Artículos de revistas: "Structural Member"

1

LEE, Kil-Sung, Yong-June YANG, Woo-Chae HWANG y In-Young YANG. "Crushing behavior of lightmass structural member". Transactions of Nonferrous Metals Society of China 19 (septiembre de 2009): s276—s279. http://dx.doi.org/10.1016/s1003-6326(10)60284-1.

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Gutkowski, W. y J. Latalski. "Structural optimization with member dimensional imperfections". Structural and Multidisciplinary Optimization 30, n.º 1 (15 de febrero de 2005): 1–10. http://dx.doi.org/10.1007/s00158-004-0383-2.

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3

Kim, Sang-Woo y Kil-Hee Kim. "Evaluation of Structural Behavior of Hysteretic Steel Dampers under Cyclic Loading". Applied Sciences 10, n.º 22 (21 de noviembre de 2020): 8264. http://dx.doi.org/10.3390/app10228264.

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This study proposes a relatively simple steel damper with high energy dissipation capacity. Three types of steel dampers were evaluated for structural performance. The first damper with U-shape had two vertical members and a semicircular connecting member for energy dissipation. The second damper with an angled U-shape replaced the connecting member with a horizontal steel member. The last damper with D-shape had a horizontal member added to the U-shaped damper. All the dampers were designed with steel plates on both sides that transmitted external shear force to the energy-dissipating members. To evaluate the structural performance of the dampers, an in-plane cyclic shear force was applied to the specimens. The D-shaped damper showed ductile behavior with excellent energy dissipation capacity after yielding without decreasing in strength during cyclic load. In other words, the D-shaped specimen showed excellent performance, with about 3.5 times the strength of the U-shaped specimen and about 3.8 times the energy dissipation capacity due to the additional horizontal member. Furthermore, the efficient energy dissipation of the proposed D-shaped steel damper was confirmed from the finite element (FE) analytical and experimental results.

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4

Grashuis, Jasper y Michael Lee Cook. "A structural equation model of cooperative member satisfaction and long-term commitment". International Food and Agribusiness Management Review 22, n.º 2 (13 de marzo de 2019): 247–63. http://dx.doi.org/10.22434/ifamr2018.0101.

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The organizational growth of farmer cooperatives is tied to increased heterogeneity in member attitudes and perceptions. To inform possible solutions, a better understanding of the complex interrelationships of member attitudes and perceptions is necessary. Using survey responses from 1,116 members of an organic marketing cooperative in the United States, this paper develops a structural equation model of six factors: organic lifestyle, mission support, participation, trust, satisfaction, and long-term commitment. The final model illustrates nine significant relationships, including satisfaction and long-term commitment. The result suggests the long-term survival or viability of farmer cooperatives is not only dependent on its financial performance but also the utility of its members. In terms of member attitudes and perceptions, trust and mission support may offer the best opportunities for farmer cooperatives to foster member satisfaction and thus address the negative consequences of heterogeneity.

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5

Bours, Anna‐Lena, Rebekka Winkler y Markus Knobloch. "Structural member stability behaviour of steel channels". ce/papers 4, n.º 2-4 (septiembre de 2021): 2078–85. http://dx.doi.org/10.1002/cepa.1524.

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6

Ju, Hyunjin, Sun-Jin Han, Il Choi, Seokdong Choi, Min-Kook Park y Kang Kim. "Experimental Study on an Optimized-Section Precast Slab with Structural Aesthetics". Applied Sciences 8, n.º 8 (26 de julio de 2018): 1234. http://dx.doi.org/10.3390/app8081234.

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The optimized-section precast slab with structural aesthetics (OPS) is a half precast concrete slab with multi-ribs that optimizes the cross-section by eliminating the unnecessary bottom flanges at mid-span and has good structural performance by utilizing prestressing strands and truss-type shear reinforcements. In addition, it is a member that is designed to highlight the structural aesthetics through the curved shape of a variable cross-section at the bottom of the flange which is created from a natural shape that is formed in the section optimization process. In this study, experimental research was carried out to examine the structural performance of the OPS, which includes flexure and shear tests on the precast concrete unit members for resisting construction loads, the composite members with cast-in-place concrete, and the continuous end section. The experiment results confirm that, in accordance with the current design code, the flexural performance of OPS is on the safe side regardless of the member type, whereas the shear performance of the precast concrete unit member differs slightly from that of the composite member due to the differences in the contributions of the shear reinforcement as the effective depth varies.

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7

Duan, Wen Feng y Chang Liu. "Analysis of RC Member’s Reliability Subjected to Eccentric Compression Based on Monte Carlo Simulation". Applied Mechanics and Materials 487 (enero de 2014): 465–69. http://dx.doi.org/10.4028/www.scientific.net/amm.487.465.

