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CFD simulation of pumping ventilation in a three-story isolated building with internal partitioning:Effects of partition widths,heights and locations

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Building Simulation 2024年第2期17卷 267-284页

作者： Huai-Yu Zhong Jie Sun Chao Lin Song-Heng Wu Jin Shang Hideki Kikumoto Fu-ping qian Carlos Jimenez-Bescos Fu-Yun Zhao School of Energy and Environment Anhui University of TechnologyMa-An-ShanAnhui Province243002China State Key Laboratory of Green Building in Western China Xi’an University of Architecture&TechnologyXi’anShaanxi ProvinceChina School of Power and Mechanical Engineering Wuhan UniversityWuhanHubei Province430072China Institute of Industrial Science The University of Tokyo4-6-1 KomabaMeguro-kuTokyo153-8505Japan School of Built and Natural Environment University of DerbyDerbyUK

Pumping ventilation(PV),a special single-sided ventilation(SSV),has been certified as an effective strategy to improve the air exchange rate of ***,most studies targeted on the single space,and few studies have been focused on the effect of internal partitioning on *** paper aims to evaluate the ventilation performance of PV influenced by different configurations of internal *** fluid dynamics(CFD)simulation was used to predict the flow fields and ventilation *** width(w/H),height(h/H)and location(d/H)are the three main internal partition parameters considered in this *** simulation results showed that the total,mean and fluctuating ventilation rates all decrease with wider internal *** normalized total ventilation rate decreases by 7.6%when w/H is increased from 50%to 75%.However,the reduction rate is only 0.23%between w/H=0 and 25%,and only 0.61%between w/H=25%and 50%.The ventilation rate is hardly reduced by increasing the partition width when w/H50%.Increasing the partition height will reduce the mean ventilation rate but promote the fluctuating and total ventilation rate in some *** increase of total ventilation rate by 1.4%is observed from h/H=50%to 75%.The ventilation rate is larger when the internal partition is attached to the leeward or windward *** total,mean and fluctuating ventilation rates for d/H=50%are relatively higher than d/H=0 by 1.5%,3.1%and 0.8%,*** the internal partition should be mounted attached to the windward wall so as to obtain the greatest pumping ventilation *** periodicity of pumping flow oscillation and pumping frequency are independent of the partition *** peak power of pumping flow is the lowest for the widest internal partition and is negatively affected by the partition height,but it generally has a positive correlation with the distance between the partition and leeward wa

关键词： pumping ventilation single-sided ventilation internal partitioning periodic oscillation ventilation rate

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Human pluripotent stem cell-derived kidney organoids:Current progress and challenges

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World Journal of Stem Cells 2024年第2期16卷 114-125页

作者： Hong-Yan Long Zu-ping qian Qin Lan Yong-Jie Xu Jing-Jing Da Fu-Xun Yu Yan Zha Graduate School Zunyi Medical UniversityZunyi 563000Guizhou ProvinceChina Department of Laboratory Medicine Guizhou Provincial People’s HospitalGuiyang 550002Guizhou ProvinceChina Department of Nephrology Guizhou Provincial People’s HospitalGuiyang 550002Guizhou ProvinceChina Key Laboratory of Diagnosis and Treatment of Pulmonary Immune Diseases National Health CommissionGuizhou Provincial People’s HospitalGuiyang 550002Guizhou ProvinceChina

Human pluripotent stem cell(hPSC)-derived kidney organoids share similarities with the fetal ***,the current hPSC-derived kidney organoids have some limitations,including the inability to perform nephrogenesis and lack of a corticomedullary definition,uniform vascular system,and coordinated exit path-way for urinary ***,further studies are required to produce hPSC-derived kidney organoids that accurately mimic human kidneys to facilitate research on kidney development,regeneration,disease modeling,and drug *** this review,we discussed recent advances in the generation of hPSC-derived kidney organoids,how these organoids contribute to the understanding of human kidney development and research in disease ***,the limitations,future research focus,and applications of hPSC-derived kidney organoids were highlighted.

