以玉米芯为原料,磷酸为活化剂,硼酸为催化剂制备活性炭。以磷酸与玉米芯的质量比、硼酸添加量、活化温度和活化时间作为考查的4个因素,以亚甲基蓝吸附值和焦糖脱色率作为活性
研究了外源多胺及其代谢抑制剂灌根处理对盐胁迫下耐盐性不同的2年生‘冬枣’ (耐盐性弱)、‘金丝小枣’ (耐盐性强)嫁接苗叶片生长发育、光合作用、叶绿体内离子稳态、类囊
东安浅成低温热液型金矿床位于黑龙江省逊克县北,赋存于中酸性火山-侵入岩、晚印支期碱长花岗岩和中燕山晚期细粒碱长花岗岩脉强硅化蚀变带中.矿石为强硅化贫硫化物金-银矿石
本文介绍了短波通信的工作原理和安徽短波通信网的建设情况。10多年来,它在安徽的防震减灾工作中发挥了重要作用,取得了可喜的成绩。
This article describes the working p
在杭州湾跨海大桥桥位地形测绘中,采用三角分带解析法进行潮位改正计算,结果表明:合理布设潮位站、合理安排测量时间,可以提高地形测量精度,正确地进行潮位计算。一般应在高平潮前后3h时间内施测,可保证浅滩不出现测量空白区。地形测绘过程中还应布设不少于主测线数量的5%的检查线,以检查其测量精度。在所测的河口湾两岸潮位明显不等时,采用三角分带解析法进行潮位改正计算,其结果合理、正确,可达到规范的要求。
This study investigated the expression and prognostic value of SHP-2 in cervical cancer caused by human papillomavirus (HPV) infection.Forty-five specimens from
This study investigated the modulatory effect of synthetic cannbinoids WIN55,212-2 on 5-HT3 receptor-activated currents (I5-Hr3) in cultured rat trigeminal gang
The expression of the interferon regulatory factor 4 (IRF-4) and the IRF-4-binding protein (IBP) in psoriatic skin lesions was investigated.The expression of IR
Descending nociceptive modulation from the supraspinal structures plays an important role in cancer-induced bone pain (CIBP).Rostral ventromedial medulla (RVM)
Objective To examine the association of visceral adiposity as measured by VFA and WC with lipid and glucose metabolic biomarkers in abdominally obese Chinese ad