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Reinforced concrete eccentric compression member is one of the most common structural member. Eccentric compression members are divided into large eccentric compression members and small eccentric compression members. Uncertainty of calculation, geometric size and concrete strength were considered as random variables, the reliability of eccentric compression members were discussed by monte carlo simulation.

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8

Choi, Ju Ho, Yong Jun Yang, Cheon Seok Cha y In Young Yang. "Study on Impact Characteristics of CFRP Structural Member According to Stacking Conditions". Applied Mechanics and Materials 680 (octubre de 2014): 254–57. http://dx.doi.org/10.4028/www.scientific.net/amm.680.254.

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CFRP (Carbon Fiber Reinforced Plastics) is an anisotropic material which is the most widely adapted lightweight structural member. CFRP of the advanced composite materials as structure materials for vehicles has a widely application in lightweight structural materials of air planes, ships and automobiles because of high strength and stiffness. The CFRP Square members were made of 8ply unidirectional prepreg sheets stacked at different angles and interface numbers. Based on the collapse characteristics of CFRP member, the collapse characteristics and energy absorption capability were analyzed. The impact collapse tests were carried out for each section member. The purpose is to examine experimentally absorption behavior and strength evaluation depending on changes in the stacking configuration when the CFRP Square member s with different stacking configuration is exposed to separate impact velocity.

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9

GEORGE, SUNNY K. y K. SHANKAR. "VIBRATIONAL ENERGIES OF MEMBERS IN STRUCTURAL NETWORKS FITTED WITH TUNED VIBRATION ABSORBERS". International Journal of Structural Stability and Dynamics 06, n.º 02 (junio de 2006): 269–84. http://dx.doi.org/10.1142/s0219455406001952.

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The distribution of vibrational energy in members of a complex structure with tuned absorbers attached at the joints and subjected to dynamic loading is studied. The concept of power flows through the structure is used to determine the time-averaged energy levels of each member in the structure. The power flows are calculated using the time-averaged product of force and velocity at the input and coupling points (joints) of a general structure made of axially vibrating rods. The receptance approach is used to calculate the coupling forces and velocities in the structure. By balancing the input power against the dissipated powers, the time-averaged energy levels in members are determined. The main criteria studied here is the reduction in the frequency-averaged vibrational energy level of a member when an absorber is attached, expressed as a percentage compared to the case where there are no absorbers. The concept is first illustrated with a simple model of 2 axially vibrating rods with an absorber attached to the joint. Next, a more complex structure comprising 8 rods with arbitrary orientations and several absorbers attached to junctions is studied. The effect of activating absorbers at various locations on reducing the energy levels of certain members is examined. It is possible to estimate the usefulness of the absorber with respect to any member by determining the percentage reduction of energy level for that member.

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10

Agrivinie Rainy Firohmatillah y Adri Arisena. "Potensi Penyerapan Tenaga Kerja di Koperasi Jawa Barat Tahun 2020 Menggunakan Structural Equation Model". Coopetition : Jurnal Ilmiah Manajemen 12, n.º 2 (11 de junio de 2021): 131–42. http://dx.doi.org/10.32670/coopetition.v12i2.438.

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Labor absorption in the cooperative sector in West Java is still relatively low at 10,434 people or 0.05 percent. Based on this fact, the absorption of labor in the cooperative sector can still be increased in line with the program of the Ministry of Cooperatives and MSMEs in implementing total cooperative reform through three strategic measures, namely Reorientation, Rehabilitation and Development. Therefore, it is expected that the absorption of labor in the cooperative sector of West Java is increasing. To find out and see this, this research was done. The categories of respondents in this study are divided into two groups, namely the group of member respondents and the non-member respondent group. The analysis used to see the potential used descriptive analysis, while the Structural Equation Model (SEM) was used to see how much work stress, job satisfaction affect turnover intention for non-member groups of respondents. For the respondent group SEM members were used to see how much work stress, job satisfaction, and turnover intention affect member participation and cooperative development. The results showed that for the non-member respondent group both variables had a significant influence on turnover intention, while for the group of respondents members pointed out that the three variables had a significant direct influence on member participation and cooperative development.

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11

Lanteigne, Eric, Justin McLeod, Mayank Vadsola y Shilong Liu. "On the design of structural wing members for an unmanned weight-shift aircraft". Journal of Unmanned Vehicle Systems 8, n.º 3 (1 de septiembre de 2020): 161–71. http://dx.doi.org/10.1139/juvs-2019-0012.

