Clinical Research on Alleviating Pain for Patients with Ankylosing Spondylitis and Their Active Function by Acupuncture with Chinese Medicine Fuming and Steaming

OBJECTIVE: To investigate clinical effect of acupuncture combined with TCM fumigation on pain and active function improvement in patients with ankylosing spondylitis. METHODS: 42 patients with ankylosing spondylitis were selected in hospital from October 2016 to October 2017, who were randomly divided into 2 groups by number table method. 21 patients received conventional treatment as control group. 21 patients combined with acupuncture, TCM fumigation treatment as observation group. Clinical indicators, activity function, pain scores were evaluated before and after treatment. RESULTS: Erythrocyte sedimentation rate, C reactive protein, alkaline phosphatase, macrophage migration inhibitory factor, BASDAI score, BASFI score, VAS score after treatment decreased in two groups compared with before treatment(P<0.05). Chest mobility, lumbar pitch, Schober test, occipital wall distance, lumbar lateral flexion after treatment increased in two groups compared with before treatment(P<0.05). Refers to distance, morning stiffness time, rump length after treatment reduced in two groups compared with before treatment(P<0.05). Erythrocyte sedimentation rate, C reactive protein, alkaline phosphatase, macrophage migration inhibitory factor, BASDAI score, BASFI score, VAS score in observation group were lower than control group after treatment(P<0.05). Chest mobility, lumbar pitch, Schober test, occipital wall distance, lumbar lateral flexion in observation group were higher than control group after treatment(P<0.05). Refers to distance, rump length in observation group were smaller than control group after treatment(P<0.05). Morning stiffness time in observation group was less than control group after treatment(P<0.05). CONCLUSIONS: Acupuncture combined with TCM fumigation can significantly improve pain and active function in patients with ankylosing spondylitis, which is worthy of clinical promotion.

Effects of fuming tablet combined with operation on serum β2-mg, HbA1c, no and antioxidant capacity in patients with diabetic cataract

Objective: To observe the effect of oral fuming tablets on the levels of serum β2-microglobulin (β2-MG), Glycosylated hemoglobin (HbA1c), Nitric oxide (NO), Malondialdehyde (MDA) and superoxide dismutase (SOD) in patients with diabetic cataract (DC) after phacoemulsification combined with vitrectomy. Methods: A total of 90 patients with DC were randomly divided into control group (n=45) and observation group (n=45) according to the lottery method. Both groups were treated with conventional therapy. On this basis, the control group underwent phacoemulsification combined with vitrectomy. The observation group was treated with Fuming tablets on the basis of the control group. The levels of β2-MG, HbA1c, NO, MDA and SOD in peripheral blood were measured in all subjects. Result: Before treatment, there were no significant difference in serum levels of β2-MG, HbA1c, NO, MDA and SOD between the two groups. The levels of β2-MG, HbA1c, NO and MDA in the two groups after treatment were significantly lower than those before treatment. And the levels of β2-MG, HbA1c, NO and MDA of the observation group was notably lower than those of the control group. After treatment, the levels of SOD in the two groups were notably higher than those before treatment. And the levels of SOD of the observation group was notably higher than those of the control group after treatment. Conclusion: After phacoemulsification combined with vitrectomy, supplemented with Fuming tablet treatment can effectively reduce serum levels of β2-MG and HbA1c to improve the degree of fundus lesions in DC patients;reduce serum MDA and NO levels, increase the concentration of SOD, DC patients to restore the antioxidant energy. Fuming tablets are effective adjuvant drugs for clinical cataract surgery.

