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Preparation of Activated Carbon Based on Straw and Its Adsorption on Sunset Yellow

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Meteorological and Environmental Research 2022年第3期13卷 1-4页

作者： Yan HAO Mei liU Xueyan CHENG Jiaxing liU chuanhui GENG Zhenzhen li Baikang ZHU School of Marine Science&Technology Zhejiang Ocean UniversityZhoushan 316022China Zhejiang Provincial Key Laboratory of Petrochemical Pollution Control Zhejiang Ocean UniversityZhoushan 316022China School of Naval Architecture and Maritime Zhejiang Ocean UniversityZhoushan 316022China

The removal effect of sunset yellow by the activated carbon prepared by modified straw was studied, and the effects of adsorption temperature, adsorption time, adsorption capacity, solution salinity and solution pH on the removal effect of sunset yellow were analyzed. After being soaked in acid and alkali, the stalks and leaves of the straw were carbonized and modified at 200-700 ℃. The results show that the adsorption effect of the leaves soaked in alkali was the best when the carbonization temperature was 700 ℃. As the adsorption temperature was 30-40 ℃, the adsorption effect of sunset yellow was the best. With the increase of adsorption time, the removal rate of sunset yellow first increased, then decreased, and finally rose again. The first critical point was about 30 min. When the dosage of activated carbon was 0.7 g, the adsorption effect of 50 ml of sunset yellow solution was the best. The optimal solution salinity was 60%. pH had a small effect on the adsorption of sunset yellow, showing a fluctuating trend.

关键词： Activated carbon Straw Adsorption Sunset yellow

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稀土高压化学

中国稀土学报 2020年第3期38卷 359-382,I0002页

作者：朱船辉孙忠雄李满荣中山大学化学学院广东广州510275

稀土元素因其丰富的电子结构,表现出很多独特的物理化学性能,在光学、磁性和电学等领域具有巨大的应用价值。压力作为自然界中基本的热力学变量,可以引起结构相变以及新的亚稳态稀土化合物的合成,高压下稀土元素及其化合物表现出许多新... 详细信息

稀土元素因其丰富的电子结构,表现出很多独特的物理化学性能,在光学、磁性和电学等领域具有巨大的应用价值。压力作为自然界中基本的热力学变量,可以引起结构相变以及新的亚稳态稀土化合物的合成,高压下稀土元素及其化合物表现出许多新奇的物理化学性能,如室温超导、铁磁半金属等。简要概述稀土元素及其化合物高压研究进展,包括压致相变、化学合成等,以及高压对其磁性、光学等物理性质的影响,展示了高压化学在稀土领域的应用前景。

关键词：稀土元素稀土化合物高压化学

兼顾行人保护与低速碰撞的前保险杠吸能器设计

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汽车工程 2016年第3期38卷 296-301页

作者：肖志余传辉莫富灏杜敏李凡湖南大学汽车车身先进设计制造国家重点实验室长沙410082

轿车前保险杠系统的设计需要同时满足行人碰撞与低速碰撞的要求。现代轿车设计中,通常通过在保险杠蒙皮和横梁之间增加吸能结构以满足此类要求。本文中首先提出了一种模块化的自适应轿车前保险杠X形吸能器,它可根据碰撞能量的大小,通过... 详细信息

轿车前保险杠系统的设计需要同时满足行人碰撞与低速碰撞的要求。现代轿车设计中,通常通过在保险杠蒙皮和横梁之间增加吸能结构以满足此类要求。本文中首先提出了一种模块化的自适应轿车前保险杠X形吸能器,它可根据碰撞能量的大小,通过改变自身变形特征,分阶段地提升吸能能力。接着以某车型为基础设计了该吸能器,并基于GB/T 24550—2009行人保护法规和CMVSS215低速碰撞法规要求,利用有限元分析评估了其耐撞性能,并与常用泡沫吸能器进行了对比。结果表明:不同于传统泡沫吸能结构,该吸能器在行人碰撞和低速碰撞时会产生不同的变形模式,可以更好地兼顾两种不同要求。

关键词：保险杠吸能器行人保护低速碰撞

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试论后金主称帝的时间

满族研究 2005年第1期 63-67页

作者：周传慧李自然宁夏大学图书馆宁夏银川750021 宁夏大学政法学院 750002

关于后金称帝的时间,一直是学术界争论的活题。本文通过大量详实的资料,论证出朝鲜人赵庆男1 61 9年前后说更为允妥:从而否定了国内学术界的1 63 6年说法。

关键词：后金主称帝时间学术争论

LCP enhance chemotherapy cytotoxicity through modulation of anti-tumor immune microenvironment

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LCP enhance chemotherapy cytotoxicity through modulation of ...

