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Effect of Preload Force on Heat Generation of Li(Ni_(0.8)Co_(0.1)Mn_(0.1))O_(2)/SiO_(x)-C System Batteries:The Discharge Process

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Journal of Thermal Science 2024年第5期33卷 1809-1825页

作者： LIN Chunjing LAI Zhenxing BAI Guangli MA Biao WEI Zhen qi chuang LIU Shiqiang Key Laboratory of Advanced Manufacturing Technology for Automobile Parts Ministry of EducationChongqing University of TechnologyChongqing 400054China China Auto Research New Energy Vehicle Inspection Center(Tianjin)Co Tianjin 300300China

Lithium-ion batteries(LIBs)undergo various degradation phenomena such as material decomposition,structural change and uneven lithium ion distribution during long-term cycles,which would affect their performance and *** order to improve the performance of the LIBs during their life cycle,preload force is preset when the batteries are *** preload forces will in turn affect the cycle life and heat generation of the *** order to address this issue,this work carries out charge/discharge cycle tests on a NCM811 battery under different preload *** calorimetry tests are performed to investigate the battery heat generation under different states of health(SOHs)and preload *** on the test results,an empirical prediction model for heat generation power as a function of SOH is *** show that when the preload force is 5 N·m,the battery capacity decreases in the slowest rate and the average heat generation power is the *** in peaks of the incremental capacity curve can be used to characterize the loss of lithium at the electrode,which in turn characterizes the change of heat generation power of the *** average heat generation power is mainly affected by the SOH,going through a period of trough with the decrease of the SOH and continuing to increase after crossing the critical *** general,these findings emphasize the relationship between preload force,SOH and heat generation power,which is helpful for the judgment of optimal preload to improve the efficiency of LIBs.

关键词： lithium ion battery cyclic aging preload force heat generation characteristic

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In vitro maturation of human oocytes maintaining good development potential for rescue intracytoplasmic sperm injection with fresh sperm

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World Journal of Clinical Cases 2022年第7期10卷 2166-2173页

作者： Yun-qiao Dong chuang-qi Chen Yu-qiang Huang Dun Liu Xi-qian Zhang Feng-Hua Liu Department of Assisted Reproductive Center Guangdong Women and Children HospitalGuangzhou 511400Guangdong ProvinceChina

BACKGROUND The outcomes of the use of commercial in vitro maturation(IVM)medium to culture immature oocytes obtained from conventional ovulation induction,followed by rescue intracytoplasmic sperm injection(RICSI),are not *** is thus difficult to widely adopt this approach in clinical ***,it is necessary to explore methods for improving the clinical outcome of *** To study the effect of sperm on the developmental potential of in vitro-matured oocytes in conventional *** This was a retrospective study of patients whose immature oocytes were harvested from conventional oocyte stimulation cycles and underwent ICSI at our hospital between June 2018 and August *** was performed using sperm collected on the day of oocyte harvest(old)and sperm collected on the day of RICSI(fresh)and oocytes matured in vitro after 24 h of culture in conventional *** rates of in vitro oocyte maturation,normal fertilization,normal cleavage,day-3 top-quality embryos,and useful blastocyst formation were compared between the two *** In total,102 germinal vesicle(GV)-stage immature oocytes were cultured in the old sperm *** the fresh sperm group,122 GV-stage immature oocytes were collected and cultured in vitro for 24 *** were no significant differences in the general conditions of males and females between the two groups(P>0.05).The oocyte maturation,normal fertilization,and normal cleavage rates of the old and fresh groups were 51.0%vs 55.7%,61.5%vs 64.7%,and 93.8%vs 93.2%,*** of the rates differed significantly(P>0.05)between the two ***,the day-3 top-quality embryo and useful blastocyst rates of the old and fresh sperm groups were 16.6%vs 63.4%;6.67%vs 34.6%,*** day-3 top-quality embryos and useful blastocyst rates of the old sperm group were significantly lower than those of the fresh group(P<0.05).CONCLUSION In vitro maturation with conventional culture medium combined with the use of

关键词： In vitro oocyte maturation Sperm injections Intracytoplasmic Semen analysis In vitro fertilization Human oocyte

