bluuebunny/crossref_metadata_2025 huggingface dataset:
Prevalence of Adverse Reactions to Metal Debris Following Metal-on-Metal THA
Authors: Hasegawa Masahiro , Yoshida Kakunoshin , Wakabayashi Hiroki , Sudo Akihiro
Published: May 2013

The purpose of this study was to determine the prevalence of adverse reactions to metal debris (ARMD) following large-diameter metal-on-metal total hip arthroplasty. The authors examined the potential for using magnetic resonance imaging to screen for pseudotumors in 108 hips 2 years postoperatively. Serum cobalt and chromium concentrations were measured in 80 hips that underwent unilateral total hip arthroplasty. The authors considered pseudotumors and aseptic lymphocyte-dominated vasculitis-associated lesions to be ARMD and compared metal ion levels between hips with ARMD (ARMD group) with hips with no ARMD (non-ARMD group).

Magnetic resonance imaging revealed pseudotumors in 9 patients (10 hips, 9%). Five of these 10 hips were symptomatic and underwent revision surgery. Two other patients underwent revision surgery due to symptomatic cup loosening with aseptic lymphocyte-dominated vasculitis-associated lesions. Ten patients (12 hips) had ARMD. Serum cobalt and chromium concentrations were significantly higher in hips with ARMD than hips without ARMD. Other factors, including age, body mass index, sex, clinical score, acetabular cup inclination angle, and femoral head diameter, were not significantly different between the groups.

Elevated metal ion levels suggest that ARMD is associated with increased metal wear. Magnetic resonance imaging provides sensitive screening for pseudotumors following metal-on-metal total hip arthroplasty.
Predicting Pulmonary Embolus in Orthopedic Trauma Patients Using the Wells Score
Authors: Young Matthew D. , Daniels Alan H. , Evangelista Peter T. , Reinert Steven E. , Ritterman Scott , Christino Melissa A. , Thakur Nikhil A. , Born Christopher T.
Published: May 2013

The decision to perform computed tomography pulmonary angiography (CTPA) to rule out pulmonary embolism (PE) in orthopedic trauma patients is challenging. The Wells score is a commonly used clinical probability tool developed to determine the likelihood of PE and assist in determining the need for CTPA examination. This study evaluated the usefulness of the Wells score for predicting PE in patients admitted to the orthopedic trauma service.

All patients who were admitted to the orthopedic trauma service at the authors’ institution between 2001 and 2011 who underwent CTPA were identified. The Wells score was calculated retrospectively for each patient, and risk categories using the traditional and alternative interpretations of the Wells score were assigned. Pulmonary embolism was diagnosed in 27 (16%) of 169 patients who underwent CTPA. In total, 27 (0.39%) of 6854 patients admitted to the orthopedic trauma service were diagnosed with PE during initial hospitalization. Mean Wells score was 3.31 (95% confidence interval, ±.28) for the entire population, 3.32 for those without PE (95% confidence interval, ±.31), and 3.28 for those with PE (95% confidence interval, ±.72) (
P
=.91). Average times from admission to CTPA examination for those with and without PE were 6.18 and 5.7 days, respectively (
P
=.94).

No significant correlation existed between the Wells score and CTPA results, indicating that the Wells score is limited in predicting PE risk in orthopedic trauma patients.
Kinematic Effect of MGHL Incorporation into Bankart Repair
Authors: Garber Alexander C. , Argintar Evan , Shin Sang-Jin , McGarry Michelle H. , Tibone James E. , Lee Thay Q.
Published: May 2013

Surgical treatment for traumatic shoulder instability has progressed in tandem with the evolution of the current understanding of the anatomy and biomechanics of the shoulder. Proponents of incorporating the middle glenohumeral ligament (MGHL) in Bankart repair believe this technique could increase repair strength. The purpose of this biomechanical study was to compare the range of motion and humeral head kinematic changes that result from including the MGHL in a Bankart repair in an effort to identify possible changes in shoulder biomechanics as a result of this addition in surgical repair.

Six cadaveric shoulders were tested in 4 conditions: intact, Bankart lesion, repair excluding the MGHL, and repair including the MGHL. Each condition was tested for range of motion, glenohumeral translation, and humeral head apex position. Standard Bankart repair and repair with MGHL inclusion resulted in decreased range of motion, but no statistically significant difference was found between the 2 repair types (
P
=.846). Anterior translation was significantly reduced with both the Bankart repair (4.8±.9;
P
=.049) and included MGHL repair (4.6±0.9;
P
=.029). No statistically significant difference was found between both repairs (
P
=.993). Although both repairs showed posterior displacement of the humeral head apex when in external rotation, this trend only reached statistical significance when compared with the Bankart lesion in 90° of external rotation (
P
=.0456); however, no significant difference was found between the 2 repairs (
P
=.999).

