Development of Flexible Biceps Tremors Sensing Chip of PVDF Fibers with Nano-Silver Particles by Near-Field Electrospinning

Polyvinylidene fluoride (PVDF) and AgNO3/PVDF composite piezoelectric fibers were prepared using near-field electrospinning technology. The prepared fibers are attached to the electrode sheet and encapsulated with polydimethylsiloxane to create an energy acquisition device and further fabricated into a dynamic sensing element. The addition of AgNO3 significantly increased the conductivity of the solution from 40.33 μS/cm to 883.59 μS/cm, which in turn made the fiber drawing condition smoother with the increase of high voltage electric field and reduced the fiber wire diameter size from 0.37 μm to 0.23 μm. The tapping test shows that the voltage signal can reach ~0.9 V at a frequency of 7 Hz, and the energy conversion efficiency is twice that of the PVDF output voltage. The addition of AgNO3 effectively enhances the molecular bonding ability, which effectively increases the piezoelectric constants of PVDF piezoelectric fibers. When the human body is exercised for a long period of time and the body is overloaded, the biceps muscle is found to produce 8 to 16 tremors/second through five arm flexion movements. The voltage output of the flexible dynamic soft sensor is between 0.7–0.9 V and shows an orderly alternating current waveform of voltage signals. The sensor can be used to detect muscle tremors after high-intensity training and to obtain advance information about changes in the symptoms of fasciculation, allowing for more accurate diagnosis and treatment.

Weather based forecast models for diseases in mustard crop

iwoZ psrkouh iz.kkfy;k¡ Qlyksa ij uk'kd thoksa@chekfj;ksa ds geys gksus dh iwoZ lwpuk iznku dj ldrh gSaA blls igys ds vf/kdka'k dkexkj uk'kd thoksa@ chekfj;ksa dh iwoZ psrkouh ds fy, lekJ;.k ekWMYl ¼jSf[kd vkSj vjSf[kd nksuksa½ dk mi;ksx djrs jgs gSaA budh mi;qDrrk dh O;kidrk ds dkj.k orZeku esa d`f=e raf=dh; latky ¼ANNs½ rduhd izpyu esa gS vkSj bl rduhd ds lqxe gksus ds dkj.k vLi"V vkSj nks"kiw.kZ vkadM+ksa ds gksus ij Hkh blls tfVy leL;kvksa dk bykt fd;k tk ldrk gSA bl i)fr dh [kkst ljlksa dh Qly esa gksus okyh vf/kdre xaHkhj chekfj;ksa ,YVjusfj;k CykbV vkSj ikmMjh feYM~;w dh iwoZ psrkouh nsus ds fy, dh xbZ gSA chekjh dh vkjafHkd voLFkk esa vkSj chekjh ds xaHkhj gks tkus dh voLFkk esa Qly ij buds izHkko vyx&vyx gksrs gSa tSlk fd iwokZuqekudŸkZvksa }kjk Hkjriqj] <ksyh vkSj csjgkeiqj uked rhu LFkkuksa ds ekSle rkfydkvksa }kjk crk;k x;k gS A bl 'kks/ki= esa nks izdkj ds raf=dh; latky lajpukvksa uker% eYVhysvj ijlsIVªkWu ¼MLP½ vkSj jsfMvy csfll QaD'ku ¼RBF½ dks fy;k x;k gS vkSj bldh rqyuk ekSle rkfydkvksa ij vk/kkfjr lekJ;.k ekWMy ls dh xbZ gS vkSj ik;k x;k gS fd MLP ds ifj.kke vkSlr fujis{k izfr'kr =qfV ¼MAPE½ ds vFkZ esa lcls vPNs jgs gSaA Forewarning systems can provide advance information for outbreak of pests / diseases attack. Most of the earlier workers have utilised regression models (both linear and non-linear) for pests / diseases forewarning. Artificial Neural Network (ANNs) techniques are in vogue due to their wide range of applicability and the ease with which they can treat complicated problems even if the data are imprecise and noisy. This methodology has been explored for forewarning Alternaria Blight and Powdery mildew in mustard for maximum disease severity, crop age at first appearance of disease and crop age at maximum disease severity as response variables and weather indices as predictors for three locations namely Bharatpur, Dholi and Berhampur. In this study, two types of neural network architectures namely Multilayer perceptron (MLP) and Radial basis function (RBF) were attempted and compared with weather indices based regression model and it has been found that a MLP performs best in terms of mean absolute percentage error (MAPE).

