mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Enhanced ants system and its application

NP-hard combinational optimization problem is not solved very well until now. One enhanced ants system based on ants system is advanced after analysis of the deficiencies of existing ants systems. Some improvements are made in state transfer rule and local modification rule. Furthermore, the enhanced ants system can solve NP-hard combinational optimization problem with restraints and condition path. The successful application of TSP problem and transportation net problem indicates that the proposed system has stronger function and higher efficiency than the original system.
Effects of CeO2 doping on the structure and properties of PSN-PZN-PMS-PZT piezoelectric ceramics

Quinary system piezoelectric ceramics PSN-PZN-PMS-PZT were prepared by using a two-step method. The effects of CeO2 doping on piezoelectric and dielectric properties of the system were investigated at morphotropic phase boundary (MPB). The results reveal that the relative dielectric constant εT33 / ε0, the Curie temperature Tc, the piezoelectric constant d33, the mechanical quality factor Qm, and the electromechanical coupling coefficient Kp are changed with the increase of CeO2 content. On the other hand, the effects of CeO2 doping on the dielectric properties of PSN-PZN-PMS-PZT piezoelectric ceramics at high electric field are consistent with the change at weak electric field. The values of dielectric constant and dielectric loss are enhanced with the increasing of electric field.
推广格网系统

银川是黄河上游宁夏平原的明珠,是我国历史文化名城.这次重游银川,参加全国遥感学术会议,感慨万千,颇有启示:贺兰山先民岩画,那时的工具虽然原始简朴,但抽象意境很高,发人深省.我感到人类形象思维抽象能力是很高的，那时的石器……
姜附软胶囊抗炎镇痛作用研究

目的:观察姜附软胶囊的抗炎、镇痛、解热等作用.方法:用角叉菜胶致大鼠足肿胀法和二甲苯致小鼠耳肿胀法研究抗炎作用,热板法和扭体法研究镇痛作用,角叉菜胶致大鼠发热法研究解热作用.结果:姜附软胶囊对小鼠二甲苯致耳肿胀及角叉菜胶致大鼠足肿胀有抑制作用;能减少冰乙酸致小鼠扭体次数和提高热板致痛小鼠痛阈值;对角叉菜胶致大鼠发热有明显解热作用.结论:姜附软胶囊具有显著的抗炎、镇痛和解热作用.
股动脉损伤延迟性破裂的急诊显微修复

股动脉损伤一般由外伤引起,出血量大,即使闭合性损伤也会导致失血性休克或肢体缺血坏死.有些股动脉破裂大出血不是发生在损伤初期,而是距受伤有一段时间.这种类型的股动脉损伤在诊断和治疗方面都有其特殊性.我院自1994年3月收治这种特殊类型股动脉损伤共12例,经采取积极有效措施,不仅挽救了患者的生命,而且肢体血运及功能良好。
尺神经手背支营养血管筋膜皮瓣在手部皮肤缺损修复中的应用

目的介绍尺神经手背支营养血管筋膜皮瓣的切取方法及临床应用经验.方法对21例手部皮肤软组织缺损的病例,应用尺神经手背支营养血管筋膜皮瓣进行修复,切取皮瓣面积最大为5 cm×3 cm,面积最小为2.0 cm×1.5 cm.结果皮瓣全部成活,术后随访3～18个月,皮瓣色泽、质地良好,外形满意.结论尺神经手背支营养血管筋膜皮瓣血管恒定,切取简便,成活率高,皮瓣色泽、质地良好,是修复手部皮肤软组织缺损的较好方法.
胫前肌肌瓣在小腿中段开放性骨折创面修复中的应用

目的探讨应用胫前肌肌瓣在小腿中段开放性骨折创面修复中的应用价值.方法首先彻底清创,然后根据骨折实际情况选择1/3半管型钢板,交锁髓内钉,外固定支架行胫骨内固定,再在胫前肌外侧切起1 cm厚肌瓣并将其翻转180°覆盖胫骨前内侧创面,肌瓣用中厚皮片覆盖.结果临床应用26例,所有病例伤口均Ⅰ期愈合,无感染发生,骨折愈合时间为3～10个月,平均5.8个月.结论胫前肌肌瓣在手术中不用附加切口,不损伤其它血管,有较好的血运,对小腿中段开放性骨折的修复有良好的促进作用。
"一"字型小切口白内障人工晶状体植入术临床观察

目的探讨"一"字型小切口在白内障人工晶状体植入术中的作用,评价它在降低术后散光方面的优越性.方法随机抽取2组病例,分别做"一"字型6 mm切口与常规大切口(10～12mm)的白内障囊外摘除+人工晶状体植入术,观察术后第1周、第1个月的角膜散光程度.结果"一"字型切口与常规切口两组之间的差异有显著性(P＜0.05).结论"一"字型小切口能明显降低角膜散光,促进视力早日恢复.
Variation in the Agronomic and Morphological Traits of Iranian Chickpea Accessions

