Opposite Forces Research Articles

Syria Train and Equip: Who Left the Interns in Charge?

ABSTRACT The U.S. Government’s decision to establish a Train and Equip (T&E) Program for Moderate Syrian Opposition (MSO) forces to fight the ISIS terrorist organization came to fruition in the third year of the Syrian Civil War. This article examines the Train and Equip Program, a small but important chapter in the overall post – Sadaam and post Arab Spring societal upheaval in the Middle East. The analysis employs a broad tool-kit that includes: three hypotheses, the multi-causal model for conflict analysis, theoretical grounding in both Groupthink and Lay-epistemics, and an interpretivist lens provided by critical hermeneutics. The aim is to use this discrete unconventional warfare campaign as a platform activity to examine how decision-making and actions at the executive levels of government influenced the overall outcome. The findings of this examination will show that the greatest outcome of the Syria Train and Equip Program may be to serve as a cautionary tale and a guide for policy makers – especially when considering Unconventional Warfare as a policy option.

Self-reflexivity and the Representation of The Indian Diasporic Community in Deepa Mehta’s Bollywood/Hollywood

This paper discusses Deepa Mehta’s lighthearted romantic comedy Bollywood/Hollywood as a representation of the Indian diasporic community settled in Canada. What makes this film especially interesting is that it focuses on how, for overseas Indians, Bollywood offers the possibility of accessing the home culture in a globalised world. Bollywood as an industry is synonymous with the genre of family melodrama, and when Mehta uses this term it represents, not just the Bombay Film Industry, but also the cultural iconicity of the genre, which in turn represents the film sensibility of the entire ‘mass’ of Indians located within the country and in the diaspora. At one level, the film is a lighthearted comic portrayal of the Indo-Canadian community in Toronto and its strong connection with “our magnificent Indian culture” (B/H) through the Hindi movies churned out by Bollywood. At a closer look at a number of scenes, light is cast on the way Deepa Mehta emphasizes the cultural divides through interesting narrative and visual constructions. The actual argument of the film emerges in a dialectical reading and recognition of the oppositional forces operating within and without the narrative world. What is particularly striking about this film is its self-reflexivity. It announces itself as a Bollywood melodrama and celebrates this identity. Bollywood is thus positioned as both a subject and an object of contemplation—a world of Cinema that is a part of our memory and a vehicle of history. The critique of the formula also comes from within the formulaic narrative itself. Deepa Mehta constantly uses the genre and also plays around with it in interesting ways

COVID-19: A Political Virus? VOX’s Populist Discourse in Times of Crisis

Spain has been one of the hardest hit countries by the COVID-19 pandemic, and this crisis presented a window of opportunity for VOX, as it has for other far right parties, to raise its visibility as opposition force. This paper investigates whether the discourse of VOX has evolved during the pandemic and affected the political dynamics in Spain. This article proposes a new multidimensional strategy to measure the degree of populism in political communications, via quantitative and qualitative content analysis. It dissects the parliamentary speeches of the leader of VOX, Santiago Abascal, in the debates for the approval and extension of the “state of alarm” to fight against COVID-19 between March and June 2020. In order to assess the changes and relative intensity of populist features in Abascal’s parliamentary speeches we compared them with his speech during Pedro Sánchez’s investiture session as the Spanish President of the Government, in January 2020, and VOX’s latest political manifestos—2019 European and Spanish General Elections—, as well as with speeches of the representatives of the five main parties and coalitions during the COVID-19 debates in the Spanish Congress.Our paper shows that populists’ discourses are context-dependent and that their performances are not only shaped by crisis but also constitutive of crisis. The density of populist references in Abascal’s speeches grew steadily during the period analysed. Morality and antagonism overshadowed sovereignty and society as key populist attributes, and the tone of the discourse became increasingly hyperbolic. Moreover, Abascal’s discursive performances had a sort of contagion effect in other parties in the parliamentary sessions studied. People’s Party (Partido Popular–PP) leader Pablo Casado chose to follow VOX and harshly criticized the government, meanwhile the discourses of the speakers of Together We Can (Unidas Podemos–UP) and Catalan Republican Left (Esquerra Republicana de Catalunya–ERC), adopted a demonizing rhetoric against VOX and PP also grounded on a populist logic of articulation. This polarizing dynamic between competing Manichean discourses contributed to reinforce the sense of crisis by adding a political dimension to the already existing health and economic problems.