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This paper describes a parametric study on the design of the structural wing members of a weight-shift aircraft for the conversion from piloted to unmanned cargo delivery operations. Ultralight weight-shift aircraft wings are designed for both pilot control and structural stability. These wings have evolved over decades without much formal engineering, and there is little scientific literature describing their design. Since modifications to the structural members of the wing are required to replace the pilot with an enclosed cargo bay, a parametric study on the wing design was conducted. The loads on each member of the wing were modelled, and nonlinear buckling simulations were performed to determine the minimum structural member tube sizes.

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12

Dapkus, Rimantas y Dalia Streimikiene. "Impact of Use of European Union Structural Funds for Sustainable Development in Member States". International Journal of Trade, Economics and Finance 7, n.º 2 (abril de 2016): 25–30. http://dx.doi.org/10.18178/ijtef.2016.7.2.494.

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13

Qi, Lin, Zhao Wei Huang, Xue Ying Hu, Xin Huang, Tao Liu, Hao Liang Cai y Xu Dong Zhu. "Refined Member Calculating Model for Dynamic Damage Process Simulation of Single Layer Latticed Shell". Applied Mechanics and Materials 353-356 (agosto de 2013): 3391–98. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.3391.

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Based on mechanical characteristics of the single layer latticed shell member, two buckling types of structural compression members are summarized. The pre-buckling and post-buckling mechanical behaviors of the member are simulated by different calculating model, and the member calculating model are founded by which the likely buckle-straighten processes of the member and the form-disappear processes of the plastic hinge can be simulated. Numerical computing results indicate that based on the member calculating model presented in this paper, the changes of member mechanical behaviors and the consequent complex changes of structural bearing capacity in the seismic dynamic responses process of single layer latticed shell can be calculate accurately, and the refined simulation of the full-range dynamic response process for single layer latticed shell subject to dynamic excitation are realized.

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14

Lee, Suchul, Yong Seog Kim y Euiho Suh. "Structural health assessment of communities of practice (CoPs)". Journal of Knowledge Management 18, n.º 6 (7 de octubre de 2014): 1198–216. http://dx.doi.org/10.1108/jkm-11-2013-0454.

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Purpose – This paper aims to provide organizational knowledge management teams with a new metric, the bottleneck impact score (BIS), a valuable tool for evaluating the structural health of communities of practice (CoPs), by detecting the seriousness and pervasiveness of the bottlenecks occurring in knowledge-sharing activities among CoP members. Design/methodology/approach – This paper uses the social network analysis method to analyze the activities of organizational members in CoPs and classify organizational members into four types based on their degree of involvement in knowledge creation and consumption. CoPs are also categorized into four types based on the proportion of member types they contain to identify the characteristics of CoP member types and of CoP types. Findings – Data analysis of the knowledge-sharing activities of 4,414 members from 59 CoPs within one of the largest steel manufacturing companies finds that few CoPs are active in both knowledge creating and consuming and that most CoPs suffer from the insufficient participation of their most experienced employees and experts and hence are vulnerable to master–apprentice and knowledge drain risks. Originality/value – The proposed BIS metric successfully quantifies the seriousness and pervasiveness of such structural risks and thus can help management teams take preventive action to reduce the identified structural risks.

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15

Peck, Brian D. y Eric M. Lui. "Microcomputer Structural Member and Frame Design by LRFD". Journal of Computing in Civil Engineering 5, n.º 2 (abril de 1991): 141–58. http://dx.doi.org/10.1061/(asce)0887-3801(1991)5:2(141).

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16

Šmak, M. y B. Straka. "Geometrical and Structural Imperfections of Steel Member Systems". Procedia Engineering 40 (2012): 434–39. http://dx.doi.org/10.1016/j.proeng.2012.07.121.

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17

Yeh, Min-Chyuan y Yu-Li Lin. "Finger joint performance of structural laminated bamboo member". Journal of Wood Science 58, n.º 2 (28 de diciembre de 2011): 120–27. http://dx.doi.org/10.1007/s10086-011-1233-7.

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18

Oh, WonKyung, MinSoo Kim, KeonKang Son y KyungSik Sin. "The effects of leader's perception of interactional justice on member's affective organizational commitment". Korean Journal of Industrial and Organizational Psychology 26, n.º 2 (31 de mayo de 2013): 297–315. http://dx.doi.org/10.24230/kjiop.v26i2.297-315.

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The previous justice literatures have studied that member's justice perception influenced member’s attitude and behavior. Since the study of Tepper & Taylor(2003), the recent literature emphasize the necessity of considering trickle-down effect that focus on justice perception flows from leader to member and eventuates influence employee attitude. Therefore, We hypothesized that member' interactional justice perception will be influenced by leader' interactional justice perception in organization. To test multilevel analysis, we collected the survey data from 240 leader and 5626 members and analyzed Multilevel Structural Equation Modeling using Mplus 5. In result, We found that member’ interactional justice increases affective organizational commitment and mediate the relationship between leader' interactional justice and affective organizational commitment.