Landraces of chickpea (Cicer arietinum L.) in Iran have not been adequately characterized for their agronomic and morphological traits. Such characterization would be helpful in the development of improved cultivars, so in this study 362 chickpea accessions, collected from the major chickpea growing areas of Iran, were evaluated to determine their phenotypic diversity. High coefficients of variation (CVs) were recorded in pods/branch, seeds/pod, yield/plant, seeds/plant, pods/plant and branches/plant. Using principal component (PC) analysis, the first four PCs with eigenvalues more than 1 contributed 84.10% of the variability among accessions, whereas PC5 to PC10 were less than unity. PC1 was positively related to days to first maturity, days to 50% flowering and days to 50% maturity. The characters with the greatest weight on PC2 were seeds/plant and yield/plant, whereas PC3 was mainly related to pods/plant, seeds/pod and 100-seed weight, and PC4 was positively related to pods/branch and negatively to branches/plant. The germplasm was grouped into four clusters using cluster analysis. Each cluster had some specific characteristics of its own and the cluster I was clearly separated from clusters II, III and IV. These accessions are an important resource for the establishment of a core collection of chickpeas in the world.
Antiporter Gene from Hordum brevisubulatum (Trin.) Link and Its Overexpression in Transgenic Tobaccos

vacuolar Na+/H+ antiporter cDNA gene was successfully isolated from Hordeum brevisubulatum (Trin.) Link using the rapid amplification of cDNA ends (RACE) method. The gene was named HbNHX1 and was found to consist of 1 916 bp encoding a predicted polypeptide of 540 amino acids with a conserved amiloride-binding domain. Phylogenetic tree analysis of the Na+/H+ antiporters showed that the HbNHX1 gene shares 55.3%–74.8% similarity with the vacuolar-type Na+/H+ antiporters. Transgenic tobaccos that contain the HbNHX1 gene, integrated by forward insertion into the tobacco genome, were obtained via Agrobacterium tumerfaciens and characterized for the determination of the concentration of Na+ and K+ ions, as well as proline, in the presence of 300 mmol/L NaCl. The T1 transgenic plants showed more tolerance to salt and drought than did wild-type plants. Our data suggest that overexpression of the HbNHX1 gene could improve the tolerance of transgenic tobaccos to salt and drought through the function of the vacuolar Na+/H+ antiporter.
Optical A/D Quantizer Scheme Based on Parallel Phase Modulators

A high-speed and high-resolution optical A/D quantizer is proposed. Its architecture is discussed. Bit circuits are built by using the phase modulators in parallel. Based on the different character of the half-wave voltage for every phase modulator and the polarized bias design of incident light, the RF input signal is coded and transmitted in the form of optical digital signal. According to the principle of the architecture, the high-resolution quantizers with 8-bit and 12-bit, et al. are built, which operate at 100 GS/s.Their quantization noise is invariable almost with bit circuits increasing. The simulation result of 4-bit A/D quantizer is also given.
在强子对撞机上探测与规范玻色子关联产生的中性top-pion介子

虽然标准模型(SM)已被大量的精确实验所检验,但到目前为止,高能物理实验还未发现Higgs粒子,电弱对称性自发破缺(EWSB)机制还不清楚.电弱对称性自发破缺机制问题很可能涉及超出标准模型的新物理,并为最终解决质量起源问题提供线索,因此这个问题是当前粒子物理中最重要的问题之一,也是当前和未来的高能对撞机,尤其是强子对撞机的重要研究内容之一.……
从甘露消毒丸谈马兜铃酸肾病

中药是我国传统医学的重要组成部分,有着广泛的群众基础和应用范围.但长期以来,一直存在着认识上的误区--即认为中药无毒、无副作用,尤其是认为中草药来源于天然植物,更是安全无毒.而事实上,我国早就有对中药毒性的阐述,近年来不断增多的有关中药不良反应的报道,使这一问题变得更令人注目.国内外报道具有肾毒性的中药种类较多,其中部分含有致肾病的马兜铃酸成分,故该类药物引起的肾损害被称为马兜铃酸肾病.
Effects of van Hove Singularities on Transport of Quantum Dot Systems in Kondo Regime

In the present paper, we study the effect of van Hove singularities of conduction electron on the transport of a single quantum dot system in the Kondo regime. By using both the equation-of-motion and the noncrossing approximation techniques, we show that the corrections caused by these singularities are actually minor. It can be explained by observing that the singularities in the equations, which determine the electronic DOS on the dot, are integrable. Furthermore, we find that, although each line width function is divergent at van Hove singular points, the total divergence is canceled out in the final formula to calculate the current through the system. Therefore, as far as the qualitative properties of the system is concerned, these singularities can be ignored and the wide-band approximation can be safely used in calculation.
Inner Structure of Statistical Gauge Potential in Chern-Simons-Ginzburg-Landau Theory

Based on the decomposition theory of the U(1) gauge potential, the inner structure of the statistical gauge potential in the Chern-Simons-Ginzburg-Landau (CSGL) theory is studied. We give a new creation mechanism of the statistical gauge potential. Furthermore, making use of the φ-mapping topological current theory, we obtain the precise topological expression of the statistical magnetic field, which takes the topological information of the vortices.
特异性IFN-α2b多克隆抗体的制备及鉴定

干扰素α家族至少有15个亚型,彼此之间有78%～98%的同源性[1],尤其是IFN-α1和IFN-α2亚型之间的差异更小.以不同亚型的干扰素制备的多克隆抗体与抗原之间有很多的交叉反应.本文利用自行设计的亲和层析组合柱从复杂的多克隆抗体中除去与其他干扰素有交叉反应的抗体,得到针对IFN-α2b的特异性抗体.这种纯化IFN-α2b多克隆抗体的方法非常简便快捷.……
Formation Mechanism and Binding Energy for Equilateral Triangle Structure of Li3 Cluster