Optimization of the Superglue Fuming and Powder Technique for the Enhancement of Latent Fingerprints from Objects Submerged in Water: An Experimental Study in Ghana

Introduction: Criminals’ propensity to precautionary mask their tracks such as disposing of an item of evidence in an aquatic environment (including freshwater and seawater) warrants the ongoing quest for advanced reagents and techniques that are tailored to the substrate characteristics on which the print will be developed. Aim: The study aimed to evaluate the synergic efficiency of the superglue fuming technique (using a homemade fuming chamber) and the powder technique in the development and visualization of latent fingerprints (LFPs) from different nonporous substrates submerged in an aquatic environment for up to 120 days. Materials and Methods: All selected nonporous substrates were cleaned thoroughly with a 70% alcohol swab. Natural latent prints were obtained from a single donor and the substrates were exposed to an aquatic environment. The superglue fuming (using a homemade fuming chamber) plus the powder technique was employed to develop and visualize the print. Results: Our findings disclose that the use of the superglue fuming technique together with the powder technique enhances the recovery rate of LFPs from substrates kept underwater for up to 90 days. The development of fingerprints was challenging from the substrates that were submerged in water for exactly 120 days. Conclusions: The resulting efficiency of the combined technique (superglue fuming technique using a homemade fuming chamber + powder technique) is substantially more sensitive, and selective, and performs better than the previously used stand-alone fingerprint enhancement technique. The improvised homemade fuming chamber proves to be a viable alternative to the standardized fuming cabinet in terms of functionality and sensitivity.

Using coal fly ash-based geopolymer to immobilize Cd from lead fuming furnace slag

Lead fuming furnace slag(LFFS)is a by-product of lead metal production,which is a toxic solid waste according to toxicity characteristic leaching procedure(TCLP)test.It was investigated the feasibility of preparation of geopolymer using coal fly ash(CFA)and LFFS and the immobilization efficiency of Cd in geopolymer.The synthesized geopolymer samples were examined by compressive strength,Fourier transform transmission infrared spectroscopy(FTIR)spectra,X-ray diffraction(XRD)and backscattered electron(BSE)microscope.There is a certain mass ratio(2:3)of the LFFS to the CFA at which the compressive strength of the geopolymeric matrix is the highest.Leaching test shows that Cd in LFFS can be effectively immobilized in the geopolymer structure.Geopolymerization is not only a potential technological solution for reusing LFFS but also an effective immobilization method for LFFS treatment and disposal.

Recent research in mechanical properties of geopolymer-based ultrahigh-performance concrete:A review

Due to the growing need for sustainable and ultra-high-strength construction materials,scientists have created an innovative ultra-high-performance concrete called Geopolymer based ultra-highperformance concrete(GUHPC).Besides,in the last few decades,there have been a lot of explosions and ballistic attacks around the world,which have killed many civilians and fighters in border areas.In this context,this article reviews the fresh state and mechanical properties of GUHPC.Firstly,the ingredients of GUHPC and fresh properties such as setting time and flowability are briefly covered.Secondly,the review of compressive strength,flexure strength,tensile strength and modulus of elasticity of fibrous GUHPC.Thirdly,the blast and projectile impact resistance performance was reviewed.Finally,the microstructural characteristics were reviewed using the scanning electron microscope and X-ray Powder Diffraction.The review outcome reveals that the mechanical properties were increased when 30%silica fume was added to a higher dose of steel fibre to improve the microstructure of GUHPC.It is hypothesized that the brittleness of GUHPC was mitigated by adding 1.5%steel fibre reinforcement,which played a role in the decrease of contact explosion cratering and spalling.Removing the need for cement in GUHPC was a key factor in the review,indicating a promising potential for lowering carbon emissions.However,GUHPC research is still in its early stages,so more study is required before its full potential can be utilized.

Green synthesis of ZSM-5 using silica fume and catalytic co-cracking of lignin and plastics for production of monocyclic aromatics

ZSM-5 with hierarchical pore structure was synthesized by a simple two-step hydrothermal crystallization from silica fume without using any organic ammonium templates.The synthesized ZSM-5 were oval shaped particles with a particle size about 2.0 μm and weak acid-dominated with proper Brønsted(B)and Lewis(L)acid sites.The ZSM-5 was used for catalytic co-cracking of n-octane and guaiacol,lowdensity polyethylene(LDPE)and alkali lignin(AL)to enhance the production of benzene,toluene,ethylbenzene and xylene(BTEX).The most significant synergistic effect occurred at n-octane/guaiacol at 1:1 and LDPE/AL at 1:3,under the condition,the achieved BTEX selectivity were 24%and 33%(mass)higher than the calculated values(weighted average).The highest BTEX selectivity reached 88.5%,which was 3.7%and 54.2%higher than those from individual cracking LDPE and AL.The synthesized ZSM-5 exhibited superior catalytic performance compared to the commercial ZSM-5,indicating potential application prospect.

