中医论治艾滋病

严重的细胞免疫功能缺陷是艾滋病发生的内因，获得性的病毒是外因，外因只有通过内因才能致病。而细胞免疫缺陷的根本，全在于生养细胞的条件与环境。一切条件全靠人体的脏腑功能运动来创造，只有宏观而整体的调控人体的脏腑功能运动，才能化生人体所需要的一切物质。有了物质才能化生精神，有了物质和精神才能保障细胞的免疫功能，才能战胜并消灭各种病毒，才能恢复人体的身心健康，增强人体的免疫功能，保障人体的生命运动正常进行。     

中医五脏相关学说研究 ——从五行到五脏相关

五行学说对中医学有深刻的影响,体现了传统医学重视联系、整体的特点,但五行学说本身 有局限性,不能全面地反映事物间的普遍联系。中医以五脏配属五行,吸收了五行学说的精 华;又根据脏腑学说的理论,在实践中超越了五行的限制。因此,中医的理论可名为“五 脏相关学说”。在中医理论现代化中,可以将五脏之间的影响归纳为促进、抑制和协同3种 关系,从多种角度来阐明中医的整体性与联系观。     

哲学思想可以认识世界么？

唯物辩证法的实质和核心是“对证统一规律”即“矛盾规律”,我们要承认世界是“物质的”,要是用“对立统一规律”的思维来认识世界,那么“物质”应该有个对立面的,作为“物质”的对立面,不应该是“精神”,因为“物质”存在“空间”中,那么,相对于“物质”的应该就是“空间”!作为矛盾的“物质”和“空间”按照“对立统一规律”,物质和空间必然要存在着相互作用和相互联系!这也是矛盾规律的基本属性!那么,我们要是把“物质”和“空间”看作“矛盾”的两个对立面,我们会推导出许多与我们传统思维完全不同的,对物质世界现象的解释和推论!     

静态负重和负重作业姿势对人体平衡功能的影响规律

为研究人体静态负重和负重作业姿势对人体平衡功能的影响规律,采用自制的BSR-1型人体平衡功能测试仪对18名21～25岁健康男子多次重复测试,通过对静态直立姿势状态、重量负荷直立姿势状态和负重作业姿势下,人体平衡各项指标的分析得出:在不同负重作业姿势下人体平衡功能各项指标随着负重增加而增加,并且均有显著的影响,增加过程中有谷值出现,谷值出现的负重水平范围大致在9.0～11.0kg。     

人体平衡功能测试系统研究进展

平衡功能是人体的一项重要功能,日常生活中的各种动作都依赖有效的平衡作保障,人体姿态平衡的正常维持依赖于前庭、视觉和本体感觉系统输入以及中枢神经系统的整合。章较详细地介绍了目前人体静态、动态姿势平衡测试系统的研究现状、平衡评定的实验及应用现状,最后从劳动科学和人机环境与安全工程的角度考虑,着眼于林业工人在林区作业时施加给作业很大的劳动负荷而影响人体的平衡功能提出一些初步的构想。     

补钙小知识

钙是构成人体骨骼和牙齿的主要成分,且在维持人体循环、呼吸、神经、内分泌、消化、血液、肌肉、骨骼、泌尿、免疫等各系统正常生理功能中起重要调节作用。维持人体所有细胞的正常生理状态,都要依赖钙的存在。可以说,人体任何系统的功能都与钙有关,钙代谢平衡对于维持生命和健康起到至关重要的作用。     

什么是“二嚙英”

“二嚙英”（ｄｉｏｘｉｎ）是对人体健康极具威胁的环境污染物,它有强烈的致癌性,还可造成畸形,损伤人体的免疫功能、生殖功能等,特别是对以奶制品为主要食品的婴幼儿,产生的危害将更大。二嚙英是目前世界上已知的毒性最强的有毒化合物之一,国际组织已将其列为人类一级致癌物。这种物质不是有意生产出来的,而是由于处理固体垃圾不当造成的。二嚙英主要通过食品进入人体,由于这种有毒物质的化学成分很稳定,人体一旦摄入,不容易排出,并蓄积在人体的脂肪中。长期摄入二嚙英引起癌症的危险性很大,国际上对于人体每天的摄入量有严格…     

喝啤酒有学问

啤酒是一种低酒精度的营养型饮料，得到众多消费者的喜爱。啤酒又有“液体面包”之称，含丰富的氨基酸、维生素、有机酸、糖类物质，医学界有实验证明，啤酒对人体有一定的保健功能。     

想象力与摄影艺术创作

艺术是人们借助一定的物质材料和工具,借助一定的审美能力和技巧,在精神与物质材料、心灵与审美对象相互作用、相互结合的情况下,充满激情与活力的创作性劳动。     

五行生克五脏病变图的说明

早在数千年之前,祖国的中医学就吸收了“阴阳五行”学说为己用,并用五行之间的生克制化关系来表述中医学中脏腑功能与脏腑间复杂多变的关系.     

Insertion of triangulated surfaces into a meccano tetrahedral discretization by means of mesh refinement and optimization procedures

In this paper, we present a new method for inserting several triangulated surfaces into an existing tetrahedral mesh generated by the meccano method. The result is a conformal mesh where each inserted surface is approximated by a set of faces of the final tetrahedral mesh. First, the tetrahedral mesh is refined around the inserted surfaces to capture their geometric features. Second, each immersed surface is approximated by a set of faces from the tetrahedral mesh. Third, following a novel approach, the nodes of the approximated surfaces are mapped to the corresponding immersed surface. Fourth, we untangle and smooth the mesh by optimizing a regularized shape distortion measure for tetrahedral elements in which we move all the nodes of the mesh, restricting the movement of the edge and surface nodes along the corresponding entity they belong to. The refining process allows approximating the immersed surface for any initial meccano tetrahedral mesh. Moreover, the proposed projection method avoids computational expensive geometric projections. Finally, the applied simultaneous untangling and smoothing process delivers a high‐quality mesh and ensures that the immersed surfaces are interpolated. Several examples are presented to assess the properties of the proposed method.     

