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Chemical Research in Chinese Universities 2008年第1期24卷 120-122页

作者： NIAN Bao-yi XU Gang WU jiang-ping YANG Li-rong Department of Chemistry and Biology Engineering Sanming University Sanming 365004 P. R. China College of Material Science and Chemical Engineering Zhejiang University Hangzhou 310027 P. R. China

Ionic liquids（ILs） are attracting much attention in various fields of chemical synthesis, electrochemical applications, liquid-liquid extractions, as well as biotransformations. Among those fields, the application of ILs as the potential green solvent for a wide variety of synthetic processes is an area of intense researches. High yield, high selectivity, and good catalytic charac-teristics have usually been achieved. After the isolation of products, ILs can usually be recovered and recycled many times by simple treating procedures, such as, filtration, extraction, and dryness.

关键词： Ionic liquid Zinc borohydride Reductive arnination BMImBF4

Novel mutations of the Alstr?m syndrome 1 gene in an infant with dilated cardiomyopathy:A case report

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World Journal of Clinical Cases 2022年第7期10卷 2330-2335页

作者： ping jiang Liang Xiao Yuan Guo Rong Hu Bo-yi Zhang yi He Department Of Cardiology Zhuzhou Central HospitalZhuzhou 412000Hunan ProvinceChina Department of Pediatric Zhuzhou Central HospitalZhuzhou 412000Hunan ProvinceChina Department of Medical Ultrasonics Zhuzhou Central HospitalZhuzhou 412000Hunan ProvinceChina

BACKGROUND Alstr?m syndrome(AS)is a rare autosomal recessive disease that is generally induced by mutations of the Alstr?m syndrome 1(ALMS1)*** report a case of AS,extend the spectrum of ALMS1 mutations and highlight the biological role of ALMS1 to explore the relationship between dilated cardiomyopathy(DCM)and mutations in *** SUMMARY We present the case of an infant with AS mainly manifesting with DCM that was caused by a novel mutation of the ALMS1 ***-exome sequencing revealed a simultaneous large deletion and point mutation in ALMS1,leading to frameshift and missense mutations,respectively,rather than nonsense or frameshift mutations,which have been reported *** optimized anti-remodeling therapy,biohumoral exams and arrhythmic burden of the infant were alleviated at follow-up after 6 *** We identified novel mutations of ALMS1 and extended the spectrum of ALMS1 mutations in an infant with AS.

关键词： Alström syndrome Dilated cardiomyopathy Alström syndrome 1 Missense mutation Frameshift mutation Case report

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World Journal of Emergency Medicine 2024年第6期15卷 505-507页

作者： ping Gong Fang Chen Yonggang Gui Yanfen Chai yi jiang Department of Emergency Shenzhen People's Hospital(Second Clinical Medical CollegeJinan University/First Affiliated HospitalSouthern University of Science and Technology)Shenzhen 518020China Department of Emergency General Hospital of Tianjin Medical UniversityTianjin 300052China

Anti-glomerular basement membrane(anti-GBM)disease is a rare small vessel vasculitis representing the most aggressive form of autoimmune glomerulonephritis.[1,2]Its overall incidence ranges from 0.60 to 1.79 per million population annually.[1]Anti-GBM disease is mediated by abnormal anti-GBM antibody production,which mainly targets GBM and thus contributes to rapid progressive glomerulonephritis with a distinctive pattern of diffuse crescentic formation in the glomeruli.

关键词： metabolism glomerular anemia

Isolated splenic metastases from gastric carcinoma:A case report and literature review

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World Journal of Gastroenterology 2013年第31期19卷 5199-5203页

作者： yi-ping Zhu yi-ping Mou Jun-Jun Ni Yu-Cheng Zhou Jin-Wei jiang Zhi-Nong jiang Guan-Yu Wang Department of General Surgery Sir Run Run Shaw Hospital Zhejiang University School of Medicine Department of Pathology Sir Run Run Shaw Hospital Zhejiang University School of Medicine

Isolated metastases to the spleen from gastric carcinoma is very *** a few cases have been reported in the *** herein present a case of isolated splenic metastases in a 62-year-old man,occurring 12 mo after total gastrectomy for gastric *** patient underwent a laparoscopic exploration,during which two lesions were found at the upper pole of the spleen,without involvement of other organs.A laparoscopic splenectomy was *** examination confirmed that the splenic tumor was a poorly differentiated adenocarcinoma similar to the primary gastric *** postoperative course was uneventful and the patient has been well for 9 mo,with no tumor *** clinical data of 18 cases of isolated splenic metastases from gastric carcinoma treated by splenectomy were summarized after a literature *** our knowledge,this is the first reported case of isolated splenic metastases undergoing laparoscopic splenectomy.

