The NEMO-3 results for the double-
β
decay of
150
Nd to the 0
1
+
and 2
1
+
excited states of
150
Sm are reported. The data recorded during 5.25 year with 36.6 g of the isotope
150
Nd are used in the ...analysis. The signal of the
2
ν
β
β
transition to the 0
1
+
excited state is detected with a statistical significance exceeding 5
σ
. The half-life is measured to be
T
1
/
2
2
ν
β
β
(
0
1
+
)
=
1
.
11
-
0.14
+
0.19
stat
-
0.15
+
0.17
syst
×
10
20
year, which is the most precise value that has been measured to date. 90% confidence-level limits are set for the other decay modes. For the
2
ν
β
β
decay to the 2
1
+
level the limit is
T
1
/
2
2
ν
β
β
(
2
1
+
)
>
2.42
×
10
20
year
. The limits on the
0
ν
β
β
decay to the 0
1
+
and 2
1
+
levels of
150
Sm are significantly improved to
T
1
/
2
0
ν
β
β
(
0
1
+
)
>
1.36
×
10
22
year
and
T
1
/
2
0
ν
β
β
(
2
1
+
)
>
1.26
×
10
22
year
.
Abstract The NEMO-3 results for the double- $$\beta $$ β decay of $$^{150}$$ 150 Nd to the 0 $$^+_1$$ 1 + and 2 $$^+_1$$ 1 + excited states of $$^{150}$$ 150 Sm are reported. The data recorded during ...5.25 year with 36.6 g of the isotope $$^{150}$$ 150 Nd are used in the analysis. The signal of the $$2\nu \beta \beta $$ 2 ν β β transition to the 0 $$^+_1$$ 1 + excited state is detected with a statistical significance exceeding 5 $$\sigma $$ σ . The half-life is measured to be $$T_{1/2}^{2\nu \beta \beta }(0^+_1) = \left 1.11 ^{+0.19}_{-0.14} \,\left( \hbox {stat}\right) ^{+0.17}_{-0.15}\,\left( \hbox {syst}\right) \right \times 10^{20}$$ T 1 / 2 2 ν β β ( 0 1 + ) = 1 . 11 - 0.14 + 0.19 stat - 0.15 + 0.17 syst × 10 20 year, which is the most precise value that has been measured to date. 90% confidence-level limits are set for the other decay modes. For the $$2\nu \beta \beta $$ 2 ν β β decay to the 2 $$^+_1$$ 1 + level the limit is $$T^{2\nu \beta \beta }_{1/2}(2^+_1) > 2.42 \times 10^{20}~\hbox {year}$$ T 1 / 2 2 ν β β ( 2 1 + ) > 2.42 × 10 20 year . The limits on the $$0\nu \beta \beta $$ 0 ν β β decay to the 0 $$^+_1$$ 1 + and 2 $$^+_1$$ 1 + levels of $$^{150}$$ 150 Sm are significantly improved to $$T_{1/2}^{0\nu \beta \beta }(0^+_1) > 1.36 \times 10^{22}~\hbox {year}$$ T 1 / 2 0 ν β β ( 0 1 + ) > 1.36 × 10 22 year and $$T_{1/2}^{0\nu \beta \beta }(2^+_1) > 1.26 \times 10^{22}~\hbox {year}$$ T 1 / 2 0 ν β β ( 2 1 + ) > 1.26 × 10 22 year .
