“三固”功血系列方治疗功能失调性子宫出血220例临床疗效观察

目的探讨功能失调性子宫出血(功血)的中医治疗方法.方法1985年1月1日至2004年12月31日在张掖医学高等专科学校门诊部就诊的,经相关检查诊断为功血的患者450例作为研究对象,随机分成2组,分别进行中医治疗和西医对照.结果中药治疗组也可以调整性激素的水平,改善凝血功能,总疗程(6±0.8)天,治疗总有效率达91.8%,对青春期女性有恢复月经和排卵作用.结论"三固"功血系列方治疗功血疗效满意.

构建“三固”环保体系 推进企业绿色发展

"十二五"以来,辽河石化构建了以"建设绿色环保文化固理念,创新‘三严’管理模式固基础,实施绿色环保工程固发展"为主要内容的"三固"环保体系,三严即"严控风险作业,严控生产波动,严肃岗位责任制执行"。公司不断依靠技术和管理创新,对节能减排、降本增效、低碳环保等生产经营环节进行全面管控,针对生态文明建设、绿色永续发展、HSE体系建设、创新驱动发展等方面存在的薄弱环节,通过绿色文化引领、"三严"管理、实施环保工程,持续推进企业绿色发展,打造了"一方净土、一池清水、一片蓝天",实现了企业效益提升与绿色环保的互惠双赢,用实际行动践行了国有企业的政治、经济和社会责任。

三黄固本汤加减治疗系统性红斑狼疮临床效果及对Th17/Treg的调节作用研究

目的观察三黄固本汤加减治疗系统性红斑狼疮的临床效果及对Th17/Treg的调节作用研究。方法选择2017年3月—2020年3月医院收治的系统性红斑狼疮患者140例,按照随机抽签法分为中医组和对照组,每组70例。对照组采用醋酸泼尼松和硫酸羟氯喹片治疗,中医组在对照组治疗的基础上,口服三黄固本汤治疗。两组均持续治疗12周。比较两组治疗前后中医证候积分和治疗疗效,比较两组治疗前后SLEDAI评分,比较治疗前后Th17和Treg占CD_(4)^(+)T细胞比例,比较不良反应发生情况。结果中医组治疗总有效率高于对照组(P<0.05);中医组治疗后面部红斑、发热、脱发、关节疼痛和气短乏力等中医证候积分低于对照组(P<0.05);中医组治疗后SLEDAI评分低于对照组(P<0.05);中医组和对照组治疗后Th17占CD_(4)^(+)T细胞比例降低,中医组下降幅度大于对照组。Treg占CD_(4)^(+)T细胞比例升高,中医组上升幅度大于对照组(P<0.05);中医组治疗后不良反应发生率低于对照组(P>0.05)。结论三黄固本汤加减结合西医常规治疗系统性红斑狼疮疗效显著,可最大限度的改善患者肾阴亏虚证的中医证候积分,降低系统性红斑狼疮的活动性,调控Th17和Treg细胞比例,减少因激素治疗带来的不良反应,具有一定临床价值。