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Effect of somatostatin in advanced gastric cancer after D2 radical gastrectomy

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World Journal of Gastroenterology 2014年第40期20卷 14927-14933页

作者： Wu Song Jian-Hui Chen Xin-Hua Zhang Jian-Bo Xu Yu-Long He Shi-Rong Cai Fang-Hai Han chuang-qi Chen Gastric Cancer Center Sun Yat-Sen University Division of Gastrointestinal Surgery The First Affiliated Hospital Sun Yat-Sen University

AIM:To study the effect of somatostatin in patients with advanced gastric cancer who received D2 lymphadenectomy and vagina vasorum ***:Using a prospective,single-blind,placebocontrolled design,patients with advanced gastric cancer were randomized into a study group(n=61)and a control group(n=59).Patients in the study group were given somatostatin for 5-7 d starting 6 h after the operation,and patients in the control group were given normal *** and nonoperative complications in the perioperative period,as well as differenttypes of postoperative drainage in the two groups were ***:There was no significant difference between the study group and the control group for preoperative clinicopathological *** found no significant difference between the two groups for the overall incidence of complications,but a lower percentage of peritoneal effusion was observed in the treatment group(1.6%vs 10.2%,P<0.05).There were no significant differences between the two groups in the incidence of postoperative pancreatic dysfunction and chylous ***,there were significant differences in the amylase concentration in drainage fluid,volume and duration of drainage,volume and duration of chylous fistula and peritoneal drainage,and volume and duration of gastric tube *** study group did not show any increase in mean hospitalization cost and the cost reduced when the postoperative complications ***:Postoperative somatostatin reduces volume and duration of surgical drainage and related *** may improve safety of gastric cancer surgery,reducing postoperative complications and promoting recovery.

关键词： Advanced gastric cancer Somatostatin Complications

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Rare case of an abdominal mass: Reactive nodular fibrous pseudotumor of the stomach encroaching on multiple abdominal organs

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World Journal of Clinical Cases 2014年第4期2卷 111-119页

作者： Xiao-Jiang Yi chuang-qi Chen Yin Li Jin-Ping Ma Zhi-Xun Li Shi-Rong Cai Yu-Long He Department of Gastrointestinal Surgery and Colorectal Surgery the First Affiliated Hospital Sun Yat-Sen University Department of Pathology the First Affiliated Hospital Sun Yat-Sen University

Reactive nodular fibrous pseudotumor(RNFP), which presents abdominal clinical manifestations and malignant radiographic results, usually requires radical resection as the treatment. However, RNFP has been recently described as an extremely rare benign postinflammatory lesion of a reactive nature, which typically arises from the sub-serosal layer of the digestive tract or within the surrounding mesentery in association with local injury or inflammation. In addition, a postoperative diagnosis is necessary to differentiate it from the other reactive processes of the abdomen. Furthermore, RNFP shows a good prognosis without signs of recurrence or metastasis. A 16-year-old girl presented with a 3-mo history of epigastric discomfort, and auxiliary examinations suggested a malignant tumor originating from the stomach; postoperative pathology confirmed RNFP, and after a 2-year follow-up period, the patient did not display any signs of recurrence. This case highlights the importance of preoperative pathology for surgeons who may encounter similar cases.

关键词： Reactive nodular fibrous pseudotumor Post-inflammatory lesion Digestive tract Mesentery Good prognosis

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Systemic immune-inflammation index for predicting prognosis of colorectal cancer

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World Journal of Gastroenterology 2017年第34期23卷 6261-6272页

作者： Jian-Hui Chen Er-Tao Zhai Yu-Jie Yuan Kai-Ming Wu Jian-Bo Xu Jian-Jun Peng chuang-qi Chen Yu-Long He Shi-Rong Cai Gastrointestinal Surgery Center The First Affiliated HospitalSun Yat-sen University Gastric Cancer Center Sun Yat-sen University