India’s pandemic: spectacle, social murder and authoritarian politics in a lockdown nation

ABSTRACT This article maps and analyses the trajectory of India’s Covid-19 pandemic from its onset in early 2020 until the outbreak of the country’s devastating second wave a little over a year later. I begin with a critique of the lockdown policy of the right-wing Hindu nationalist government of the Bharatiya Janata Party (BJP) and Prime Minister Narendra Modi, which served as a political spectacle rather than a public health intervention. I then proceed to detail how India as a lockdown nation witnessed forms of social suffering and political repression that can only be truly understood in light of how the trajectory and impact of the COVID-19 pandemic was shaped by two preexisting crises in India’s economy and polity. In conclusion, I reflect on the likely political outcomes of the pandemic, considering both the impact of its second wave, and the emergence of oppositional sociopolitical forces in the country.

Hydrodynamics of the swirling steam-water two-phase flows over a surface with protrusions: Shape optimization and effect of rise in temperature on drag reduction

The current study studies the drag reduction offered by the plate with protrusions to the swirling steam-water two-phase flows. Protrusions of different types, having triangular, sinusoidal, and trapezoidal shapes, are investigated. The variations and modifications were made in the dimensions and orientations (facing along or across, flush-mounted or protruded into the swirling flows), to test the effectivity of these protrusions. At 5 bars of inlet gauge pressure and rpm varying from 360 to 1440, the trapezoidal shape provides the most effective drag reduction. It is also found from the PIV images of the fluid region near the protrusions that the drag reduction in the trapezoidal-shaped protrusions occurs mainly due to the secondary flow structures formation over those protrusions.On the one hand, the lateral spacing between the adjacent protrusions created the region of strengthening and expansion against the higher opposite inertial forces from the main swirling core fluids. While on the other hand, these spacings justify the impact of the axial elongation of the vortices above the protrusion tips. Further trends in drag reduction have also been investigated by observing the effect of the rise in the temperature of the fluid medium. Reduction in drag from 1.3 to 1.6% is noted using the trapezoidal protrusions for a temperature rise of 25–60 °C. It is also observed that the drag reduction profiles show a rising trend under the influence of the rising Nusselt Number. This trend is attributed to the decrease in viscosity. Whereas under the influence of a rising Prandtl number, the drag reduction shows a decreasing trend, mainly attributed to the rise in the pressure drop at the boundary layers and the pressure drop due to the friction.

Basic study of dielectric properties of cancer cells by dielectrophoretic velocimetry

AbstractCell separation technique is essential for the detection of circulating tumor cells in blood and for enrichment of stem cell in regenerative medicine. However, conventional methods require cell labeling such as antibodies, which may damage the cells during the operation. Therefore, dielectrophoresis (DEP), a “label‐free” separation technique that eliminates the effects on cells, has been attracting attention. In this paper, we investigated the dielectric properties of Jurkat cells derived from human T‐cell leukemia cells by dielectrophoretic velocimetry. An equivalent circuit model of the cell was constructed and the frequency characteristics of the voltage of each layer of the cell were calculated. As a result, it was shown that the live and dead cells showed opposite dielectrophoretic forces in the region below 10 kHz, indicating the possibility of separating them. The agreement between the theoretical calculations and the experimental results shows the validity of the equivalent circuit model.

Prediction of rill sediment transport capacity under different subsurface hydrologic conditions

When estimating rill sediment transport capacity for overland flow conditions, almost all widely used models focus on the impacts of surface hydraulic conditions and particle characteristics. However, the subsurface hydrologic impacts on the soil erosion process cannot be ignored. The upward force by exfiltration and the downward force by infiltration give opposite direction forces on the particles, which further influence sediment transport under seepage and drainage conditions. The aim of this research was to investigate the quantitative impacts of subsurface hydrologic conditions on sediment transport capacity in rills and improve the estimation of one existing transport capacity model by considering subsurface hydrologic effects. In this study, 216 rill flow experiments were completed in a 3.0 m long flume which contained four rill channels with slope lengths of 0.5, 1.0, 2.0, and 3.0 m. The experiments were conducted on close to uniform sands with four water discharge rates on 4.56%, 8.75%, and 12.17% slopes under four subsurface hydrologic conditions. The sediment transport rates from 192 of the 216 runs were estimated to have reached the sediment transport capacities for the corresponding condition based on the changes of sediment transport rates along the slope length and the surface elevation changes of the bottom region in the rills. The results indicated that rill sediment transport capacity increased significantly from free drainage to saturation conditions, and these differences increased with greater water discharge rates and greater slope gradients. Small increases in rill sediment transport capacity were observed from saturation to the 10 cm seepage condition with relatively stable differences. The selected sediment transport capacity equation provided good predictions under saturation and seepage conditions. The adjustment of water discharge rates improved the sediment transport capacity predictions with the discrepancy ratio between predictions and observations (P.O0.5–2.0) increasing from 73.0 to 90.5% under the free drainage condition and reaching 100% under the saturation and seepage conditions.

