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金融摩擦与新兴经济体特征对中国货币政策传导的影响

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当代财经 2017年第7期 58-70页

作者：陈师郑直王颖西南财经大学经济学院四川成都611130 西南财经大学经济与管理研究院四川成都611130

通过建立一个具备货币替代、金融加述器和负债美元化的中型开放经济动态随机一般均衡模型,利用中国宏观季度数据进行贝叶斯估计,结果表明:中国的货币政策及汇率制度可由一个有管理的浮动汇率制形式的货币政策规则加以经验描述,货币政策... 详细信息

通过建立一个具备货币替代、金融加述器和负债美元化的中型开放经济动态随机一般均衡模型,利用中国宏观季度数据进行贝叶斯估计,结果表明:中国的货币政策及汇率制度可由一个有管理的浮动汇率制形式的货币政策规则加以经验描述,货币政策的传导受到金融摩擦和新兴市场经济体特征因素的影响;并且,金融摩擦和新兴市场经济体特征会造成更为积极的货币政策干预,弱化货币政策在稳定经济方面的表现,并带来更大的福利损失。因此,应该探索一系列更为灵活的外汇政策,加快汇率市场化改革,逐步开放国内金融市场。

关键词：金融加速器货币替代负债美元化最优货币政策

Multiparameter magnetic resonance imaging-based radiomics model for the prediction of rectal cancer metachronous liver metastasis

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 62-72页

作者： zhi-Da Long Xiao Yu zhi-Xiang Xing Rui wang Department of Hepatobiliary and Pancreaticosplenic Surgery Jingzhou Hospital Affiliated to Yangtze UniversityJingzhou 434100Hubei ProvinceChina

BACKGROUND The liver,as the main target organ for hematogenous metastasis of colorectal cancer,early and accurate prediction of liver metastasis is crucial for the diagnosis and treatment of ***,this study aims to investigate the application value of a combined machine learning(ML)based model based on the multiparameter magnetic resonance imaging for prediction of rectal metachronous liver metastasis(MLM).AIM To investigate the efficacy of radiomics based on multiparametric magnetic resonance imaging images of preoperative first diagnosed rectal cancer in predicting MLM from rectal *** We retrospectively analyzed 301 patients with rectal cancer confirmed by surgical pathology at Jingzhou Central Hospital from January 2017 to December *** participants were randomly assigned to the training or validation queue in a 7:3 *** first apply generalized linear regression model(GLRM)and random forest model(RFM)algorithm to construct an MLM prediction model in the training queue,and evaluate the discriminative power of the MLM prediction model using area under curve(AUC)and decision curve analysis(DCA).Then,the robustness and generalizability of the MLM prediction model were evaluated based on the internal validation set between the validation queue *** Among the 301 patients included in the study,16.28%were ultimately diagnosed with MLM through pathological *** analysis showed that carcinoembryonic antigen,and magnetic resonance imaging radiomics were independent predictors of ***,the GLRM prediction model was developed with a comprehensive nomogram to achieve satisfactory *** prediction performance of GLRM in the training and validation queue was 0.765[95%confidence interval(CI):0.710-0.820]and 0.767(95%CI:0.712-0.822),*** with GLRM,RFM achieved superior performance with AUC of 0.919(95%CI:0.868-0.970)and 0.901(95%CI:0.850-0.952)in the training and validation queue,respect

关键词： Rectal cancer Metachronous liver metastases Magnetic resonance imaging Radiomics Machine learning

Influence of Hydrothermal Dewatering on the Gasification Characteristics of Typical Chinese Lignites

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中国电机工程学报 2013年第32期33卷 I0003-I0003页

作者： GE Lichao ZHANG Yanwei ying zhi wang zhihua ZHOU Junhu CEN Kefa Zhejiang University

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一种基于客户类的接纳控制算法与仿真实现

系统仿真学报 2008年第24期20卷 6686-6690页

作者：智英建王娜汪斌强国家数字交换系统工程技术研究中心郑州450002

接纳控制是视频服务中保证客户服务质量的重要机制。在介绍一种新的分布式视频点播系统的基础上,将客户分为不同的优先级类,每类客户采用基于阈值的接纳控制方法,分析了各个客户类的稳态阻塞概率,并利用Kaufman/Roberts递归算法来降低... 详细信息