Abstract The NEMO-3 results for the double- $$\beta $$ β decay of $$^{150}$$ 150 Nd to the 0 $$^+_1$$ 1 + and 2 $$^+_1$$ 1 + excited states of $$^{150}$$ 150 Sm are reported. The data recorded during ...5.25 year with 36.6 g of the isotope $$^{150}$$ 150 Nd are used in the analysis. The signal of the $$2\nu \beta \beta $$ 2 ν β β transition to the 0 $$^+_1$$ 1 + excited state is detected with a statistical significance exceeding 5 $$\sigma $$ σ . The half-life is measured to be $$T_{1/2}^{2\nu \beta \beta }(0^+_1) = \left 1.11 ^{+0.19}_{-0.14} \,\left( \hbox {stat}\right) ^{+0.17}_{-0.15}\,\left( \hbox {syst}\right) \right \times 10^{20}$$ T 1 / 2 2 ν β β ( 0 1 + ) = 1 . 11 - 0.14 + 0.19 stat - 0.15 + 0.17 syst × 10 20 year, which is the most precise value that has been measured to date. 90% confidence-level limits are set for the other decay modes. For the $$2\nu \beta \beta $$ 2 ν β β decay to the 2 $$^+_1$$ 1 + level the limit is $$T^{2\nu \beta \beta }_{1/2}(2^+_1) > 2.42 \times 10^{20}~\hbox {year}$$ T 1 / 2 2 ν β β ( 2 1 + ) > 2.42 × 10 20 year . The limits on the $$0\nu \beta \beta $$ 0 ν β β decay to the 0 $$^+_1$$ 1 + and 2 $$^+_1$$ 1 + levels of $$^{150}$$ 150 Sm are significantly improved to $$T_{1/2}^{0\nu \beta \beta }(0^+_1) > 1.36 \times 10^{22}~\hbox {year}$$ T 1 / 2 0 ν β β ( 0 1 + ) > 1.36 × 10 22 year and $$T_{1/2}^{0\nu \beta \beta }(2^+_1) > 1.26 \times 10^{22}~\hbox {year}$$ T 1 / 2 0 ν β β ( 2 1 + ) > 1.26 × 10 22 year .
The NEMO-3 results for the double-$\beta$ decay of $^{150}$Nd to the 0$^+_1$
and 2$^+_1$ excited states of $^{150}$Sm are reported. The data recorded during
5.25 yr with 36.6 g of the isotope ...$^{150}$Nd are used in the analysis. For the
first time, the signal of the $2\nu\beta\beta$ transition to the 0$^+_1$
excited state is detected with a statistical significance exceeding 5$\sigma$.
The half-life is measured to be $T_{1/2}^{2\nu\beta\beta}(0^+_1) = \left 1.11
^{+0.19}_{-0.14} \,\left(\mbox{stat}\right) ^{+0.17}_{-0.15}\,
\left(\mbox{syst}\right) \right \times10^{20}\,\mbox{yr}$. The limits are set
on the $2\nu\beta\beta$ decay to the 2$^+_1$ level and on the $0\nu\beta\beta$
decay to the 0$^+_1$ and 2$^+_1$ levels of $^{150}$Sm.
The NEMO-3 results for the double-\(\beta\) decay of \(^{150}\)Nd to the 0\(^+_1\) and 2\(^+_1\) excited states of \(^{150}\)Sm are reported. The data recorded during 5.25 yr with 36.6 g of the ...isotope \(^{150}\)Nd are used in the analysis. For the first time, the signal of the \(2\nu\beta\beta\) transition to the 0\(^+_1\) excited state is detected with a statistical significance exceeding 5\(\sigma\). The half-life is measured to be \(T_{1/2}^{2\nu\beta\beta}(0^+_1) = \left 1.11 ^{+0.19}_{-0.14} \,\left(\mbox{stat}\right) ^{+0.17}_{-0.15}\, \left(\mbox{syst}\right) \right \times10^{20}\,\mbox{yr}\). The limits are set on the \(2\nu\beta\beta\) decay to the 2\(^+_1\) level and on the \(0\nu\beta\beta\) decay to the 0\(^+_1\) and 2\(^+_1\) levels of \(^{150}\)Sm.
V článku je na případové studii ukázán přístup ke stanovení polohy chodce vůči kameře za využití prvků okolí a porovnání výsledků oproti nesprávnému postupu ovlivněnému ...navíc ručním oříznutím snímků kamerového záznamu, které je prakticky znehodnotilo. Při stanovení polohy chodce bylo využito experimentu na místě a následně také fotogrammetrie. Dále jsou ukázány postupy prvního znalce při vyhodnocení záznamu palubní kamery, které vedly k jeho nesprávným závěrům.
This study presents a calculation of the time required to execute a lane-change manoeuvre. Compared with other (and older) calculation methods, an analysis was conducted to determine which approach ...could yield the most reliable results. This study aimed to present a universal calculation method for different road surfaces, surface conditions (dry and wet road surface), and vehicle types (i.e., from small vehicles to SUVs). A total of 108 comparable manoeuvres with modern vehicles were used as a basis for statistical analysis. A new mathematical constant was found based on a regression analysis, adjusting one of the older calculation methods (so-called Kovařík equation), providing the best match between real and calculated manoeuvre duration.
