Z-SCAN TECHNIQUE FOR MEASUREMENT OF TOTAL CHOLESTEROL AND TRIGLYCERIDES IN BLOOD

The measurement of cholesterol and triglycerides in blood by Z-scan technique is proposed.The nonlinear refractive index of cholesterol and triglycerides was found to vary linearly with concentration.Hence by calculating the nonlinear refractive index it is possible to measure their concentration in the sample.These measured values are found in equivalence with conventional colorimetric method.

Nonlinear optical properties of [（CH3）4N]Au（dmit）2 using Z-scan technique

The third-order optical nonlinearities of [（CH3）4N]Au（dmit）2 （dmit = 4,5-dithiolate-1,3-dithiole-2-thione） at 532 nm and 1064 nm are investigated using the Z-scan technique with pulses of picoseconds duration. The Z-scan spectra reveal a strong nonlinear absorption （reverse saturable absorption） and a negative nonlinear refraction at 532 nm. No nonlinear absorption is observed at 1064 nm. The molecular second-order hyperpolarizability γ for the [（CH3）4N]Au（dmit）2 molecule at 532nm is estimated to be as high as （2.1 ±0.1） × 10^-31 esu, which is nearly three times larger than that at 1064 nm. The mechanism responsible for the difference between the results is analysed. Nonlinear transmission measurements suggest that this material has potential applications in optical limiting.

Literary Techniques Employed to Develop Celie's Character in The Color Purple

In 1982,Alice Walker’s The Color Purple,was published and became one of the best sellers.As the novel progressed,Celie's acquiescent behavior transformed into one of resilience and dignity.By incorporating the literary techniques of tone,symbolism,and juxtaposition into her novel,Alice Walker was able to develop Celie's character,emphasizing her progression from subservience to independence.

Nonlinear optical characterization of phosphate glasses based on ZnO using the Z-scan technique

The nonlinear optical properties of a phosphate vitreous system [（ZnO）x-（MgO）30-x-（P2O5）70], where x=8, 10, 15, 18, and 20 mol% synthesized through the melt-quenching technique have been investigated by using the Z-scan technique. In the experiment, a continuous-wave laser with a wavelength of 405 nm was utilized to determine the sign and value of the nonlinear refractive （NLR） index and the absorption coefficient with closed and opened apertures of the Z-scan setup. The NLR index was found to increase with the ZnO concentration in the glass samples by an order of 10-10 cm2·W-1. The real and imaginary parts of the third-order nonlinear susceptibility were calculated by referring to the NLR index （n2） and absorption coefficient （β） of the samples. The value of the third-order nonlinear susceptibility was presented by nonlinear refractive or absorptive behavior of phosphate glasses for proper utilization in nonlinear optical devices. Based on the measurement, the positive sign of the NLR index shows a self-focusing phenomenon. The figures of merit for each sample were calculated to judge the potential of phosphate glasses for application in optical switching.

Investigation on Third-Order Optical Nonlinearities of Two Organometallic Dmit2- Complexes Using Z-Scan Technique

The third-order nonlinear optical properties of two dmit organometallic complexes, [(CH3)4N] [Au(C3S5)2] (MeAu) and [(CH3)4N][Ni(C3S5)2] (Me Ni) in acetone solutions, were characterized us- ing a short pulse Z-scan technique at 1064 nm wavelength. Self-defocusing effects were found in both samples and stronger saturable absorp-tion was observed in MeNi solution comparing with that of MeAu. The origins were analyzed for the differences between the results. Two figures of merit W and T were also calculated to evalu-ate the suitability of two materials for all-optical integrated devices. The results of W=22.84 and T≈0 of MeAu make it an excellent candidate for the all-optical applications.

Z-Scan technique: To measure the total protein and albumin in blood

Z-scan technique is an effective tool for measuring the optical nonlinearity of the materials. By using this technique the measurement was made for total protein and albumin. The nonlinear refractive index of the total protein and albumin were found to vary linearly with concentration. Hence by calculating the nonlinear refractive index it is possible to measure their concentration in the sample. The values measured thus are found in equivalence with conventional colorimetric method.

