Chemical Analysis of Activated Carbon from Bull and Cow Horns Pyrolysis to Be Used as Antidotes

The purpose of this study is to compare the results of chemical analysis of two types of activated from the pyrolysis of bull horn and that of cow. Six samples were used to measure pH, carbon, calcium and to determine adsorbent power. The pH was measured at a temperature of 20˚C using an “ANION 7010 ionomer” pH meter, the carbon (C) content was analyzed using a “EURO EA 3000” analyzer. and the electronic balance: “Sartorius CP-2P”, calcium (Ca) was analyzed using a DFS-8 spectrograph. For the adsorbency test, the 0.15% methylene blue R solution was used. At the end of this study, we found that the activated carbon from the bull horn demonstrated a carbon content that is higher than that of the cow horn (20.79% against 15.63%), activated carbon of cow horn is richer in calcium than that of bull horn (16.27% against 3.69%) and then the pH. The cow horn is higher than that of the bull horn (7.43 versus 6.5). For the adsorbent power, the sample (75% bull horn and 25% cow horn) was recorded with the greatest adsorbent power. Thus, from this study, it can be recommended as an activated carbon antidote to be used for poisonings treatment.

Experimental study of the effect of wear parameters on the wear behavior of A356 alloy/cow horn particulate composites

Experimental study of the effect of wear parameters on the wear behaviour of A356 alloy reinforced with cow horn particles(CHp) produced by spark plasma sintering was investigated. Experiments were conducted based on the plan of experiments generated through Taguchi's(L9) technique. Tribometer was used for the wear test and Scanning electron microscope was used to analyse the worn scar of the samples. The results shows that, A356 alloy reinforced with CHp exhibited better dry sliding wear resistance than the unreinforced alloy. Wear rate decreased as the amount of CHp reinforcement increased in the matrix. It was found that, the optimum level of the factors with minimized the wear loss were obtained at: wt%CHp(20%), applied load(10 N), sliding velocity(3 m/s) and sliding distance(2000 m). It can be seen that the wear track of the sample are(D ? 0.81 and L = 42.85 mm) and(D ? 0.54 and L= 27.03 mm) for A356 alloy and composites at optimum condition respectively. The results showed that the addition of cow horn particles as reinforcing materials in A356 alloy composites increased the wear resistance of the composites greatly.

仿牛角结构薄壁管吸能特性仿真分析

为了提高薄壁金属管的耐撞性能,通过相似性分析,选择牛角作为生物原型。提取出决定牛角耐撞性能的结构特征参数,并应用到薄壁管的设计中,从而设计出一种具有牛角结构特征的仿生管。应用非线性有限元法对仿生管的变形模式和能量吸收进行了仿真分析,并与四晶胞锥管和普通圆锥管进行了对比,结果表明:在轴向碰撞时,仿生管的变形模式为渐进叠缩稳态变形,其比吸能为46.2kJ/kg,分别比四晶胞锥管和普通锥管的比吸能提高了1.3和1.8倍,仿生管的耐撞性能随着芯体壁厚的增加而提高;在横向碰撞时,与四晶胞锥管和普通圆锥管相比,仿生管具有较高的耐撞性能,其比吸能为10.4kJ/kg。将牛角结构特征应用到薄壁管的设计中,可以有效提高薄壁管的耐撞性能,为车辆吸能元件的研发提供参考。

辣椒新品种桂牛5号的选育

桂牛5号是以自交系Ca1-5-1为母本,以自交系Ca1-3-8为父本配制而成的牛角椒一代杂种。中早熟,植株生长势较强,连续坐果能力强;果实长牛角形,果长25~30 cm,果肩宽3.5~4.0 cm,单果质量125 g左右;青熟果黄绿色,老熟果鲜红色,商品性好,微辣,果实干物质含量7.88%,VC含量1530 mg·kg^-1,辣椒素含量0.023%,宜鲜食,耐贮运;田间对病毒病、炭疽病、疫病的抗性强于对照黄美龙,露地栽培鲜椒产量3500 kg·(667 m^2)^-1左右,适宜广西、广东等地春、秋露地种植。

大果型牛角椒新品种鼎优大椒的选育

鼎优大椒是以长羊角椒自交系M36为母本,以牛角椒自交系F6为父本配制而成的一代杂交种。该品种长势健壮,中早熟,果实粗长、牛角形,皮色亮绿,果面光滑顺直,微辣,抗病性强。鼎优大椒平均果长和单果质量分别比对照康大601增加5.25 cm和72.5 g,2013-2014年区域试验中平均每667 m2产量分别比对照康大601极显著增加12.12%和14.98%。鼎优大椒适于河南、江苏、安徽、四川、云南、海南等地进行早春保护地、秋延后保护地、露地栽培。

牛角椒新品种青翠的选育

青翠是以26-1-5单1-1-1A为母本,R05-40为父本选育的早熟高产优质牛角椒一代杂交种。始花节位10节左右,果实长牛角形,表面光亮、顺直,果实硬度好,果色由深绿色转鲜红色,果纵径18.2 cm,果横径2.64 cm,果肉厚0.3 cm,果型指数6.9,单果质量40 g左右。果皮薄,肉质脆,味辣,耐储运,商品性好,高抗炭疽病,抗疫病,耐病毒病,每667 m^2产鲜椒2 000 kg左右。适合于春季提早设施栽培、露地丰产栽培或高山反季节栽培。