Úvod
Hlavním cílem tohoto článku je představit odborné veřejnosti výstupy projektu „Moderní metody dokumentace a analýzy poškození vozidel“, řešeného Centrem dopravního výzkumu v.v.i. a Ústavem ...Soudního inženýrství VUT v Brně v rámci programu DOPRAVA 2020+, kterými jsou odborná monografie „ANALÝZA POŠKOZENÍ VOZIDEL: Průvodce metodami dokumentace a kvantifikace deformační energie“ a Specializovaná veřejná databáze – Katalog poškození vozidel.
Podklady a metody
V rámci řešení projektu byl realizován výzkum využitelnosti různých tradičních, ale i moderních metod dokumentace a následné analýzy poškození vozidel, které jsou důležitými podklady pro účely analýzy nehodového děje. Následně byla provedena validace použitelnosti vybraných metod dokumentace a analýzy poškození, v závislosti na rozsahu a charakteru poškození. Získaná data pak byla využita jako podklad pro vytvoření hlavních výstupů tohoto projektu.
Výsledky
Hlavní výstup projektu Specializovaná veřejná databáze: Katalog poškození obsahuje dvě základní části – katalog charakteristických poškození a EES katalog. Tento nástroj může sloužit jako kvalitní podklad pro nezanedbatelnou součást analýzy nehodového děje, kterou je validace vzájemné korespondence poškození vozidel po střetu. Databáze může být nedocenitelnou pomůckou při analýze nehodového děje zejména v případech, kdy jsou podklady z předmětné nehody nedostatečné (například manipulované škodní události) nebo se jedná o specifická poškození, k nimž zpravidla není v dostupných databázích nárazových testů mnoho dostupných údajů (například poškození vzniklá při nízkých rychlostech).
Membranes with polyamide thin film active layer are used in reverse osmosis-based water desalination applications. Incorporation of graphene oxide nanoplatelets (GONPs) in the polyamide layer can ...alter the surface characteristics, permeability, selectivity, and can enhance the chlorine resistance of these membranes. In this study, a layer-by-layer (LbL) synthesis technique has been developed for embedding GONPs in the polyamide layer. Polyamide layers with GONPs were synthesized in various sequences, such as alternating layers of GONPs and polyamide, and GONPs on top of the polyamide layer. Incorporation of GONPs resulted in an increase of surface hydrophilicity as captured by the change of the water contact angle. Water flux and salt rejection properties of synthesized membranes have been investigated by using a dead-end cell. The salt rejection ability of membranes increased slightly with the incorporation of GONPs, while the water flux found to be similar to that observed for the pristine membranes without GONPs. Upon exposure to chlorine, GONPs embedded membranes retained salt rejection performance better than the pristine membranes. Our approach provides an alternative framework to incorporate nanoparticles in thin film membranes in a precise manner and to investigate the effect of such nanoparticles on the membrane performances.
•Developed a layer-by-layer technique to embed graphene oxide nanoplatelets (GONPs) in polyamide (PA) matrix•GONPs embedded membranes have improved chlorine-resistance properties.•Effect of different GONPs placements in PA is examined on membrane performance.
A registry-based cross-sectional study.
To analyse the epidemiological and demographic characteristics of persons with traumatic spinal cord injury (TSCI) in Norway.
TSCI patients admitted for ...primary rehabilitation to one of the three specialised spinal cord injury (SCI) departments (located in Bergen, Trondheim, and Oslo) and consented to the Norwegian Spinal Cord Injury Registry (NorSCIR).
Analysis of data from NorSCIR during a 5-year period (2012-2016) was performed. Data were collected by using the International SCI Core Data Set as recommended by the International Spinal Cord Society (ISCoS).
The lowest incidence of TSCI was 11.4/million (2012), and the highest incidence was 15.9/million (2014). In the study period, 349 individuals were registered with TSCI. In total, 76% were male, and the mean age was 47 (SD ± 19) years. We observed dominance in the 60-74 years age group. The distribution between tetraplegia and paraplegia was 48%/42%. For those initially classified as American Spinal Cord Injury Association Impairment Scale (AIS) grade A (complete injury), 77% remained grade A at discharge. Considerable changes during primary rehabilitation after incomplete lesions were observed. Most patients (68%) were discharged home after primary rehabilitation. Falls were the main cause of TSCI (47%) and occurred more often during the weekend.
Through a National Medical Quality Registry based on internationally provided data sets, we are able to present systematic and updated data from Norway.
PDF