AIM To investigate the clinical significance of preoperative systemic immune-inflammation index(SII) in patients with colorectal cancer(CRC). METHODS A retrospective analysis of 1383 cases with CRC was performed following radical surgery. SII was calculated with the formula SII =(P × N)/L, where P, N, and L refer to peripheral platelet, neutrophil, and lymphocyte counts, respectively. The clinicopathological features and follow-up data were evaluated to compare SII with other systemic inflammation-based prognostic indices such as the neutrophil-lymphocyte ratio(NLR) and platelet-lymphocyte ratio(PLR) in patients with *** The optimal cut-off point for SII was defined as 340. The overall survival(OS) and disease-free survival(DFS) were better in patients with low NLR, PLR, and SII(P < 0.05). The SII was an independent predictor of OS and DFS in multivariate analysis. The area under the receiver-operating characteristics(ROC) curve for SII(0.707) was larger than those for NLR(0.602) and PLR(0.566). In contrast to NLR and PLR, SII could effectively discriminate between the TNM subgroups. CONCLUSION SII is a more powerful tool for predicting survival outcome in patients with CRC. It might assist the identification of high-risk patients among patients with the same TNM stage.

关键词： Colorectal cancer Systemic immune-inflammation index Neutrophil-lymphocyte ratio Plateletlymphocyte ratio Prognosis

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运用平衡计分卡成功实施企业战略

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商业研究 2006年第14期 84-88页

作者：齐闯黑龙江大学黑龙江哈尔滨150074

平衡计分卡从财务、顾客、内部运作流程、以及学习与成长四个角度选择测评指标,对战略进行精确的描述,并为经理人员提供一个全面的框架,用以把公司的战略目标转化为一套系统的绩效测评指标,从而帮助企业在产品、程序、顾客和市场开发等... 详细信息

平衡计分卡从财务、顾客、内部运作流程、以及学习与成长四个角度选择测评指标,对战略进行精确的描述,并为经理人员提供一个全面的框架,用以把公司的战略目标转化为一套系统的绩效测评指标,从而帮助企业在产品、程序、顾客和市场开发等关键领域取得突破性进展,把公司的长期战略和短期行动联系起来,有效地保证企业目标的战略性实施。成功实施平衡计分卡的要素包括高层管理人员的决心、支持和参与;跨部门团队合作;链接企业战略和绩效管理、能力发展、浮动薪资;以及把人力资源管理专员提升到战略高度,使之成为企业高层管理人的合作伙伴,保证平衡计分卡的成功实施。

关键词：平衡计分卡战略绩效考核

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Pathological diagnosis is maybe non-essential for special gastric cancer: Case reports and review

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World Journal of Gastroenterology 2013年第24期19卷 3904-3910页

作者： Wu Song Chun-Yu Chen Jian-Bo Xu Jin-Ning Ye Liang Wang chuang-qi Chen Xin-Hua Zhang Shi-Rong Cai Wen-Hua Zhan Yu-Long He Department of Gastrointestinal and Pancreatic Surgery the First Affiliated Hospital of Sun Yat-sen University

Histopathological results are critical for the diagnosis and surgical decision regarding gastric cancer. How-ever, opposite opinions from radiology and pathology can sometimes affect clinical decisions. The two cases reported in this article were both highly suspected as gastric cancer by clinical manifestations and radiologic findings, although both showed negative results in the first biopsy examination. One was confirmed as gastric cancer by the time of the 6 th biopsy, while the other was still negative even after 8 biopsies. With a definite pathologic result and the agreement of the patient for the latter case, both of them finally received surgery. Postoperative pathological examination revealed find-ings that were the same as Borrmann type Ⅳ gastric cancer. We believed that duplicate biopsies under ra-diologic guidance were necessary for highly suspected gastric cancer cases in the absence of a definite pathol-ogy result, and patients should be under close follow-up. We propose that, if gastric cancer is highly sus-pected when typical radiology changes of widely diffuse gastric parietal lesions suffice to exclude lymphoma and other similar situations, and even in absence of a posi-tive biopsy result, a diagnostic laparotomy under lapa-roscopy and even radical gastrectomy may be reason-ably performed by an experienced gastric cancer center with the agreement of the patient after being decided by a multidisciplinary discussion team.

