钛及其合金在医学上的应用

分析了起动型铅酸蓄电池恒压限流充电的过程；推导出了恒压电过程电流与时间的函数式，规定了函数式的适用范围；推导出了恒压充电过程充电量的计算公式。     

电压跟随充电系统分析

介绍了一种简单实用的蓄电池充电技术。充电电压始终跟随蓄电池电压变化，并保持一恒定差值。在达到蓄电池额定电压后转化为恒压充电方式。这样既能较快地对蓄电池充电，还不会因初期充电电流太大损坏蓄电池极板，同时也减少了电源的能耗。     

Parker恒压变量柱塞泵的国产化改进

通过分析Parker恒压变量柱塞泵的参数和运行环境，将Parker恒压变量柱塞泵的参数和运行环境和国产泵进行一一对比，证明了Parker恒压变量柱塞泵完全可以进行国产化改进。     

变频器在焦家金矿选矿厂恒压供水系统中的应用

介绍了焦家金矿选矿厂恒压供水控制系统的控制方案,并以两台水泵的恒压供水控制系统为例,叙述了系统的组成及其运行方式,并分析总结了恒压供水控制系统特点和应用效果。     

中小型热电厂恒压供水系统变频技术改造

变频器在节能方面的卓越贡献已被广泛推广应用,其在恒压稳压供给水系统中也有广泛的应用前景,传统的恒压供水方式逐步被变频恒压供水方式替代,变频器在小型热电厂恒压供水系统中应用有许多优越效果。     

恒压自动控制技术在闪速炉重油系统中的应用

阐述了金川有色金属公司闪速炉重油系统应用恒压自动控制技术的情况，着重介绍恒压自动技术的应用原理和适用结果。     

干混砂浆储料罐的恒压供水装置

介绍恒压供水装置，特别是干混砂浆储料罐的恒压供水装置。     

恒压变频供水设备在选矿厂供水系统中的应用

随着近几年来国家对排放超标、污染严重和设备工艺不符合标准的小型矿厂进行了集中的叫停整顿,对大型的矿厂设备进行集中的排查改进。对选矿厂供水系统中应用最新的恒压变频供水设备,由于恒压变频供水系统具有减少机器的磨损、方便操作极易上手、投入资金小等优点,已经取代了从前的水塔、气压罐和高水位箱搭配的恒压供水模式,经过大量实践数据表明新型的恒压变频供水设备与以往的恒压供水模式相比可以节省30%-60%的能源。本文就该系统的实际应用进行简单的阐述。     

纳米钛酸锂电池被首次成功研发

近期安徽天康新能源有限公司研发的具有自主知识产权的国内首个纳米钛酸锂电池通过国家动力及储能电池检测中心的检测和省级科技成果鉴定。安徽天康与北京大学、北京科技大学、复旦大学的专家合作攻关,大胆采用钛酸锂为负极材料,以及增加压缩应变恒压阀等核心技术,历时4年研发出了安全、环保、长寿命的新一代纳米钛酸锂电池产品,无论在性能以及体积比上都大大超越了其他锂电池产品,避免了普通锂离子电池有高比能量、高比功率、高能量转换效率、长循环寿命等优点,但存在低温时难以放电和充电等问题。     

铝电解铸造冷却水循环节能分析

针对中铝青海分公司铝电解铸造冷却水采用直排方式存在的种种缺陷，引出了恒压循环供水方式，通过投资和经济方面的比较，证明了恒压循环供水的优越性。     

化学镀铜表面烷基膦酸自组装单分子膜的制备及表征

通过脉冲恒电位强化技术,在新生的化学镀铜样品表面上制备了烷基膦酸自组装单分子膜,测试了自组装单分子膜的电化学和谱学特性,以及润湿性变化规律。结果表明在1%烷基膦酸溶液,脉冲恒电位强化制备的自组装膜腐蚀电流较空白样品下降了98.4%,反应阻抗值相应增加,其自组装膜抑制了铜电极腐蚀反应的阳极过程,使得控制步骤由氧的扩散转变为界面电荷转移;FT-IR检测证实了样品表面成功组装了烷基膦酸单分子膜,脉冲恒电位强化处理的对应吸收峰相对较大;接触角测试间接印证了烷基膦酸已组装成膜,样品表面的润湿性由亲水性转为疏水性,脉冲恒电位强化处理后自组装单分子膜的接触角θ增加了39°,说明脉冲恒电位强化使组装膜更为致密。      

适度低品位炼铁探讨

分析萍钢安钢分公司高炉炼铁降低入炉品位对生铁产量、燃料消耗、炉况的影响以及不同含铁料配比下入炉品位、生铁成本、铁水含磷的变化,结合炼钢脱磷成本探讨了最优入炉品位,以实现满足铁前、钢后工序要求并达到尽可能降低钢材生产成本的目的。     

湘钢合理炉料结构研究

通过对湘钢炼铁入炉炉料进行还原性及熔滴性能试验，分析了不同炉料结构对高炉软熔带的影响；结合成本分析，指出了在当前条件下，湘钢炉料结构的合理搭配。     

鞍钢无料钟布料数学模型研制与应用

阐述了鞍钢无料钟布料模型的开发与应用,重点分析了模型对料流阀开口度、料面形状和矿／焦比分布应用的结果。选择料流阀开口度采用三种方法,一是理论计算方法;二是利用实际测量数据对理论模型进行修正后,采用体积流速计算方法;三是利用实际测量数据对理论模型进行修正后,采用重量流速计算方法。通过对比三种方法结果,认为采用体积流速计算方法最能够保证布料过程料层均匀,无料钟布料模型可以实现对各种布料制度、料面形状的计算。     