Pressure-Induced Intermetallic Charge Transfer and Semiconductor- Metal Transition in Two-Dimensional AgRuO_(3)

第十届全国免疫学学术大会

作者： Yanwei Shen Chunwen Tan Jingjing li chuanhui Peng Ying Yuan Shu Zheng The Cancer Institute (Key Laboratory of Cancer Prevention and Intervention China National Ministry of Education Key Laboratory of Molecular Biology in Medical Sciences Zhejiang Province)

Background: Galectin-3(Gal-3) is an important tumor antigen and an immune modulator functioning complicated in the process of anti-tumor immunity. The expression level of Gal-3 varies in different human breast cell lines and clinical biopsy samples. The Low-Molecular-Weight Citrus-Pectin(LCP), a natural ligand of Gal-3, is reported to be capable of blocking Multiple Myeloma metastasis through blocking of Gal-3 signaling ***: In order to evaluate the LCP, a natural ligand of Gal-3, synergetic effects on enhancing 5-fluorouracil(5-FU)based chemotherapy in 4T1 murine breast cancer xenograft ***: The Balb/c wild type mice were injected 2×105 4T1 murine breast tumor cells. The 5-FU(15mg/kg·d) was given by intra-peritoneal injection as the standard chemotherapeutic strategy. And the LCP was solubilized as a 100 mg/ml suspension in sterile PBS for oral ***:(1) In vitro proliferation assay showed LCP exhibited very little growth arrest effect on 4T1 cells. With combination of 0.25 mmol/L5-FU, the LCP at the concentration of 10ug/ml showed anti-proliferative rate of 43.5% over the5-FU alone at 49.8%.(2) The in vivo murine chemotherapy model demonstrated that, the average tumor volume of 5-FU treated animals was 43.4% and the 5-FU with LCP group was 24.5% of the PBS control group at day 24.(3) Ex vivo lymphocyte analysis by flocytometry showed the LCP treatment of decreased Myeloid derived suppressive cells(MDSC)percentage in the tumor infiltrated lymphocytes, as well as in the spleen.(4) The realtime PCR experiment revealed that,the ex vivo treatment of LCP decreased the Gal-3 expression of MDSC to 58.1% of the baseline for 2 hours and bounce back to 70.9% at 8 hour ***: Our results revealed that LCP combined with cytotoxic drugs in vitro demonstrated no enhancement of growth arrest effect, however it enhanced the anti-tumor activity of chemotherapeutic drugs in vivo. The mechanism of this synergetic effect of LCP with chemoth

关键词： Low-Molecular-Weight Citrus-Pectin(LCP) Myeloid derived suppressive cells(MDSC) Galectin-3(Gal-3)

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CCS Chemistry 2023年第4期5卷 934-946页

作者： chuanhui Zhu Jinjin Yang Pengfei Shan Mei-Huan Zhao Shuang Zhao Cuiying Pei Bowen Zhang Zheng Deng Mark Croft Yanpeng Qi lihong Yang Yonggang Wang Xiaojun Kuang Long Jiang Dao-Xin Yao Jin-Guang Cheng Man-Rong li Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of ChemistrySun Yat-sen UniversityGuangzhou 510275 Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190 School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210 College of Chemistry and Bioengineering Guilin University of TechnologyGuilin 541004 Department of Physics and Astronomy RutgersThe State University of New JerseyPiscatawayNJ 08854 ShanghaiTech Laboratory for Topological Physics ShanghaiTech UniversityShanghai 201210 Shanghai Key Laboratory of High-Resolution Electron Microscopy ShanghaiTech UniversityShanghai 201210 Center for High Pressure Science and Technology Advanced Research(HPSTAR) Beijing 100094 Guangdong Key Laboratory of Magnetoelectric Physics and Devices School of PhysicsSun Yat-sen UniversityGuangzhou 510275