三阴固本方联合呼吸功能训练治疗慢性阻塞性肺疾病稳定期随机平行对照研究

[目的]观察三阴固本方联合呼吸功能训练治疗慢性阻塞性肺疾病稳定期疗效。[方法]使用随机平行对照方法,将90例住院患者按就诊顺序号随机分三组。强力安喘通组(A)30例,强力安喘通,2粒/次,3次/d。三阴固本方+强力安喘通组(B):三阴固本方(蛤蚧1对[去眼珠],虫草花20g,紫石英、紫皮胡桃各30g,沉香、^(川)贝母各15g,五味子、山茱萸、枸杞子、白术、巴戟、熟地、甜杏仁、茯苓、白果仁^(炒)、半夏各25g,红参25g,黄芪炙、桑白皮、山药各50g,甘草20g。如畏寒肢冷,阳虚甚者,加肉桂20g,补骨脂25g,附片^(熟)15g)共研末,炼蜜为丸,3次/d,每次服含生药8~10g丸药1丸,强力安喘通胶囊治疗同对照组。三阴固本方+呼吸功能训练组(C):呼吸功能训练方法(缩唇呼吸+腹式呼吸+呼吸操练习)呼吸功能训练时间:每周一、周四上午由呼吸康复治疗师指导训练,其余时间自行训练;三阴固本方治疗同B组。连续治疗12周为1疗程。观测临床症状、6min步行试验(6MWT)、改良呼吸困难指数(m MRC)、体质量指数(BMI)、1秒用力呼气容积(FEV)_1)、用力肺活量(FVC)、日常生活活动能力评分(ADL)Barthel指数、不良反应。治疗1疗程(12周),判定疗效。[结果]改良呼吸困难指数(m MRC)、1秒用力呼气容积预计值(FEV_1pre)、日常生活活动能力评分(ADL)Barthel指数C组与A组差异显著(P<0.05),其他各项观察指标组间无显著差异(P>0.05)。1秒用力呼气容积(FEV_1)、FEV1%pre(预计值)、FEV_1/FVC(用力肺活量)C组均明显改善(P<0.05),其余两组无明显变化(P>0.05)。急性加重次数三阴固本方+呼吸功能训练组(C)明显少于强力安喘通组(A)(P<0.05),三阴固本方+强力安喘通组(B)与强力安喘通组(A)及三阴固本方+呼吸功能训练组(C)均无显著差异(P>0.05),[结论]三阴固本方联合呼吸功能训练治疗慢性阻塞性肺疾病稳定期,疗效满意,无严重不良反应,值得推广。

Study on ternary polymerization of toluene diisocyanate

For the production of reactive polyurethane cross-linkinger and curing agents, 2, 4-diisocyanate toluene （TDI） terpolymer, which possesses the rigid structures of hexatomic ring and three reactive functional groups, was synthesized and characterized by the Fourier transform infrared （FFIR）, the gel permeation chromatography （GPC） and the chemical analysis methods. The reaction conditions were studied and optimized. A tracking research on the polymerization process of TDI was taken by using the GPC. The formation processes of the terpolymer, oligomers and higher-polymers were also dealt with. Results show that the TDI terpolymer can be prepared in the presence of Cat-3 catalyst and at the reaction temperature of （60 ±2）℃. The reaction time is short, its outcomes have narrow molecular weights distribution, namely molecular weights from 530 to 550, Mw/Mn =1.10, and the mass fraction of NCO is （25. 0 ± 0. 5）%. With the reaction time prolonging, however, TDI can be further higher-polymedzed to form higher-polymers. Benzoyl chloride （0. 4%, mass fraction）, as the stabilizing agent, can effectively inhibit the occurrence of higher-polymerization. The obtained TDI terpolymer can be stable for more than half a year.

Stable response of axisymmetric two-phase water-saturated soil

Biot's dynamic consolidation equations and Hankel transform were used to derive the integral solutions of stress and displacement for axisymmetric harmonic excitations in the two-phase saturated soil with subjacent rock-stratum. The influence of the coefficient of permeability and loading frequency on the soil displacement at the ground surface were studied. The results showed that higher loading frequency led to more dynamic characteristics; and that the effect of the soil permeability was more obvious at higher frequencies.

Isothermal section of Al-Ti-Zr ternary system at 1073 K

Through alloy sampling combined with diffusion triple technique, phase equilibria in Al-Ti-Zr ternary system at 1073 Kwere experimentally determined with electron probe microanalysis （EPMA）. Experimental results show that there is a solid solutionβ（Ti,Zr） which dissolves Al up to 16.3% （mole fraction）. Ti and Zr can substitute each other in most Ti-Al and Al-Zr binaryintermediate phases to a certain degree while the maximum solubility of Zr in Ti3Al and TiAl reaches up to 17.9% and 4.0% （molefraction）, respectively. The isothermal section consists of 16 single-phased regions, 27 two-phased regions and 14 three-phasedregions. No ternary phase was detected.