Populism, Liberal Democracy, and Constitutionalism: An Unholy Trinity

The new plague facing liberal democracy is authoritarian populist projects. Scholars have been grappling with discovering answers on how to safeguard liberal democracy in the face of authoritarian populist projects. Much of the legal academic discourse concerning the same has been centered around constitutional law innovations like unconstitutional constitutional amendments, revision clauses, defensive/militant democracy, or institutional mechanisms such as judicial institutions. Nonetheless, these tools have largely been unsuccessful in stopping or even halting authoritarian populist projects. This article will argue that authoritarian populist projects can ultimately only be prevented in the political arena and the electoral battleground. This can happen when united opposition forces either utilize their institutional leverages efficiently and impede authoritarian populist projects or win elections and prevent the re-emergence of populist autocrats. This article will also make the ambitious claim that in countries susceptible to populism, to prevent authoritarian populist projects, ultimately, authoritarian populist projects might need to be countered with tools from the populist toolkit in ways that capture people the populace’s imagination in the same way as authoritarian populist projects.

Dynamical properties of different models of elastic polymer rings: Confirming the link between deformation and fragility.

We report extensive numerical simulations of different models of 2D polymer rings with internal elasticity. We monitor the dynamical behavior of the rings as a function of the packing fraction to address the effects of particle deformation on the collective response of the system. In particular, we compare three different models: (i) a recently investigated model [N. Gnan and E. Zaccarelli, Nat. Phys. 15, 683 (2019)] where an inner Hertzian field providing the internal elasticity acts on the monomers of the ring, (ii) the same model where the effect of such a field on the center of mass is balanced by opposite forces, and (iii) a semi-flexible model where an angular potential between adjacent monomers induces strong particle deformations. By analyzing the dynamics of the three models, we find that in all cases, there exists a direct link between the system fragility and particle asphericity. Among the three, only the first model displays anomalous dynamics in the form of a super-diffusive behavior of the mean-squared displacement and of a compressed exponential relaxation of the density auto-correlation function. We show that this is due to the combination of internal elasticity and the out-of-equilibrium force self-generated by each ring, both of which are necessary ingredients to induce such a peculiar behavior often observed in experiments of colloidal gels. These findings reinforce the role of particle deformation, connected to internal elasticity, in driving the dynamical response of dense soft particles.

INVESTIGATION ON THE AIR-GAS CHARACTERISTICS OF AIR-HYDROGEN MIXER DESIGNED FOR DUAL FUEL – ENGINES

High smoke emissions, nitrogen oxide and particulate matter typically produced by diesel engines. Diminishing the exhausted emissions without doing any significant changes in their mechanical configuration is a challenging subject. Thus, adding hydrogen to the traditional fuel would be the best practical choice to ameliorate diesel engines performance and reduce emissions. The air hydrogen mixer is an essential part of converting the diesel engine to work under dual fuel mode (hydrogen-diesel) without any engine modification. In this study, the Air-hydrogen mixer is developed to get a homogenous mixture for hydrogen with air and a stoichiometric air-fuel ratio according to the speed of the engine. The mixer depends on the balance between the force exerted on the head surface of the valve and the opposite forces (the spring and friction forces) and its relation to decrease and increase the fuel inlet. Computational fluid dynamics (CFD) analysis software was utilised to study the hydrogen and airflow behaviour inside the mixer, established by 3.2 L engine. The Air-hydrogen mixer is examined with different speeds of engine1000, 2000, 3000 and 4000 RPM. Results showed air-hydrogen mixture was homogenous in the mixer. Furthermore, the stoichiometric air-fuel ratio was achieved according to the speed of the engine, the developed mixer of the AIR-Hydrogen mixing process provides high mixing homogeneity and engines with stoichiometric air-fuel ratios, which subsequently contributes to the high levels of efficiency in engine operation. In summary, the current study intends to reduce the emissions of gases and offer a wide range of new alternative fuels usage. While the performance of the diesel engine with the new air-hydrogen mixer needs to be tested practically.