The formation mechanism for the equilateral triangle structure of Li3 cluster is proposed. The curve of the total energy versus the interatomic distance for this structure has been calculated by using the method of Gou's Modified Arrangement Channel Quantum Mechanics. The result shows that the curve has a minimal energy of -22.33860 a.u. at R=5.82a0. The total energy of Li3 when R approaches ∞ has the value of -22.28409 a.u. This is also the total energy of three lithium atoms dissociated from Li3. The difference value of 0.054508 a.u. for the above two energy values is the dissociation energy of Li3 cluster, which is also its binding energy. Therefore the binding energy per lithium atom for Li3 is 0.018169 a.u.=0.494 eV, which is greater than the binding energy of 0.453 eV per atom for Li2 calculated in a previous work. This means that the Li3 cluster may be formed in the equilateral triangle structure of side length R=5.82a0 stably with a stronger binding from the symmetrical interaction among the three lithium atoms.
沙漠生物地毯工程--干旱沙漠治理的新途径

我国是世界上荒漠化最严重的国家之一,荒漠化土地面积达2.64×106 km2,占国土面积的27.5%,其中尤以沙漠危害最为严重,其面积已达8.09×105 km2,而且,还继续扩大蔓延,平均每年有610 km2左右的沙漠出现活化,其中有310 km2土地沦为沙地.沙漠化不仅造成生态系统失衡,而且使可耕地面积不断缩小,对我国工农业生产和人民生活带来严重影响.我国西北干旱区沙漠和沙漠化土地,已成为中国乃至亚太地区沙尘暴主要源地之一,给国家社会经济造成了巨大的损失.因此,沙漠治理是国家在生态建设和环境保护方面的迫切需求.
铜陵矿集区构造-岩浆-成矿系统解析

铜陵矿集区构造-岩浆-成矿系统是板内环境下成矿作用的典例，该系统内的构造变形、岩浆活动和成矿作用均各自呈现出复杂表象，也显示出三者之间具有紧密的内在联系；通过引入复杂性系统模型研究的思路，对构造-岩浆-成矿系统进行了逐层解析，力图查明复杂表象下的简单控制机制，并澄清各地质作用之间的内在联系。
准南前陆盆地燕山期构造活动及其成藏意义

一般认为生长地层的时代就是构造形成的时代（Suppe 等，1992；Shaw等，1994）。准噶尔盆地南缘前陆冲断带发育地表可见的三排构造带，以齐古——喀拉扎背斜——清水河构造为主的第一排构造，以霍尔果斯——玛纳斯——吐谷鲁背斜为主的第二排构造，卷入三排构造的地层有侏罗系、白垩系、第三系和第四系，形成了现今复杂的地貌地形和地层分布，三排构造带的形成时间对油气评价和油气勘探意义重大。
塔河油田奥陶系储层地应力分布及裂缝发育规律研究

塔河油田奥陶系碳酸盐岩主要的储渗空间是裂缝和溶蚀孔洞,研究裂缝空间发育的展布规律对于正确认识储层和采取科学的布井、试油和开发具有重要的意义.因为地应力与裂缝的空间发育规律有直接的联系,利用测井资料研究裂缝和地应力分布规律,可以为勘探开发提供科学决策的重要依据.
虾类免疫系统组成及免疫机理探讨

研究对虾免疫系统和免疫机理,有效提高对虾自身抗病力,被认为是解决虾病暴发的根本途径之一.本文就虾类免疫系统及免疫机理研究作一综述,以期为开展虾类免疫防病工作提供理论基础.……
利用廉价蛋白源代替鱼饲料中鱼粉的研究进展

饲料费用占鱼类养殖成本的50%左右[1-3].饲料费用取决于饲料的价格和饲料系数,饲料价格往往取决于饲料中蛋白原料的价格,其中鱼粉是最昂贵的蛋白原料之一.……
《系列世界地图》简介

　　郝晓光主编的<系列世界地图>于2002年4月由湖北省地图院在武汉编制完成.现行世界地图适用于表达东、西半球的地理关系,其投影方法采用经线分割地球仪,是一种"经线世界地图".新设计的"纬线世界地图"适用于表达南、北半球的地理关系,其投影方法采用纬线分割地球仪.<系列世界地图>实施了"双经双纬"的设计方案:"东半球版"与"西半球版"为"经线世界地图","北半球版"与"南半球版"为"纬线世界地图".……
ANALYSIS ON AGRICULTRUAL INFORMATION DEMAND --Case of Jilin Province

With the rapid development of agricultural informalization in the world, the demand of agricultural information has been a focus in the international agriculture and information fields. Based on the investigation, this paper presented the four characteristics of the demand of agricultural information in China, including regionality, seasonality, great potential demand and variation in kind and level. The factors influencing the demand of agricultural information were analyzed by the Optimized Less Square (OLS) method. The result shows that, of all factors influcing agricultural information demand, the most important one is economy, the second is facility of information pass,and knowledge and education of user, credit of agricultural information service system and production situation follow. Taking Jilin Province as an example, this article also elaborated the agricultural information demand status, and deduced the regression model of agricultural information demand and verified it by the survey in rural Jilin.
星形胶质细胞的神经干细胞特性

