陶瓷杂志征稿启事

《陶瓷》杂志主要包括建筑卫生陶瓷、工业陶瓷、日用陶瓷、先进陶瓷、电子陶瓷及陶瓷机械等无机非金属材料的新技术,新工艺、新产品、新设备等的研制和应用。辟有“综述”、“研究与开发”、“生产应用”、“窑炉与热工”、“卫生陶瓷”、“建筑陶瓷”、“陶瓷艺术”、“模具与模具材料”、“生物陶瓷及特种陶瓷”、“企业生产管理”、“质量与标准”、“色釉料”、“耐火材料”、“陶瓷机械”、“粉体技术”“建筑工程”、“设计与施工”、“室内装饰与装修”、“工程管理”等面向读者、贴近市场的栏目,广受读者喜爱。     

1981年《氯碱工业》总目录

革、,产、l夕、、产‘、产、J︸、J‘qU匕以nOR︸11)住产、沙‘﹄‘r、产t、J论、子‘、八‘,自弓自,﹄内匕内n蒸发工段旋流板及喷淋预冷器小结一“““”””·81氯气热能回收“一···一·”··”·”“·~··一“······一’“·811五11︺.1,1OU︸匕R︺八料盐水中硫酸根络合滴定的改进·”“”””“二从化验废水中回收白银一”““”“···““”“”” 氢气余热利用的报告““···~·”,.””···一~·“·“”一 改良型(斜板)道尔沉清桶””“··~······”·””“学实验 、了、,了、产‘、了‘、产、少双 1…     

综合新闻

上海华谊19项产品荣获上海名牌去年12月31日,2004年上海名牌产品张榜,上海华谊企业氯碱公司“申峰”和“电化”、轮胎公司“双线、回力”、吴泾公司“吴泾”等4项产品的品牌被评为上海名牌产品百强;树脂厂公司“绿宝”、赛璐珞厂“三鹿”、染化八厂“工农”、新光化工厂“铁锚”、助剂厂公司“天坛”、长风化工厂“畅飞”等6项产品的品牌被评为生产资料类上海名牌,其中“畅飞”为2004年新申报;制皂公司“上海”“白丽”“扇牌”、白象天鹅电池公司“白象”、回力鞋业公司“回力”、染料所公司“狮头”、振华造漆厂“飞虎”、上海造漆厂“眼…     

征稿启事

1《贵州化工》系公开发行的正式期刊,中国标准刊号:ISSN 1008-9411/CN52-1090/TQ’本刊以报道国内外化工科学及生产经验为主,设有“政策研究”、“综述”、“科研与设计”、“生产经验”、“分析与测试”、“化工机械与电气”、“环境保护”、“教育天地”、“知识介绍”、“企业改革与企业管理”、“信息摘编”等栏目,欢迎来稿。     

自主知识产权影响中国塑机业——访华南理工大学副校长、聚合物新型成型装备国家工程研究中心主任瞿金平

问:我国塑机发展经历了哪些阶段?在发展过程中存在哪些弊端?答:我国塑料加工工业从起步、发展日趋完备,从过程来看,过去走的路子是“引进”、“消化”、“吸收”、“仿制”。这在初期发展阶段是必须的,但现在工业技术水平一日千里,在大的国际环境下,如果我们还走“引进”、“消化”、“吸收”、“仿制”的老路子,恐怕跟不上技术的步伐。这种老路子使我国的塑料加工工业掉进一个恶性循环。“引进”、“消化”、“吸收”,我们也进步了,但是别人在飞速发展;于是就继续“再引进”、“再消化”、“再吸收”、“再仿制”,进入恶性循环。那么,怎样…     

办好《山东化工》促进全省化工科技进步——贺《山东化工》创刊30周年

在“文革”中的 1 972年 ,山东省化学石油工业局 ,具有远见卓识 ,凭着非凡的胆识和勇气 ,在动乱的年代 ,支持创办了山东省化学工业的第一本刊物———《山东化工》。 30年过去了 ,《山东化工》现已发展壮大成为具有一定影响的国内外公开发行的正式刊物 ,每期 60余页正文 ,设有“科研与开发”、“生产与应用”、“专论与综述”、分析与测试”、“企业论坛”、“改革巡礼”、“人物专访”、“科技简讯”、“经济与市场”、“管理初探”、“企业快报”、“市场动态”、“综合信息”等 1 0余个栏目 ,读者涉及化工及相关行业的各级决策管理人员、…     