"Environmental phosphorylation"boosting photocatalytic CO_(2)reduction over polymeric carbon nitride grown on carbon paper at air-liquid-solid joint interfaces

The limited CO_(2)content in aqueous solution and low adsorption amount of CO_(2)on catalyst surface lead to poor photocatalytic CO_(2)reduction activity and selectivity.Herein,the design and fabrication of a novel photocatalytic architecture is reported,accomplished via chemical vapor deposition of polymeric carbon nitride on carbon paper.The as-obtained samples with a hydrophobic surface exhibit excellent CO_(2)transport and adsorption ability,as well as the building of triphase air-liquid-solid(CO_(2)-H_(2)O-catalyst)joint interfaces,eventually resulting in the inhibition of H2 evolution and great promotion of CO_(2)reduction with a selectivity of 78.6%.The addition of phosphate to reaction environment makes further improvement of CO_(2)photoreduction into carbon fuels with a selectivity of 93.8%and an apparent quantum yield of 0.4%.This work provides new insight for constructing efficient photocatalytic architecture of CO_(2)photoreduction in aqueous solution and demonstrates that phosphate could play a key role in this process.

Some stationary weak solutions to inhomogeneous Landau-Lifshitz equations in three dimensions

In this paper, we describe several stationary conditions on weak solutions to the inhomogeneous Landau-Lifshitz equation, which ensure the partial regularity. For certain class of proper stationary weak solutions, a compactness result of the solutions, a finite Hausdorff measure result of the t-slice energy concentration sets and an asymptotic limit result of the Radon measures are proved. We also present a subtle rectifiability result for the energy concentration set of certain sequence of strong stationary weak solutions.

Solid-Liquid Equilibria of trans-1,2-Cyclohexanediol＋Butyl Acetate＋ Water Ternary System

Using a laser observation technique,the solubilities of trans-1,2-cyclohexanediol in butyl acetate+wa- ter were measured at the temperature range from 298.15K to 323.15K by a synthetic method at atmospheric pres- sure.It is shown that the solubilities of trans-1,2-cyclohexanediol in butyl acetate+water were affected greatly by the proportion of butyl acetate and water,and presented maximum value at given temperature.The UNIFAC model was used to correlate the experimental data.The average relative deviation(ARD)between experimental and calculated values is 3.03%.

Local Gas Phase Flow Characteristics of a Gas-Liquid-Solid Three-Phase Reversed Flow Jet Loop Reactor

The local gas-phase flow characteristics such as local gas holdup(εg), local bubble velocity (V_b) and local bubble mean diameter(d_b) at a specified point in a gas-liquid-solid three-phase reversedflow jet loop reactor was experimentally investigated by a five-pointconductivity probe. The effects of gas jet flow rate, liquid jet flowrate, solid loading, nozzle diameter and axial position on the localεg, V_b and d_b profiles were discussed. The presence of solids atlow solid concentrations not only increased the local εg and V_b,but also decreased the local d_b. The optimum solid loading for themaximum local εg and V_b together with the minimum local d_b was0.16×10^-3 m^3, corresponding to a solid volume fraction ε_S＝2.5/100.

Phase equilibria of Al-Fe-Sn ternary system

The isothermal sections of Al-Fe-Sn ternary system at 973 and 593 K were determined experimentally by the equilibriated alloy method using scanning electron microscopy coupled with energy-dispersive spectrometry and X-ray diffractometry. Experimental results show that no ternary compound is found on these two sections. The maximum solubility of Fe in the liquid phase is 1.6%（mole fraction） at 973 K and those of Fe and Al in the liquid phase are 0.6% and 5.1%（mole fraction） at 593 K, respectively. The maximum solubility of Sn in the Fe-Al compounds is 4.2%（mole fraction） at 973 K and 2.3%（mole fraction） at 593 K. All the Fe-Al compounds can be in equilibrium with the liquid phase.

Three-dimensional consolidation deformation analysis of porous layered soft soils considering asymmetric effects

