surface was found in the left *** the cystic wall was completely resected after intracystic fluid was *** histopathological examination findings of the lesion were compatible with *** patient recovered uneventfully without sighs of recurrence during a 10-mo follow-up *** Radiological examinations play a significant role in the diagnosis of suprarenal BCs and spectral images offer additional spectral *** preoperative diagnoses of retroperitoneal BCs based on thorough imaging examinations are beneficial to the operation of laparoscopic resection.

关键词： Bronchogenic cysts Suprarenal region Spectral computed tomography Laparoscopic resection Case report

Primary intracranial extraskeletal myxoid chondrosarcoma:A case report and review of literature

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World Journal of Clinical Cases 2022年第13期10卷 4301-4313页

作者： zi-You Zhu Yu-Bo Wang han-Yi Li Xin-Min Wu Department of Neurosurgery The First Hospital Affiliated to Jilin UniversityChangchun 130021Jilin ProvinceChina Department of Orthodontics Hospital of Stomatology of Jilin UniversityChangchun 130021Jilin ProvinceChina

BACKGROUND Primary intracranial extraskeletal myxoid chondrosarcoma(EMC)is an extremely rare low-to intermediate-grade malignant soft tissue sarcoma,and only 15 cases have been reported in the *** to its rarity,clinical data and research on this tumor type are extremely limited,the pathogenesis and histological origin are still unclear,and the diagnostic and standard clinical treatment strategies for intracranial EMC remain controversial and *** SUMMARY We reported a case of a 52-year-old male who was admitted to the hospital with headache and dizziness for 1 mo,and his health status deteriorated during the last *** of the head showed a well-defined low-density lesion situated in the left cavernous *** magnetic resonance imaging(MRI)showed a 3.4 cm×3.0 cm sized,well-defined,round-shaped and heterogeneously enhanced lesion located in the left cavernous *** entire lesion was removed via supratentorial craniotomy and *** pathological diagnosis indicated primary intracranial ***,the patient underwent 45 Gy/15 F stereotactic radiotherapy after *** present,it is 12 mo after surgery,with regular postoperative follow-up and regular MRI examinations,that there are no clinical symptoms and radiographic evidence indicating the recurrence of the tumor,and the patient has returned to normal *** Currently,the most beneficial treatment for primary intracranial EMC is gross total resection combined with postoperative ***-term follow-up is also necessary for patients.

关键词： Extraskeletal myxoid chondrosarcoma Primary intracranial neoplasm Soft tissue sarcoma Surgery Radiotherapy Case report

Effective suppression of beta oscillation in Parkinsonian state via a noisy direct delayed feedback control scheme

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Chinese Physics B 2021年第3期30卷 555-563页

作者： Hai-Tao Yu zi-han Meng Chen Liu Jiang Wang Jing Liu School of Electrical and Information Engineering Tianjin UniversityTianjin 300072China Department of Neurology Tangshan Gongren HospitalTangshan 063000China

This work explores the function of the noisy direct delayed feedback(NDDF)control strategy in suppressing the pathological oscillations in the basal ganglia(BG)with Parkinson’s disease(PD).Deep brain stimulation(DBS)alleviates the PD state ***,due to its unclear mechanism and open-loop characteristic,it is challenging to further improve its effects with lower energy *** noise stimulus performs competitively in alleviating the PD state theoretically,but it cannot adapt to the neural condition timely and automatically due to its open-loop control *** direct delayed feedback(DDF)control strategy is able to disturb excessive synchronous ***,the NDDF control strategy is proposed and researched based on a BG computational model,which can reflect the intrinsic properties of the BG neurons and their connections with thalamic *** results show that the NDDF control strategy with optimal parameters is effective in removing the pathological beta *** comparison,we find the NDDF control strategy performs more excellent than DDF in alleviating PD ***,we define the multiple-NDDF control strategy and find that the multiple-NDDF with appropriate parameters performs better than *** obtained results contribute to the cure for PD symptoms by optimizing the noise-induced improvement of the BG dysfunction.

关键词： basal ganglia neural networks Parkinsonian state noise delayed feedback

Microbiota treatment of functional constipation:Current status and future prospects

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World Journal of Hepatology 2024年第5期16卷 776-783页

作者： Yan Li Xiao-han Zhang zi-Kai Wang Department of Gastroenterology and Hepatology The First Medical CenterChinese PLA General HospitalBeijing 100853China Medical School Nankai UniversityTianjin 300071China National Clinical Research Center for Geriatric Diseases Chinese PLA General HospitalBeijing 100853China

Functional constipation(FC)is a common disorder that is characterized by diffi-cult stool passage,infrequent bowel movement,or *** is highly prevalent,recurs often,accompanies severe diseases,and affects quality of life;therefore,safe and effective therapy with long-term benefits is urgently *** treatment has potential value for FC *** treatments include modulators such as probiotics,prebiotics,synbiotics,postbiotics,and fecal micro-biota transplantation(FMT).Some probiotics and prebiotics have been adopted,and the efficacy of other microbiota modulators is being *** is con-sidered an emerging field because of its curative effects;nevertheless,substantial work must be performed before clinical implementation.

关键词： Functional constipation Gut microbiota Microbiota modulators Fecal microbiota transplantation Dysbiosis