接纳控制是视频服务中保证客户服务质量的重要机制。在介绍一种新的分布式视频点播系统的基础上,将客户分为不同的优先级类,每类客户采用基于阈值的接纳控制方法,分析了各个客户类的稳态阻塞概率,并利用Kaufman/Roberts递归算法来降低计算复杂度。建立了系统收益模型,从系统收益最大化的角度,给出了确定各个客户类最佳阈值的方法。仿真结果与理论分析完全吻合,验证了分析模型的有效性和正确性,同时也证明该算法能够保证高优先级的客户优先享用服务器资源,并且就系统收益而言,该算法优于完全共享的接纳策略。

关键词：接纳控制服务质量视频点播阻塞概率系统收益

Multiple liver metastases of unknown origin:A case report

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 233-238页

作者： ying-Jin wang Ze-Chuan Liu Jian wang Yin-Mo Yang Department of Hepatobiliary Pancreatic Surgery Peking University First HospitalBeijing 100034China Department of Interventional and Vascular Surgery Peking University First HospitalBeijing 100034China

BACKGROUND The liver is the most common site of digestive system tumor metastasis,but not all liver metastases can be traced back to the primary *** it is unusual,syphilis can impact the liver,manifesting as syphilitic hepatitis with inflammatory nodules,which might be misdiagnosed as *** SUMMARY This case report involves a 46-year-old female who developed right upper abdominal pain and intermittent low fever that persisted for more than three *** definitive diagnosis of a tumor had been made in the past decades,but signs of multiple liver metastases were recognized after a computed tomo-graphy scan without evidence of primary *** positive serological tests for syphilis and a biopsy of the liver nodules,a diagnosis of hepatic syphilis was made and confirmed with follow-up nodule reduction after anti-syphilis *** Clinicians must be aware of the possibility that syphilis can cause hepatic inflam-matory masses,especially when liver metastasis is suspected without evidence of primary lesions.A definitive diagnosis should be established in conjunction with a review of the patient’s medical history for accurate therapeutic intervention.

关键词： Syphilitic hepatitis Liver nodules Liver metastasis Treponema pallidum Case report

基于CAD/CAE的注塑模具计算机模拟优化设计

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煤炭技术 2017年第5期36卷 315-317页

作者：刘志英王晓峰郑州职业技术学院郑州450121

重点介绍基于CAE技术(以UG为例)的盒式卡扣的注塑模具的设计流程,并采用CAD/CAE注塑模集成系统来分析优化模具的工艺参数,并通过实验对比确定了最优的工艺参数方案。

关键词：注塑模具 CAE技术 UG 设计流程优化设计

Molecularly Imprinted Solid-Phase Extraction for the Determination of Phenoxyacid Herbicides and 2,4-DP Enantiomers in water

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Molecularly Imprinted Solid-Phase Extraction for the Determi...

Poorly controlled type II diabetes mellitus significantly enhances postoperative chemoresistance in patients with stage III colon cancer

第四届国际华夏学者分析化学研讨会

作者： zhi-ying wang, Lan-Jun Liu, Lian Leng, Ling Zhang, zhi-Chao Zhang State Key Laboratory of Elemento-Organic Chemistry, Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071.

Molecularly imprinted polymers (MIPs) were synthesized using the herbicide 2-(2,4-dichlorophenoxy) propionic acid (2,4-DP) as template, 4-vinylpyridine as functional monomer, ethylene dimethacrylate as cross-linker, and methanol water mixture as porogen. Their corresponding nonimprinted polymers were prepared simultaneously. The binding characteristics (capacity and selectivity) of these polymers were evaluated using equilibrium binding experiments. The results show that (1) MIPs with functional monomer to template molar ratio of 1:1 behave better than those with 2:1 and 4:1, (2) MIPs behave better with the increase of porogen amount, (3) cross-linker amount has little influence on the binding characteristics and (4) when the reagent scheme is 1/1/8 (temple/ monomer/ cross-linker, mol/mol/mol), methanol water (3/1,v/v) mixture (with volume concentration of 75% in polymerization reactants) as porogen, the resulted MIP exhibits the best binding characteristics. The thermodynamics, kinetics and selectivity of the best MIP were examined systematically. Scale-hard analysis indicates that its binding sites are homogeneous.