Inclusion or exclusion of the MGHL in a Bankart repair does not significantly affect the range of motion, translation, or kinematics of the glenohumeral joint.
Reconstruction of a Baroque Open Beam Ceiling Based on Material Analysis
Authors: Kloiber Michal , Válek Jan , Bláha Jiří , Čechová Jitka
Published: May 2013

Reconstruction of a ceiling in the north-eastern wing of a former water fortress in Jeseník was carried out during the repair of its roof structure and replacement of the roof. The most damaged parts of the bearing ceiling beams were removed and partially replaced with new timber in the 70s of the 20th C. The way the work was carried out corresponded to the methods and approaches of the cultural heritage protection of that time. The replacement of damaged heads of ceiling beams with new timber that was fitted without connection to the original ceiling beams and only simply hanged on a metal girder can be considered highly provisional from the current perspective. That is why the repair of timber structures of the water fortress included also a reconstruction of the original ceiling system. Surveys focusing on the building archaeology and material assessing the condition of the incorporated timber were important for the final design of the repair and the concept of presentation of the Baroque ceilings.
Survey of the Part of Medieval Fortification System of Prague Lesser Town
Authors: Burgetová Eva , Fořtová Kristina
Published: May 2013

The paper deals with the historical and structural survey of the medieval stone bridge recently discovered in the Prague Castle area. The old masonry construction, probably dated back to 15th century, includes bridge arch and two pillars in a highly authentic state. Failures and deterioration processes of this historical structure are described. The important achievement of in situ inspection and laboratory analysis are presented, interventions and maintenance plan proposed.
Physical and Chemical Properties of Adhesives Based on Geocement for Restoration and Rehabilitation of Building Materials
Authors: Vozniuk Grigorii , Kаvalerova Еlena , Kryvenko Pavlo V. , Petropavlovsky Оleg
Published: May 2013

This paper covers the results of study of physico-chemical and mechanical properties of the adhesives based on geocements which have a number of advantageous properties, among them: high compressive and bond strength in the conditions of long-term exposure of various factors, excellent durability, etc. These adhesives are environmentally and user-friendly and safety, their cost is compatible to the known-in-the-art analogs. The results of study suggested to draw a conclusion that they could be successfully used for rehabilitation and restoration of the building materials such as concrete, ceramics, natural stone.
Investigations on Properties Determining Durability of Novel PCC
Authors: Malorny Winfried , Plath Marleen
Published: May 2013

Polymer-modified mortars have been used in concrete repair for decades. Typical polymeric mate-rials used for this purpose are those which are in the soft state at ambient temperature. Our own studies focus on hard polymeric materials (hard and brittle at ambient temperature) which offer promising potential for structural repair. Our contribution reports on the results of studies on freeze thaw salt resistance and acid resistance relevant to durability. The results are compared to unmodi-fied reference samples and show the major potential of PCC modified with hard polymers; the ben-efits of PCC are evident.
The Influence of the Addition of Secondary Materials to the Thermal-Technical Properties of Filling Materials
Authors: Keprdová Šárka , Bydžovský Jiří , Křížová Klára
Published: May 2013

The filling material is made up of technical Cannabis shives, hydraulic or air binders and other components. They are suitable for use as fillers in horizontal or vertical wooden structures such as rack systems. Thanks to its good thermal-insulating properties the filler may be used as thermal insulating filler in walls or floors. The article describes the behaviour of Cannabis padding materials used as secondary raw materials as the replacement part of the joiner component. The use of secondary raw materials (such as fly ash, fluid or classical slag), however, is conditioned by the maintenance of the same, or at least the best possible thermal-technical parameters of the resulting filling material.
Amelioration of the Porosity in Silicate Based Materials
Authors: Mészárosová Lenka , Drochytka Rostislav
Published: May 2013

This article deals with the application of lightweight concretes for thermal insulation purposes. The main aim is to increase their porosity, which is closely related to the thermal resistance of the substance. By selecting appropriate raw materials, we try to eliminate this imperfection and propose a material that would generate sufficient resistance to heat transfer to allow the reduction of costs associated with the insulated equipment operation, while preserving the heat resistance of such materials. The article outlines the designing of such material, its potential applications, advantages over existing materials, and some basic properties.
Long Term Behaviour of Portland Limestone Cement Concrete Exposed to Combined Chloride and Sulfate Environment. The Effect of Limestone Content and Mineral Admixtures
Authors: Sotiriadis Konstantinos , Tsivilis Sotirios , Kosíková Jana , Petranek Vít
Published: May 2013