Optimum conditions and application of one-step fluorescent cyanoacrylate fuming method for fingermark development based on PolyCyano UV

Cyanoacrylate fluorescent staining has become a common method for developing latent fingermarks on light-coloured or white objects.The method requires two steps and skilled operation,and the handling process has the risk of damaging the ridge details or even biological samples.To take full advantage of the high-sensitivity fluorescence,recent research efforts on fluorescent cyanoacrylate have aimed to avoid rinsing after staining,add fluorescence to the cyanoacrylate,increase the fluorescence intensity and broaden the fluorescence spectral range.PolyCyano UV is a novel product that can be used to overcome the disadvantages associated with progressing to one-step fuming to directly develop fingermarks.To explore the optimal development conditions and application effects of PolyCyano UV,thermogravimetric differential thermal analysis,fluorescence spectroscopy and control variable analysis are used to determine and analyse the best conditions for using the reagent,including temperature,fluorescence excitation band,relative humidity and fuming concentration.The temperature range of the one-step fuming development method is 212.14℃–275.16℃,the wavelength range of the excitation light source is 235–580 nm,the relative humidity is 60%–80%,the concentration of the fume is 1–3g/m^(3) and the specific value is related to the surface properties of the object and the aged time of the fingermarks.Additionally,fluorescence spectroscopy shows that the excitation wavelength range of the light source is 235–580nm.Based on the best fuming condition,many common objects were selected to proceed to the application experiments,which allowed for a comparison with the traditional visualisation method,namely the Cyanobloom reagent+dyeing two-step development method.The comparison showed that latent fingermarks on most non-porous smooth surfaces,especially on light-coloured or white objects,were developed successfully.In addition,a comparative study with the conventional cyanoacrylate glue–fluorescent staining experiments showed that the effect of dyeing afterwards with Rhodamine 6G is better than the one-step method.The effect of dyeing with BBD is basically the same as that of the one-step method.

Effect of Different Silica Fumes on Properties of Al_(2)O_(3)-SiC-C Castables for Iron Trough

In order to improve the performance of Al_(2)O_(3)-SiC-C castables for iron trough,samples were prepared using brown corundum,dense corundum,activated alumina micropowder,ball pitch,and silicon as main raw materials,calcium aluminate cement as the binder.Several kinds of silica fumes(93SiO_(2),96SiO_(2),and 99SiO_(2))with different particle size distributions and chemical composition were added to research the effects on the properties of castables.The results show that the sample with 99SiO_(2) fume has high water requirement for molding,but the bulk density is the lowest,the apparent porosity is the highest,the oxidation resistance is the worst,and the permanent linear change on heating is low after firing at 1 450 ℃ for 3 h.The bulk density and the apparent porosity of the sample with 93SiO_(2) fume or 96SiO_(2) fume are equivalent,the hot modulus of rupture of the sample with 93SiO_(2) fume is the lowest,and the slag resistance of the sample with 96SiO_(2) fume is the best.The comprehensive performance of the sample with 96SiO_(2) fume is the best.

On the Combination of Silica Fume and Ceramic Waste for the Sustainable Production of Mortar

The combined use of silica fume(SF)and ceramic waste(CW)for the production of mortar is studied.Sand is replaced by 5%,10%,15%and 20%of CW while a fixed 5%percentage(%wt of cement)of SF is used.The results show that the best results are obtained by using silica fume and ceramic waste sand with 15%weight of sand and 5%wt of cement.With the addition of sand ceramic waste(SCW),the mortar compressive strength and density increase,while the porosity displays an opposite trend.The experimental analysis is complemented with theoretical considerations on the matrix strength and related improvements in mechanical behavior.It is shown that the agreement between the experimental values and the estimated values is good.

