Results 31 to 40 of about 23,200 (202)
Effect of Sulphide on Cutting Characteristics of Sulphur Bearing Gear Steel 20CrMnTiH
Teshugang, 2012 The cutting characteristics of common gear steel 20CrMnTiH (0. 006% S) and sulphur bearing gear steel 20CrMnTi (0. 031 % S) with different cutting speed (200 ~230 m/min) and cutting depth (0. 5 ~2 mm) have been tested and researched.
申景霞, 郑艳, 张海霞, 朱荣
doaj
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Lithium–sulfur batteries have attracted extensive interest owing to their exceptionally high theoretical energy density and environmental benignity. However, their practical performance remains severely constrained by intrinsic challenges, including the polysulfide shuttle effect and large volume expansion during cycling, which markedly ...
Long Jiang +8 more
wiley +1 more source
Shuitu Baochi Xuebao, 2007 在大田条件下,研究了不同施硫水平对不同筋力类型品种植株C-N积累与转运规律和籽粒产量及蛋白质、淀粉含量的影响.结果表明,施硫处理提高了两品种成熟期单茎籽粒重和籽粒氮素的积累量和开花前营养器官贮存干物质和氮素的转运量以及转运干物质和氮素对籽粒重和籽粒氮素积累的贡献率,与不施硫对照(S0)相比,每1 hm2施20 kg纯S(S1)处理能明显提高两品种的产量构成因素,显著提高籽粒产量,两品种分别增产10.69%和9.78%,同时极显著地提高了籽粒蛋白质和淀粉含量.大量施用硫肥(100 kg/hm2 ...
沈学善 +6 more
doaj
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Heteroatom coordination regulation is an effective strategy to enhance Fenton‐like catalysis of single atom catalysts, yet its impact on the local microenvironment of active sites still requires in‐depth investigation. Herein, Cl2–Fe–NC catalysts with axial Cl coordination are prepared.
Jing‐Hao Yan +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT The commercialization of lithium‐sulfur batteries (LSBs) faces dual challenges of sluggish sulfur redox kinetics and lithium polysulfides (LiPSs) shuttling. Herein, we demonstrate a synergistic strategy combining multidimensional structural confinement with d‐band center modulation to simultaneously suppress LiPSs diffusion and catalyze ...
Shibo Rong +8 more
wiley +1 more source
Gongye shui chuli, 2017 针对钴冶炼中排出的高镁硫酸铵废水，以硫化钠为沉淀剂去除钴镍，采用磷酸二氢铵除镁+四效逆流降膜真空蒸发法组合工艺，可综合回收硫化钴与硫化镍、磷酸铵镁、硫酸铵，其中磷酸铵镁和硫酸铵产品均达到国家一级标准，最终废水中氨氮≤ 8 mg/L。生产实践表明：年处理30万t高镁硫酸铵废水，可回收300 t硫化镍钴，1.6万t六水磷酸铵镁及4万t硫酸铵，年销售收入达600万元以上，实现了高镁氨氮废水的资源化。
刘东辉, 薛囯元, 熊以俊, 钟轩
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Gongye shui chuli, 2011 以钢铁硫酸酸洗废液、硫酸亚铁、亚硝酸钠和氧气为原料,合成出符合国家标准要求的聚合硫酸铁产品。实验研究确定的优化工艺条件为:以100 mL钢铁硫酸酸洗废液为原料,加入60 g硫酸亚铁及6 g亚硝酸钠,持续通入氧气,40℃下反应2 h,得到液体聚合硫酸铁产品。将液体聚合硫酸铁在真空度为-0.09 MPa以上,55℃干燥3 h得到固体聚合硫酸铁产品。
朱国彪, 李剑光
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四川大学学报. 自然科学版, 1991 研究了用间接原子吸收分光光度法测定微量S2-.在pH=4.5的含S2-溶液中,加入定量过量的Cu2+,使其形成CuS沉淀,多余的Cu2+用戊黄原酸钾配合,然后用甲基异丁基甲酮（MlBK）溶剂萃取配合物.不需分离,直接喷雾有机相溶液测定配合铜.S2-的灵敏度为0.01μg/mL/1％,变动系数2.7％.
洪正隆, 许原, 梁健, 黄梅
doaj
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Ti3C2Tx MXene shows significant potential in the field of electromagnetic wave absorption; however, the wave absorption performance was hindered due to the impedance mismatch, which was caused by its inherent high dielectric constant. In this work, Ti3C2Tx MXene co‐assembled with molybdenum disulfide nanosheets and carbon coating layers (MXene/
Hualong Yu +11 more
wiley +1 more source
Gongye shui chuli, 2008 对无机高分子絮凝剂进行了分类,综述了聚合氯化铝铁、聚合硫酸铝铁、聚合硅酸铝铁等阳离子复合型絮凝剂,聚合硫酸氯化铝、聚合硅酸硫酸铝、聚合硅酸氯化铝、聚合磷酸氯化铝、聚合硫酸氯化铁、聚合硅酸硫酸铁、聚合磷酸硫酸铁等阴离子复合型絮凝剂,聚合硫酸氯化铝铁、聚硅酸硫酸铝铁、聚合磷硫酸铝铁等阴阳离子复合型絮凝剂的国内研究进展,指出复合型无机高分子絮凝剂由于其净水效果好而成为当前开发的重点和今后的发展方向。
王万林
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