The long term behaviour of limestone cement concrete, stored in combined chloride and sulfate environment, was studied, taking into consideration the effect of both the limestone content of the cement used and the mineral admixtures addition. Concrete specimens of seven different compositions were prepared. Three of them were made from ordinary Portland cement and from two Portland limestone cements (limestone content: 15% and 35% w/w). The rest four compositions were prepared by substituting a certain amount of the limestone cement (15% w/w limestone content) with natural pozzolana, fly ash, blastfurnace slag or metakaolin. The specimens were immersed in four solutions of various sulfate and chloride contents and stored at 5oC. Visual assessment of the specimens and mass measurements took place up to 55 months. XRD analytical technique was used to identify thaumasite in the deteriorated parts of the specimens. Higher contents of limestone in cement and of sulfates in the storage solutions resulted in more intensive concrete damage. The use of mineral admixtures improved the behaviour of limestone cement concrete. After 24 months of exposure, chlorides delay the deterioration of limestone cement concretes caused by sulfates. After 55 months, the presence of chlorides led to a greater mass loss for them. The specimens containing mineral admixtures showed more intensive deterioration at 24 months when chlorides were present along with sulfates. Their mass seems to not be affected by chlorides. Fly ash was proved as the most efficient material to improve limestone cement concrete's performance, while concrete containing metakaolin suffered from significant damage after 55 months. XRD analysis showed that the damage observed was due to the formation of thaumasite.
Optimal Design of NPP Containment Protection Against Fuel Container Drop
Authors: Králik Eng Juraj
Published: May 2013

This paper presents a optimal design of a damping devices for the protection of the reinforced concrete structure of a nuclear power plant (NPP) against the impact loads from a container of nuclear fuel of the type TK C30 drop. The finite element idealization of the building structure is used in space. The interaction of the soil-structure, as well as the fluid-structure of the deactivated basin is considered in space. A steel pipe damper system is proposed for the dissipation of the kinetic energy of the container is free fall. The Newmark’s integration method is used for the solution of the dynamic equations.
Efficiency of Liquidation of Biotic Pests Using Microwave Radiation
Authors: Novotný Miloslav , Škramlík Jan , Šuhajda Karel , Sobotka Jindřich , Gintar Jan , Kalábová Tereza
Published: May 2013

Microwaves are electromagnetic waves of frequencies from 300 MHz to 300 GHz, corresponding to wavelengths from 1 m to 1 mm. For industrial application is allowed more frequencies, but we are mainly interested in the frequency 2 450 MHz, a wavelength of 12,2 cm, which we use in our applications. The heating occurs so that the electric field in the water molecules orient themselves according to polarization. Microwaves are a classical electromagnetic radiation with frequency lower than the solar radiation and therefore leave no residual radiation harmful to health. Using the device is completely safe, damage to health can occur only by direct irradiation of a few cm for several minutes, either intentionally or careless handling of the machine.
Hydrophobized Lime Plasters as Protective Surface in Wet Rooms in Monument Preservation
Authors: Wolff Britta
Published: May 2013

The use of lime plaster as a protection of building units against moisture is very common in the monument preservation, but controversially discussed. Historical buildings often demonstrate the problems of the two building materials, in particular the insufficient adherence between clay and lime in the course of time. Previous results of research brought out contradictory statements. The project especially focuses on the compressed, hydrophobic polished lime plaster Tadelakt, which can act as a protection of surfaces in wet rooms with climatically extreme conditions like increased humidity and high temperature. Reported are the results yielded in the research project which covers the investigations to improve the mechanical adherence and to analyze the chemical reaction between the both building materials.
Several Comments on the Broumov Group of Churches Using Experiances with Water Table Variation on other Historical Sites
Authors: Kuklík Pavel , Záleský Jan
Published: May 2013

The Broumov group of churches represents an integral part of Bohemian baroque architecture. The famous Dientzenhofer family of architects, that helped define the Bohemian baroque style in the early 18th century, designed the Broumov group for the governing Benedictine abbey of St. Wenceslaw in Broumov. Variation of water table together with particular site conditions can cause mechanical damage with crack propagation and biological deterioration, as well. We prepared the project on advanced monitoring of stability and complex evaluation of the technical state of the structures proposing the expert remediation using comprehensive, complete elucidation and description of actual causes of degradation of bearing parts of the structure. Results of previous research connected with the Prague Castle monitoring are presented in the paper.
Role of the Geologists in the Process of Monuments Ashlar Masonry Repair
Authors: Kovářová Kateřina , Schröfel Jan , Chamra Svatoslav
Published: May 2013

The aim of the contribution is introduce the role of the geologist in the process of the restoration of monuments ashlars masonry. Within the frame of our project, we participate on the reconstruction of battlements of the castle Kost, which were built predominantly from sandstones. These stones undergo to weathering processes and so they are damaged. Therefore, it has been necessary to restore and even change some blockstones. In cooperation with the experts from other branches, especially restorers and preservationists, the building blocks suitable for exchange were selected and the new replacement rock material was chosen. As it is obvious from the process of this reconstruction, the participation of geologists is indispensable.
Research on the Construction of Saving-Energy Building Modular System
Authors: Zhang Yong , Wang Qian Kun , Huang Qian
Published: May 2013