胶质细胞是脑内数量最多的细胞,它与神经元之间的相互联系是在发育期就精确建立的.不同神经元的功能已有较深入的研究,与之相比,胶质细胞仍是非常神秘的细胞,特别是星形胶质细胞,除了对神经元提供重要的结构、代谢、营养支持外,它与神经元之间复杂的相互联系仍不清楚[1].本文将对星形胶质细胞作为神经干细胞/祖细胞这一最新发现作一综述.
SPATIAL GRADIENT ANALYSIS OF URBAN GREEN SPACES COMBINED WITH LANDSCAPE METRICS IN JINAN CITY OF CHINA

Urban green spaces have been arisen growing concern responded to the social and environmental costs of urban sprawl. A wide range of planning and policies has been and/or will be designed to protect urban green spaces and optimize their spatial pattern. A better design or planning of urban green space can make a major contribution to quality of environment and urban life, and furthermore can decide whether we can have a sustainable development in the urban area. Information about the status quo of urban green spaces can help planners design more effectively.However, how to quantify and capture such information will be the essential question we face. In this paper, to quantify the urban green space, a new method comprising gradient analysis, landscape metrics and GIS was developed through a case of Jinan City. The results demonstrate: 1) the gradient analysis is a valid and reliable instrument to quantify the urban green space spatial pattern precisely; 2) using moving window, explicit landscape metrics were spatially realized. Compared with quantifying metrics in the entire landscape, it would be better to link pattern with process and establish an important basis for analyzing the ecological and socioeconomic functions of green spaces.
VARIATIONAL ITERATION SOLVING METHOD FOR SEA-AIR OSCILLATOR MODEL OF INTERDECADAL CLIMATE FLUCTUATIONS

Atmospheric physics is a very complicated natural phenomenon and needs to simplify its basic models for the sea-air oscillator. And it is solved by using the approximate method. The variational iteration method is a simple and valid method. In this paper the coupled system for a sea-air oscillator model of interdecadal climate fluctuations is considered. Firstly, through introducing a set of functions, and computing the variations, the Lagrange multipliers are obtained. And then, the generalized expressions of variational iteration are constructed. Finally, through selecting appropriate initial iteration from the iteration expressions, the approximations of solution for the sea-air oscillator model are solved successively.
车底式炉焙烧

焙烧是炭素制品生坯在填充料保护下、装入专门设计的加热炉内进行高温热处理,使生坯中的煤沥青炭化的工艺过程.焙烧是炭素制品生产的主要工序之一,焙烧生产周期较长,而且能耗较高,生坯焙烧的质量对成品质量和后工序的成品率都有一定影响.……
磁共振成像在耳科疾病诊治中的应用

内耳疾病是导致耳聋的常见原因,严重影响着人们的身心健康和生活质量,因此对内耳疾病的诊治成为当务之急.然而内耳位置深在,结构细小复杂,耳科临床医师不能直观地发现内耳病变所在,从而极大地影响了对疾病的诊治.随着影像学技术的发展,高分辨率CT的出现为内耳疾病的诊治提供了许多客观信息.但是其只能帮助我们发现骨迷路异常,无法清晰地识别由脑脊液或内淋巴包绕的膜迷路和神经结构等细微软组织结构 [1,2] .……
食道异物合并咽和食道后壁血肿一例

患者女,64岁.入院前2 d于进食鱼后开始出现吞咽梗阻感,当即强行下咽米饭,并自行用"保心安"油用力涂擦颈前部,但吞咽梗阻感进行性加重,并伴有呼吸不畅感.无发热、咳嗽、咳痰、咳血、胸痛,无腹痛、腹泻、黑便,在外院行CT检查提示咽食道后壁占位病变.于2003年12月2日转入我科.查体发现口咽、下咽后壁明显肿胀,黏膜表面见广泛紫红色淤斑.……
双进路法取病理提高活检阳性率的临床观察

对可疑病变进行活检是明确诊断,指导临床治疗的必要手段.间接鼻咽镜及喉镜下取材,因鼻咽、喉咽和喉部形体不规则、深在,给观察病变和准确取病理造成很大困难.我们对传统方法加以改进,在纤维内镜的监视下,以鼻咽和喉活检钳取病理,活检阳性率明显提高.
外伤性颈内动脉海绵窦瘘法医鉴定1例

1案例资料伤者,女,39岁.2001年8月9日因交通肇事头面部被损伤.查体:神志清,颌下部有一长5.0cm的不规则伤口,深达颌骨面,创口内有大量玻璃碎片,伤口周围散在数个小伤口.伤后第2天出现右耳耳鸣,听力下降,有发闷感.经耳科会诊,诊断为右耳传音性聋.……
早期胚胎组织DNA检验确定生物学父亲1例

对于因强奸致孕的案例,通过对被害人胚胎组织进行STR-DNA检验进行法医物证学的亲子鉴定,从而推断相关犯罪嫌疑人.一般要求取3个月以上大小的胚胎组织,实践表明,对早期胚胎组织的内层细胞团进行检验具有可行性.……
慢性缺血性左肱骨头坏死法医学鉴定1例

1案例资料案情简介夏某,女,60岁.体态稍胖,自述于2002年10月23日被他人拳击殴打左肩部致伤.据2002年10月24日门诊病历记载:左肩部压痛,活动受限,X线摄片示左肱骨撕脱性骨折,临床诊断为"肱骨骨折".……
永磁直流力矩电动机堵转电压变化的实验与分析

