矿山生态修复及模式选择

矿业是我国重要的经济行业之一,但是在开采矿山的过程中,较为容易产生对生态环境的破坏与污染问题,及时地进行修复矿山生态,才能保障社会生态与经济的协调发展,使人们赖以生存的健康家园和矿山资源都能得到保障。因此,相关的矿山开采部门需格外注重对于破坏生态问题的防治与管理,最大程度地保障矿山健康生态,促使矿山企业与社会健康发展。

固定正畸治疗中牙周组织损伤的监测与防治

本人对40名接受固定正畸治疗的患者，分为牙周治疗组与对照组。对矫治前、中、后期的牙周组织定期测量菌斑指数及牙龈指数，探讨固定正畸治疗中牙周组织损伤的防治问题。

HPLC-MS/MS测定3类污水处理厂污泥及污水中的8种药物

药物及个人护理品(pharmaceuticals and personal care products,PPCPs)是一类典型的新型痕量有机污染物,会对人类健康及生态系统带来风险.本文发展优化了以超声提取、固相萃取净化并结合高效液相色谱-串联质谱对污泥及污水中的8种药物,包括罗红霉素、美托洛尔、普萘洛尔、磺胺噻唑、磺胺甲恶唑、磺胺嘧啶、咖啡因、对乙酰氨基酚的分析检测方法.结果表明,在优化条件下,该方法对污泥回收率可达74.80%—127.96%,水样回收率除低浓度加标情况下对乙酰氨基酚回收率较低为39.45%外,其余物质回收率可达81.36%—120.18%,污水方法的检出限为0.020—5.155 ng·L^(-1),污泥方法检出限为0.004—1.031 ng·kg^(-1).应用所建立的方法,对天津市三个不同类型污水处理厂(医院、养猪场及城市污水处理厂)的脱水污泥及进出水进行检测分析.结果表明,污水中目标物浓度范围为(0.14—2157.03 ng·L^(-1)),污泥中目标物浓度范围为(0.12—9.84 ng·kg^(-1)).大多目标物在医院分布浓度较高,养猪场次之,城市污水厂相对较低.其中,美托洛尔、咖啡因、对乙酰氨基酚等3个物质的浓度较高,进出水浓度可达16.69—2157.03 ng·L^(-1),而其余5种物质浓度相对较低.

煤矿地质环境问题与治理恢复技术研究

针对煤矿过度开采造成地面塌陷和裂缝的延伸,破坏生态环境,分析煤矿地质环境问题,研究治理恢复技术,布设监测装置,矿区疏水排导,通过周期性覆盖回位模式,结合削坡卸载,实现环境治理恢复。实例分析表明:应用治理恢复技术后,三个区域的绿化比均达到90%以上,表明治理恢复效果好,该方法具有应用价值和现实意义。

59式坦克舱内伤员搬运应用研究

当今科技日新月异,各种反坦克武器不断问世,战时易造成大量坦克成员伤亡[1]。如何有效救护伤员,是装甲部队战伤救护的一个重要问题[2]。以下以59式坦克为例,救护方法着重研究坦克作战损毁后伤员搬运急救问题。坦克乘员战伤救护首先要解决寻找发现伤员问题,及时发现伤员,是迅速实施阵地救护的重要前提[3]。步兵卫生人员发现阵地伤员主要靠看、问、听、找4种方法,坦克伤员救护要充分利用电台联络等方式联络。

主战坦克内伤员依托安全门搬运器材设计

坦克作为一种全履带装甲战车,因其具有优良的越野机动性、坚固的装甲防护、强火力和强大的突击能力,在现代战争中发挥着十分重要的作用,被称为＂陆战之王＂。但随着科技快速进步,各种反坦克导弹、智能地雷、反装甲子母弹、末敏弹等反坦克武器和弹药层出不穷,在现代战争中易造成大量人员伤亡[1,2]。如何有效搬运救护坦克战伤乘员,显得尤为关键。在实战情况下,合理搬运对伤病员的治疗和预后非常重要[3]。因情况紧急,既需动作迅速,又要防止伤员再次损伤（特别是脊柱损伤、骨盆骨折伤员）[4]。

Luminescent properties of Eu^(3+)-doped BaZrO_3 phosphor for UV white light emitting diode

A novel orange phosphor Eu3+ doped barium zirconate(BaZrO3) was synthesized by conventional solid state reaction method and its crystal structure and luminescent properties were investigated in this paper.The X-ray diffraction patterns(XRD) showed that simple BaZrO3 phase was obtained.Monitoring at 596 nm,the excitation spectrum consisted of a broad band and a series of narrow bands and the stronger excitation peaks located at 275 and 393 nm,respectively.The emission spectrum excited by 393 nm UV light was composed of four narrow bands.The strongest emission was located at 596 nm.The appropriate concentration of Eu3+ was 0.025(molar fraction) for the highest emission intensity at 596 nm.The H3BO3 and ammonium were added as flux and the results showed that 2 wt.% NH4F ions was the optimal flux for BaZrO3:Eu3+.

Synthesis and optical properties of Dy^(3+), Li^+ doped CaMoO_4 phosphor

A series of CaMoO4 phosphors doped with trivalent dysprosium ions （Dy3＋） and lithium （Li＋） were prepared by solid state method at 750 °C for 3 h. X-ray diffraction （XRD） confirmed the crystal structure and quality of phosphors. Scanning electron microscopy （SEM） in- dicated that the phosphors presented good crystalline state, and the crystalline grain sizes were about 0.5–3.0 μm. The emission spectra showed that the phosphors had intense emission at 480 （4F9/2→6H15/2）, 576 （4F9/2→6H13/2） and 660 nm （4F9/2→6H11/2）. Meanwhile, the excited spectra indicated it had intense excitation at 352 （6H15/2→6P7/2）, 390 （6H15/2→4M21/2） and 450 nm （6H15/2→4I15/2）. As a charge compensator, Li＋ ions were incorporated into CaMoO4：Dy3＋ phosphors, which enhanced the PL intensities depending on the doping concentration of Li＋. The optimal molar fraction of Dy3＋ ions in Ca1-xMoO4：xDy3＋, 0.05Li＋ was 0.05.

Fabrication and luminescent properties of red phosphor M_3BO_6:Eu^(3+)(M=La,Y)

A series of red phosphors M3BO6:Eu3+(M=La,Y) were synthesized at 1150 oC by conventional solid state reaction method and their luminescent properties were investigated.Structural characterization of the luminescent materials was carried out with X-ray powder diffraction(XRD) analysis.Photoluminescence measurements indicated that the La3BO6:Eu3+ phosphor exhibited bright red emission centered at about 612 nm 626 nm under UV excited.La3BO6:Eu3+ phosphor had better luminescent intensity than Y3BO6:Eu3+ phosphors under the same excitation and measuring conditions.It was shown that the 0.08 mol.% Eu3+ ions in La3BO6:Eu3+ phosphors was optimal.The color parameter indicated that La3BO6:Eu3+ phosphor was a preferable red phosphor for white LED.

军人保障卡医疗转接软件使用中存在的问题及建议

根据上级要求,我们自2011年1月正式启用了医疗转接软件系统,其主要功能是军人保障卡医疗关系的调入与调出。经过1年的使用,现就软件医疗转接软件存在的问题及改进建议报告如下。