After surveying and analyzing many energy-saving building cases, we put forward energy-saving building modular system. According to the system elements which are building types, structure types, building palisade structure system, renewable energy type, energy saving rate, renewable energy rate and capital contribution rate, we divide the system into 18 energy-saving building modules. And this article focuses on the construction principles, system, system composition and system elements purposes. Also we can use this system to design saving-energy buildings with menu type which can not only reduce the repeat design work, but also help owner learn the property of technology and economy in advance to facilitate and adjustment scheme in time, so that we could reduce the waste of time, money and material. Therefore energy-saving building modular system is an innovation which is of great significance in energy-saving building research.
Study on Sustainable Construction and Improvement of Dwellings in Huhhot and Baotou Area of Middle Inner Mongolia
Authors: Sun Li Ping , Yin Jun Feng
Published: May 2013

The idea of sustainable development has made energy saving of buildings increasingly popular. In this paper, the dwellings in Huhhot and Baotou area of Inner Mongolia are taken as the research object. After analyzing the original characteristics of the dwellings, some problems identified in the process of the construction and use are put forward, and the necessity of green sustainable design is confirmed. Then some specific strategies of sustainable construction and improvement are discussed, namely: reasonable partition of thermal environment, energy saving design of enclosure structure, the utilization of solar energy, natural ventilation design, green space layout, and the collection and recycling of rainwater.
Design Research on Building Integration of Ceramic Solar Collection System
Authors: He Wen Jing , Liu Hai Ping
Published: May 2013

Compared with conventional solar collectors, ceramic solar collectors have the advantages of low price and easy combination with buildings. The project emphasizes on the integration between ceramic solar collectors and buildings, and the content concludes structures of components, component design, collection systems and heat utilization. Finally, hot water will be supplied according to building functions, at the same time it can satisfy appearance demands of buildings.
Energy-Saving and Reuse of New Energy Resource in Green Architecture — Science and Technology Industry Building of Sino-Singapore Tianjin Eco-City
Authors: Tian Yong , Zhang Chang Rui , Wen Quan
Published: May 2013

As a result of economy development and the increase human demands, lack of energy has become a serious problem. Energy-saving can not be ignored, and has attracted more and more attention home and aboard. This thesis makes an in-depth discussion and exploration on energy-saving and reuse of new energy through data analysis on energy-saving data of the Science and Technology Industry Building Project of Sino-Singapore Tianjin Eco-city.
Research on the Balance between Green Building’s Environment and Economy in China
Authors: Li Jie
Published: May 2013

As an important means for human beings to transform nature, modern architecture is non-sustainable in several aspects: site damage, indoor air pollution, energy resources consuming in large quantities and so on. This series of problems strongly suggest that the construction industry should take the road of sustainable development to promote green buildings. By evaluating the environmental characteristics and economic characteristics of green building through examples, this paper explores how to better achieve the harmonization between social economy and environmental protection.
Regional Expression and Innovation of the Long-Span Building
Authors: Li Xin , Li Ling Ling
Published: May 2013

Architects’ response on geographical culture has become an innovation of long-span building design, though it has always been overlooked by designers. This paper analyzes and discusses the connotation of regionalism and its importance on the configuration of long-span buildings. In addition, it summarizes and compares examples concerning natural and cultural factors of regional condition. In this way, this paper concludes that the exploration of local nature and humanity, and the communication of the inner spirits of regional culture are the main directions of the innovation and regional expression of long-span architecture.
Materials and Resources Items in Green Building Certification in Korea: Critiques and Suggestions
Authors: Lee Kang Guk , Hong Won Hwa , Jang Cheol Yong , Ahn Byung Lip , Kim Tae Woo
Published: May 2013

In this study, critiques and suggestions on the materials and resources items in the current green building certification system in Korea. The green building certification system in Korea for promoting the construction of high-energy-efficiency buildings use. Korean green building certification system are based on the marks obtained from the Energy Efficiency Index Report.
Innovative Materials in Interior Design: Organic Light Emitting Textiles (Oleds)
Authors: Kasapseçkin Mustafa Adil , Altuncu Damla
Published: May 2013

Most of us recognize the textile materials fromthe clothing or home textiles that we have used in daily life. As the usageareas of the textile materials are not limited to these, these materials areused in almost everywhere from the diapers to the nylon fiber, from the healthproducts in the hospitals to the architectural covers. Especially most textilematerials used in interior design are directly related to the areas such asdesign, art, technology and architecture. The textile sector which has directrelations with many developing areas develops in parallel to the today’sadvanced technology. Together with this development, due to the competitiveattitudes of the firms and the developed technology, the importance given tothe usage of the innovative materials in the today’s interior spaces hasincreased. One of the innovative materials developed is organic light emittingtextiles (OLED). Due to the light emitting textiles that will ensure us to lookat the textile materials from a new angle in interior design, it is expectedthat the interior design understanding will change. In this article, theorganic light emitting textiles are examined and it is aimed to discuss theirusage areas, advantages and disadvantages in interior design.
Evaluation of the Embodied Energy for Building Materials in Turkey
Authors: Öztaş Saniye Karaman , Ipekci Cahide Aydın
Published: May 2013