The intricate correlation between charge degrees of freedom and physical properties is a fascinating area of research in solid state chemistry and condensed matter ***,we report on the pressureinduced successive charge transfer and accompanied resistive evolution in honeycomb layered ruthenate AgRuO_(3).Structural revisiting and spectroscopic analyses affirm the ilmenite type R-3 structure with mixed valence cations as Ag^(+1/+2)Ru^(+4/+5)O_(3) at ambient ***-situ pressure-and temperature-dependent resistance variation reveals a successive insulatormetal-insulator transition upon pressing,accompanied by unprecedented charge transfer between Ag and Ru under applied pressure,and a further structural phase transition in the insulator region at higher *** phenomena are also corroborated by in-situ pressure-dependent Raman spectra,synchrotron X-ray diffraction,bond valence sums,and electronic structure calculations,emphasizing the dominated rare Ag2+,and near zero thermal expansion in the ab-plane in the metallic zone mostly due to the Jahn-Teller effect of d9-Ag2+.The multiple electronic instabilities in AgRuO_(3) may offer new possibilities toward novel and unconventionally physical and chemical behaviors in strongly correlated honeycomb lattices.

关键词： intermetallic charge transfer semiconductor-metal transition honeycomb layered ruthenates high pressure

动态压力对负载胰岛素样生长因子1基因兔脂肪间充质干细胞增殖能力和机械性能的影响

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中国组织工程研究 2021年第13期25卷 1982-1987页

作者：张传辉李建军杨军朝阳市中心医院骨外科辽宁省朝阳市122000 中国医科大学附属盛京医院创伤骨科辽宁省沈阳市110004

背景:脂肪间充质干细胞是目前公认的较为优秀的组织工程软骨种子细胞,基因转染技术可以有效诱导其成软骨分化,应用生物反应器模拟体内力学环境,是目前广大学者探索体外构建组织工程软骨的新思路。目的:探讨周期性动态压应力联合胰岛素... 详细信息

背景:脂肪间充质干细胞是目前公认的较为优秀的组织工程软骨种子细胞,基因转染技术可以有效诱导其成软骨分化,应用生物反应器模拟体内力学环境,是目前广大学者探索体外构建组织工程软骨的新思路。目的:探讨周期性动态压应力联合胰岛素样生长因子1基因转染对种植于壳聚糖/明胶支架中的兔脂肪间充质干细胞增殖能力和弹性模量的影响。方法:在脂质体介导下应用pcDNA3.1-IGF-1基因转染兔脂肪间充质干细胞,G418筛选,获得稳定转染的细胞株;将负载或不负载胰岛素样生长因子1基因的脂肪间充质干细胞以5×10^10 L^-1的密度接种于壳聚糖/明胶支架中培养2 d,然后分别于动态压力(2%形变,1 Hz,4 h/d)环境中或静态培养条件下培养7 d;扫描电镜、Masson三色染色及阿尔新蓝染色观察细胞/支架复合物的形态学变化,MTT法绘制细胞增殖曲线,CM-Dil荧光染料标记细胞计数评估细胞增殖效率,DMMB定量测定软骨特异性细胞外基质糖胺聚糖含量,Real time PCR法检测软骨特异性基因Ⅱ型胶原的相对表达,应用BioDynamicTM mechanical tester测量各组细胞/支架复合物不同形变时的轴线压应力,计算对应的弹性模量。结果与结论:动态压力联合胰岛素样生长因子1转染可显著提高脂肪间充质干细胞的增殖能力,细胞分布更为均匀,软骨特异性细胞外基质糖胺聚糖及胶原分泌增多,上调Ⅱ型胶原基因的表达,机械性能显著改善。单纯胰岛素样生长因子1组的细胞增殖能力和弹性模量均优于单独动态压力组,但动态压力条件下细胞在支架中分布更为均匀。结果表明,动态压力与胰岛素样生长因子1基因转染均可显著提升兔脂肪间充质干细胞的增殖能力和机械性能,二者呈协同作用。