关键词： Gastric cancer Pathology Diagnosis Bor-rmann type Ⅳ

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水平圆管内R1234yf流动冷凝传热特性研究

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化学工程 2022年第8期50卷 46-50页

作者：齐创李瑛张良齐昊上海理工大学能源与动力工程学院上海市动力工程多相流动与传热重点实验室上海200093

为了将低GWP制冷剂应用于客车空调,对R1234yf在5 mm水平光滑管内的流动冷凝传热特性进行了实验研究。实验研究工况为饱和温度30℃和40℃,平均干度0.1—0.96,质量流速100—600 kg/(m^(2)·s)。研究结果表明:R1234yf管内传热系数在低质量... 详细信息

为了将低GWP制冷剂应用于客车空调,对R1234yf在5 mm水平光滑管内的流动冷凝传热特性进行了实验研究。实验研究工况为饱和温度30℃和40℃,平均干度0.1—0.96,质量流速100—600 kg/(m^(2)·s)。研究结果表明:R1234yf管内传热系数在低质量流速[<200 kg/(m^(2)·s)]下受干度和流速的影响不明显,随着流速的增大逐渐依赖蒸汽流速和干度,这表明管内主要传热机制由受温差较大影响的自然对流过渡至受流速影响较大的强制对流,引入了等效雷诺数Re_(eq)来划分这2种传热机制。饱和温度为30℃时,相同工况下R1234yf传热系数比R134a低3.7%—14.3%。对Cavallini和Bashar 2种关联式预测的传热系数与实验值进行了对比,Bashar关联式表现出较好的预测效果,平均绝对偏差为14%。

关键词： R1234yf 流动冷凝传热机制传热系数关联式预测

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生产性服务业集聚与城市经济增长关系研究——基于35个大中城市的实证分析

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技术经济与管理研究 2019年第12期 125-130页

作者：王帅吴传琦首都经济贸易大学经济学院首都经济贸易大学劳动经济学院北京100070

经济发展和产业结构演进使得生产性服务业布局在城市经济发展过程中越发重要,本文在构建生产性服务业集聚影响城市经济增长理论模型的基础上,利用全国35个大中城市的面板数据实证考察了生产性服务业集聚对城市经济增长的影响及其行业异... 详细信息

经济发展和产业结构演进使得生产性服务业布局在城市经济发展过程中越发重要,本文在构建生产性服务业集聚影响城市经济增长理论模型的基础上,利用全国35个大中城市的面板数据实证考察了生产性服务业集聚对城市经济增长的影响及其行业异质性。研究结论表明,生产性服务集聚对现代城市经济增长存在显著的促进作用,相较于传统生产性服务业部门,以金融业、科学研究和技术服务业为代表的现代生产性服务业集聚发展对经济增长的促进作用更为强劲;同时,就城市发展现阶段而言,生产性服务业集聚的经济增长效应并没有呈现出显著的阶段性特征,线性发展特征仍占主导。因此,生产性服务业集聚发展的重点在于继续强化集聚发展趋势,提高现代服务业发展水平,促进其内部产业结构的优化升级。

关键词：产业集聚经济增长产业结构城市经济

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Meta-analysis of pancreaticoduodenectomy prospective controlled trials： pancreaticogastrostomy versus pancreaticojejunostomy reconstruction

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Chinese Medical Journal 2012年第21期125卷 3891-3897页

作者： MA Jin-ping PENG Lin qiN Tao LIN Jian-wei CHEN chuang-qi CAI Shi-rong WANG Liang HE Yu-long Department of Gastrointestinal and Pancreatic Surgery the First Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong 510080China Department of General Surgery Guangdong General HospitalGuangdong Academy of Medical SciencesGuangzhouGuangdong 510080China Department of Hepatobiliary Pancreatic Surgery the People's Hospital of Zhengzhou UniversityZhengzhouHenan 450003China

Background Pancreaticogastrostomy （PG） has been proposed as an alternative to pancreaticojejunostomy （PJ）, assuming that postoperative complications are less frequent. The aim of this research was to compare the s... 详细信息

关键词： pancreaticoduodenectomy," pancreaticojejunostomy pancreaticogastrostomy," prospective controlled trials,"meta-analysis

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