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Unlocking the Potential of Poly(butylene succinate)through Incorporation of Vitrimeric Network Based on Dynamic Imine Bonds

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Chinese Journal of Polymer Science 2024年第10期42卷 1414-1424,I0006页

作者： Shan-Song Wu hui-juan lu Yi-Dong Li Shui-Dong Zhang Jian-Bing Zeng Chongqing Key Laboratory of Soft-Matter Material Manufacturing School of Chemistry and Chemical EngineeringSouthwest UniversityChongqing400715China School of Mechanical and Automotive Engineering South China University of TechnologyGuangzhou510640China

Poly(butylene succinate)(PBS)exhibits many advantages,such as renewability,biodegradability,and impressive thermal and mechanical properties,but is limited by the low melt viscosity and strength resulted from the linear *** address this,vitrimeric network was introduced to synthesize PBS vitrimers(PBSVs)based on dynamic imine bonds through melt polymerization of hydroxyl-terminated PBS with vanillin derived imine containing compound and hexamethylene diisocyanate using trimethylolpropane as a crosslinking *** with different crosslinking degrees were synthesized through changing the content of the crosslinking *** effect of crosslinking degree on the thermal,theological,mechanical properties,and stress relaxation behavior of the PBSVs was studied in *** results demonstrated that the melt viscosity,melt strength,and heat resistance were enhanced substantially without obvious depression in crystallizability,thermal stability,and mechanical properties through increasing crosslinking *** addition,the PBSVs exhibit thermal reprocessability with mechanical properties recovered by more than 90%even after processing for three ***,PBSV with improved melt properties shows significantly improved foamability compared to commercial *** research contributes to the advancement of polymer technology by successfully developing PBS vitrimers with improved properties,showcasing their potential applications in sustainable and biodegradable materials.

关键词： Poly(butylene succinate) Vitrimer Imine bonds Foamability

Multifunctional carbon materials from rugose rose for energy storage and water purification

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Frontiers of Chemical Science and Engineering 2024年第9期18卷 1-13页

作者： Peng-hui Li hui Zhou Wen-juan Wu Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing Forestry UniversityNanjing 210037China College of Light Industry and Food Engineering Nanjing Forestry UniversityNanjing 210037China College of Chemical Engineering East China University of Science and TechnologyShanghai 200237China State Key Laboratory of Chemical Engineering Shanghai 200237China

With the advancement of social process,the resource problem is becoming more prominent,biomass materials come into being,and it is becoming more and more important to explore and prepare efficient and multifunctional biomass materials to alleviate the problems of energy storage and water *** this paper,nitrogen-doped hierarchical porous carbon materials(NRRC)were produced by one-step carbonization of withered rose as raw material and melamine as nitrogen source with KOH-activated *** resulting nitrogen-doped porous carbon material had the most abundant pores and the best microspherical graded pore structure,with a specific surface area of up to 1393 m2·g^(-1),a pore volume of 0.68 cm3·g^(-1),and a nitrogen-doped content of 5.52%.Electrochemical tests showed that the maximum specific capacitance of NRRC in the three-electrode system was 346.4 F·g^(-1)(0.5 A·g^(-1)),which was combined with favorable capacitance retention performance and cycling *** NRRC//NRRC symmetric supercapacitors were further assembled,and the maximum energy density of a single device was 23.88 Wh·kg^(-1),which still maintains excellent capacitance retention and cyclic charging/discharging *** example,the capacitance retention rate was always close to 96.27%with almost negligible capacitance loss after 10000 consecutive charge/discharge cycles(current density:10 A·g^(-1)).Regardless of the three-electrode or two-electrode system,the super capacitive performance of NRRC porous carbon materials was comparable to the electrochemical performance of many reported biomass porous carbon materials,which showed better energy storage advantages and practical application *** addition,NRRC porous carbon materials had excellent water purification *** dye adsorption test confirmed that NRRC had a high adsorption capacity(491.47 mg·g^(-1))for methylene *** undoubtedly also showed a potential and promising avenue for high value-added utilization

关键词： rose carbon adsorption electrode material electrochemical performance

Identification of four novel mutations in the HNF-1A gene in Chinese early-onset and/or multiplex diabetes pedigrees

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Chinese Medical Journal 2006年第13期119卷 1072-1078页

作者： YANG Zhen WU Song-hua ZHENG Tai-shan lu hui-juan XIANG Kun-san Shanghai Diabetes Institute Department of Endocrinology and Metabolism Shanghai No. 6 People＇s Hospital Shanghai Jiaotong University Shanghai 200233 China

Background Mutations in the hepatocyte nuclear factor-lA gene cause the type 3 form of maturity-onset diabetes of the young （MODY3）. This study was undertaken to determine mutations and sequence variations of the HN... 详细信息

