cyclic movement
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2021 ◽  
Author(s):  
◽  
Toby Walker

<p><b>For me, cities are the ultimate creative gesture. Largely in part, most cities are not developed to take this opportunity. Architectural history has in the main part been in service to deities and autocracies. This has been consistently expressed through to contemporary times, where it is now mainly in service of capitalism (Tafuri, 1976). Large developers have tended to treat the city as a consumer item, focussing on how people would consume the city, evidently opposed to the experience and how it affects the user (Tuck, n.d.).Within our field, how do we resist the shortcomings of capitalism? </b></p> <p>How might one conceive a monument to the creative city?</p> <p>This research proposes bringing creative practice to the forefront of urbanism as one potential alternative to the ‘consumer city’. By drawing creative practice to the core of urbanism, there is a chance to positively mould a city’s design values and public spaces. The city’s architecture, design values and built environment can be transformed productively and progressively.</p> <p>This research proposes polycentrism in Porirua as a means to explore Art Based Urbanism within the local context. This is explored through design-led research, exploring the potential of my creative processes and personal tendencies as a means of contemplating these issues. By reflecting on my creative process, I start to find a particular architecture within my innate tendencies. This architecture developed as a product of my cyclic movement between moments of expression through architectural language finding experiments, and pragmatism through infrastructure/circulation planning and mapping.</p> <p>This research demonstrates one potential alternative to the issue of the city being considered a ‘consumer item’. I have designed a monument to creative practices, a modern acropolis to reflect the creative spirit of society and bring it to the centre of the city.</p>


2021 ◽  
Author(s):  
◽  
Toby Walker

<p><b>For me, cities are the ultimate creative gesture. Largely in part, most cities are not developed to take this opportunity. Architectural history has in the main part been in service to deities and autocracies. This has been consistently expressed through to contemporary times, where it is now mainly in service of capitalism (Tafuri, 1976). Large developers have tended to treat the city as a consumer item, focussing on how people would consume the city, evidently opposed to the experience and how it affects the user (Tuck, n.d.).Within our field, how do we resist the shortcomings of capitalism? </b></p> <p>How might one conceive a monument to the creative city?</p> <p>This research proposes bringing creative practice to the forefront of urbanism as one potential alternative to the ‘consumer city’. By drawing creative practice to the core of urbanism, there is a chance to positively mould a city’s design values and public spaces. The city’s architecture, design values and built environment can be transformed productively and progressively.</p> <p>This research proposes polycentrism in Porirua as a means to explore Art Based Urbanism within the local context. This is explored through design-led research, exploring the potential of my creative processes and personal tendencies as a means of contemplating these issues. By reflecting on my creative process, I start to find a particular architecture within my innate tendencies. This architecture developed as a product of my cyclic movement between moments of expression through architectural language finding experiments, and pragmatism through infrastructure/circulation planning and mapping.</p> <p>This research demonstrates one potential alternative to the issue of the city being considered a ‘consumer item’. I have designed a monument to creative practices, a modern acropolis to reflect the creative spirit of society and bring it to the centre of the city.</p>


2021 ◽  
Author(s):  
Martin Schwarze ◽  
Carlo Rüger ◽  
Oliver Georgi ◽  
Hendrik Rentzsch ◽  
Holger Pätzold

Due to continuous tool engagement, turning processes tend to form long chips when machining ductile materials. These chip shapes have a negative influence on process performance and productivity. One approach to improve chip breakage is superimposition of vibrations in feed direction of the turning process, which leads to a modulation of uncut chip thickness. In a joint industrial project with Schaeffler Technologies AG & Co. KG, Fraunhofer IWU developed an oscillating actuator for turning. The actuator converts a rotational movement of a drive motor into a translational vibration via an eccentric gear. The tool shank is mounted in solid joint assemblies. With this prototypical system, a cyclic movement of the tool in feed direction can be realized. The typical operating parameters of the actuator is within the range of 1...100 Hz with adjustable vibration amplitudes up to 0.6 mm peak-to-peak. A significant improvement in chip breaking during the machining of steel 1.0503 was shown in cutting tests.