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19

Chaudhary, Ranjit Kumar, Tathagata Roy y Vasant Matsagar. "Member and structural fragility of reinforced concrete structure under fire". Journal of Structural Fire Engineering 11, n.º 4 (22 de mayo de 2020): 409–35. http://dx.doi.org/10.1108/jsfe-02-2019-0015.

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Purpose Despite recognizing the significance of risk-based frameworks in fire safety engineering, the usual approach in structural fire design is largely member/component level, wherein effect of uncertainties influencing the fire resistance of structures are not explicitly considered. In this context, a probabilistic framework is presented to investigate the vulnerability of a reinforced concrete (RC) members and structure under fire loading scenario. Design/methodology/approach The RC structures exposed to fire are modeled in a finite element (FE) platform incorporating material and geometric nonlinearity, in which the transient thermo-mechanical analysis is carried out by suitably incorporating the temperature variation of thermal and mechanical properties of both concrete and steel rebar. The stochasticity in the system is considered in structural resistance, thermal and fire model parameters, and the subsequent fragility curves are developed considering threshold limit state of deflection. Findings The fire resistance of RC structure is reported to be significantly lower in comparison to the RC members, thereby illustrating the current prescriptive design approaches based on studies of structural member behavior to be crucial from a safety and reliability point of view. Practical implications The framework developed for the vulnerability assessment of RC structures under fire hazard through FE analysis can be effectively used to estimate the structural fire resistance for other similar structure to enhance safety and reliability of structures under such extreme threats. Originality/value The paper proposes a novel methodology for vulnerability assessment of three-dimensional RC structures under fire hazard through FE analysis and provides comparison of the structural fragility with fragility developed for structural members. Moreover, the research emphasizes to assume 3D behavior of the structure rather than the approximate 2D behavior.

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20

Choi, Jin Woo, Seong Sik Lee, Hyung Joong Joo, Chang Won Kim, Dong Min Ok y Soon Jong Yoon. "Design Consideration of the Nonuniform Stress Distribution of Pultruded Structural Member under Compression". Advanced Materials Research 250-253 (mayo de 2011): 3564–70. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.3564.

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As a new construction material, fiber reinforced polymeric plastic structural shapes are readily available. Therefore, new construction and existing structure rehabilitation using FRP materials are ever increasing trend because of FRP material’s chemical and mechanical properties compared with those of conventional construction materials such as steel and concrete. Among the structural composites, pultruded fiber reinforced polymeric plastic structural members are the most popular for the civil engineering applications because of the cost effectiveness. However, they are made of fiber reinforced polymer resin system, they have relatively low modulus of elasticity and also cross-sections of structural shapes are composed of thin plate components such as flange and web. Therefore, structural stability is an important issue in the design of pultruded structural members. For the design of pultruded structural member under compression, buckling and post-buckling strengths of plate components may be taken into account. In the structural steel design following AISC/LRFD, in addition to the buckling strength, the nonuniform stress distribution in the section is incorporated with a form factor. In this paper, the form factor for the design of pultruded structural member under compression is investigated by experiment. Based on the experimental results, the form factor for the design of pultruded structural shapes have been suggested.

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21

Rasooli, Amanullah y Hideki Idota. "Assessment of Redundant Steel Structural Systems Considering Effects of Member Strength Variability on the System". Applied Mechanics and Materials 267 (diciembre de 2012): 33–41. http://dx.doi.org/10.4028/www.scientific.net/amm.267.33.

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In the present study, the failure of basic redundant steel structural systems is investigated. By considering that each member of the system has brittle, semi-brittle, or perfectly plastic properties, the statistical behavior of perfectly brittle systems, semi-brittle systems, perfectly plastic and combination systems are evaluated, and the effects of the coefficient of variation (CoV) of members on the systems are investigated. Uncorrelated strengths with the same mean are considered for the system elements. By using the Monte Carlo simulation (MCS) method, maximum strength, yield strength and residual strength of the redundant steel structural systems are evaluated. The CoV of member strength is an essential parameter for statistical assessment of steel structural systems. In this study, the strength is defined random variable a selected normal distribution represents the random variable, for the member strength. The deformation capacity of the member is strongly depends to the characteristics of member strength, but the post failure factor has deterministic values, only for the combination system. The post failure factor is a random variable that represents the uncertainty, uniform distribution is selected to represents random variable, in combination system post failure factor.

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22

Hou, Jilin, Łukasz Jankowski y Jinping Ou. "Structural Health Monitoring Based on Combined Structural Global and Local Frequencies". Mathematical Problems in Engineering 2014 (2014): 1–13. http://dx.doi.org/10.1155/2014/405784.