关键词： Kidney Organoids Human pluripotent stem cell Development Vascular system Disease modeling

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One More Stepo Taken Towards Picking up Second Pearl

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船舶经济贸易 2024年第6期 73-76页

作者： qian ping Lin Geng CSSC Dalian Shipbuilding First LNG Carrier Undocked

The first ship of 175,000 m3 large LNG carriers built by Dalian Shipbuilding for China Merchants Energy Shipping Co Ltd smoothly undocked,one step closer to taking the second“Pearl on the Crown”for the shipbuilding *** ship is the first LNG carrier contracted in the history of Dalian Shipbuilding,marking the fact that Dalian Shipbuilding had officially entered the large LNG carrier construction domain,and taken an important step in the transformation and upgrading to achieve high-quality development.

关键词： Pearl smoothly upgrading

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Pathologically successful conversion hepatectomy for advanced giant hepatocellular carcinoma after multidisciplinary therapy:A case report and review of literature

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World Journal of Gastrointestinal Oncology 2024年第4期16卷 1647-1659页

作者： Ju-Hang Chu Lu-Yao Huang Ya-Ru Wang Jun Li Shi-Long Han Hao Xi Wen-Xue Gao Ying-Yu Cui Ming-ping qian Department of General Surgery Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai 200072China Department of Interventional and Vascular Surgery Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai 200072China Department of Pathology Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai 200072China Clinical Research Management Office Shanghai Tenth People’s HospitalShanghai 200072China Department of Cell Biology Institute of Medical GeneticsState Key Laboratory of CardiologyTongji University School of MedicineShanghai 200331China

BACKGROUND Hepatocellular carcinoma(HCC)is one of the leading causes of death due to its complexity,heterogeneity,rapid metastasis and easy recurrence after surgical *** demonstrated that combination therapy with transcatheter arterial chemoembolization(TACE),hepatic arterial infusion chemotherapy(HAIC),Epclusa,Lenvatinib and Sintilimab is useful for patients with advanced *** SUMMARY A 69-year-old man who was infected with hepatitis C virus(HCV)30 years previously was admitted to the hospital with abdominal *** computed tomography(CT)revealed a low-density mass in the right lobe of the liver,with a volume of 12.9 cm×9.4 cm×15 cm,and the mass exhibited a“fast-in/fast-out”pattern,with extensive filling defect areas in the right branch of the portal vein and an alpha-fetoprotein level as high as 657 ng/***,he was judged to have advanced *** treatment,the patient received three months of Epclusa,three TACE treatments,two HAIC treatments,three courses of sintilimab,and twenty-one months of *** the third month of treatment,the patient developed severe side effects and had to stop immunotherapy,and the Lenvatinib dose had to be *** pathological diagnosis indicated a complete *** patient recovered well after the operation,and no tumor recurrence was *** Multidisciplinary conversion therapy for advanced enormous HCC caused by HCV infection has a significant *** drug adjustments should be made during any treatment according to the patient's tolerance to treatment.

关键词： Hepatocellular therapy Conversion hepatectomy Interventional therapy Epclusa Lenvatinib Sintilimab Case report

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Dysbiosis promotes recurrence of adenomatous polyps in the distal colorectum

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World Journal of Gastrointestinal Oncology 2024年第8期16卷 3600-3623页

作者： Li-Li Yin ping-qian Qi Yun-Fei Hu Xiao-Jun Fu Rui-Shan He Meng-Meng Wang Yan-Juan Deng Su-Yi Xiong Qi-Wen Yu Jin-ping Hu Lv Zhou Zhi-Bin Zhou Ying Xiong Huan Deng The Affiliated Rehabilitation Hospital Jiangxi Medical CollegeNanchang UniversityNanchang 330006Jiangxi ProvinceChina The Fourth Affiliated Hospital Jiangxi Medical CollegeNanchang UniversityNanchang 330006Jiangxi ProvinceChina The Second College of Clinical Medicine Jiangxi Medical CollegeNanchang UniversityNanchang 330006Jiangxi ProvinceChina Tumor Immunology Institute Nanchang UniversityNanchang 330006Jiangxi ProvinceChina Department of General Medicine The Second College of Clinical MedicineJiangxi Medical CollegeNanchang UniversityNanchang 330031Jiangxi ProvinceChina The Ministry of Education Basic Research and Innovation Center for the Targeted Therapeutics of Solid Tumors Jiangxi Medical CollegeNanchang UniversityNanchang 330031Jiangxi ProvinceChina