Design of axial flaps with color Doppler flow imaging technique for repairing deep wounds of heels

To report the methods and effect of axial pattern flap on lower limb in repairing deep wounds of heels by using color Doppler flow imaging (CDFI) technique so as to solve the ever before problems that the vessel can not be displayed in designing axial flap.Methods Suitable axial flaps on lower limbs were selected according to the character of the wounds.There were 25 flaps including 10 cases of the distal-based sural neurovascular flap,nine medial sole flap and six medial leg flap.All the axial pattern flaps were designed on the basis of traditional design ways before operation;then,CDFI appliance with high resolution was used to examine the starting spot,exterior diameter,trail and length of the flap’s major artery.The flaps were redesigned according to the results of CDFI and transferred to cover the wounds.In the meantime,both the results of operation and examination were compared.Results The major artery’s starting spot,exterior diameter,trail and anatomic layers were displayed clearly,in consistency with the results of operation.The flaps survived completely and recovered well,with perfect appearance,color and arthral function.Conclusion CDFI is a simple,macroscopic and atraumatic method for designing the axial pattern flap on lower limb,can provide more scientific and accurate evidence for preoperative determination of flap transplantation and is worthy of clinical application.10 refs,4 figs,2 tabs.

Application of Different Image Processing Techniques on Aster and ETM+ Images for Exploration of Hydrothermal Alteration Associated with Copper Mineralizations Mapping Kehdolan Area (Eastern Azarbaijan Province-Iran)

The Kehdolan area is located at 20 kilometers to the?south-east of Dozdozan Town (Eastern Azarbaijan Province). According to structural geology, volconic rocks are situated in Alborz-Azarbyjan zone, and faults?are?observed?in?the?same direction to this system with SE-NW trend. The results show that kaolinite alteration trend with Argilic and propylitic veins?is the?same direction with SW-NE faults in this area. Therefore, these faults with these trends can be considered as the mineralization control for determination of the alterations. Different image processing techniques,?such as false color composite?(FCC), band ratios, color ratio composite?(CRC), principal component?analysis?(PCA), Crosta technique, supervised spectral angle mapping?(SAM), are used for?identification of the alteration zones associated with copper mineralization. In this project ASTER?data are process and spectral analysis to fit for recognizing intensity and kind of argillic, propylitic,?philic, and ETM+ data?which?are process and to fit for iron oxide and relation to metal mineralization of the area. For recognizing different alterations of the study area, some chemical and mineralogical analysis data from the samples showed that ASTER data and ETM+ data were?capable of hydrothermal alteration mapping with copper mineralization.?Copper mineralization in the region is in agreement with argillic alteration. SW-NE trending faults controlled the mineralization process.

用双色Z-SCAN法研究热效应的弛豫过程

用双色Z－SCAN法研究了热效应的弛豫过程，首次给出了为得到最大的测量灵敏度所满足的泵浦光束和参考光束的几何条件．在实验上对偶氮染料有机物热弛豫时间进行了测量。

Surface photometry and radial color gradients of nearby luminous early-type galaxies in SDSS Stripe 82

We make use of the images from the Sloan Digital Sky Survey Stripe 82（Stripe 82） to present an analysis of r band surface brightness profiles and radial color gradients（g-r,u-r） in our sample of 111 nearby early-type galaxies（ETGs） .Thanks to the Stripe 82 images,each of which is co-added from about 50 single frames,we are able to pay special attention to the low-surface-brightness areas（LSB areas） of the galaxies.The LSB areas affect the Sérsic fittings and concentration indices by making both of the indices less than the typical values for ETGs.In the Sérsic fits to all the surface brightness profiles,we found some Sérsic indices that range from 1.5 to 2.5,much smaller than those of typical de Vaucouleur profiles and relatively close to those of exponential disks,and some others much larger than four but still with accurate fitting.Two galaxies cannot be fitted with a single Sérsic profile,but once we try double Sérsic profiles,the fittings are improved：one with a profile relatively close to the de Vaucouleur law in the inner area and a profile relatively close to an exponential law in the LSB area,the other with a nice fitting in the inner area but still having a failed fitting in the outer area.About 60%of the sample has negative color gradients（red-core） within 1.5Re,much more than the approximately 10%positive ones（blue-core） within the same radius.However,taking into account the LSB areas,we find that the color gradients are not necessarily monotonic：about one third of the red-core（or blue-core） galaxies have positive（or negative） color gradients in the outer areas. So LSB areas not only make ETGs’Sérsic profiles deviate from de Vaucouleur ones and shift to the disk end,but also reveal that quite a number of ETGs have opposite color gradients in inner and outer areas.These outcomes remind us of the necessity of double-Sérsic fitting.These LSB phenomena may be interpreted by mergers and thus have different metallicity in the outer areas.Isophotal parameters are also discussed briefly in this paper with the following conclusion：there are more disky nearby ETGs that are identified than boxy ones.