紫砂壶意贵在创新——陈鸣远“仙鹤桃纹壶”之感赏

紫砂壶“小世界,大乾坤”,可谓汇集器皿造型艺术的宝库．其间蕴藏着丰富多彩的完美器型,从“汉扁壶”、“掇球壶”、“仿古壶”、“线云壶”到“菱花壶”、“鱼化龙壶”、“合菊壶”、“风卷葵壶”等艺术造型,汇集着历代艺人的创作智慧,历经数百年来的反复提炼、修改,日臻完善,沿传至今,虽古犹新。     

风神轮胎公司八项外观设计获专利授权

近日,风神轮胎公司的“HN237”、“HN254”、“HN3Q2”、“HN326”、“HN368”、“HN369”、“HN509”、“A2366”等八项轮胎花纹外观设计获得了国家知识产权局颁发的外观设计专利证书。截止目前,风神轮胎获外观专利授权量已达103项。     

景德镇推出"景德瓷宴"

为喜迎千年华诞,弘扬陶瓷文化,充分挖掘地方名菜佳肴,景德镇市财政宾馆策划推出景德瓷宴活动。他们通过精心策划,力图把历史悠久,具有浓厚地方特色的饮食文化与灿烂的陶瓷文化结合起来,在挖掘、整理景德镇地区传统名菜名点的基础上,认真加以总结、提高,向海内外宾客推出景德瓷宴。闪亮登场的景德瓷宴共有大菜16道,点心四个。大菜中既有传统的“船板肉”、“知四肉”、“金相玉”、“臭豆腐”,又有创新菜“玲珑虾”、“鸭脚板”、“荷香鸡”、“煮鲤鱼”等,点心有“珠山汤包”、“浮梁碱水粑”、“清汤泡糕”、“戴家弄饺子粑”。尤其值得一…     

征稿启事

1．《贵州化工》系公开发行的正式期刊,本刊以报道国内外化工科技及生产经验与创新为主,设有“专论与综述”、“科研与设计”,“分析与测试”、“生产经验与创新”,“化工设备与电气”、“化工环保”、“企业管理”、“知识介绍”等栏目,欢迎来稿。     

Group II Metabotropic Glutamate Receptors Reduce Apoptosis and Regulate BDNF and GDNF Levels in Hypoxic-Ischemic Injury in Neonatal Rats

Birth asphyxia causes brain injury in neonates, but a fully successful treatment has yet to be developed. This study aimed to investigate the effect of group II mGlu receptors activation after experimental birth asphyxia (hypoxia-ischemia) on the expression of factors involved in apoptosis and neuroprotective neurotrophins. Hypoxia-ischemia (HI) on 7-day-old rats was used as an experimental model. The effects of intraperitoneal application of mGluR2 agonist {"type":"entrez-nucleotide","attrs":{"text":"LY379268","term_id":"1257807854","term_text":"LY379268"}}LY379268 (5 mg/kg) and the specific mGluR3 agonist NAAG (5 mg/kg) (1 h or 6 h after HI) on apoptotic processes and initiation of the neuroprotective mechanism were investigated. {"type":"entrez-nucleotide","attrs":{"text":"LY379268","term_id":"1257807854","term_text":"LY379268"}}LY379268 and NAAG applied shortly after HI prevented brain damage and significantly decreased pro-apoptotic Bax and HtrA2/Omi expression, increasing expression of anti-apoptotic Bcl-2. NAAG or {"type":"entrez-nucleotide","attrs":{"text":"LY379268","term_id":"1257807854","term_text":"LY379268"}}LY379268 applied at both times also decreased HIF-1α formation. HI caused a significant decrease in BDNF concentration, which was restored after {"type":"entrez-nucleotide","attrs":{"text":"LY379268","term_id":"1257807854","term_text":"LY379268"}}LY379268 or NAAG administration. HI-induced increase in GDNF concentration was decreased after administration of {"type":"entrez-nucleotide","attrs":{"text":"LY379268","term_id":"1257807854","term_text":"LY379268"}}LY379268 or NAAG. Our results show that activation of mGluR2/3 receptors shortly after HI prevents brain damage by the inhibition of excessive glutamate release and apoptotic damage decrease. mGluR2 and mGluR3 agonists produced comparable results, indicating that both receptors may be a potential target for early treatment in neonatal HI.     