在测试永磁直流力矩电动机的连续堵转转矩和峰值堵转转矩的同时,必须测试两种堵转状态的堵转电压(电流).实际测试中,一些电动机瞬间堵转电压变化却不快.为此,我们选择11种永磁直流力矩电动机作堵转电压变化的实验与分析,以便对它的规律有所了解.
胃得治治疗慢性胃炎及十二指肠球部溃疡的近期疗效

目的:为验证总结胃得治对慢性胃炎及十二指肠球部溃疡的疗效及不良反应.方法:30例慢性浅表性胃炎,30例慢性萎缩性胃炎服用胃得治每次2粒,每日3次,疗程3个月.30例十二指肠球部溃疡服用胃得治每次2粒,每日3次,疗程2个月.结果:慢性浅表性胃炎中医征候总体疗效的总有效率为86.7%,胃镜及病理学疗效的总有效率为86.6%;慢性萎缩性胃炎中医征候总体疗效的总有效率为46.7%,胃镜及病理学疗效的总有效率为40%.十二指肠球部溃疡临床症状疗效总有效率为83.3%;溃疡愈合的总有效率为53.3%;总体疗效的总有效率为56.7%.结论:胃得治对慢性胃炎及十二指肠球部溃疡有一定疗效,尤对慢性浅表性胃炎疗效显著,并随用药时间延长,疗效相随提高.对十二指肠球部溃疡有一定的疗效.
中药有效组分促粒系造血及升高白细胞作用的研究

白细胞减少症(简称白减)是由多种原因导致外周血白细胞总数持续低于4×109/L的一种综合征,也是目前临床常见病征,其发病原因与多种因素有关,如放、化疗后的副反应,感染,脾功能亢进,药物所致及不明原因者,以放、化疗后较多出现.白减的典型表现为精神萎靡,乏力,头晕耳鸣,抵抗力下降.白减在中医学属"虚劳","血虚"范畴,其病涉及五脏,但以脾虚与肾虚为主,脾虚则生化无源,气血不足:肾虚则精亏,温濡脏腑及卫外抗邪功能减弱.对本病的治疗,中医中药积累了丰富的经验,采取调补脾肾,补益气血等方法,通过复方配伍组成方剂,取得了显著的疗效.在治疗白减的过程中,不少中药及其有效组分被证明具有促粒系造血,升高白细胞等作用.本文仅就中药有效组分促粒系造血,升高白细胞作用的研究进展综述如下:……
急性胰腺炎恢复期合并急性心肌梗死伴胰腺炎复发1例诊治体会

本文报道1例急性胰腺炎(AP)恢复期并发急性心肌梗死(下壁、前间壁),继而伴随AP复发,期间发生5次心脏骤停、心源性休克、严重心律失常(室性心动过速、心室扑动、长间隙的窦性静止)、下肢静脉血栓形成及胰源性脑病等严重并发症,经及时诊断抢救获得成功的病例,并就有关问题试讨论如下.
曲美布汀联合双歧四联活菌片治疗腹泻型肠易激综合征34例

肠易激综合征(irritable bowel syndrome,IBS)是一种以腹痛或腹部不适伴排便习惯改变为特征的功能性肠病.腹泻型IBS主要表现为腹泻、腹痛、排便不尽感等[1].作者观察了双歧四联活菌片和曲美布汀联合治疗腹泻型IBS的临床疗效,并与单用曲美布汀对比,现将结果报道如下.
腰池置管注药快速治愈化脓性脑膜炎1例报道

患者男,15岁,以发热、持续头痛1 d、呕吐2次,于2004-04-05入院.体格检查:T 38.5℃,痛苦面容,Brudzinski氏征(+),四肢肌力5级,kernig氏征(-),病理征未引出.周围血白细胞36.5×109/L.头颅CT未见异常.初步诊断:化脓性脑膜炎.
Synthesis and Crystal Structure of a Cyano-bridged Bimetallic Complex K3(TMS)2(H2O)2Cr(CN)6 [TMS = Tetramethylene Sulfone]

The cyano-bridged bimetallic complex K3(TMS)2(H2O)2Cr(CN)6 with three- dimensional microporous structure was synthesized and characterized. The title complex (C14H20CrK3N, Mr = 601.78) crystallizes in monoclinic, space group C2/c with a = 14.357(4), b = 9.331(3), c = 19.180(6)(A), β = 96.754(5)o, V = 2551.6(13) (A)3, Z = 4, Dc = 1.567 g/m3, μ(MoKα) = 1.141 mm-1, F(000) = 1228, the final R = 0.0440 and wR = 0.0990 for 1760 observed reflections (I > 2σ(I)). In the crystal, two [Cr(CN) 6]3- units, four K+ ions and two oxygen atoms of two TMS molecules are linked to form a sixteen-membered ring and an extended three-dimensional structure.
无错性学习在记忆障碍康复中的应用

记忆障碍也称遗忘症,是脑血管意外、脑外伤和老年性痴呆等疾病的常见后遗症,也是阻碍这些疾病全面康复的最主要原因之一.目前国外学者对无错性学习治疗记忆障碍在基础与治疗研究方面都取得了一定进展[1-2].本文回顾了有关文献,就无错性学习在记忆障碍训练方面的应用略作介绍.……
复方中药治疗脂肪肝伴高脂血症的疗效