Underwater Image Enhancement Using Customized CLAHE and Adaptive Color Correction

Underwater images degraded due to low contrast and visibility issues.Therefore,it is important to enhance the images and videos taken in the underwater environment before processing.Enhancement is a way to improve or increase image quality and to improve the contrast of degraded images.The original image or video which is captured through image processing devices needs to improve as there are various issues such as less light available,low resolution,and blurriness in underwater images caused by the normal camera.Various researchers have proposed different solutions to overcome these problems.Dark channel prior(DCP)is one of the most used techniques which produced a better Peak Signal to Noise Ratio(PSNR)value.However,DCP has some issues such as it tends to darken images,reduce contrast,and produce halo effects.The proposed method solves these issues with the help of contrast-limited adaptive histogram equalization(CLAHE)and the Adaptive Color Correction Method.The proposed method was assessed using Japan Agency for Marine-Earth Science and Technology(JAMSTEC),and some images were collected from the internet.The measure of entropy(MOE),Measure of Enhancement(EME),Mean Square Error(MSE),and PSNR opted as performance measures during experiments.The values of MSE and PSNR achieved by the proposed framework are 0.26 and 32 respectively which shows better results.

Modeling and Simulation of Textile Supply Chain through Colored Petri Nets

The purpose of this paper is to describe the business process modeling and simulation of a textile supply chain using Colored Petri nets. Our model takes into account both the source process and delivery logistics that exist between any two members of supply chain;moreover, we model other activities performed by the company such as manufacturing clothing. The model has been built to acquire a better understanding about the behavior of a textile company in the fulfillment of requests from costumers. The model has been built using CPN Tools. This model was built with modules for activities of the supply chain textile, e.g. receiving orders of customers, determination of production plan, procurement raw material, transportation of raw material, production and delivering products to customers. This modularized model offers some advantages to represent complex supply chains according to their structure and requirements. Thus, we can add modules easily depending on the necessary activities.

Application of Digital Technology in Color Test of Compound Lonicera Granules

[Objectives]The research aimed to study application of digital technique in color test of Compound Lonicera Granules.[Methods]A method of color identification of Compound Lonicera Granules based on digital technology was proposed,and the"four-point collection method of color data"was summarized through experiments.[Results]The method was used to test color of 168 batches of Compound Lonicera Granules,and it was found that the method had the advantages of fast speed,high accuracy and good repeatability.[Conclusions]The method was used to test color of 168 batches of Compound Lonicera Granules,and it was found that the method had the advantages of fast speed,high accuracy and good repeatability.

Third Order Optical Nonlinearities of C₄₅₀Doped Polymer Thin Film Investigated by the Z-Scan

In the present work, z-scan technique was used to study the nonlinear properties, represented by nonlinear refractive index and nonlinear absorption coefficient for Coumarin 450 (C450) doped PMMA as a function of concentration for two different solvents. The results show change of the effect from self-focusing to self-defocusing in closed aperture z-can (or change of the effect from two photon absorption to saturable absorption in open aperture z-scan), when the sample dissolved in low viscosity and more polar

An Analysis of Humanistic Color in Renaissance Paintings of Da Vinci

The analysis of paintings of Da Vinci aims to seek humanistic color, thus proving a boon for a deep understanding of Re?naissance. Through his household works Mona Lisa, Virgin and Child with Saint Anne, Virgin Benoit, The Last Supper and Virgin of the Rocks, it is found that man and God can coexist, but the value of human deserves more attention, both on the characterization and the utilization of art techniques.