From Brexit to Dexit? Alternative für Deutschland’s Euroscepticism on European debates in the Bundestag

ABSTRACT The 2017 entry of the AfD in the Bundestag is one of the most important event in the history of the federal Republic. The far-right party has changed the way debates are led on numerous subjects including European issues. We analyse how the Brexit debates have shaped AfD’s Euroscepticism and how other parties have reacted to this rhetoric. We investigate how Brexit is mobilized in the Bundestag as a political issue. The case of the AfD is particularly relevant since this far-right party was originally established in 2013 and based its foundations on a critique of the EU construction and particularly its monetary policy. However, the party has evolved into a populist, anti-migrant, sovereignist party while maintaining its Eurosceptic arguments. The AfD is the main opposition force in the Bundestag and has regularly managed to influence the media agenda and political debates on various topics, including Europe. Specific attention will be given to the debates in the plenary to underline how the Bundestag discusses this issue in a chaotic atmosphere. This article relies on the analysis of parliamentary debates and political programmes of the parties in the Bundestag from September 2017 to September 2019.

Montenegrin Miracle: Dismantling of the M. Djukanovic’s Regime

Theme of the paper: the confrontation between the government and opposition forces with regard to the parliamentary elections of August 30, 2020. The paper analyzes the factors behind the opposition's first victory through the prism of the thirty year-long period. The author gives credit to the MontenegrinPrimorye Metropolia of the Serbian Orthodox Church, which made a decisive contribution to the defeat of the incumbent authorities, i.e. the politically disoriented President and the government who entered into conflict with the hierarchs through their arrogant and short-sighted monopoly rule. It was precisely the Church circles led by the late Metropolitan Amphilochius who managed to consolidate the ever-quarreling opposition, give them a new promising leader and offer an effective political platform that made the unification of the proEuropean and Pro-Serbian parts of the opposition possible. The paper examines the international reaction to the transfer of power and its internal and foreign policy consequences. Chances of the new Cabinet of experts summoned by Zdravko Krivokapic to complete a full time are not too high. The trouble of the present coalition is not only its slim – by only one Assembly mandate – majority. The majority itself is extremely fragile, since the leaders of the Democratic Front, which forms the core of its pro-Serbian part, do not hide their feeling of being deceived and deprived of the division of trophies. Thereby they consider holding a snap parliamentary election almost a single task of the Cabinet. However, the government is already able to start dismantling the existing authoritarian regime of Milo Djukanovic. As far as its foreign policy is concerned it can be assumed that the new authorities would try to normalize relations with Serbia and Russia, deliberately damaged by Milo Djukanovic, but the fundamentals of the priority relations with the EU and NATO will remain unchanged.

Hybrid Incompatibility of the Plant Immune System: An Opposite Force to Heterosis Equilibrating Hybrid Performances.

Hybridization is a core element in modern rice breeding as beneficial combinations of two parental genomes often result in the expression of heterosis. On the contrary, genetic incompatibility between parents can manifest as hybrid necrosis, which leads to tissue necrosis accompanied by compromised growth and/or reduced reproductive success. Genetic and molecular studies of hybrid necrosis in numerous plant species revealed that such self-destructing symptoms in most cases are attributed to autoimmunity: plant immune responses are inadvertently activated in the absence of pathogenic invasion. Autoimmunity in hybrids predominantly occurs due to a conflict involving a member of the major plant immune receptor family, the nucleotide-binding domain and leucine-rich repeat containing protein (NLR; formerly known as NBS-LRR). NLR genes are associated with disease resistance traits, and recent population datasets reveal tremendous diversity in this class of immune receptors. Cases of hybrid necrosis involving highly polymorphic NLRs as major causes suggest that diversified R gene repertoires found in different lineages would require a compatible immune match for hybridization, which is a prerequisite to ensure increased fitness in the resulting hybrids. In this review, we overview recent genetic and molecular findings on hybrid necrosis in multiple plant species to provide an insight on how the trade-off between growth and immunity is equilibrated to affect hybrid performances. We also revisit the cases of hybrid weakness in which immune system components are found or implicated to play a causative role. Based on our understanding on the trade-off, we propose that the immune system incompatibility in plants might play an opposite force to restrict the expression of heterosis in hybrids. The antagonism is illustrated under the plant fitness equilibrium, in which the two extremes lead to either hybrid necrosis or heterosis. Practical proposition from the equilibrium model is that breeding efforts for combining enhanced disease resistance and high yield shall be achieved by balancing the two forces. Reverse breeding toward utilizing genomic data centered on immune components is proposed as a strategy to generate elite hybrids with balanced immunity and growth.