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This paper presents a parameter estimation method for Structural Health Monitoring based on the combined measured structural global frequencies and structural local frequencies. First, the global test is experimented to obtain the low order modes which can reflect the global information of the structure. Secondly, the mass is added on the member of structure to increase the local dynamic characteristic and to make the member have local primary frequency, which belongs to structural local frequency and is sensitive to local parameters. Then the parameters of the structure can be optimized accurately using the combined structural global frequencies and structural local frequencies. The effectiveness and accuracy of the proposed method are verified by the experiment of a space truss.

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23

Silintowe, Yunita y Yusepaldo Pasharibu. "Service Quality In Increasing Participation Of Co-Operative Members". Eksis: Jurnal Riset Ekonomi dan Bisnis 15, n.º 2 (9 de febrero de 2021): 53–66. http://dx.doi.org/10.26533/eksis.v15i2.749.

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Member participation is a significant element in spurring activity and for maintaining a unifying bond in a co-operative. This study explores service quality's effect on member participation in the primary employee co-operative (primkopkar) Manunggal. This type of research is explanatory with a quantitative approach. The population in this study were members of the Manunggal co-operative, and the sample in this study was 98 people. The data analysis tool used Structural Equation Modeling (SEM), which was processed with the Linear Structural Relationship (LISREL) statistical program. The results showed that service quality had a significant effect on increasing the participation of co-operative members.

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24

Lin, Yongjun, Xianzhao Zhang, Wenqiang Xu y Meng Zhou. "Importance Assessment of Structural Members Based on Elastic-Plastic Strain Energy". Advances in Materials Science and Engineering 2019 (9 de junio de 2019): 1–17. http://dx.doi.org/10.1155/2019/8019675.

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Based on the elastic analysis, the existing methods of the importance assessment of structural members can only reflect the structural elastic behavior. To understand the plasticity and stiffness degradation of the structure, the present study proposes a member importance assessment method which takes the structural elastic-plastic strain energy or the generalized elastic-plastic strain energy as the performance parameter. First, the existing methods of member importance assessment are explained. Second, by pushover analysis, structural elastic-plastic strain energy is calculated in accordance with the story force-displacement curve, and structural generalized elastic-plastic strain energy is calculated according to the base shear-top displacement curve. Third, the importance of structural members is measured with its effect on the elastic-plastic strain energy or generalized elastic-plastic strain energy of the structure. Given the difference between structural performance parameters, the coefficient of member importance is defined. Finally, the importance of the masonry structure wall is quantitatively assessed using the elastic-plastic strain energy method, the generalized elastic-plastic strain energy method, the generalized stiffness method, and the ultimate bearing capacity method. Besides, the effect of the seismic fortification intensity and the number of structural stories on the wall importance assessment results is analyzed. According to the results, the elastic-plastic strain energy method and the generalized elastic-plastic strain energy method can both reveal the mechanical performance of elastic-plastic state of the structure under severe earthquake. Furthermore, the greater the seismic fortification intensity is, the more important the wall will be on the bottom floor, the more the total number of structural stories will be, and the more important the opening wall and its adjacent wall will be.

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Lee, Young Geun, Seung Sik Lee, Jeong Hun Nam, Hong Taek Kim y Soon Jong Yoon. "Strength Evaluation of Bolted Connection in PFRP Structural Member". Materials Science Forum 654-656 (junio de 2010): 2640–43. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.2640.

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Fiber reinforced plastic structural shapes are readily available in civil engineering applications. Especially, pultruded fiber reinforced plastic is an attractive construction material for structural applications because it can be produced in mass production, and it has good mechanical and chemical properties compared with existing conventional structural materials. To be used in the construction field, connection of the pultruded structural member is unavoidable. Bolted connections may be the most suitable option for civil engineering applications compared with bonded connection. However, bolted connection has disadvantages such as reduction of strength due to bolt holes in the connection. Experimental and analytical studies on the bolted connection of PFRP plated member have been carried out. Four different types of connection distinguished by number and arrangement of bolt holes are investigated. Geometrical test parameters are edge distance, width, and longitudinal and transverse spacing. The effects of the parameters are evaluated and quantified based on the observations, such as failure load and failure mode, obtained from the experiment. In addition to the experimental investigation, analytical study is also conducted to predict the failure load of the member with bolted connection.

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26

Huston, D. R., P. L. Fuhr, J. G. Beliveau y W. B. Spillman. "Structural member vibration measurements using a fiber optic sensor". Journal of Sound and Vibration 149, n.º 2 (septiembre de 1991): 348–53. http://dx.doi.org/10.1016/0022-460x(91)90645-z.