Author(s):  
Inass Announi

This paper attempts to investigate word order and verbal movement in Moroccan Arabic in the Minimalist framework. We observe that the unmarked word order in MA is SVO while the derived structure is VSO. SVO follows an English-like derivation where the subject moves from [Spec, vP] to [Spec, TP] whilst the verb moves from v to T. This paper raises the issue of the verbal movement when it comes to VSO order in languages that have VSO as the derived order and SVO as the underlying order. To derive VSO, we propose that the verb moves from T to Focus based on pragmatic reasons: verbs positioned in the left-periphery denote new information that is focused compared to SVO. We also test our new proposal against the marginal word orders OSV and OVS and propose that object topicalization is the result of the object moving to [Spec, TopicP] which dominates FocusP. Moreover, we go back to the issue of verbal movement and trace the verbal cyclic movement. We argue that the verb moves from V to v based on the position of the adverb. The verb further moves to T based on the quantifier evidence and feature checking: Focus and T form a complex and probe into v to check [TNS] and [V] features. Moreover, T-to-Focus occurs in wh-constructions except when /lli/ ‘that’ is present. In WH-VO (WH as a wh-subject), the verb stays in T while the wh-subject stays in [Spec, TP]. If /lli/ ‘that’ is present, then the wh-subject is forced to move further to [Spec, FocusP]. In WH-SV, the wh-elements move to [Spec, FocusP] while the subject moves to [Spec, TopicP] and the verb moves to Topic. In WH-VS, the wh-elements move to [Spec, FocusP] while the verb moves to Focus.


2021 ◽  
Vol 21 (3) ◽  
pp. 1526-1536
Author(s):  
Gomathyjayamani ◽  
M. Swaminathan ◽  
M. Shanthi

At present, nanotechnology field development makes a major role in photocatalysis. CdS-ZnMoO4 (36.6 wt%) coupled nanophotocatalyst is synthesized using facile hydrothermal method. The CdSZnMoO4 catalyst shows superior photocatalytic activity in the Naphthol Green B (NGB) dye degradation in UV-A (365 nm) light irradiation. XRD analysis reveals the monoclinic structure of ZnMoO4, cubic structure of CdS. PL shows lesser the recombination (e−–h+) rate of electron–hole pair formation. UV-Vis-DRS reveals an increase in absorption in entire visible region while loading with CdS. SEM images indicate that CdS-ZnMoO4 has nanofibrous structure. EDS reveal that Cd and S are present on the ZnMoO4 surface. ECM indicates the division of homogeneity in elements. SAED pattern of HR-TEM images proved high crystalline properties of the catalyst. XPS reveals the different oxidation states and term-symbols of Cd, S, Zn, Mo and O in this catalyst with corresponding binding energies. CdS-ZnMoO4 (18.5 m2g−1) has a higher surface area compared to ZnMoO4 (10.8 m2g−1). Current densities obtained from CV reveals the higher cyclic movement of electrons (electrochemical activity) of CdS-ZnMoO4. An effective parameters for photodegradability of NGB dye by CdS-ZnMoO4 was analyzed.


2021 ◽  
Vol 1 (63) ◽  
pp. 38-43
Author(s):  
S. Koshel ◽  
◽  
G. Koshel ◽  

To create reliable and highly efficient, en- ergy-saving machines for light industry, it is necessary to study the dynamic processes of movement of the links of the mechanisms of which they are composed. Especially such studies should be given attention for machines, the mechanisms of which have a cyclic nature of action. During the execution of a technological operation in light industry machines with a periodic cyclic movement of the working bodies, an uneven movement of the main shaft occurs. This is caused by the movement of the links of the mechanism with certain accelerations and taking into account the periodic nature of the action of technological loads, which vary in magnitude and direction. The uneven nature of the movement leads to the appearance of additional loads in the kinematic pairs of mechanisms, mechanical vibrations in the mechanical trans- mission systems of motion, leads to the appearance of vibrations and violations in the positioning of the working bodies, affects the techno- logical process of the equipment. Uniform and stable tension of the threads is the key to a high-quality performance of the loop formation process in knitwear. Additional dynamic loads affect the technological tension of textile threads during equipment operation. These loads are caused by the accelerated movement of the links of the mechanism, which is especially important for technological equipment with the pres- ence of a reverse working stroke of its links. In such mechanisms, the values of the angular acceleration of the links and the linear accelera- tion of their individual points can acquire critically permissible values. It is possible to ensure the movement of the working bodies of the machine according to the law for which the tension of the threads will be optimally necessary. To do this, you need to choose the right type of mechanism that sets them in motion. The aim of the work is to conduct a structural-kinematic research of the mechanism of the reversible movement of the needle drum of a knitting machine, which will justify the selection of the required type of mechanism for such equipment. The confirmation of the improvement of the conditions for the formation of loops when knitting on a knitting machine with a reversible needle drum movement, made on the basis of a rocker mechanism, has been obtained.