Therapeutic Targeting of Ovarian Cancer Stem Cells Using Estrogen Receptor Beta Agonist

Ovarian cancer (OCa) is the deadliest gynecologic cancer. Emerging studies suggest ovarian cancer stem cells (OCSCs) contribute to chemotherapy resistance and tumor relapse. Recent studies demonstrated estrogen receptor beta (ERβ) exerts tumor suppressor functions in OCa. However, the status of ERβ expression in OCSCs and the therapeutic utility of the ERβ agonist {"type":"entrez-nucleotide","attrs":{"text":"LY500307","term_id":"1371032831","term_text":"LY500307"}}LY500307 for targeting OCSCs remain unknown. OCSCs were enriched from ES2, OV90, SKOV3, OVSAHO, and A2780 cells using ALDEFLUOR kit. RT-qPCR results showed ERβ, particularly ERβ isoform 1, is highly expressed in OCSCs and that ERβ agonist {"type":"entrez-nucleotide","attrs":{"text":"LY500307","term_id":"1371032831","term_text":"LY500307"}}LY500307 significantly reduced the viability of OCSCs. Treatment of OCSCs with {"type":"entrez-nucleotide","attrs":{"text":"LY500307","term_id":"1371032831","term_text":"LY500307"}}LY500307 significantly reduced sphere formation, self-renewal, and invasion, while also promoting apoptosis and G2/M cell cycle arrest. Mechanistic studies using RNA-seq analysis demonstrated that {"type":"entrez-nucleotide","attrs":{"text":"LY500307","term_id":"1371032831","term_text":"LY500307"}}LY500307 treatment resulted in modulation of pathways related to cell cycle and apoptosis. Western blot and RT-qPCR assays demonstrated the upregulation of apoptosis and cell cycle arrest genes such as FDXR, p21/CDKN1A, cleaved PARP, and caspase 3, and the downregulation of stemness markers SOX2, Oct4, and Nanog. Importantly, treatment of {"type":"entrez-nucleotide","attrs":{"text":"LY500307","term_id":"1371032831","term_text":"LY500307"}}LY500307 significantly attenuated the tumor-initiating capacity of OCSCs in orthotopic OCa murine xenograft models. Our results demonstrate that ERβ agonist {"type":"entrez-nucleotide","attrs":{"text":"LY500307","term_id":"1371032831","term_text":"LY500307"}}LY500307 is highly efficacious in reducing the stemness and promoting apoptosis of OCSCs and shows significant promise as a novel therapeutic agent in treating OCa.     

包膜肥料控制释放速率的测定

分别用水浸泡法和土壤溶出率法测定了3种包膜肥料氮素的释放速率,研究了这两种测试方法的特点以及应用范围。结果表明：同一肥料在水中以及土壤中氮素的释放速率和释放模式有所不同;水浸泡法适用于水田用或者释放速率小的包膜肥料释放速率的测定,而土壤溶出率法适用于旱地上用或者释放速率大的包膜肥料释放速率的测定;水浸泡法可以快速比较不同包膜肥料的缓／控释性能,但与肥料在土壤中的实际释放期有偏差;土壤溶出率法能较好地模拟施肥的情况,但测试时间长。     

MC180295 Inhibited Epstein–Barr Virus-Associated Gastric Carcinoma Cell Growth by Suppressing DNA Repair and the Cell Cycle

DNA methylation of both viral and host DNA is one of the major mechanisms involved in the development of Epstein–Barr virus-associated gastric carcinoma (EBVaGC); thus, epigenetic treatment using demethylating agents would seem to be promising. We have verified the effect of {"type":"entrez-nucleotide","attrs":{"text":"MC180295","term_id":"1885105835","term_text":"MC180295"}}MC180295, which was discovered by screening for demethylating agents. {"type":"entrez-nucleotide","attrs":{"text":"MC180295","term_id":"1885105835","term_text":"MC180295"}}MC180295 inhibited cell growth of the EBVaGC cell lines YCCEL1 and SNU719 in a dose-dependent manner. In a cell cycle analysis, growth arrest and apoptosis were observed in both YCCEL1 and SNU719 cells treated with {"type":"entrez-nucleotide","attrs":{"text":"MC180295","term_id":"1885105835","term_text":"MC180295"}}MC180295. MKN28 cells infected with EBV were sensitive to {"type":"entrez-nucleotide","attrs":{"text":"MC180295","term_id":"1885105835","term_text":"MC180295"}}MC180295 and showed more significant inhibition of cell growth compared to controls without EBV infection. Serial analysis of gene expression analysis showed the expression of genes belonging to the role of BRCA1 in DNA damage response and cell cycle control chromosomal replication to be significantly reduced after {"type":"entrez-nucleotide","attrs":{"text":"MC180295","term_id":"1885105835","term_text":"MC180295"}}MC180295 treatment. We confirmed with quantitative PCR that the expression levels of BRCA2, FANCM, RAD51, TOP2A, and CDC45 were significantly decreased by {"type":"entrez-nucleotide","attrs":{"text":"MC180295","term_id":"1885105835","term_text":"MC180295"}}MC180295. LMP1 and BZLF1 are EBV genes with expression that is epigenetically regulated, and {"type":"entrez-nucleotide","attrs":{"text":"MC180295","term_id":"1885105835","term_text":"MC180295"}}MC180295 could up-regulate their expression. In conclusion, {"type":"entrez-nucleotide","attrs":{"text":"MC180295","term_id":"1885105835","term_text":"MC180295"}}MC180295 inhibited the growth of EBVaGC cells by suppressing DNA repair and the cell cycle.     

