Low-Power Wide-Area Network (LPWAN) is an emerging network technology for Internet of Things (IoT) which offers long-range and wide-area communication at low-power. It thus overcomes the range limits scalability challenges associated with traditional short wireless sensor networks. Due to their escalating demand, LPWANs are gaining momentum, multiple competing technologies currently being developed. Despite promise, existing LPWAN raise a number in terms spectrum limitation, coexistence,...

Wireless sensor networks (WSNs) face significant scalability challenges due to the proliferation of wide-area wireless monitoring and control systems that require thousands sensors be connected over long distances. Due their short communication range, existing WSN technologies such as those based on IEEE 802.15.4 form many-hop mesh complicating protocol design network deployment. To address this limitation, we propose a scalable architecture - called Sensor Network Over White Spaces (SNOW)...

The effect of intrarenal renin–angiotensin system (RAS) activity on risk chronic kidney disease (CKD) has not been well studied in human subjects. We investigated the association between urinary angiotensinogen, a reliable biomarker RAS activity, and CKD 201 patients controls. was defined as estimated glomerular filtration rate (eGFR) < 60 mL/min/1.73 m2 or presence albuminuria ( ≥ 30 mg/24 h). Compared to controls, median angiotensinogen excretion (45.4 versus 7.4 μg/24 h, P 0.0001)...

As a key technology driving the Internet-of-Things, low-power wide-area networks (LPWANs) are evolving to overcome range limits and scalability challenges in traditional wireless sensor networks. This paper proposes new LPWAN architecture called <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">sensor network over white spaces (SNOW)</i> by exploiting TV spaces. The SNOW is first highly scalable that enable asynchronous, bi-directional,...

M. Rahman t9'21 and J. R. Barber 2°'21 (1958) for a line load moving steadily over the surface of half-plane. Both these results can be used as Green's functions to generate convolution integrals more general boundary value problems availability an explicit factorization rationalized form (3) R ( V ) permits such broken down into simpler terms by partial fractions.

Low-Power Wide-Area Network (LPWAN) heralds a promising class of technology to overcome the range limits and scalability challenges in traditional wireless sensor networks. Recently proposed Sensor over White Spaces (SNOW) is particularly attractive due availability advantages TV spectrum long-range communication. This paper proposes new design SNOW that asynchronous, reliable, robust. It represents first highly scalable LPWAN white spaces support bi-directional, concurrent communication...

Prolonging the network lifetime is a major consideration in many Internet of Things applications. In this paper, we study maximizing an energy-harvesting LoRa network. Such characterized by heterogeneous recharging capabilities across nodes that not taken into account existing work. We propose link-layer protocol to achieve long-lived which dynamically enables with depleting batteries exploit superfluous energy neighboring affluent letting node offload its packets node. By exploiting LoRa's...

We examined glomerular synthesis of the 5-lipoxygenase metabolite, LTB4, in normal and immune-injured rat glomeruli. Glomeruli isolated from rats with nephrotoxic serum nephritis (NSN), passive Heymann (PHN) cationic bovine gamma globulin (CBGG)-induced glomerulonephritis were incubated calcium ionophore A23187 (3 microM). Lipids glomeruli media extracted ethyl acetate, purified fractionated by HPLC. Immunoreactive-LTB4 (i-LTB4) was determined radioimmunoassay on HPLC fractions a detection...

We consider the problem of determining elastic field in an infinite solid induced by ellipsoidal inclusion with a distribution eigenstrains. The particular type considered article is characterized polynomial Cartesian coordinates points inclusion. Eshelby showed that such situation strain within also same order. However, explicit expression for this seems to have not yet been reported literature. present study fills gap.

Raw pineapple leaf fibers (PALFs) were chemically modified by scouring, NaOH treatment, and bleaching (NaClO 2 ). The graft copolymerization of synthetic acrylonitrile monomer onto bleached PALFs was carried out in aqueous medium using potassium persulfate (K S O 8 /FeSO 4 ) as a redox initiator. maximum grafting level at optimum conditions, namely, concentration, initiator catalyst reaction time, temperature have been determined. main objective this study is to decrease the amorphous region...

Low-Power Wide-Area Network (LPWAN) is an enabling Internet-of-Things (IoT) technology that supports long-range, low-power, and low-cost connectivity to numerous devices. To avoid the crowd in limited ISM band (where most LPWANs operate) cost of licensed band, recently proposed SNOW (Sensor over White Spaces) a promising LPWAN platform operates TV white spaces. Nevertheless, current implementation uses USRP devices as nodes which have high ≈ $750 USD per device) large form-factor, hindering...

Low-Power Wide-Area Networks (LPWANs) are evolving as an enabling technology for Internet-of-Things (IoT) due to their capability of communicating over long distances at very low transmission power. Existing LPWAN technologies, however, face limitations in meeting scalability and covering wide areas which make adoption challenging future IoT applications, especially infrastructure-limited rural areas. To address this limitation, paper, we consider achieving extended coverage by integrating...

Low-Power Wide-Area Networks (LPWANs) are evolving as an enabling technology for Internet-of-Things (IoT) that offer long communication range at low power. Despite their promise, existing LPWANs still face limitations in meeting scalability and covering much wider area which make adoption challenging future IoT applications, specially infrastructure-limited rural areas. To address this, we consider achieving by integrating multiple need to coordinate extended coverage. Recently proposed SNOW...

Recent advancements in industrial Internet-of-Things (IoT), more specifically, the development of wireless standards such as WirelessHART and ISA100, are paving way for fourth revolution, Industry 4.0. These specify highly reliable real-time communications key requirements sensor-actuator networks. Schedulability analysis remains cornerstone analyzing performance these While it is well-explored domain CPU scheduling, schedulability multi-hop networks has seen little progress till date....

We demonstrate that fractional Laplacian (FL) is the principal characteristic operator of harmonic systems with self-similar interparticle interactions. show FL represents ‘fractional continuum limit’ a discrete ‘self-similar Laplacian’ which obtained by Hamilton's variational principle from spring model. deduce generalized elastic potentials regular representations for involve convolutions symmetric finite difference operators even orders extending standard representation FL. Further we...

Interference between concurrent transmissions causes severe performance degradation in a wireless network. This paper addresses interference cancellation to enable simultaneous packet receptions at node with single radio Wireless Sensor Networks (WSN). is particularly important for WSN as most of its applications rely on convergecast where all the traffic network delivered base station leading lot collisions. Existing solutions collision recovery make simplified assumptions such availability...

Explicit expressions are developed, using Dyson's theorem, for the internal and external potentials of an ellipsoid in a three-dimensional Euclidean space case where volume mass density varies as(1-∑n=13xn2an2)l-1∑i+j+k=0Nσijk(x1a1)i(x2a2)j(x3a3)k,ijk(x1/a1)i(x2/a2)j(x3/a3)k l, i, j, k = 0, 1, 2,... ai(i 2, 3) semi–axes ellipsoid. It turns out that potential interior is polynomial x1, x2, x3 order N + 2l. The corresponding heterogeneous elliptical disc also deduced from those by means...