韶关冶炼厂低浓度烟气两转两吸制酸工艺的设计及生产实践

介绍了铅锌烧结机低浓度二氧化硫烟气两转两吸制酸工艺 ,该工艺采用了大型耐火砖球形拱转化器 ,ⅣⅠ—ⅢⅡ、“3+1”2次转化流程 ,干吸工序采用高温吸收工艺。

干吸塔分酸装置的改造实践

介绍了韶关冶炼厂制酸系统干吸塔分酸装置的改造实践。改造时将分酸装置由分酸槽挂爪式改为管式分酸器,有效地延长了干吸塔的寿命。

冶炼烟气制酸净化改造

介绍了韶冶一硫酸净化工序技术改造和运行情况.改造采用了三塔(空塔、动力波、填料塔)、两电和冷凝器间接冷却烟气移热流程.改造后生产工艺稳定,净化效率大大提高.

韶关冶炼厂二期硫酸装置及试生产情况

介绍韶关冶炼厂二期硫酸装置的工艺流程、主要设备及试生产情况。具体分析了生产中出现的问题及改进办法，对一些尚未改进的问题提出了自己的建议。

吉比特时域并行调制解调算法研究及实现

为了提高调制解调器数据处理速度,实现高速数据传输,针对Gbit级无线通信中并行调制解调算法展开研究,提出并行Gardner时钟恢复算法、并行载波恢复算法及并行信道估计与均衡算法,并利用matlab软件对AWGN信道下系统性能进行仿真验证。仿真结果表明,所提出的并行调制解调算法,可有效提高系统的数据处理速度,且系统具有较优的差错性能。

PARAMETER ESTIMATION FOR A CLASS OF STOCHASTIC DIFFERENTIAL EQUATIONS DRIVEN BY SMALL STABLE NOISES FROM DISCRETE OBSERVATIONS

We study the least squares estimation of drift parameters for a class of stochastic differential equations driven by small a-stable noises, observed at n regularly spaced time points ti = i/n, i = 1,...,n on [0, 1]. Under some regularity conditions, we obtain the consistency and the rate of convergence of the least squares estimator （LSE） when a small dispersion parameter ε→0 and n →∞ simultaneously. The asymptotic distribution of the LSE in our setting is shown to be stable, which is completely different from the classical cases where asymptotic distributions are normal.

98例慢性硬膜下血肿治疗方法分析

目的:探讨慢性硬膜下血肿的最佳手术治疗方法。方法:通过本院98例慢性硬膜下血肿,根据患者入院年龄、一般情况、血肿密度、并发症,分别采取不同手术方式治疗。结果:几种手术方式的预后无明显差异,但在手术损伤、并发症等方面有明显不同。结论:根据患者的年龄、一般情况、血肿大小、有无再出血、血肿密度、有无合并心肺疾患等,选择性使用不同的手术方法,更有利于患者的治疗和康复。

重型颅脑损伤并脑疝的诊治体会

目的：探讨颅脑外伤后脑疝形成的临床特点及诊断治疗方法。方法：回顾性分析64例颅脑外伤后脑疝患者的临床资料。结果：手术56例，死亡23例，植物生存4例，非手术治疗8例，死亡8例。本组死亡率48．3％。结论：颅脑外伤后脑疝形成强调早期诊断早期治疗，颅脑外伤后脑疝的预后与患者的脑损伤程度，血肿形成速度，血肿大小，年龄，合并伤，并发症等有关，尤其与脑疝形成的时间长短对死亡率有直接关系。

ANTICIPATING QUADRANT AND SYMMETRIC INTEGRALS IN THE PLANE WITH APPLICATION TO WIENER SPACE

We introduce anticipating quadrant and symmetric integrals in the plane, and establish the associated chain rules which are the same as the deterministic ones. In particular, we deduce the relation between quadrant integrals, symmetric integral, and Skorohod integral with respect to two-parameter Wiener processes.

ON THE RATES OF CONVERGENCE IN THE CENTRAL LIMIT THEOREM FOR TWO－PARAMETER MARTINGALE DIFFERENCES

In this paper we obtain the uniform bounds on the rate of convergence in the central limit theorem (CLT) for a class of two-parameter martingale difference sequences under certain conditions.

ON THE SINGULARITY OF LEAST SQUARES ESTIMATOR FOR MEAN-REVERTING α-STABLE MOTIONS

We study the problem of parameter estimation for mean-reverting α-stable motion, dXt = （a0 - θ0Xt）dt ＋ dZt, observed at discrete time instants. A least squares estimator is obtained and its asymptotics is discussed in the singular case （a0, θ0） = （0, 0）. If a0 = 0, then the mean-reverting α-stable motion becomes Ornstein-Uhlenbeck process and is studied in [7] in the ergodic case θ0 〉 0. For the Ornstein-Uhlenbeck process, asymptotics of the least squares estimators for the singular case （θ0 = 0） and for ergodic case （θ0 〉 0） are completely different.