关键词： Metastasis Splenic neoplasms Stomach neoplasms Laparoscopy Splenectomy

To improve robustness of mechanical properties of semi-solid cast A356 alloy using taguchi design method

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China Foundry 2024年第2期21卷 175-184页

作者： yi-wu Xu Hong-yi Zhan Wei Tong Jin-ping Li Le-peng Zhang De-jiang Li Xiao-qin Zeng School of Materials Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China China Science Lab General Motors Global Research&DevelopmentShanghai 201206China General Motors(China)Investment Co. Ltd.Shanghai 201206China China International Intellectech Corporation(CIIC) Beijing 100004China

Mechanical properties of semi-solid casting are dependent on multiple processing parameters,and improper processing parameters will not only reduce mean data but also increase *** present study investigated the impact of parameters in slurry preparation and heat treatment on the yield strength and ductility of T6 heat-treated A356 Al-Si alloy using rapid slurry forming(RSF)semi-solid *** focus was primarily on the robustness of mechanical properties based on Taguchi design *** analyzing signal-to-noise ratio and minimum value calculated from-3S,the optimum slurry preparation parameters and heat treatment parameters were determined to be no quench,enthalpy exchange material(EEM)temperature of 140℃,EEM-to-melt ratio of 6mass%,stirring time of 18 s,solution heat treated at 520℃ for 2 h,and ageing heat treated at 190℃ for 6 *** a small batch validation,the-3S yield strength and-3S elongation reach 256.1 MPa and 5.03% respectively,showing a satisfactory *** hardness and microstructure of heat-treated samples with the best and worst properties were characterized to gain insight into the underlying mechanisms affecting the mean value and variations of mechanical properties.

关键词： semi-solid casting taguchi design method signal-to-noise ratio mechanical property microstructure

A Combination Model for Image Denoising

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Acta Mathematicae Applicatae Sinica 2016年第3期32卷 781-792页

作者： yi-ping XU School of Science Southwest University of Science and Technology

In this paper, we propose an efficient combination model of the second-order ROF model and a simple fourth-order partial differential equation （PDE） for image denoising. The split Bregman method is used to convert the nonlinear combination model into a linear system in the outer iteration, and an algebraic multigrid method is applied to solve the linear system in the inner iteration. Furthermore, Krylov subspace acceleration is adopted to improve convergence in the outer iteration. At the same time, we prove that the model is strictly convex and exists a unique global minimizer. We have also conducted a variety of numerical experiments to analyze the parameter selection criteria and discuss the performance of ~he fourth-order PDE in the combination model. The results show that our model can reduce blocky effects and our algorithm is efficient and robust to solve the proposed model.

关键词： image denoising partial differential equations split Bregman method algebraic multi-grid method Krylov subspace acceleration

The Effects of Natural Capital Protection on Pastoralist's Livelihood and Management Implication in the Source Region of the Yellow River, China

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Journal of Mountain Science 2013年第5期10卷 885-897页

作者： Fang yi-ping Institute of Mountain Hazards& Environment Chinese Academy of Sciences

The interaction among different livelihood capitals is a key to generate a deeper understanding of the livelihood *** this paper,we use net income per capita(economic capital),meat and milk production per capita(physical capital),and areas of fenced pasture,livestock shelter,grassland rodent control and planted grassland(physical capital) as proxy indicators of livelihood promotion,livelihood provision,and livelihood protection *** developing a correlation model between pastoralists' livelihood protection and improvement,we found that(1) there is a statistically significant correlation between the pastoralists' livelihood protection and promotion;(2) based on the maximum effect of pastoralists' livelihood promotion and provision,there is a benchmark in the effect of the intervention intensity of livelihood capital(grassland resource protection) on livelihood improvement;(3) on basis of two indicators,*** income per capita and meat production per capita,the reasonable scales of fenced pasture,livestock shelter and planted grassland are less than 843,860 and 46 thousand hectares(hm2) per year *** the marginal effect of livelihood protection,moderately decreased areas of fenced pasture and planted grassland,and increased area of livestock shelter is a critical to ensure pastoralist's livelihood sustainability.