Building materials damage to the environment during each stage of their life cycle. An important part of these damages is due to the energy consumption during the process. Many building materials sector like cement, iron, steel, glass etc use high rates of fuel and electrical energy. Greenhouse gases resulting from the use of energy lead to global warming that cause climate change. And acid rain damages living and non- living beings on the earth. In addition, volatile organic compounds and granular particles as a result of combustion of fossil sources enter the human body through the respiratory or digestive systems which lead to serious illnesses. Therefore, responsible use of energy is important for both resource efficiency and reducing environmental impacts. An important part of life cycle energy of building materials is consumed during the production and transportation processes. In this study, it is aimed to investigate initial embodied energy of cement, marble, glass and aluminum sectors in Turkey. The current situation was stated by the method of literature review and inventory analysis of the energy flow to calculate the amount of the total energy consumption of the building materials during these processes was recommended. Thus, it will be possible to compare the amount of total energy consumption in different production plants.
Effect of Perforated Ceilings on the Floor Impact Noise in Multi-Storied Residential Buildings
Authors: Kim Kyung Ho , Kim Kyoung Woo , Choi Hyun Jung , Yeon Jun Oh , Kim Jae Ho , Jeon Jin Yong
Published: May 2013

In this study the effect of a perforated ceiling on the floor impact noise was investigated. Although a ceiling with an air cavity is effective in the reduction of noise, the level of heavy-weight floor impact sounds might also be increased. In order to determine whether this is the case, various ceilings were constructed with differing levels of perforation, and the sound pressure level due to impact noise was measured. We show that a ceiling without perforation led to an increase in the level of heavy-weight floor impact sound of around 5 dB, whereas a perforation ratio greater than 0.8% did not increase this level. Based on these measurements, commercial perforated ceilings that are applicable to actual residential buildings were designed, and the reduction of floor impact noise was verified.
Strength Improvement of Early Age Unfired Soil Lime Bricks
Authors: Purnomo Heru , Priadi Dedi , Lumingkewas H. Riana
Published: May 2013

Despite their low performance quality and aesthetics, non-standard bricks are commonly used in the construction of low-rise buildings and rural houses in Indonesia. These bricks are produced traditionnally in home run plants with little adherance to appropriate mix designs. These unfired soil lime bricks enter the market within 2 weeks of production, which inflicts potential loss to the buyers due to their low performance quality. The paper discusses strength improvements of these early age bricks through 2 methods. The first method is by adding the optimal amount of mixing water to the soil and lime mix. The second method is by adding untreated coconut fibers with a 2.5 cm fiber length as additional reinforcements. The effect of 3%, 5% and 7% fiber addition to the mechanical properties of bricks were investigated. Laboratory tests showed that higher compressive strengths, compared to that of traditional unfired soil lime bricks, could be achieved through the 2 proposed methods. The bricks reinforced with higher percentage of untreated coconut fibers have better modulus of ruptures.
The Calculation of Energy Performance of Buildings with Summer Degrees
Authors: Tronchin Lamberto
Published: May 2013

The energy performance of buildings (EPB) is usually calculated by reference to winter conditions. All standards, technical, normative and national laws consider building calculation of costs and energy performance during winter months. The energy performance of a building is related to outside temperature and comfortable inside temperature, therefore EPB depends on external weather trends. The “measure unit” of weather trends, used in some calculation models, is the Day Degree which represents the hours when the outside temperature is below the inside temperature standard. However, world climate changes and the diffusion of HVAC (Heating, Ventilation and Air Conditioning) systems, especially single-unit systems (split system), introduced the concept of comfort in the summer months and weather derivates - Hot Day Degree (HDD) and Cool Day Degree (CDD) used to establish weather risks for insurance purposes. HDD and CDD can be used to plan, check and evaluate energy performance before and after an energy project. To evaluate energy performance in a building in summer conditions we can use the studies on comfort perceptions to translate a Day Degree concept in “measured units” to evaluate with respect to a normalised cooling regime. In this article the outside temperature Summer Day Degree trend is proposed, within fixed temperature values (comfort range), humidity, wind velocity, and radiation incidence. Moreover, an example of how the Summer Day Degree can be applied is presented.
Energy-Saving Reconstruction Research of Old Buildings in Hot Summer and Cold Winter Regions
Authors: Zhang Xu , Lu Feng , Yan Yin Fei
Published: May 2013

By investigating and analyzing the building envelope and energy consumption of old buildings in hot summer and cold winter regions in China, and with applying integrated passive energy-saving methods, the article puts forward several reasonable and practical energy saving strategies for old teaching buildings. Three aspects are examined, namely the transformation of solar window, the transformation of external wall insulation and the transformation of eco-roof, following the renovation of No.7 Teaching Building in Chongqing University.
The Study on Low Power Consumption Technology of the Walls Based on Powdered Caol Ash and Karst Slab Building Material — Take for Example Karst Region in Guizhou, China
Authors: Wang Hong , Chen Jing
Published: May 2013