Certification Institutions Expected to Update and Transfer Information on Present Standards

Standards are the basis for production enterprises to organize production, ex-factory inspection, trade (delivery) and technical exchanges, product certification, quality arbitration and supervision.……     

From Industry 4.0 to Research 4.0. Development of High Performance Fibers in the Light of Digitization

We associate a variety of innovations with the term ＂Industry 4.0＂. The pioneer of many 4.0 modifications forms the basisfor the trend towards the integrated di...     

Flow calorimeter for enthalpy increment measurements on condensed gases

A flow calorimeter for enthalpy increment measurements on condensed gases is presented. A better knowledge of the properties of the liquefied natural gas is needed, and therefore a liquid loop has been designed for our flow calorimeter. The fluid loop in the calorimeter is designed in order to avoid the two-phase region, since two phases would give compositional disturbances in the measurements. The avoidance of the two-phase region is made possible by increasing the pressure of the test fluid after the measurement section, then heating the fluid at super-critical pressure past the critical point. Finally, the fluid is throttled to the low-pressure gas state at the inlet condition of the compressor that circulates the fluid. To perform the pressure increase, a new cryogenic pump has been designed. To evaluate the new equipment, measurements were taken on liquid ethane over the temperature range 146–256 K at pressure between 0.9 and 5.1 MPa.     

Refrigerators Enter a New Era of Health Preservation Frestech initiates the establishment of China's first standard for household sterilization refrigerators

On November 30, 2007, the China Association for Standardization (CAS) held a press conference at Beijing Diaoyutai State Guest House. Leaders from the China Household Electric Appliance Research Institute, the China Household Electric Appliance Association, and the China Consumers' Association attended and made speeches.……     

Optimum-Simulation von Ernteprozessen

Zusammenfassung Bei der Gestaltung von Ernteprozessen — beispielsweise des Prozesses Mähdrusch, Körnertransport und -abnahme — als transportverbundene Fließarbeitsverfahren mit mindestens zwei verschiedenen Arbeitsmitteln gibt es einen großen Optimierungsspielraum. Solche Prozesse sind mehrstufige Bedienungsprozesse mit gemischter Anordnung der Bedienungseinrichtungen. Außerdem besitzen sie stark ausgeprägte räumliche Aspekte. Es wird vor allem gezeigt, welche Merkmale solcher Prozesse in Simulationsmodellen abgebildet sein müssen, welche Zielgrößen in Abhängigkeit von welchen Einflußgrößen unter Berücksichtigung welcher Prozeßbedingungen ermittelt werden sollten und wie der Bewertungsprozeß zur Ermittlung der gewünschten Informationen gestaltet werden muß.     

Roman iron and steel: A review

ABSTRACT

The production of ferrous metal increased during the Roman Late Republican period, Principate and Empire. The direct bloomery process was used to extract the metal from its ores using slag-tapping and slag-pit furnaces. The fuel was charcoal and an air blast was introduced by bellows-operated tuyères. Iron formed as a bloom, often as a spongy mass of metal, which contained impurities from the smelting process, including unreacted ore, fuel, slag and fragments from the furnace walls, while the metal was often inhomogeneous with varied carbon contents. Blooms were either smithed directly into bars or ingots or they were broken up, which also allowed the removal of gross impurities and a selection of pieces with similar properties to be made. These could then be forge-welded together and formed into characteristically shaped ingots. Making steel in the furnace seems to have been achieved: it depended on the ore and the furnace and conditions within it. Surface carburization was also carried out. Iron and steel were used extensively in construction and for tools and weapons. Fire welding was often used to add pieces of steel to make the edges of tools and weapons, which could be heat-treated by quenching to harden them.     

A study of centrifugal cast high boron high speed steel

In the present study a high‐boron high speed steel (HSS) roll material was designed. Many expensive alloy elements have been substituted by cheap boron alloy, and high‐boron high speed steel roll has been manufactured by centrifugal casting method. The microstructures, mechanical properties and wear resistance of centrifugal casting high‐boron high speed steel roll have been investigated by optical microscopy (OM), scanning electron microscopy (SEM), and X‐ray diffraction (XRD) analysis, hardness test, impact test and wear test. The results indicated that the solidification microstructures of high‐boron high speed steel roll consisted of M₂(B,C), (W,Mo)₂(B,C), M₃(B,C), M₂₃(B,C)₆ type borocarbides and martensite, a small amount of retained austenite. Borocarbides were continuously distributed over the grain boundary. After quenching from 1050 °C, local broken network appeared in partial borocarbides, and fine secondary borocarbide precipitated from the matrix. After tempering from 525 °C, the amount of precipitated borocarbide increased significantly. After heat treatment, the hardness of high‐boron high speed steel roll excelled 60 HRC, and its impact toughness excelled 8.0 J/cm². The single groove steel rolling amount of high‐boron high speed steel rolls increases by 500% than that of bainite cast iron roll, when the rolls are used in K₁ mill housing of bar mill.     

Thixotropy of Systems with Shear Thinning and Plastic Flow Behavior

The definition of the thixotropy is a decrease in viscosity with time in shear and a subsequent recovery of viscosity after the shear deformation is removed.We ...