Conditioning a stable sustainability fix of ‘ungreen’ infrastructure in Indonesia: transnational alliances, compromise, and state’s strategic selectivity

This paper is the first academic attempt to critically bridge the politics of sustainability fix with social conflict theory (SCT) focusing on Indonesia’s foreign-sponsored development of Ultra Supercritical (USC) coal power plants. I examine the contradictory development of ‘green’ projects in Indonesia and specifically unpack: how transnational politico-economic forces have secured a stable sustainability fix for the USC and how they have tamed opposition forces and reshaped governance strategies for intensified accumulation. I attempt to empirically demonstrate how such process unfold through two case studies – Cirebon II developed by Japanese and Korean companies and the Java 7 project funded by China. Albeit each have different alliance formations and strategies, both cases demonstrate that the safeguarding of stable conditions for sustainability fixes of USC power plant development is primarily determined by contestation, conflicts, and compromises between socio-political forces – international fractions of capital, state apparatuses, Indonesia’s PLN and coal oligarchy as well as broader civil society actors. They reshape governing strategies that are ultimately organised through the Indonesian state and react to the selectivity of state strategies which privilege dominant forces. The paper contributes to the existing literature on the political economy of infrastructure and serves to take state transformation into account and to dispel the ‘methodological nationalism’ view that presupposes policy outcome and institutional features are inherent to the mode of capitalism of the investor’s country of origin.

Thermo-magneto-convection and mechanism of multiple eddy formation due to applied magnetic field in a lid-driven cavity

Magnetohydrodynamic study of eddy formation and heat transfer in a bottom heated two-dimensional lid-driven cavity with the insulated sidewall is reported in this paper. We consider the classic problem of a two-dimensional lid driven cavity in the presence of an applied external magnetic field. In the standard nonlinear Navier–Stokes equation and the energy equation, appropriate terms are added to model the applied magnetic field and thermo-magnetic convection. And we have derived a higher-order numerical scheme that can provide solutions that are fourth-order accurate. The scheme is implemented with suitable fourth-order accurate boundary conditions. The square LDC enclosure is filled with a fluid of Pr = 6.2. The top lid of the cavity is kept moving with constant velocity. The effect of magnetic field on heat transfer and eddy formation is discussed for 0 ≤ Ha ≤ 250, and 103 ≤ Gr ≤ 104 and the results are presented in terms of contour plots of streamlines, isotherms, Lorentz force, and the kinetic energy. The physical mechanism for forming multiple recirculation zones is understood and attributed to two opposite forces acting in the fluid about the center-line of the cavity, which acts like a couple (and hence rotational flow). This is discovered by computing the Lorentz force acting in the entire domain of fluid flow. Similarly, from the computation of kinetic energy of the fluid at all the grid points in the fluid region, it is revealed that conduction is the dominant heat transfer mechanism at higher magnetic fields. At the same time, convection is the prime mode at low magnetic fields. It is ascertained that with an increase in magnetic field intensity, velocity profiles are suppressed, and heat transfer stabilizes, giving rise to the formation of recirculation zones in the cavity.

Munathamat Badr, from an armed wing to a ruling actor

ABSTRACT Badr has become a key Shia socio-political-armed organisation in Iraq and has revamped its political and organisational structure. Previously, it was an Iran based and designed Iraqi Shia opposition force, the armed wing of the Supreme Council for the Islamic Revolution in Iraq. Post-2003 it transformed into an incohesive political organisation with an armed wing and engaged in electoral politics. Badr has influenced the state’s apparatus and played a key role in the Popular Mobilisation Forces’ campaign against the Islamic State in Iraq. Primary resources, including interviews, Badr’s media and platforms and publications explain Badr’s approaches and decentralised structure.