Sediment-Laden Flow in Open-Channels under Noncapacity and Capacity Conditions

To determine the suspended load component of sediment transport in open-channel flow, the vertical distribution of the concentration of suspended particles is of importance. It is usual to determine this distribution by solving the diffusion-convection equation under appropriate boundary conditions. The exponent in the resulting equation is the Rouse number, defined as z′ = vss/βu*. The -value has been the subject of much research. In natural alluvial channels the sediment-laden flow is usually in capacity (saturation) condition, implying that the flow will charge (saturate) itself with particles available in the bed load and∕or on the bed itself. However, simulation of sediment-laden flow in a laboratory flume is achieved typically by externally adding particles to the flow. Consequently, it is not certain that the flow was in capacity condition. The resulting -values are often values for noncapacity conditions. They should not be used for natural alluvial channels, because they are misleading. Reported herein are experiments performed in the laboratory under noncapacity, as well as under capacity, conditions. This study focuses on the experimental determination of the -value, which incorporates the ratio of the sediment flux and the momentum flux , as well as the velocity and concentration profiles, ?ū∕?y and ?/?y, respectively. For experiments with small particles, d50 = 0.135 mm, the -values at capacity condition are smaller than unity; at noncapacity condition, the -values are usually larger than the ones at capacity condition, but all are still smaller than unity.     

高碱度烧结矿成矿过程的试验研究

通过对试验室烧结料柱进行解剖，分别研究了以磁铁精矿和赤铁粉矿为原料的两种高碱度烧结矿的成矿过程，初步查明了各烧结带的主要反应和作用，研究表明，高温冷却带对烧结矿的成矿起着十分重要的作用。     

Overexpression of deltaEmBP, a truncated dominant negative version of the wheat G-box binding protein EmBP-1, alters vegetative development in transgenic tobacco

A flat-panel x-ray imaging detector is being investigated for digital radiography and fluoroscopy. The detector uses a layer of amorphous selenium (a-Se) to convert x rays to a charge image, which is then electronically read out with a two-dimensional array of thin film transistors (TFTs). In order to sensitize the a-Se layer to x rays, a high voltage (of the order of several thousand volts) is applied to its top surface. The TFTs, which are at the bottom surface of the a-Se layer, are not subjected to any high voltage under normal radiological operational conditions since the pixel potential is < 10 V. However under a fault condition where these two events occur simultaneously: (1) suspended detector scan; and (2) an x-ray exposure more than ten times higher than normal, the voltage on the TFTs could rise to a damaging value. This paper describes a method for protecting the TFTs from high voltage damage under this fault condition. It employs a dual-gate TFT structure, one gate is for scanning control and the other is connected to the pixel electrode for high voltage protection. Before the pixel potential reaches a damaging value, the protection gate turns on the TFT automatically and drains excess charge away from the pixel thus providing a safe pixel saturation potential. In this paper, the characteristic curves of dual-gate TFTs are studied both theoretically and experimentally. The pixel x-ray response for imaging detectors with high voltage protection are predicted, and it is shown that with practical TFT designs the detector can provide a safe pixel saturation potential as well as satisfy the dynamic range required for diagnostic x-ray imaging applications.     

鼓风条件及块矿比例对炉料软熔性能的影响

为了研究不同鼓风条件下块矿比例对高炉含铁炉料软熔性能的影响,计算模拟了3种鼓风条件下的温度和气体含量并使用高温熔滴炉研究了块矿比例对含铁炉料软熔性能的影响,进而进行综合炉料结构优化的分析。结果表明,富氧、加湿鼓风条件下,氢气含量增加,能有效降低炉内最大压差,窄化熔融区间,改善炉内透气性;富氧、加湿鼓风条件下,块矿比例的增加虽然会导致炉内最大压差和软熔区间的增大,但是最大压差的绝对值仍远小于基准条件下的最大压差值,软熔带宽度也小于基准条件下的宽度。可以得知,在富氧和加湿鼓风条件下适当增加块矿比例,综合炉料软熔性能仍然优于基准条件,且能降低高炉生产成本,对于炉料结构是一种有效的优化措施。     

电炉冶炼不锈钢1Cr12Mo脱磷工艺的试验

工业生产条件下研究了含Ｎａ２ＣＯ３渣对电炉返回吹氧法冶炼不锈钢１Ｃｒ１２Ｍｏ脱磷的影响。结果表明：试验工艺在Ｎａ２ＣＯ３加入量为每吨钢１５ｋｇ的条件下,与常规工艺相比较,成品钢中磷含量平均降低０．００５％以上,取得明显的脱磷效果;同时金属炉料中磷含量控制范围放宽在０．００３％以下,方便了配料,降低了炼钢成本。     

攀成钢炼铁厂烧结系统配加钒钛矿生产实践

介绍了钒钛矿特殊的物理化学性能,以及针对钒钛矿特殊的物理化学性能而采取的一些有别于普通铁矿石烧结的操作方法.在攀成钢105 m2烧结机工艺装备条件下,分别对钒钛精矿配比为10%、15%、20%、25%时的生产操作进行了分析总结,结果表明,配加10%以内的钒钛矿对烧结过程无明显影响,但随着钒钛精矿配比的增加,烧结混合料制粒困难,透气性变差、风箱负压上升、在料层厚度不变的情况烧结机速明显下降,且烧结矿强度、成品率下降,返矿明显增多.最后对克服钒钛矿烧结的缺点,操作上的困难以及如何提高钒钛烧结矿的质量进行了一些探索和实践.