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Extreme cold wave in early November 2021 in China and the influences from the meridional pressure gradient over East Asia

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Advances in Climate Change Research 2022年第6期13卷 797-802页

作者： Xiang LI ying-juan ZHANG Hui GAO Ting ding National Climate Center China Meteorological AdministrationBeijing 100081China Beijing Meteorological Service Beijing 100089China

In early November 2021,China experienced its second strongest cold wave event during *** the Siberian high is considered the main factor influencing cold wave events in East Asia,it was not extremely strong from 4 to November 9,*** spatial distribution of the correlation coefficients between the sea level pressure and the daily temperature anomalies shows a monopole pattern,with a notable negative centre in the southern part of the Siberian high monitoring ***,the correlation between the sea level pressure and temperature drop presents a typical dipole pattern,with a distinct negative centre in the northern monitoring domain and a positive centre in southern East *** the November 2021 super cold wave process,the sea level pressure anomalies display a dipole pattern with a higher centre in the north and a lower centre in the south owing to the northward shift of the Intertropical Convergence *** meridional pressure gradient index clearly reveals the non-negligible effect of subtropical low-pressure on this super cold wave process,indicating its possibly essential supplementary role in enhancing this *** above findings provide a new understanding of its mechanism and long-range forecasts.

关键词： Cold wave Siberian high Meridional pressure gradient Dipole pattern

Adaptive Sampling for Near Space Hypersonic Gliding Target Tracking

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Journal of Beijing Institute of Technology 2022年第6期31卷 584-594页

作者： Guanhua ding Jinping Sun ying Chen juan Yu School of Electronics and Information Engineering Beihang UniversityBeijing 100191China Beijing Institute of Radio Measurement Beijing 100854China

For modern phased array radar systems,the adaptive control of the target revisiting time is important for efficient radar resource allocation,especially in maneuvering target tracking *** paper presents a novel interactive multiple model(IMM)algorithm optimized for tracking maneuvering near space hypersonic gliding vehicles(NSHGV)with a fast adaptive sam-pling control *** algorithm utilizes the model probabilities to dynamically adjust the revisit time corresponding to NSHGV maneuvers,thus achieving a balance between tracking accuracy and resource *** results on typical NSHGV targets show that the proposed algo-rithm improves tracking accuracy and resource allocation efficiency compared to other conventional multiple model algorithms.

关键词： near space hypersonic gliding vehicle(NSHGV) target tracking adaptive sampling interactive multiple model(IMM)

Conserved quantities and adiabatic invariants of fractional Birkhoffian system of Herglotz type

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Chinese Physics B 2020年第4期29卷 303-311页

作者： juan-juan ding Yi Zhang School of Mathematics and Physics Suzhou University of Science and TechnologySuzhou 215009China College of Civil Engineering Suzhou University of Science and TechnologySuzhou 215011China

In order to further study the dynamical behavior of nonconservative systems,we study the conserved quantities and the adiabatic invariants of fractional Brikhoffian systems with four kinds of different fractional derivatives based on Herglotz differential variational ***,the conserved quantities of Herglotz type for the fractional Brikhoffian systems based on Riemann-Liouville derivatives and their existence conditions are established by using the fractional Pfaff-Birkhoff-d Alembert principle of Herglotz ***,the effects of small perturbations on fractional Birkhoffian systems are studied,the conditions for the existence of adiabatic invariants for the Birkhoffian systems of Herglotz type based on Riemann-Liouville derivatives are established,and the adiabatic invariants of Herglotz type are ***,the conserved quantities and adiabatic invariants for the fractional Birkhoffian systems of Herglotz type under other three kinds of fractional derivatives are established,namely Caputo derivative,Riesz-Riemann-Liouville derivative and Riesz-Caputo ***,an example is given to illustrate the application of the results.

关键词： fractional Birkhoffian system Pfaff-Birkhoff-d’Alembert principle adiabatic invariant Herglotz generalized variational principle

A truncated protein product of the germline variant of the DUOX2 gene leads to adenomatous polyposis

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Cancer Biology & Medicine 2021年第1期18卷 215-226页

作者： Mengyuan Yang yingxin Zhao Yuwei ding juan Wang Yinuo Tan Dong Xu ying Yuan Department of Medical Oncology Zhejiang University School of MedicineHangzhou 310009China Cancer Institute Zhejiang University School of MedicineHangzhou 310009China Department of Colorectal Surgery and Oncology Key Laboratory of Cancer Prevention and InterventionMinistry of EducationThe Second Affiliated HospitalZhejiang University School of MedicineHangzhou 310009China