目的:探讨消脂化瘀汤治疗脂肪肝伴高脂血症患者的降脂作用机理及疗效评价.方法:应用消脂化瘀汤治疗47例脂肪肝伴高脂血症患者(观察组),并以45例服用西药东宝肝泰片作为对照,于服药前后检测胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白(HDL-C)及全血比黏度.结果:观察组治疗后TC、TG与治疗前比较均降低(P＜0.01),观察组TC、TG降低作用明显优于对照组(P＜0.01);HDL-C治疗后虽有升高,但两组比较差异无显著性(P＞0.05);观察组治疗后全血比黏度、血浆比黏度、还原黏度与对照组比较明显降低(P＜0.01).结论:消脂化瘀汤在降脂的同时,有一定降低全血比黏度的作用,是一种有效的中药降脂合剂.
口服莫雷西嗪治疗室性早搏引起左后分支阻滞

患者,女,70岁.因胸闷、心律不齐就诊,既往有冠心病、心律失常病史.查体:血压130/70 mmHg,X线检查示心肺无异常.听诊:心率74次·min-1,心律不齐,无杂音.心电图检查示窦性心律,79次·min-1,PR间期0.15 s,QRS波0.09 s,心电轴+68.,S-T-T无异常;诊断:窦性心律,心电轴不偏,不正常心电图,频发室性期早博.
不同种植年限大棚蔬菜地土壤养分状况研究

以江苏省苏南地区大棚蔬菜地土壤为例，研究了种植年限分别为1-2年、5年左右、10年左右大棚土壤的养分变化情况。研究结果显示：随着种植年限的增加，土壤有机质、全N、全P、速效P含量逐渐增加；土壤盐分、NO3^--N也随着种植年限的增加而逐渐增加，5年左右的大棚土壤含量最高，之后逐渐降低；而土壤pH、全K随着种植年限的增加缓慢降低。
Characteristics of Polyaniline/Si Heterojunction Solar Cell By Electrochemical Dye Sensitization

Using the electrochemical polymerization dye sensitization(ECDS) method, polyaniline (PAn),which is used as top region material in solar cells, is sensitized with direct blue dye(DS), and sensitized Al grid/DS-PAn/n-Si/Al heterojunction solar cells is prepared by ECDS. Influences of the ECDS on the absorption spectrum and the junction characteristics of the solar cell were discussed, and the output characteristics were measured. The results show that the absorption spectrum of the sensitized PAn films is much wider and stronger in Vis-range; the diode quality factor is about 6.3 and the height of latent barrier potential of p-n junction is 0.89 eV; the short-circuit current and the conversion efficiency of sensitized DSPAn/Si heterojunction solar cells are greatly improved, which the short-circuit current can increase 6 times,the fill factor is 57% and the efficiency can reach 1.42% under the illumination of 37.2 W/m2 , respectively.
Characteristics of High-power GaAs Laser Beams and Their Coupling with Fibers

The beams of 980 nm high-power LDs are analyzed, and the reasons that aspect ratio of LD beams is high are explained. It is certified by the test that cylindrical lens can efficiently compress the perpendicular divergence angle of the beam. Some typical and popular lensed fibers were compared and analyzed according to coupling characteristics. The factors which affect the coupling efficiency and tolerance of the wedged-shaped GRIN tipped lensed fiber are pointed out, and some methods to reduce the coupling loss of the lensed fibers are proposed finally.
右冠状动脉起源于肺动脉合并房间隔缺损1例

病人女,42岁.活动后胸闷、气促2周.查体:血压150/88mm Hg(20.0/11.7 kPa),心界大,P2亢进、分裂,胸骨左缘第2肋间闻及4/Ⅵ级收缩期杂音.X线胸片见双肺血多,肺动脉段凸出,右心增大.经胸超声心动图(TTE)示Ⅱ孔型中央型房间隔缺损(ASD).……
CpG DNA的免疫学活性及在鱼类疾病防治中的应用

研究发现,细菌中的CpG DNA和人工合成的CpG ODN可激活T细胞、B细胞、NK细胞等免疫活性细胞,产生多种细胞因子,增强机体的非特异性和特异性免疫,并诱导Th1型介导的免疫反应,是高效、安全的新型免疫佐剂.该文简要介绍CpG DNA的结构特点、免疫学性质以及在鱼类疾病防治中的应用.
鄂尔多斯盆地西缘的构造分区性探讨

鄂尔多斯盆地西缘东邻鄂尔多斯地块,西北部、北部与弧形展布的阿拉善地块以新生代的断陷相隔,西部紧邻北北西-北西西向弧形分布的六盘山褶皱冲断带,西南部则与秦祁褶皱带相接,中部恰好处于阿拉善和六盘山及秦祁褶皱弧形构造相交处.盆地西缘处于稳定的块体(鄂尔多斯地块)和多期活动、内部整体性较差的块体(阿拉善地块)边部,多期活动的褶皱造山带(秦祁褶皱带)的交汇复合部位,在不同构造性质,不同活动特征和物质属性"软"(褶皱带)"硬"(地块)差别较大,极度不均匀的构造环境内和多期活动过程中,该区受到多种物质运动状态、性质和方向的共同影响,在西缘不同的构造部位,构造特征及其表现和影响差别很大,这也是对西缘进行构造分区的所要考虑的重要因素.
CIMT2005中国国际机床展览会参观导引和亮点展品介绍(下)