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27

Broukalová, I. y K. Šeps. "Probabilistic Analysis of Structural Member from Recycled Aggregate Concrete". IOP Conference Series: Materials Science and Engineering 246 (septiembre de 2017): 012035. http://dx.doi.org/10.1088/1757-899x/246/1/012035.

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28

Di Lorenzo, Gianmaria, Antonio Formisano y Raffaele Landolfo. "On the Origin of I Beams and Quick Analysis on the Structural Efficiency of Hot-rolled Steel Members". Open Civil Engineering Journal 11, n.º 1 (30 de junio de 2017): 332–44. http://dx.doi.org/10.2174/1874149501711010332.

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Background:In the current paper the origin of steelIbeams has been analysed from historical-technological and structural points of view.Method:First, the way leading to discover the most famous structural member of the modern Steel Engineering has been reconstructed. Later on, parameters of structural efficiency, allowing for a quick numerical evaluation of the effects produced by the rolling process on the semi-finished casting products, have been defined as a function of the difference in terms of weight between the solid billet and the member final shape on the basis of the more or less raw material centrifugation. By using the above mentioned structural efficiency parameters, the design criteria used for development of the European list of sections, with particular reference to IPE and HE profiles, have been comprehended.Result and Conclusion:Finally, the proposed method, if applied to members having the same area, allows defining, without considering local buckling phenomena, the best profile for each performance category of steel members.

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Dusseau, Ralph A., Snehamay Khasnabis y Terence A. Smith. "Structural Responses of Transit Buses: Impact of Wheelchair Loads". Transportation Research Record: Journal of the Transportation Research Board 1521, n.º 1 (enero de 1996): 137–46. http://dx.doi.org/10.1177/0361198196152100118.

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The structural responses of typical transit buses with and without wheelchair loads and the changes in these responses from one bus design to the next were investigated. To this end, finite-element computer models, with and without wheelchairs, wheelchair restraints, and wheelchair lifts, were developed for two 7.6-m transit buses designed in 1989 and 1992. These models were each analyzed under bus deceleration with seats attached to the bus floor only, and with seats attached to the bus sidewall and floor. With respect to the structural responses of these typical transit buses to bus deceleration it was concluded that (a) maximum member stresses in models with wheelchair loads versus models without wheelchair loads tended to increase in the 1989 bus models and decrease in the 1992 bus models and (b) small to moderate changes in the number, size, and location of structural members from one bus design to the next can have a substantial impact on the maximum member stresses.

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30

Lee, Dong-Jun. "Structural relationship among Leader-Member Exchange, Team-Member Exchange, Customer-Member Exchange, Empowerment, Job Satisfaction and Customer Orientation in Sports Center". Korean Journal of Sports Science 30, n.º 2 (30 de abril de 2021): 153–66. http://dx.doi.org/10.35159/kjss.2021.4.30.2.153.

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31

Ruggieri, Claudio y Jose´ Alfredo Ferrari,. "Structural Behavior of Dented Tubular Members Under Lateral Loads". Journal of Offshore Mechanics and Arctic Engineering 126, n.º 2 (1 de mayo de 2004): 191–97. http://dx.doi.org/10.1115/1.1712979.

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Structural behavior of tubular members with dent damaged caused by local indentation remains a key issue for the safety and failure assessment of critical structures, including marine facilities, oil and gas pipelines. This failure mode most often arises from very large localized plastic deformations caused mainly by excessive or accidental loads such as, for example, during the collision of adjacent risers in deepwater floating production systems (FPS). The complex interaction between the local deformation in the dented region and global bending of the tubular member may severely reduce the plastic collapse load which strongly affects its load-deflection behavior. This study presents an experimental and numerical investigation of the structural behavior of a dented tubular member under lateral load which is applicable to marine risers. Experimental load-deflection curves measured using a 412″O.D. (114 mm) API N80 pipe (580 MPa yield stress) with varying length characterize the plastic response during local indentation and global bending. 3D finite element models are employed to generate numerical solutions describing the large deformation, non-linear behavior for the tested pipes. The experimental results agree well with the numerical results. The analyses provide further insight into the structural response of tubular members and risers with dent damage effects.

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32

Chen, Bo, Jian Feng Wei y Jin Zheng. "Evaluation on Environmental Corrosion Damage of Steel Domes". Applied Mechanics and Materials 44-47 (diciembre de 2010): 163–67. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.163.

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The evaluation on environmental corrosion damage of steel domes is carried out in this study through an integration of knowledge in material science and structural analysis. The refined exponential model for estimating corrosion of steel materials is presented based on long-term experimental data available. The formula for relating structural natural frequency sensitivity to structural member thickness is then derived to assess the sensitivity of natural frequency to variation of member thickness due to corrosion. The nonlinear static analysis is conducted to evaluate effects of atmospheric corrosion on the stress of structural members and the safety of steel space structures. A real steel dome built in China is taken as the case study to examine the feasibility of the proposed approach and to assess the potential corrosion damage to the structure..