Author(s):  
Vladimir L. Dyachkov

The first part of this study examines the evolution and the current state of conceptualization and historiography of the “Antonovschina”, identifies the factors of the newest methodological and cognitive crisis in the study of the Civil War in Russia as a whole and its individual key, significant phenomena. In the second part of the study, proceeding from the principle of historicism, we propose our own conceptualization of the Civil War and the Tambov peasant uprisings as its “green” components, proceeding from the understanding of social history as a movement of a socio-natural hierarchical system that regulated the life of populations of any level. Civil War is presented as a rhythmic part of the phase of suppression of an overpopulated population by a complex of endogenous and exogenous factors of long (28-year, 112-year) natural-demographic cycles. The definitions of specific phenomena (“female attacks”, “demographic bag”, “Kotovsk case”, etc.), opened with the help of electronic databases (ED) in long continuous lines of socio-graphic information, are given. A method of marking the cyclic movement of different forms and channels of social aggression (activity) is proposed. The mechanism and manifestations of the work of the regulating socio-natural cycles are shown in tables and figures.


Author(s):  
Rui P. Chaves ◽  
Michael T. Putnam

This chapter discusses how the Minimalist Program (MP) strives to model unbounded dependency constructions and island constraints, and discusses the empirical, theoretical and cognitive status of syntactic displacement (movement), as formalized in terms of Internal Merge. At the present time, modelling filler-gap dependencies via movement faces significant theoretical and empirical issues. There is no parsimonious account of successive cyclic movement in the MP because of the Triggering Problem, nor of convergent and cumulative filler-gap dependencies. Other problems concern island phenomena, which have been argued to follow from core architectural economy constraints, but which make incorrect predictions not only about islands, but also about unbounded dependency constructions more generally. Finally, the MP has also been difficult to reconcile with extant psycholinguistic evidence about language processing. All recent attempts to make the MP consistent with incremental sentence processing adopt phrase-structural information, and abandon movement altogether.


Author(s):  
Christian Maurer-Grubinger ◽  
Jasmin Haenel ◽  
Laura Fraeulin ◽  
Fabian Holzgreve ◽  
Eileen M. Wanke ◽  
...  

Background: Vacuum cleaning, which is associated with musculoskeletal complaints, is frequently carried out in private households and by professional cleaners. The aim of this pilot study was to quantify the movements during habitual vacuuming and to characterize the movement profile with regard to its variability. Methods: The data were collected from 31 subjects (21 f/10 m) using a 3D motion analysis system (XSens). Eight vacuum cleaners were used to vacuum polyvinyl chloride (PVC) and carpet floors. In 15 joints of the right upper extremity, the trunk and the lower extremities, Principal Component Analysis was used to determine the predominantly varying joints during vacuuming. Results: The movements of the trunk and the lower extremities were relatively constant and, therefore, had less influence. The shoulder, elbow and wrist joints were identified as joints that can be decisive for the movement profile and that can be influenced. These joints were represented in the course of the vacuuming cycle by the mean movement with its standard deviation. Conclusion: In summary, the generalization of a movement profile is possible for the trunk and the lower extremities due to the relative homogeneity. In future it will be necessary to identify factors influencing variability in order to draw conclusions about movement ergonomics.


2020 ◽  
Vol 37 (3) ◽  
pp. 393-431
Author(s):  
Gabriel Martínez Vera

AbstractThis paper discusses wh-extraction in Spanish clauses involving a V + de + CP sequence (de ‘of’ is a preposition). The previous literature has observed that objects, but not adjuncts, can be extracted from a single de + CP embedded clause. I make the following novel observations: (i) subjects pattern with adjuncts (not with objects) in that they cannot be extracted from a single de + CP embedded clause, (ii) there is a ‘distance’ effect in that subject extraction improves when one more level of embedding is added, and (iii) there is also a ‘distance’ effect with regard to adjunct extraction, which improves when one more level of embedding is added. (i)–(iii) are surprising since subjects otherwise do not pattern with adjuncts with regard to extraction out of islands due to the pro-drop nature of Spanish, and adjunct extraction out of islands is otherwise uniformly unacceptable. I propose a phasal account of the pattern in question where Phase Collapsing (i.e., a mechanism whereby two phasal heads, here de and C, are collapsed into one, thus voiding the phasehood of the lower phase headed by the C) and successive cyclic movement play crucial roles. I further extend the account to other cases where a CP co-occurs with a preposition.


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