关键词：干细胞脂肪间充质干细胞压力软骨细胞胰岛素样生长因子1 弹性模量组织工程

沸石粉和酵母细胞壁对仔鸡黄曲霉毒素感染的防治作用

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中国饲料 2019年第16期 25-29页

作者：李新刘传辉李凌商丘市畜产品质量监测检验中心

文章旨在评估两种吸附剂沸石粉与沸石粉+酵母细胞壁预防肉鸡黄曲霉毒素的效果。试验将550只1d肉仔鸡随机分为11组,每组5个重复,每个重复10只鸡。11个处理中包括3个没有添加吸附剂的日粮(含0、1和2mg/kg黄曲霉毒素B1),8个处理组日粮含1或... 详细信息

文章旨在评估两种吸附剂沸石粉与沸石粉+酵母细胞壁预防肉鸡黄曲霉毒素的效果。试验将550只1d肉仔鸡随机分为11组,每组5个重复,每个重复10只鸡。11个处理中包括3个没有添加吸附剂的日粮(含0、1和2mg/kg黄曲霉毒素B1),8个处理组日粮含1或2mg/kg黄曲霉毒素B1,添加沸石粉或沸石粉+酵母细胞壁。试验共持续21d。结果发现,随着日粮黄曲霉毒素B1水平的升高,肉鸡采食量、增重较对照组显著降低(P<0.05),肝脏重量较对照组显著提高(P<0.05)。在饲喂2mg/kg黄曲霉毒素B1日粮的仔鸡中观察到严重的肝脏损伤,病变与黄曲霉毒素病一致。日粮黄曲霉毒素B1污染显著降低了肉鸡血清葡萄糖、白蛋白、总蛋白、钙、磷含量和碱性磷酸酶活力(P<0.05)。1mg/kg黄曲霉毒素B1污染日粮中添加沸石粉或沸石粉+酵母细胞壁均可缓解毒素对肉鸡生长和肝脏病变的影响(P<0.05)。但2mg/kg黄曲霉毒素B1污染日粮中添加沸石粉+酵母细胞壁对毒素的影响无显著缓解效果,其中2mg/kg黄曲霉毒素B1污染日粮添加沸石粉的预防效果显著高于沸石粉+酵母细胞壁(P<0.05)。结果表明:日粮黄曲霉B1毒素污染显著降低了肉鸡的采食量、体增重,并导致高死亡率,同时导致肉鸡肝脏增大,肝功能受损。在本实验条件下,沸石粉和沸石粉+酵母细胞壁均能在较低黄曲霉毒素B1污染水平(1mg/kg)下有效缓解其负面影响,但沸石粉对2mg/kg黄曲霉毒素B1的缓解作用强于酵母细胞壁。

关键词：黄曲霉毒素肉鸡沸石粉酵母细胞壁防治

太阳能-热泵联合装置设计及香菇干燥实验研究

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太阳能学报 2020年第11期41卷 149-155页

作者：朱传辉李保国杨会芳罗权权李亚伦上海理工大学能源与动力工程学院上海200093

研发设计一种新型太阳能-热泵联合干燥装置,并进行干燥香菇实验验证。设计一种空气式太阳集热器,采用双通螺旋直流真空管,其内设置有高性能相变蓄热材料的蓄能芯。干燥室采用夹层多点送风并设计扰流风扇,增加送风均匀性。太阳能干燥系... 详细信息

研发设计一种新型太阳能-热泵联合干燥装置,并进行干燥香菇实验验证。设计一种空气式太阳集热器,采用双通螺旋直流真空管,其内设置有高性能相变蓄热材料的蓄能芯。干燥室采用夹层多点送风并设计扰流风扇,增加送风均匀性。太阳能干燥系统和热泵系统可以单独或联合工作。在50、60℃、风速为2~3 m/s条件下,将香菇从初始水分含量91%干燥至国标规定的安全储藏水分≤13%,分别采用热泵干燥、太阳能干燥和太阳能热泵联合干燥,干燥时间分别为300~270 min、280~260 min和270~240 min。实验结果分析表明,该文所设计的太阳能热泵联合干燥系统的性能系数(COP)在3.50~4.35之间,能源利用率在0.58~0.78之间。

关键词：太阳集热器太阳能干燥空气源热泵相变材料香菇干燥太阳能-热泵联合干燥装置