超声弹性成像及超微血管成像诊断宫颈癌:单一方法与联合诊断对比

目的对比观察单一超声剪切波弹性成像(SWE)、超微血管成像(SMI)及其联合常规超声诊断宫颈癌的价值。方法回顾性分析178例经病理确诊宫颈病变患者,包括恶性32例(恶性组)及良性146(良性组),并将后者分为低级别或高级别宫颈上皮内瘤样病变、宫颈肌瘤、宫颈息肉及宫颈炎共5个亚组。分析病变常规超声、SWE和SMI表现,测量平均杨氏模量值(E_(mean))及SMI血流指数(Ratio);绘制受试者工作特征(ROC)曲线,获取其最佳截断值,据以预测宫颈良、恶性病变;以Kappa检验评估预测及诊断结果与病理结果的一致性,并比较单一常规超声、SWE及SMI及其联合诊断宫颈癌的效能。结果恶性组患者年龄大于良性组(P<0.05);恶性组SWE E_(mean)及SMI Ratio高于各良性亚组(P均<0.05)。分别以44.35 kPa、3.95%为最佳截断值,SWE E_(mean)及SMI Ratio预测宫颈良、恶性病变与病理结果的一致性分别为较好(Kappa=0.818)及中等(Kappa=0.453)。单一常规超声、SWE及SMI诊断宫颈癌的效能(AUC=0.845、0.914、0.892)均高于三者联合(AUC=0.806,校正P均<0.05);SWE及SMI诊断宫颈癌的敏感度分别为90.60%及93.78%,特异度分别为95.20%及72.60%。结论SWE诊断宫颈癌效能较高;SMI敏感度佳但特异度偏低。联合应用常规超声、SWE及SMI并不能提高超声诊断宫颈癌效能。

Clinical significance and influencing factors of linked color imaging technique in real-time diagnosis of active Helicobacter pylori infection

Background:Determining the Helicobacter pylori (H. pylori) infection state during the gastroscopic process is important but still challenging. The linked color imaging (LCI) technique might emphasize the mucosal color change after H. pylori infection, which might help the diagnosis. In the present study, we aimed to compare the LCI technique with traditional white light imaging (WLI) endoscopy for diagnosing active H. pylori infection.Methods:We collected and analyzed gastroscopic images from 103 patients in our hospital from November 2017 to March 2018, including both LCI and WLI modes. All images were randomly disordered and independently evaluated by four endoscopists who were blinded to the H. pylori status of patients. In addition, the H. pylori state was determined by both rapid urease test and pathology staining. The sensitivity, specificity, positive prediction value (PPV), and negative prediction value (NPV) were calculated for the detection of H. pylori infection. Moreover, the kappa value and interclass correlation coefficient (ICC) were used to evaluate the inter-observer variety by SPSS 24.0 software.Results:Of the 103 enrolled patients, 27 of them were positive for H. pylori infection, while the 76 patients were negative. In total, 388 endoscopic images were selected, including 197 WLI and 191 LCI. The accuracy rate for H. pylori evaluation in the corpus LCI group was significantly higher than other groups (81.2% vs. 64.3%-76.5%, χ2 = 34.852, P < 0.001). Moreover, the corpus LCI group had the optimal diagnostic power with the sensitivity of 85.41% (95% confidence interval [CI]: 76.40%-91.51%), the specificity of 79.71% (95% CI: 74.38%-84.19%), the PPV of 59.42% (95% CI: 50.72%-67.59%), and the NPV of 94.02% (95% CI: 89.95%-96.56%), respectively. The kappa values between different endoscopists were higher with LCI than with WLI (0.433-0.554 vs. 0.331-0.554). Consistently, the ICC value was also higher with LCI than with WLI (0.501 [95% CI: 0.429-0.574] vs. 0.397 [95% CI: 0.323-0.474]). We further analyzed the factors that might lead to misjudgment, revealing that active inflammation might disturb WLI judgment (accuracy rate: 58.70% vs. 76.16%, χ2 = 21.373, P < 0.001). Atrophy and intestinal metaplasia might affect the accuracy of the LCI results (accuracy rate: 66.96% vs. 73.47%, χ2 = 2.027;68.42% vs. 73.53 %, χ2 = 1.594, respectively);however, without statistical significance (P = 0.154 and 0.207, respectively).Conclusions:The application of LCI at the corpus to identify H. pylori infection is reliable and superior to WLI. The inter-observer variability is lower with LCI than with WLI.