Guizhou is situated in the biggest continuous karst strap. Carbonate rock cropping-out reaches 130,000 square kilometers. It is also a province quite rich in coal resources. There have been constructed 12 thermal power plants fueled with coal. As the inevitable outcome, the discharge of coal ashes each year reaches over 1,580,000 tons. Based on this special material produced by the natural environment, this study designs a kind of powdered-coal-ash building block walls, which not only preserve heat and insulate heat, but also embody the regional features, thus making the powdered coal ash and karst rock become the real green material. With the respect to the designing method, we produce, in accordance with the (JGJ134-2001) standard , a kind of sandwich building blocks, which can retain heat and insulate heat. Then on the block outside, we hang stone slabs to make the slab and the block form a certain width ventilation space, thus a sandwiching wall of powdered coal ash and slab is constructed. By making use of heat pressure principle, heat is discharged. Through theoretical analysis, and simulations, etc., it shows that karst rock material and the powdered coal ash are green materials, which play a necessary part of regional features, heat preservation and heat insulation.
Experimental Research on Unconfined Compressive Strength of Artificially Cemented Sand
Authors: Zhuang Xin Shan , Zhao Can , Wang Xu Min
Published: May 2013

Unconfined compressive strength tests and calcium carbonate (CaCO3) quantitative chemical tests are conducted on artificially cemented sand which have different cement ratio (Cv) and curing time (t). Through the analysis of experimental results, the unconfined compressive strength (qu) of cemented sand are affected by curing time (t), cement ratio (Cv) and void ratio (η). Test results show that the longer the curing time (t), the lower the void/cement ratio (η/Cv) and the higher calcium carbonate/calcium hydroxide content ratio (CaCO3/Ca(OH)2 ratio or mC/mH), the higher the unconfined compressive strength (qu) of cemented sand. It is established the compressive strength equation based on the variables of cement ratio (Cv), void ratio (η) and curing time (t). By mC/mH-qu curve analysis, it is obtained the quantitative relation of chemical composition and mechanical strength.
FBG Strain Sensors for Creak Measurement Due to Hydration Heat in Massive Concrete
Authors: Lee Seung Jae , Lee Geum Suk , Shon Su Deok , Moon Dae Joong
Published: May 2013

A massive concrete structure has a lot of micro-cracks due to the hydration heat. In general, conventional electric sensors have a certain limit in measuring cracks because of the noise. The durability is also badly influenced by corrosion. Recently, optical fiber sensors have demonstrated their superiority over conventional sensors and are able to solve these problems. Thus, in this work, embedded Fiber Bragg Grating (FBG) sensors for measurement of cracks in massive concrete due to hydration heat are developed and investigated. The developed sensor has the potential to perform strain measurement under harsh conditions in the presence of electrical noise and electromagnetic interference. Particularly, these FBG strain sensors are easily installed and found to be durable for massive concrete structures such as dams, bridges, nuclear structures, etc.
Experimental Study on the Stabilization Effects of Dredged Sludge by Fly Ash or Phosphogypsum
Authors: Yu Zhi Hua , Gui Yue , Zhang Qing , Kong Xiang Yun
Published: May 2013

It is very essential to explore a more efficient and a lower-cost stabilizer based the traditional stabilizer, lime. Through the laboratory test, this article made a comparison on the stabilization effects from the water ratio limit and unconfined compressive strength of the stabilized sludge, which was processed by using two common industrial wastes as stabilizers, fly ash and phosphogypsum, with the lime. The laboratory experiment results indicate that liquid limit and plastic limit of phosphogypsum compound stabilizers have a significant increase compared with the single lime added solidified sludge, but little change in the plasticity index over a curing age of 7 days or 28 days; while that of by adding fly ash has almost no change in liquid limit and plastic limit compared with the single lime added solidified sludge. Meanwhile the solidified sludge by adding the previous two stabilizers have an increase in unconfined compressive strength compared with the single lime added solidified sludge. Comprehensively compared above, the waste phosphogypsum as the extra additive stabilizer of the lime makes the optimal effect.
Model Test on Incremental Launching Construction Method for JIUBAO Bridge in Hangzhou
Authors: Li Bing Jie
Published: May 2013

The incremental launching construction method of super large-span arch-girder combination bridges is a new way in construction for late-model bridges. In order to study the dangerous conditions during the construction of the real bridge, the similarity model of a large-span arch-girder combination bridge is introduced. This article discussed structure responses under one，two，three times dead-load additional weight and the wind load separately. The test result demonstrates that the test method could simulate the dangerous conditions during the real construction and check the stress effectively which can provide technical support for the construction of similar bridges.
High Performance of Fumed Silica Insulation Board for Green Building
Authors: Ryu Jae Seol , Oh Kwang Suk , Lee Byung Won
Published: May 2013

