Safe Zones for Shock-Protection of Fragile Components during Impact-Induced Clatter by Suresh Goyal, James M. Papadopoulos

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« Caroline » et la montagne. Ces albums populaires pour enfants qui construisent la montagne by Christophe Meunier

“…Probst’s picture books depict characters evolving in converted landscapes as they frequent inhabited territories. …”
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Energy efficiency optimization algorithm for heterogeneous NOMA network based on imperfect CSI by Yongjun XU, Hao XIE, Qianbin CHEN, Jinzhao LIN, Qilie LIU

“…In order to improve the suppression capability of parametric perturbation and energy efficiency (EE) of heterogeneous networks (HetNets),a robust resource allocation algorithm was proposed to maximize system EE for reducing cross-tier interference power in non-orthogonal multiple access (NOMA) based HetNets.Firstly,the resource optimization problem was formulated as a mixed integer and nonlinear programming one under the constraints of the interference power of macrocell users,maximum transmit power of small cell base station (BS),resource block assignment and the quality of service (QoS) requirement of each small cell user.Then,based on ellipsoid bounded channel uncertainty models,the original problem was converted into the equivalent convex optimization problem by using the convex relaxation method,Dinkelbach method and the successive convex approximation (SCA) method.The analytical solutions were obtained by using the Lagrangian dual approach.Simulation results verifiy that the proposed algorithm had better EE and robustness by comparing it with the existing algorithm under perfect channel state information.…”
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MBER power allocation for joint precoding and space-time coding GFDM by Jianhui CAI, Guangqiu LI, Yanxu DUAN

“…In order to improve the bit error rate (BER) and bandwidth utilization performance of generalized frequency division multiplexing (GFDM) system over frequency selective fading channels, based on the minimum bit error rate (MBER) criterion, a joint precoding and space-time coding (STC) GFDM system and its corresponding power allocation strategy were proposed.The optimization goal of the power allocation strategy for the precoding STC-GFDM system can be converted from MBER to minimizing its noise enhancement factor, and the analytical expressions of its power allocation, bit error rate (BER) and bandwidth utilization were derived.Numerical calculation and simulation results show that compared with the precoding STC-GFDM system, the BER performance of precoding STC-GFDM system based on MBER criterion can be improved by about 0.4 dB when BER is 10^-3, and the bandwidth utilization performance can be improved by about 0.24 bit/(s·Hz) when signal to noise ratiois 12 dB.…”
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Maximizing the Rate of IRS-Assisted Downlink NOMA Systems by Xinying Li, Haixia Wei, Haiyan Huang, Cuiran Li, Lijun Zhang

“…Given the fractional structure of multivariate coupling as presented in this study, the fractional problem first converts to a linear form; then, the semidefinite relaxation (SDR) algorithm is proposed to address nonconvex issues for a single-user scenario. …”
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Les mausolées de la fin de l’Antiquité au Moyen Âge central : entre gestion d’un héritage et genèse de nouveaux modèles by Thomas Creissen

“…Among the Christian mausoleums, those that were later converted into churches are the most famous. Their shapes and dimensions are varied. …”
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Design of a high-sensitivity polymer double-slot waveguide sensor for point-of-care biomedical applications by S. Prasanna Kumaar, A. Sivasubramanian

“…The waveguide was optimized by converting a normal slot waveguide into a double-slot waveguide with varying slot widths. …”
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Robust Estimation of the Unbalance of Rotor Systems Based on Sparsity Control of the Residual Model by Tingpeng Zang, Guangrui Wen, Zhifen Zhang

“…With the help of the sparsity of external disturbances, the unbalance identification is converted into a convex optimization problem and solved by a sparse signal reconstruction algorithm. …”
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Issues at the Rural-Urban Fringe: Land Use -- Agricultural Districts by Rodney L. Clouser

“…Many states use more than one technique in an attempt to prevent land from converting from agricultural to non-agricultural use. …”
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Biblioteka Uniwersytecka w Poznaniu i Biblioteka Poznańskiego Towarzystwa Przyjaciół Nauk w latach 1919-1953. Od współpracy do przyjaznego współistnienia by Małgorzata Głowacka - Helak