Long-term settlements for underground structures, such as tunnels and pipelines, are generally observed after the completion of construction in soft clay. The soil consolidation characteristic has great influences on the long-term deformation for underground structures. A three-dimensional consolidation analysis method under the asymmetric loads is developed for porous layered soil based on Biot's classical theory. Time-displacement effects can be fully considered in this work and the analytical solutions are obtained by the state space approach in the Cartesian coordinate. The Laplace and double Fourier integral transform are applied to the state variables in order to reduce the partial differential equations into algebraic differential equations and easily obtain the state space solution. Starting from the governing equations of saturated porous soil, the basic relationship of state space variables is established between the ground surface and the arbitrary depth in the integral transform domain. Based on the continuity conditions and boundary conditions of the multi-layered pore soil model, the multi-layered pore half-space solutions are obtained by means of the transfer matrix method and the inverse integral transforms. The accuracy of proposed method is demonstrated with existing classical solutions. The results indicate that the porous homogenous soils as well as the porous non-homogenous layered soils can be considered in this proposed method. When the consolidation time factor is 0.01, the value of immediate consolidation settlement coefficient calculated by the weighted homogenous solution is 27.4% bigger than the one calculated by the non-homogeneity solution. When the consolidation time factor is 0.05, the value of excess pore water pressure for the weighted homogenous solution is 27.2% bigger than the one for the non-homogeneity solution. It is shown that the material non-homogeneity has a great influence on the long-term settlements and the dissipation process of excess pore water pressure.

Effect of Gd_(0.2)Ce_(0.8)O_(1.9) nanoparticles on the oxygen evolution reaction of La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3-δ) anode in solid oxide electrolysis cell

La（0.6）Sr（0.4）Co（0.2）Fe（0.8）O（3-δ）（LSCF） anodes were infiltrated by Gd（0.2）Ce（0.8）O（1.9）GDC） nanoparticles to improve the oxygen evolution reaction（OER） performance of solid oxide electrolysis cells（SOECs） in CO2 electroreduction. The effect of GDC loading was investigated, and 10 wt% GDC nanoparticle infiltration of the LSCF（10 GDC/LSCF） anode results in the highest OER performance. Electrochemical impedance spectra measurements indicate that the infiltration by GDC nanoparticles greatly decreases the polarization resistance of the SOECs with the 10 GDC/LSCF anodes. The following distribution of relaxation time analysis suggests that four individual electrode processes are involved in the OER and that all of them are accelerated on the 10 GDC/LSCF anode. Three phase boundaries, surface oxygen vacancies, and bulk oxygen mobility increased, based on scanning electron microscopy and temperature-programmed desorption of O2 characterizations, and contributed to the enhancement of the four electrode processes of the OER and electrochemical performance of SOECs.

Characteristics and Causes of the Preconsolidation Stress of Soils in the Yellow River Delta

Preconsolidation stress （ σP） is the maximum effective stress that a soil has suffered throughout its life. From a geotech- nical point of view, pre-consolidation stress has great importance because it separates elastic and reversible deformations from inelastic and only partially irreversible deformations and marks the starting point of high compressibility. In this study we calculated the preconsolidation stress for 72 undisturbed soil samples from the Yellow River Delta, using the oedometer test and applying the method proposed by Casagrande. The results showed that the over-consolidation ratio （OCR-the ratio of pre-consolidation stress to current natural overburden stress） values of the soil from soil surface to 6m depth varied from 1.72 to 15.34 and the maximum pre- consolidation stress was above 200 kPa. In consequence, the soils of the Yellow River Delta are highly over-consolidated within the upper 6m, the OCR decreasing gradually with depth from 6 to 12m. For samples from deeper than 12m the soils were found to be under-consolidated, which was proved by standard penetration tests （SPTs）. The main causes of this type of consolidation are the mineral composition and the designability of the soil body.

Three-dimensional Simulation of Gas/Solid Flow in Spout-fluid Beds with Kinetic Theory of Granular Flow

A three-dimensional Eulerian multiphase model, with closure law according to the kinetic theory of granular flow, was used to study the gas/solid flow behaviors in spout-fluid beds. The influences of the coefficient of restitution due to non-ideal particle collisions on the simulated results were tested. It is demonstrated that the simulated result is strongly affected by the coefficient of restitution. Comparison of simulations with experiments in a small spout-fluid bed showed that an appropriate coefficient of restitution of 0.93 was necessary to simulate the flow characteristics in an underdesigned large size of spout-fluid bed coal gasifier with diameter of lm and height of 6m. The internal jet and gas/solid flow patterns at different operating conditions were obtained. The simulations show that an optimal gas/solid flow pattern for coal gasification is found when the spouting gas flow rate is equal to the fluidizing gas flow rate and the total of them is two and a half times the minimum fluidizing gas flow rate. Besides, the radial distributions of particle velocity and gas velocity show similar tendencies; the radial distributions of particle phase pressure due to particle collisions and the particle pseudo-temperature corresponding to the macroscopic kinetic energy of the random particle motion also show similar tendencies. These indicate that both gas drag force and particle collisions dominate the movement of particles.