BACKGROUND Colorectal polyps,which are characterized by a high recurrence rate,represent preneoplastic conditions of the *** to unclear mechanisms of pathogenesis,first-line therapies for non-hereditary recurrent colorectal polyps are limited to endoscopic *** recent studies suggest a mechanistic link between intestinal dysbiosis and polyps,the exact compositions and roles of bacteria in the mucosa around the lesions,rather than feces,remain *** To clarify the composition and diversity of bacteria in the mucosa surrounding or 10 cm distal to recurrent intestinal *** Mucosal samples were collected from four patients consistently with adenomatous polyps(Ade),seven consistently with non-Ade(Pol),ten with current Pol but previous Ade,and six healthy individuals,and bacterial patterns were evaluated by 16S rDNA *** discriminant analysis and Student’s t-tests were used to identify the genus-level bacteria differences between groups with different colorectal polyp ***’s correlation coefficients were used to evaluate the correlation between intestinal bacteria at the genus level and clinical *** The results confirmed a decreased level of probiotics and an enrichment of pathogenic bacteria in patients with all types of polyps compared to healthy *** changes were not restricted to the mucosa within 0.5 cm adjacent to the polyps,but also existed in histologically normal tissue 10 cm distal from the *** differences in bacterial diversity were observed in the mucosa from individuals with normal conditions,Pol,and *** abundance of Gram-negative bacteria,including Klebsiella,Plesiomonas,and Cronobacter,was observed in Pol group and Ade group,suggesting that resistance to antibiotics may be one risk factor for bacterium-related harmful ***,age and gender were linked to bacteria changes,indicating the potential involvement of sex hormone

关键词： Dysbiosis Biopsy Polyp Bacteria Colorectum

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LINC00472通过下调miR-155-5p表达抑制口腔鳞癌细胞增殖、迁移和侵袭

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实用口腔医学杂志 2024年第4期40卷 513-519页

作者：钱萍徐茹霞苏州市第九人民医院口腔科 215200

目的:探究长链非编码RNA(lncRNA)LINC00472通过靶向微小RNA-765(miR-155-5p)在口腔鳞癌(OSCC)细胞增殖、迁移和侵袭中的作用及分子机制。方法:生物信息学预测和双荧光素酶报告基因验证LINC00472与miR-155-5p的关系。采用qRT-PCR检测40例... 详细信息

目的:探究长链非编码RNA(lncRNA)LINC00472通过靶向微小RNA-765(miR-155-5p)在口腔鳞癌(OSCC)细胞增殖、迁移和侵袭中的作用及分子机制。方法:生物信息学预测和双荧光素酶报告基因验证LINC00472与miR-155-5p的关系。采用qRT-PCR检测40例OSCC组织样本及SCC-15细胞系中LINC00472和miR-155-5p表达水平。将SCC-15细胞分为对照组、LINC00472过表达组、miR-155-5p过表达组和LINC00472过表达+miR-155-5p过表达组。用MTT法、划痕实验和Transwell法检测细胞的增殖、迁移和侵袭能力。用qRT-PCR和western blotting检测细胞钙黏附蛋白E(E-Cadherin)、波形蛋白(Vimentin)和基质金属蛋白酶9(MMP9)的表达。结果:miR-155-5p是LINC00472的直接靶基因。OSCC组织和SCC-15细胞中LINC00472低表达(P<0.01),而miR-155-5p高表达(P<0.01),二者表达呈负相关性(r=-0.766,P<0.01)。与对照组比较,LINC00472过表达组SCC-15细胞的增殖、迁移、侵袭减弱,Vimentin和MMP9表达减少、E-cadherin表达增加(P<0.01);miR-155-5p过表达组SCC-15细胞的增殖、迁移、侵袭能力增强,Vimentin和MMP9表达增加、E-cadherin表达减少(P<0.01)。miR-155-5p过表达可逆转过表达LINC00472对OSCC细胞增殖、迁移和侵袭等的作用。结论:LINC00472抑制OSCC的发生发展,LINC00472/miR-155-5p调控轴的发现可能为OSCC提供潜在的治疗靶点。

