Truck Driver Fatigue Detection Based on Video Sequences in Open-Pit Mines

Due to complex background interference and weak space–time connection, traditional driver fatigue detection methods perform poorly for open-pit truck drivers. For these issues, this paper presents a driver fatigue detection method based on Libfacedetection and an LRCN. The method consists of three stages: (1) using a face detection module with a tracking method to quickly extract the ROI of the face; (2) extracting and coding the features; (3) combining the coding model to build a spatiotemporal classification network. The innovation of the method is to utilize the spatiotemporal features of the image sequence to build a spatiotemporal classification model suitable for this task. Meanwhile, a tracking method is added to the face detection stage to reduce time expenditure. As a result, the average speed with the tracking method for face detection on video is increased by 74% in comparison with the one without the tracking method. Our best model adopts a DHLSTM and feature-level frame aggregation, which achieves high accuracy of 99.30% on the self-built dataset.

Minimal Size of Counters for (Real-Time) Multicounter Automata

We show that, for automata using a finite number of counters, the minimal space that is required for accepting a nonregular language is (log n)ɛ. This is required for weak space bounds on the size of their counters, for real-time and one-way, and for nondeterministic and alternating versions of these automata. The same holds for two-way automata, independent of whether they work with strong or weak space bounds, and of whether they are deterministic, nondeterministic, or alternating. (Here ɛ denotes an arbitrarily small—but fixed—constant; the “space” refers to the values stored in the counters, rather than to the lengths of their binary representation.) On the other hand, we show that the minimal space required for accepting a nonregular language is nɛ for multicounter automata with strong space bounds, both for real-time and one-way versions, independent of whether they are deterministic, nondeterministic, or alternating, and also for real-time and one-way deterministic multicounter automata with weak space bounds. All these bounds are optimal both for unary and general nonregular languages. However, for automata equipped with only one counter, it was known that one-way nondeterministic automata cannot recognize any unary nonregular languages at all, even if the size of the counter is not restricted, while, with weak space bound log n, we present a real-time nondeterministic automaton recognizing a binary nonregular language here.

SPIGELIAN HERNIA IN A VIRGIN ABDOMEN - AN ENIGMATIC CASE REPORT ON A COINCIDENTAL FINDING DURING TOTAL LAPAROSCOPIC HYSTERECTOMY

A spigelian hernia is a type of ventral hernia where aponeurotic fascia pushes through a hole to create a bulge . It is the protuberance of omentum , adipose tissue or bowel in that weak space between rectus muscles and ventral abdominal obliques that ultimately pushes intestines or superficial fatty tissue through a hole creting a bulge.Spigelian hernias are rare as they are located not under abdominal layers of fat but between fascia interconnecting two muscles . We hereby present a case report on this rare hernia presenting as a bulge in left inguinal fossa of a 66 yr old woman scheduled for total laparoscopic hysterectomy and was repaired subsequently.

SWOT Analysis of Pakistan’s Space Program

Outer space in Pakistan is a trivial notion, and the idea has become less concerning for the authorities let alone the general masses. For decades, this field has been void of any particularly outstanding and significant development in the country with only a handful of satellites launched in outer space. Where the world has progressed in space technology utilizing it for exploring, exploiting, and now even racing to dominate the global common, that is the outer space, Pakistan‟s space program has been lagging and misses the opportunities that a robust outer space program provides, all the while ignoring the threats that arise from a weak space program. The significance of outer space has increased over the years in both civilian and military domains, where militarization outer space is now being transformed into a weaponization phenomenon. The space race that began in the Asian region with the Soviet Union inspired periphery states such as Pakistan to join space faring. Pakistan was the third country in Asia to establish its space agency; however, over time, it has lost its acclaimed position. Over time, it has grown weak with minimal research and development (R&D) in the field. Pakistan‟s space program lacks a place in the literature, and academic discussions and this study aims at filling that gap by analyzing the strengths, weaknesses, threats, and opportunities for the space program of Pakistan.

Exact large-scale correlations in integrable systems out of equilibrium

Using the theory of generalized hydrodynamics (GHD), we derive exact Euler-scale dynamical two-point correlation functions of conserved densities and currents in inhomogeneous, non-stationary states of many-body integrable systems with weak space-time variations. This extends previous works to inhomogeneous and non-stationary situations. Using GHD projection operators, we further derive formulae for Euler-scale two-point functions of arbitrary local fields, purely from the data of their homogeneous one-point functions. These are new also in homogeneous generalized Gibbs ensembles. The technique is based on combining a fluctuation-dissipation principle along with the exact solution by characteristics of GHD, and gives a recursive procedure able to generate nn-point correlation functions. Owing to the universality of GHD, the results are expected to apply to quantum and classical integrable field theory such as the sinh-Gordon model and the Lieb-Liniger model, spin chains such as the XXZ and Hubbard models, and solvable classical gases such as the hard rod gas and soliton gases. In particular, we find Leclair-Mussardo-type infinite form-factor series in integrable quantum field theory, and exact Euler-scale two-point functions of exponential fields in the sinh-Gordon model and of powers of the density field in the Lieb-Liniger model. We also analyse correlations in the partitioning protocol, extract large-time asymptotics, and, in free models, derive all Euler-scale nn-point functions.