Agrometeorological Advisory to assist the farmers in meeting the challenges of extreme weather events

In recent past extreme weather events are causing great concern in different sectors contributing to the Indian economy. Among other, agricultural sectors are badly affected by the extreme weather events. Weather and climate information play a great role in minimizing the loss of crops. India Meteorological Department is doing yeomen’s service by providing advance information including monitoring of the extreme weather events along with the proper advisories to the farming community by using state of art instruments & technology through efficient delivering mechanism of the information and ultimately help the farmers from incurring great loss. Satellite information is also used for preparation of the accurate crop and location specific Agromet Advisories. Under Public Private Partnership, today it is possible to send the weather forecast and advisories within short time to large number of farmers in the country before the occurrence of extreme weather events and ultimately possible to improve the economic condition of small and marginal farmers by increasing the productivity of crops.

On Leading Practices of Preliminary Notification in the Interaction of Customs Authorities and Business Structures

Aim. The presented study aims to identify the key features of best practices in the organization of advance notification by analyzing advance notification practices in the European Union (EU) and Japan.Tasks. The authors analyze the organization of advance notification in the EU and Japan, identify the key features of best practices in the organization of advance notification, and formulate recommendations for Russian customs authorities.Methods. This study uses general scientific methods (analysis, synthesis, comparison) and special scientific methods (legal analysis, process analysis).Results. In the process of analyzing advance notification practices in the EU and Japan, the key features of best practices in the organization of advance notification are identified and described.Conclusions. Recommendations for the development of advance notification in Russia are formulated: to increase the number of factors used to determine the content of advance information provided on a mandatory basis. An attempt is made to develop methodological recommendations for verifying information at the stage of advance notification.

Public Service Media for Critical Times: Connectivity, Climate, and Corona

In this chapter, Graham Murdock analyses the role of public service media in the contemporary times of crisis that have been shaped by connectivity, the climate crisis, and the COVID-19 crisis. Using lots of examples, the political economy of communication approach, and Habermas’s concept of the public sphere, the chapter points out that Public Service Media is not something of the past, but is needed for guaranteeing a vivid and democratic public sphere in the digital age. The chapter points out the potentials of public service media for creating and maintaining digital public spaces that advance information, education, entertainment, and participation. This chapter is a written and amended version of a talk by Graham Murdock that he gave on 15 February 2021 at a webinar that was part of the AHRC project “Innovation in Public Service Media Policy” (https://innopsm.net/) and its research focus on “Envisioning Public Service Media Utopias”. A video of the talk is available at: https://www.youtube.com/watch?v=-4dJSzyW_GM.

Performance Comparison of Supply–Demand Matching Policies for On-Demand Mobility Services

In the context of on-demand mobility services, we compare the performance of three matching policies of increasing sophistication on scenarios based on real data from the city of Chicago in the United States. The comparative study examines the influence of prebooking and ridesharing on the gap between the different policies. We find that more sophisticated approaches can improve the acceptance ratio and the service-level key performance indicators at the expense of longer computation times. Prebooking appears to consistently give an edge to more sophisticated policies by providing advance information and thus the flexibility to make better plans. The effect of ridesharing is less straightforward to isolate. But, again, prebooking helps more sophisticated approaches reduce excess ride time, a direct consequence of ridesharing.

Analysis and assessment of defectiveness of regulations for the yellow signal at the intersection

Imprecise and defective regulations should be eliminated in the operation of vehicles. The article discusses and evaluates the differences in legal acts regarding the requirements for the yellow signal at intersections with traffic lights. Poland has signed the Vienna Convention on signs and signals. When implementing it into Polish legislation, the original provision was changed slightly. The reason for the ban on entering the intersection during the yellow signal has been changed. As a result, an unfavorable situation arises for the driver without a good way out. In addition, a colloquial word was introduced, undefined – “rapid braking”. The changes introduced in relation to the Vienna Convention were analyzed and evaluated. Defects were found and the need and necessity of correction of the applicable provision were reported. The necessity to consider changing the provision in the Vienna Convention was also pointed out. There is a need to provide advance information about an upcoming change. These are activities in the operation of vehicles in road traffic from the area of active safety system. It may be possible to use e.g. a flashing signal in the final phase of displaying a solid green signal on the S1 signaling device for vehicles.

Analysis of dangers in the operation of city buses at the intersections

Summary Operation of motor vehicles should take into account the elimination of the possibility of accidents. The article considers selected problems occurring in the operation of public transport buses at intersections. Compliance with the requirements of the safety system during signal change on the signaling device controlling traffic at the intersection was analyzed. The human factor in ergonomics is important. Ending the green signal display (in special situations) causes a dilemma of decisions. The driver brakes abruptly (resulting in potentially harming passengers on the bus) or passes through a signal light displaying a red signal. The need to introduce changes in the regulations that would allow the introduction of adequate solutions was pointed out. These are activities in the area of the active safety system in the operation of vehicles in road traffic. The need to provide advance information and change the provisions in applicable law has been demonstrated.