关键词： LINC00472 口腔鳞癌 miR-155-5p 迁移侵袭

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壁纸发霉检测评估技术在工程上的应用

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上海建材 2024年第3期 29-34页

作者：钱平上海建科检验有限公司上海200100

随着目前建筑技术的日益成熟,建筑室内的整体精装修也日渐成为新房交房的标准配置。目前使用壁纸产品作为墙面装饰的室内装修逐渐增多,壁纸拥有非常广泛的设计选择,能够充分满足不同人群的需求,其丰富的色彩也可以快速打造出不同的家居... 详细信息

随着目前建筑技术的日益成熟,建筑室内的整体精装修也日渐成为新房交房的标准配置。目前使用壁纸产品作为墙面装饰的室内装修逐渐增多,壁纸拥有非常广泛的设计选择,能够充分满足不同人群的需求,其丰富的色彩也可以快速打造出不同的家居感受。而且壁纸拥有价格适宜、应用范围较广、装修时间短的性能特点,受到了百姓的喜爱。但是其施工难度高,潮湿后易损坏,需要肃清污垢避免腐蚀,不适宜淋浴区域。本文通过实际案例,把壁纸质量检测评估技术应用于实际工程,为壁纸产品在装修后产生问题的原因与解决措施提供了强有力的参考依据。

关键词：精装修发霉对比试验菌源条件

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sTREM-1 as promising prognostic biomarker for acute-on-chronic liver failure and mortality in patients with acute decompensation of cirrhosis

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World Journal of Gastroenterology 2024年第9期30卷 1177-1188页

作者： Song-Man Yu Hai Li Guo-Hong Deng Xian-Bo Wang Xin Zheng Jin-Jun Chen Zhong-Ji Meng Yu-Bao Zheng Yan-Hang Gao Zhi-ping qian Feng Liu Xiao-Bo Lu Yu Shi Jia Shang Ruo-Chan Chen Yan Huang Department of Infectious Diseases Xiangya HospitalCentral South UniversityChangsha 410000Hunan ProvinceChina Department of Gastroenterology Renji HospitalShanghai Jiao Tong University School of MedicineShanghai 200127China Department of Infectious Diseases Southwest HospitalThird Military Medical University(Army Medical University)Chongqing 400038China Center of Integrative Medicine Beijing Ditan HospitalCapital Medical UniversityBeijing 100020China Department of Infectious Diseases Institute of Infection and ImmunologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430020Hubei ProvinceChina Department of Infectious Diseases Nanfang HospitalSouthern Medical UniversityGuangzhou 510515Guangdong ProvinceChina Department of Infectious Disease Taihe HospitalHubei University of MedicineShiyan 442009Hubei ProvinceChina Department of Infectious Diseases The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510630Guangdong ProvinceChina Department of Hepatology The First Hospital of Jilin UniversityChangchun 130021Jilin ProvinceChina Department of Liver Intensive Care Unit Shanghai Public Health Clinical CentreFudan UniversityShanghai 200093China Tianjin Institute of Hepatology Nankai University Second People's HospitalTianjin 300192China Infectious Disease Center The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830054Xinjiang Uygur Autonomous RegionChina The State Key Laboratory for Diagnosis and Treatment of Infectious Diseases The First Affiliated Hospital of School of MedicineZhejiang UniversityHangzhou 310003Zhejiang ProvineChina Department of Infectious Diseases Henan Provincial People's HospitalZhengzhou 463599Henan ProvineChina Department of Infectious Diseases Hunan Key Laboratory of Viral HepatitisXiangya HospitalCentral South UniversityChangsha 110051Hunan ProvineChina