优纳发(Unova)工业自动化系统公司所属的辛辛那提-兰姆特公司(Cincinnati Lamb)将展出4台新品机床:Mega系列HPC-800HP XT卧式加工中心、FTV5-1800五轴五联动立式加工中心、CFV800Xi立式加工中心和HTC150车肖中心.Mega系列 HPC-800HP XT臣式加工中心(图6),机床采用"T型"布局的整体床身,对称的箱中箱结构,其最大特点是X、Y、Z轴均采用双丝杠驱动,提高了机床的抗振性、运动平稳性和精度,X、Z轴的快移速度和切削进给速度可达80 m/min,加速度为1g、换刀时间1s(刀到刀),X、Y、Z轴采用光栅尺全闭环控制,定位精度0.008 mm,重复定位精度0.004mm.如需要,还可选配摆角为-120°～+60°的A轴摆动铣头,与X、Y、Z轴和工作台B轴实现五轴五联动加工.
塔里木盆地柯坪露头区寒武-奥陶纪层序构成样式

塔里木盆地柯坪露头区寒武-奥陶系为一套碳酸盐岩为主的地层,由发育在不同沉积背景上的碳酸盐岩组成,包括浅水碳酸盐岩台地、台地边缘浅滩和台地边缘生物礁、台地前积斜坡、碳酸盐岩陆棚和盆地等不同相带的碳酸盐岩.这些碳酸盐岩层序由于发育在盆地的不同相带和盆地发育演化的不同阶段,其沉积背景和构造背景明显不同,故控制这些碳酸盐岩层序形成的主导因素也有较大的差异,从而形成了一系列不同特征的碳酸盐岩层序.
宫腔镜下Nd∶YAG激光治疗子宫黏膜下平滑肌瘤

脱出于子宫颈口处的黏膜下平滑肌瘤是临床上常见的一种子宫黏膜下平滑肌瘤,传统的治疗方法是经阴道作黏膜下肌瘤切除术,术中在肌瘤蒂部留置血管钳24～72 h,将给患者带来很大的不便甚至造成感染.宫腔镜技术的发展,尤其是Nd∶YAG激光的介入,使得治疗方法有了新的突破.本文总结了1997年2月至1999年11月间我们采用宫腔镜下Nd∶YAG激光手术治疗67例子宫黏膜下平滑肌瘤的临床资料,并探讨其安全性和有效性.
抑肽酶活性测定中有关线性重合判定的商榷

抑肽酶(Aprotinin)是从牛肺或牛胰中提取、纯化制得的特异性蛋白酶抑制剂.对抑肽酶的检验,主要依据<中国药典>2000年版 [1] ,其中在效价测定项下,以N-苯甲酰-L-精氨酸乙酯盐酸盐为底物,测定供试品对胰蛋白酶对照品酶活性的抑制活力单位(E. P. U)时,要求"供试品与胰蛋白酶稀释液依法操作,所得时间-耗氢氧化钠滴定液体积间作图应为线性关系,且两条直线应基本重合".……
红外热像图在诊断末端血管病变中的应用性研究

为临床诊断十指末端血管病变及血管功能异常患者提供诊断标准.选取自愿接受试验的30例健康人,男、女各半,年龄35～50岁,分别测试冷刺激前、后各指末端温度,得出各指的温差变化及正常人各指的热分布梯度,并与临床诊断为末梢血管病变患者指端热图比较.结果,1.正常人各指间有一固定的热分布梯度,各指间自身比较,冷激发试验前后温差无明显改变,即热分布梯度无改变.2.正常人拇指温度最高,Ⅱ、Ⅲ、Ⅳ指次之,小指温度最低,其间差值分别约为0.5℃.3.正常人由于左右利手的原因,左右手之间热分布梯度存在差异倾向,利手侧热梯度差较非利手侧多不明显.
自由基代谢及TNF-α在大鼠脓毒症肝损伤发病机制中的作用及丹参的干预影响

目的:探讨自由基代谢和TNF-α在脓毒症肝损伤发病机制中的作用及丹参的影响.方法:根据处理不同将大鼠随机分5组,每组又分3h、6h、12h、24h和48h 5个时间点.Control组动物仅给3%戊巴比妥钠30mg/kg腹腔麻醉;Shma组翻动盲肠;模型(CLP)组行盲肠结扎和穿刺;Salvia组于行CLP后腹腔注射丹参注射液10g/kg.结果:从血清含量变化和细胞形态学检测确认CLP脓毒症模型造成了肝损伤.CLP组血清和肝组织MDA于6h时间点增高,48h达到峰值;血清和肝组织GSH-Px活性亦于6h时间点降低,48h达到最低值.与之相比,Salvia组MDA增高和GSH-Px活性降低的时间延后,且各时间点数值均与CLP组有显著差异.CLP组血清和肝组织TNF-α于12h时间点增高,24h达到峰值,而Salvia组峰值滞后CLP组,在48h达其峰值,并在12h及24h分别显著低于CLP组.结论:脓毒症所致的肝细胞损伤与TNF-α增加及自由基代谢紊乱有关.丹参对脓毒症肝细胞损伤保护作用的机制与干预自由及代谢及降低TNF-α有关.
高频宽温低功耗MnZn铁氧体材料的研制