The linear shrinkage and flexural strength of fumed silica insulation board were investigated for high performance. Different opacifiers and mass ratios have been tested in mixtures with pyropyllite, ZrSiO4, SiC and TiO2. Depending on the refractive index of opacifier, linear shrinkage was different. The higher refractive index of opacifier lead to the lower linear shrinkage of board. Additionally, the influence of the heat treatment was studied. The surface of board was hardened by heat, so flexural strength was increased as increasing the temperature of heat treatment. The thermal conductivity of fumed silica insulation board was lower than 0.022 W/mK.
Tectonic Research of Sustainable Building Materials Based on Regional Perspective - Taking Wuyishan City for Example
Authors: Chen Xiao Hui , Ma Li , Guo Qiu Hua
Published: May 2013

Currently, in pursuit of sustainable construction techniques and materials properties, the construction design of Wuyishan neglects the problem of its local materials and tectonic of material.Through sampling and analyzing, the sustainable building material selection principles have been given in this paper. Moreover, we also consider the geographical characteristics and natural ecological elements of Wuyishan. Meanwhile, some sustainable building materials with local characteristics of Wuyishan are selected. New tectonic methods for local construction building materials are explored.
The Study on Preparing the Plan for Analyzing the Actual Condition and Improving the Environment of Decrepit Research Buildings
Authors: Park Ji Yeon , Chae Chang U
Published: May 2013

Government research institution, which is under Ministry of Education, Science and Technology (MEST), its buildings and facilities' extent of decrepit is different depending on the year of foundation. However, most of buildings that built on for more than 15 years have become superannuated generally. Environment improvement project is absolutely necessary to complement and improve safety of buildings in respect of the buildings managed by the research institutions through comprehensive and multilateral performance diagnoses. It allows research productivity to be improved, and enhance of national economic power is highly expected by performance improvement of related research field.
Research on the Mining Wasteland Landscape Transformation
Authors: Li Tong , Tao Lin
Published: May 2013

Base on the 3R principles, the methods of the mine revegetation and landscape regeneration are found. They include the handling of abandoned mining facilities, the processing of the surface traces of the industrial production, the processing of pollutants, the transformation and reuse of abandoned mine pits, the plants landscape design, and the site characteristics of the landscape.
New Developing Direction of Domestic Villas in the Real Estate Market
Authors: Chai Wan Lin , Gao Yu Bo
Published: May 2013

In recent years, consumption demand and national policy are irreconcilable in China villa market. This paper comprehensively analyzed the developing direction of villas in the circumstances of the changeable domestic real estate market, with the purpose of offering the theoretical foundation to the future planning and design. By way of illustration and inference, the results indicate that villa industry should conform to the policy, meet contemporary consumers' living and spending habits, and accord with science and technology progress request.
Cooperation Environment Planning Strategy Research: Relative Case of Hokkaido in Japan and Guangdong in China
Authors: Zhu Hui Bin
Published: May 2013

Environment planning is highly related with city building that influences low-carbon city and green architecture design. Hokkaido in Japan and Guangdong in China are two regions that reflect different ways of cooperation environment planning strategy due to regional characters. Hokkaido in Japan adopts compact and definite transport planning strategy to balance city and rural development. Guangdong in China plans greenway as important linear element to uniform the city and rural appearance. Through relative cases we could analyze two kinds of cooperation environment planning strategy as references for other regions on account of specific characters.
Building a New Village Prepared Regulatory Approaches and Methods under the Background of Suburban Towns - A Case Study in Renhe, Dazhu County of Sichuan
Authors: Shi Bin , Nie Kang Cai
Published: May 2013

Under the background of the new village rapid planning and construction, the author tries to explore regulatory detailed planning ideas and methods on district from the structure of land use, spatial layout, road system, land development control. It aims at solving township in regulatory plan coordination control and providing reference for small towns and suburbs of regulatory detailed planning village planning and construction.
Discussion of China's City Planning Based on the Concept of Low-Carbon
Authors: Li Hong Yan
Published: May 2013

It becomes a research hotspot that how to realize low carbon in the city planning, and it gets more and more attention.In this paper, on the basis of current research achievements, low carbon city planning suitable to our country is discussed. Based on the idea of low carbon, design goals, contents, and methods of China's low carbon city planning are studied, which can be a reference for designers.
Research on Architectural Pattern of Residential Quarter Based on Atmospheric Pollutant Diffusion of Point Source
Authors: Yuan Yan Hua , Xu Jian Gang , Qi Yi , Chen Jun Ting
Published: May 2013