Objective:In some patients with adenomatous polyposis,an identifiable pathogenic variant of known associated genes cannot be *** have studied this for decades;however,few new genes have been ***:Adenomatous polyposis coli(APC)negative polyposis patients were identified through next-generation sequencing and multiplex ligation-dependent probe ***,whole-exome sequencing(WES)was used to determine candidate genes harboring pathogenic *** experiments were performed to explore their ***,using Sanger sequencing,we found other polyposis patients carrying variants of the DUOX2 gene,encoding dual oxidase 2,and analyzed ***:From 88 patients with suspected familial adenomatous polyposis,25 unrelated APC negative polyposis patients were *** on the WES results of 3 patients and 2 healthy relatives from a family,the germline nonsense variant(c.1588 A>T;p.K530 X)of the DUOX2 gene was speculated to play a decisive role in the pedigree in relation to adenomatous *** functional experiments,we observed that the truncated protein,h Duox2 K530,was overexpressed in the adenoma in a carrier of the DUOX2 nonsense variant,causing abnormal cell proliferation through endoplasmic reticulum(ER)*** addition,we found two unrelated APC negative patients carrying DUOX2 missense variants(c.3329 G>A,p.R1110 Q;c.4027 C>T,p.L1343 F).Given the results of the in silico analysis,these two missense variants might exert a negative influence on the function of h ***:To our knowledge,this is the first study that reports the possible association of DUOX2 germline variants with adenomatous *** an autosomal dominant inheritance,it causes ER retention,inducing an unfolded protein response.

关键词： Adenomatous polyposis DUOX2 whole-exome sequencing endoplasmic reticulum retention unfolded protein response

Polycyclic aromatic hydrocarbon biodegradation and extracellular enzyme secretion in agitated and stationary cultures of Phanerochaete chrysosporium

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Journal of Environmental Sciences 2008年第1期20卷 88-93页

作者： ding juan CONG Jun ZHOU juan GAO Shixiang State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing 210093 China School of the Energy and Environment Southeast University Nanjing 210096 China

The extracellular enzyme secretion and biodegradation of polycyclic aromatic hydrocarbons （PAHs） were studied in agitated and shallow stationary liquid cultures of Phanerochaete chrysosporium. Veratryl alcohol and Tween80 were added to cultures as lignin peroxidase （LIP） and manganese peroxidase （MnP） inducer, respectively. Shallow stationary cultures were suitable for the production of enzyme, whereas agitated cultures enhanced overall biodegradation by facilitating interphase mass transfer of PAHs into aqueous phases. The use of a LiP stimulator, veratryl alcohol, did not increase PAH degradation but significantly enhanced LiP activity. In contrast, Tween80 increased both MnP secretion and PAH degradation in shallow stationary cultures. On the other hand, high PAH degradation was observed in agitated cultures in the absence of detectable LiP and MnP activities. The results suggested that extracellular peroxidase activities are not directly related to the PAH degradation, and the increased solubility rather than enzyme activity may be more important in the promotion of PAH degradation.

关键词： lignin peroxidase (LIP) manganese peroxidase (MnP) Phanerochaete chrysosporium polycyclic aromatic hydrocarbons (PAHs) solubilization

Global Trends in Dam Removal and Related Research: A Systematic Review Based on Associated Datasets and Bibliometric Analysis

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Chinese Geographical Science 2019年第1期29卷 1-12页

作者： ding Liuyong CHEN Liqiang ding Chengzhi TAO juan Yunnan Key Laboratory of International Rivers and Transboundary Eco-security Yunnan University Institute of International Rivers and Eco-security Yunnan University

Dam removal has been increasingly reported globally and is becoming an important approach for river management, restoration and environmental conservation in damming rivers. However, current limited knowledge of global trends in dam removal and related research may be potentially biased in terms of the geographic distribution and organisms studied. Such bias could mislead dam removal planning and management in different areas and ecological conservation for different taxa. In this study, we quantitatively and qualitatively analyzed datasets of dam removal and publications of dam removal research using bibliometric methods. A total of 1449 dam removal documents were published from 1953 to 2016. Trends, current hotspots and future directions of dam removal research were identified. The results from this study reveal that dam removal largely occurred in the North America and Europe, and most of the removed dams were small and old dams. With respect to the topic analysis, more dam removal studies should focus on the responses of a wide range of organisms, not only fish, as well as the interspecies relationships, food webs and ecosystem structures and functions. Based on our findings, we also provide some suggestions for future dam removal planning and analysis.