卵巢-附件影像报告和数据系统分类联合血清学检查对卵巢-附件肿瘤的诊断价值

目的探讨卵巢-附件影像报告和数据系统(O-RADS)分类联合血清糖类抗原125(CA125)及人附睾分泌蛋白4(HE4)对卵巢-附件肿瘤的诊断价值。方法回顾性分析安徽医科大学附属亳州医院(亳州市人民医院)收治并病理确诊的卵巢-附件肿瘤患者90例,以病理结果为金标准,分析超声O-RADS分类、血清CA125、HE4对卵巢-附件恶性肿瘤的检出率。运用受试者工作特征(ROC)曲线分析O-RADS分类、CA125、HE4及三者联合应用对卵巢-附件肿瘤的诊断效能。结果90例卵巢-附件肿瘤中,良性61例,恶性29例。O-RADS分类中2、3、4、5类对恶性肿瘤的检出率依次增高,与良性肿瘤比较,差异有统计学意义(P<0.001),血清CA125、HE4对恶性肿瘤的检出率分别为72.00%、70.37%,与良性肿瘤比较,差异有统计学意义(P均<0.001)。O-RADS分类、CA125、HE4及三者联合诊断卵巢-附件肿瘤的曲线下面积(AUC)分别为0.783、0.753、0.762、0.909,联合诊断AUC高于任一单独诊断技术(P均<0.05)。结论超声O-RADS分类联合血清CA125、HE4有助于提高卵巢-附件肿瘤的诊断效能。

彩色多普勒超声与瞬时弹性成像诊断乙肝后肝硬化的价值研究

彩色多普勒超声检查与瞬时弹性成像技术是诊断乙肝后肝硬化的无创检查。彩色多普勒超声可通过肝脏形态、门静脉血流动力学与半定量评分对乙肝后肝硬化进行诊断,瞬时弹性成像可通过肝脏硬度值对肝硬化进行诊断。本文主要综述了目前彩色多普勒超声是如何对肝硬化进行诊断以及其在临床上的诊断应用、瞬时弹性成像是如何对肝硬化进行诊断以及其在临床上的诊断应用,二者联合诊断肝硬化的临床应用等方面,对肝硬化的诊断提供一定的参考意义,以期指导临床治疗。

七彩椒的引种与高产栽培

七彩椒属于下垂辣椒(Capsicum baccatum L.)栽培种,是一种既能观赏又能食用的辣椒,其加工品深受消费者的喜爱。近年来,为推动脱贫攻坚和实施乡村振兴产业,拓展农户致富渠道,在湖南汝城对七彩椒进行引种试验和示范推广。试验结果显示:植物学性状观测尤其是花器官观测到七彩椒的花冠中下部有黄绿色斑块;植株茎直立,植株生长势强,株高100 cm左右,株幅为90~130 cm;果单生,果长为2.0~3.5 cm,果肩径为2.0~3.0 cm,单果重质量为5~10 g,果肉肥厚、脆实,嫩果黄白色转紫色,成熟果红色;单株结果数在270以上,产量在1500 kg/667 m^(2)左右,最高产量可达到2000 kg/667 m^(2);田间抗病性表现中等。结果表明:在汝城县及周边类似气候条件下适应性良好,可为七彩椒在湖南大面积推广和高产栽培提供借鉴和参考。