关键词： maturity-onset diabetes of the young hepatocyte nuclear factor-1A gene direct sequencing

Predictive value of intracranial high-density areas in neurological function

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World Journal of Psychiatry 2024年第7期14卷 1080-1086页

作者： Zhi-juan lu Jin-Xing Lai Jing-Ru Huang Shu-Hua Xie Zhao-hui Lai Department of Neurology Ganzhou People’s HospitalGanzhou 341000Jiangxi ProvinceChina

BACKGROUND Intracranial high-density areas(HDAs)have attracted considerable attention for predicting clinical outcomes;however,whether HDAs predict worse neurological function and mental health remains controversial and unclear,which requires further *** this prospective study,96 patients with acute ischemic stroke(AIS)who accepted endovascular mechanical thrombectomy(EMT)were *** enrolled patients underwent cranial computed tomography(CT)examination within 24 hours after *** data in terms of National Institutes of Health Stroke Scale(NIHSS),the 3-month modified Rankin Scale(mRS),self-rating depression scale(SDS),and self-rating anxiety scale(SAS)scores were collected and compared between patients with HDAs and non-HDAs and between patients with good and poor clinical *** to patients without HDAs,patients with HDAs presented severe neurological deficits(admission NIHSS score:18±3 vs 19±4),were more likely to have post-stroke disabilities(mRSlusion,HDAs on CT images predicted poor prognosis and severe depressive and anxiety symptoms in patients with AIS who underwent EMT.

关键词： Acute ischemic stroke Endovascular mechanical thrombectomy High-density areas Depressive disorder Anxiety disorder

Research on the Distributed Data Mining Cloud Framework Oriented Internet of Things

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International Journal of Technology Management 2014年第8期 106-108页

作者： Guan Wei lu hui-juan Chen Jing-Jing Wu Jie College of Modem Science and Technology China Jiliang University Hangzhou 310018 Zhejiang China College of Information Engineering China Jiliang University Hangzhou 310018 Zhejiang China Department of Computer Science Hong Kong Baptist University Kowloon Tong Hong Kong Department of Computer and Information Sciences College of Science and Technology Temple University Philadelphia 19122 PA USA

The rapid development of Internet of Things imposes new requirements on the data mining system, due to the weak capability of traditional distributed networking data mining. To meet the needs of the Internet of Things, this paper proposes a novel distributed data-mining model to realize the seamless access between cloud computing and distributed data mining. The model is based on the cloud computing architecture, which belongs to the type of incredible nodes.

关键词： cloud computing data mining Intemet of things

Relationship of plasma creatinine and lactic acid in type 2 diabetic patients without renal dysfunction

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Chinese Medical Journal 2009年第21期122卷 2547-2553页

作者： LIU Fang lu Jun-xi TANG Jun-ling LI Li lu hui-juan HOU Xu-hong JIA Wei-ping XIANG Kun-san Department of Endocrinology and Metabolism Shanghai Jiao Tong University Affiliated Sixth People's Hospital Shanghai Institute for Diabetes Shanghai Clinical Center of Diabetes Shanghai 200233 China

Background As one of most widely-used biguanides, metformin can induce the lactic acidosis in patients with renal failure though its incidence is very low. However, lactic acidemia induced by metformin was reported in patients without renal dysfunction. It is unclear that whether lactatemia exists in diabetic patients with normal renal function in Chinese or not and its influencing factors. This study aimed to clarify the influencing factors of lactic acid, and identify a practiced clinical marker to predict the hyperlactacidemia in diabetics with normal renal function. Methods The clinical data and venous blood samples of 1024 type 2 diabetic patients treated with （n=426） or without metformin （n=599） were collected. The lactic acid was assayed by enzyme-electrode method. The biochemical indexes included creatinine （Cr） and hepatase were measured with enzymatic procedures. The lactic acid concentrations of different Cr subgroups were compared, and the correlation and receiver operating characteristic curve analysis were used. Results The mean lactic acid level and the proportion of hyperlactatemia of metformin group were significantly higher than that of non-metformin group （P 〈0.01）, but no lactic acidosis was found in all patients. The correlation and multiple stepwise regression analysis indicated that the correlative factors of lactic acid in turn were Cr, metformin, alanine transferase （ALT）, body mass index （BMI）, Urine albumin （Ualb）, and blood urea nitrogen （BUN） in total patients; and Cr, ALT, BMI and BUN in non-metformin treated patients; Cr and ALT in metformin-group. The lactate concentration increased with the increment of Cr levels, and reached its peak at Cr 111-130 μmol/L, and the optimal cutoff of Cr in predicting hyperlactacidemia was 96.5 μmol/L. Conclusions Metformin can increase the incidence of lactatemia in type 2 diabetic patients without renal dysfunction. Cr, ALT, and BMI are independent associated factors of blood lactic acid levels. There