“…When the former Kaiser Wilhelm Bibliothek was converted into the University Library it could not initially manage the task as its collections almost did not include many sought-after Polish books. …”
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Sum-rate maximization in MIMO NOMA system with imperfect CSI by Yanjing SUN, Yang LIU, Jiasi ZHOU, Qi CAO, Song LI

“…In order to solve the problem of maximizing the sum rate under the constraints of transmission power limitation and users’ rates requirements,precoder and receiver were devised by combining multiple-input multiple-output (MIMO) and non-orthogonal multiple access (NOMA) based on imperfect channel state information (CSI).To take advantage of successive interference cancellation (SIC) techniques to eliminate interference from weak user’s signal,each data stream of the strong user needed to decode the corresponding weak user’s signal.Since the problem formed was non-convex,it was converted into the problem with the difference of two convex functions (D.C.) by using semi-positive definite programming and first-order Taylor expansion,and a penalty function was used to solve the constraint of the rank of the precoding covariance matrix.The simulation results show that compared with the orthogonal multiple access technology,the proposed D.C.algorithm can improve system sum rate.…”
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National Information Infrastructure and the realization of Singapore IT2000 initiative by Cheryl Marie Cordeiro, Suliman Al-Hawamdeh

“…In 1991, the Singapore government, together with the National Computer Board (NCB) currently known as the Infocomm Development Authority (IDA), launched the <I>IT 2000</i>, with the objective of converting Singapore into an intelligent island. With many NII projects in place and the various government initiative, this study focus on the role of Singapore Government in the development of the national information infrastructure and the realisation of IT2000 vision. …”
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Lektury zalecane Elżbiecie z Radziwiłłów Mieleckiej przez katolickich kaznodziejów w latach 1579–1581 by Anna Sitkowa

“…The recommended books were intended to influence her final decision to convert (e.g. Piotr Skarga’s “Żywoty świętych” [“Lives of the Saints”], 1579), and after her confession of Catholic faith in June 1580, to provide guidance for her new religious path (e.g. …”
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New Fractional Derivative Expression of the Shifted Third-Kind Chebyshev Polynomials: Application to a Type of Nonlinear Fractional Pantograph Differential Equations by Y. H. Youssri, W. M. Abd-Elhameed, H. M. Ahmed

“…The role of the tau method is to convert the pantograph differential equation with its governing initial/boundary conditions into a nonlinear system of algebraic equations that can be treated with the aid of Newton’s iterative scheme. …”
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Dust Acoustic Shock Waves in Strongly Coupled Dusty Plasmas with Superthermal Electrons and Ions by Hamid Reza Pakzad

“…It is simply shown how soliton profile is converted into shock structure when the coupling force increases. …”
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Catalytic Chemical Recycling of Post-Consumer Plastics: A Review by L. M. Affiku, S. O. Okopi, A. S. Akawu, C. N. Abah, K. O. Joseph

“…Catalytic chemical recycling seen as a promising approach by converting plastic waste into valuable products like fuels and monomers. …”
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Research and Test of X-wing Flapping-wing Mechanism Based on the Crank Slider Mechanism by Huang Xiansheng, Cai Yu, Li Qi, Liu Bin

“…The crank slider mechanism is adopted to convert the circular motion of the crank into the linear reciprocating motion of the straight shaft, and the straight shaft drives the wings on both sides through the rocker to realize the symmetric flapping of the wings. …”
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Use of Instagram as learning media in senior high school by Muhammad Nur Iman Hadiyana Setia, Monica Fajriana

“…The weights in each category will be summed and converted into qualitative data. The data will be drawn by counting how many categories of answers from all respondents. …”
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Land capitalization model for sustainable tourism based on PLS-SEM by Sukriah Erry

“…There are three patterns of land capitalization for tourism, where investors 1) invest in land and immediately convert it into a tourism business, then the prices increase sharply, 2) invest in land and then change the use into a tourism business accompanied by control of the surrounding and then the price increases, and 3) invest gradually with acquiring land until they create exclusive areas and increase the price. …”
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Reversible Fetal Renal Impairment following Angiotensin Receptor Blocking Treatment during Third Trimester of Pregnancy: Case Report and Review of the Literature by Tal Saar, Lorinne Levitt, Hagai Amsalem

“…Late pregnancy usage of angiotensin converting enzyme inhibitors (ACE-I) and angiotensin II receptor blockers (ARB) may cause severe oligohydramnios due to fetal renal impairment. …”
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