聚酯联组V带的研制

联组Ｖ带是由模排帘线与胶片组成的连接层将多根Ｖ带带体的顶面联为一体而形成的Ｖ带组。它使用聚酯纤维作骨架材料,联组Ｖ带较单根Ｖ带具有伸长小,传动效率高,尺寸稳定等优点。它将广泛用于各种机械设备的动力传递。     

氯化聚乙烯（CPE）在普通V带底胶中的应用研究

氯化聚乙烯与橡胶其混，用于普通Ｖ带底胶进行研究。并就各配合体系的选择及加工工艺对橡胶胶料的性能影响进行技术探索。结果表明，氯化聚乙烯与橡胶并用制造出性能良好具有优良的耐弯曲、耐疲劳、伸长率小的Ｖ带。     

云南省水稻施用硅肥肥效研究

通过小区试验及６２组同田对比示范实收亩产证实，硅肥亩施３０～５０ｋｇ，可增产稻谷５．９％～１７．１％，其处理间“Ｆ”值及“ｔ”测验垃达显著标准，其增产原因于促进秧苗早生，快发，对水稻白叶枯病可以缓解，提高稻谷的经济性状，其结论与河南省研究结果基本一致。     

半水煤气脱硫装置的设计及工艺管理

结合“888”催化剂在半水煤气脱硫工段实际使用情况,论述了催化剂的选择、以Na2CO3为碱源的催化原理、生产中工艺指标的管理及常见问题的处理。     

Downregulation of lncRNA PpL-T31511 and Pp-miRn182 Promotes Hydrogen Cyanamide-Induced Endodormancy Release through the PP2C-H2O2 Pathway in Pear (Pyrus pyrifolia)

Bud endodormancy is an important, complex process subject to both genetic and epigenetic control, the mechanism of which is still unclear. The endogenous hormone abscisic acid (ABA) and its signaling pathway play important roles in the endodormancy process, in which the type 2C protein phosphatases (PP2Cs) is key to the ABA signal pathway. Due to its excellent effect on endodormancy release, hydrogen cyanamide (HC) treatment is considered an effective measure to study the mechanism of endodormancy release. In this study, RNA-Seq analysis was conducted on endodormant floral buds of pear (Pyrus pyrifolia) with HC treatment, and the HC-induced PP2C gene PpPP2C1 was identified. Next, software prediction, expression tests and transient assays revealed that lncRNA PpL-{"type":"entrez-nucleotide","attrs":{"text":"T31511","term_id":"613609"}}T31511-derived Pp-miRn182 targets PpPP2C1. The expression analysis showed that HC treatment upregulated the expression of PpPP2C1 and downregulated the expression of PpL-{"type":"entrez-nucleotide","attrs":{"text":"T31511","term_id":"613609"}}T31511 and Pp-miRn182. Moreover, HC treatment inhibited the accumulation of ABA signaling pathway-related genes and hydrogen peroxide (H₂O₂). Furthermore, overexpression of Pp-miRn182 reduced the inhibitory effect of PpPP2C1 on the H₂O₂ content. In summary, our study suggests that downregulation of PpL-{"type":"entrez-nucleotide","attrs":{"text":"T31511","term_id":"613609"}}T31511-derived Pp-miRn182 promotes HC-induced endodormancy release in pear plants through the PP2C-H₂O₂ pathway.     

Asymmetric structure analysis of active surface-sites by in situ polarized total-reflection fluorescence EXAFS

An in situ polarization-dependent total reflection fluorescence yield EXAFS system has been developed to analyze the asymmetric structures of catalytically active metal sites on single crystal surfaces. This technique separately reveals the bonding feature parallel and perpendicular to the support surface. The systems of Cu ion on -quartz(0001), Co oxide on -alumina(0001), and Pt₄ on -alumina(0001) were investigated as model surfaces of supported catalytic systems. The location of Cu sites on -quartz(0001), the epitaxial growth mode of Co₃O₄ on -alumina(0001), and the Pt raft structure with metal-support interaction in Pt₄ / -alumina(0001) were observed.