关键词： diabetes mellitus lactic acid creatinine metformin cutoff

投笔从戎:清末民初知识分子的一种职业走向解读

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河南师范大学学报（哲学社会科学版） 2008年第1期35卷 102-106页

作者：逯慧娟河南理工大学文法学院河南焦作454003

1901年清政府开始全面的革新运动——"新政",军事改革是这次改革的重头戏,由此导致社会对军人的极大需求。另一方面,科举制度的废除,中断了知识分子的晋升之路,由科举维系的知识分子的单一职业格局开始分化。在多元、复杂的分化过程中,... 详细信息

1901年清政府开始全面的革新运动——"新政",军事改革是这次改革的重头戏,由此导致社会对军人的极大需求。另一方面,科举制度的废除,中断了知识分子的晋升之路,由科举维系的知识分子的单一职业格局开始分化。在多元、复杂的分化过程中,大量知识分子一改过去"贱军"心理,积极投身军队,在社会上形成了从军热潮。造成这一局面的原因主要有三个:一是"学而优则仕"传统价值观的惯性影响;二是部队给予的优厚待遇成为吸引人才的另一个原因;三是"修身、齐家、治国、平天下"的传统道德观念的影响,使得许多人积极投身军队,为实现自己的理想寻求一种捷径。知识分子积极投身军队,对军队建设起了积极的推动作用,也改变了传统的社会风气,但也由此造成了军人干政的不利局面。

关键词：近代知识分子军事改革从军

Effect of early stepwise cardiopulmonary rehabilitation on function and quality of life in sepsis patients

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World Journal of Clinical Cases 2024年第4期12卷 729-736页

作者： Ming-hui Zheng Wen-Jun Liu juan Yang Division of Cardiovascular First Ward Departments of Internal Medicine Liyuan HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430077Hubei ProvinceChina Department of Respiratory Medicine PuRen Hospital Affiliated to Wuhan University of Science and Technology/Respiratory MedicineWuhan 430000Hubei ProvinceChina Department of Cardiology Huanggang Central HospitalHuanggang 438000Hubei ProvinceChina

BACKGROUND Sepsis,as a non-limiting host infection disease,can be accompanied by serious complications such as organ failure,which seriously threatens patient quality of *** To investigate the effect of early stepwise cardiopulmonary rehabilitation on cardiopulmonary function and quality of life in patients evacuated from mechanical ventilation with *** A total of 80 patients with sepsis who were hospitalized in our hospital from January 2021 to January 2022 were selected and divided into the observation group(n=40)and the control group(n=40)according to the random number table *** observation group was treated with early stepwise cardiopulmonary rehabilitation,and the control group was treated with a conventional treatment *** function indexes(central venous pressure,cardiac troponin I,B-type brain natriuretic peptide),lung function indicators(diaphragmatic mobility,changes in central venous oxygen saturation,oxygenation index),and quality of life(Quality of Life Evaluation Scale)were compared between the two groups after *** After treatment,the central venous pressure,diaphragm mobility,central venous oxygen saturation,oxygenation index,and Quality of Life Evaluation Scale scores in the observation group were higher than those in the control group,and the differences were statistically significant(PluSION Early stepwise cardiopulmonary rehabilitation can effectively enhance cardiac and pulmonary function and improve the quality of life in patients evacuated from mechanical ventilation with sepsis.

关键词： Stepwise cardiopulmonary rehabilitation Sepsis Evacuation of mechanical ventilation Cardiopulmonary function Quality of life

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新型电流型CMOS三值施密特电路设计

浙江大学学报（工学版） 2006年第7期40卷 1141-1145页

作者：杭国强陆慧娟浙江大学信息与电子工程学系浙江杭州310027 中国计量学院计算机科学与技术系浙江杭州310018

以开关信号理论为指导,建立了实现电流型CMOS三值施密特电路中阈值控制电路的电流传输开关运算.在此基础上提出了一种新的电流型CMOS三值施密特电路设计,该电路可提供三值电流和电压输出信号.电路的两个电流回差值的大小只需通过改变MO... 详细信息

以开关信号理论为指导,建立了实现电流型CMOS三值施密特电路中阈值控制电路的电流传输开关运算.在此基础上提出了一种新的电流型CMOS三值施密特电路设计,该电路可提供三值电流和电压输出信号.电路的两个电流回差值的大小只需通过改变MOS管的尺寸比来调节.与以往设计相比,所提出的电路具有结构简单、回差值调整容易以及可在较低电压下工作等特点.采用TSMC 0.25μm CMOS工艺参数和1.5 V电源电压的HSPICE模拟结果验证了所提出设计方法的有效性和电路所具有的理想回差特性.

关键词：开关信号理论电流型CMOS电路多值逻辑施密特电路