Sri Lanka in 2020

President Gotabaya Rajapaksa and his brother Prime Minister Mahinda Rajapaksa set in motion a process aimed at consolidating their family’s control of the executive, cabinet, and legislature. The global coronavirus pandemic gave them an opportunity to further militarize the administration of the country. The ruling party, the Sri Lanka People’s Front, won a two-thirds majority in the parliamentary elections, which allowed them to enact decisive constitutional change and overturn crucial legislation that curbed the power of the executive. The government’s ability to withstand the economic crisis and control the pandemic will be key to their complete blunting of any opposition forces.

Evolution of linguistic complexity in Hearthstone: a resource and an example in linguistic game studies

Abstract The present paper uses corpus linguistics methods to study a born-digital cultural artifact, namely the collectible card game Hearthstone, released in 2014 and still under active development in 2020. As indicated by the developers’ public statements, such a game, which is framed as an ongoing service rather than a final product, needs to strike a balance between two conflicting constraints: while the game must remain easily accessible at any stage of its development to increase the player base, the player’s experience must be constantly renewed to keep the existing player base from getting bored and leaving the game. In practice, this translates into the regular addition of new card sets by the developer. Our hypothesis is that linguistic traces of these opposite forces can be found in the evolution of lexical diversity in the text of the game’s rules, as opposed to its ‘flavour’ text, which plays no role in the game’s mechanics. To test this hypothesis, a corpus documenting the first two years of the game has been built and it is distributed in open access. The analysis of lexical diversity in these data shows that the rule text vocabulary is both highly controlled and subject to steady diversification. We view these features as reflecting stakes that characterise the ongoing management and development of a game-as-a-service like Hearthstone.

Hollow graphene fibres of highly ordered structure via coaxial wet spinning with application to multi-functional flexible wearables

Hollow graphene fibres have a large specific surface area with hollow, thereby increasing electrode electrolyte interfacial contact and promoting electron transport, have a layers structure of sheath as well as improving the mechanical properties. In this study, a one-step coaxial wet spinning method was adopted in which the core spinning solution was the same as the solidification solution. The graphene oxide (GO) dope in the shell was subjected to two-way solidification inside and outside and formed a dense shell. At the time, the injection speed ratio core/shell caused the core layer to pull rapidly on the shell, and the spinning dope was washed by the coagulation solution. The two opposite forces exerted a tug-of-war effect on the curved graphene sheet to gradually straighten it. Finally, a novel hollow graphene fibre with a dense and highly ordered shell was formed. Hollow fibres with a shell thickness of approximately 0.8 μm have a volume resistance of 1.14 × 10−2 Ω cm and a strength of 79.27 MPa, while non-hollow graphene fibres have a volume resistance of 2.69 × 10−2 Ω cm and a strength of 28.03 MPa. The hollow fibre also exhibited very stable electrical resistance during lateral compression cycles, providing a basis for the development of innovative hollow fibres for use in wearable flexible devices.

ENHANCING STRUCTURAL RESPONSE USING INERTER DAMPERS

This paper deals with one kind of dampers which is inerter damper, Inerter is a new mechanical element proposed by Professor Malcolm C. Smith from Cambridge University, which is defined as a mechanical two-terminal, one-port device with the property that the equal and opposite force applied at the terminals is proportional to the relative acceleration between the terminals the principle work of inerter damper is how to convert the linear motion into rotational motion to mitigation the external excitation. Theoretical analysis was presented first part is the analytical study which made modeling for the damping structure proposed and get the equation of motion for the inerter behavior, secondly numerical analysis where the program (ANSYS WORK-Bench 18.2) was adopted, and study the parameters which effected on the damping behavior of inerter structure proposed that is (stiffness, coefficient of friction and mass of flywheel). Where it was found that when the stiffness of the springs increased gradually from (0.2, 0.3, 0.4, 0.6 and 0.8) Kn/mm the amplitude reduced from (25.791, 17.194, 12.896, 8.5974 to 6.4482) mm respectively for each stiffness reading, also the mass of inerter when increased gradually (200,400,600,800 and 1000) g with a constant coefficient of friction and constant stiffness 0.4, 0.6 Kn/mm respectively, the amplitude decrease from 6.3525 to 4.036290. Finally, to study the effect inerter mass on the structures, the mass of inerter increased from (200,400,600,800 to 1000) g gradually to the constant cantilever mass structure equal to 130g. The ratio of the inerter mass to the threshold mass is approximately 1.5 to 7.5 As results obtained from the previous study, the amplitude obtained for each mass (1.0778, 1.069, 1.0509, 0.9514 to 0.872) respectively