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33

Al-alak, Basheer A. M. "Impact of Marketing Actions on Relationship Quality in the Health and Fitness Sector in Jordan and Its Implications for Social Marketing: A Field/Analytical Study". Social Marketing Quarterly 16, n.º 2 (25 de mayo de 2010): 70–93. http://dx.doi.org/10.1080/15245001003746733.

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This field/analytical study examined the marketing actions (antecedents) and performance (consequences) of relationship quality in a health and fitness setting. To analyze data collected from a random sample of 542 members drawn from fitness centers in Amman, Jordan, the linear structural relationship model was used to identify structural characteristics of relationship management among fitness centers' employees, including physical fitness and health experts, administrative staff, and members. The empirical results of this study were fourfold. First, greater employees' relational and member orientation resulted in higher relationship quality. Second, better health and fitness providers' (employees') attributes resulted in higher relationship quality. Third, higher relationship quality resulted in better relationship continuity. Fourth, committed member relationships resulted in member satisfaction, loyalty, positive word of mouth, and promotion. These in turn contributed to the enhancement of fitness center image. Within the past 20 years, social marketing application to health and fitness problems has grown rapidly. A number of social marketing implications and recommendations are highlighted.

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34

Joo, Joo Hyung, Soon Jong Yoon, Ju Kyung Park y Sun Kyu Cho. "Local Buckling Coefficient of Thin-Walled Pultruded FRP Compression Members". Key Engineering Materials 334-335 (marzo de 2007): 377–80. http://dx.doi.org/10.4028/www.scientific.net/kem.334-335.377.

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Recently there has been an increased demand in the use of FRP materials as load-bearing structural elements for the civil engineering applications, since FRP composite materials offer superior properties to conventional structural materials used in civil engineering structures. Among various production techniques, the pultrusion process has enabled the production of structural profiles with large cross sections at relatively low cost. Pultruded structural members are generally manufactured in the form of thin-walled member composed of plate elements and material properties can often be assumed as orthotropic. Due to the relatively low geometrical stiffness, often combined with low elastic modulus, the design of pultruded profiles is governed by the deflection or buckling rather than the material strength. In this paper, the elastic local buckling coefficient of the pultruded structural member having L-, T- and box-shape under the uniform in-plane compression was investigated and approximate equation to find the local buckling strength was proposed by using the classical orthotropic plate theory and energy method. The suggested equation can be used in the development of the design criteria and local buckling analysis of pultruded structural members.

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35

Hanaor, Ariel y An-Fu Ong. "On Structural Redundancy in Space Trusses". International Journal of Space Structures 3, n.º 4 (diciembre de 1988): 237–41. http://dx.doi.org/10.1177/026635118800300405.

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Static redundancy does not ensure structural redundancy in cases where the collapse mechanism involves instability. Structural redundancy is defined here as the ability of the structure to sustain its design load with the loss of one or more critical elements. The parametric investigations on a square on square double-layer grid presented here, suggests that the loss of one critical member from this type of structure typically entails a loss of 20% to 30% of load carrying capacity. To allow for structural redundancy, as well as for loss of carrying capacity due to the effect of imperfections, it is recommended to reduce compression members' buckling (or allowable) stress by a corresponding value or, alternatively, to perform a suitable analysis.

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36

Lee, Erinna F. y W. Douglas Fairlie. "The Structural Biology of Bcl-xL". International Journal of Molecular Sciences 20, n.º 9 (7 de mayo de 2019): 2234. http://dx.doi.org/10.3390/ijms20092234.

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Interactions between the pro-survival and pro-apoptotic members of the Bcl-2 family of proteins dictate whether a cell lives or dies. Much of our knowledge of the molecular details of these interactions has come from biochemical and structural studies on the pro-survival protein Bcl-xL. The first high-resolution structure of any Bcl-2 family member was of Bcl-xL, which revealed the conserved topology amongst all family members. Subsequent structures of Bcl-xL complexes with pro-apoptotic ligands demonstrated the general features of all pro-survival:pro-apoptotic complexes. Structural studies involving Bcl-xL were also the basis for the discovery of the first small-molecule pro-survival protein inhibitors, leading ultimately to the development of a new class of drugs now successfully used for cancer treatment in the clinic. This article will review our current knowledge of the structural biology of Bcl-xL and how this has impacted our understanding of the molecular details of the intrinsic apoptotic pathway.