Phase equilibria of Co-Mo-Zn ternary system

To experimentally determine the isothermal sections of Co-Mo-Zn ternary system at 600 and 450℃,the equilibrated alloy and diffusion couple methods were adopted by using scanning electron microscopy coupled with energy-dispersive spectrometry,X-ray diffractometry and electron probe microanalysis.Experimental results show that there are six three-phase regions on the Co-Mo-Zn isothermal section at 600℃and nine three-phase regions on the Co-Mo-Zn isothermal section at 450℃.No ternary compound is found in these two isothermal sections.Both the maximum solubilities of Mo in the Co-Zn compounds(γ-Co5 Zn21,γ1-Co Zn7,γ2-Co Zn13 andβ1-Co Zn)and that of Zn inε-Co3 Mo are no more than 1.5 at.%.The maximum solubilities of Zn inμ-Co7 Mo6 are determined to be 2.1 at.%and 2.7 at.%at 600 and 450℃,respectively.In addition,the maximum solubilities of Co in MoZn7 and MoZn22 are 0.5 at.%and 4.7 at.%at 450℃,respectively.

Flooding Characteristics of Hydrofoil Impeller in a Two- and Three-phase Stirred Tank

The flooding characteristics of hydrofoil impeller were systematically investigated in a two-and three-phase 383 mm i.d. stirred tank operated on air, water and spherical glass beads. The volumetric solid concen-tration Cs was varied from 0 to 25%. And the superficial gas velocity Ug was at the range of 0-0.096 m·s-1. A fast and objective method for identifying flooding point NF is developed based on the statistical analysis of the pressure fluctuation signals. It is found, the effect of solid concentration on the flooding point NF depends on the gas velocity. At the lower gas velocity (Ug = 0.010 m·s-1), the solid concentration has only a minor effect. However, it displays a very significant effect on the flooding point NF at the medium and high gas velocity. The flooding point NF linearly increases with the gas velocity Ug, at lower solid concentration (Cs = 0, 10%). When Cs = 20%, the behavior of NF versus Ug becomes more complex. The correlations of the flooding characteristics in the slurry stirred tank are proposed by considering the solid concentration effect.

Lipid disorders and lipid peroxidation associated with the malignant transformation of colorectal adenoma

Objective:The aim of this study was to investigate lipid disorders and lipid peroxidation associated with the malignant transformation of colorectal adenoma.Methods:Analyses were based on data from 100 subjects with histologically confirmed adenomas(cases) and 50 adenoma-free control subjects,all of whom had colonoscopy.The subjects were divided into two groups:those with no adenoma and those with adenoma.According to subsite of adenomas the subjects with adenoma were divided into group of distal adenoma and group of proximal adenoma.According to histology of adenomas the subjects with adenoma were divided into group of villiform adenoma and group of tubular + tubulo-villous adenoma.Among the groups,the serum levels of triglyceride(TG),total cholesterol(TC),high density lipoprotein cholesterol(HDL-C),lowdensity lipoprotein cholesterol(LDL-C),and lipid peroxidation product malondialdehyde(MDA) were compared in all the patients.Results:Plasma total cholesterol and MDA level in group of adenomas were significantly higher than that in group of control subjects,but plasma HDL-C level was low in group of adenomas(P<0.05).Plasma total cholesterol and MDA levels were positively related to distal and villiform adenomas(P<0.05).Conclusion:The findings suggest that altered lipid metabolism may be differentially associated with colorectal adenomas.

Collins Model and Phase Diagram of 2D Ternary System

The Collins model is introduced into the two-dimensional (2D) alternative ternary system having the Lennard-Jones (L-J) potential. The Gibbs free energy of this ternary system is calculated, and according to thermodynamic theory, a group of equations that determine the solid-liquid diagram of ternary system are derived, someisothermal sectional diagrams of the 2D ternary system are obtained. The results are quite similar to the behavior ofthree-dimensional substances.