BACKGROUND Acute decompensation(AD)of cirrhosis is associated with high short-term mortality,mainly due to the development of acute-on-chronic liver failure(ACLF).Thus,there is a need for biomarkers for early and accurate identification of AD patients with high risk of development of ACLF and *** triggering receptor expressed on myeloid cells-1(sTREM-1)is released from activated innate immune cells and correlated with various inflammatory *** To explore the prognostic value of sTREM-1 in patients with AD of *** A multicenter prospective cohort of 442 patients with cirrhosis hospitalized for AD was divided into a study cohort(n=309)and validation cohort(n=133).Demographic and clinical data were collected,and serum sTREM-1 was measured at *** enrolled patients were followed-up for at least 1 *** In patients with AD and cirrhosis,serum sTREM-1 was an independent prognosis predictor for 1-year survival and correlated with liver,coagulation,cerebral and kidney failure.A new prognostic model of AD(P-AD)incorporating sTREM-1,blood urea nitrogen(BUN),total bilirubin(TBil),international normalized ratio(INR)and hepatic encephalopathy grades was established and performed better than the model for end-stage liver disease(MELD),MELD-sodium(MELD-Na),chronic liver failure-consortium(CLIF-C)ACLF and CLIF-C AD ***,sTREM-1 was increased in ACLF and predicted the development of ACLF during first 28-d *** ACLF risk score incorporating serum sTREM-1,BUN,INR,TBil and aspartate aminotransferase levels was established and significantly superior to MELD,MELD-Na,CLIF-C ACLF,CLIF-C AD and P-AD in predicting risk of ACLF *** Serum sTREM-1 is a promising prognostic biomarker for ACLF development and mortality in patients with AD of cirrhosis.

关键词： Soluble triggering receptor expressed on myeloid cell-1 Acute decompensation Cirrhosis Acute-on-chronic liver failure Prognostic biomarker

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电连接器用聚氨酯胶密封件贮存可靠性统计模型的加速试验验证与评估

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中国机械工程 2024年第5期35卷 886-894页

作者：钱萍陈驰陈文华吴山奇郭明达浙江理工大学浙江省机电产品可靠性技术研究重点实验室杭州310018

针对电连接器用聚氨酯胶密封件在长贮条件下的寿命评估问题,从机理层面分析了聚氨酯胶密封件内聚破坏和边界破坏导致性能下降的原因。依据从机理层面建立的电连接器用聚氨酯胶密封件贮存可靠性统计模型,利用聚氨酯胶密封件温湿度综合应... 详细信息

针对电连接器用聚氨酯胶密封件在长贮条件下的寿命评估问题,从机理层面分析了聚氨酯胶密封件内聚破坏和边界破坏导致性能下降的原因。依据从机理层面建立的电连接器用聚氨酯胶密封件贮存可靠性统计模型,利用聚氨酯胶密封件温湿度综合应力加速退化试验数据,综合应用粒子群优化算法和回归分析、AD检验及拟合优度等检验方法,从数据统计层面验证了电连接器用聚氨酯胶密封件失效物理方程和退化轨迹模型的合理性。利用扫描电镜和能谱分析验证了失效机理分析的正确性。最后,利用所建模型评估了电连接器用聚氨酯胶密封件在贮存环境下的可靠寿命。

关键词：电连接器密封失效机理加速试验统计检验可靠性评估

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健康城市视角下轨道交通站域空间更新研究——以苏州轨道交通11号线白河潭站为例

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城市建筑空间 2024年第6期31卷 2-8页

作者：平茜张毅杉苏州园林设计院股份有限公司苏州园林设计院股份有限公司雄安分院

在城市更新背景下,研究城市轨道交通建设如何融入健康城市建设理念,对打造高质量的健康生活公共空间具有重要意义。研究明确站域空间的概念及特征,阐述其城市更新路径,选取苏州轨道交通11号线白河潭站作为典型案例,从环境条件、市民需... 详细信息

在城市更新背景下,研究城市轨道交通建设如何融入健康城市建设理念,对打造高质量的健康生活公共空间具有重要意义。研究明确站域空间的概念及特征,阐述其城市更新路径,选取苏州轨道交通11号线白河潭站作为典型案例,从环境条件、市民需求、保障制度3个方面提出健康环境体系构建、健康生活空间营造及制度保障体系建立策略,探索健康城市视角下轨交站域空间更新路径。

关键词：城市更新健康城市站域空间

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