本文提出了用轧钢废酸处理高锰酸钾生产过程中产生的废渣—锰泥—制取工业级碳酸锰的方法。其流程可分为三段:（1）还原浸出与沉铁;（2）浸出液的净化;（3）工业级碳酸锰的制备。 在第一段中,只要控制好轧钢废酸中的[H+]/[Fe2+]比就可使浸出、沉铁同时进行,使沉铁的碱用量大大减少,加Na2S除去浸出除铁液中其它重金属。用NH4HCO3制取MnCO3避免水中Ca2+带入MnCO3。所得碳酸锰符合工业级碳酸锰部颁标准的要求

《电路》课程教学资源（课件讲稿）L3-1-2 §1-7 受控电源（非独立源，controlled source or dependent source）§1-8 基尔霍夫定律（Kirchhoff’s Laws）第二章 电阻电路的等效变换（线性）§2-1 引言 §2-2 电路的等效变换 §2-3 电阻的串联和并联

通过适当的非真空冶炼+电渣重熔工艺,制备了含Cr的Fe3Al基金属间化合物合金.实验发现,选择适当的热输入工艺参数,电渣重熔过程极大地降低了Fe3Al基金属间化合物合金中的S,O,H,P等杂质元素的含量,改善了析出相的大小与分布.铸锭具有良好的热加工性能,经锻造和中温热机械处理后,纵向室温延伸率分别超过8%和10%,屈服强度超过400MPa,断裂强度达到700 MPa,力学性能与同类真空冶炼大体积材料的性能相当

比较了镁和稀土的球化能力及效果。当稀土残留量与镁残留量之比为3:1时,两种球化剂的球化能力相等。原铁水成份为C ≥ 40%,C·E ≥ 57%,稀土处理后,铁水中S ≤ 0.01%,RE ≥ 0.1%时,白口倾向与镁处理结果没有差别。在100kg铁水包内进行稀土喷射冶金的结果表明,稀土处理脱硫速度快,效率高,脱硫限度接近热力学平衡常数。所得铁水中终硫含量都在0.01%以下,有利于获得良好的球化效果。将硅铁粉与稀土混合喷入可使脱硫、球化和孕育3个过程一次完成,这也是传统方法不具备的特点

利用热力学计算软件FactSage计算出CaO-SiO2-Al2O3-MnO四元系各成分的活度数据,并通过热力学计算分析了帘线钢获得良好变形能力的CaO-SiO2-Al2O3-MnO四元系夹杂物生成所需的条件,验证了本文所介绍方法的可行性.指出为得到塑性区的CaO-SiO2-Al2O3-MnO系夹杂物,要控制CaO-SiO2-Al2O3-MnO四元系夹杂物中Al2O3为20%,LF精炼炉中钢液的酸溶铝[Al]s含量应小于3×10-6,溶解氧含量应在2.0×10-5~6.0×10-5之间

is a vector equation that relates the magnitude and direction of the force vector, to the magnitude and direction of the acceleration vector. In the previous lecture we derived expressions for the acceleration vector expressed in cartesian coordinates. This expressions can now be used in Newton's second law, to produce the equations of motion expressed in cartesian coordinates

1. Unit 1 Language in mission Text A An impressive English lesson 2. Unit 2 College — The ladder to success? Text A The humanities: Out of date? 3. Unit 3 Discovery of a new life stage? Text A Journey through the odyssey years 4. Unit 4 Dance with love Text A College sweethearts 5. Unit 5 The money game Text A Spend or save–The student’s dilemma 6. Unit 6 Less is more Text A Door closer, are you? 7. Unit 7 Women: Making a difference Text A Women at the management level

第1章 概述 第2章 编程模型（programmer's model） 第3章 系统控制 第4章 存储器映射 第5章 异常 第6章 时钟和复位 第7章 电源管理 第8章 嵌套向量中断控制器 第9章 存储器保护单元 第10章 内核调试 第11章 系统调试 第12章 调试端口 第13章 跟踪端口的接口单元 第14章 总线接口 第15章 嵌入式跟踪宏单元 第16章 嵌入式跟踪宏单元的接口 第17章 指令周期定时

6.1 Source terms in momentum equations and two key issues in numerically solving momentum equation 6.1.1 Introduction 6.1.2 Source in momentum equations 6.1.3 Two key issues in solving flow field 6.2 Staggered grid system and discretization of momentum equation 6.2.1 Staggered grid(交叉网格) 6.2.2 Discretization of momentum equation in staggered grid 6.2.3 Interpolation in staggered grid 6.2.4 Remarks 1. Flow rate at a node 2. Density at interface 3. Conductance at interface 6.3 Pressure correction methods for N-S equation 6.3.1 Basic idea of pressure correction methods 6.3.2 Equations for velocity corrections of u ’, v ’ 6.3.3 Derivation of equation of pressure correction p ’ 6.3.4 Boundary condition for pressure correction

Unit 1 My First Job Unit 2 American Homes and British Homes Unit 3 What is in a Name? Unit 4 Doing Away with the King's English Unit 5 England as seen by Americans Unit 6 The First Day at School Unit 7 Computers Unit 8 The Missing Monarchs Unit 9 The Risks of Life Unit 10 Words can Give You Power Unit 11 The Transaction Unit 12 The Message Behind the Smile Unit 13 A Delightful Village Unit 14 The Mystery of the White Gardenia Unit 15 For or Against Smoking in Public Places Unit 1 Someone Waiting Unit 2 Football Unit 3 The Snake Bite Unit 4 He was My Father Unit 5 The English Countryside Unit 6 Suffering to Be Beautiful Unit 7 Waiting for a Call Unit 8 Secret Messages to Ourselves Unit 9 All That' s Happening in the Music World Unit 10 Teenager's Nightmare the English Countryside Unit 11 Understanding Your Owner Unit 12 Transforming Mars Unit 13 The Mud-backs Unit 14 The Japanese Ageing Suit Unit 15 Have You Seen the Tree? Unit 1 My Father Unit 2 Why My Great-uncle Gave up the Ministry