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World Journal of Gastroenterology 2025年第3期31卷 29-41页

作者： Ruo-Yu Guan Jia-Wei Wu Zi-Yun Yuan zhi-Yuan Liu Zi-Zhu Liu zhi-Cong Xiao Jing-Hui Li Cheng-zhi Huang Jun-Jiang wang Xue-Qing Yao Guangdong Cardiovascular Institute Guangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesSouthern Medical UniversityGuangzhou 510080Guangdong ProvinceChina Department of Gastrointestinal Surgery Department of General SurgeryGuangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhou 510080Guangdong ProvinceChina Department of General Surgery Guangdong Provincial People’s Hospital Ganzhou Hospital(Ganzhou Municipal Hospital)Ganzhou 341000Jiangxi ProvinceChina Shantou University Medical College Shantou 515041Guangdong ProvinceChina School of Medicine South China University of TechnologyGuangzhou 510006Guangdong ProvinceChina Gannan Medical University Ganzhou 341000Jiangxi ProvinceChina

BACKGROUND Type II diabetes mellitus(T2DM)has been associated with increased risk of colon cancer(CC)and worse prognosis in patients with *** effects of T2DM on postoperative chemoresistance rate(CRR)and long-term disease-free survival(DFS)and overall survival(OS)in patients with stage III CC who receive curative resection remain *** To investigate whether T2DM or glycemic control is associated with worse postoperative survival outcomes in stage III *** This retrospective cohort study included 278 patients aged 40-75 years who underwent surgery for stage III CC from 2018 to *** on preoperative T2DM history,the patients were categorized into non-DM(n=160)and DM groups(n=118).The latter was further divided into well-controlled(n=73)and poorly controlled(n=45)groups depending on the status of glycemic ***,OS,and CRR were compared between the groups and Cox regression analysis was used to identify risk *** Patients in the DM and non-DM groups demonstrated similar DFS,OS,and CRR(DFS:72.03%vs 78.75%,P=0.178;OS:81.36%vs 83.12%,P=0.638;CRR:14.41%vs 7.5%,P=0.063).Poorly controlled DM was associated with a significantly worse prognosis and higher CRR than well-controlled DM(DFS:62.22%vs 78.07%,P=0.021;OS:71.11%vs 87.67%,P=0.011;CRR:24.40%vs 8.22%,P=0.015).High preoperative fasting plasma glucose[DFS:Hazard ratio(HR)=2.684,P<0.001;OS:HR=2.105,P=0.019;CRR:HR=2.214,P=0.005]and glycosylated hemoglobin levels(DFS:HR=2.344,P=0.006;OS:HR=2.119,P=0.021;CRR:HR=2.449,P=0.009)indicated significantly poor prognosis and high CRR,while T2DM history did not(DFS:HR=1.178,P=0.327;OS:HR=0.933,P=0.739;CRR:HR=0.997,P=0.581).CONCLUSION Increased preoperative fasting plasma glucose and glycosylated hemoglobin levels,but not T2DM history,were identified as risk factors associated with poor postoperative outcomes and high CRR in patients with stage III CC.

关键词： Colon cancer Chemoresistance Diabetes mellitus Prognosis Type II diabetes mellitus

Cerebral fat embolism following autologous fat injection in facial reconstruction:A case report

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World Journal of Clinical Cases 2025年第2期13卷 50-58页

作者： Xiu-ying Chen Fa Shen Chang Cheng Yu-Han wang Wen-Chao Cheng De-zhi Yuan Wen Huang Department of Neurology Chongqing Emergency Medical CenterChongqing University Central HospitalChongqing 400000China Department of Neurology Xinqiao HospitalThe Army Medical University(Third Military Medical University)Chongqing 400000China

BACKGROUND Autologous fat injection in facial reconstruction is a common cosmetic *** cerebral fat embolism(CFE)as a complication is rare,it carries serious health *** SUMMARY We present a case of a 29-year-old female patient who developed acute CFE following facial fat filling *** the surgery,the patient experienced symptoms including headache,nausea,vomiting,and difficulty breathing,which was followed by neurological symptoms such as slurred speech and left-sided *** physical examination and auxiliary investigations,including blood tests,head and neck computed tomography angiography,and cranial magnetic resonance diffusion-weighted imaging,were performed upon *** clinical diagnosis was acute cerebral embolism following facial fat filling *** included measures to improve cerebral circulation,dehydration for intracranial pressure reduction,nutritional support,and rehabilitation therapy for left limb *** patient showed a significant improvement in symptoms after 2 weeks of *** recovered left limb muscle strength to grade 5,had clear speech,and experienced complete relief of *** Our case highlights the potential occurrence of severe complications in patients undergoing fat injection in facial *** prevent these complications,plastic surgeons should enhance their professional knowledge and skills.

关键词： Cerebral fat embolism Mechanical thrombectomy Thrombolysis Steroid therapy Symptomatic treatment Case report