关键词： dam demolition literature research topics weir

Frictionless Multi-field Coupling Contact Problem for a Thermoelectric Layer Loaded by Two Rigid Punches

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Acta Mechanica Solida Sinica 2023年第2期36卷 282-292页

作者： Yali Zhang Hailiang Ma juan Yang Shenghu ding School of Mathematics and Statistics Ningxia UniversityYinchuan 750021China School of Ethnic Preparatory Education Ningxia UniversityYinchuan 750021China

In this paper,the thermo-electro-mechanical coupling contact problem of thermoelectric material with double punches is analyzed *** the Fourier cosine transform technique,the thermo-electro-elastic problem is transformed into three sets of singular integral equations,which are numerically solved by the Gauss–Chebyshev integral formula according to the unknown normal electric current density,normal energy flux and normal contact *** a rigid flat indenter,the results can be covered by the degradation results of two rigid flat *** numerical results reveal the interaction between two punches and the effect of thermoelectric load on the indentation *** interaction between the two punches reduces the contact pressure at the inner edge of the indenter as the thermoelectric load increases while increasing the stress singularity at the outer *** change of punches’spacing makes the singularity of normal stress at the inner and outer edges *** results provide an in-depth understanding of the multi-region contact damage mechanism of thermoelectric material.

关键词： Thermoelectric material Two rigid punches Interaction Analytical solutions

Midterm outcome of stapled transanal rectal resection for obstructed defecation syndrome:A single-institution experience in China

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World Journal of Gastroenterology 2013年第38期19卷 6472-6478页

作者： Bin Zhang Jian-Hua ding Yu-juan Zhao Meng Zhang Shu-Hui Yin ying-ying Feng Ke Zhao Department of Colorectal Surgery the Second Artillery General Hospital Department of Laboratory Medicine the Second Artillery General Hospital

AIM:To assess midterm results of stapled transanal rectal resection(STARR)for obstructed defecation syndrome(ODS)and predictive factors for ***:From May 2007 to May 2009,75 female patients underwent STARR and were included in the present *** and postoperative workup consisted of standardized interview and physical examination including proctoscopy,colonoscopy,anorectal manometry,and *** and functional results were assessed by standardized questionnaires for the assessment of constipation constipation scoring system(CSS),Longo’s ODS score,and symptom severity score(SSS),incontinence Wexner incontinence score(WS),quality of life Patient Assessment of Constipation-Quality of Life Questionnaire(PAC-QOL),and patient satisfaction visual analog scale(VAS).Data were collected prospectively at baseline,12 and 30 ***:The median follow-up was 30 mo(range,30-46 mo).Late postoperative complications occurred in 11(14.7%)*** of these patients required procedure-related reintervention(one diverticulectomy and two excision of staple granuloma).Although the recurrence rate was 10.7%,constipation scores(CSS,ODS score and SSS)significantly improved after STARR(P<0.0001).Significant reduction in ODS symptoms was matched by an improvement in the PAC-QOL and VAS(P<0.0001),and the satisfaction index was excellent in 25(33.3%)patients,good in 23(30.7%),fairly good in 14(18.7%),and poor in 13(17.3%).Nevertheless,the WS increased after STARR(P=0.0169).Incontinence was present or deteriorated in 8(10.7%)patients;6(8%)of whom were new *** analysis revealed that the occurrence of fecal incontinence(preoperative,postoperative or new-onset incontinence;P=0.028,0.000,and 0.007,respectively)was associated with the success of the ***:STARR is an acceptable procedure for the surgical correction of ***,its impact on symptomatic recurrence and postoperative incontinence may be problematic.

关键词： Colorectal surgery Constipation Stapled transanal rectal resection

Advantages of Short-term Personalized Vestibular Rehabilitation at Home Guided by Professional Therapist for Treatment of Decompensated Vestibular Vertigo

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Current Medical Science 2021年第4期41卷 687-694页

作者： Chen-ru ding ying-qi GAO Yu-juan ZHOU Jun GU Jing WANG Department of Otology and Skull Base Surgery Eye Ear Nose&Throat HospitalFudan UniversityShanghai 200031China Shanghai Auditory Medical Center Shanghai 200031China Key laboratory of Hearing Science Ministry of HealthShanghai 200031China

Objective Patients suffered a lot from decompensated vestibular *** and vestibular rehabilitation training have been proven to be effective in prompting vestibular *** rehabilitation training is faced with the challenges of patients’compliance,completion,the average recuperation time and so *** study is aimed to investigate advantages of short-term personalized vestibular rehabihitation at home guided by professional *** A short-term personalized vestibular rehabilitation program(ST-PVR)was designed for patients with decompensated vestibular vertigo in this *** Patients experiencing the ST-PVR program showed significant improvement of Self-Rating Anxiety Scale(SAS),Dizziness Handicap Inventory(DHI),Activities-Specific Balance Confidence Scale(ABC)scores by the second follow-up(at 2nd week after treatment,P<0.05).However-improvement in the medication group occurred slightly later,DHI for 1 month and SAS for 2 months after treatment(P<0.05).Also,the improvement in the onset time of unilateral weakness(UW)at 2nd week after treatment in the personalized vestibular rehabilitation(PVR)group was faster than that in the medication *** In general,the short-term PVR program showed great advantages by prompting vestibular compensation quickly and putting forward future direction for clinical treatment on decompensated vestibular vertigo.

关键词： vertigo personalized program medication vestibular compensation therapy vestibular rehabilitation