Enhancing Concrete Properties Using Silica Fume:Optimized Mix Design

In the current work concrete mixes containing(7.0-33.11)weight%silica fume as fractional substitution of cement with water/cement ratio(0.42-0.48)were formulated conferring to an implemented two factorial central composite design.The samples were water cured for 7,28,56,and 90 days.The samples were tested for compressive strength and density.The experimental results approved that compressive strength and density increase with age and with rising silica fume content up to 11.9 wt.%.Response surface analysis results for samples cured for 28 days confirmed that silica fume concrete with developed compressive strength(53.42 MPa)could be prepared by incorporation of 11.9 wt.%silica fume as a substituent for cement using a 0.42 water/cement ratio.An intensification in compressive strength and density(up to 39.3%and 2.6%)respectively was recorded for silica fume concrete mixes in contrast to Portland cement concrete.Overall,the research findings revealed that silica fume concretes prepared with appropriate silica fume content and water/cement ratio exhibited superior strength and density features candidate them to be used effectively in civil engineering structural applications.

三维水墨动画创意与制作新技术——以作品《中国风》为例

为了提高三维水墨动画创意与制作技术水平,以荣获全国二等奖的原创三维水墨动画作品《中国风》为例,介绍了一种三维水墨动画制作新技术:即使用3ds Max软件和Fume FX插件,将建好的三维模型赋予水墨特效,并使用后期特效软件After Effects制作运动镜头效果.与传统制作技术相比,该技术能在运动镜头中更好地表现水墨的晕染和流动感,减少了制作工序,提高了技术含量.

第一个通过EPA注册的溴甲烷替代物-Eco_2Fume

Eco2 Fume是由 2 %磷化氢和 98%二氧化碳混合而成的熏蒸剂。该熏蒸剂具有操作简单、价格低廉、对环境安全、对使用者安全、可持续药效、不易燃烧、熏蒸后无残渣、无未挥发分解的问题、容易达到和控制浓度、能有效杀灭各种虫态等优点。Eco2 Fume是第一个通过EPA注册的溴甲烷的替代剂。

EVAPORATION RATE OF SnS FROM SLAGS

Under inert atmospheres and 1473 K,the evaporation rate of SnS from SnO-FeO- SiO_2 and SnO-FeO-CaO-SiO_2 slags mixed with FeS was investigated by measuring the weight Ioss and composition of samples.The experimental results show that dur- ing sulfide fuming process the evaporation of SnOfrom slags is negligible in comparison with that of SnS.Addition of CaOto slags can enhance the evaporation rate of SnS.The differential rate equation of evaporation may be expressed as: -d(%Sn)/dt=k(%Sn)(%S) where,the apparent rate constant k was found to be 4.20×10^(-3) for SnO-FeO-CaO- SiO_2 system and 2.88×10^(-3) for SnO-FeO-SiO_2 system,respectively.

聚丙烯中空纤维人工肺纠治呼吸衰竭的实验研究

聚丙烯中空纤维人工肺纠治呼吸衰竭的实验研究天津市肺科医院人工肺研究室丁伟，张向，马景良，叶宏琛聚丙烯中空纤维是七十年代发展起来的一种新型材料。由于其疏水性和良好的血液相容性被广泛应用于人工肺制作。八十年代末，美国将聚丙烯中空纤维置入腔静脉进行血气交换...

Hardening and Optimizing of the Black Gold Thin Film as the Absorption Layer for Infrared Detector

This paper reports on the study of the black gold thin film as the absorption layer in the near infrared spectrum. The fabrication of the black gold thin film was achieved by a thermal evaporation technique in N2 atmosphere. Different evaporation conditions were attempted to optimize the absorbance of the black gold coating, especially the atmosphere pressure and the mass of evaporation source. The long-standing problem of black gold’s adhesion with the substrate was solved by fuming 502 superglues into the black gold layer, which had almost no impact on the absorbance performance. Layers produced at N2 atmosphere of 3×103 Pa show an absorbance exceeding0.9 inthe near infrared.

