Results 21 to 30 of about 23,215 (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 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
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 6, June 2026.ABSTRACT With high theoretical capacity and low cost, bismuth sulfide (Bi2S3) demonstrates considerable potential as an anode for sodium/potassium‐ion batteries (SIBs/PIBs). Unfortunately, significant volume variation, low electrical conductivity, and dissolution of polysulfides drastically weaken their intrinsic merits.
Fuyu Xiao +11 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Cross‐scale assembly of metal (sub) nanoparticles and/or single atoms into millimeter/nanostructured metal monolithic catalysts (Min‐SMCs) is highly appealing for sustainable water cleanup, due to energy‐efficient catalyst recyclability, high infrastructure compatibility, and low metal‐releasing risks.
Jia‐Cheng E. Yang +4 more
wiley +1 more source
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
doaj +2 more sources
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 6, June 2026.ABSTRACT To address the demand for high‐temperature stability, broadband strong absorption, and multifunctional integration of electromagnetic wave absorbing materials in complex service environments, lightweight molybdenum disulfide (MoS2) decorated silicon carbide (SiC) nanofiber composite aerogels with a directional layered interconnected structure ...
Zhi Song +4 more
wiley +1 more source
Gongye shui chuli, 2012 目前许多废水不仅含有高浓度的氨氮,而且含有高浓度的硫酸盐,给废水治理带来难度。对同步脱硫反硝化工艺和硫酸盐型厌氧氨氧化工艺的研究进展进行了综述。同步脱硫反硝化工艺和硫酸盐型厌氧氨氧化工艺能同时脱氮和除硫,不仅无H2S排放,而且还具有节约碳源、污泥产量小和实现单质硫回收的优点。其中硫酸盐型厌氧氨氧化工艺无需曝气和有机物,具有更高的技术和经济优势,将是未来生物脱氮除硫技术的新方向。
袁怡 +4 more
doaj +2 more sources
Emerging MBenes for Energy Technologies
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The escalating global demand for sustainable energy is driving the search for transformative materials that transcend the limitations of conventional systems. Two‐dimensional (2D) transition metal borides (MBenes) have recently emerged as a compelling class, distinguished by unique electronic structures, tunable surface chemistry, and ...
Yingrui Ding +5 more
wiley +1 more source