In the process of rapid urbanization, many pollution problems arise in developing cities. In particular, industrial point source air pollution is one of the main causes that detract from urban development and destroy ecological harmony. Gas pollution directly affects people's physical health when a source of industrial emissions is close to residential areas. In the planning and design of sustainable architecture, it becomes increasingly important to avoid industrial atmospheric diffusion pollution in the broadest sense through studying the layout of urban residential architecture group. This paper establishes the database of atmospheric pollution diffusion based on the ArcGIS platform. Through simulating the spatial distribution state of the atmospheric point source pollution concentration in Nanjing Chemical Industrial Park, the spatial information of urban atmospheric environmental quality can be provided for the layout and planning of the neighboring residential quarter. Combining with CFD wind field simulation of different architectural layouts, this paper studies the adaptive layout of residential architecture on surrounding environment. The results show that the pollutants’ concentration in summer is slightly lower than in winter; the pollutant concentration of determinantal layout is lower than the oblique column type and alternate layout in Shanpan Community. It explores the relationships among urban residential architecture, people and natural environment, and the results are very important in conducting the pattern planning and design of urban architecture, improvement of living environmental quality and energy conservation and environmental protection.
Research on Energy Saving Technology during the Reconstruction Design of Exterior Public Space - Chaogewenduer Gacha as the Model
Authors: Zhang Min , Kong Jing , Wang Juan , Ma Ming
Published: May 2013

During the reconstruction design of exterior public space in Chaogewenduer Gacha, this study tried to do some applications of energy saving technolog, such as the space scales reconstitution, use of water saving measures and methane tanks, then put forward suggestions for the next building energy conservation design, such as use of passive solar houses and cow-dungs fuel, reuse of the yurts and so on. All of these proposed the sustainable living patterns for ecological immigrant settlements.
Strategy for the Incorporate Design of SWH System with Small High Residential Building in Northern Part of Guangxi Zhuang Autonomous Region
Authors: Chen Ji Ming , Zhu Qi Sheng , Wang Li
Published: May 2013

The application of solar water heating system is getting popular in recent years. However, in many of the cases, the concept of incorporate design has not been put into consideration, which leads to unreasonable combination of the building and the SWH system. This paper focuses on the incorporate design of SWH system in small high residential building in northern part of Guangxi Zhuang Autonomous Region, P.R.China, aiming to put forward proper method and suggestion of it. The study is elaborated with a project to be built in the city of Guilin. With the help of the project, the setting of solar heat collection parameter, the choice of solar heat collector, the design of heat collective system and the construction of SWH system will be discussed. The effect and evaluation of the incorporate design between building and the SYH system will also be mentioned. The paper also expects to be of help to the design and construction of SWH system in other regions in China.
Conceptual Framework for Green Affordable Home in Malaysia
Authors: Zulkepli Masitah Binti , Bin Sipan Ibrahim , Jibril Jibril Danazimi
Published: May 2013

In recent years, interests and activities related to green building has increased. As stakeholders such as builders, architects, and developers have moved towards implementing green building criteria and sub criteria of energy efficiency and the greater usage of reuse and recycled materials in developing homes. The benefits of this transition also influenced the development of affordable homes. In Malaysia, green building for new residential construction consists of six criteria. However the green building criteria are not focusing on affordable home as in Green Communities in US, Eco Homes in UK and Ecocents Living in Australia. Indeed, they have their own green criteria and sub criteria as a means and guidelines for green affordable home development. This paper aims to perceive the criteria and sub criteria of green building which correspond to the types of affordable home in respect to local condition within Malaysia. This research will utilize the Delphi Hierarchy Process (DHP) methodology which integrates the delphi method with the analytic hierarchy process. It assists the expert panels to systematically identify the green affordable home criteria and sub criteria. The findings proposed in this research will be DHP decision model for green affordable home in Malaysia as a tool for decision making for developers in green affordable home development. It is hoped that this study will help to cater the issues of affordable homes as well as environmental with implementation of green building criteria and sub criteria into affordable home in Malaysia.
The Management Objectives of Green Construction and Difficulties on its Dissemination
Authors: Zhou Chao Xun , Xu Xiao Feng , Yao Feng
Published: May 2013

Green construction originated in the 1980s, and attracted the attention of the construction industry with its social and environmental benefits. The implementation of green construction has changed the traditional project management objectives. Compared to the traditional objectives which are simply concerned with economic benefits, those of green construction are concerned about social and environmental benefits and pursue long-term benefits and contribution to society and environment. As a new trend of development, green construction has difficulties with its dissemination. The survey taken by this article indicates that the main difficulties in dissemination of green construction in China are: high cost, lack of the government’s support or incentive policies, unfamiliarity with green technologies, lack of codes and regulations, and lack of awareness. Finally several suggestions are given to overcome the difficulties.
Characterization of Passive Film Formed on X80 Pipeline Steel in Sodium Bicarbonate Solution
Authors: Liang Ping , Shi Yan Hua , Zhang Yun Xia , Hu Chuan Shun
Published: May 2013

The passive films formed on X80 and X70 pipeline steel in 0.5 mol·L-1NaHCO3solution are investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS), and the corrosion resistance of both steel is compared. The results show that X80 steel has a much lower passive current density than X70 steel. EIS measurements indicate that the film formed on X80 steel is much more compact and uniform than that of X70 steel. Mott-Schottky analysis demonstrates that the passive film of X80 steel has a lower donor density and a thicker space charge layer than X70 steel. These factors lead to a better corrosion resistance for X80 steel than X70 steel.