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37

Picard, André y Denis Beaulieu. "Experimental study of the buckling strength of compression members connected to coplanar tension members". Canadian Journal of Civil Engineering 16, n.º 3 (1 de junio de 1989): 249–57. http://dx.doi.org/10.1139/l89-050.

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In structural systems using cross braces, the compression members are restrained against out-of-plane buckling by the tension members. It was shown in a theoretical study that the transverse stiffness provided by a tension member depends on the tension force in the member and on the flexural stiffness against out-of-plane deformation of the tension member. Equations were derived to determine the effective length factor of the compression member, taking into account the transverse stiffness of the tension member.This paper presents the results of a small-scale experimental study, which shows that the proposed equations slightly underestimate the transverse stiffness and overestimate the effective length factor. These equations are therefore conservative, but they indicate that an effective length factor much smaller than 1.0 can be used. Key words: stability, elastic buckling, elastic supports, cross braces.

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38

Liu, Yuxin. "Hybrid-member stiffness matrix accounting for geometrical nonlinearity and member inelasticity in semi-rigid frameworks". Engineering Structures 31, n.º 12 (diciembre de 2009): 2880–95. http://dx.doi.org/10.1016/j.engstruct.2009.07.014.

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39

Nwosu, D. I. y VKR Kodur. "Behaviour of steel frames under fire conditions". Canadian Journal of Civil Engineering 26, n.º 2 (1 de abril de 1999): 156–67. http://dx.doi.org/10.1139/l98-056.

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A state-of-the-art review of the behaviour of steel frame structures in fire is presented. Results from different studies indicate that the behaviour of a complete structure is different from that of a single structural member under fire conditions from the point of view of fire resistance. Earlier studies also show that analysis and design of steel structures against fire based on their overall behaviour could lead to a reduction or the elimination of applied fire protection to certain structural members. The effects of continuity, restraint conditions, and load ratio on the fire resistance of frame structures are discussed. The beneficial aspects derived from considering overall structural rather than single-member behaviour in fire are illustrated through the analysis on two one-bay, one-storey, unprotected steel portal frames, a column, and a beam. Also comparison is made between the performance of a beam with different end restraints in fire. Results from the analyses indicate that the fire resistance of a member is increased when it is considered as part of a structure compared with when it is considered as a single member.Key words: steel, frames, fire resistance, buckling, loads, overall structural behaviour.

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40

Longhi, Sonia. "Meet Our Editorial Board Member". Protein & Peptide Letters 23, n.º 3 (15 de febrero de 2016): 199. http://dx.doi.org/10.2174/092986652303160215153937.

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41

Zhou, Guo-Ping. "Meet Our Editorial Board Member". Protein & Peptide Letters 23, n.º 4 (1 de marzo de 2016): 323. http://dx.doi.org/10.2174/092986652304160301150913.

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42

Gao, Yanfeng. "Meet Our Editorial Board Member". Protein & Peptide Letters 24, n.º 5 (10 de mayo de 2017): 379. http://dx.doi.org/10.2174/092986652405170510214154.

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43

Akhter, Y. "Meet Our Editorial Board Member". Protein & Peptide Letters 25, n.º 4 (7 de junio de 2018): 325. http://dx.doi.org/10.2174/092986652504180607102900.

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44

Cilli, Eduardo M. "Meet Our Editorial Board Member". Protein & Peptide Letters 25, n.º 6 (28 de agosto de 2018): 511. http://dx.doi.org/10.2174/092986652506180810153848.

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45

Permyakov, E. A. "Meet Our Editorial Board Member". Protein & Peptide Letters 25, n.º 7 (6 de septiembre de 2018): 609. http://dx.doi.org/10.2174/092986652507180813105537.

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46

Dasgupta, Swagata. "Meet Our Editorial Board Member". Protein & Peptide Letters 25, n.º 8 (9 de octubre de 2018): 711. http://dx.doi.org/10.2174/092986652508181009150916.

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47

Mollica, A. "Meet Our Editorial Board Member". Protein & Peptide Letters 25, n.º 9 (13 de noviembre de 2018): 805. http://dx.doi.org/10.2174/092986652509181113111727.

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48

Zhou, Guo-Ping. "Meet Our Editorial Board Member". Protein & Peptide Letters 25, n.º 10 (30 de noviembre de 2018): 885. http://dx.doi.org/10.2174/092986652510181130101648.

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49

Gao, Yanfeng. "Meet Our Editorial Board Member". Protein & Peptide Letters 25, n.º 12 (18 de enero de 2019): 1041. http://dx.doi.org/10.2174/092986652512190118152735.

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50

Khodarahmi, R. "Meet Our Editorial Board Member". Protein & Peptide Letters 26, n.º 1 (13 de febrero de 2019): 2. http://dx.doi.org/10.2174/092986652601190213101436.

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