关键词： Regional sustainability Natural capitalprotection Pastoralist's livelihood Source Region ofthe Yellow River

Changes in the food supply capacity of alpine grassland ecosystem:A dialectic synthesis of natural and anthropogenic drivers

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Advances in Climate Change Research 2020年第1期11卷 1-10页

作者： FANG yi-ping Institute of Mountain Hazards&Environment Chinese Academy of SciencesChengdu610041China College of Resource and Environment University of Chinese Academy of SciencesBeijing100049China

Grassland-based animal husbandry and livestock production is the main contributor to livelihood creation for *** using the structural dynamics method,this study quantified the changes in the food supply capacity(FSC)of alpine grassland ecosystem and sensitivity to significant *** findings indicated that:i)Natural factors were the dominated forces affecting FSC,and their contribution was 71.3%.Of these natural elements,the net primary productivity(NPP)and precipitation were the largest contributors,accounting for approximately 35%.The sensitivity index of the FSC to NPP and precipitation during grassland growing season were 4.1 and 1.9 *** the contrary,human factors like warm shed area,density of road,capacity for access to information,contributed to 28.7%of the total ***)More intense snow disaster had a larger negative impact on *** disaster can cause dramatic reduction in FSC,with a loss rate of 27.6%and with none intense disaster more negative impacts,iii)The continuing increase of FSC in the past 30 years from 1984 to 2014 was due to the significant increase of precipitation and NPP in the growing season of alpine ***,successful adaptation to climate change was critical to combat the climatic adversely impact on ***,strengthening information dissemination,road accessibility and knowledge popularization of local residents'disaster reduction should be place high priority for improving FSC。

关键词： Food supply capacity Alpine grassland ecosystem Structural dynamics method Snow disaster Permafrost

Studies on the Synthesis, Crystal Structure and Quantum Chemistry of Di(o-cyanobenzyl)tin Bis(quinoline-2-carboxylate)

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Chinese Journal of Structural Chemistry 2008年第2期27卷 220-224页

作者： KUANG Dai-Zhi jiang jiang-ping ZHANG Fu-Xing WANG Jian-Qiu LUO yi-Ming FENG Yong-Lan Department of Chemistry and Materials Science Hengyang Normal University Hengyang 421008 China School of Chemistry and Chemical Engineering Central South University Changsha 410083 China

Di（o-cyanobenzyl）tin bis（quinoline-2-carboxylate） was synthesized by the reaction of tri（o-cyanobenzyl）tin chloride with quinoline-2-carboxylic acid. The molecular structure of the compound was characterized by elemental analysis, IR, 1H NMR and X-ray diffraction. Crystal data for the compound： tficlinic, space group P1, a = 0.80734（7）, b = 1.00681（9）, c = 1.04811（9） nm, a = 81.7570（10）, β = 7.7240（10）,γ = 81.2850（10）°, V = 0.77581（12） nm3, Z = 1, Dc = 1.488 g/cm3, μ（MoKa） = 0.870 mm^-1 and F（000） = 350. The final R= 0.0204 and wR= 0.0530 for 2677 observed reflections with I 〉2σ（I）, and R = 0.0208 and wR = 0.0532 for all reflections. The molecular structure adopts a distorted octahedral geometry around the Sn atom. The title compound molecules are connected via hydrogen bonding interactions to form a 3D network structure. Quantum chemistry calculation study on the title compound has been performed by means of G98W package at the Lanl2dz basis set. The stability of the compound, orbital energies and some frontier molecular orbital composition characteristics have also been investigated.

关键词： di(o-cyanobenzyl)tin bis(quinoline-2-carboxylate) synthesis crystal structure

Impact of low/high-κ spacer-source overlap on characteristics of tunnel dielectric based tunnel field-effect transistor

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Journal of Central South University 2017年第11期24卷 2572-2581页

作者： jiang Zhi ZHUANG yi-qi LI Cong WANG ping LIU Yu-qi School of Microelectronics Xidian UniversityXi’an 710071China

The effects of low-κ and high-κ spacer were investigated on the novel tunnel dielectric based tunnel field-effect transistor(TD-FET) mainly based upon ultra-thin dielectric direct tunneling mechanism. Drive currents consist of direct tunneling current and band-to-band tunneling(BTBT) current. Meanwhile, tunneling position of the TD-FET differs from conventional tunnel-FET in which the electron and hole tunneling occur at intermediate rather than surface in channel(or source-channel junction under gate dielectric). The 2-D nature of TD-FET current flow is also discussed that the on-current is degraded with an increase in the spacer width. BTBT current will not begin to play part in tunneling current until gate voltage is 0.2 V. We clearly identify the influence of the tunneling dielectric layer and spacer electrostatic field on the device characteristics by numerical simulations. The inserted Si_3N_4 tunnel layer between P+ region and N+ region can significantly shorten the direct and band-to-band tunneling path, so a reduced subthreshold slope(Ss) and a high on-current can be achieved. Above all the ambipolar current is effectively suppressed, thus reducing off-current. TD-FET demonstrates excellent performance for low-power applications.

关键词： tunnel dielectric based tunnel field-effect transistor tunnel field-effect transistor band-to-band tunneling tunneling dielectric layer subthreshold slope off-current on-current