按基本配方Fe2O3∶MnO∶ZnO=52.8∶36.5∶10.7(mol%),加入适量杂质,采用氧化物陶瓷工艺、平衡气氛烧结法,制备了低温度系数、低功耗及优良直流叠加特性的MnZn铁氧体材料.该材料适用于高频开关电源变压器.
慈溪磁体厂和南京电动自行车生产考察随笔

2004年11月陪日本技术访问团在长三角地区转了一圈,访问了八家磁体公司.我抽空顺访了早就想亲自看看的两个地方:一个是以生产廉价NdFeB磁体闻名的慈溪,另一个是电动自行车的生产基地--南京.
液态地膜对土壤物理性状的影响及增产效果

利用室内模拟试验和田间试验对抚顺研制的两种液态地膜试样品"F1"和"F2"对土壤物理性状的影响和在冬小麦的应用效果研究.结果表明:液态地膜可增加水稳性团粒和土壤稳定性熵(QS),降低土壤容重,增加土壤孔隙度,饱和导水率成倍增加,有利土壤蓄水保墒;可提高冬小麦的产量,产量随着用量的增加而增加,最高可达6.5%;产量的提高主要通过增加亩穗数和穗粒数实现的;当用量相同时,F2增产效果好于F1.
药品行政保护品种介绍:降血糖药(一)(待续)

格列美脲通用名:格列美脲(glimepiride).商品名:亚莫利(Amaryl).化学名:N-(4(2(3-乙基-4-甲基-2-氧-3-二氢吡咯-1-甲酰胺基)-乙基)-苯磺酰基)-N-4-甲基环己基脲.结构式见图1.
肾肉瘤超声表现1例

患者男,14岁.左腰部阵发性疼痛1个月,劳累时加重,1周前出现全程肉眼血尿,伴少许不规则血块.既往史:5个月前行盆腔腹膜后神经纤维瘤(有恶性倾向)切除术.查体:左侧腹部膨隆,左肋下可触及肿块,下缘平脐,光滑质韧,血压 14.6/10.6 kPa.超声检查:左肾外下部区域测及一 14.6 cm×10.8 cm×11.0 cm囊实性团块,以低回声为主,少部分为无回声,内透声差(图1).……
武陵山区新一轮扶贫开发和农业发展的战略对策--以湘西州、恩施州为例

一、1986年以来农业部对口扶贫武陵山区的绩效评价:1986年以来, 农业部对口定点扶贫武陵山区的湖南省湘西和湖北省恩施土家族苗族自治州,在促进地区经济增长和减缓贫困方面取得了重大的成就.
渠道防渗塑膜铺衬机的研究

研究的塑膜铺衬技术区别于现有的农田平面铺膜技术,首次采用主动、同步放膜和毛刷随动仿形展膜技术,一次作业完成渠底、渠边坡和渠顶沿塑膜铺衬(调整毛刷可适应不同的渠道断面),实现了渠道塑膜铺衬机械化作业,并通过试验进行了验证.根据需要还可进行单机机械化防渗塑膜铺衬作业,或与现有的混凝土渠道衬砌机联合应用,实现"柔性防渗,刚性防护"相结合的最新渠道防渗筑渠工艺.该项技术可大幅度提高施工效率,改善塑膜铺衬质量,降低劳动强度.
克山病流行现状与病因研究近况

克山病病死率高、致残率高,是严重影响人民身体健康的地方性心肌病.半个多世纪以来,克山病在流行病学和病因学研究方面取得了举世瞩目的成就.但是,目前病因尚未完全阐明,克山病仍有发生,发病谱也发生了变化.近年来围绕克山病的流行变化,对克山病病情和发病相关因素进行了连续15年动态监测,病因研究也取得了新的进展,现概述如下.……
钢轨在线超声探伤仪探头工作机构的研究与开发

依据铁道部标准,钢轨必须经过超声探伤才能出厂.因进口设备的机械部分与现场的具体生产工艺不适应,所以作者主持开发了一套钢轨在线超声探伤仪的探头工作机构.两年多的运行结果表明,该机构运行性能良好.本文全面地介绍了这套设备的各个组成部分和设计原理.
克山病控制中的几个关键问题

克山病的控制工作涉及病情监测、病因研究、预防、现患病人的治疗与管理、防治效果的评价以及开展这些工作的能力建设等各个方面.根据2004年全国18个克山病监测点的数据,估计目前有491～600万克山病病人,其中慢型克山病患者65～117万.……
运动图像的自适应多重搜索算法

提出新的图像块匹配算法,将归一化运动图像匹配准则用于心肌细胞特征点的运动矢量检测.针对图像局部极值问题,提出了多重三步搜索及自适应选择候选点算法,以及优选帧策略,以提高匹配精度和运算速度.
深海土工化学原位测试装置中控制系统的设计与实现

加强海底矿产资源的勘探与开发已成为各国的重要战略.本文结合我国当前发展现状,概述了在深海矿产资源勘探与开发中,关于海底土工化学原位测试装置中的控制系统的组成结构,重点介绍了有关各类电机控制模块的结构、功能和技术优化.
内耳局部给药及其研究进展

内耳疾病的治疗研究是一个进展缓慢的领域,尚有许多亟待解决的难题.近年来,材料科学、药物剂型和给药方式等领域研究不断发展,为提高内耳疾病的疗效带来了新的希望.本文综述了近年来针对内耳病变药物治疗的给药方式,侧重于圆窗膜给药的药物分布、吸收方面的研究进展,旨在为建立内耳疾病药物治疗的新方法提供思路.……