A Comparative Study on the Pozzolanic Activity between Nano-SiO_2 and Silica Fume

The pozzolanic activity of nano-SiO2 and silica fume was comparatirely stndied by X-ray diffraction （ XRD ） , differential scanning calorimetry （DSC）, scanning electron micrascopy （SEM） and the compressive , bond and bending streugths of hardened paste and concrete were also measured. Results indicate that the compressive strength development of the paste made from Ca（OH）2 and nano-SiO2, the reaction rate of Ca（ OH）2 with nano- SiO2 and the velocity of C-S-H gel formation from Ca （ OH）2 with nano-SiO2 showed marked increases over those of Ca（ OH）2 with silica fume. Furthermore, the bond strength at the interface between aggregate and hardened cement paste, and the bending strength of concrete incorporated with 3% .NS increased more than those with SF, especially at early ages. To sum up, the pozzolanic activity of nano-SiO2 was much greater than that of silica fume. The results suggest that with a small amount of nano-SiO2, the Ca（ OH）2 crystal at the interface between hardened cement paste and aggregate at early ages may be effectively absorbed in high performance concrete.

Effect of silica fume on the fresh and hardened properties of fly ash-based self-compacting geopolymer concrete

The effect of silica fume on the fresh and hardened properties of fly ash-based self-compacting geopolymer concrete （SCGC） was investigated in this paper. The work focused on the concrete mixes with a fixed water-to-geopolymer solid （W/Gs） ratio of 0.33 by mass and a constant total binder content of 400 kg/m3. The mass fractions of silica fume that replaced fly ash in this research were 0wt%, 5wt%, 10wt%, and 15wt%. The workability-related fresh properties of SCGC were assessed through slump flow, V-funnel, and L-box test methods. Hardened concrete tests were limited to compressive, splitting tensile and flexural strengths, all of which were measured at the age of 1, 7, and 28 d after 48-h oven curing. The results indicate that the addition of silica fume as a partial replacement of fly ash results in the loss of workability; nevertheless, the mechanical properties of hardened SCGC are significantly improved by incorporating silica fume, especially up to 10wt%. Applying this percentage of silica fume results in 4.3% reduction in the slump flow; however, it increases the compressive strength by 6.9%, tensile strength by 12.8% and flexural strength by 11.5%.

Influence of Fly Ash and Silica Fume on Water-resistant Property of Magnesium Oxychloride Cement

By incorporation of fly ash or silica fume into magnesium oxychloride （MOC） cement, a high water resistance material can be formed for successful industrial applications. The influences of fly ash and silica fume on water-resistant property were investigated by SEM and EDS. It is found that the incorporation of fly ash or silica fume can improve the water-resistance of the MOC. The improvement of the water resistance of the MOC incorporated with fly ash or silica fume may be attributed to the alumino-silicate 5·1·8 gel or silicate 5·1·8 gel.

Effect of Calcium Leaching on the Properties of Cement-based Composites

Leaching is one of the major factors that alter the mechanical properties of cement-based composites.This study is aimed to investigate the effect of leaching on the properties of cement-based composites.Specimens with two water/cementitious ratios and two mineral admixtures were tested.An electrical potential was applied to accelerate the leaching process.Compressive strength test,scanning electronic microscopy,thermogravimetric analysis and X-ray diffraction analysis were conducted.Test results demonstrated that the calcium leaching reduced compressive strengths of concrete specimens,and such effect was prominent on the specimens without mineral admixtures.The leaching resistance increased with a decrease in water/cementitious ratio and an increase in amount of mineral admixtures.The mineral admixtures would reduce the amount of calcium hydroxide and refine the pore structure through pozzolanic reactions.A fair relationship was found between the calcium leaching and the compressive strength.

Preparation and characterization of solidified oleanolic acid–phospholipid complex aiming to improve the dissolution of oleanolic acid

The purpose of this study was to prepare the oleanolic acid–phospholipid complex (OAPC) and then solidify it employing fumed silica by simple solvent evaporation technique to improve dissolution rate of oleanolic acid and oleanolic acid–phospholipid complex. The process of OA-PC was optimized and the type and proportion of fumed silica were studied by dissolution text. The structures of the phospholipid complex and solidified powder were also characterized by differential scanning calorimetry, X-ray diffraction, and scanning electron microscope. In the dissolution tests, OA from solidified powder was further released compared with that from pure OA and OA-PC in different kinds of dissolution media. These results suggest that the method of preparing solidified powder of oleanolic acid–phospholipid complex is suitable for enhancing the dissolution rate of OA and OA-PC.