THE APPROXIMATION THEOREM OF STOCHASTIC DIFFERENTIAL EQUATIONS IN THE PLANE

In this paper, we consider the approximation problem of stochastic differential equation with respect to two-parameter Wiener processes and deal with the relation between the solution of stochastic differential equation dX(x) = sigma(X(x)dB(x) + 1/4 sigmasigma' (X(z))dz and the solution of ordinary differential equation dX(n)(z) = sigma(X(n)(z))dB(z)n, where B(z)n is a special sequence of approximation to B(x).

枕骨部分切除减压术联合人工硬脑膜扩大修补术治疗42例Chiari Ⅰ型畸形患者的疗效分析

目的探讨枕骨部分切除减压术联合人工硬脑膜扩大修补术治疗Chiari Ⅰ型畸形的临床效果。方法选取铜仁市某医院2012年1月-2016年1月行手术治疗的42例Chiari Ⅰ型畸形患者为研究对象。所有患者均行枕骨部分切除减压术联合人工硬脑膜扩大修补术治疗。观察患者术后并发症发生情况、手术治疗效果和术后3个月患者脊髓空洞改善情况。结果术后患者切口感染、一过性头痛、脑脊液漏或皮下积液、枕部麻木、颈部活动受限等并发症发生率分别为2.38%,42.86%,14.29%,7.14%,4.76%,术后无死亡病例。患者Tator评分分级优良率为97.62%。术前合并脊髓空洞的28例患者经过手术治疗后,有25例患者脊髓空洞闭合或缩小。结论枕骨部分切除减压术联合人工硬脑膜扩大修补术因未切除正常脑组织,避免了对正常组织的破坏,降低了术后并发症发生率,提高了手术的安全性及治疗效果,值得临床推广应用。

改良标准去大骨瓣减压治疗幕上脑出血的体会

高血压脑出血（HICH）是一种高发病率,高致残率及高死亡率率的临床上最常见的急重症。国内治疗HICH的方法很多,2006年以来,采用外科手术治疗（改良标准去大骨瓣减压血肿清术）患者139例,对患者预后生存率及生存质量的疗效分析,现报告如下。

SYMMETRIC INTEGRAL AND THE APPROXIMATION THEOREM OF STOCHASTIC INTEGRAL IN THE PLANE

In this paper, we consider the approximation problem of stochastic integral with respect to two-parameter Wiener process. We first introduce a kind of symmetric integral and prove it obeys the chain rule. Then we apply an integral formula of bounded variation functions with two variables to show the approximation theorem of stochastic integral in the plane. In particular, we prove that the symmetric stochastic integral is stable when the limit is taken in the sense of L~2convergence.

Raptor码在卫星广播通信中的应用及其分析

重复编码技术是目前中国广播通信中应用较为广泛的信道编码码型,但其存在频谱效率过低的问题;文章提出采用新发明的Raptor码代替重复编码技术作为卫星广播通信的信道编码码型。研究表明:和重复编码技术相比,不同参数条件下的Raptor码都取得了2-4倍的频谱增益,并且其纠错性能和实现复杂度保持不变,因此采用Raptor码能够提高广播信道的信息分发速率。

一类双参数带跳非马氏型随机微分方程解的轨道唯一性

设(Ω,(?),Ρ)为一个概率空间,((?))_(Zz∈R_t^2)为满足通常条件的6-代数族(参见文献[1]).Yeh在文献[2]中考虑了双参数非马氏型随机微分方程(SDE):

颅脑损伤并脑疝64例分析

目的探讨颅脑外伤后脑疝形成的临床特点及诊断治疗方法。方法回顾性分析64例颅脑外伤后脑疝患者的临床资料。结果手术56例,死亡23例,植物生存4例,非手术治疗8例,死亡8例。病死率48.3%。结论颅脑外伤后脑疝形成强调早期诊断早期治疗,颅脑外伤后脑疝的预后与患者的脑损伤程度,血肿形成速度,血肿大小,年龄,合并伤,并发症等有关,尤其与脑疝形成的时间长短对病死率有直接关系。

The Pathwise Uniqueness of Solution of Non-Markovian Stochastic Differential Equations With Jumps in Plane

Let (Ω,(?), P) be a complete probability space with a family of sub-σ-fields {(?)_z}_z∈R_+~2 which satisfies the usual conditions. Yeh considered the existence and uniqueness of strong solutions of the following non-Markovian stochastic differential equations (SDE)